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Publication numberCN1150473 A
Publication typeApplication
Application numberCN 95193501
PCT numberPCT/US1995/000061
Publication date21 May 1997
Filing date6 Jan 1995
Priority date6 May 1994
Also published asCA2189439A1, CA2189439C, CN1143073C, DE69530382D1, EP0755495A1, EP0755495A4, EP0755495B1, US5564371, US6543392, USRE38542, WO1995030861A1
Publication number95193501.1, CN 1150473 A, CN 1150473A, CN 95193501, CN-A-1150473, CN1150473 A, CN1150473A, CN95193501, CN95193501.1, PCT/1995/61, PCT/US/1995/000061, PCT/US/1995/00061, PCT/US/95/000061, PCT/US/95/00061, PCT/US1995/000061, PCT/US1995/00061, PCT/US1995000061, PCT/US199500061, PCT/US95/000061, PCT/US95/00061, PCT/US95000061, PCT/US9500061
Inventors奥古斯塔斯阿什顿, 蒂莫西洛维特, 丹菲什巴克
Applicant福斯特-米勒公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Upper bundle steam generator cleaning system and method
CN 1150473 A
Abstract  translated from Chinese
一种蒸汽发生器(10)上部管束的清洗设备包括一个可通过蒸汽发生器的一个手孔伸入的清洗头展开和支承装置(50),它包括若干个可伸缩的液压缸,用于穿过流槽(71)将清洗头上升,以便在上部管束的流槽(71)附近将其定位;一个与支承装置(50)相固定的清洗头,用以围绕蒸汽发生器(10)上部管束的管子喷射流体,由此在清洗过程中从上向下地清洗蒸汽发生器(10),并向下冲刷沉积物。 A steam generator (10) the upper part of the tube bundle cleaning apparatus comprising a hand hole of the steam generator through a cleaning head extends into the expansion and supporting device (50) comprising a plurality of telescoping hydraulic cylinders, for wear Overcurrent groove (71) the cleaning head to rise, so that the upper portion of the bundle near the gutter (71) will be positioned; a cleaning head fixed to the support means (50) for surrounding the steam generator (10) the upper part of the tube bundle The fluid jet pipe, thereby downwardly cleaning steam generator (10) from the cleaning process, downwardly scour.
Claims(27)  translated from Chinese
1.一种蒸汽发生器上部管束的清洗设备,包括:一个清洗头装置的展开和支承装置,它可进入蒸汽发生器的内部并设有围绕蒸汽发生器的上部管束提升和定位清洗头装置的装置;以及与上述支承装置相固定的清洗头装置;上述清洗头装置包括用于将清洗流体引至蒸汽发生器上部管束的管子周围的装置,以便从上向下地清洗蒸汽发生器,由此在清洗过程中向下冲刷沉积物。 An upper portion of the steam generator tube bundle cleaning device, comprising: a cleaning head device to expand and support means, which can enter the interior of the steam generator and a steam generator tube bundle around the upper lifting and positioning means of the cleaning head means; and a support means fixed to said cleaning head means; said first means includes means for cleaning the cleaning fluid is introduced to the apparatus around the pipe upper portion of the steam generator tube bundle in order cleaning downwardly from the steam generator, whereby scour sediment down the cleaning process.
2.如权利要求1所述的设备,其特征在于:上述的清洗头装置的展开和支承装置包括一个平移轨道,该平移轨道沿排放通道在蒸汽发生器的一个手孔和一中心拉杆之间延伸。 2. The apparatus according to claim 1, characterized in that: said support means to expand and cleaning head device comprises a translation between the tracks, the translation track along the discharge passage in a hand hole of the steam generator and a central rod extension.
3.如权利要求2所述的设备,其特征在于:上述的展开和支承装置还包括一个旋转架,该旋转架包括一可绕枢轴转动地安装在上述平移轨道上的若干个沿垂直方向可伸缩的液压缸。 3. The apparatus according to claim 2, wherein: said deployment and support means further comprises a rotating frame, which comprises a rotating frame pivotally mounted on said track a plurality of translation in the vertical direction telescopic hydraulic cylinder.
4.如权利要求1所述的设备,其特征在于:上述清洗头装置包括用于将清洗流体从流槽喷向管间的装置。 4. The apparatus according to claim 1, wherein: said first means includes means for cleaning the cleaning means between the tubes from the fluid flow grooves ejected.
5.如权利要求4所述的设备,其特征在于:上述的用于将清洗流体从一流槽向管间喷射的装置包括一个可沿流槽方向伸长的臂,上述臂具有多个可与管间的间隙对准的喷咀。 5. The apparatus according to claim 4, wherein: said means for the wash fluid to the groove between the pipe leading from the ejection means comprises a slot elongated along the flow direction of the arm, said arm having a plurality of the gap between the aligned nozzle tube.
6.如权利要求5所述的设备,其特征在于:上述的多个喷咀彼此相对的配置,以便同时清洗流槽两侧的管子并平衡由所述臂所承受的任何侧向力。 6. The apparatus according to claim 5, wherein: said plurality of nozzles relative to each other in configuration, so as to simultaneously clean both sides of the tube and the flow cell by the balance arm is subjected to any lateral forces.
7.如权利要求5所述的设备,其特征在于:还包括用于改变上述喷咀的俯仰角取向的装置。 7. The apparatus according to claim 5, characterized in that: further comprising means for changing the pitch angle of orientation of said nozzle means.
8.如权利要求5所述的装置,其特征在于:还包括用于旋转上述臂,以便围绕在一相邻流槽附近的管子喷射清洗流体的装置。 8. The apparatus as claimed in claim 5, characterized in that: further comprising means for rotating said arm, so as to surround the flow channel in the vicinity of an adjacent tube jetting washing fluid.
9.如权利要求4所述的设备,其特征在于:上述的清洗头装置包括用于将清洗流体从管子其间喷向管间的装置。 9. The apparatus according to claim 4, characterized in that: said cleaning head means comprises means for wash fluid between the tubes from the tube therebetween ejected.
10.如权利要求9所述的设备,其特征在于:上述的用于从管子其间喷射清洗流体的装置包括一个可在管间伸出的喷枪,上述喷枪有若干个喷咀,以便将清洗流体从管子其间喷射到管子周围。 10. The apparatus according to claim 9, wherein: said means for ejecting cleaning fluid from the tube therebetween comprises a tube extending between the spray gun, said spray gun has a plurality of nozzles, so that the cleaning fluid During spray from a hose into the surrounding pipe.
11.如权利要求10所述的设备,其特征在于:上述喷枪可从一围绕上述支承装置的位置转至位于管间的一个位置。 11. The apparatus of claim 10, wherein: said spray gun from a position about said support means is transferred in a position between the tubes.
12.如权利要求1所述的设备,其特征在于:还包括用于围绕一流槽可拆卸地支承上述清洗头装置的装置。 12. The apparatus according to claim 1, characterized by: further comprising means for surrounding the leading slot detachably supporting said cleaning head means.
13.如权利要求12所述的设备,其特征在于:上述的用于可拆卸地支承的装置包括可与加热管隔板的支承板上的流槽侧壁接合的指状物。 13. The apparatus of claim 12, wherein: said means for removably supporting the heating means comprises a tube sheet support plate of the flow cell sidewall engaging fingers.
14.一种核电站的蒸汽发生器上部管束的清洗设备,用于从上向下地清洗该蒸汽发生器,由此在清洗过程中向下冲刷沉积物,该设备包括:一个清洗头展开和支承装置,该装置包括用于在蒸汽发生器上部管束附近的一个流槽处使清洗头定位的装置;一个可固定在上述支承装置上的主体清洗头,该清洗头包括用于将清洗流体从上述流槽引向管间的装置;以及一个可固定在上述支承装置上的清洗头喷枪,该喷枪包括用于将清洗流体从管子中间喷向管间的装置。 14. A nuclear power plant steam generator tube bundle of the upper portion of the cleaning equipment for cleaning the downwardly from the steam generator, thereby flushing deposits downward during the cleaning process, the apparatus comprising: a cleaning head to expand and support means , the apparatus comprising an upper portion of the steam generator tube bundle in a gutter at the location near the head of the cleaning means; a support means secured to said main body of the cleaning head, the cleaning head comprises the cleaning fluid from the flow groove redirecting means between the tubes; and a support means secured to said cleaning head spray gun comprising means for the wash fluid from the intermediate tube between the tube ejected.
15.如权利要求14所述的设备,其特征在于:上述的主体清洗头包括一个可沿流槽方向伸长的臂,上述臂有多个可与上述流槽附近的管间间隙对准的喷咀。 15. The apparatus of claim 14, wherein: said body includes a cleaning head along the elongated direction of the arm flow channel, the arm has a plurality of tubes with a gap between the flow channel near the aligned nozzle.
16.如权利要求15所述的设备,其特征在于:上述的多个喷咀彼此相对的配置,以便同时清洗上述流槽两侧的管子并平衡由上述臂所承受的任何侧向力。 16. The apparatus of claim 15, wherein: said plurality of nozzles relative to each other in configuration, so as to simultaneously clean both sides of the pipe and said flow groove by the balance arm is subjected to any lateral forces.
17.如权利要求15所述的设备,其特征在于:还包括用于改变上述喷咀的俯仰角取向的装置。 17. The apparatus according to claim 15, characterized in that: further comprising means for changing the pitch angle of said nozzle orientation.
18.如权利要求15所述的设备,其特征在于:还包括用于旋转上述臂,以便围绕在一相邻流槽附近的管子喷射清洗流体的装置。 18. The apparatus according to claim 15, characterized in that: further comprising means for rotating said arm, so as to surround the flow channel in the vicinity of an adjacent tube jetting washing fluid.
19.如权利要求14所述的设备,其特征在于:上述喷枪可伸至管间的一个位置,上述喷枪有若干个喷咀,以便从管子中间围绕管子喷射清洗流体。 19. The apparatus of claim 14, wherein: said lance tube may be extending to a position between the lance has several nozzles, the tube from the intermediate tube so as to surround the jetting of washing fluid.
20.如权利要求19所述的设备,其特征在于:上述喷枪可从一围绕用于展开喷枪的支承装置的位置转至一在管间以进行清洗的位置。 20. The apparatus of claim 19, wherein: said lance is rotatable about the position of the gun support device for deployment from one in one go between the tubes for cleaning position.
21.如权利要求14所述的设备,其特征在于:还包括用于围绕蒸汽发生器的加热管隔板支承上述清洗头的装置。 14 21. The apparatus according to claim, characterized by: further comprising means for surrounding the steam generator tube sheet support means heating the cleaning head.
22.一种从上向下清洗蒸汽发生器的方法,该方法包括:将一清洗头装置穿过蒸汽发生器的一个手孔插入并将该清洗头向上伸至一个在蒸汽发生器上部管束的一个流槽附近的位置;围绕贴近上述清洗头装置的上部管束喷射清洗流体;依次地降下上述清洗头并将其在下一层流槽附近重新定位;以及再次围绕贴近清洗头装置的管束喷射清洗流体,由此在清洗过程中向下冲刷沉积物。 22. A method of cleaning a steam generator from the top down, the method comprising: a cleaning head device through a hand hole of the steam generator is inserted and the cleaning head extends upwardly at an upper portion of the steam generator tube bundle A chute nearby location; close around the upper part of the cleaning head unit bundles jet cleaning fluid; in turn lowered the cleaning head and reposition the next layer flow near its trough; and close around the head cleaning device bundles jet cleaning fluid again thereby flushing deposits downward during the cleaning process.
23.如权利要求22所述的方法,其特征在于:围绕管束喷射清洗流体的步骤包括从一位于一流槽周围的清洗头喷洗管子。 23. The method of claim 22, wherein: the step around the injection tube bundle from the cleaning fluid comprises a groove located around the wash head class spray pipe.
24.如权利要求23所述的方法,其特征在于:围绕管束喷射清洗流体的步骤包括将清洗头定位,以便清洗上述流槽附近的管子;将上述清洗头移动到一个贴近一相邻流槽的位置,以便清洗那个流槽附近的管子;然后再将上述清洗头移至贴近另一相邻流槽的位置,以便清洗那个相邻流槽附近的管子,由此,实现全面清洗所涉及的区域而不必缩回清洗头装置。 24. The method of claim 23, wherein: the step around the tube bundle jetting washing fluid comprises positioning the cleaning head, for cleaning the flow channel close to the tube; said cleaning head is moved to a closer to an adjacent flow slot position, to clean the flow cell close to the tube; then the cleaning head moves close to the position of another adjacent flow slot for cleaning the tubes near the adjacent flow slot, thereby to achieve a comprehensive cleaning involved areas without retracting the cleaning head unit.
25.如权利要求23所述的方法,其特征在于:围绕管束喷射清洗流体的步骤包括首先在管隙的一侧上喷水,然后在管隙的另一侧上喷水。 25. The method of claim 23, wherein: step of jetting washing fluid comprises a bundle on a first side of the tube gap of water, and then spray on the other side of the gap around the tube.
26.如权利要求22所述的方法,其特征在于:围绕管束喷射清洗流体的步骤包括在两排管子之间插入一个清洗头。 26. The method of claim 22, wherein: step of jetting washing fluid comprises a tube bundle between two rows of tubes inserted one wash head around.
27.如权利要求22所述的方法,其特征在于;还包括向蒸汽发生器注水并且在降下清洗头时使其内的水位下降,这样当射出的清洗流体与水面撞击时,产生额外的搅动和清洗作用。 27. The method according to claim 22, characterized in that; when the steam generator further comprises water and the water level in the wash head is lowered so that the drop, so that when the cleaning fluid exiting the impact with the water, generate additional agitation and cleaning effect.
Description  translated from Chinese
蒸汽发生器上部管束的清洗设备和方法 The upper part of the steam generator tube bundle cleaning equipment and methods

本发明涉及一种用于核电站的蒸汽发生器的上部管束清洗设备,该设备免除了采用化学清洗技术的必要。 The present invention relates to an upper portion of a steam generator for nuclear power plant tube bundle cleaning device which eliminates the need to use chemical cleaning techniques.

蒸汽发生器将核电站一回路侧的热能转化为二回路侧的蒸汽,从而使一回路和二回路系统保持分离。 The heat of a nuclear power plant steam generator circuit side is converted into steam two circuit side, so that the one-loop and two-loop systems remain separate. 常用的蒸汽发生器是一个立式的筒体,它包括从蒸汽发生器的底层或“加热管隔板”伸出的许多U型管。 The steam generator is a common vertical cylinder, comprising a plurality of U-tube steam generator from the bottom or "heat pipe separator" projecting. 来自核反应堆的高温高压流体穿过蒸汽发生器中的管子,将释放能量给管子周围的给水管道,以转化为蒸汽,并在将蒸汽送入汽轮机时,最终产生动力。 High temperature and pressure fluid from a nuclear reactor through the steam generator tube, the release of energy to the water supply pipe around the pipe, to be converted to steam, and when the steam turbine is fed, ultimately produce power.

蒸汽发生器的设计寿命应在四十年以上,但在实际上,可靠性数据已证实达不到这个使用寿命。 Steam generator design life should be more than four decades, but in fact, the reliability of the data has been proven to meet this life. 其问题在于,在进水中悬浮的颗粒杂质在管壁上形成泥状沉积物,这大大影响了蒸汽发生器的效率,甚至可以导致管子剥蚀到使管子产生龟裂的程度。 Its problem is that, in the influent particulate impurities suspended sludge is formed in the wall, which greatly affects the efficiency of the steam generator and can even cause the tubes to the tube cracks and erosion extent. 如果管内的放射性一次流体渗入二回路侧,其后果不堪设想。 If the tube is a radioactive fluid penetrate two circuit side, the consequences could be disastrous. 对这种龟裂的堵漏或其它的检修方式是非常耗时的,并且导致在停机期间必须花费大量费用从其它渠道购买动力。 This plugging cracks or other maintenance approach is very time consuming and lead to have to spend a lot of costs incurred during the shutdown purchase power from other sources.

清洗蒸汽发生器底部附近的管子的方法是众所周知的,它采用挠性喷枪或类似装置用压力水进行清洗;但是由于常用的蒸汽发生器可高达三十英尺,所以很难用水流清除上层管子处的沉积物。 Cleaning near the bottom of the steam generator tubes are well known, which uses a flexible lance or the like with a pressure water for cleaning; However, due to commonly used steam generator up to thirty feet, it is difficult to remove water at the upper layer of the tube sediments. 因此,尽管化学清洗有若干缺陷,也不得不采用化学清洗。 Thus, although there are several drawbacks of chemical cleaning, but also had the use of chemical cleaning. 首先,化学清洗的费用非常昂贵(每次约花费伍佰万至壹仟万美元)并且需要延长停机时间。 First, the chemical cleaning of very expensive (each about five hundred million to spend one thousand million) and the need to extend the downtime. 另外,在清洗过程中,蒸汽发生器的内部会由所采用的溶剂造成在一定程度上的腐蚀。 Further, in the cleaning process, the interior of the steam generator will cause corrosion to some extent by the solvent used. 此外,还可能产生大量有害的,甚至可能是放射性的废渣,对这种废渣的处理也十分昂贵。 It may also produce large amounts of harmful and may even be radioactive waste, this waste treatment is also very expensive. 为此,虽然许多核电站已考虑采用化学清洗,但几乎没有几个核电站真正实施过化学清洗。 For this reason, although many nuclear power plants have been considered the use of chemical cleaning, but almost no real implementation of several nuclear power plants by chemical cleaning.

另一方面,当考虑替代清洗方法时,还会面临着一些技术难题。 On the other hand, when considering alternative cleaning methods, but also faces some technical problems. 常用的蒸汽发生器的热交换面积大约有50,000平方英尺。 Commonly used heat exchange area of the steam generator about 50,000 square feet. 管束的直径约10英尺,高约30英尺;但是管束中间的进出通道仅有3.5英寸宽,而且每隔大约4英尺就被支承板隔断。 Bundle diameter of about 10 feet, a height of about 30 feet; and out of the middle of the channel, but the bundle is only 3.5 inches wide, and about every four feet supporting plate was cut off. 虽然设有穿过支承板的流槽,但其尺寸很小,通常只有2.75英寸15英寸。 Although provided with a flow channel through the support plate, but its small size, usually only 2.75 inches 15 inches. 此外,蒸汽发生器的检修孔仅限于一个6英寸的手孔。 In addition, manhole steam generator is limited to a 6-inch hole hand. 最后,管间的间隙只有0.406英寸宽或更窄。 Finally, the gap between the tubes and only 0.406 inches wide or narrower.

因此,尽管用水流喷除沉积物的清洗技术适于清洗位于蒸汽发生器底部大部分上的加热管隔板处的管子,但常用的蒸汽发生器的固有设计参数使之难以在上部管束处采用此技术来清洗。 Thus, although the spray tube is heated with water at most tubesheet on Cleaning Technology in addition to sediment at the bottom of the steam generator adapted for cleaning, but the inherent design parameters commonly used in the steam generator make it difficult to employ in the upper part of the tube bundle This technique for cleaning. 参见例如美国专利US4,700,662;4,980,120;4,887,555;4,676,201;和4,769,085。 See for example, US patent US4,700,662; 4,980,120; 4,887,555; 4,676,201; and 4,769,085.

因此,本发明的一个目的在于提供一种蒸汽发生器上部管束的清洗设备。 Accordingly, an object of the present invention is to provide a steam generator tube bundle cleaning device upper portion.

本发明的另一目的在于提供这样一种蒸汽发生器上部管束的清洗设备,即该设备在清洗期间从上向下清洗蒸汽发生器并由此向下冲刷沉积物。 Another object of the present invention is to provide such an upper portion of the steam generator tube bundle cleaning device, i.e. the device during cleaning the cleaning of the steam generator from the top down and thereby flushing deposits downward.

本发明的再一目的在于提供这样一种蒸汽发生器上部管束的清洗设备,即该设备免除了采用化学清洗技术的必要并克服了化学清洗本身所固有的弊端,或者该设备可以与化学清洗一起采用。 A further object of the present invention is to provide such an upper portion of the steam generator tube bundle cleaning device, i.e. the device eliminates the need to use chemical cleaning techniques and overcomes the chemical cleaning inherent drawbacks, or the apparatus may, together with chemical cleaning adoption.

本发明的目的还在于提供这样一种蒸汽发生器上部管束的清洗设备,即它适于采用压力水清洗蒸汽发生器的上部管束,即便是在蒸汽发生器极狭窄的管区内。 Object of the present invention is to provide a steam generator tube bundle of the upper portion of the cleaning equipment, i.e. it is adapted to use pressure water cleaning of the upper portion of the steam generator tube bundle, even in an extremely narrow tube steam generator region.

本发明的目的还在于提供一种蒸汽发生器上部管束的清洗设备,该设备成功地输送充足的水能以清除管垢,并且还能以一种有效的方式将上述能量分布在整个管束中。 Object of the present invention is to provide an upper portion of the steam generator tube bundle cleaning apparatus which successfully delivering adequate water can remove pipe scale, and also in an effective manner the above-described energy distribution throughout the tube bundle.

本发明的目的还在于提供一种蒸汽发生器上部管束的清洗设备,该设备可进行远程清洗,由此克服了蒸汽发生器的进出通道狭窄所带来的限制并减少了人员受到辐射的危险。 Object of the present invention is to provide an upper portion of the steam generator tube bundle cleaning device that can be remotely cleaned, thereby overcoming the limitations of the steam generator and out of the narrow channel and brought reducing the risk of personnel exposure to radiation.

本发明的目的还在于提供一种蒸汽发生器上部管束的清洗设备,它可以最小的耗水量最大限度地提高清洗效率。 Object of the present invention is to provide an upper portion of the steam generator tube bundle cleaning device, it is possible to minimize the water consumption to maximize cleaning efficiency.

本发明的目的还在于提供一种蒸汽发生器上部管束的清洗设备,该设备最大限度地减少了清洗过程中设备的移动次数,由此减少清洗时间并因此而减少了停机时间。 Object of the present invention is to provide an upper portion of the steam generator tube bundle cleaning apparatus which minimizes the cleaning process the number of mobile devices, thereby reducing the cleaning time and thereby reduces downtime.

本发明的目的还在于提供一种蒸汽发生器上部管束的清洗设备,该设备可同时采用一主体清洗头,和一根适于管间检查和清洗的刚性喷枪。 Object of the present invention is to provide an upper portion of the steam generator tube bundle cleaning device which can simultaneously use a main cleaning head, between the tube and a suitable rigidity of the gun inspection and cleaning.

本发明的目的还在于提供一种用于从上到下的清洗蒸汽发生器的方法,由此,在采用本发明的装置进行清洗的过程中,向下冲刷沉积物。 Object of the present invention is to provide a method of cleaning a steam generator for a top to bottom, whereby, in the process of the present invention, an apparatus for washing, the downward scour.

本发明是基于下述认识而做出的,即清洗蒸汽发生器的最有效的方式是自上而下的清洗,由此在清洗过程中向下冲刷沉积物;有一个出入通道通至蒸汽发生器的上部区域;如果将压力流体输送至管子周围的清洗头可沿上述出入通道从蒸汽发生器的底部伸出并穿过连续的流槽上升到冲洗位置,蒸汽发生器的这些上部区域就可以不采用化学清洗技术而得到清洗;另外,在蒸汽发生器一侧同一高度的所有管子可以从一个流槽处得到冲洗,由此最大限度地减少了设备移动的次数和清洗时间;可以采用一个机械的摆动臂来进行大部分清洗工作;摆动臂的喷咀首先对准管隙的一侧,然后对准另一侧,以便用最小的水量最佳的清洗效果清洗所有管子的表面;并且伸入两排管子之间的刚性喷枪可进行管间的有效清洗。 The present invention has been made based on the understanding that the cleaning of the steam generator is the most effective way of washing from top to bottom, thereby flushing deposits downward during the cleaning process; there is a through-channel access to the steam generating the upper region; if the pressure fluid delivered to the cleaning head around the tube and may protrude through the continuous flow cell up to the flushing position from the bottom of the steam generator along the access path, the steam generator of the upper region can do not use chemical cleaning techniques are cleaned; Further, one side of all the tubes in the steam generator of the same height can be flushed from the tank at a flow, thereby minimizing the number of equipment moves and cleaning time; may be used a mechanical The swing arm for most cleaning; nozzle side of the swing arm first alignment tube gap, then aligning the other side, in order to use the minimum amount of water to clean the surface of the best cleaning results all tubes; and extends into Rigid lance between the two rows of tubes can be effectively cleaned between the tubes.

本发明的特征在于蒸汽发生器上部管束的清洗设备,并且本发明可适当地包括、包含、主要由和/或由蒸汽发生器上部管束的清洗设备所组成。 The present invention is characterized in that the upper portion of the steam generator tube bundle cleaning equipment, and the present invention may suitably comprise, consist of, mainly, and / or by the upper portion of the steam generator tube bundle cleaning device composed. 有一个可穿过蒸汽发生器的一个手孔的清洗头装置的展开和支承装置,它包括将一清洗头定位在蒸汽发生器上部管束的流槽附近的装置。 Expand and support means having a cleaning head device may pass through a hand hole of the steam generator, which comprises a washing head is positioned in the vicinity of the flow cell means the upper portion of the steam generator tube bundle. 固定在该支承装置上的清洗头装置将清洗流体射向蒸汽发生器上部管束的管子周围,以便自上而下地清洗蒸汽发生器,由此在清洗过程中向下冲刷沉积物。 Fixed to the support means of the cleaning head device around the cleaning fluid toward the upper portion of the steam generator tube bundle tubes, from top to bottom in order to clean the steam generator, thereby flushing deposits downward during the cleaning process.

清洗头装置的展开和支承装置包括一根移动轨道,该轨道沿排放通道在蒸汽发生器的手孔和中心拉杆之间延伸。 Cleaning head unit deployment and support means includes a moving track, the track along the discharge channel between the hand and the center hole of the steam generator extension rod. 设有一个旋转架,该旋转架包括可转动地安装在移动轨道上的若干个可垂直伸长的液压缸。 It has a rotating frame, the rotating frame comprises a plurality of hydraulic cylinders may be elongated vertically rotatably mounted on a moving track.

一种清洗头装置包括用于将清洗流体从流槽射入管间的装置,例如,一可沿流槽方向伸长的臂,其中,所述臂包括多个可与管子之间的间隙对准的喷咀。 A cleaning head comprises means for wash fluid from the flow channel means between the injection tube, for example, a groove along the flow direction of the elongated arm, wherein the arm comprises a plurality of the gap between the tubes quasi nozzle. 使多个喷咀彼此相对的配置,以便同时清洗流槽两侧的管子并平衡由所述臂所承受的侧向力。 The plurality of nozzle configuration relative to each other so as to simultaneously clean both sides of the tube chute and balance by the lateral force to bear arms. 还设有用于改变喷咀的俯仰角取向的装置和用于使臂转动的装置,以将清洗流体喷至相邻流槽附近的管子周围。 There is also a pitch angle for changing the orientation of the nozzle means and a means for rotating the arm to spray the cleaning fluid to flow around the vicinity of the tube adjacent the groove.

另一种清洗头装置包括用于将清洗流体从管子中间引入管间的装置。 Another cleaning head means comprises means for introducing the wash fluid between the tubes from the middle of the tube. 用于引导来自管其间的清洗流体的装置包括一根可伸入管间的喷枪;该喷枪上有若干喷咀,用于将流体从管子当中喷射到管子周围。 Means for directing the wash fluid from the tube therebetween comprises a tube can be inserted into the gun between; a number of nozzles for ejecting a fluid from the pipe to which the pipe around the lance. 喷枪可从围绕用于展开清洗头的支承装置的一个位置转到管间的一个位置,以便清洗。 The gun can be used to expand from a position around the cleaning head support means to a position between the tubes for cleaning.

本发明的清洗设备还包括在流槽附近用于可拆卸地支承清洗头的装置。 The cleaning apparatus of the present invention further comprises in the vicinity of the flow cell for detachably supporting the cleaning head device. 该可拆卸的支承装置包括可与加热管隔板的支承板上的流槽侧壁接合的可旋转的指状物。 The removable support means comprises a rotatable fingers with the heating tube sheet support plate of the flow cell sidewall engagement.

本发明的特点还在于:核电站的蒸汽发生器上部管束的清洗设备用于从上向下地清洗发生器,由此在清洗过程中向下冲刷沉积物;该设备包括:一清洗头展开和支承装置,其设有用于在蒸汽发生器的上部管束周围将清洗头定位在一流槽处的装置;一可与支承装置固定的主体清洗头,它设有用于将清洗流体从流槽引入管间的装置;以及一也可与支承装置固定的清洗头喷枪,该喷枪包括用于从管间将清洗流体引入管其间的装置。 Feature of the present invention is further characterized by: the upper part of nuclear power plant steam generator tube bundle cleaning apparatus for cleaning the generator from the downward, thereby flushing deposits downward during the cleaning process; the apparatus comprising: a cleaning head to expand and support means which is provided for in the upper part of the steam generator tube bundle cleaning around the head positioning device at a first-class tank; a body with a fixed support means cleaning head, which is provided for the cleaning fluid is introduced into the device from the flow channel between the tubes ; and a cleaning head can be fixed gun and the support means, including the gun from between the pipes for the cleaning fluid into the tube during the device.

主体清洗头包括一可沿流槽的方向伸长的臂,该臂有多个可与在流槽附近的管子之间的间隙对准的喷咀。 Main cleaning head comprises a groove along the flow direction of the elongated arm, the arm has a plurality of gaps between the flow cell and the vicinity of the tube aligned nozzle. 该多个喷咀彼此相对地配置,以便同时清洗流槽两侧的管子并平衡由所述臂所承受的侧面力。 The plurality of nozzles arranged opposite one another, so as to simultaneously clean both sides of the tube and the flow cell by the balance arm are exposed to side forces. 本发明的设备还包括用以改变喷咀的俯仰角取向和旋转所述臂的装置,从而围绕流槽附近的管子喷射清洗流体。 Apparatus of the present invention further comprises a pitch angle orientation and rotation of said arm means to vary the nozzle so as to surround the injector tube near the flow cell wash fluid. 清洗头喷枪可延伸到管子当中并且设有若干喷咀,用以从管子当中围绕管子喷射清洗流体。 Gun cleaning head tube which extends to and has a number of nozzles to spray around the pipe from which the pipe cleaning fluid. 喷枪可从围绕用于展开的支承装置的一个位置转到管间用以清洗的一个位置。 A position supported by the device from around the gun used to expand to a position between the pipes for cleaning. 该清洗设备还包括用于在蒸汽发生器的加热管隔板的支承附近支承清洗头的装置。 The cleaning apparatus further comprises a support means for supporting the vicinity of the cleaning head for heating the steam generator tubesheet.

最后,本发明的特点还在于提供一种从上向下清洗蒸汽发生器的方法,其中:通过蒸汽发生器的一个手孔插入一清洗头装置并将其伸到一在蒸汽发生器的上部管束附近的位置;围绕清洗头装置附近的管束喷射清洗流体;使清洗头依次下降并在紧接上一位置的下层流槽附近重新定位;然后再一次将清洗流体射向清洗头装置附近的管束,由此在清洗过程中向下冲刷沉积物。 Finally, features of the present invention is to provide a method of cleaning a steam generator from the top down method, wherein: a cleaning head device is inserted and extends in the upper portion of a steam generator tube bundle through a hand hole of the steam generator near the position; cleaning head device close around the tube bundle jetting washing fluid; successively lowered and the cleaning head in the immediately vicinity of a position of the lower flow channel repositioning; then again wash fluid toward the vicinity of the cleaning head device bundle, thereby flushing deposits downward during the cleaning process.

本方法包括从位于一流槽附近的清洗头喷洗管子的步骤;其中将清洗头定位,先清洗该流槽附近的管子;然后将清洗头移至在一相邻流槽附近的位置,以便清洗那个流槽附近的管子;然后再将清洗头移至另一相邻流槽附近的适当位置,以便清洗那个相邻流槽附近的管子;由此实现整个区域的清洗而无须穿过流槽将清洗头装置缩回。 The method includes the steps of washing the tube leading from near the head of the spray tank cleaning; where the cleaning head positioning, tank cleaning of the stream near the tube; then head to wash in a stream near the location of an adjacent slot for cleaning That chute near the tube; then wash the head to the proper location near another chute adjacent to clean the pipes near the adjacent stream channel; thus achieving clean the entire area without passing through the flow channel will cleaning head unit is retracted.

该方法还包括首先在管隙的一侧喷水,然后在管隙的另一侧喷水,以便有效的清洗和节约用水。 The method further includes first side of the tube gap water, and then on the other side of the water tube gap for effective cleaning and water conservation. 最后,本方法还包括向蒸汽发生器加水,并且随着清洗过程的进展,使水位下降,由于从清洗头的喷咀中喷出的水撞击蒸汽发生器内的水面,从而提供了搅动作用,使清洗效果更加完善。 Finally, the method further comprises adding water to the steam generator, and with the progress of the cleaning process, so that the water level drops, due to the discharge from the cleaning head nozzle surface water impact inside the steam generator, thereby providing agitation, The cleaning effect is more perfect.

根据附图和下列的对较佳实施例的说明,本领域的技术人员便可了解本发明的其它目的,特征和优点;附图包括:图1是核电站的一种常用蒸汽发生器的局部剖切的示意图;图2是在图1所示蒸汽发生器内用于将各种清洗头伸到并支承在不同高度的展开装置的示意图;图3是本发明的主体清洗头装置的示意图,用于从蒸汽发生器的管支承板的流槽喷水;图4是图3所示主体清洗头装置在流槽内就位向两排管间喷水的示意图;图5A-5C是采用图3-4所示主体清洗头装置清洗常用蒸汽发生器同一层不同部位的清洗方法的顶视平面图;图6是表示进行喷射俯仰角度控制并摆动喷咀臂的机构的主体清洗头装置各部件的示意图;图7A-7D是本发明的清洗头装置的刚性喷枪的示意图,将该喷枪插入管间,由此将压力水从所在管子中间射入蒸汽发生器的管间;图8A-8C是位于蒸汽发生器某一层上的图7A-7C所示刚性喷枪的示意图; According to the drawings and the following description of the preferred embodiments, those skilled in the art can understand the other objects, features and advantages of the present invention; in which: Figure 1 is a partially cross-sectional of a common nuclear power plant steam generator cut schematic; Fig. 2 is used in the steam generator shown in FIG. 1 Various cleaning head into and supported at different heights schematic deploying device; FIG. 3 is a schematic view of the present invention, the main body of the cleaning head device, with in water from the flow channel of the steam generator tube support plate; FIG. 4 is shown in Figure 3 the main cleaning head device in a schematic view of the tank to flow between the two rows of water tubes in place; FIG. 5A-5C is the use of Figure 3 body shown -4 cleaning head device common steam generator cleaning top plan view of the same layer in different parts of the cleaning method; FIG. 6 is a schematic view showing the pitch angle control injection nozzle body and the swing arm mechanism of the respective member head cleaning device will be ; Fig. 7A-7D are schematic views of the rigid lance cleaning head device of the present invention, the lance is inserted between the tube, whereby the pressure of the water from where the pipe enters the intermediate pipe between the steam generator; Fig. 8A-8C are located in the steam FIG generator on a layer 7A-7C illustrated a schematic view of the rigid lance;

图9是表示采用根据本发明的主体清洗头装置和刚性喷枪的典型管支承板涉及区域的示意图;图10A-10D是表示采用图6-7所示刚性喷枪对管束进行检查、清洗和除垢的各个位置的示意图;图11是本发明的支承装置的三维示意图,它用于在清洗头采用高压流体时保持该特定的清洗头处于适当位置;图12A-12C是表示支承装置的示意前视图,该装置穿过一典型的蒸汽发生器的支承板并最终与其接合;图13是用于向本发明的清洗头供水和提供视频电路耦合的本发明的操作系统的示意图;图14是清洗期间在蒸汽发生器内用于拉伸和操纵本发明的清洗头的本发明控制子系统的示意图。 9 shows the use of the rigid lance cleaning head device and a typical schematic view of the tube support plate relates region under the principal of the present invention; Figure 10A-10D illustrates the use of the spray gun shown in Figure 6-7 of the rigid tube bundle inspection, cleaning and descaling a schematic view of each position; FIG. 11 is a three-dimensional illustration of the present invention, the support means, which is used to maintain the particular cleaning head in place during the cleaning head using a high pressure fluid; FIG. 12A-12C are a schematic front view showing the supporting means Figure 14 is a cleaning period; the apparatus through a typical steam generator of the support plate and eventually engaged therewith; FIG. 13 is a schematic view of the cleaning head to the operating system to provide water supply and coupled to the video circuit of the present invention is used in the present invention In the steam generator for stretching and manipulation of the cleaning head of the present invention is a schematic diagram of a control subsystem of the present invention.

图1示意地示出了蒸汽发生器10,该蒸汽发生器包括由管支承板14,16,18,20,22,24和26分成几段的换热管12。 Figure 1 schematically illustrates a steam generator 10, the steam generator comprises a tube support plate 26 is divided into sections 14,16,18,20,22,24 and 12 of the heat exchange tubes. 如第一层管支承板14所示,每块管支承板包括若干流槽28和30。 As shown in the first layer of the tube support plate 14, each tube support plate includes a plurality of flow grooves 28 and 30.

由西屋公司设计的W44和W51型蒸汽发生器占据了蒸汽发生器的最大市场份额,并且W51型的尺寸与W44型类似。 Designed by Westinghouse W44 and W51-type steam generators accounted for the largest market share in the steam generator, and W51 and W44 type size similar type. W44型蒸汽发生器所采用的管支承板的直径为116″,加热管隔板上方的管支承板均匀相间51″。 The diameter of the tube support plate W44 type steam generator used for 116 ", above the heating pipe separator tube support plate 51 uniformly spaced." 设有两个直径为6″的手孔,例如在加热管隔板32的标高上,在31/2″的排放通道38各端的手孔36。 There are two diameter of 6 "hand hole, for example in the elevation of the heating tube 32 of the separator, in 3 1/2" hand holes 38 of the discharge passage 36 at each end. 每块加热管隔板的支承板有三个流槽,尺寸为2-2 3/4″15″,距中心拉杆40每侧的间距为4″。使流槽彼此相互对准,以便从排放通道38至顶层管支承板26上方的U型弯管41有一条“视线”清楚的垂直通道。 Each heating tubesheet support plate has three flow slots, a size of 2-2 3/4 " 15", 40 spaced from the center of each side of the lever 4. "Mutually aligned with each other so that the flow cell, so that from the discharge passage 38 to the top tube support plate 26 above the U-bend 41 has a "line of sight" vertical passage clear.

如上文在本发明的背景技术中所述的,在蒸汽发生器的底部,通过喷水来清洗在加热管隔板32和第一层加热管隔板的支承板14之间的区域的装置是已知的,但是蒸汽发生器的上部管束内非常狭窄的区间使得对上部支承板16-26附近的管束的清洗十分困难。 As described in the background according to the present invention, in the bottom of the steam generator, by water jet cleaning means the region between the heating tube 32 and the first spacer layer is heated tube sheet support plate 14 is known, but the upper part of the tube bundle of the steam generator such that a very narrow range of 16-26 near the upper support plate tube bundle cleaning very difficult. 参见例如美国专利US 5,265,129。 See, e.g., U.S. Patent No. US 5,265,129.

在本发明中,已经认识到要形成一条进出通道34,它从手孔36沿排放通道38至中心拉杆40,然后,该通道向上穿过各块支承板上相互对准的流槽28、30等,直至蒸汽发生器的顶部42。 In the present invention, it has been recognized to be formed out of a channel 34, which lever 40 from hand hole 36 along the discharge passage 38 to the center, and then upwardly through the channel of each block support plate mutually aligned flow slots 28, 30 etc., until the top of the steam generator 42. 并且,还已认识到:如果一个清洗头或若干个清洗头可伸到蒸汽发生器的顶部42,就可以从上向下地清洗该蒸汽发生器,从而在清洗期间向下冲洗沉积物。 And, has also been recognized that: if a cleaning head or a plurality of cleaning heads may project to the top of the steam generator 42, can be cleaned downwardly from the steam generator, thereby flushing deposits downward during the cleaning. 技术上所面临的难题是设计出适于在蒸汽发生器内部的狭窄区间内使用的清洗头,设计出还可输送有足以彻底清洗管子的压力的水的清洗头,以及设计出在蒸汽发生器内不会发生阻塞的清洗头。 The technical challenge is to design a cleaning head inside the steam generator suitable for use inside a narrow range, the design can be thoroughly cleaned pipes conveying have enough water pressure to clean the head, as well as the design of the steam generator cleaning head inside blocking does not occur.

在此,“上部管束”是指那些在蒸汽发生器内位于第一层管支承板14上方的管子。 Here, "upper bundle" refers to those tubes within the steam generator tube support plate located between the first layer 14 above. 本发明的蒸汽发生器上部管束的清洗设备包括四个主要装置或部件:(a)图2所示的清洗头展开和支承装置;(b)可固定在支承/展开装置上的主体清洗头,如图3-7所示,它从流槽处将清洗流体喷入管间,并且包括改变喷射的俯仰角和清洗位于同一层上的相邻流槽附近的管子的装置;(c)如图7-10所示,一可固定在支承/展开装置上的刚性喷枪,该喷枪可伸入管间并从管其间喷射清洗流体,以及(d)一支承机构,该机构在喷洗期间将任一种结构的清洗头可拆卸地固定并支承在适当的位置,而且还能方便地防止可能严重影响清洗过程并导致停机的设备阻塞。 The upper portion of the steam generator tube bundle of the present invention, the cleaning device comprises four main components or devices: cleaning head 2 as shown in (a) and FIG expand supporting means; (b) may be fixed to the support / apparatus body to start cleaning head, shown in Figure 3-7, it flows from the tank at the wash fluid injected into the intermediate tube and including changing the pitch angle of ejection and cleaning in the same vicinity of the adjacent flow channel layer on the tube means; (c) in Fig. 7 -10, the pair may be fixed to the support / expansion means on the rigid lance, the lance may extend into the tube and between the tube during the ejection from the cleaning fluid, and (d) a support mechanism which during the spray will either Cleaning head species structure removably secured and supported in place, but also easy to prevent the cleaning process and may lead to serious impact on equipment downtime blocked. 下面将依次讨论每一个装置。 Will be discussed in turn below each unit.

展开/支承装置图2所示的展开装置50包括平移轨道52,轨道支座54,旋转架56,平移架58和包括液压缸62、64、66的垂直定位装置60。 Deployment arrangement / support means 50 shown in Figure 2 includes translation rail 52, rail bearings 54, rotating frame 56, and a pan frame 58 comprises a hydraulic cylinder 62, 64 of the vertical positioning means 60. 展开装置50是用于在蒸汽发生器内将喷洗头垂直升至要到达的管支承板的高度的机构。 Deploying device 50 is used in the steam generator to spray shampoo height mechanism vertical raised to reach the tube support plate. 垂直定位装置60安装在旋转架56的顶部,而旋转架本身又安装在平移架58上。 Vertical positioning means 60 mounted on the top of the rotating frame 56, and the rotating frame itself is mounted on the pan frame 58. 采用位于蒸汽发生器外部的驱动装置,可使平移架将穿过手孔伸展的轨道52上的排放通道降下。 Using driving means is located outside of the steam generator, can be passed through the discharge passage translational frame extending hand hole 52 on the lower track.

本设计是根据从纽约市威廉姆逊区旁得路6546号R.Brook协会获得的现有的所谓“二次检查装置(SID)”设计修改而成的(详见美国专利US5,265,129),并且该设计是一个九级气缸,目前正用于沿蒸汽发生器的排放通道向上运送摄相机。 The design is derived from the existing so-called New York City area next Williamson Road 6546 R.Brook association was based on the "secondary inspection device (SID)" design changes made (see US patent US5,265,129), and the design is a nine cylinder discharge channel is currently being used to transport along the steam generator camera upward. 因此,其尺寸要适于穿过蒸汽发生器的手孔和流槽。 Therefore, its size must fit through the hole of the steam generator and hand launder. 不过,在其常规结构中,二次检查装置有几个主要的缺点。 However, in the conventional structure thereof, the secondary inspection device has several major drawbacks. 首先,缺少控制。 First, the lack of control. 现行的控制程序是增加气缸的压力以伸出,而降低压力,从而使其缩回或暂停伸出。 The current control procedure is to increase cylinder pressure to extend, and lowering the pressure, so that it is retracted or extended pause. 由于级间密封使得有可能有明显的泄漏,通常难以达到一个稳定的位置。 Because interstage seal makes it possible to have a significant leak, it is often difficult to reach a stable position. 另外,由于级间摩擦在确定一平衡位置时起着重要的作用,改变级间摩擦的任何情况,例如振动,将导致设备试图达到一个新的平衡位置。 Further, since interstage friction plays an important role in determining a position of equilibrium, the change in any case interstage friction, such as vibration, will cause the device to attempt to reach a new equilibrium position.

另一主要缺点是有效负载的能力不足。 Another major drawback is the lack of ability of the payload. 由于级间密封泄漏和穿过压力调节器和供气软管的通道很小,气缸的实际压力决不可能与供气压力接近,并且使有效载荷限于约5磅。 Since the interstage seal leakage and passes through the pressure regulator and supply hose channel is small, the actual cylinder pressure can never be closer to the supply pressure, and the payload is limited to about 5 pounds. 因此,必须将该有效载荷能力提高5-10倍,以便支承本发明的清洗头。 Therefore, we must increase the payload capacity of 5-10 times, so as to support the cleaning head of the invention. 进行的一项改进是加入缸内的钢丝绳和一钢丝绳卷筒,以控制放松和张紧。 One improvement is the addition of the cylinder make rope and a rope reel to control the relaxation and tension. 将缸内的压力维持在一个恒定值,该压力值高到足以使气缸伸长但却由钢丝绳阻止。 The pressure in the cylinder is maintained at a constant value, the pressure is high enough to prevent the cylinder but by the rope elongation. 放松张紧的钢丝绳允许伸出,而拉紧钢丝绳则使其回缩。 Relaxing the tension of the rope allows projecting, and the tensioning rope is so retracted. 在回缩步骤中要提供气缸卸压。 Retraction step in to provide relief cylinder. 钢丝绳卷筒配有一编码器,以便提供垂直位置的信息。 Rope reel equipped with an encoder to provide information on the vertical position. 为了增加有效负载,一是增加缸内压力,二是减小气缸重量,或者二者兼之。 In order to increase the payload, first increase cylinder pressure, the second is to reduce the weight of the cylinder, or both and the. 改善级间密封,可大大减小泄漏,并且用水而不是空气来进行加压。 Improve inter-stage seal, the leakage can be greatly reduced, and washed with water instead of air to carry out pressurization. 用水作为加压介质时,内部压力可达到每平方英寸数百磅而不会产生在采用可压缩介质时可能出现的爆炸性。 When using water as the pressurizing medium, the internal pressure can reach hundreds of pounds per square inch without explosive may occur when using a compressible medium. 另外,用铝而不是用钢制造缸体可使缸体本身的重量减少约2/3。 Further, aluminum instead of steel weight of the cylinder block itself can be reduced by about 2/3. 控制系统将参照图14进一步讨论。 Control system 14 will be further discussed with reference to FIG.

主体清洗头装置如图3所示的主体清洗头装置70安装在图2所示展开/支承装置50的顶部液压缸66上,并包括从枢轴支承74伸出的臂72。 Main cleaning head device body shown in Figure 3 the cleaning device 70 is mounted on the head shown in FIG Expand / 2 at the top of the support means 50 of the hydraulic cylinder 66, and includes a support 74 extending from the pivot arm 72. 图3所示本发明的主体清洗头装置将清洗流体从流槽射到管子中间。 Main cleaning head device shown in FIG. 3 of the present invention, the cleaning fluid onto the intermediate tube from the launder. 如图4所示,主体清洗头装置70沿流槽,如流槽71,延伸,并将流体从流槽71喷到管78、80之间。 4, the body 70 along the cleaning head device as shown in the flow cell, such as flow grooves 71, extending between the tubes 78, 80 and fluid flow from the tank 71 to the jet. 如图3所示,臂72也可沿箭头82所示的方向旋转,以改变相对的喷咀84、86、88和90的俯仰角取向,以便清洗两个管支承板之间的管段和支承板的表面。 3, the direction indicated by the arm 72 may be as shown in the direction of arrow 82 of the rotation to change the relative orientation of nozzles 84,86, 88 and 90 of the pitch angle, so that the cleaning pipe sections and the support between two tube support plates surface of the plate. 如图所示的喷咀84,88与喷嘴86,90相对地配置,以便清洗流槽71两侧的管子并平衡因喷咀喷出的高压水而由臂72所承受的侧向力。 The nozzles 84, 88 shown in FIG. 86, 90 disposed opposite to the nozzle, to clean the flow tube and balance on both sides of the groove 71 due to the high-pressure water jet ejected by the arm 72 to withstand lateral forces. 喷咀86和90要适当地分开,以与图4中所示的管78,80的管间间隙对准。 Nozzles 86 and 90 to be properly separated, between the tube 78, 80 with the tube shown in Figure 4 gap alignment.

臂72还可以转到用虚线表示的标号92的位置,以便清洗靠近一相邻流槽的管子而不必缩回清洗头并将清洗头穿过相邻流槽伸出。 Arm 72 may also go to the location indicated by broken lines of numeral 92, for cleaning the tubes near an adjacent flow slot without having to retract the cleaning head and the cleaning head extends through the adjacent flow slot.

更具体地说,如图5A-5C所示,在图5A中,臂100首先在流槽104(通常是蒸汽发生器每侧有三个流槽时的中间流槽)的范围内定向,以便向流槽104附近的区段110内喷水;然后如图5B所示将该臂在流槽104内移动,以便向区段108喷水,最后,如图5C所示,使臂转动,以清洗流槽106附近的区段112。 More specifically, as shown in FIG. 5A-5C, in FIG. 5A, the first arm 100 in the flow cell 104 (on each side of the steam generator usually tundish when three streams slots) within the range of orientation, so as to section 110 within the flow cell 104 near water; then, as shown in Figure 5B the arm moves in the flow channel 104 for water to section 108, and finally, as shown in Figure 5C, the arm is rotated, to clean 106 near the chute section 112.

这样,当清洗头的展开和支承装置穿过一系列垂直对准的流槽延伸时便将蒸汽发生器的整个一侧清洗干净。 Thus, when deployed the cleaning head and the support means through a series of vertically aligned flow slots extend put the entire clean side of the steam generator. 因此,主体清洗头装置可升至图1中所示的顶部支承板26上的顶部流槽25,并按图5A-5C所示完成清洗工作(在需要时可改变俯仰角),并且在蒸汽发生器的各层重复上述过程,从上至下地进行清洗直至第一层管支承板14,由此在清洗过程中向下冲刷沉积物。 Therefore, the main cleaning head device can be increased up view of the top of the support plate 26 on the top of the flow cell 25 shown in Figure 1, as shown in Figures 5A-5C and press the cleaning work is completed (when required to change the pitch angle), and the steam Repeat the above procedure generator layers, from top to bottom to be cleaned until the first layer tube support plate 14, thereby flushing deposits downward during the cleaning process. 蒸汽发生器的另一侧也按同样方式进行清洗。 The other side of the steam generator is also cleaned in the same way.

本发明的另一方面涉及在主体清洗时采用特定的喷嘴对准方式,以便以最少量的水达到最佳的清洗效果。 Another aspect of the present invention relates to the use of the main body washing nozzle is aligned in a specific manner, so as to be a minimum amount of water to achieve the best cleaning results. 具体而言,使喷咀84,88等首先在管隙79的一侧对准,然后在管隙79的另一侧对准,以便先清洗一侧的管子,然后再清洗另一侧的管子。 Specifically, the nozzle 84, 88, etc. in the first tube side of the gap 79 is aligned, and then on the other side of the tube gap 79 is aligned to the side of the cleaning of the tubes, and then cleaning the other side of the tube . 在试验中,该步骤对清洗效率有重大影响,而且有助于增加从管子表面清除的泥状沉积物的量。 In the experiment, the washing step has a significant impact on the efficiency, but also helps to increase the amount of sludge removed from the tube surface deposits. 另一些实验参数包括泥渣的类型,喷咀压力,喷咀流量,倾斜速度,主体清洗头的位置,喷咀的结构和喷咀对准方式。 Moreover, the experimental parameters including the type of sludge position, the nozzle pressure, nozzle flow rate, tilt speed, the main cleaning head, nozzle structure and nozzle aligned manner. 样机设计图证明,从排放通道引水的主体清洗头可以除去管子表面的沉积物并清洗支承板和四叶式部分。 Prototype design proved diversion from the main body of the discharge channel cleaning head can be removed and cleaned of sediment surface of the tube support plate and four-leaf parts. 本发明的这种清洗方法的再一方面还涉及当采用清洗头从顶部至底部进行清洗时,在蒸汽发生器内缓慢地降下水位。 This cleaning method is a further aspect of the present invention also relates to the use of the cleaning head when the cleaning from the top to the bottom, slowly lower water level in the steam generator. 这样,由于喷咀喷出的射流撞击蒸汽发生器内的水的表面,从而提供了额外的搅动,并增强了清洗效果。 Thus, since the jet nozzle impingement surface water within the steam generator, thus providing additional agitation, and enhanced cleaning effect.

图6示意地示出了主体清洗头装置120的样机构造。 Figure 6 schematically shows the prototype structure of the main cleaning head device 120. 喷咀臂121包括管体部分122。 Nozzle arm 121 comprises a tubular body portion 122. 其上设有相对的喷咀123,125,127,129,这些喷咀的俯仰角由偏转齿轮124进行控制,该齿轮通过齿轮装置131由倾动电动机128驱动。 Which is provided opposite the nozzle 123,125,127,129, the pitch angle of the nozzles 124 is controlled by the deflection gear, the movable gear 131 through a gear means driven by the tilt motor 128. 臂121的摆动借助于摆动齿轮138来完成,该齿轮由摆动电动机130通过蜗轮装置133驱动。 Swinging the swing arm 121 by means of gear 138 is completed, the gear 130 by the swing motor 133 through a worm gear drive. 水是由临时管道及电缆源132经水的总管134供给喷咀123,125,127和129的。 Water is the source of 132 temporary pipelines and cables through the water mains supply nozzle 123,125,127 134 and 129. 摄相机126适于为操作人员提供定位和检查方面的信息。 Camera 126 is adapted to provide information on locating and checking for the operator. 摄相机126、电动机130和128的电力由临时管道及电缆源132提供。 Camera 126, 130 and 128 of the motor power is provided by a source 132 temporary pipelines and cables.

刚性喷枪如图7A所示,刚性喷枪200是可安装在图2所示展开装置50上的另一类喷洗头,并且用于将清洗流体从管其间喷入两排管间。 Another type of rigid lance shown in Figure 7A, the rigid lance 200 is mounted on the deployment apparatus 50 shown in FIG. 2 spray shampoo, and for the wash fluid from the tube therebetween injected between two rows of tubes. 图7A中的喷杆部分205如图7B和7C所示那样旋转到图8A所示的在两排管子207之间延伸的位置。 FIG. 7A and the boom portion 205 7B is rotated to the position as shown in FIG. 8A extending between two rows of tubes 207 as shown in FIG 7C. 这样,图7A的喷杆205的位置在穿过图8B所示的流槽210伸出期间与支承装置的上部液压缸一致,然后在此处,由喷杆驱动电动机212使喷杆沿箭头214所示方向旋转,并使之伸入特定的一排管子之间。 Launder Thus, the position of Figure 7A passing through the spray bar 205 shown in FIG. 8B projecting upper portion of the hydraulic cylinder 210 is consistent with the support means during, and here, the boom driving motor 212 so that the spray bar direction of arrow 214 direction indicated by the rotation, and make it extends between a particular row of tubes. 此后,喷咀216(图8B和8C所示)、218、220和222将来自高压水源224的清洗流体喷向管子。 Thereafter, the nozzle 216 (Fig. 8B and 8C), 218, 220 and 222 from the high-pressure water wash fluid 224 is discharged into the tube.

如图9所示,用喷洒来自流槽处的水的主体清洗头装置清洗不到的管区则采用可插入两排管子之间的喷杆205清洗。 9, by spraying water from the flow cell body at the cleaning head cleaning apparatus is used less than the district spray bar can be inserted between the two rows of tubes 205 cleaning. 在图7A中,刚性喷枪200的最上端是一个类似子弹头的构件201,它可按箭头180的方向手动地略微倾斜,以穿过流槽迂回地向上延伸,而不受流槽有微量对中误差或图2所示展开/支承装置的伸缩缸组件的挠度的影响。 In Figure 7A, the uppermost end of the rigid lance 200 is similar to a bullet head member 201, which in the direction of arrow 180 is manually slightly inclined to extend upwardly through the flow cell a roundabout way, without a trace of the gutter Figure expanded error or affect telescopic cylinder assembly / 2 support means deflection. 子弹头201利用抵靠一偏置弹簧作用的一钢缆系链进行偏转。 Bullet 201 against the use of a spring biasing effect of a cable tether deflection. 通过用旋转架使清洗头绕其垂直轴线旋转,可使子弹头按任意方向定向。 By the cleaning head rotating frame around its vertical axis of rotation, can the bullet in any direction orientation. 由于刚性喷枪清洗头将要运行到必须从其中获得大量传感数据的区域内,所以清洗头必须配备若干个视镜182、184,以保持操作人员及时掌握喷头所在位置及检查和清洗工作的状况。 Because of the rigidity of gun cleaning head will be running to be obtained from a large number of the region within which the sensor data, so the cleaning head must be equipped with a number of endoscopic 182,184 to keep the operator to grasp the nozzle location and condition inspection and cleaning work.

当清洗头运行到所考虑的加热管隔板的支承板时,为了使操作人员能将子弹头201对准下一个流槽,在清洗头内安装一CCD摄像机并朝向上方,如图所示的摄像机184。 When the cleaning head moves to the considered heating tube sheet support plate, in order that the operator can align the next bullet gutter 201, a CCD camera installed in the cleaning head and upward, as shown 184 cameras. 如果合适的话,可以在清洗头内沿水平方向相对地安装两台摄像机,以便能向下观察无管的通道和与其相邻的管子。 If appropriate, two video cameras may be mounted relative to the cleaning head in the horizontal direction, in order to observe the channel and the ductless downwardly adjacent tubes. 为了提供观察管间通道的能力,可如图7D所示在喷枪尖209上安装视频探头。 In order to provide the ability to observe the passage between the tube can be installed as shown in Figure 7D video probe tip 209 on the gun. CCD芯片的定位应能对缝隙区进行检验并观察喷水操作的情况。 Positioning the CCD chip should be able to test and observe the gap zone sprinkler operating conditions. 这些视频探头的电缆通过位于排放管道的平移架上的旋转架并穿出手孔。 These video probe cable through the discharge pipe located rotating frame pan rack and shot through the hole. 为了简化用户接口,可以将信号放大输送至一个可显示所选择的视频图像的遥控站。 In order to simplify the user interface, can be fed to a signal amplifier to display the selected video images remote station. 如图7C所示,如果在加热管隔板的支承板上不允许使管间通道的有效区域稍有减少,由如图所示的偏置在清洗头上形成的凹槽211可用于安装图7B所示的一个任选的成套模件213,以便适于下述用途。 7C, if the heating tube sheet support plate between the tube does not permit passage of the effective area is slightly reduced, the groove 211 by the bias as shown in the cleaning head is formed for installing the FIG. A complete set of optional modules 213 7B shown so suitable for the following purposes. 例如,可以将一样品存放室装在此处,从而使管垢能可靠地运出蒸汽发生器,以供分析。 For example, a sample storage chamber can be installed here, so that tube scale could be reliably transported out of the steam generator for analysis.

总之,本发明的管间喷枪可进行直观的检查,清洗缝隙,去除管垢,冲洗加热管隔板的支承板,腐蚀取样,异物的搜寻和收取。 In short, the tube between the gun of the invention may be visual inspection, cleaning slits, pipe scale removed, rinsed heating tubesheet support plate, corrosion sampling, search and collection of foreign matter. 喷杆205必须尽可能的长,但不能超过加热管隔板支承板间的垂直间距,否则它不能从垂直方向旋转。 Lance 205 must be as long as possible, but can not exceed the vertical spacing between the heating tube support plate baffle, otherwise it can not be rotated from the vertical. 由于W44型和W51型这两种蒸汽发生器的加热管隔板支承板的半径均大于加热管隔板支承板的垂直间距,所以有一个图9所示的区域范围,在这里,刚性喷枪不可能达到与无管通道相距最远的点。 Since the radius of the W44 and W51 type two type steam generator heating tubesheet support plate are greater than the vertical spacing of the heating tube sheet support plate, so there is a region of the range shown in Figure 9, where the gun is not rigid may be achieved with no passageway farthest point. 但是,刚性喷枪所及范围内的总百分比,对于W44型来说,估计超过85%,对W51型而言估计超过80%。 However, the total percentage of the reach of the rigid lance, for W44 type, it is estimated that more than 85%, in terms of type of W51 estimated that more than 80%.

如图7A-7C所示的刚性喷枪200是一根管径为21/2″的细长的壳体,其内装有一旋转驱动装置(图中未示出)以控制1/4″的刚性臂205的位置。 FIG. 7A-7C rigid lance 200 is shown in a pipe diameter 21/2 "of the elongated housing inside of which a rotary drive means (not shown) to control the 1/4" rigid arm 205 position. 由于没有可靠的装置使碎屑从管支承板的周边移走,在喷枪顶端的水流的取向应使得碎屑返回无管通道中的流槽。 Since there is no reliable means to make the removal of debris from the periphery of the tube support plate, the flow orientation such that the lance tip of the ductless debris return flow passage groove.

图10A-10D示出了在展开和各种清洗操作过程中喷枪相对于清洗头的取向。 Figure 10A-10D illustrates an expanded and in a variety of cleaning during operation of the gun with respect to the orientation of the cleaning head. 图10A表示喷杆205与清洗头215对齐,以便将清洗头拉到和抬高到所考虑的加热管隔板的支承板;图10B表示喷杆205向下摆过,以向流槽217冲洗碎屑;图10C表示喷杆205前后摆动,从而对管子进行除垢;而图10D表示喷杆205处于对支承板219的下侧进行检验的位置。 10A shows the spray bar 205 and 215 are aligned cleaning head to pull the cleaning head and elevation to the considered heating tube support plate separator; 10B shows the spray bar 205 over the hem, to flush the pieces to launder 217 crumbs; 10C shows the boom 205 swings back and forth, whereby the pipe by descaling; and Figure 10D shows the boom 205 is on the lower support plate 219 of the inspection location.

支承机构虽然垂直的展开和支承装置将横向支承在加热管隔板的底部上,但是也需要在紧靠已展开的喷头的顶部设有横向支承。 While the support mechanism to expand and support means perpendicular to lateral support on the bottom of the heating tube sheet, but also expanded at the top of the nozzle close to a lateral support is provided. 在清洗蒸汽发生器的上部管段时,垂直的展开和支承装置将升长到25英尺。 When cleaning the upper tube section of the steam generator, the vertical deployment and support means to grow up to 25 feet. 在将喷枪插入管束和从管束中缩回以及用射流冲洗的过程中,将承受侧向载荷。 In the lance insertion and retraction from the tube bundle in the bundle and with the jet washing process, will be subjected to lateral loads. 本发明的上部横向支承装置如图11所示,并设有与例如管支承板250的管支承板接合或脱开的机构,而且不要求有附加的致动器。 An upper transverse support apparatus of the present invention is shown in Figure 11, and is provided with means such as tube support plate 250 of the tube support plate engaged and disengaged, and does not require additional actuator.

如图12A所示,当接近所考虑的管支承板250时,略微向上升起有效载荷252(上述喷洗头之一),以便使指状物254和256如图12B所示那样打开。 12A, when the tube support plate 250 near the considered slightly lifted and the payload 252 (one spray shampoo above), so that the fingers 254 and 256 is opened as shown in Figure 12B. 磁铁258和260有助于转换到图12B所示的位置。 Magnets 258 and 260 will help to convert to the position shown in FIG. 12B. 当指状物254和256处于打开位置时,垂直的展开装置进一步上升,使指状物旋转到图12C所示的锁紧位置。 When the fingers 254 and 256 in the open position, the vertical expansion means further rise, so that the finger is rotated to the locked position shown in FIG. 12C. 然后,在横向支承装置锁定并且下部的多级缸固定时,利用图2所示展开装置的最上面的液压缸的垂直移动进行清洗操作。 Then, the lateral support means and a multi-stage locking cylinder fixed at the lower portion, shown in Figure 2 to expand the use of vertical movement of the uppermost hydraulic cylinder apparatus for cleaning operation. 按反向进行上述程序可实现脱开。 Press reverse the above procedure can be achieved disengaged. 在使下部的液压缸缩回时,将横向支承装置的轴销262向下拉;并且随下部液压缸的缩回,在压靠着流槽的垫板上产生的摩擦力会使指状物组件旋转到图12B所示的位置。 In the lower hydraulic cylinder is retracted, the pivot pin 262 transverse to the drop-down support means; and retracted with the lower portion of the hydraulic cylinder, the pressure pad against the flow slot cause the finger to generate frictional force component 12B is rotated to the position shown in FIG. 然后,使独立的顶部液压缸缩回,从而使指状物折叠至图12A所示的堆置位置并允许穿过流槽到一个新的展开位置。 Then, independent of the top cylinder is retracted so that the fingers being folded to the position shown in FIG. 12A piled and allowed to pass through the flow cell to a new deployment location.

收回关系到将任一种装置伸入蒸汽发生器的内部区。 Related to the recovery of any one of a steam generator device extends into the interior region. 按照本发明的紧急收回是靠张紧与第二级液压缸固定的液压缸伸出控制钢绳进行的。 According to the present invention is to recover the emergency tensioning by the second stage cylinder fixed cylinder control wire extending performed. 如果指状物处于如图12A所示的堆置位置,当开始紧急收回时,则不会出现干扰。 If the finger is in the stacking position shown in Figure 12A, when starting an emergency recovery, the interference will not occur. 如果指状物处于12B所示的待清洗位置,指状物沿路径向下与各个管支承板的接触则只不过使其向内旋转到足以穿过流槽的状态。 If the finger is in the position shown to be cleaned 12B, fingers downwardly along the path in contact with the respective tube support plate is just enough to make it rotate inwardly through the flow cell state. 如果横向支承装置如图12C所示的处于接合状态,当开始紧急收回时,将对缆绳作用以足够的张紧力,以克服横向支承装置与管支承板接触时产生的摩擦力。 If the lateral support means is in the engaged state shown in FIG. 12C, when starting the emergency recovery, will effect a sufficient cable tension to overcome the friction and lateral support means generated when the tube support plate in contact. 如果有效载荷完全向下并作用在指状物上,在缩回期间与下一个相邻支承板的接触则使指状物向内旋转并将有效载荷传送到图12A所示的堆叠构形上。 If the payload is completely down and act on the fingers, the contact during the retraction of the support plate adjacent to the next so that the fingers and rotated inward, the payload is transferred to the stack as shown in Figure 12A on the configuration .

其它辅助装置图13所示为操作辅助系统300,它向各喷洗头的喷咀提供高压水,向垂直展开装置的缸提供低压水,根据需要提供水和动力以及从清洗装置反馈的视频信息。 Other auxiliary device Figure 13 shows the operation of the auxiliary system 300, which each provide a high pressure spray nozzle shampoo water, to provide vertical expansion means of low-pressure water tank, and power needed to provide water from the cleaning means and the feedback video information . 此操作辅助系统300还可在蒸汽发生器中提供负压,以在喷洗过程中保持喷枪处于稳定的高度,并且它还将过滤足够的供清洗头的喷水喷咀用的循环水。 This auxiliary system 300 may also provide a negative pressure in the steam generator, to maintain the gun in the spray process in a high degree of stability, and it is also sufficient for the filter cleaning head spray nozzles with circulating water. 主要的操作系统装置设在位于受污染的车间外部的拖车302中,并与目前用于加热管隔板的泥浆状沉积物喷洗的装置非常类似。 The main operating system means provided external to the workshop contaminated trailer 302, and the current for heating the tubesheet muddy sediments spray apparatus very similar. 高压水经高压泵304供给各清洗头的喷咀,低压水经低压泵306供给展开/支承装置的液压缸,而空气、电力和视频信号则分别经管线308、310和312传输。 High-pressure pump 304 via high-pressure water supplied to each nozzle cleaning head, low pressure water is supplied by a low pressure pump 306 to expand / cylinder support means and the air, power and video signals, respectively, via lines 308, 310 and 312 transmission. 真空泵314在喷洗期间保持喷洗装置处于一个稳定的高度,而过滤机316和318过滤来自真空泵314的水,所过滤的水量足以经高压泵304循环给喷水喷咀。 During the spray pump 314 to keep the spray device is a highly stable, and filter 316 and 318 filter from the water pump 314, the filtered water is sufficient to cycle through the high-pressure pump 304 to the spray nozzle.

图14所示的控制子系统340所提供的控制装置用于控制操作系统的所有功能以及垂直的展开/支承装置和在管间出入的刚性喷枪装置的功能。 All the features of the control subsystem shown in Fig. 14 provided by the control device 340 for controlling the operating system and the function of the vertical Expand / support means and between the rigid tube and out of the spray gun apparatus. 所有主要装置的活动均根据从编码器反馈的位置信息进行闭环控制。 All major activities are closed-loop control apparatus according to the position information from the encoder feedback. 如图所示的计算机接口342提供了控制以及位置和功能信息。 Computer interface shown in Figure 342 provides control information and the location and function. 相对运动,例如按箭头344所示在管隙间进行的喷扫,清洗头按箭头346所示的旋转,按箭头348所示升降展开/支承装置的液压缸和按箭头350所示横移展开装置以根据图5A-5C所示的方法进行清洗,均是按程序自动进行的。 Relative motion, such as shown by the arrows in the bounds of the blast tube 344 by rotating cleaning head of arrow 346, as shown by the arrow 348 to start the lift cylinder / support device and shown by arrow 350 to start sliding apparatus for cleaning according to the method shown in Fig. 5A-5C, are automatically carried out according to the procedure. 控制台还包括一用于视频系统的监视器。 The console also includes a monitor for the video system. 管间出入装置必须能进入0.406″的间隙并采用一种Welch Allyn视频探头,按照直径为0.25″的规格定作。 Between the tube and out devices must be able to enter 0.406 "gap and using a Welch Allyn video probe, according to the diameter of 0.25" for the specifications given.

虽然在某些图中只示出了本发明的一些具体特征,但这仅仅是在某些特征与按照本发明的其它特征中的任一特征或所有特征相结合时,为了方便起见才如此表示的。 While in some figure shows only some of the specific features of the invention, but only when the combination of certain features with other features in accordance with the present invention, any one or all of the features characteristic, for convenience only and thus represents a.

对于本领域中的技术人员来说,在不超越下述权利要求的范围的前提下,还可以设想出其它的实施例。 For those skilled in the art, in without exceed the scope of the following claims, can also be envisaged other embodiments.

权利要求书按照条约第19条的修改申请人提交权利要求的修改替换页1-34项(共5页)及说明书摘要的修改替换页。 Claims under Article 19 of the modification of the claims submitted by the applicant to modify the replacement item page 1-34 (of five) and abstracts modify replace pages. 说明书的摘要的内容并没有被改动,只是由于申请人所做的其它一些修改而更改了页码。 A summary of the contents of the manual has not been changed, but because the applicant did some other modifications and changes to the page.

在修改后的权利要求1中并入了原始递交的权利要求2的内容,在修改后的权利要求14中加入了原始递交的权利要求15和16的内容,而在新的权利要求22中加入了原权利要求23的内容。 1, incorporating the rights of the original request submitted content 2, right after modifying the requirements added to the right of the original 14 demands submitted content 15 and 16 right after modifying the requirements, and 22 new claims added The contents of the original claim 23. 因此,由于删除了原权利要求2,15,16和23,现在的权利要求2,15,16和23分别是原权利要求3,16,17和24,并且已经相应地修改了原来从属于这些现在已删除了的权利要求的各权利要求。 Thus, due to the removal of the original claims 2,15,16 and 23, as claimed in claim 2,15,16 and 23 now are the original claims 3,16,17 and 24, and has accordingly modified the original subordinate to these Each claim is now removed Claim requirements.

增加了新的权利要求24-26,以进一步地限定本发明。 Adds new claims 24-26, in order to further define the present invention. 新的权利要求27是原始递交的权利要求1与权利要求5和6的合并。 New claim 27 is combined with 1 5 and 6 on claim original application requirements. 新的权利要求28与递交时的原权利要求27相类似。 New claims 28 to submit the original claim 27 when similar requirements. 新的权利要求29是原始递交的权利要求1中的结构与原权利要求12中的结构的合并。 New claim 29 is combined 12 structure a structure in the original on claim original application requirements. 新的权利要求30与原权利要求13相似。 New claim 30 with claim 13 is similar to the original claim. 新的权利要求31是原始递交的权利要求14与原权利要求21的限定部分的结合。 New claims 31 combine to define a portion 21 of the original 14 on claim original application requirements. 新的权利要求32是在原权利要求22的内容中加入了由原权利要求26限定的方法。 New claim 32 is in the content of the original claim 22 is added to the former method as defined in claim 26 requirements. 新的权利要求33是在原始递交的权利要求22中加入了由原权利要求27限定的方法。 New claim 33 is in the rights of the original submitted claim 22 is added to the former method as defined in claim 27 requirements. 新的权利要求34是在由原始递交的权利要求1限定的结构中加入了用于在清洗过程中围绕蒸汽发生器的上部管束将清洗头装置对齐的装置。 New claim 34 is defined in a structure according to the requirements by the original application of the means for adding about the upper portion of the steam generator tube bundle during the cleaning process the cleaning head device aligned. 与权利要求31不同,权利要求34不需要围绕上部管支撑板支撑清洗头装置,这是因为申请人已发现,在蒸汽发生器的上部管束中,清洗头也可以相对于管子自身对齐或受到支撑,而不仅是由管支撑板支撑或对齐。 Different with claim 31, 34 do not need to surround the upper portion of the tube support plate supporting the cleaning head device as claimed in claim because the applicant has found that, in the upper part of the tube bundle of the steam generator, the cleaning head may be aligned with respect to the tube itself or by the support and not only supported by the tube support plate or aligned.

因此,申请人递交了这些在作为同族专利的美国申请案中已做出的修改,它们没有超出在1995年1月6日递交的国际申请中所公开的范围。 Therefore, the applicant submitted a proposal to apply these changes in the United States as of the same patent family that have been made, they are not beyond the scope of the international application January 6, 1995 filed disclosed.

权利要求书按照条约第19条的修改1.一种蒸汽发生器的上部管束的清洗设备,包括:一清洗头装置的展开和支承装置,它可进入蒸汽发生器的内部,并设有围绕蒸汽发生器的上部管束提升和定位清洗头装置的装置,上述的清洗头装置的展开和支承装置包括一个平移轨道,该平移轨道沿排放通道在上述蒸汽发生器的一个手孔与一个中心拉杆之间延伸;以及与上述支承装置相固定的清洗头装置,上述清洗头装置包括用于围绕蒸汽发生器上部管束的管子喷射清洗流体的装置,用以从上向下地清洗该蒸汽发生器,由此在清洗过程中向下冲刷沉积物。 A cleaning head unit deployment and support device, which can enter the interior of the steam generator, and a steam around: 1. An upper part of the steam generator tube bundle cleaning equipment in accordance with Article 19 of the Treaty changes, including claims the upper part of the generator tube bundle cleaning head lifting and positioning device system, expand and support means said cleaning head unit includes a translation between the tracks, the translation of a hand rail along the discharge passage hole in said steam generator with a central rod extends; and a support means fixed to said cleaning head means, said head means comprises means for cleaning the tube around the upper portion of the steam generator tube bundle cleaning fluid jetting means for cleaning the downwardly from the steam generator, whereby scour sediment down the cleaning process.

2.如权利要求1所述的设备,其特征在于:上述的展开和支承装置还包括一个旋转架,该旋转架设有数个可绕枢轴转动地安装在上述平移轨道上的可垂直伸缩的液压缸。 2. The apparatus according to claim 1, wherein: said deployment and support means further comprises a rotating frame, the rotation erected several pivotally mounted on the translation rail vertically retractable hydraulic cylinder.

3.如权利要求1所述的设备,其特征在于:上述的清洗头装置包括用于将清洗流体从一流槽处喷向管子之间的装置。 3. The apparatus according to claim, characterized in that: said head means includes means for cleaning the cleaning fluid sprayed from the device between the tubes excellent grip.

4.如权利要求3所述的设备,其特征在于:用于将清洗流体从一流槽喷向管子中间的所述装置包括一个可沿流槽方向伸长的臂,上述臂有多个可与管间间隙对准的喷咀。 4. The apparatus according to claim 3, wherein: said means for the wash fluid ejected from the leading groove of the intermediate pipe includes a slot elongated along the flow direction of the arm, and the arm has a plurality of the gap between the tube nozzle alignment.

5.如权利要求4所述的设备,其特征在于:上述的多个喷咀彼此相对地配置,以便同时清洗流槽两侧的管子并平衡由所述臂所承受的任何侧向力。 5. The apparatus according to claim 4, wherein: said plurality of nozzles are disposed opposite to each other, so as to simultaneously clean both sides of the tube and the flow cell by the balance arm is subjected to any lateral forces.

6.如权利要求4所述的设备,其特征在于:还包括用于改变上述喷咀的俯仰角取向的装置。 6. The apparatus according to claim 4, characterized in that: further comprising means for changing the pitch angle of the orientation of said nozzle.

7.如权利要求4所述的设备,其特征在于:还包括用于旋转上述臂,以便围绕紧靠一相邻流槽的管子喷射清洗流体的装置。 7. The apparatus according to claim 4, characterized in that: further comprising means for rotating said arm, so as to surround the tube abuts an adjacent flow slot jet cleaning fluid.

8.如权利要求3所述的设备,其特征在于:上述的清洗头装置包括用于从管子中间向管间喷射清洗流体的装置。 3 8. The apparatus according to claim, characterized in that: said head means includes a cleaning means for the wash fluid from the intermediate tube between the tube to the injection.

9.如权利要求8所述的设备,其特征在于:上述的用于从管子中间喷射清洗流体的装置包括一根可伸入管间的喷枪,上述喷枪有若干个喷咀,以便围绕管子从管子其间喷射清洗流体。 9. The apparatus according to claim 8, wherein: said means for the cleaning fluid comprises a tube can be inserted into the gun between the gun has a plurality of injection nozzles from the middle of the tube, so as to surround the tube from During the cleaning fluid injection tube.

10.如权利要求9所述的设备,其特征在于:上述喷枪可从围绕上述支承装置的位置转至一个位于管间的位置。 10. The apparatus according to claim 9, wherein: said spray gun can be transferred from a position about said support means is located at a position between the tubes.

11.如权利要求1所述的设备,其特征在于:还包括用于围绕一个流槽可拆卸地支承上述清洗头装置的装置。 11. The apparatus according to claim 1, characterized in further comprising: a flow cell for surrounding detachably supporting said cleaning head means.

12.如权利要求11所述的设备,其特征在于:上述的可拆卸支承装置包括可转动的指状物,它们可与加热管隔板的支承板上的流槽侧壁接合。 12. The apparatus of claim 11, wherein: said removable support means comprises a rotatable fingers, they may be engaged with the heating tube sheet support plate of the flow cell sidewall.

13.一种核电站的蒸汽发生器上部管束的清洗设备,用于从上向下地清洗该蒸汽发生器,由此在清洗期间向下冲刷沉积物,该设备包括:一个清洗头展开和支承装置,该装置包括用于将清洗头定位在位于蒸汽发生器上部管束附近的一个流槽处的装置;一个可与上述支承装置相固定的主体清洗头,该清洗头有一个可沿流槽方向伸长的臂,以便将清洗流体从流槽喷向管间,上述臂有多个可与紧靠流槽的管间间隙对准的喷咀,上述喷咀彼此相对地配置,以便同时清洗流槽两侧的管子并平衡由所述臂所承受的任何侧向力;以及一可与上述支承装置固定的清洗头喷枪,它设有用于从管子中间向管间喷射清洗流体的装置。 13. A nuclear power plant steam generator tube bundle of the upper portion of the cleaning equipment for cleaning the downwardly from the steam generator, thereby flushing deposits downward during the cleaning, the apparatus comprising: a cleaning head to expand and support means, The apparatus includes means for positioning a cleaning head at the upper portion of the steam generator tube bundle is located in a flow cell means at a nearby; a support means relative to said stationary body cleaning head, the cleaning head has an elongated groove along the flow direction arm, so that the wash fluid ejected from the flow channel between the tubes, a plurality of the arm close to the flow cell with a gap between the aligned tube nozzle, said nozzle is arranged opposite to each other, so as to simultaneously clean both launder the tube side is balanced by the arm and is subjected to any lateral force; and a support means can be fixed with said cleaning head of the gun, which is provided with means for the wash fluid from the intermediate tube between the tube to the injection.

14.如权利要求13所述的设备,其特征在于:还包括用于改变上述喷咀的俯仰角取向的装置。 14. The apparatus according to claim 13, characterized in that: further comprising means for changing the pitch angle of orientation of said nozzle means.

15.如权利要求13所述的设备,其特征在于:还包括用于旋转上述臂,以便围绕紧靠一相邻流槽的管子喷射清洗流体的装置。 15. The apparatus according to claim 13, characterized in that: further comprising means for rotating said arm, so as to surround the tube abuts an adjacent flow slot jet cleaning fluid.

16.如权利要求13所述的设备,其特征在于:上述喷枪可伸至位于管间的一个位置,上述喷枪有多个喷咀,以便围绕管子从管子中间喷射清洗流体。 16. The apparatus of claim 13, wherein: said spray gun may be located at a position between the tubes extends, said lance has a plurality of nozzles, so as to surround the tube from the intermediate tube jet cleaning fluid.

17.如权利要求16所述的设备,其特征在于:上述喷枪可从一围绕用于展开喷枪的支承装置的位置旋转至一个位于管间以便清洗的位置。 17. The apparatus of claim 16, wherein: said spray gun can be used to expand from a position around the gun support device is rotated to a position between the tubes for cleaning is located.

18.如权利要求13所述的设备,其特征在于:还包括用于在蒸汽发生器的加热管隔板附近支承上述清洗头的装置。 18. The apparatus according to claim 13, characterized in that: further comprising means for heating the steam generator tube sheet for supporting the vicinity of the cleaning head.

19.一种从上向下清洗一蒸汽发生器的方法,该方法包括:穿过蒸汽发生器的一个手孔将一清洗头装置插入并将该清洗头向上升至位于蒸汽发生器上部管束的一个流槽附近的位置;围绕与上述清洗头装置紧邻的上部管束喷射清洗流体的步骤包括从位于一个流槽附近的清洗头喷洗管子;依次地下降清洗头并将其在相邻的下一层流槽附近重新定位;以及再一次围绕贴近上述清洗头装置的管束喷射清洗流体,从而在清洗期间向下冲刷沉积物。 19. A method of cleaning a steam generator from the top down method, the method comprising: a steam generator through the hand hole to a cleaning head device is inserted and the cleaning head upwardly raised to the upper portion of the steam generator tube bundle located a position close to the flow cell; and the cleaning head around the upper tube bundle device adjacent to the injection step of the cleaning fluid comprises from near a gutter cleaning head spray pipe; sequentially decreased in the cleaning head and the next adjacent repositioning near laminar flow channel; and close again around the cleaning head device bundles jet cleaning fluid, thereby flushing deposits downward during the cleaning.

20.如权利要求19所述的方法,其特征在于:围绕管束喷射清洗流体的步骤包括将清洗头定位,以便清洗上述流槽附近的管子;将上述清洗头移动到一个紧靠一相邻流槽的位置,以便清洗那个流槽附近的管子;以及将上述清洗头移动到贴近另一相邻流槽的位置,以便清洗那个相邻流槽附近的管子,由此实现整个区域的全面清洗而不必缩回清洗头装置。 20. The method of claim 19, wherein: the step around the tube bundle jetting washing fluid comprises positioning the cleaning head, for cleaning the flow channel close to the tube; said cleaning head is moved to a close to an adjacent stream slot position, for cleaning the flow cell close to the tube; and the cleaning head is moved to a position close to another adjacent flow slot for cleaning the tubes near the adjacent flow slot thereby achieving full cleaning of the entire region and having to retract the cleaning head unit.

21.如权利要求19所述的方法,其特征在于:围绕管束喷射清洗流体的步骤包括首先在管隙的一侧上喷水,然后在管隙的另一侧上喷水。 21. The method of claim 19, wherein: step of jetting washing fluid comprises a bundle on a first side of the tube gap of water, and then spray on the other side of the gap around the tube.

22.如权利要求19所述的方法,其特征在于:围绕管束喷射清洗流体的步骤包括将一清洗头插入两排管子之间。 22. The method of claim 19, wherein: the step of washing fluid jet bundle comprising a cleaning head is inserted between two rows of tubes around.

23.如权利要求19所述的方法,其特征在于:还包括向蒸汽发生器内加水,并且在降下清洗头时使其中的水位下降,这样由于喷入的清洗流体与水面冲击,将提供额外的搅动和清洗作用。 23. The method according to claim 19, characterized in that: further comprising adding water to the steam generator, and, when the cleaning head is lowered so that one of the water level drops, so that due to the injection of the cleaning fluid and the surface impact, will provide additional agitation and cleaning effect.

24.如权利要求1所述的设备,其特征在于:上述清洗头装置还包括一个可与上述支承装置相固定的清洗头喷枪,它包括用于从管子中间向管间喷射清洗流体的装置。 24. The apparatus according to claim 1, wherein: said apparatus further comprises a cleaning head with said support means fixed to the cleaning head spray gun, which comprises from the intermediate tube between the tube to means for jetting washing fluid.

25.一种蒸汽发生器上部管束的清洗设备,包括:一个清洗头展开和支承装置,它可进入蒸汽发生器的内部并设有围绕蒸汽发生器的上部管束提升和定位清洗头的装置;以及一个可与上述支承装置固定的清洗头喷枪,它包括用于从管间向管间喷射清洗流体的装置。 25. An upper portion of the steam generator tube bundle cleaning device, comprising: a cleaning head to expand and support means, it can enter the interior of the steam generator and a steam generator tube bundle around the upper lifting and positioning of the cleaning head device; and and said support means a fixed gun cleaning head, which includes cleaning fluid from between the tube between the tube to spray devices.

26.如权利要求25所述的装置,其特征在于:还包括一个可与上述支承装置相固定的主体清洗头,该清洗头包括一个可沿流槽方向伸长的臂,上述臂有多个喷咀,它们可与紧邻流槽的管子之间的间隙对准,以便将清洗流体从流槽喷入管间。 26. The apparatus according to claim 25, characterized in that: further comprising a support means with said cleaning head fixed to the main body, the cleaning head comprises an elongated groove along the flow direction of the arm, the arm has a plurality of nozzles, which can be used with a gap between adjacent gutter pipe alignment, so as to spray the cleaning fluid from the flow channel between the inlet tube.

27.一种蒸汽发生器上部管束的清洗设备,包括:一个清洗头装置的展开和支承装置,它可进入蒸汽发生器内并设有围绕蒸汽发生器的上部管束提升和定位清洗头装置的装置;以及安装在上述支承装置上的清洗头装置;上述清洗头装置包括用于围绕蒸汽发生器上部管束的管子喷射清洗流体的装置,上述的用于喷射清洗流体的装置包括一个可沿流槽方向伸长的臂,上述臂有多个喷咀,它们可与管子之间的间隙对准,上述喷咀彼此相对地配置,以便同时清洗流槽两侧的管子并平衡由所述臂承受的任何侧向力。 27. An upper portion of the steam generator tube bundle cleaning device, comprising: a cleaning head device to expand and support means, which may enter the steam generator and a steam generator tube bundle around the upper lifting and positioning of the cleaning head device means ; and a cleaning head means mounted on said support means; said first means includes means for cleaning the tube around the upper portion of the steam generator tube bundle cleaning fluid ejection means for ejecting said cleaning means comprises a fluid can flow along the groove direction an elongated arm, the arm has a plurality of nozzles, which may be aligned with the gap between the tubes, said nozzle arranged opposite to each other, so as to simultaneously clean both sides of the pipe and balance the flow cell is received by any of said arm lateral forces.

28.如权利要求27所述的设备,其特征在于:还包括用于改变上述喷咀的俯仰角取向的装置。 28. The apparatus according to claim 27, characterized in that: further comprising means for changing the pitch angle of orientation of said nozzle means.

29.一种蒸汽发生器上部管束的清洗设备,包括:一个清洗头装置的展开和支承装置,它可进入蒸汽发生器的内部并设有围绕蒸汽发生器的上部管束提升和定位一清洗头装置的装置;与上述支承装置固定的清洗头装置;上述清洗头装置包括用于围绕蒸汽发生器上部管束的管子喷射清洗流体的装置;以及用于围绕蒸汽发生器上部管束的管子可拆卸地支承上述清洗头装置的装置。 29. An upper portion of the steam generator tube bundle cleaning device, comprising: a cleaning head device to expand and support means, which can enter the interior of the steam generator and a steam generator tube bundle around the upper lifting and positioning a cleaning head means ; means fixed to said support means cleaning head means; said first means includes means for cleaning the tube around the upper portion of the steam generator tube bundle cleaning fluid ejection means; and means for the tube around the upper portion of the steam generator tube bundle detachably supporting said cleaning device head device.

30.如权利要求29所述的设备,其特征在于:上述的可拆卸支承装置包括可转动的指状物,它们可与上述管支承板上的一个流槽或相邻管子的侧壁接合。 29 30. The apparatus according to claim, characterized in that: said removable support means comprises a rotatable fingers, which can engage with said side wall of a gutter adjacent the tube support plate or tube.

3L一种核电站的蒸汽发生器上部管束的清洗设备,用于从上向下地清洗蒸汽发生器,由此在清洗过程中向下冲刷沉积物,该设备包括:一个清洗头展开和支承装置,它设有用于将清洗头定位在蒸汽发生器的上部管束附近的一个流槽中的装置;一个可与上述支承装置固定的主体清洗头,包括用于将清洗流体从流槽喷向管子之间的装置;一个可与上述支承装置固定的清洗头喷枪,包括用于从管子中间向管间喷射清洗流体的装置;用于在蒸汽发生器的管支承板周围支承上述清洗头的装置。 3L one kind of nuclear power plant steam generator tube bundle of the upper portion of the cleaning equipment for cleaning downwardly from the steam generator, thereby flushing deposits downward during the cleaning process, the apparatus comprising: a cleaning head to expand and support means, it provided with means for positioning the upper portion of the cleaning head of the steam generator tube bundle near a launder means; and a fixed body of the cleaning head support means comprising means for the cleaning fluid sprayed from the flow tube between the slots device; a fixed spray gun and the cleaning head said support means comprises a means for the wash fluid ejected from the intermediate tube between the tube; means for the steam generator around the tube support plate supporting means of the cleaning head.

32.一种从上向下清洗蒸汽发生器的方法,该方法包括:穿过蒸汽发生器的一个手孔插入一清洗头装置并将该清洗头向上升至在蒸汽发生器上部管束的一个流槽附近的位置;将一清洗头插入两排管子之间并围绕靠近该清洗头装置的上部管束喷射清洗流体;依次地降下清洗头并将其在下一个下层流槽附近重新定位;以及再一次围绕贴近清洗头装置的管束喷射清洗流体,由此在清洗过程中向下冲刷沉积物。 32. A method of cleaning a steam generator from the top down, the method comprising: a steam generator through the hand hole to insert a cleaning head means and the cleaning head was raised up in the upper portion of the steam generator tube bundle of a stream trough nearby location; a cleaning head will be inserted between the two rows of tubes and around the upper part of the cleaning head device near bundle jet cleaning fluid; cleaning successively lowered head and reposition it in the next lower layer flow near the tank; and again around close to the head tube bundle cleaning device sprays a cleaning fluid, thereby flushing deposits downward during the cleaning process.

33.一种从上向下清洗蒸汽发生器的方法,该方法包括:穿过蒸汽发生器的一个手孔插入一清洗头装置,并将该清洗头装置向上升至在蒸汽发生器上部管束的一个流槽附近的一个位置;围绕紧邻清洗头装置的上部管束喷射清洗流体;依次地降下清洗头并在下一个下层流槽附近将其重新定位;再次围绕紧邻清洗头装置的管束喷射清洗流体,由此在清洗过程中向下冲刷沉积物;以及向蒸汽发生器中注水,并在下降清洗头时,使其内的水位降低,这样由于射出的清洗流体冲击水的表面,将提供额外的搅动和清洗作用。 33. A method of cleaning a steam generator from the top down, the method comprising: a steam generator through the hand hole to insert a cleaning head device, and the cleaning head upwardly in an upper portion of the apparatus to the steam generator tube bundle a position close to a flow cell; adjacent the upper portion of the cleaning head device around the tube bundle jetting washing fluid; successively lowering the cleaning head and the next lower layer near the gutter repositioned; again around the head adjacent to the cleaning fluid jet cleaning means of restraint, by This flushing down in the cleaning process deposits; and water to the steam generator, and during lowering the cleaning head, so that the water level is lowered, so that the impact due to the cleaning fluid exiting the water surface, will provide additional agitation and cleaning action.

34.一种蒸汽发生器的上部管束的清洗设备,包括:一个清洗头装置的展开和支承装置,它可进入蒸汽发生器的内部并设有围绕蒸汽发生器的上部管束提升和定位一清洗头装置的装置;与上述支承装置相固定的清洗头装置,上述清洗头装置包括用于围绕蒸汽发生器上部管束的管子喷射清洗流体的装置;以及用于在清洗期间将上述清洗头装置围绕蒸汽发生器的上部管束对齐的装置。 An upper tube bundle cleaning device 34. A steam generator, comprising: a cleaning head device to expand and support means, which can enter the interior of the steam generator and a steam generator tube bundle around the upper lifting and positioning a cleaning head means means; and said support means fixed to the cleaning head means, said head means comprises means for cleaning the tube around the upper portion of the steam generator tube bundle cleaning fluid ejection means; and means for the cleaning during the cleaning head around the steam generating unit the upper portion of the bundle alignment device.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN100531936C21 Nov 200526 Aug 2009韩国电力公社Cleaning device of steam generator for jetting water under high pressure
CN101321989B5 Oct 200625 Apr 2012塞拉尼斯国际公司Steam generation apparatus and method
CN105830168A *21 Aug 20143 Aug 2016西屋电气有限责任公司Steam generator sludge lance apparatus
Classifications
International ClassificationF28G15/04, F22B37/48, F28G9/00, F28G3/16, F22B37/52, F22B37/54
Cooperative ClassificationF28G3/16, F22B37/483
European ClassificationF22B37/48B, F28G3/16
Legal Events
DateCodeEventDescription
21 May 1997C06Publication
24 Mar 2004C14Granted
7 Mar 2007C19Lapse of patent right due to non-payment of the annual fee