US20090074596A1 - Small ozone gas-water mixing pump - Google Patents
Small ozone gas-water mixing pump Download PDFInfo
- Publication number
- US20090074596A1 US20090074596A1 US12/221,771 US22177108A US2009074596A1 US 20090074596 A1 US20090074596 A1 US 20090074596A1 US 22177108 A US22177108 A US 22177108A US 2009074596 A1 US2009074596 A1 US 2009074596A1
- Authority
- US
- United States
- Prior art keywords
- water
- ozone
- mixing pump
- impeller
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D31/00—Pumping liquids and elastic fluids at the same time
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/60—Pump mixers, i.e. mixing within a pump
- B01F25/64—Pump mixers, i.e. mixing within a pump of the centrifugal-pump type, i.e. turbo-mixers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/027—Details of the magnetic circuit
Definitions
- the present invention relates to a gas-water mixing pump, and more particularly to a small gas-water mixing pump used for mixing ozone and water, wherein the motor has an output power less than 50 W.
- Ozone is an excellent chemical preparation, because it can instantly kill bacteria and viruses. It can also decompose harmful chemical pollutant without creating new pollutants. Therefore, the ozone has been widely applied to large scale water treatment equipment.
- the household appliances, such as dish washers and washing machines have been widely used, and need to be treated by ozone.
- ozone has not been practically applied to the household appliances.
- the main reason that ozone has not been applied to the household appliances is that small ozone gas-water mixing equipment, which is efficient, stable and low cost, is not available yet.
- the dissolving efficiency of the ozone gas-water mixing equipment should be high, so as to limit the ozone concentration to environmental standards.
- the mixing pump has high dissolving efficiency, so it is adopted in industry.
- industrial mixing equipment is not applicable to household appliances.
- An object of the present invention is to provide a small ozone gas-water mixing pump (having a motor output power less than 50 W), which is applicable to the household appliances, such as dish washers and washing machines, etc.
- Another object of the present invention is to provide a small ozone gas-water mixing pump (having a motor output power less than 50 W), which is highly efficient, stable, reliable, small in size, and low cost.
- the present invention provides a pump casing, an impeller, and a motor.
- a permanent magnet A is provided on the impeller.
- a permanent magnet B is mounted on a device connected to the rotor of the motor, like a rotary plate connected with or integrated with the rotor.
- the motor drives the permanent magnet B to rotate.
- the permanent magnet B pushes the permanent magnet A to rotate through magnetic force, so as to drive the impeller to rotate synchronously.
- the motor drives impeller without shafting.
- Ozone is strong oxidant, which can accelerate the aging of the sealing rubber, so that using rubber gasket to seal driving shaft for a water pump is not reliable, especially when there is ozone in water, and this problem has been existed for a long time.
- the ceramic seal ring widely adopted by the present water pump is more reliable than the rubber gasket, but has a complicated structure, costs a lot, and takes up more room; besides, it still partially uses rubber gasket.
- shaft sealing produces higher frictional resistance, which consumes a large part of the motor output power.
- the frictional resistance of the same kind of product cannot be assured to be the same. In this case, the output power of the water pump of the same kind of product significantly varies. Therefore, for household appliance, the water pump with a driving shaft cannot be adopted.
- the present invention uses magnetic force to drive impeller without using a driving shaft, so that the driving shaft sealing problems is avoided, and the maintenance work is easier.
- the driving structure using magnetic force is simple in structure. If the brushless DC motor is adopted, the permanent magnet B is mounted on the rotary plate of the motor rotor. This structure is safe, simple, and small, so as to be applied to the tiny or small pumps. Without using shaft, the coaxial precision demand between the impeller and the motor shaft is lowered, and the motor and the pump body is easily maintained and replaced. If the impeller is trapped or overloaded, the motor will not be trapped or overloaded, so as to avoid the burning damage of the motor.
- FIG. 1 is a schematic view of a centrifugal type mixing pump according to the preferred embodiment of the present invention.
- FIG. 2 is a schematic view of a vortex type mixing pump according to the above preferred embodiment of the present invention.
- FIG. 3 is a schematic view of a vortex type mixing pump according to the above preferred embodiment of the present invention, illustrating the ozone conduit and the water flowing direction.
- FIG. 4 is a schematic view of a vortex type mixing pump according to the above preferred embodiment of the present invention, illustrating an application of a brushless DC motor.
- FIG. 5 is a side sectional view of a vortex type mixing pump according to the above preferred embodiment of the present invention.
- FIG. 6 is a top sectional view at plane A-A of a vortex type mixing pump according to the above preferred embodiment of the present invention.
- FIG. 7 is a side sectional view of a vortex type mixing pump having only one water channel according to the above preferred embodiment of the present invention.
- FIG. 1 of the drawings a structure of a centrifugal type mixing pump according to a preferred embodiment of the present invention is illustrated.
- a water inlet is provided on the central axis of the mixing pump.
- Leaves 3 are provided on the surface of an impeller 2 .
- a permanent magnet A ( 4 ) is provided on an outer circle portion of the impeller 2 .
- a permanent magnet B ( 5 ) is mounted on a device coaxially connected with the motor 6 , such as a rotary plate.
- the motor 6 drives the permanent magnet B ( 5 ) to rotate, and the permanent magnet B ( 5 ) impulses the permanent magnet A ( 4 ), so as to drive the impeller 2 to rotate synchronously.
- the rotating leaf 3 drives water to rotate, produces centrifugal force, and increases the pressure and moving speed of the water.
- the speedy leaves 3 interact with the stationary pump casing 1 to produce an intense turbulent vortex.
- the bubbles in the water are torn up to produce more and smaller bubbles, so that larger gas-water contacting area is obtained so as to increase the ozone dissolving efficiency.
- the turbulent vortex is more intense, the force to tear the bubble in the water is stronger, so that the bubbles in the water are smaller and the ozone dissolves more efficiently.
- the mixing pump shown in FIG. 2 , FIG. 3 , and FIG. 4 is a vortex mixing pump.
- the leaves 3 are provided on an outer circle portion of the impeller 2 , and the water inlet is provided on an outer circle of the mixing pump.
- the leaves 3 are provided on an outer circle portion of the impeller 2 , and form a radiating shape.
- the rotation of the impeller 2 drives the leaves 3 to move around so as to propel the water to speed up, so that kinetic and potential energy (pressure) of water is constantly increasing.
- a vortex mixing pump produces more intense turbulence vortex than a centrifugal mixing pump.
- the vortex mixing pump is a better choice to be used in the gas-water mixing pump.
- the ozone gas can be added into the water before infusing into the mixing pump (premixing), or the ozone conduit 8 can be inserted into the mixing pump directly.
- the inserting position is at the water inlet, as shown in FIG. 3 .
- the permanent magnets A and B are positioned as near as possible to the outer edge to increase a diameter thereof, so that the moment arm of the permanent magnets A and B are increased, so when the torsion remains, the magnetic driving force can be reduced, which is shown in FIGS. 1 , 2 , 3 and 4 .
- a rotor in the motor 6 is connected to the device for fastening the permanent magnet B 5 via a shaft to drive the permanent magnet B 5 .
- the brushless DC motor 4 is a brushless DC motor.
- the rotor of the motor 6 is an annular magnet, and the stator with a winded coil is disposed inside the annular rotor.
- the rotor is connected to central shaft via a rotary plate, and the permanent magnet B 5 is mounted on the rotary plate.
- Such a structure is simple and compact.
- the brushless DC motor has high efficiency and long lifespan, and is safe and reliable, so as to be a great choice for household appliance.
- the N-S polar direction of the permanent magnets A and B is the direction of the axis of the motor and the impeller, as shown in FIG. 4 .
- the magnetic line of force between the permanent magnets A and B is the shortest, and the attraction between the permanent magnets A and B is the strongest.
- the corresponding two permanent magnets A and B have opposite polarity, so as to attract each other; the permanent magnet B and the permanent magnet A that are adjacent to the corresponding permanent magnet A therewith have same polarity, so as to repel each other. Because of the dislocation between the corresponding two permanent magnets A and B, the permanent magnet B has acting force with two adjacent permanent magnets A, wherein one is attraction, and the other is repellence, so that the magnetic force is fully taken.
- Nd—Fe—B is the best in terms of cost and magnetic intensity. Therefore, in the present invention, Nd—Fe—B is the first choice.
- the rotation of the permanent magnets A and B produce alternating magnetic field, especially between the permanent magnets A and the permanent magnets B.
- the alternating magnetic field produces electric eddy current, which has two major disadvantages. Firstly, electromagnetic field lowers the magnetic driving force between the permanent magnets A and B. Secondly, the electric eddy current produces heat and increases the load of the motor. Therefore, the pump casing, especially between the permanent magnets A and B, should be made of non-conductive and non-metal material. Plastic is easily shaped, low cost, and is capable of resisting oxidization and corrosion, so that the plastic completely meets the demand of the household appliance. In the present invention, plastic pump casing is the first choice.
- the motor is a brushless DC motor including a stator 14 , a rotor 12 , a motor shaft 13 , and a rotary plate 11 .
- the rotor 12 is firmly connected to the motor shaft 13 via rotary plate 11 .
- the permanent magnet B is partially imbedded in the rotary plate 11 .
- the pump casing 1 and the pump cover 15 are sealed by a sealing gasket 17 .
- the permanent magnet A ( 4 ) is entirely imbedded in the impeller 2 , so as to be separated from water, because the permanent magnet, usually made of iron-base material, easily gets rusty when contacting with water, especially ozone water. As shown in FIG.
- the ozone gas enters into Venturi-tube 18 through ozone conduit 8 .
- the ozone gas is premixed into water through Venturi-tube 18 , before infusing into the mixing pump. Only through the intense turbulent vortex produced by the impeller of the mixing pump, can the big bubbles transform into many tiny bubbles, which helps the ozone dissolve into water.
- the vortex type of mixing pump shown in FIG. 7 is similar to the mixing pump shown in FIG. 5 .
- the major difference is that there are two water channels at both sides of the impeller 2 , as shown in FIG. 5 , and there is only one water channel at left side of the impeller.
- the objective of such design is to dispose the permanent magnet A ( 4 ) more closely to the outer circle of the impeller 2 , so as to increase the magnetic driving torsion.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a small ozone gas-water mixing pump. The rotation of the leaves drives water to produce intense turbulence vortex, and the bubbles in the water are torn up producing more and smaller bubbles, so that the gas-water contacting area is enlarged, and the ozone is efficiently dissolved into water. The magnetic force between the permanent magnet A on impeller and the permanent magnet B on motor enables the motor driving the impeller without using shaft, so as to avoid sealing problems of the pump driving shaft. The present invention is simple in structure, low cost, safe, stable, and has high ozone dissolving efficiency, so that it is especially applicable to the household appliances, such as dish washers and washing machines, etc.
Description
- 1. Field of Invention
- The present invention relates to a gas-water mixing pump, and more particularly to a small gas-water mixing pump used for mixing ozone and water, wherein the motor has an output power less than 50 W.
- 2. Description of Related Arts
- Ozone is an excellent chemical preparation, because it can instantly kill bacteria and viruses. It can also decompose harmful chemical pollutant without creating new pollutants. Therefore, the ozone has been widely applied to large scale water treatment equipment. The household appliances, such as dish washers and washing machines have been widely used, and need to be treated by ozone. However, ozone has not been practically applied to the household appliances. The main reason that ozone has not been applied to the household appliances is that small ozone gas-water mixing equipment, which is efficient, stable and low cost, is not available yet.
- High ozone concentration in the air is harmful to human beings. Therefore, the dissolving efficiency of the ozone gas-water mixing equipment should be high, so as to limit the ozone concentration to environmental standards. The mixing pump has high dissolving efficiency, so it is adopted in industry. However, industrial mixing equipment is not applicable to household appliances.
- An object of the present invention is to provide a small ozone gas-water mixing pump (having a motor output power less than 50 W), which is applicable to the household appliances, such as dish washers and washing machines, etc.
- Another object of the present invention is to provide a small ozone gas-water mixing pump (having a motor output power less than 50 W), which is highly efficient, stable, reliable, small in size, and low cost.
- The principle of the present invention is that the rotation of the leaves of the water pump produces intense turbulence vortex, and the bubbles in the water are torn up to produce more and smaller bubbles, so that the ozone is efficiently mixed with and dissolved into water. Accordingly, in order to accomplish the above object, the present invention provides a pump casing, an impeller, and a motor. A permanent magnet A is provided on the impeller. Outside of the pump casing, at a place corresponding to the permanent magnet A, a permanent magnet B is mounted on a device connected to the rotor of the motor, like a rotary plate connected with or integrated with the rotor. The motor drives the permanent magnet B to rotate. According to the character of magnetic poles, that is unlike poles attract and like poles repel, the permanent magnet B pushes the permanent magnet A to rotate through magnetic force, so as to drive the impeller to rotate synchronously. Thus, the motor drives impeller without shafting.
- Ozone is strong oxidant, which can accelerate the aging of the sealing rubber, so that using rubber gasket to seal driving shaft for a water pump is not reliable, especially when there is ozone in water, and this problem has been existed for a long time. The ceramic seal ring widely adopted by the present water pump is more reliable than the rubber gasket, but has a complicated structure, costs a lot, and takes up more room; besides, it still partially uses rubber gasket. For tiny or small pump, shaft sealing produces higher frictional resistance, which consumes a large part of the motor output power. The frictional resistance of the same kind of product cannot be assured to be the same. In this case, the output power of the water pump of the same kind of product significantly varies. Therefore, for household appliance, the water pump with a driving shaft cannot be adopted.
- The present invention uses magnetic force to drive impeller without using a driving shaft, so that the driving shaft sealing problems is avoided, and the maintenance work is easier. The driving structure using magnetic force is simple in structure. If the brushless DC motor is adopted, the permanent magnet B is mounted on the rotary plate of the motor rotor. This structure is safe, simple, and small, so as to be applied to the tiny or small pumps. Without using shaft, the coaxial precision demand between the impeller and the motor shaft is lowered, and the motor and the pump body is easily maintained and replaced. If the impeller is trapped or overloaded, the motor will not be trapped or overloaded, so as to avoid the burning damage of the motor.
- These and other objectives, features, and advantages of the present invention will become apparent in the following detailed description, the accompanying drawings, and the appended claims.
-
FIG. 1 is a schematic view of a centrifugal type mixing pump according to the preferred embodiment of the present invention. -
FIG. 2 is a schematic view of a vortex type mixing pump according to the above preferred embodiment of the present invention. -
FIG. 3 is a schematic view of a vortex type mixing pump according to the above preferred embodiment of the present invention, illustrating the ozone conduit and the water flowing direction. -
FIG. 4 is a schematic view of a vortex type mixing pump according to the above preferred embodiment of the present invention, illustrating an application of a brushless DC motor. -
FIG. 5 is a side sectional view of a vortex type mixing pump according to the above preferred embodiment of the present invention. -
FIG. 6 is a top sectional view at plane A-A of a vortex type mixing pump according to the above preferred embodiment of the present invention. -
FIG. 7 is a side sectional view of a vortex type mixing pump having only one water channel according to the above preferred embodiment of the present invention. - Referring to
FIG. 1 of the drawings, a structure of a centrifugal type mixing pump according to a preferred embodiment of the present invention is illustrated. A water inlet is provided on the central axis of the mixing pump.Leaves 3 are provided on the surface of animpeller 2. A permanent magnet A (4) is provided on an outer circle portion of theimpeller 2. Outside of thepump casing 1, at a place corresponding to the permanent magnet A (4), a permanent magnet B (5) is mounted on a device coaxially connected with themotor 6, such as a rotary plate. Themotor 6 drives the permanent magnet B (5) to rotate, and the permanent magnet B (5) impulses the permanent magnet A (4), so as to drive theimpeller 2 to rotate synchronously. The rotatingleaf 3 drives water to rotate, produces centrifugal force, and increases the pressure and moving speed of the water. Thespeedy leaves 3 interact with thestationary pump casing 1 to produce an intense turbulent vortex. The bubbles in the water are torn up to produce more and smaller bubbles, so that larger gas-water contacting area is obtained so as to increase the ozone dissolving efficiency. When the turbulent vortex is more intense, the force to tear the bubble in the water is stronger, so that the bubbles in the water are smaller and the ozone dissolves more efficiently. - The mixing pump shown in
FIG. 2 ,FIG. 3 , andFIG. 4 is a vortex mixing pump. As shown inFIG. 3 , theleaves 3 are provided on an outer circle portion of theimpeller 2, and the water inlet is provided on an outer circle of the mixing pump. Theleaves 3 are provided on an outer circle portion of theimpeller 2, and form a radiating shape. The rotation of theimpeller 2 drives theleaves 3 to move around so as to propel the water to speed up, so that kinetic and potential energy (pressure) of water is constantly increasing. A vortex mixing pump produces more intense turbulence vortex than a centrifugal mixing pump. Although it has lower converting efficiency from the mechanical energy of the impeller to the kinetic energy and pressure potential energy of the water; because the vortex mixing pump has more intense turbulence vortex than the centrifugal mixing pump, and the vortex mixing pump has a higher gas-water dissolving efficiency than that of the centrifugal mixing pump. Therefore, the vortex mixing pump is a better choice to be used in the gas-water mixing pump. - The ozone gas can be added into the water before infusing into the mixing pump (premixing), or the
ozone conduit 8 can be inserted into the mixing pump directly. Usually the inserting position is at the water inlet, as shown inFIG. 3 . The permanent magnets A and B are positioned as near as possible to the outer edge to increase a diameter thereof, so that the moment arm of the permanent magnets A and B are increased, so when the torsion remains, the magnetic driving force can be reduced, which is shown inFIGS. 1 , 2, 3 and 4. As shown inFIGS. 1 and 2 , a rotor in themotor 6 is connected to the device for fastening thepermanent magnet B 5 via a shaft to drive thepermanent magnet B 5. The motor shown inFIG. 4 is a brushless DC motor. The rotor of themotor 6 is an annular magnet, and the stator with a winded coil is disposed inside the annular rotor. The rotor is connected to central shaft via a rotary plate, and thepermanent magnet B 5 is mounted on the rotary plate. Such a structure is simple and compact. The brushless DC motor has high efficiency and long lifespan, and is safe and reliable, so as to be a great choice for household appliance. - In order to make the most of the attraction between the permanent magnets A and B, and produce effective moment to drive impeller to rotate, the N-S polar direction of the permanent magnets A and B is the direction of the axis of the motor and the impeller, as shown in
FIG. 4 . Comparing with other arrangements, the magnetic line of force between the permanent magnets A and B is the shortest, and the attraction between the permanent magnets A and B is the strongest. When the permanent magnet B drives the permanent magnet A to rotate, due to the loading effect of the impeller, the permanent magnets A and B are dislocated; due to the fact that like poles repel while unlike poles attract, the adjacent permanent magnets A on theimpeller 2 are arranged to have opposite polarity, as shown inFIG. 3 . The corresponding two permanent magnets A and B have opposite polarity, so as to attract each other; the permanent magnet B and the permanent magnet A that are adjacent to the corresponding permanent magnet A therewith have same polarity, so as to repel each other. Because of the dislocation between the corresponding two permanent magnets A and B, the permanent magnet B has acting force with two adjacent permanent magnets A, wherein one is attraction, and the other is repellence, so that the magnetic force is fully taken. - There are a variety of permanent magnets. The Nd—Fe—B is the best in terms of cost and magnetic intensity. Therefore, in the present invention, Nd—Fe—B is the first choice. The rotation of the permanent magnets A and B produce alternating magnetic field, especially between the permanent magnets A and the permanent magnets B. If the pump casing is made of metal, the alternating magnetic field produces electric eddy current, which has two major disadvantages. Firstly, electromagnetic field lowers the magnetic driving force between the permanent magnets A and B. Secondly, the electric eddy current produces heat and increases the load of the motor. Therefore, the pump casing, especially between the permanent magnets A and B, should be made of non-conductive and non-metal material. Plastic is easily shaped, low cost, and is capable of resisting oxidization and corrosion, so that the plastic completely meets the demand of the household appliance. In the present invention, plastic pump casing is the first choice.
- Referring to
FIG. 5 andFIG. 6 , a vortex type of mixing pump of the present invention is illustrated. The motor is a brushless DC motor including astator 14, arotor 12, amotor shaft 13, and arotary plate 11. Therotor 12 is firmly connected to themotor shaft 13 viarotary plate 11. The permanent magnet B is partially imbedded in therotary plate 11. Thepump casing 1 and thepump cover 15 are sealed by a sealinggasket 17. The permanent magnet A (4) is entirely imbedded in theimpeller 2, so as to be separated from water, because the permanent magnet, usually made of iron-base material, easily gets rusty when contacting with water, especially ozone water. As shown inFIG. 6 , the ozone gas enters into Venturi-tube 18 throughozone conduit 8. The ozone gas is premixed into water through Venturi-tube 18, before infusing into the mixing pump. Only through the intense turbulent vortex produced by the impeller of the mixing pump, can the big bubbles transform into many tiny bubbles, which helps the ozone dissolve into water. - The vortex type of mixing pump shown in
FIG. 7 is similar to the mixing pump shown inFIG. 5 . The major difference is that there are two water channels at both sides of theimpeller 2, as shown inFIG. 5 , and there is only one water channel at left side of the impeller. The objective of such design is to dispose the permanent magnet A (4) more closely to the outer circle of theimpeller 2, so as to increase the magnetic driving torsion. - One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.
- It will thus be seen that the objects of the present invention have been fully and effectively achieved. It embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.
Claims (7)
1. A ozone-water mixing pump having the motor output power less than 50 W, comprising a pump casing, an impeller, and a motor, wherein a permanent magnet A (4) is mounted on the impeller, outside of the pump casing, at a place corresponding to the permanent magnet A (4), a permanent magnet B (5) is mounted on a device connected with the rotor of the motor.
2. The ozone-water mixing pump, as recited in claim 1 , wherein the mixing pump is vortex type.
3. The ozone-water mixing pump, as recited in claim 1 , wherein N-S polar direction of the permanent magnets A and B is the axial direction of the motor and the impeller.
4. The ozone-water mixing pump, as recited in claim 1 , wherein the adjacent permanent magnets A have opposite magnetic polarity.
5. The ozone-water mixing pump, as recited in claim 1 , wherein the permanent magnets A and B are made of Nd—Fe—B.
6. The ozone-water mixing pump, as recited in claim 1 , wherein the pump casing is made of plastic.
7. The ozone-water mixing pump, as recited in claim 1 , wherein the permanent A (4) is imbedded in the impeller.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200710077128.8 | 2007-09-19 | ||
CNA2007100771288A CN101185858A (en) | 2007-09-19 | 2007-09-19 | Minitype ozone air-water mixing pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090074596A1 true US20090074596A1 (en) | 2009-03-19 |
Family
ID=39478605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/221,771 Abandoned US20090074596A1 (en) | 2007-09-19 | 2008-08-05 | Small ozone gas-water mixing pump |
Country Status (2)
Country | Link |
---|---|
US (1) | US20090074596A1 (en) |
CN (1) | CN101185858A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9051939B2 (en) | 2011-12-09 | 2015-06-09 | Delta Electronics, Inc. | Recirculation fan and fan assembly thereof |
DE102015208378A1 (en) | 2015-05-06 | 2016-11-10 | BSH Hausgeräte GmbH | Laundry care device with a radial fan |
US20160341202A1 (en) * | 2015-05-18 | 2016-11-24 | Johnson Electric S.A. | Electric motor and electric pump |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110180668B (en) * | 2019-07-01 | 2024-01-30 | 河南黎明重工科技股份有限公司 | Shaftless driving impeller powder concentrator for powder sorting |
CN113998791B (en) * | 2021-10-25 | 2023-04-18 | 吉林大学 | Submersible aerator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3205827A (en) * | 1964-04-28 | 1965-09-14 | March Mfg Co | Magnetically driven centrifugal pump assembly |
US6030188A (en) * | 1996-05-28 | 2000-02-29 | Terumo Kabushiki Kaisha | Centrifugal blood pump assembly having magnetic material embedded in impeller vanes |
US20020166520A1 (en) * | 2001-05-11 | 2002-11-14 | Markus Heim | Pump for fluid media |
US7086778B2 (en) * | 2000-10-09 | 2006-08-08 | Levtech, Inc. | System using a levitating, rotating pumping or mixing element and related methods |
-
2007
- 2007-09-19 CN CNA2007100771288A patent/CN101185858A/en active Pending
-
2008
- 2008-08-05 US US12/221,771 patent/US20090074596A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3205827A (en) * | 1964-04-28 | 1965-09-14 | March Mfg Co | Magnetically driven centrifugal pump assembly |
US6030188A (en) * | 1996-05-28 | 2000-02-29 | Terumo Kabushiki Kaisha | Centrifugal blood pump assembly having magnetic material embedded in impeller vanes |
US7086778B2 (en) * | 2000-10-09 | 2006-08-08 | Levtech, Inc. | System using a levitating, rotating pumping or mixing element and related methods |
US20020166520A1 (en) * | 2001-05-11 | 2002-11-14 | Markus Heim | Pump for fluid media |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9051939B2 (en) | 2011-12-09 | 2015-06-09 | Delta Electronics, Inc. | Recirculation fan and fan assembly thereof |
DE102015208378A1 (en) | 2015-05-06 | 2016-11-10 | BSH Hausgeräte GmbH | Laundry care device with a radial fan |
US10633777B2 (en) | 2015-05-06 | 2020-04-28 | BSH Hausgeräte GmbH | Laundry-care appliance having a radial fan |
US20160341202A1 (en) * | 2015-05-18 | 2016-11-24 | Johnson Electric S.A. | Electric motor and electric pump |
Also Published As
Publication number | Publication date |
---|---|
CN101185858A (en) | 2008-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20090074596A1 (en) | Small ozone gas-water mixing pump | |
EP2915739A1 (en) | Induced hollow screw driving apparatus | |
MXPA01001523A (en) | Fluid pump. | |
US20050214141A1 (en) | Driving motor, especially for a pump | |
JPH10505998A (en) | Electronically switched reaction motor | |
RU2006102133A (en) | DEVICE FOR TRANSMISSION OF ROTARY MOTION TO A SLAVE SHAFT, IN PARTICULAR, FOR RECIRCULATION PUMPS FOR A FLUID | |
JP3188469U (en) | Medium pressure pump | |
WO2007040663A8 (en) | Axial flow pump with multi-grooved rotor | |
JP2015095997A (en) | Motor | |
KR960703284A (en) | Power generator | |
KR20130138505A (en) | Water pump | |
JPH1070858A (en) | Dynamo-electric machine with hollow rotor | |
CN101138642B (en) | Ozone water immersion-washing device | |
CN203548260U (en) | Direct drive type permanent magnetic isolation pump | |
CN105536595B (en) | Efficient permanent magnet diving mixer containing pre-washing function | |
CN201090457Y (en) | Minitype ozone and air water mixing pump | |
TW200610251A (en) | Electric rotation device | |
CN210673259U (en) | Electromagnetic drive type washing pump and washing machine using same | |
CN212958930U (en) | Pipeline power generation device | |
CN103541931A (en) | Directly driven permanent magnet isolation pump | |
CN202091211U (en) | High-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming pump | |
CN208169143U (en) | Self power generation fluid rotating mechanism and turbine pump | |
CN201027667Y (en) | Magnetic suspension pump | |
CN102828967A (en) | High temperature resistance rare earth permanent magnet brushless DC (Direct Current) self-priming pump | |
CN205461893U (en) | High -efficient permanent magnetism dive mixer that contains washing function |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |