CN2759039Y - Permanent magnet wet-electric pump - Google Patents
Permanent magnet wet-electric pump Download PDFInfo
- Publication number
- CN2759039Y CN2759039Y CN 200420109760 CN200420109760U CN2759039Y CN 2759039 Y CN2759039 Y CN 2759039Y CN 200420109760 CN200420109760 CN 200420109760 CN 200420109760 U CN200420109760 U CN 200420109760U CN 2759039 Y CN2759039 Y CN 2759039Y
- Authority
- CN
- China
- Prior art keywords
- pump
- rotor
- impeller
- permanent magnetic
- wet type
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a permanent magnet wet-electric pump, which comprises a centrifugal pump and a driving motor, wherein the centrifugal pump comprises a pump body and an impeller, and a suction port and a discharge port are arranged on the pump body. The driving motor is a permanent magnet wet type motor and comprises a front end cover, a radial sliding bearing, a thrust bearing, a motor shaft, a stator, a rotor, a shell, a rear end cover and a wire connecting box, wherein a permanent magnet is fixed on the rotor, and the rotor and the impeller are arranged on the motor shaft. The front end cover is fixed between the pump body and the shell and the rear end cover is fixed to the rear end of the shell. The motor shaft is supported by the sliding bearing and the thrust bearing. The utility model has the advantages of high efficiency and high power factor, and the energy-saving effect on a continuously operated electric pump is significant.
Description
(1) technical field
The utility model relates to a kind of permanent magnetic wet type electric pump, is applicable to that mainly the thin clean non-corrosive liquid of clear water and no solids or fiber is carried occasion, is the upgrading type product of submersible pump, pipeline electric pump.
(2) background technology
The advantage that shielded electric pump has and do not have leakage, volume is little, running noise is little and applicability is wide, be to carry toxic liquid (as toxin, unpleasant liquid), the visual plant of dangerous liquid (as corrosivity, explosivity, inflammability and volatile liquid) and precious liquid can be widely used in numerous occasions of industries such as oil, chemical industry, pharmacy, food, building and refrigeration.Canned pump mainly is made up of the stator of impeller, the pump housing, axle, bearing, housing, motor and rotor etc.Feature is that impeller and rotor coaxial are installed in the pump housing, is provided with housing between the stator of motor and rotor, and coil of stator of motor conductively-closed cover is protected and is transferred medium and isolates fully; The submersible pump of wet motor structure, mainly the top by electric pump is the pump part, comprises several parts compositions such as impeller, the pump housing, pump cover; The bottom of electric pump is the vertical cage type asynchronous motor of Water, comprises stator, rotor, front end housing, rear end cap and bearing support structure.Because motor interior is full of clear water, its stator winding, rotor and bearing all will be worked in water.Stator winding generally adopts insulated water proof winding wires etc. to make.
Canned pump is provided with stator can, and the existence of housing makes the stator of motor and rotor clearance increase, and the vortex flow loss is inevitable, and this makes pump overall efficiency descend.The eddy current loss of metallic shield cover accounts for the 5%-20% of total transmission power.Long-time running is very important to the waste of the energy.Because the manufacturing process difficulty of housing is bigger, manufacturing cost is higher relatively, and price is also often higher; The submersible pump unit efficiency of wet motor structure is a little more than canned pump.But because of the built-in motor of above-mentioned two class electric pumps is induction motor, the efficient of induction shield motor and induction wet type motor and power factor all can't be compared with permanent magnetic wet type motor efficiently.The efficient and the power factor of this two classes electric pump are lower, and this is their weak point.
(3) summary of the invention
Be efficient and the lower deficiency of power factor that overcomes electric pump in the prior art, the invention provides the permanent magnetic wet type electric pump of a kind of high efficiency and High Power Factor.
The technical scheme that the present invention solves its technical problem is: a kind of permanent magnetic wet type electric pump, comprise centrifugal pump, drive motors, described centrifugal pump comprises the pump housing and impeller, comprise suction inlet and outlet on the described pump housing, described drive motors is the permanent magnetic wet type motor, comprise front end housing, bush(ing) bearing, thrust bearing, arbor, stator, rotor, shell, rear end cap, terminal box, be fixed with permanent magnet on the described rotor, the winding of described motor stator adopts anti-corrosion, insulated winding wire is made, described rotor and described impeller are installed on the described arbor, described front end housing is fixed between the pump housing and the shell, described rear end cap is fixed on outer casing back, and described arbor is supported by described sliding bearing and thrust bearing.
Further, described rotor is made of rotor core, sliver, end ring and thulium permanent magnet piece, adopts 2-8 group rare-earth permanent magnetic steel piece to arrange along the cross-section center axial symmetry in the described rotor and constitutes rotor magnetic circuit.
Further, described suction inlet and described outlet radial arrangement are on same straight line.Perhaps: between described impeller and the described bush(ing) bearing mechanical seal is arranged.Perhaps: between the described pump housing and the described front end housing pump casing cover is set, described pump casing cover and described front end housing form a cavity, and the place is provided with mechanical seal at described pump casing cover.Perhaps: described impeller is the channel-type impeller.Perhaps: the described pump housing is made up of suction inlet, outlet, connected body, several stators, discharge body, and described discharge body is fixed on the final stage stator, and described outlet is located at discharges on the body; Described suction inlet is located on the connected body; Described centrifugal pump is the centrifugal multistage pump multiple centrifugal pump that many group impellers and stator constitute, and the impeller spacer is set between each impeller; Between described impeller and the bush(ing) bearing mechanical seal is arranged; Described arbor comprises pump shaft and motor shaft, and both pass through, shaft coupling connects, and the junction of described pump shaft and motor shaft is provided with the sand prevention ring; The front end of described drive motors is provided with voltage regulation part.
Further, described suction inlet and described outlet radial arrangement have mechanical seal between described impeller and the described bush(ing) bearing on same straight line.
Further, between described impeller and the described bush(ing) bearing mechanical seal is arranged, described impeller is the channel-type impeller.
Further, described rotor is provided with a rotor jacket outward.
Beneficial effect of the present invention is: compare with the induction type wet type electric pump with canned pump, do not need idle exciting current, can significantly improve power factor, stator current and stator resistance loss have been reduced, do not have the rotor resistance loss during stable operation, and do not use the housing of stator component, fundamentally eliminated the vortex flow loss of housing, thereby make its efficient can improve 2%～8% than the induction type wet type electric pump of same specification, the amplitude that can improve than the efficient of canned pump can be bigger.For the electric pump of continuous running, energy-saving effect brings considerable economic with highly significant.
(4) description of drawings
Fig. 1 is the vertical section structure schematic diagram of embodiment one described electric pump.
Fig. 2 is the vertical section structure schematic diagram of embodiment two described electric pumps.
Fig. 3 is the vertical section structure schematic diagram of embodiment three described horizontal electric pumps.
Fig. 4 is the vertical section structure schematic diagram of embodiment three described vertical electric pumps.
Fig. 5 is the vertical section structure schematic diagram of embodiment three described duct type electric pumps.
Fig. 6 is the vertical section structure schematic diagram of embodiment four described electric pumps.
Fig. 7 is the vertical section structure schematic diagram of embodiment five described electric pumps.
Fig. 8 is the vertical section structure schematic diagram of embodiment six described electric pumps.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Embodiment one
With reference to Fig. 1, permanent magnetic wet type electric pump is made up of the pump housing 1, impeller 2, front end housing 3, bush(ing) bearing 4, thrust bearing 5, arbor 6, stator 7, rotor 8, shell 9, rear end cap 10, terminal box 11.Rotor 8 and impeller 2 are installed on the arbor 6, and arbor 6 is supported by bush(ing) bearing 4 and thrust bearing 5; Rotor 8 is made of arbor 6, rotor core, sliver, end ring and thulium permanent magnet piece, adopt 4 groups of thulium permanent magnet pieces of arranging along the cross-section center axial symmetry in the rotor 8, rotor magnetic circuit structural can be built-in structure (can be built-in tangential formula or built-in radial formula or built-in mixed), and rotor is provided with a rotor jacket outward; Anti-corrosion, insulated winding wire making that the winding of stator 7 adopts, stator 7 is fixed on the shell 9; The pump housing 1 is provided with the suction inlet and the outlet of liquid, and front end housing 3 is fixed between the pump housing 1 and the shell 9, and rear end cap 10 is fixed on the shell 9.This permanent magnetic wet type electric pump shown in Figure 1 is horizontal, and vertical permanent magnetic wet type electric pump (mechanical seal is not set) is as shown in Figure 3 also arranged.
Behind electric pump suction inlet and the conveying fluid connection, behind stator winding and power connection, under the effect of rotating magnetic field, rotor rotates arbor, drives coaxial mounted wheel rotation, and the liquid at suction inlet place is inhaled into impeller, after the supercharging, exports through outlet.
Embodiment two
With reference to Fig. 2, permanent magnetic wet type electric pump is made up of the pump housing 1, impeller 2, front end housing 3, bush(ing) bearing 4, thrust bearing 5, arbor 6, stator 7, rotor 8, shell 9, rear end cap 10, terminal box 11.Rotor 8 and impeller 2 are installed on the arbor 6, and arbor 6 is supported by bush(ing) bearing 4 and thrust bearing 5; Rotor 8 is made of arbor 6, rotor core, sliver, end ring and thulium permanent magnet piece, adopt 6 groups of thulium permanent magnet pieces of arranging along the cross-section center axial symmetry in the rotor 8, rotor magnetic circuit structural can be built-in structure (can be built-in tangential formula or built-in radial formula or built-in mixed), and rotor is provided with a rotor jacket outward; Anti-corrosion, insulated winding wire making that the winding of stator 7 adopts, stator 7 is fixed on the shell 9; The pump housing 1 is provided with the suction inlet and the outlet of liquid, and the suction inlet of the liquid on the pump housing 1 and outlet are arranged on the same straight line, and front end housing 3 is fixed between the pump housing 1 and the shell 9, and rear end cap 10 is fixed on the shell 9.The suction inlet of liquid and outlet linear array have made things convenient for the layout of pipeline.
The intake flange of electric pump is with after the pipeline of carrying liquid is communicated with, behind motor stator winding and power connection, under the effect of rotating magnetic field, rotor rotates arbor, drives coaxial mounted wheel rotation, and the liquid at suction inlet place is inhaled into impeller, after the supercharging, export through outlet.
Embodiment three
With reference to Fig. 3, Fig. 4 and Fig. 5, permanent magnetic wet type electric pump is made up of the pump housing 1, impeller 2, front end housing 3, bush(ing) bearing 4, thrust bearing 5, arbor 6, stator 7, rotor 8, shell 9, rear end cap 10, terminal box 11, mechanical seal 12.Rotor 8 and impeller 2 are installed on the arbor 6, and arbor 6 is supported by bush(ing) bearing 4 and thrust bearing 5; Rotor 8 is made of arbor 6, rotor core, sliver, end ring and thulium permanent magnet piece, adopt 4 groups of thulium permanent magnet pieces of arranging along the cross-section center axial symmetry in the rotor 8, rotor magnetic circuit structural can be surface-type structure (surperficial convex type or a surperficial plug-in type), and rotor is provided with a rotor jacket outward; Anti-corrosion, insulated winding wire making that the winding of stator 7 adopts, stator 7 is fixed on the shell 9; The pump housing 1 is provided with the suction inlet and the outlet of liquid; Front end housing 3 is fixed between the pump housing 1 and the shell 9, and rear end cap 10 is fixed on the shell 9; Mechanical seal 12 is arranged between impeller 2 and the bush(ing) bearing 4.This permanent magnetic wet type electric pump that has sealing has various ways, and as shown in Figure 3 horizontal arranged, and as shown in Figure 4 vertical also arranged, and also has the suction inlet of liquid as shown in Figure 5 and outlet to arrange point-blank.Use mechanical seal that clean water in the permanent magnetic wet type motor or cleaning machine oil are kept apart with pumped (conveying) medium, but the kind of pumped (conveying) medium is widened, can be used for the conveying of the suitable various media of the pump housing, impeller and cap material.
Embodiment four
With reference to Fig. 6, permanent magnetic wet type electric pump is made up of the pump housing 1, channel-type impeller 2, front end housing 3, bush(ing) bearing 4, thrust bearing 5, arbor 6, stator 7, rotor 8, shell 9, rear end cap 10, terminal box 11, mechanical seal 12.Rotor 8 and impeller 2 are installed on the arbor 6, and arbor 6 is supported by bush(ing) bearing 4 and thrust bearing 5; Rotor 8 is made of arbor 6, rotor core, sliver, end ring and thulium permanent magnet piece, 6 groups of thulium permanent magnet pieces of arranging along the cross-section center axial symmetry are set in the rotor 8, rotor magnetic circuit structural can be built-in structure (can be built-in tangential formula or built-in radial formula or built-in mixed), and rotor is provided with a rotor jacket outward; Anti-corrosion, insulated winding wire making that the winding of stator 7 adopts, stator 7 is fixed on the shell 9; The pump housing 1 is provided with the suction inlet and the outlet of liquid; Front end housing 3 is fixed between the pump housing 1 and the shell 9, and rear end cap 10 is fixed on the shell 9; Mechanical seal 12 is arranged between impeller 2 and the bush(ing) bearing 4.The permanent magnetic wet type electric pump of this employing channel-type impeller can be used for sewage effluent, allows the dirt of volume adequacy to pass through.
Embodiment five
With reference to Fig. 7, permanent magnetic wet type electric pump is made up of the pump housing 1, impeller 2, front end housing 3, bush(ing) bearing 4, thrust bearing 5, arbor 6, stator 7, rotor 8, shell 9, rear end cap 10, rear bearing block 14, mechanical seal 12, pump casing cover 13.Rotor 8 and impeller 2 are installed on the arbor 6, and arbor 6 is supported by bush(ing) bearing 4 and thrust bearing 5; Rotor 8 is made of arbor 6, rotor core, sliver, end ring and thulium permanent magnet piece, 4 groups of thulium permanent magnet pieces of arranging along the cross-section center axial symmetry are set in the rotor 8, rotor magnetic circuit structural can be built-in structure (can be built-in tangential formula or built-in radial formula or built-in mixed), anti-corrosion, insulated winding wire making that the winding of stator 7 adopts, stator 7 is fixed on the shell 9; Front end housing 3 and rear end cap 10 are fixed on the shell 9; The pump housing 1 is provided with the suction inlet and the outlet of liquid; Pump casing cover 13 is fixed between the pump housing 1 and the front end housing 3, and the space between pump casing cover 13 and the front end housing 3 is full of clean water or clean machine oil, and pump casing cover 13 places are provided with mechanical seal 12.Clean water or clean machine oil between pump casing cover 13 and the front end housing 3 can play heat-blocking action, and this permanent magnetic wet type electric pump can be used for carrying high-temp liquid.
Embodiment six
With reference to Fig. 8, permanent magnetic wet type electric pump, comprise centrifugal pump, drive motors, box coupling 17, connected body 18 and voltage regulation part 19, described centrifugal pump comprises stator 24, impeller 2, discharges body 25, pump shaft 15 and impeller spacer 16, described impeller 2 is installed on the described pump shaft 15, and centrifugal pump is the centrifugal multistage pump multiple centrifugal pump that many group impellers and stator constitute, and the group of impeller and stator is several to be determined according to needs, Fig. 8 is the multistage pump that 7 groups of impellers and stator constitute, and between each impeller 2 impeller spacer 16 is set; Described drive motors is the rare earth permanent magnet wet type electric motor, comprise end cap 3, top chock 21, bush(ing) bearing 4, thrust bearing 5, motor shaft 26, stator 7, rotor 8, shell 9, step 22, sand prevention ring 23, mechanical seal (or skeleton sealing) 12, described motor shaft is supported by described bush(ing) bearing 4 and thrust bearing 5, rotor 8 is by motor shaft 6, rotor core, sliver, end ring and thulium permanent magnet piece constitute, adopt 4 groups of thulium permanent magnet pieces of arranging along the cross-section center axial symmetry in the rotor 8, rotor magnetic circuit structural can be built-in structure (can be built-in tangential formula or built-in radial formula or built-in mixed), the winding of stator 7 adopts anti-corrosion, insulated winding wire is made, and stator 7 is fixed on the shell 9; Pump shaft 15 connects by box coupling 17 with motor shaft 6, is provided with connected body 18 outside the box coupling 17, and the face of cylinder of connected body 18 is provided with the suction inlet that is uniformly distributed along the circumference.This permanent magnetic wet type electric pump is contained in the well usually and uses, and from aquifer water-bearing stratum water is risen to ground.
Claims (10)
1. permanent magnetic wet type electric pump, comprise centrifugal pump, drive motors, described centrifugal pump comprises the pump housing and impeller, the described pump housing comprises suction inlet and outlet, it is characterized in that: described drive motors is the permanent magnetic wet type motor, comprise front end housing, bush(ing) bearing, thrust bearing, arbor, stator, rotor, shell, rear end cap, terminal box, be fixed with permanent magnet on the described rotor, the winding of described motor stator adopts anti-corrosion, insulated winding wire is made, described rotor and described impeller are installed on the described arbor, described front end housing is fixed between the pump housing and the shell, described rear end cap is fixed on outer casing back, and described arbor is supported by described sliding bearing and thrust bearing.
2, permanent magnetic wet type electric pump as claimed in claim 1, it is characterized in that: described rotor is made of rotor core, sliver, end ring and thulium permanent magnet piece, adopts 2-8 group rare-earth permanent magnetic steel piece to arrange along the cross-section center axial symmetry in the described rotor and constitutes rotor magnetic circuit.
3. permanent magnetic wet type electric pump as claimed in claim 2 is characterized in that: described suction inlet and described outlet radial arrangement are on same straight line.
4. permanent magnetic wet type electric pump as claimed in claim 2 is characterized in that: between described impeller and the described bush(ing) bearing mechanical seal is arranged.
5. permanent magnetic wet type electric pump as claimed in claim 3 is characterized in that: between described impeller and the described bush(ing) bearing mechanical seal is arranged.
6. permanent magnetic wet type electric pump as claimed in claim 2 is characterized in that: between the described pump housing and the described front end housing pump casing cover is set, described pump casing cover and described front end housing form a cavity, and the place is provided with mechanical seal at described pump casing cover.
7. permanent magnetic wet type electric pump as claimed in claim 2 is characterized in that: described impeller is the channel-type impeller.
8. permanent magnetic wet type electric pump as claimed in claim 4 is characterized in that: described impeller is the channel-type impeller.
9. permanent magnetic wet type electric pump as claimed in claim 2 is characterized in that: the described pump housing is made up of suction inlet, outlet, connected body, several stators, discharge body, and described discharge body is fixed on the final stage stator, and described outlet is located at discharges on the body; Described suction inlet is located on the connected body; Described centrifugal pump is the centrifugal multistage pump multiple centrifugal pump that many group impellers and stator constitute, and the impeller spacer is set between each impeller; Between described impeller and the bush(ing) bearing mechanical seal is arranged; Described arbor comprises pump shaft and motor shaft, and both pass through, shaft coupling connects, and the junction of described pump shaft and motor shaft is provided with the sand prevention ring; The front end of described drive motors is provided with voltage regulation part.
10, as the described permanent magnetic wet type electric pump of one of claim 1～9, it is characterized in that: described rotor is provided with a rotor jacket outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109760 CN2759039Y (en) | 2004-11-09 | 2004-11-09 | Permanent magnet wet-electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109760 CN2759039Y (en) | 2004-11-09 | 2004-11-09 | Permanent magnet wet-electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2759039Y true CN2759039Y (en) | 2006-02-15 |
Family
ID=36079175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109760 Expired - Fee Related CN2759039Y (en) | 2004-11-09 | 2004-11-09 | Permanent magnet wet-electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2759039Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126074A (en) * | 2011-12-23 | 2014-10-29 | 格兰富控股联合股份公司 | Wet-running centrifugal pump |
| CN105896770A (en) * | 2015-02-16 | 2016-08-24 | 欧亚瑟有限公司 | Pump with electric motor |
| CN111654132A (en) * | 2020-06-22 | 2020-09-11 | 北京航空航天大学 | Wet-type permanent magnet fault-tolerant motor for aviation electro-hydrostatic actuator |
| CN113357160A (en) * | 2021-07-16 | 2021-09-07 | 湖南耐普泵业股份有限公司 | Permanent-magnet leakage-free low-temperature pump |
-
2004
- 2004-11-09 CN CN 200420109760 patent/CN2759039Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126074A (en) * | 2011-12-23 | 2014-10-29 | 格兰富控股联合股份公司 | Wet-running centrifugal pump |
| CN104126074B (en) * | 2011-12-23 | 2017-02-22 | 格兰富控股联合股份公司 | Wet-running centrifugal pump |
| CN105896770A (en) * | 2015-02-16 | 2016-08-24 | 欧亚瑟有限公司 | Pump with electric motor |
| CN112003406A (en) * | 2015-02-16 | 2020-11-27 | 欧亚瑟有限公司 | Pump with electric motor |
| CN111654132A (en) * | 2020-06-22 | 2020-09-11 | 北京航空航天大学 | Wet-type permanent magnet fault-tolerant motor for aviation electro-hydrostatic actuator |
| CN111654132B (en) * | 2020-06-22 | 2021-04-06 | 北京航空航天大学 | Wet-type permanent magnet fault-tolerant motor for aviation electro-hydrostatic actuator |
| CN113357160A (en) * | 2021-07-16 | 2021-09-07 | 湖南耐普泵业股份有限公司 | Permanent-magnet leakage-free low-temperature pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101846085B (en) | Frequency conversion high-speed wet type submersible pump | |
| CN102369356A (en) | High-efficiency, multi-stage centrifugal pump and method of assembly | |
| CN201723460U (en) | Variable frequency high speed wet-type submersible pump | |
| CN106837814A (en) | A kind of micro centrifugal pump | |
| CN1773122A (en) | Permanent magnetic wet type electric pump | |
| CN1786479A (en) | Centrifugal pump for deep well | |
| CN2759039Y (en) | Permanent magnet wet-electric pump | |
| CN203308733U (en) | Traction-level compound molecule pump | |
| CN1773121A (en) | Pipe flowing electric pump | |
| CN208734564U (en) | A kind of double outlets water pump | |
| CN2908864Y (en) | Anti-vibration main structure long-axis deep-well pump | |
| CN2744863Y (en) | Pipe flow type electric pump | |
| CN1212334A (en) | Axial-flow pump | |
| CN215908071U (en) | Submersible wet type full tubular pump without shaft structure | |
| CN2929282Y (en) | Horizontal guide vane type multistage middle open centrifugal pump | |
| CN107448396A (en) | A kind of electromechanical integral pump | |
| CN210087613U (en) | Vertical sectional type long shaft pump | |
| CN202612120U (en) | Symmetrical radial split-type magnetic drive pump | |
| CN1272243A (en) | Fuel delivery system | |
| CN2475851Y (en) | Electric motor pump | |
| CN207004847U (en) | A kind of electromechanical integral pump | |
| CN202348695U (en) | Multistage impeller axial-flow type shield pump | |
| CN110500300A (en) | A kind of spiral vortex type hydrogen circulating pump | |
| CN207304176U (en) | A kind of micropump bell-type brushless motor stator | |
| CN218850469U (en) | Universal fluid module and universal fluid device using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060215 Termination date: 20091209 |