CN203476730U - Submersible axial-flow pump with built-in impeller - Google Patents
Submersible axial-flow pump with built-in impeller Download PDFInfo
- Publication number
- CN203476730U CN203476730U CN201320575268.9U CN201320575268U CN203476730U CN 203476730 U CN203476730 U CN 203476730U CN 201320575268 U CN201320575268 U CN 201320575268U CN 203476730 U CN203476730 U CN 203476730U
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- impeller
- water
- submersible
- bearing
- chamber
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Abstract
The utility model relates to a submersible axial-flow pump with a built-in impeller. The submersible axial-flow pump with the built-in impeller comprises a water suction chamber, an impeller hub and a water outlet chamber which are communicated coaxially, and further comprises a motor rotor and a motor stator. The motor rotor is fixedly arranged on the outer circumference of an impeller outer shell, one ends of more than three blades are evenly distributed and connected to the inner circumference of the impeller outer shell, and the other ends of the more than three blades are respectively connected with the impeller hub to form the impeller. The impeller is placed in the middle of the motor rotor, and the motor rotor and the impeller are made to form a whole. The motor stator is arranged outside the rotor in a sleeved mode to form a water filling type submersible motor. According to the submersible axial-flow pump with the built-in impeller, the axial length of the submersible axial-flow pump is shortened, so that the structure is compact; on the other hand, the requirements for the strength and the rigidity of a rotating shaft are lowered; the submersible motor is placed outside a flow channel, pumping water flow of the submersible axial-flow pump is not affected, and the efficiency of the submersible axial-flow pump and the safety and the reliability of the submersible motor are improved. A cartridge mechanical seal is used in a bearing chamber seal, the requirement for mounting precision is lowered, and floatability is good.
Description
Technical field
The utility model belongs to Submerged Motor Pumps technical field, the axle (mixing) that is specifically related to dive under water stream pump.
Background technique
Conventionally, diving axle (mixing) stream pump structure is that dry-type submersible motor is coaxially connected with submersible pump, and dry-type submersible motor is placed in the outlet passage of diving axle (mixing) stream pump, and the impeller of pump is on the water inlet limit of unit.The impeller of pump is pumped current, and the outer wall of process motor flows in outlet passage.Adapted dry-type submersible motor is all-sealed structure, and inner chamber is dry air.The deficiency that diving axle (mixing) the stream pump of this structural type exists: first, submersible motor is immersed in water for a long time, and the sealing of motor be difficult to guarantee, in the time of particularly in the darker water of stone submersion, the electric insulation of motor can not obtain Reliable guarantee, and dry-type submersible motor exists potential safety hazard.Secondly the impeller of pump is cantilever beam structure, only at side 300～500mm place of impeller, has a bearing fulcrum.This structural requirement machining accuracy is high, and shock resistance is poor simultaneously.It is inhomogeneous that impeller easily forms each gap, limit, causes the impeller of rotation and fixing impeller housing wiping accident mutually.In addition, dry-type submersible motor is placed in outlet passage, can affect the water outlet fluidised form of pumping current, directly the efficiency of impact diving axle (mixing) stream pump.Former diving axle (mixing) stream pump structure is complicated, and axial length is longer, not easy-maintaining, open and inspect.
Model utility content
In order to solve the functional reliability problem of diving axle (mixing) stream pump adapted motor, improve the safe operation stability of pump impeller, improve diving axle (mix) stream pump efficiency, the utility model is by architecture advances, provide a kind of simple in structure, be convenient to keep in repair the impeller built-in submersible axial flow pump of opening and inspecting.
The technical solution that realizes above-mentioned purpose is as follows: a kind of impeller built-in submersible axial flow pump, comprise suction chamber, impeller hub and water-supplying chamber that coaxial perforation connects, three's axial middle part is provided with rotating shaft, and one end of rotating shaft is positioned at suction chamber by the cooperation of suction side bearing and water suction bearing chamber; The other end is positioned at water-supplying chamber by the cooperation of waterexit end bearing and water outlet bearing chamber; Also comprise rotor, motor stator and circular stator casing, motor stator is fixedly installed in stator casing, the axial two ends of stator casing are being connected respectively the excircle middle part of suction chamber and the excircle middle part of water-supplying chamber, rotor is positioned at motor stator, rotor is fixedly installed on the excircle of circular impeller housing, forms an integral body with impeller housing; Uniform one end that is connecting three above blades on the inner circumference of described impeller housing, the other end of three above blades is connecting respectively impeller hub and is forming impeller, impeller is positioned at the middle part of rotor, make rotor and impeller form an integral body, the winding coil of described motor stator is water proof winding wires circle.
The material of described water proof winding wires circle is high strength radiation crosslinking polyethylene.
During work, motor internal is full of water, by electromagnetic induction drive motor rotor, rotates, and rotor and impeller are as a whole, and the rotation of impeller realizes the object of carrying liquid.Motor cavity is connected with ambient water by filtration, is suitable for being immersed in water for a long time.And have water as cold moving medium, radiating condition is good.Motor is safe and reliable to operation.
Described suction side bearing is radial bearing, and described waterexit end bearing is thrust-bearing, can bear radially, can bear doubledirection thrust bearing again.
The sealing of the sealing of described water suction bearing chamber and water outlet bearing chamber is integrated mechanical sealing, has reduced installation precision requirement, and floatability is good
Useful technique effect of the present utility model embodies in the following areas:
1. the utility model is welded into an integral body by impeller and rotor iron core by impeller housing, has greatly shortened submersible axial flow pump axial length, and axial length shortens to 1150 ㎜ left and right, makes compact structure; Intensity and the rigidity requirement of countershaft have been reduced on the other hand.Submersible motor is placed in the outside of runner, does not affect the pumping current of Submerged Motor Pumps, has improved the efficiency of Submerged Motor Pumps;
2. motor stator winding line adopts high strength radiation crosslinking polyethylene water proof winding wires, is suitable for being immersed in for a long time in water, improves the safety reliability of motor;
3. the rotating shaft two ends of impeller arrange respectively radial bearing and thrust-bearing, form 2 stable supporting structures, guarantee impeller working stability safety;
4. the sealing of bearing chamber adopts integrated mechanical sealing, reduced installation precision requirement, and floatability is good.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional view of Fig. 1.
Sequence number in upper figure: suction chamber 1, radial bearing 2, impeller 3, blade 31, impeller hub 32, water proof winding wires circle 4, stator casing 5, rotor 6, motor stator 7, key 8, thrust-bearing 9, water-supplying chamber 10, rotating shaft 11, integrated mechanical sealing 12, impeller housing 13.
In figure, arrow is water (flow) direction.
embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Referring to Fig. 1 and Fig. 2, a kind of impeller built-in submersible axial flow pump comprises suction chamber 1, the impeller hub 32He water-supplying chamber 10 of coaxial perforation, three's axial middle part is provided with rotating shaft 11, and one end of rotating shaft 11 is positioned at suction chamber 1 by the cooperation of suction side bearing and water suction bearing chamber; The other end is positioned at water-supplying chamber 10 by the cooperation of waterexit end bearing and water outlet bearing chamber; Impeller hub 32 is fixedly mounted in rotating shaft 11 by key 8; Also comprise rotor 6, motor stator 7 and circular stator casing 5, motor stator 7 is fixedly installed in stator casing 5, the axial two ends of stator casing 5 are being connected respectively the excircle middle part of suction chamber 1 and the excircle middle part of water-supplying chamber 10, and rotor 6 is positioned at motor stator 7.Rotor 6 is fixedly installed on the excircle of circular impeller housing 13, forms an integral body with impeller housing 13; Uniform one end that is connecting three blades 31 on the inner circumference of impeller housing 13, the other end of three blades 31 is connecting respectively impeller hub 32 and is forming impeller 3, and impeller 3 is positioned at the middle part of rotor 6, makes rotor 6 and impeller 3 form an integral body.The winding coil of motor stator is water proof winding wires circle 4, and the material of water proof winding wires circle 4 is high strength radiation crosslinking polyethylene.
Suction side bearing is radial bearing 2, and waterexit end bearing is thrust-bearing 9, and thrust-bearing 9 can bear radially, can bear doubledirection thrust bearing again.9 pairs of impellers 3 of radial bearing 2 and thrust-bearing play 2 stable support functions.Guarantee that impeller 3 work safetys are steady.The water suction sealing of bearing chamber and the sealing of water outlet bearing chamber are integrated mechanical sealing 12, reduced installation precision requirement, and floatability are good.
During work, motor internal is full of water, by electromagnetic induction drive motor rotor 6, rotates, and rotor 6 and impeller 3 are as a whole, and the rotation of impeller 3 realizes the object of carrying water.Motor cavity is connected with ambient water by the filtering mechanism of the water outlet setting of suction chamber 1, is suitable for being immersed in water for a long time.And have water as cold moving medium, radiating condition is good.Motor is safe and reliable to operation.The runner that is placed in submersible pump due to motor stator 7, rotor 6 is outside, does not affect pumping flow-shape, has improved the efficiency of submersible pump.
For impurity in anti-sealing enters integrated mechanical sealing 12, destroy sealability, enter water proof winding wires circle 4 for impurity in anti-sealing, destroy the electrical insulation properties of motor, the filtering mechanism arranging respectively at the water outlet of suction chamber 1 and the water inlet of water-supplying chamber 10 to water in impurity carry out filtration treatment, guarantee that integrated mechanical sealing 12 is safe and reliable, meanwhile, also play and prevent the impact to water proof winding wires circle 4 of pumping current that impeller 3 drives.
Claims (4)
1. an impeller built-in submersible axial flow pump, comprises suction chamber, impeller hub and the water-supplying chamber of coaxial perforation, and three's axial middle part is provided with rotating shaft, and one end of rotating shaft is positioned at suction chamber by the cooperation of suction side bearing and water suction bearing chamber; The other end is positioned at water-supplying chamber by the cooperation of waterexit end bearing and water outlet bearing chamber; Also comprise rotor, motor stator and circular stator casing, motor stator is fixedly installed in stator casing, the axial two ends of stator casing are being connected respectively the excircle middle part of suction chamber and the excircle middle part of water-supplying chamber, rotor is positioned at motor stator, form Water-filled Type Submersible Motors, it is characterized in that: rotor is fixedly installed on the excircle of circular impeller housing, form an integral body with impeller housing; Uniform one end that is connecting three above blades on the inner circumference of described impeller housing, the other end of three above blades is connecting respectively impeller hub and is forming impeller, and impeller is positioned at the middle part of rotor, makes rotor and impeller form an integral body; The winding coil of described motor stator is water proof winding wires circle.
2. a kind of impeller built-in submersible axial flow pump according to claim 1, is characterized in that: the material of described water proof winding wires circle is high strength radiation crosslinking polyethylene.
3. a kind of impeller built-in submersible axial flow pump according to claim 1 and 2, is characterized in that: described suction side bearing is radial bearing, and described waterexit end bearing is thrust-bearing.
4. according to a kind of impeller built-in submersible axial flow pump described in claim 1 or 3, it is characterized in that: the sealing of the sealing of described water suction bearing chamber and water outlet bearing chamber is integrated mechanical sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575268.9U CN203476730U (en) | 2013-09-17 | 2013-09-17 | Submersible axial-flow pump with built-in impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575268.9U CN203476730U (en) | 2013-09-17 | 2013-09-17 | Submersible axial-flow pump with built-in impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476730U true CN203476730U (en) | 2014-03-12 |
Family
ID=50225069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320575268.9U Withdrawn - After Issue CN203476730U (en) | 2013-09-17 | 2013-09-17 | Submersible axial-flow pump with built-in impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452866A (en) * | 2013-09-17 | 2013-12-18 | 合肥恒大江海泵业股份有限公司 | Submersible axial-flow pump with inbuilt impeller |
| CN104192987A (en) * | 2014-08-27 | 2014-12-10 | 川源(中国)机械有限公司 | Surface aeration machine |
-
2013
- 2013-09-17 CN CN201320575268.9U patent/CN203476730U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452866A (en) * | 2013-09-17 | 2013-12-18 | 合肥恒大江海泵业股份有限公司 | Submersible axial-flow pump with inbuilt impeller |
| CN103452866B (en) * | 2013-09-17 | 2016-06-29 | 合肥恒大江海泵业股份有限公司 | A kind of submersible axial-flow pump with inbuilt impeller |
| CN104192987A (en) * | 2014-08-27 | 2014-12-10 | 川源(中国)机械有限公司 | Surface aeration machine |
| CN104192987B (en) * | 2014-08-27 | 2016-08-24 | 川源(中国)机械有限公司 | A kind of surface aeration machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20160629 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |