CN201461446U - Shielding electric pump for air conditioning unit - Google Patents
Shielding electric pump for air conditioning unit Download PDFInfo
- Publication number
- CN201461446U CN201461446U CN2009200755275U CN200920075527U CN201461446U CN 201461446 U CN201461446 U CN 201461446U CN 2009200755275 U CN2009200755275 U CN 2009200755275U CN 200920075527 U CN200920075527 U CN 200920075527U CN 201461446 U CN201461446 U CN 201461446U
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- outer circulation
- pump
- rotor shaft
- conditioning unit
- electric machine
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Abstract
The utility model relates to a shielding electric pump for an air conditioning unit, which comprises a pump body and a shielding motor, wherein the shell of the shielding motor is connected with the pump body through flanges, and a rotor shaft is arranged in a rotor; a rotor shaft through hole is arranged on the rotor shaft, and an external circulating system is arranged at the outer side of the shell of the shielding motor; an external circulating water inlet and an external circulating water outlet are arranged on an external circulating cavity, and the external circulating water inlet is connected with one end of a cooling water pipe; the external circulating water outlet is connected with the other end of the cooling water pipe, and the cooling water pipe comes from the air conditioning unit; the external circulating cavity is attached to the outer side of the shell of the shielding motor, and the rotor shaft through hole is communicated with the pump body; and the rotor shaft through hole and the external circulating cavity are independent. The utility model reduces the temperature of the shielding motor, reduces the aging degree of the insulation system of the shielding motor caused by excessively high temperature, reduces the environment temperature, and improves the higher-temperature medium pumping capacity of the shielding pump, thereby ensuring the service life of the shielding motor; and the utility model reduces the number of the external ribs of the shell of the shielding motor shell, thereby simplifying the structure and reducing cost.
Description
Technical field
The utility model relates to a kind of shielded electric-pump, is specifically related to a kind of air-conditioning unit shielded electric-pump.
Background technique
The pipeline shielded electric-pump is with its absolute no leaks, is widely used in liquid such as conveying acid in the industry such as oil, chemical industry, refrigeration, food, national defence, atomic power, alkali, inflammable and explosive, severe toxicity.An important indicator weighing pipeline shielded electric-pump functional reliability is the mean free error time, mean free error time is that the longer the better, and the important spare part that determines average Mean time to failure is the working life of shield electric machine and pivot friction pair, so the stressed of strict control shield electric machine and radial friction pair is the key that improves pipeline shielded electric-pump reliability.
A kind of air-conditioning unit shielded electric-pump is made of the pump housing and shield electric machine, and the pump housing comprises pump housing water intake, impeller and pump housing water outlet, establishes impeller cavity in the described impeller; Shield electric machine comprises rotor and stator.Establish rotor shaft in the rotor, rotor shaft passes bearing, the rotation of rotor shaft impeller.The liquid that impeller will be carried the pump housing pumps from pump housing water outlet through impeller cavity from the inspiration of pump housing water intake.
From the maintenance status of user feedback and returned work as can be known, the pipeline shielded electric-pump is because the wearing and tearing of friction pair cause product rejection, and the wearing and tearing between the thrust bearing friction pair are particularly serious mostly.Thereby the key point that addresses this problem is the lubrication friction pair, thereby improves the reliability of whole unit.
Also have more serious problem be shield electric machine when using for a long time temperature raise, shielded electric-pump can not be in normal operating mode; Motor temperature is too high to cause the accelerated ageing of electrical machine insulation system, has influenced the working life of shield electric machine; The ambient temperature on every side of shielded electric-pump raises in addition, and is unfavorable to the shielded electric-pump long-time running.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of air-conditioning unit shielded electric-pump, to solve the existing existing many deficiencys of shielded electric-pump.This model utility is applicable in the industry such as oil, chemical industry, refrigeration, food, national defence, atomic power liquid such as carrying acid, alkali, inflammable and explosive, severe toxicity.
The technical problem of the required solution of the utility model can be achieved through the following technical solutions:
A kind of air-conditioning unit shielded electric-pump is made of the pump housing and shield electric machine, and described shield electric machine shell adopts flange to be connected with the pump housing, and the described pump housing comprises pump housing water intake, impeller and pump housing water outlet, establishes impeller cavity in the described impeller; Described shield electric machine comprises rotor and stator, and described stator twines stator coil outward, it is characterized in that,
Be provided with rotor shaft in the described rotor, described rotor shaft is provided with the rotor shaft through hole;
Described shield electric machine shell arranged outside has an external circulating system;
Described external circulating system comprises outer circulation cavity, outer circulation water intake and outer circulation water outlet;
Described outer circulation cavity is provided with outer circulation water intake and outer circulation water outlet, and outer circulation water intake and water-cooling tube one end join, and the outer circulation water outlet and the water-cooling tube the other end join.
Described outer circulation cavity is attached to the outside of shield electric machine shell.
Described rotor shaft through hole is communicated with the pump housing, and rotor shaft through hole and outer circulation cavity are independently.
Described water-cooling tube is the water-cooling tube of air-conditioning unit, and described outer circulation cavity is communicated with the water-cooling tube of air-conditioning unit.
Rotor shaft through hole and outer circulation cavity are independently, and institute's circuit liquid is also different with temperature.By the rotor shaft through hole be that the liquid that pump is carried mainly is lubricious friction pair, be the air-conditioning unit water that is used for cooling off and mainly be the cooling shield electric machine by the outer circulation cavity, guarantee that shield electric machine normally moves.The utility model is by partly being provided with the external circulation cavity body device at shield electric machine, long-term steady running in the time of can fed sheet of a media, and simple in structure, effect is remarkable.
The beneficial effects of the utility model:
1, reduced the temperature of shield electric machine, guaranteed that shielded electric-pump is under the normal operating mode to work;
2, greatly reduce because of motor temperature is too high and cause the accelerated ageing of electrical machine insulation system, the working life of having guaranteed shield electric machine.
3, greatly reduced the ambient temperature on every side of shielded electric-pump, guaranteed that it can be in long-term operation continuously.
4, improve the ability that shielded electric-pump is carried the medium of higher temperature.
5, reduced the external fin of shield electric machine shell, reduced cost, energy saving makes the shielded electric-pump structure simpler.
6, removed and utilize the efficiency of shielded electric-pump own to lower the temperature, improved the performance of electric pump.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present utility model.
Number in the figure:
1 is the pump housing, and 11 is pump housing water intake, and 12 is pump housing water outlet, and 13 is impeller, and 14 is impeller cavity; 2 is shield electric machine, and 21 is the shield electric machine shell, and 22 is rotor, and 23 is rotor shaft, and 24 is bearing, and 25 is stator coil, and 26 is the rotor shaft through hole; 3 is flange; 4 is external circulating system, and 41 are the outer circulation water intake, and 42 are the outer circulation water outlet, and 44 are the outer circulation cavity.
Embodiment
In order to make technological means of the present utility model, creation characteristic, to reach purpose and effect is easy to understand,, further set forth the utility model below in conjunction with concrete diagram.
A kind of air-conditioning unit shielded electric-pump as shown in Figure 1, is made of the pump housing 1 and shield electric machine 2, and shield electric machine 2 adopts flange 3 to be connected with the pump housing 1.
The pump housing 1 comprises pump housing water intake 11, impeller 13 and pump housing water outlet 12, establishes impeller cavity 14 in the impeller 13.This shielded electric-pump
Shield electric machine 2 comprises shield electric machine shell 21, rotor 22 and stator, stator twines stator coil 25 outward, shield electric machine shell 21 is a tubular, shield electric machine shell 21 leading edges are the ring structure that expands outwardly, in ring structure flange 3 is set partly, shield electric machine shell 21 is connected with the pump housing 1, is about to shield electric machine 2 and couples together with the pump housing 1.
A kind of embodiment is provided with rotor shaft 23 in the rotor 22, and rotor shaft 23 is provided with rotor shaft through hole 26, and rotor shaft through hole 26 is arranged at vertically (promptly axial) of rotor shaft, and rotor shaft through hole 26 is concentric with the axle center of rotor shaft 23.
The arranged outside of shield electric machine shell 21 has an external circulating system 4; External circulating system comprises outer circulation cavity 44, outer circulation water intake 41 and outer circulation water outlet 42.
Outer circulation cavity 44 is attached to the outside of shield electric machine shell 21. and outer circulation cavity 44 is a tubular structure, be that tubular structure with dissection is set furtherly. outer circulation cavity 44 is provided with outer circulation water intake 41 and outer circulation water outlet 42, outer circulation water intake 41 joins with water-cooling tube one end, outer circulation water outlet 42 joins with the water-cooling tube the other end. and water-cooling tube is the water-cooling tube of air-conditioning unit, and outer circulation cavity 44 is communicated with the water-cooling tube of air-conditioning unit.
Rotor shaft through hole 26 is communicated with the pump housing 1, and rotor shaft through hole 26 is independently with outer circulation cavity 44.
Rotor shaft through hole 26 is independently with outer circulation cavity 44, and institute's circuit liquid is also different with temperature.By rotor shaft through hole 26 be that the liquid that pump is carried mainly is lubricious friction pair, be the air-conditioning unit water that is used for cooling off and mainly be cooling shield electric machine 2 by outer circulation cavity 44, guarantee that shield electric machine normally moves.The utility model is by being provided with 4 for external circulating system in shield electric machine 2 parts, long-term steady running in the time of can fed sheet of a media, and simple in structure, effect is remarkable.
Compare with existing shielded electric-pump, the utility model has reduced the temperature of shield electric machine, guarantees that shielded electric-pump is under the normal operating mode to work; Reduction causes the accelerated ageing of electrical machine insulation system, the working life of having guaranteed shield electric machine because of motor temperature is too high; Reduced the ambient temperature on every side of shielded electric-pump, guaranteed that it can be in long-term operation continuously.
The utility model improves the ability that shielded electric-pump is carried the medium of higher temperature.
Remove the pattern of utilizing the efficiency of shielded electric-pump own to lower the temperature, improved the performance of electric pump.
Simultaneously, reduced the external fin of shield electric machine shell, reduced cost, energy saving makes the shielded electric-pump structure simpler.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. an air-conditioning unit shielded electric-pump is made of the pump housing and shield electric machine, and described shield electric machine shell adopts flange to be connected with the pump housing, and the described pump housing comprises pump housing water intake, impeller and pump housing water outlet, establishes impeller cavity in the described impeller; Described shield electric machine comprises rotor and stator, and described stator twines stator coil outward, it is characterized in that, is provided with rotor shaft in the described rotor, and described rotor shaft is provided with the rotor shaft through hole; Described shield electric machine shell arranged outside has an external circulating system; Described external circulating system comprises outer circulation cavity, outer circulation water intake and outer circulation water outlet; Described outer circulation cavity is provided with outer circulation water intake and outer circulation water outlet, and outer circulation water intake and water-cooling tube one end join, and the outer circulation water outlet and the water-cooling tube the other end join.
2. a kind of air-conditioning unit shielded electric-pump according to claim 1, it is characterized in that: described outer circulation cavity is attached to the outside of shield electric machine shell.
3. a kind of air-conditioning unit shielded electric-pump according to claim 1, it is characterized in that: described water-cooling tube is the water-cooling tube of air-conditioning unit, described outer circulation cavity is communicated with the water-cooling tube of air-conditioning unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200755275U CN201461446U (en) | 2009-07-30 | 2009-07-30 | Shielding electric pump for air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200755275U CN201461446U (en) | 2009-07-30 | 2009-07-30 | Shielding electric pump for air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461446U true CN201461446U (en) | 2010-05-12 |
Family
ID=42388800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200755275U Expired - Lifetime CN201461446U (en) | 2009-07-30 | 2009-07-30 | Shielding electric pump for air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461446U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909533A (en) * | 2016-07-12 | 2016-08-31 | 合肥新沪屏蔽泵有限公司 | Easily crystallized medium-conveying shielded electric pump for air conditioner |
| CN108194430A (en) * | 2017-12-27 | 2018-06-22 | 合肥新沪屏蔽泵有限公司 | A kind of effluent canned motor pump for conveying gas-liquid mixed media |
| CN109779923A (en) * | 2019-01-21 | 2019-05-21 | 临城清泉水泵制造有限公司 | A kind of submersible pump with high lift performance |
-
2009
- 2009-07-30 CN CN2009200755275U patent/CN201461446U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909533A (en) * | 2016-07-12 | 2016-08-31 | 合肥新沪屏蔽泵有限公司 | Easily crystallized medium-conveying shielded electric pump for air conditioner |
| CN108194430A (en) * | 2017-12-27 | 2018-06-22 | 合肥新沪屏蔽泵有限公司 | A kind of effluent canned motor pump for conveying gas-liquid mixed media |
| CN108194430B (en) * | 2017-12-27 | 2020-02-04 | 合肥新沪屏蔽泵有限公司 | Side flow shielding pump for conveying gas-liquid mixed medium |
| CN109779923A (en) * | 2019-01-21 | 2019-05-21 | 临城清泉水泵制造有限公司 | A kind of submersible pump with high lift performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEFEI XINHU CANNED MOTOR PUMP CO., LTD. Free format text: FORMER OWNER: XINHU DYNAMO PLANT CO., LTD., SHANGHAI Effective date: 20130225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201318 NANHUI, SHANGHAI TO: 230088 HEFEI, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130225 Address after: 230088 Anhui city of Hefei province high tech Zone Technology Park Bai Yan Yang Road No. 1 Patentee after: Hefei Xinhu Canned Motor Pump Co., Ltd. Address before: 201318 No. 333 East Cambridge Road, Nanhui District, Shanghai Patentee before: Shanghai Xinhu Electric Machine Factory Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |