CN201535264U - Canned motor pump with check valve at water outlet - Google Patents
Canned motor pump with check valve at water outlet Download PDFInfo
- Publication number
- CN201535264U CN201535264U CN200920075239XU CN200920075239U CN201535264U CN 201535264 U CN201535264 U CN 201535264U CN 200920075239X U CN200920075239X U CN 200920075239XU CN 200920075239 U CN200920075239 U CN 200920075239U CN 201535264 U CN201535264 U CN 201535264U
- Authority
- CN
- China
- Prior art keywords
- pump
- check valve
- canned motor
- liquid
- pump housing
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 abstract description 28
- 238000010438 heat treatment Methods 0.000 abstract description 13
- 239000000919 ceramic Substances 0.000 abstract description 8
- 239000000725 suspension Substances 0.000 abstract 1
- 238000009841 combustion method Methods 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 206010011376 Crepitations Diseases 0.000 description 2
- 238000005039 chemical industry Methods 0.000 description 2
- 230000002035 prolonged Effects 0.000 description 2
- 230000002285 radioactive Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- -1 chemical industry Substances 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000003020 moisturizing Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Abstract
The utility model discloses a canned motor pump with a check valve at the water outlet thereof, which comprises a pump body and a canned motor connected with the pump body. The pump body is also provided with a check valve, and the check valve is arranged at the outlet of the pump. The utility model greatly ensures that the liquid in the liquid heating equipment can not flow back to cause dry burning to damage the liquid heating equipment due to the suspension of water supply or the pump failure, and also ensures that when the pump body cracks, no leakage can occur to damage the human body and to pollute the environment; the upper and lower thrust bearings effectively ensure the product efficiency when the impeller string quantity is in the proper working position; and the medium in the circulation loop can pass through the gap between the stator shielding sleeve and the rotor shielding sleeve, so that the ceramic shaft and the ceramic bearing can be well lubricated, thereby reducing the wear rate of the ceramic shaft and the ceramic bearing, lowering the noise, and greatly prolonging the service life of the canned motor pump.
Description
Technical field
The utility model relates to a kind of equipment for liquid transportation, particularly be a kind of shielded electric-pump that is applicable to industries such as solar energy, boiler, medicine, chemical industry, oil, refrigeration.
Background technique
The shielded electric-pump of present commonplace use is the centrifugal pump that impeller is installed, the impeller quantity of this centrifugal pump is directly proportional with lift, increase along with the increasing of lift, but when impeller is increased to certain quantity and reaches capacity in its limited space after, its lift also along with obtaining qualification, can not adapt to high-lift needs.Be extensive use of a kind of screw pump in refrigeration and chemical industry; be used for carrying and have corrosive, hypertoxic, radioactive liquid; its structure be pump housing inner screw with the rotatingshaft of motor between be connected by the axle envelope; after this axle is enclosed in long use; can be aging damaged; need uninterrupted the shutdown to change or repair; increased maintenance cost; reduced working efficiency; otherwise can cause generation leak of liquid when carrying liquid, and especially carry to have corrosivity, severe toxicity, radioactive liquid, both human body was damaged; befouling environment should not extensively be promoted again.And liquid heating apparatus cutting off the water or pump causes the liquid return dry combustion method when fault occurring easily, damages liquid heating apparatus, also can damage befouling environment to human body.
The model utility content
The utility model has overcome the aforesaid liquid heating plant and has cut off the water or pump causes the liquid return dry combustion method when fault occurring easily, damage liquid heating apparatus, human body is damaged shortcoming with befouling environment, and provide a kind of water outlet to have the shielded electric-pump of safety check.
To achieve these goals, the utility model is to realize by the following technical solutions:
A kind of shielded electric-pump of water outlet band safety check, it is made up of with the shield electric machine that is connected with the pump housing the pump housing, also is provided with a safety check on this pump housing,
Described safety check is arranged on pump housing outlet port;
Seal ring on the described safety check is fixed in pump housing outlet inwall.
The utility model has guaranteed that greatly liquid heating apparatus can not damage liquid heating apparatus because of cutting off the water or causing the liquid return dry combustion method during failure of pump; Guarantee when pump housing generation crackle, can not leak human body is damaged and befouling environment; And guaranteed effectively that by the last lower thrust-bearing that is provided with the impeller string quantity makes it be in the efficient that product has been guaranteed in normal working position; And the circulation loop medium makes thrust-bearing, porcelain shaft and ceramic bearing that enough lubricated rates that reduces wear mutually be arranged through the gap between stator can and the Rotor can, has reduced noise, has prolonged the working life of shielded electric-pump greatly.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is installed in structural representation on the shielded electric-pump for the utility model.
Fig. 2 is the structural representation of safety check.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to figure 1 and Fig. 2:
A kind of shielded electric-pump of water outlet band safety check, it is made up of with the shield electric machine 2 that is connected with the pump housing 1 pump housing 1, also is provided with a safety check 3 on this pump housing 1, and this safety check 3 is arranged on a side of pump housing outlet 4 by the fixing seal device; Water outlet place on safety check 3 also is provided with a usefulness, and this prevents the backflow device of liquid countercurrent; Safety check 3 is made up of safety check valve gap 5, check-valve spring 6, spool 7, liner 8 and seal ring 9 these several parts; Liner 8 on the safety check 3 and seal ring 9 are close to the pump housing by Sealing and are exported 4 places; The pump housing 1 is communicated in blade wheel chamber 10, and blade wheel chamber 10 is communicated in following screen board assembly 11; Ceramic bearing 12 on the following screen board 11 was arranged on liquid bath and was communicated in gap location between stator can 13 and the Rotor can assembly 14, gap between stator can 13 and the Rotor can assembly 14 crosses by being arranged on ceramic bearing 12 in the upper bearing bracket 15 that liquid baths are communicated with and upper bearing bracket inner chamber 16, upper bearing bracket inner chamber 16 be arranged on porcelain shaft 12 return ports and be communicated with impeller inlet 17 places.
When shielded electric-pump is worked, the magnetic field that shield electric machine 2 produces provides power to drive rotor operation, liquid is carried liquid from impeller inlet 17 pressurization backs to the pump housing 1 outlet, liquid exports 4 directions to the pump housing and moves to the spool 7 of safety check 3 back valve core 7 of exerting pressure, make spool 7 and liner 8 be separated from, liquid flows out pump housing outlet 4, when impeller does not rotate or the impeller operation back pump housing when exporting 4 pressure greater than the pressure of impeller outlet 17,8 sealings of spool 7 and liner, the pump housing exports 4 liquid and does not reflux in the pump housing 1 like this.
When the utility model is applied to solar water heater system, shielded electric-pump is started working non-return valve core 7 is moved to water outlet 4 directions when solar water heater needs moisturizing, water filling in the water heater heating pipe, when shielded electric-pump do not work or pump housing import 19 lacks of water or pressure when being lower than the pump housing and exporting 4 water pressures safety check 3 be back in the shielded electric-pump pump housing 1 and the conduit pipeline with regard to stoping the water in the water heater heating pipe, guaranteed that solar water heater makes whole system lose efficacy because of anhydrous heating when absorbing solar energy.
The utility model has guaranteed that greatly liquid heating apparatus can not damage liquid heating apparatus because of cutting off the water or causing the liquid return dry combustion method during failure of pump; Guarantee when pump housing generation crackle, can not leak human body is damaged and befouling environment; Guaranteed effectively that by the last lower thrust-bearing that is provided with the impeller string quantity makes it be in the efficient that product has been guaranteed in normal working position; And the circulation loop medium makes thrust-bearing, porcelain shaft and ceramic bearing that enough lubricated rates that reduces wear mutually be arranged through the gap between stator can and the Rotor can, has reduced noise, has prolonged the working life of shielded electric-pump greatly.
More than show and described basic principle of the present utility model and 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; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, 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 (1)
1. the shielded electric-pump of a water outlet band safety check, it is made up of with the shield electric machine that is connected with the pump housing the pump housing, it is characterized in that, also is provided with a safety check on this pump housing, and described safety check is arranged on pump housing outlet port; Seal ring on the described safety check is fixed in pump housing outlet inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920075239XU CN201535264U (en) | 2009-07-24 | 2009-07-24 | Canned motor pump with check valve at water outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920075239XU CN201535264U (en) | 2009-07-24 | 2009-07-24 | Canned motor pump with check valve at water outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201535264U true CN201535264U (en) | 2010-07-28 |
Family
ID=42535043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920075239XU Expired - Lifetime CN201535264U (en) | 2009-07-24 | 2009-07-24 | Canned motor pump with check valve at water outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201535264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321459A (en) * | 2015-07-07 | 2017-01-11 | 杭州三花研究院有限公司 | Electric driving pump |
-
2009
- 2009-07-24 CN CN200920075239XU patent/CN201535264U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321459A (en) * | 2015-07-07 | 2017-01-11 | 杭州三花研究院有限公司 | Electric driving pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130320 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. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201318 NANHUI, SHANGHAI TO: 230088 HEFEI, ANHUI PROVINCE |
|
| 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: 20130320 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100728 |
|
| CX01 | Expiry of patent term |