CN206246411U - A kind of nuclear power plant equipment cooling pump - Google Patents
A kind of nuclear power plant equipment cooling pump Download PDFInfo
- Publication number
- CN206246411U CN206246411U CN201621253629.8U CN201621253629U CN206246411U CN 206246411 U CN206246411 U CN 206246411U CN 201621253629 U CN201621253629 U CN 201621253629U CN 206246411 U CN206246411 U CN 206246411U
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- Prior art keywords
- pump
- pump cover
- cover
- chamber
- pump housing
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Abstract
The utility model discloses a kind of nuclear power plant equipment cooling pump, the structure of reinforcement is increased respectively in the inner chamber of pump cover and the pump housing, and the inside cavity in pump cover and the pump housing is separated by different chambers, such structure design can improve flow field of the medium in pump housing and eliminate remaining radial load of the medium in different pumping chambers, reduce hydraulic loss of the medium in cooling pump, reinforcement can also increase the overall construction intensity of the pump housing and resist the ability of media impingement simultaneously, increased the stability of operation, improve the anti-fatigue ability and bulk life time of cooling pump, ensure that cooling pump also can normal work under the earthquake of some strength.
Description
Technical field
The utility model is related to a kind of nuclear power plant equipment cooling pump for nuclear power engineering field.
Background technology
Nuclear power plant equipment need to carry out the cooling of normalization, and to ensure the safe operation of nuclear power station facility, equipment cooling pump is
One of visual plant in cooling system.Cooling pump allows for adapting to the round-the-clock environment in many regions, must also be able to realize nothing
People is on duty, remote control, therefore user is to cooling pump, it is proposed that requirement higher.Current cooling pump is primarily present following asking
Topic：Due to there is irrational place in cooling pump structure design, therefore cooling pump is in the process of running, and medium is in cooling pump
In hydraulic loss it is big；The mechanical strength for cooling down pump operation is not high, influences service life；The noise of cooling pump in running
Greatly, supporting construction is unstable；These all have impact on the stable operation of cooling pump, so as to raise the maintenance cost of cooling pump.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of nuclear power plant equipment cooling pump, it
The structural strength of the pump housing is improved, stability when cooling pump is run in a cooling system can be lifted.
Realizing a kind of technical scheme of above-mentioned purpose is：A kind of nuclear power plant equipment cooling pump, including cooling pump rotor and cold
But pump stator；
The cooling pump rotor, including rotary shaft and impeller；The impeller is socketed in the middle part of the rotary shaft；Described turn
The two ends of moving axis are removably socketed with first axle bearing sleeve and second bearing set respectively；The first axle bearing sleeve outer sheath is connected to
One bearing body；The second bearing set outside is socketed with second bearing body；
The cooling pump stator, including pump cover and the pump housing；The both sides of the pump cover and the pump housing are provided with mechanical seal, the pump
Body and pump cover pass through mechanical connection；The top center of the pump cover is provided with a wash tub pipe connector, and two L-types are rinsed
Water pipe connects the pump cover and the mechanical seal respectively；
The inner chamber of the pump cover includes upper pump cover pumping chamber and lower pump cover pumping chamber；The upper pump cover pumping chamber and it is described under
The connecting portion of pump cover pumping chamber is provided with two pump cover reinforcements；The outer wall of the pump cover reinforcement and the pump cover forms pump cover and adds
Strong chamber；
The inner chamber of the pump housing includes upper pump casing pumping chamber and lower pump body pumping chamber；The upper pump casing pumping chamber and it is described under
The connecting portion of pump housing pumping chamber is provided with two vertical pump cover reinforcements and two oblique pump cover reinforcements；The vertical pump cover is strengthened
Muscle and the oblique pump cover reinforcement form the pump housing in the pump housing and strengthen chamber；Two pump housings are strengthened chamber and are added by a level
Strong muscle connection.
Further, the pump cover is strengthened being provided with casing wear ring on the downside of chamber.
Further, the pump housing is strengthened being provided with casing ring on the upside of chamber.
Further, the first linking arm and the second linking arm are provided with the side wall of the pump housing；The clutch shaft bearing body passes through
First linking arm is connected with the pump housing；The second bearing body is connected by the second linking arm with the pump housing.
A kind of nuclear power plant equipment cooling pump of the present utility model, i.e., increased reinforcement respectively in the inner chamber of pump cover and the pump housing
Structure, and inside cavity in pump cover and the pump housing is separated by different chambers, and such structure design can improve medium and exist
Flow field in the pump housing simultaneously eliminates remaining radial load of the medium in different pumping chambers, reduces water of the medium in cooling pump
Power is lost, while reinforcement can also increase the overall construction intensity of the pump housing and resist the ability of media impingement, increased operation
Stability, improve the anti-fatigue ability and bulk life time of cooling pump, it is ensured that cooling pump also can under the earthquake of some strength
Normal work.
Brief description of the drawings
Fig. 1 is a kind of structural representation of nuclear power plant equipment cooling pump of the present utility model.
Specific embodiment
In order to be able to preferably understand the technical solution of the utility model, below by specifically embodiment and combine
Accompanying drawing is described in detail：
Refer to Fig. 1, a kind of nuclear power plant equipment cooling pump, including cooling pump rotor 1 and cooling pump stator 2.
Cooling pump rotor 1, including rotary shaft 11 and impeller 12；Impeller 12 is socketed in the middle part of rotary shaft 11；Rotary shaft 11
Two ends be removably socketed with respectively first axle bearing sleeve 13 and second bearing set 14；The outside of first axle bearing sleeve 13 is socketed with first
Bearing body 15；The outside of second bearing set 14 is socketed with second bearing body 16.
Cooling pump stator 2, including pump cover 21 and the pump housing 22.The both sides of pump cover 21 and the pump housing 22 are provided with mechanical seal 23.Pump
Body 22 and pump cover 21 are connected and sealed by mechanical seal 23.The top center of pump cover 21 is provided with a wash tub pipe connector
24, two L-type wash tub pipes 25 connect pump cover 21 and mechanical seal 23 respectively.Flushing system can be directly connected to wash tub pipe connection
Part 24, is rinsed in the case where need not open the pump housing to pump body structure, improves the efficiency for reorganizing and outfit maintenance.
The inner chamber of the pump housing 22 includes upper pump casing pumping chamber 221 and lower pump body pumping chamber 222；Upper pump casing pumping chamber 221 is with
The connecting portion of pump housing pumping chamber 222 is provided with two vertical pump housing reinforcements 223 and two oblique pump housing reinforcements 224；Vertical pump
Body reinforcement 223 and oblique pump housing reinforcement 224 form the pump housing in the pump housing 22 and strengthen chamber 226；Two pump housings are strengthened chamber 226 and are led to
A horizontal stiffener 225 is crossed to connect.
The structure of the above-mentioned reinforcement in pump cover 21 and the pump housing 22, by shape in the different chamber in the inner chamber body of cooling pump
Into different blockings and cut-off.When medium flowing in the pump housing via pump housing rotor 1, these blockings and separate
Remaining radial load of the medium in different pumping chambers can be eliminated, increases flow, the impact that reduction is caused to pump body structure.Together
When, reinforcement also has supporting role for the outer wall of pump body structure, can strengthen the overall structural strength of cooling pump, should be over the ground
During the emergency situations such as shake, the job stability of cooling pump can be lifted, it is ensured that for nuclear power station cooling device under emergency case
Lasting cooling.
The downside that pump cover strengthens chamber 214 is provided with casing wear ring 215.The upside that the pump housing strengthens chamber 226 is provided with pump housing sealing
Ring 227.Casing wear ring 215 and casing ring 227 are more than 50HB with the difference of hardness on the surface of impeller 12, it is to avoid be engaged.
The first linking arm 26 and the second linking arm 27 are provided with the side wall of the pump housing 22；Clutch shaft bearing body 15 connects by first
Arm 26 is connect to be connected with the pump housing 22；Second bearing body 16 is connected by the second linking arm 38 with the pump housing 22.Bearing body and the pump housing are connected
Connect, by increasing capacitance it is possible to increase stability during cooling pump work, reduction is rocked, and mitigates noise.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to illustrate that this practicality is new
Type, and be not used as be to restriction of the present utility model, if in spirit of the present utility model, to the above
Change, the modification of embodiment will all fall in Claims scope of the present utility model.
Claims (4)
1. a kind of nuclear power plant equipment cooling pump, including cooling pump rotor and cooling pump stator, it is characterised in that
The cooling pump rotor, including rotary shaft and impeller；The impeller is socketed in the middle part of the rotary shaft；The rotary shaft
Two ends be removably socketed with first axle bearing sleeve and second bearing set respectively；The first axle bearing sleeve outer sheath is connected to first axle
Hold body；The second bearing set outside is socketed with second bearing body；
The cooling pump stator, including pump cover and the pump housing；The both sides of the pump cover and the pump housing are provided with mechanical seal, the pump housing and
Pump cover passes through mechanical connection；The top center of the pump cover is provided with a wash tub pipe connector, two L-type wash tub pipes
The pump cover and the mechanical seal are connected respectively；
The inner chamber of the pump cover includes upper pump cover pumping chamber and lower pump cover pumping chamber；The upper pump cover pumping chamber and the lower pump cover
The connecting portion of pumping chamber is provided with two pump cover reinforcements；The outer wall of the pump cover reinforcement and the pump cover forms pump cover and strengthens
Chamber；
The inner chamber of the pump housing includes upper pump casing pumping chamber and lower pump body pumping chamber；The upper pump casing pumping chamber and the lower pump body
The connecting portion of pumping chamber is provided with two vertical pump cover reinforcements and two oblique pump cover reinforcements；The vertical pump cover reinforcement and
The oblique pump cover reinforcement forms the pump housing in the pump housing and strengthens chamber；Two pump housings strengthen chamber and pass through a horizontal stiffener
Connection.
2. a kind of nuclear power plant equipment cooling pump according to claim 1, it is characterised in that the pump cover strengthens the downside in chamber
It is provided with casing wear ring.
3. a kind of nuclear power plant equipment cooling pump according to claim 1, it is characterised in that the pump housing strengthens the upside in chamber
It is provided with casing ring.
4. a kind of nuclear power plant equipment cooling pump according to claim 1, it is characterised in that is provided with the side wall of the pump housing
One linking arm and the second linking arm；The clutch shaft bearing body is connected by the first linking arm with the pump housing；The second bearing
Body is connected by the second linking arm with the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253629.8U CN206246411U (en) | 2016-11-17 | 2016-11-17 | A kind of nuclear power plant equipment cooling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253629.8U CN206246411U (en) | 2016-11-17 | 2016-11-17 | A kind of nuclear power plant equipment cooling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246411U true CN206246411U (en) | 2017-06-13 |
Family
ID=59000670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621253629.8U Active CN206246411U (en) | 2016-11-17 | 2016-11-17 | A kind of nuclear power plant equipment cooling pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499672A (en) * | 2016-11-17 | 2017-03-15 | 上海阿波罗机械股份有限公司 | A kind of nuclear power plant equipment cooling pump |
-
2016
- 2016-11-17 CN CN201621253629.8U patent/CN206246411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499672A (en) * | 2016-11-17 | 2017-03-15 | 上海阿波罗机械股份有限公司 | A kind of nuclear power plant equipment cooling pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 555, Yisong Road, Nanqiao Town, Fengxian District, Shanghai 201401 Patentee after: SHANGHAI APOLLO MACHINERY Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 555, Yisong Road, Nanqiao Town, Fengxian District, Shanghai 201401 Patentee before: SHANGHAI APOLLO MACHINERY Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |