CN201615086U - Component cooling water pump of nuclear power station of pressurized water reactor - Google Patents
Component cooling water pump of nuclear power station of pressurized water reactor Download PDFInfo
- Publication number
- CN201615086U CN201615086U CN2010201137032U CN201020113703U CN201615086U CN 201615086 U CN201615086 U CN 201615086U CN 2010201137032 U CN2010201137032 U CN 2010201137032U CN 201020113703 U CN201020113703 U CN 201020113703U CN 201615086 U CN201615086 U CN 201615086U
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- pump
- bearing
- impeller
- cover
- component cooling
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Abstract
The utility model relates to a component cooling water pump of a nuclear power station of a pressurized water reactor. The component cooling water pump comprises a pump body, an impeller, an impeller nut, an anti-loosing chuck, a pump cover, a shaft sleeve, a sealing part, a bearing frame, a bearing, a bearing end cover and a pump shaft and is characterized in the bearing frame is connected with the pump cover; the pump cover is connected with the pump body; the bearing frame and supporting legs are cast into one; a reinforcing rib plate is arranged between a volute housing of the pump body and an inlet flange; a throat bush is sheathed and connected between the inner wall of the pump cover and the outer wall of the shaft sleeve; the bearing is sealed by adopting the mechanical oil sealing structure; the impeller is positioned by the impeller nut and is also positioned in an anti-loosing way by the anti-loosing chuck; and a current stabilization part is additionally arranged at a pump inlet. The component cooling water pump has the characteristics of stable operational performance, convenient maintenance and replacement, strong overall earthquake resistance, good sealing property and the like and is applicable to the working requirement of the working environment of the nuclear power station.
Description
Affiliated technical field the utility model relates to a kind of horizontal centrifugal pump, the component cooling pump that especially a kind of voltage supply water-water reactor nuclear power station uses.
Background technique is present, and conventional component cooling pump can't satisfy the requirement of nuclear power station working environment, and tracing it to its cause, mainly there are the following problems: the intensity at pump case pressure-bearing position and the anti-seismic performance of bearing bracket stand can not satisfy the specific (special) requirements of working environment; The protection structure is undesirable, is prone to the situation that oil leakage and extraneous medium immerse; Impeller nut does not have anti-loose structure, can not prevent that impeller is loosening, does not have the pump shaft safeguard structure yet.
The summary of the invention the purpose of this utility model is to provide a kind of can satisfy nuclear pump work environmental requirement and stable performance, pressurized-water reactor nuclear power plant component cooling pump that Security is good.
For achieving the above object, the pressurized-water reactor nuclear power plant component cooling pump that the utility model provides comprises the pump housing, impeller, impeller nut, locking chuck, pump cover, protective shaft sleeve, sealed member, bearing bracket stand, bearing, bearing (ball) cover, pump shaft; Wherein bearing bracket stand is to be solidly connected with pump cover, and pump cover is connected with the pump housing again, and bearing bracket stand and leg are cast into one, is provided with the reinforcement gusset between pump housing spiral case and the inlet flange; Throat's lining is socketed between pump cover inwall and the axle sleeve outer wall; The machinery oil seal structure is adopted in bearing seal; Impeller adopts the impeller nut location, and by the locking location of locking chuck; Pump intake is set up the current stabilization parts.
After adopting said structure,, be provided with the reinforcement gusset between pump housing spiral case and the inlet flange, improved the whole shock resistance of pump because bearing bracket stand is cast into one with linkage structure, bearing bracket stand and the leg that pump cover, pump cover contact with pump housing employing face.Add dismountable throat lining between pump cover and the axle sleeve, play the effect of throttling, and change conveniently.The machinery oil seal structure is adopted in bearing seal, can prevent effectively that lubricant oil in the bearing from overflowing and the entering of external impurities, and improved the working life of bearing.Impeller adopts the impeller nut location, and adopts stop pin and impeller location by locking chuck, and presses the six side peripheries that are coated on impeller nut by striking, and can play good locking effect.Pump intake is set up the current stabilization parts of being made up of abutted flange and barretter in the use, and abutted flange one end is connected by flange with the pump housing, and the other end links to each other with barretter, and the other end of barretter is connected with user's pipeline.
Characteristics of the present utility model are: stable performance, and reliable, simple in structure, maintenance and replacing accessory are convenient, and whole anti-seismic performance is strong, can satisfy the specific (special) requirements of pressurized-water reactor nuclear power plant working environment.
Description of drawings Fig. 1 is the subdivision schematic representation of the utility model pressurized-water reactor nuclear power plant component cooling pump.
Embodiment such as Fig. 1 show, the utility model pressurized-water reactor nuclear power plant component cooling pump comprises puts clean interface 1, the pump housing 2, impeller 3, impeller nut 4, locking chuck 5, protective shaft sleeve 6, pump cover 7, throat's lining 8, sealed member 9, fore bearing end cap 10, mechanical oil sealing 11, fore bearing 12, bearing bracket stand 13, rear bearing 14, rear bearing end cap 15, pump shaft 16, wherein bearing bracket stand 13 links with the pump housing 2 with pump cover 7 bindings, pump cover 7 again, bearing bracket stand and leg are cast into one, are provided with the reinforcement gusset between pump housing spiral case and the inlet flange; Throat's lining 8 is socketed between pump cover inwall and the axle sleeve outer wall; The machinery oil seal structure is adopted in bearing seal; The impeller nut 4 that will be arranged at pump shaft one end by locking chuck 5 is connected with impeller 3.The utility model is all strengthened at housing, bearing bracket, and the center of gravity of pump, pump shaft height descend, and has improved the shock resistance of pump integral body.The pump housing 2 below is provided with and drains interface 1, can guarantee pump working medium in the emptying pump chamber when outage state; Simultaneously pump housing leg has been done reinforcing rib design.Pump cover 7 adopts the orientation type of metal covering to metal covering with the pump housing 2, and Location accuracy is higher, has strengthened the assembly precision and the stability of pump.Bearing bracket stand 13 is considered the requirement of shockproof requirements and unit mechanical property guarantee value, and leg and bearing bracket stand design is as a whole, has guaranteed favorable rigidity, has improved shock resistance.On bearing used, fore bearing 12 adopted roller bearing; Rear bearing 14 adopts a pair of angular contact ball bearing, but radial force and residual axial force that bearing pump produces.In bearing seal, used well behaved mechanical oil sealing 11 sealings at the fore bearing end cap 10 and rear bearing end cap 15 outsides, this oil sealing can well prevent the leakage of lubricant oil and the cleaning of protection lubricant oil.Sealed member 9 adopts integrated mechanical sealings, and this sealed member can be whole carries out dismounting and change, easy to maintenance.Add dismountable throat lining between pump cover 7 and the protective shaft sleeve 6, play the effect of throttling, after wearing and tearing, can easily change.It is locking that locking chuck 5 bindings are installed between impeller nut 4 and the impeller 3, and locking chuck 5 adopts stop pins and impeller 3 location, and be coated on impeller nut six sides place by striking to press, and can play good locking effect.The inlet of the utility model pressurized-water reactor nuclear power plant component cooling pump has been set up the current stabilization parts of being made up of abutted flange and barretter in the use, abutted flange one end is connected by flange with the pump housing, the other end links to each other with barretter, and the other end of barretter is connected with user's pipeline.Barretter is used for eliminating the circular rector of inlet medium, plays the effect of current stabilization.Because the existence of current stabilization parts, the overall performance of pump has obtained good lifting, makes pump have service requirement more stably.
Claims (1)
1. pressurized-water reactor nuclear power plant component cooling pump, comprise the pump housing, impeller, impeller nut, locking chuck, pump cover, axle sleeve, sealed member, bearing bracket stand, bearing, bearing (ball) cover, pump shaft, it is characterized in that: bearing bracket stand and pump cover link, pump cover links with the pump housing again, bearing bracket stand and leg are cast into one, are provided with the reinforcement gusset between pump housing spiral case and the inlet flange; Throat's lining is socketed between pump cover inwall and the axle sleeve outer wall; The machinery oil seal structure is adopted in bearing seal; Impeller adopts the impeller nut location, and by the locking location of locking chuck; Pump intake is set up the current stabilization parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201137032U CN201615086U (en) | 2010-02-11 | 2010-02-11 | Component cooling water pump of nuclear power station of pressurized water reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201137032U CN201615086U (en) | 2010-02-11 | 2010-02-11 | Component cooling water pump of nuclear power station of pressurized water reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615086U true CN201615086U (en) | 2010-10-27 |
Family
ID=43001455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201137032U Expired - Fee Related CN201615086U (en) | 2010-02-11 | 2010-02-11 | Component cooling water pump of nuclear power station of pressurized water reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615086U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143448A1 (en) * | 2012-03-27 | 2013-10-03 | 上海阿波罗机械股份有限公司 | Residual heat removal pump for nuclear power plant |
| CN103821755A (en) * | 2014-03-06 | 2014-05-28 | 大连深蓝泵业有限公司 | Normal afterheat discharging pump for third-generation AP1000 advanced pressurized water reactor nuclear power station |
| CN106246603A (en) * | 2016-10-18 | 2016-12-21 | 广州九陌机电设备有限公司 | A kind of water pump |
-
2010
- 2010-02-11 CN CN2010201137032U patent/CN201615086U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143448A1 (en) * | 2012-03-27 | 2013-10-03 | 上海阿波罗机械股份有限公司 | Residual heat removal pump for nuclear power plant |
| CN103821755A (en) * | 2014-03-06 | 2014-05-28 | 大连深蓝泵业有限公司 | Normal afterheat discharging pump for third-generation AP1000 advanced pressurized water reactor nuclear power station |
| CN106246603A (en) * | 2016-10-18 | 2016-12-21 | 广州九陌机电设备有限公司 | A kind of water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Cuiping Document name: Review of business letter |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20180211 |