CN203394838U - Industrial pump for nuclear power station - Google Patents
Industrial pump for nuclear power station Download PDFInfo
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- CN203394838U CN203394838U CN201320497678.6U CN201320497678U CN203394838U CN 203394838 U CN203394838 U CN 203394838U CN 201320497678 U CN201320497678 U CN 201320497678U CN 203394838 U CN203394838 U CN 203394838U
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- pump
- bearing
- free end
- nuclear power
- power station
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Abstract
The utility model relates to an industrial pump for a nuclear power station. The industrial pump for the nuclear power station comprises a pump body, a pump cover and a pump shaft, wherein an impeller and a shaft sleeve are sleeved at the outer surface of the pump shaft; the pump body is arranged below the pump shaft; the pump cover is arranged above the pump shaft; a dual-suction ring is arranged between the pump body and the pump cover; seal assemblies are respectively arranged at two sides of the pump body; a drive end bearing assembly and a free end bearing assembly are respectively arranged at two ends of the pump shaft. By adopting the industrial pump for the nuclear power station, the remaining problem of the industrial pump in a nuclear power plant for a plurality of years is solved; not only can the demands on pump performances be met, but also the vibration and the stabilization of the system are greatly improved; the industrial pump for the nuclear power station is widely applied to the nuclear power station.
Description
Technical field
The utility model relates to a kind of industrial water pump, particularly relates to a kind of used in nuclear power station industrial pump.
Background technique
In prior art, in used in nuclear power station industrial water pump running, occur that unit operation is unstable, pump housing corrosive wear situation is larger, especially in stuffing box position.Because equipment filler in service often leaks, be mainly manifested in packing cavity two ends and still use general braiding packing, axle sleeve is existed compared with galling, when axle sleeve may wear to a certain degree, just easily from gland, there is the leakage of medium and the leakage of muddy packing itself, poorly sealed, water dumping defect frequently occurs, need frequent additional fillers, increase maintenance cost, reduced the reliability of equipment, to device security, brought major hidden danger, be unfavorable for the stable operation of power plant, also to service work, bring immense pressure simultaneously.
On the whole, there are some following shortcomings in muddy packing sealing: owing to using braiding packing, cause frictional power loss larger, reduce pump efficiency, increase the loss of electric energy; Normal axle sleeve serious wear in service must be changed when overhaul; Service cycle is short, at run duration, often will adjust.
Model utility content
The utility model, for above-mentioned problems of the prior art, provides a kind of used in nuclear power station industrial pump, has solved in prior art unit operation unstable, the problem that pump housing corrosive wear situation is larger.
The technical solution of the utility model is as follows:
Comprise the pump housing, pump cover and pump shaft, outer surface shrunk-on disc and the axle sleeve of pump shaft, the below of pump shaft arranges the pump housing, and the top of pump shaft arranges pump cover, between the pump housing and pump cover, is provided with double-suction-port ring; The both sides of the pump housing are respectively equipped with black box, and the two ends of pump shaft are respectively equipped with drive end axle bearing assembly and free end shaft bearing assembly.
Described drive bearing assembly comprises driving bearing body, driving bearing and driving bearing lid, driving bearing is fixed on pump shaft, driving bearing is fixedly connected with the pump housing through driving bearing body, and driving bearing lid is connected with driving bearing external diameter the inner and driving bearing body respectively; Between driving bearing and pump shaft, disc is set, between driving bearing lid and pump shaft, seal ring is set.
Described free end shaft bearing assembly comprises free end bearing body, free end bearing and free end bearing lid, free end bearing is fixed on pump shaft, free end bearing is fixedly connected with the pump housing through free end bearing body, and free end bearing lid is connected with free end bearing external diameter the inner and free end bearing body respectively; Between free end bearing and pump shaft, disc is set, between free end bearing lid and pump shaft, seal ring is set; Bearing gland is connected with free end bearing lid with free end bearing body, and free end bearing is connected with thrust-bearing in one end of closing on bearing gland.
Described driving bearing and free end bearing all adopt rolling bearing.
Described black box is, on the periphery wall of mechanical seal sleeve, mechanical sealing element is set, the end of mechanical sealing element is provided with mechanical seal cover, mechanical sealing element connects flushing pipe, flushing line is embedded in the lifting gusset of pump cover both sides, lifting gusset inside is provided with the Kong，Liang hole crossover location crossing one another flow controller is installed.
Described mechanical sealing element adopts ready-package mechanical seal.
Described intersection two holes are mutually vertical.
The described pump housing adopts and lengthens diaphragm coupling connection motor.
The described pump housing and motor adopt common base.
The described pump housing is in single-stage, double suction, level, to open horizontal layout.
The utility model has the advantages of as follows:
1, reliable in structure, performance meets design requirement.
2, mechanical seal is reliable, can not leak; Long service life, service cycle extends, and uses manpower and material resources sparingly.
3, axle sleeve can not wear and tear, and can not produce friction, saving power.
4, cast inblock common base, avoids unit back-grouting, saves manpower, shortens installation period; Reduce unit vibration, increase system rigidity and stability, Site for Unit operation detects, and unit vibration value is only 1.0mm/s, considerably beyond reference value.
5, sealflush the flushing that pipeline had both guaranteed mechanical seal, increase again the rigidity of pump, not only reliably but also practical.
In sum, the utility model has solved nuclear power plant's problem that for many years industrial water pump is left over, and not only meets the requirement of pump performance, to the vibration of system and stable improving a lot, is widely used in nuclear power station simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, the pump housing, 2, pump cover, 3, double-suction-port ring, 4, impeller, 5, pump shaft, 6, axle sleeve, 7, driving bearing body, 8, driving bearing lid, 9, driving bearing, 10, seal ring, 11, free end bearing body, 12, free end bearing lid, 13, thrust-bearing, 14, disc, 15, bearing gland, 16, mechanical sealing element, 17, flushing line, 18, flow controller, 19, lifting gusset, 20, mechanical seal cover, 21, mechanical seal sleeve, 22, free end bearing.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, describe the utility model in detail.
Embodiment
As shown in Figure 1, the pump housing 1 is for opening horizontal layout in single-stage, double suction, level, and the pump housing 1 adopts and lengthens diaphragm coupling connection motor, and the pump housing 1 adopts common base with motor.
The outer surface shrunk-on disc 4 of pump shaft 5 and axle sleeve 6, the below of pump shaft 5 arranges the pump housing 1, and the top of pump shaft 5 arranges pump cover 2, between the pump housing 1 and pump cover 2, is provided with double-suction-port ring 3; The both sides of the pump housing 1 are respectively equipped with black box, and the two ends of pump shaft 5 are respectively equipped with drive end axle bearing assembly and free end shaft bearing assembly.
Described drive bearing assembly comprises driving bearing body 7, drives rolling bearing 9 and driving bearing lid 8, drive rolling bearing 9 to be fixed on pump shaft 5, drive rolling bearing 9 to be fixedly connected with the pump housing 1 through driving bearing body 7, driving bearing lid 8 is connected with driving rolling bearing 9 external diameter the inners and driving bearing body 7 respectively; Drive between rolling bearing 9 and pump shaft 5 disc 14 is set, between driving bearing lid 8 and pump shaft 5, seal ring 10 is set.
Described free end shaft bearing assembly comprises free end bearing body 11, free end rolling bearing 22 and free end bearing lid 12, free end rolling bearing 22 is fixed on pump shaft 5, free end rolling bearing 22 is fixedly connected with the pump housing 1 through free end bearing body 11, and free end bearing lid 12 is connected with free end rolling bearing 22 external diameter the inners and free end bearing body 11 respectively; Between free end rolling bearing 22 and pump shaft 5, disc 14 is set, between free end bearing lid 12 and pump shaft 5, seal ring 10 is set; Bearing gland 15 is connected with free end bearing lid 12 with free end bearing body 11, and free end rolling bearing 22 is connected with thrust-bearing 13 in one end of closing on bearing gland.
Industrial water pump rotor is to rely on to be positioned to drive rolling bearing and free end rolling bearing to support, and drives rolling bearing and free end rolling bearing to adopt disc selflubricating, and driving rolling bearing and free end rolling bearing cooling water is normal temperature industry water or tap water.The thrust-bearing of free end rolling bearing configuration can absorb the axial force of twocouese.Pump rotor is fixed on its axial position.End thrust that can not complete equilibrium absorbs by thrust-bearing.The design of this bearing has enough safety coefficient.Thrust-bearing is also to use lubricant oil.
Described black box is, ready-package mechanical sealing element 16 is set on the periphery wall of mechanical seal sleeve 21, mechanical sealing element 16 end is provided with mechanical seal cover 20, mechanical sealing element connects flushing pipe 17, and flushing line is embedded in the lifting gusset 19 of pump cover both sides, and lifting gusset inside is provided with mutually perpendicular hole, directly pass in mechanical seal cavity, for controlling intersection vertical position, washing water quantity ，Liang hole, flow controller 18 is installed, by pump discharge, by flow controller, is directly rinsed mechanical seal.The two ends of the pump housing adopt ready-package mechanical seal, effectively prevent that air from entering or pumping liquid oozes out, and closed chamber consists of the pump housing 1, pump cover 1, mechanical seal cover 20, mechanical seal sleeve 21 and sealed member, by pump discharge liquid, sealing are rinsed.Not only solved the problem of sealflushing, simultaneously two gussets have increased again the intensity of pump cover, and two gussets are arranged symmetrically with, and have bored respectively erection opening on gusset, to lift pump cover during installation and removal, at one stroke multiplex.
Between the pump housing and motor, adopt to lengthen diaphragm coupling and connect, be convenient to the maintenance of pump.This coupling transmitting torque scope is large, and mechanical property is good, easy to loading and unloading, less demanding to installation precision, has embodied a concentrated reflection of the advantage of flexible coupling.
For guaranteeing shock resistance and the stability of unit, Pump and Electromotor adopts common base, and base is cast inblock structure, material is HT200, and pts wt reaches 2000Kg, in the situation that utilizing former basis, avoid back-grouting, the installation period greatly shortening, saved a large amount of manpower and materials.
The utility model performance parameter is as follows: flow is 1080 m3/h, and lift is 55m, and efficiency is 78 %, and rotating speed is 1470 r/min, and air horsepower is 207 kw, and wearing power of motor is 250KW, 6KV.
Claims (10)
1. used in nuclear power station industrial pump, comprises the pump housing, pump cover and pump shaft, outer surface shrunk-on disc and the axle sleeve of pump shaft, and the below of pump shaft arranges the pump housing, and the top of pump shaft arranges pump cover, between the pump housing and pump cover, is provided with double-suction-port ring; The both sides that it is characterized in that the pump housing are respectively equipped with black box, and the two ends of pump shaft are respectively equipped with drive end axle bearing assembly and free end shaft bearing assembly.
2. used in nuclear power station industrial pump according to claim 1, it is characterized in that described drive bearing assembly comprises driving bearing body, driving bearing and driving bearing lid, driving bearing is fixed on pump shaft, driving bearing is fixedly connected with the pump housing through driving bearing body, and driving bearing lid is connected with driving bearing external diameter the inner and driving bearing body respectively; Between driving bearing and pump shaft, disc is set, between driving bearing lid and pump shaft, seal ring is set.
3. used in nuclear power station industrial pump according to claim 1, it is characterized in that described free end shaft bearing assembly comprises free end bearing body, free end bearing and free end bearing lid, free end bearing is fixed on pump shaft, free end bearing is fixedly connected with the pump housing through free end bearing body, and free end bearing lid is connected with free end bearing external diameter the inner and free end bearing body respectively; Between free end bearing and pump shaft, disc is set, between free end bearing lid and pump shaft, seal ring is set; Bearing gland is connected with free end bearing lid with free end bearing body, and free end bearing is connected with thrust-bearing in one end of closing on bearing gland.
4. according to the used in nuclear power station industrial pump described in claim 2 or 3, it is characterized in that described driving bearing and free end bearing all adopt rolling bearing.
5. used in nuclear power station industrial pump according to claim 1, it is characterized in that described black box is, on the periphery wall of mechanical seal sleeve, mechanical sealing element is set, the end of mechanical sealing element is provided with mechanical seal cover, mechanical sealing element connects flushing pipe, flushing line is embedded in the lifting gusset of pump cover both sides, and lifting gusset inside is provided with the Kong，Liang hole crossover location crossing one another flow controller is installed.
6. used in nuclear power station industrial pump according to claim 5, is characterized in that described mechanical sealing element adopts ready-package mechanical seal.
7. used in nuclear power station industrial pump according to claim 5, is characterized in that described intersection two holes are mutually vertical.
8. used in nuclear power station industrial pump according to claim 1, is characterized in that the described pump housing adopts lengthening diaphragm coupling to connect motor.
9. used in nuclear power station industrial pump according to claim 8, is characterized in that the described pump housing and motor adopt common base.
10. used in nuclear power station industrial pump according to claim 1, is characterized in that the described pump housing is in single-stage, double suction, level, to open horizontal layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497678.6U CN203394838U (en) | 2013-08-15 | 2013-08-15 | Industrial pump for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497678.6U CN203394838U (en) | 2013-08-15 | 2013-08-15 | Industrial pump for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394838U true CN203394838U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320497678.6U Expired - Lifetime CN203394838U (en) | 2013-08-15 | 2013-08-15 | Industrial pump for nuclear power station |
Country Status (1)
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| CN (1) | CN203394838U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251215A (en) * | 2014-09-24 | 2014-12-31 | 沈阳启源工业泵制造有限公司 | Asynchronous transmission multistage centrifugal pump |
| CN106351845A (en) * | 2016-11-17 | 2017-01-25 | 上海阿波罗机械股份有限公司 | CAP1400 nuclear power plant spent fuel pool cooling pump |
| 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 |
| CN107829972A (en) * | 2017-09-06 | 2018-03-23 | 武汉船用机械有限责任公司 | A kind of Cargo Oil Pump |
| CN112814919A (en) * | 2020-12-31 | 2021-05-18 | 沈阳鼓风机集团核电泵业有限公司 | Equipment cooling water pump for 1400MW nuclear power unit |
-
2013
- 2013-08-15 CN CN201320497678.6U patent/CN203394838U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251215A (en) * | 2014-09-24 | 2014-12-31 | 沈阳启源工业泵制造有限公司 | Asynchronous transmission multistage centrifugal pump |
| CN106351845A (en) * | 2016-11-17 | 2017-01-25 | 上海阿波罗机械股份有限公司 | CAP1400 nuclear power plant spent fuel pool cooling pump |
| 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 |
| CN107829972A (en) * | 2017-09-06 | 2018-03-23 | 武汉船用机械有限责任公司 | A kind of Cargo Oil Pump |
| CN107829972B (en) * | 2017-09-06 | 2019-11-08 | 武汉船用机械有限责任公司 | A kind of Cargo Oil Pump |
| CN112814919A (en) * | 2020-12-31 | 2021-05-18 | 沈阳鼓风机集团核电泵业有限公司 | Equipment cooling water pump for 1400MW nuclear power unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110027 3-1, No. 7, No. seven, Shenyang economic and Technological Development Zone, Liaoning, China Patentee after: SHENYANG SANKE NUCLEAR EQUIPMENT MANUFACTURE CO.,LTD. Address before: 110027 3-1, No. 7, No. seven, Shenyang economic and Technological Development Zone, Liaoning, China Patentee before: SHENYANG SANKE HYDRAULIC MACHINERY MANUFACTORY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |