CN203225616U - 600MW nuclear power conventional island auxiliary generator seal oil system - Google Patents
600MW nuclear power conventional island auxiliary generator seal oil system Download PDFInfo
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- CN203225616U CN203225616U CN 201320061651 CN201320061651U CN203225616U CN 203225616 U CN203225616 U CN 203225616U CN 201320061651 CN201320061651 CN 201320061651 CN 201320061651 U CN201320061651 U CN 201320061651U CN 203225616 U CN203225616 U CN 203225616U
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Abstract
The utility model relates to a 600MW nuclear power conventional island auxiliary generator seal oil system. The 600MW nuclear power conventional island auxiliary generator seal oil system comprises an air-side oil pump, a hydrogen-side oil pump, an air-side cooler, a hydrogen-side cooler, an air-side filter, a hydrogen-side filter, a differential pressure valve, an oil sealing tank, a circulation oil tank, and a balance valve. While the generator is powered on and operated, the seal oil control system is used to seal hydrogen inside the generator at a seal ring disposed at the generator shaft end, in order to allow the machine set to operate safely and stably. The 600MW nuclear power conventional island auxiliary generator seal oil system is invented based on design and operation experiences of the conventional machine sets of our company for years, and meets the requirements of reliability and safety by nuclear power stations.
Description
Technical field: the utility model relates to a kind of 600MW level nuclear power conventional island generator subsidiary engine sealing oil system.
Background technology: the subsidiary engine sealing oil system is one of nuclear power conventional island generator unit important component part, and can the stability of its operation and reliability are directly connected to generator safe and stable operation.Present sealing oil system, the control of oil filtering accuracy is bigger,, stable operation long-term to sealing bearing bush has certain influence, surpass design load as generator sealing bearing bush and alternator shaft gap, when guaranteeing that hydrogen oil pressure difference is rated value, need a large amount of sealing oil flows, but it is big that the oily flow of sealing oil system can infinitely not become, after sealing bearing bush and rotating shaft gap were increased to certain value, it was poor to set up specified hydrogen oil pressure, the hydrogen accident can occur leaking.Hydrogen is explosive hazardous gas, and consequent harm is very big.Novel seal oil system employing filtering accuracy of the present invention is 10 microns filter, but on-line maintenance is reliable to oily precision control, guarantees that system is stable.In addition, former sealing oil system is equipped with and mends, the oil extraction valve, is the valve plug fit structure, when sealing oil system moves, as containing impurity in the oil, valve plug often occurs and blocks, and can't realize automatic benefit, the oil extraction function of fuel tank.Can produce the high and low fault of fuel level in tank thus.If fuel level in tank is low excessively, even oil-break, will directly cause the oil pump fault, cause system-down, generating set can't operate as normal; If oil level is too high, fluid will rise to generator inside, influence generator and normally move, and cause generator outage when serious, therefore research and develop a kind of stable performance, reliable benefit, oil extraction valve, and the novel seal oil system of change original structure defective is extremely urgent.
Summary of the invention:
The purpose of this utility model provides a kind of interior hydrogen of generator that prevents and overflows, and prevents that again air and moisture from entering generator inside simultaneously; Keeping hydrogen oil pressure difference is rated value, and continuous monitoring hydrogen oil pressure is poor, makes the 600MW level nuclear power conventional island generator subsidiary engine sealing oil system of unit safety stable operation.The technical solution of the utility model is:, this system is by empty lateral oil pump (1), hydrogen side oil pump (2), empty side cooler (3), hydrogen side cooler (4), empty side filter (5), hydrogen side filter (6), valve for pressure difference (7), oil seal housing (8), circulation fuel tank (9), balanced valve (10) is formed, circulation fuel tank (9) is empty side seal oil return line storage fluid, the oil part that empty lateral oil pump (1) comes out enters the generator sealing bearing bush through empty side cooler (3) and empty side filter (5), a part turns back to empty lateral oil pump (1) entrance through valve for pressure difference (7), it is rated value that the empty side input pressure of valve for pressure difference (7) control is higher than the generator internal gas pressure, oil seal housing (8) is hydrogen-side seal oil loop storage fluid, the oil part that hydrogen side oil pump (2) comes out enters the generator sealing bearing bush through hydrogen side cooler (4) and hydrogen side filter (6), vapour at the hydrogen-side seal oil in-line, encourage two ends the charge oil pressure that a balanced valve (10) is controlled the hydrogen-side seal oil system respectively has been installed, balanced valve (10) is got sky side and hydrogen-side seal oil pressure, keeps the empty lateral pressure of generator and hydrogen lateral pressure balance by compensation flap.
The major function of 600MW level nuclear power conventional island generator subsidiary engine sealing oil system has: send alarm signal when unusual service condition takes place.This 600MW level nuclear power conventional island generator subsidiary engine sealing oil system is to invent according to my company's conventional unit design and running experience for many years, this system satisfies nuclear power station to the requirement of reliability, fail safe, it has remedied the deficiency of traditional subsidiary engine sealing oil system, it is mainly reflected in following several respects: the sealing oil system designs, makes, tests and use based on the requirement of nuclear power quality assurance system, and the assurance system is safer, reliable at running; Sealing oil system adopts high-precision filter, effectively controls oil quality, prevents the sealing bearing bush wearing and tearing; The tank float valve uses the new construction mode, effectively prevents because the fault that the bite that fluid impurity causes and fuel tank can't be worked; Increase sealing oil cooler design capacity, satisfy the full operating mode operation of generator, and guaranteed the stability of summer condition operation; Sealing oil system collection assembling device is simple in structure, is convenient to install, safeguards, overhauls.It is ripe that the present invention has system design, and security of operation, characteristics such as reliable satisfy the requirement of using fully under this particular field of nuclear power station.
Description of drawings
Fig. 1 is 600MW level nuclear power conventional island generator subsidiary engine sealing oil system flow chart
Embodiment
As shown in Figure 1, a kind of 600MW grade nuclear power station conventional island generator subsidiary engine sealing oil system, by empty lateral oil pump 1, hydrogen side oil pump 2, empty side cooler 3, hydrogen side cooler 4, empty side filter 5, hydrogen side filter 6, valve for pressure difference 7, oil seal housing 8, circulation fuel tank 9, balanced valve 10 is formed, the generator sealing oil system is the minim gap inside between alternator shaft and sealing bearing bush, form a stable high pressure oil film, make the pressure of this oil film greater than the Hydrogen Vapor Pressure of generator inside, and guarantee that this oil hydrogen pressure difference is rated value, so, guarantee that generator can stable operation, generate electricity by way of merging two or more grid systems.According to the characteristics of sealing oil system, design empty side seal oil return line respectively, the hydrogen-side seal oil loop.By empty lateral oil pump 1, the work of hydrogen side oil pump 2 is transported to sky side cooler 3, hydrogen side cooler 4 and empty side filter 5, hydrogen side filter 6 with the pressure oil that forms.During through empty side cooler 3, hydrogen side cooler 4, carry out and the cooling water heat exchange, guarantee that sealing oil oil temperature is rated designs value scope.Filter through empty side filter 5 and hydrogen side filter 6, guarantee that the oil of sealing oil system satisfies requirement of system design.And through valve for pressure difference 7, the work of balanced valve 10 finally at alternator shaft and sealing bearing bush place, forms a stable high pressure oil film.Oil seal housing 8 is hydrogen-side seal oil loop storage fluid, and circulation fuel tank 9 is empty side seal oil return line storage fluid.
The sealing oil system requires design based on the nuclear power quality assurance system, makes test and application.Sealing oil filter filtering accuracy is 300 orders, guarantees the cleaning that enters sealing bearing bush fluid.Adopt the high float valve of reliability, effectively guarantee fuel level in tank.Taking into account system application region and summer condition, the oil cooler heat exchange area is all done raising.The oil apparatus structure is simple, is convenient to operation, safeguards.
Claims (1)
1. 600MW level nuclear power conventional island generator subsidiary engine sealing oil system, it is characterized in that: this system is by empty lateral oil pump (1), hydrogen side oil pump (2), empty side cooler (3), hydrogen side cooler (4), empty side filter (5), hydrogen side filter (6), valve for pressure difference (7), oil seal housing (8), circulation fuel tank (9), balanced valve (10) is formed, circulation fuel tank (9) is empty side seal oil return line storage fluid, the oil part that empty lateral oil pump (1) comes out enters the generator sealing bearing bush through empty side cooler (3) and empty side filter (5), a part turns back to empty lateral oil pump (1) entrance through valve for pressure difference (7), it is rated value that the empty side input pressure of valve for pressure difference (7) control is higher than the generator internal gas pressure, oil seal housing (8) is hydrogen-side seal oil loop storage fluid, the oil part that hydrogen side oil pump (2) comes out enters the generator sealing bearing bush through hydrogen side cooler (4) and hydrogen side filter (6), vapour at the hydrogen-side seal oil in-line, encourage two ends the charge oil pressure that a balanced valve (10) is controlled the hydrogen-side seal oil system respectively has been installed, balanced valve (10) is got sky side and hydrogen-side seal oil pressure, keeps the empty lateral pressure of generator and hydrogen lateral pressure balance by compensation flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061651 CN203225616U (en) | 2013-02-04 | 2013-02-04 | 600MW nuclear power conventional island auxiliary generator seal oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061651 CN203225616U (en) | 2013-02-04 | 2013-02-04 | 600MW nuclear power conventional island auxiliary generator seal oil system |
Publications (1)
| Publication Number | Publication Date |
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| CN203225616U true CN203225616U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320061651 Expired - Fee Related CN203225616U (en) | 2013-02-04 | 2013-02-04 | 600MW nuclear power conventional island auxiliary generator seal oil system |
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| CN (1) | CN203225616U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196576A (en) * | 2014-09-01 | 2014-12-10 | 大唐保定热电厂 | Sealing oil system of hydrogen cooling turbine generator unit |
| CN104712379A (en) * | 2015-03-31 | 2015-06-17 | 哈尔滨电机厂有限责任公司 | Manufacturing technological method for turbonator auxiliary engine sealing oil device |
| CN109713846A (en) * | 2019-01-11 | 2019-05-03 | 中广核工程有限公司 | A kind of stream ring sealing oil system of generator of nuclear power station three and its empty side seal oil return line |
| CN114354179A (en) * | 2021-12-30 | 2022-04-15 | 哈尔滨哈控实业有限公司 | Balance valve testing system and method |
-
2013
- 2013-02-04 CN CN 201320061651 patent/CN203225616U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196576A (en) * | 2014-09-01 | 2014-12-10 | 大唐保定热电厂 | Sealing oil system of hydrogen cooling turbine generator unit |
| CN104196576B (en) * | 2014-09-01 | 2015-11-25 | 大唐保定热电厂 | Hydrogen-cooled steam turbine power generation group sealing oil system |
| CN104712379A (en) * | 2015-03-31 | 2015-06-17 | 哈尔滨电机厂有限责任公司 | Manufacturing technological method for turbonator auxiliary engine sealing oil device |
| CN109713846A (en) * | 2019-01-11 | 2019-05-03 | 中广核工程有限公司 | A kind of stream ring sealing oil system of generator of nuclear power station three and its empty side seal oil return line |
| CN114354179A (en) * | 2021-12-30 | 2022-04-15 | 哈尔滨哈控实业有限公司 | Balance valve testing system and method |
| CN114354179B (en) * | 2021-12-30 | 2023-09-26 | 哈尔滨哈控实业有限公司 | Balance valve testing system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20131002 Termination date: 20190204 |