CN202948744U - Water supply system adopting once-through steam generator reactor - Google Patents
Water supply system adopting once-through steam generator reactor Download PDFInfo
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- CN202948744U CN202948744U CN2012205417385U CN201220541738U CN202948744U CN 202948744 U CN202948744 U CN 202948744U CN 2012205417385 U CN2012205417385 U CN 2012205417385U CN 201220541738 U CN201220541738 U CN 201220541738U CN 202948744 U CN202948744 U CN 202948744U
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- water supply
- feedwater
- pipe group
- steam generator
- once
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Abstract
The utility model belongs to the field of a nuclear reactor and particularly relates to a water supply system adopting a once-through steam generator reactor. The water supply system comprises a water supply pipe group, a water supply adjusting station with one end connected with the water supply pipe group and a water feeding pipe group with one end connected with the other end of the water supply adjusting station. The other end of the water supply pipe group is connected with a water supply pipeline of a once-through steam generator, and a main water supply pump is arranged on the water supply pipe group. Flow quantity and pressure of water supply can be controlled together by adjusting rotation speed and inlet steam quantity of a water supply pump of a pneumatic water supply pump and by adjusting opening degree of a main water supply adjusting valve. The water supply adjusting station directly controls total flow quantity of water supplied to the once-through steam generator, system configuration and control are simplified, and a water supply isolating valve can isolate water fast under an accidental working condition.
Description
Technical field
The invention belongs to nuclear reactor field, be specifically related to a kind of a kind of water supply system that adopts the once through steam generator reactor that is applicable to.
Background technology
The steam generator of nuclear power station employing both at home and abroad mostly is natural circulation steam generator at present, and in natural circulation steam generator, secondary side moves with natural circulation mode, and feedwater is heated to form steam within the ascent stage; Steam generator secondary side has certain hydrosolvent, only need control steam generator water level well, just can regulate according to the needs of secondary circuit the output of heap power and steam.And in once through steam generator, secondary side is to adopt forced circulation to flow through its heat exchanging part to produce steam, and feedwater flow and pressure directly affect steam quality and output.Therefore, the characteristic of once through steam generator is had higher requirement to the performance of water supply system.
But, once through steam generator has that volume is little, lightweight, efficient advantage, many small-sized DC steam generators are placed in reactor pressure vessel, and it is integrated that realization response is piled, and is conducive to improve security, reliability, compact and the advance of reactor assembly.Therefore, the Novel small-sized heap has adopted once through steam generator mostly at present.In order to satisfy once through steam generator to the requirement of the pressure of feedwater flow and pressure, configured corresponding water supply system.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can satisfy the reactor that adopted once through steam generator to the water supply system of the requirement of feedwater flow and pressure,
In order to realize purpose of the present invention, by the following technical solutions, a kind of water supply system that adopts the once through steam generator reactor, comprise, the station is regulated in the feedwater that feed pipe group, an end are connected with described feed pipe group, an end regulates with feedwater the feed pipe group that the station other end is connected, the other end of described feed pipe group is connected with the once through steam generator supply line, is provided with main feed pump on described feed pipe group.
Further described feedwater adjusting station comprises main feedwater adjustable pipe and bypass feedwater adjustable pipe, and an end of standing away from the feedwater adjusting of described main feedwater adjustable pipe and bypass feedwater adjustable pipe is connected to described feed pipe group; Be provided with variable valve on main feedwater adjustable pipe and bypass feedwater adjustable pipe.
Further described feed pipe group comprises the pipeline of two parallel connections, and an end of regulating the station away from feeding water of these two parallel pipelines is connected with the sender property outlet of feed-water deaerator system.
Further the feed pipe group comprises the pipeline of two parallel connections, these two parallel pipelines an end of regulating the station away from feedwater be connected with the supply line of once through steam generator.
Further described main feed pump is multistage centrifugal steam-operating speed-variable pump.
The present invention has following technique effect:
(1) normal power run duration, for guaranteeing that once through steam generator secondary side outlet steam is certain value, pressure and flow by multistage centrifugal steam-operating speed-variable pump and the feedwater of main feed-regulating valve co-controlling make it to meet the demands.Because once through steam generator does not have water level, therefore, can only with vapor (steam) temperature, vapor pressure, feedwater flow, feed pressure etc. as control signal, can realize flow and the pressure that co-controlling feeds water by the rotating speed of adjusting steam feed pump and the aperture of throttle flow and main feed-regulating valve for water management;
(2) feedwater is regulated to stand erectly to connect and is controlled the total flow that supplies water to once through steam generator, and system configuration is simplified, and controls and simplifies;
(3) feedwater isolation valve can be with feedwater isolation fast under accident conditions.
Description of drawings
Fig. 1 is integral reactor water supply system schematic diagram of the present invention
Wherein: 1 is main feed pump; 2 is the main feed pump outlet non-return valve; 3 are main feed pump outlet isolation valve; 4 is the first main feed water isolating valve; 5 is main feed-regulating valve; 6 is the second main feed water isolating valve; 7 is the firstth bypass feedwater isolation valve; 8 are the bypass feed-regulating valve; 9 is the second bypass feedwater isolation valve; 10 is flowmeter; 11 is orifice plate; 12 is feed water check valve; 13 is containment; 14 is once through steam generator; 15 is the feed pipe group; 16 are feedwater adjusting station; 17 is the feed pipe group; 18 is feedwater deaerating system.
Embodiment
The present invention is further illustrated below in conjunction with Fig. 1 and embodiment.
A kind of water supply system that adopts the once through steam generator reactor comprises: station 16 and feed pipe group 17 are regulated in the feed pipe group 15 that is connected in series successively, feedwater;
Described feed pipe group 15 comprises the supply line of two parallel connections, an end of regulating station 16 away from feedwater of these two supply lines in parallel is connected with the sender property outlet of feed-water deaerator system 18, and the other end of these two supply lines in parallel is connected to described feedwater adjusting and stands 16; Article two, supply line in parallel is from all being furnished with successively main feed pump 1, main feed pump outlet non-return valve 2 and main feed pump outlet isolation valve 3 near feed-water deaerator system 18 ends to regulate station 16 ends near feedwater.Described main feed pump 1 is multistage centrifugal steam-operating speed-variable pump.Described multistage centrifugal steam-operating speed-variable pump drives by the fired multi-stage condensation type variable-speed turbine, and the admission of this fired multi-stage condensation type variable-speed turbine is provided by drawing gas of power station main steam turbine, and exhaust steam enters the power station main condenser.
Described feedwater is regulated station 16 and is comprised main feedwater adjustable pipe and bypass feedwater adjustable pipe, and an end of regulating the station away from feedwater of described main feedwater adjustable pipe and bypass feedwater adjustable pipe is connected to described feed pipe group 15; Be disposed with the first main feed water isolating valve 4, main feed-regulating valve 5 and the second main feed water isolating valve 6 from close feed pipe group end to close feed pipe group end on described main feedwater adjustable pipe; Be disposed with the first bypass feedwater isolation valve 7, bypass feed-regulating valve 8 and the second bypass feedwater isolation valve 9 from close feed pipe group end to close feed pipe group end on described bypass feedwater adjustable pipe;
Feedwater is delivered to feedwater and regulates station 16 after main feed pump 1 boosts, and during the normal power operation, feedwater flow is regulated by main feed-regulating valve 5, and this moment, bypass valve 8 was closed.Feedwater enters feed pipe group 17 after regulating station 16 adjust fluxes through feedwater, and is divided into 2 1/2 water supply arms, every 1/2 water supply arm penetrate containment 13 interior after, be respectively once through steam generator 14 and supply water.
Claims (5)
1. water supply system that adopts the once through steam generator reactor, its spy is being: comprise, the station is regulated in the feedwater that feed pipe group, an end are connected with described feed pipe group, an end regulates with feedwater the feed pipe group that the station other end is connected, the other end of described feed pipe group is connected with the once through steam generator supply line, is provided with main feed pump on described feed pipe group.
2. water supply system as claimed in claim 1, its spy is being: described feedwater is regulated station and is comprised main feedwater adjustable pipe and bypass feedwater adjustable pipe, the regulating an end of standing away from feedwater and be connected to described feed pipe group of described main feedwater adjustable pipe and bypass feedwater adjustable pipe; Be provided with variable valve on main feedwater adjustable pipe and bypass feedwater adjustable pipe.
3. water supply system as claimed in claim 1, its spy is being: described feed pipe group comprises the pipeline of two parallel connections, an end of regulating the station away from feedwater of these two parallel pipelines is connected with the sender property outlet of feed-water deaerator system.
4. water supply system as claimed in claim 1, its spy is being: the feed pipe group comprises the pipeline of two parallel connections, these two parallel pipelines an end of regulating the station away from feedwater be connected with the supply line of once through steam generator.
5. water supply system as claimed in claim 1, its spy is being: described main feed pump is multistage centrifugal steam-operating speed-variable pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205417385U CN202948744U (en) | 2012-10-22 | 2012-10-22 | Water supply system adopting once-through steam generator reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205417385U CN202948744U (en) | 2012-10-22 | 2012-10-22 | Water supply system adopting once-through steam generator reactor |
Publications (1)
| Publication Number | Publication Date |
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| CN202948744U true CN202948744U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012205417385U Expired - Lifetime CN202948744U (en) | 2012-10-22 | 2012-10-22 | Water supply system adopting once-through steam generator reactor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363514A (en) * | 2013-06-28 | 2013-10-23 | 西安交通大学 | Novel OTSG secondary loop water feed device |
| CN103474117A (en) * | 2013-09-03 | 2013-12-25 | 中国核电工程有限公司 | Safety supply method of auxiliary water supply system through adding of by-pass pipelines |
| CN103778984A (en) * | 2012-10-23 | 2014-05-07 | 中国核动力研究设计院 | Water supply system adopting once-through steam generator reactor |
| CN107131494A (en) * | 2017-04-26 | 2017-09-05 | 中国能源建设集团广东省电力设计研究院有限公司 | Multi-module type HTGR Nuclear Power Plant water supply system |
-
2012
- 2012-10-22 CN CN2012205417385U patent/CN202948744U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778984A (en) * | 2012-10-23 | 2014-05-07 | 中国核动力研究设计院 | Water supply system adopting once-through steam generator reactor |
| CN103363514A (en) * | 2013-06-28 | 2013-10-23 | 西安交通大学 | Novel OTSG secondary loop water feed device |
| CN103363514B (en) * | 2013-06-28 | 2014-11-05 | 西安交通大学 | Novel OTSG secondary loop water feed device |
| CN103474117A (en) * | 2013-09-03 | 2013-12-25 | 中国核电工程有限公司 | Safety supply method of auxiliary water supply system through adding of by-pass pipelines |
| CN103474117B (en) * | 2013-09-03 | 2016-08-17 | 中国核电工程有限公司 | A kind of safe replenishing method of auxiliary feedwater system increasing bypass line |
| CN107131494A (en) * | 2017-04-26 | 2017-09-05 | 中国能源建设集团广东省电力设计研究院有限公司 | Multi-module type HTGR Nuclear Power Plant water supply system |
| CN107131494B (en) * | 2017-04-26 | 2019-03-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Multi-module type HTGR Nuclear Power Plant water supply system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
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| CX01 | Expiry of patent term |