CN103050158A - Control method of auxiliary water feed pumps with automatic outage - Google Patents
Control method of auxiliary water feed pumps with automatic outage Download PDFInfo
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- CN103050158A CN103050158A CN2012105321673A CN201210532167A CN103050158A CN 103050158 A CN103050158 A CN 103050158A CN 2012105321673 A CN2012105321673 A CN 2012105321673A CN 201210532167 A CN201210532167 A CN 201210532167A CN 103050158 A CN103050158 A CN 103050158A
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- auxiliary feed
- water pump
- feed water
- auxiliary
- turbine driven
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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
- Y02E30/30—Nuclear fission reactors
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- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention belongs to an automatic control technology of a nuclear power station, and in particular relates to a control method of auxiliary water feed pumps with automatic outage. The method is characterized in that after an auxiliary water feed system is put into use, when specific accidents occur, a control system judges the running state of each auxiliary water feed pump of the auxiliary water feed system, and measures the liquid level situation of a steam generator simultaneously; and when the liquid level in the steam generator reaches to a set value, the control system stops the excessive auxiliary water feed pumps automatically. According to the invention, the potential risks of the previous auxiliary water feed function of the nuclear power station are avoided, the influences to the running stability of the power station by artificial intervention factors are reduced, and the effectiveness of the auxiliary water feed system and the safety level of running of the power station are improved.
Description
Technical field
The invention belongs to the nuclear power station automatic control technology, be specifically related to a kind of automatically stop transport control method of auxiliary feed water pump of auxiliary feedwater system that can be used for.
Background technology
Auxiliary feedwater system is the ad hoc system of the important safety in the advanced pressurized water reactor nuclear power plant.When it has an accident at reactor, to the steam generator moisturizing, to discharge residual heat of nuclear core.This system disposition has many auxiliary feed water pumps, comprises auxiliary water supply electric pump and auxiliary feedwater pneumatic pump.
In Power Plant Design in the past, there are following characteristics in auxiliary feedwater system:
For guaranteeing under the accident conditions, auxiliary feedwater system can carry out sufficient moisturizing to steam generator, discharges the waste heat of reactor core, and auxiliary feed water pump is redundant configuration.When having an accident; auxiliary feedwater system puts into operation; many auxiliary feed water pumps are accepted simultaneously the startup command of protection system and are moved, and excessive auxiliary feedwater easily causes steam generator (SG) spill-over, if there is the break situation of (SGTR) of steam generator heat-transfer pipe road; damaged SG can reach spill-over sooner; therefore in the past in the power station, behind many auxiliary feedwater pump startups, the unwanted pump of need artificially judging and stop transport; ensuring the auxiliary feedwater of capacity, and can not cause the SG spill-over.
In the design of ACP1000 heap type nuclear power station, for the security consideration of requirements at the higher level, proposed after accident, not allow in a period of time the requirement of manual intervention.
For satisfying above-mentioned requirements, further improve the security of auxiliary feedwater, the human intervention degree after the reduction accident, need to take corresponding innovative approach, automatic decision, the automatic unnecessary auxiliary feed water pump of stopping transport are guaranteed within a certain period of time, can not cause the SG spill-over because of moisturizing is excessive.
Summary of the invention
The objective of the invention is the requirement for the nuclear plant safety design, a kind of situation and control method of the unnecessary auxiliary feed water pump of automatically stopping transport of can the automatic decision auxiliary feedwater system putting into operation is provided.
Technical scheme of the present invention is as follows: a kind of control method of automatic stoppage in transit auxiliary feed water pump, the method is after auxiliary feedwater system puts into operation, when specific accident occurs when, control system is judged the running status of each auxiliary feed water pump of auxiliary feedwater system, measure simultaneously the level condition of steam generator, when the liquid level in the steam generator arrives setting value, the auxiliary feed water pump that it is unnecessary that control system is stopped transport automatically.
Further, the control method of aforesaid automatic stoppage in transit auxiliary feed water pump, wherein, control system judges according to pressure, flow, rotating speed or the power supply etc. of auxiliary feedwater pump discharge whether corresponding auxiliary feed water pump has started, and then counts the quantity of the auxiliary feed water pump that is moving.
Further, the control method of aforesaid automatic stoppage in transit auxiliary feed water pump, wherein, described auxiliary feedwater system comprises two electronic auxiliary feed water pumps and two turbine driven auxiliary feed-water pumps, when the liquid level in the steam generator arrived setting value, the mode of the auxiliary feed water pump that it is unnecessary that control system is stopped transport automatically was as follows:
If two electronic auxiliary feed water pumps and two turbine driven auxiliary feed-water pumps move simultaneously, two electronic auxiliary feed water pumps of autoshutdown are kept two turbine driven auxiliary feed-water pump operations;
If an electronic auxiliary feed water pump and two turbine driven auxiliary feed-water pumps move simultaneously, the electronic auxiliary feed water pump of autoshutdown operation is kept two turbine driven auxiliary feed-water pump operations;
If two electronic auxiliary feed water pumps and a turbine driven auxiliary feed-water pump move simultaneously, the turbine driven auxiliary feed-water pump of autoshutdown operation is kept two electronic auxiliary feedwater pump operations; Perhaps, electronic auxiliary feed water pump of autoshutdown is kept an electronic auxiliary feed water pump and a turbine driven auxiliary feed-water pump operation.
Further, the control method of aforesaid automatic stoppage in transit auxiliary feed water pump, wherein, the stoppage in transit of electronic auxiliary feed water pump realizes by the stoppage in transit instruction of mailing to switch cubicle; The stoppage in transit of turbine driven auxiliary feed-water pump realizes by the entrance isolation valve on the isolation steam admission passage, or realizes by the main inlet throttle-stop valve of closing on the turbine driven auxiliary feed-water pump pump housing.
Beneficial effect of the present invention is as follows: the present invention is after auxiliary feedwater system puts into operation, according to the conditions of demand of concrete accident to the auxiliary feedwater flow, and in conjunction with the level condition of steam generator, the automatic unwanted auxiliary feed water pump of stopping transport, the operation of reserve part feed pump, both satisfied the requirement that does not need within a certain period of time manual intervention, guaranteed again enough auxiliary feedwaters, to discharge residual heat of nuclear core.The enforcement of the method has solved the in the past potential risk of nuclear power station auxiliary feedwater function, has reduced the impact of human intervention factor on the power station operation stability, has improved the validity of auxiliary feedwater system and the security level of power station operation.
Embodiment
Below in conjunction with embodiment the present invention is described in detail.
After auxiliary feedwater system puts into operation, for guaranteeing that spill-over does not occur steam generator in the certain hour (SG), simultaneously also can guarantee enough confluents, behind the auxiliary feedwater pump startup, when specific accident occurs (such as the SGTR accident), in conjunction with the level condition of steam generator, control system will be judged the running status of pump automatically, and the unnecessary auxiliary feed water pump of automatically stopping transport.The present invention can design a setting value to steam generator, according to this setting value unnecessary auxiliary feed water pump of automatically stopping transport.
Embodiment
Take the auxiliary feedwater system that comprises two electronic auxiliary feed water pumps and two turbine driven auxiliary feed-water pumps as example, calculate conclusion through crash analysis: after auxiliary feedwater system puts into operation, four auxiliary feed water pumps supply water to steam generator simultaneously, can cause at short notice the steam generator spill-over.The present invention will be according to the startup situation of auxiliary feed water pump behind the auxiliary feedwater pump startup, and when steam generator reached certain liquid level, the unnecessary auxiliary feed water pump of automatically stopping transport only kept two auxiliary feedwater pump operations.
According to configuring condition and the operating condition of present auxiliary feed water pump, following several situations are arranged:
As mentioned above, when 4 pumps all in when operation, system triggers the termination of pumping signal of electronic auxiliary feed water pump automatically, two the electronic auxiliary feed water pumps of automatically stopping transport are kept the operation of two turbine driven auxiliary feed-water pumps.
When the electronic auxiliary feed water pump off-duty of separate unit, close another electronic auxiliary feed water pump by automatic control, keep the operation of two turbine driven auxiliary feed-water pumps.
When separate unit turbine driven auxiliary feed-water pump off-duty (only have 3 pump operations: 2 electrodynamic pump+1 pneumatic pumps), the auxiliary feed water pump of can stopping transport again as required.According to concrete conditions of demand, can stop transport a turbine driven auxiliary feed-water pump or the electronic auxiliary feed water pump of stopping transport.
In specific implementation process, control system judges according to pressure, flow, rotating speed or the power supply etc. of auxiliary feedwater pump discharge whether corresponding auxiliary feed water pump has started, by building corresponding automatically logic, can count the quantity at the operation auxiliary feed water pump, and automatically trigger as required the termination of pumping signal.The stoppage in transit of electronic auxiliary feed water pump realizes by the stoppage in transit instruction of mailing to switch cubicle.The stoppage in transit of turbine driven auxiliary feed-water pump realizes by the entrance isolation valve on the isolation steam inlet pipeline, or realizes by the main inlet throttle-stop valve of closing on the pneumatic pump pump housing.
The realization of interrelated logic relation can be inner at Digitizing And Control Unit DCS, finishes by Logical Configuration, also can utilize the principle of programming, and the program module special in the DCS indoor design realizes.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technology thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (4)
1. the control method of an automatic stoppage in transit auxiliary feed water pump, it is characterized in that: the method is after auxiliary feedwater system puts into operation, when specific accident occurs when, control system is judged the running status of each auxiliary feed water pump of auxiliary feedwater system, measure simultaneously the level condition of steam generator, when the liquid level in the steam generator arrives setting value, the auxiliary feed water pump that it is unnecessary that control system is stopped transport automatically.
2. the control method of automatic stoppage in transit auxiliary feed water pump as claimed in claim 1, it is characterized in that: control system judges according to pressure, flow, rotating speed or the power supply of auxiliary feedwater pump discharge whether corresponding auxiliary feed water pump starts, and then counts the quantity of the auxiliary feed water pump that is moving.
3. the control method of automatic stoppage in transit auxiliary feed water pump as claimed in claim 1 or 2, it is characterized in that: described auxiliary feedwater system comprises two electronic auxiliary feed water pumps and two turbine driven auxiliary feed-water pumps, when the liquid level in the steam generator arrived setting value, the mode of the auxiliary feed water pump that it is unnecessary that control system is stopped transport automatically was as follows:
If two electronic auxiliary feed water pumps and two turbine driven auxiliary feed-water pumps move simultaneously, two electronic auxiliary feed water pumps of autoshutdown are kept two turbine driven auxiliary feed-water pump operations;
If an electronic auxiliary feed water pump and two turbine driven auxiliary feed-water pumps move simultaneously, the electronic auxiliary feed water pump of autoshutdown operation is kept two turbine driven auxiliary feed-water pump operations;
If two electronic auxiliary feed water pumps and a turbine driven auxiliary feed-water pump move simultaneously, the turbine driven auxiliary feed-water pump of autoshutdown operation is kept two electronic auxiliary feedwater pump operations; Perhaps, electronic auxiliary feed water pump of autoshutdown is kept an electronic auxiliary feed water pump and a turbine driven auxiliary feed-water pump operation.
4. the control method of automatic stoppage in transit auxiliary feed water pump as claimed in claim 3, it is characterized in that: the stoppage in transit of electronic auxiliary feed water pump realizes by the stoppage in transit instruction of mailing to switch cubicle; The stoppage in transit of turbine driven auxiliary feed-water pump realizes by the entrance isolation valve on the isolation steam admission passage, or realizes by the main inlet throttle-stop valve of closing on the turbine driven auxiliary feed-water pump pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105321673A CN103050158A (en) | 2012-12-11 | 2012-12-11 | Control method of auxiliary water feed pumps with automatic outage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105321673A CN103050158A (en) | 2012-12-11 | 2012-12-11 | Control method of auxiliary water feed pumps with automatic outage |
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| CN103050158A true CN103050158A (en) | 2013-04-17 |
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| CN2012105321673A Pending CN103050158A (en) | 2012-12-11 | 2012-12-11 | Control method of auxiliary water feed pumps with automatic outage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2014090107A1 (en) * | 2012-12-11 | 2014-06-19 | 中国核动力研究设计院 | Method for extending time before steam generator overflows under accident condition |
| CN109411102A (en) * | 2018-10-23 | 2019-03-01 | 中核核电运行管理有限公司 | A kind of equipment state measure of supervision based on automatic start-stop |
| CN114110551A (en) * | 2021-11-19 | 2022-03-01 | 新奥数能科技有限公司 | Method and device for detecting operation state of boiler auxiliary machine, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113651A (en) * | 1977-05-18 | 1978-09-12 | Universite De Sherbrooke | Manufacture of a metal impregnated carbon from peat material |
| CN1252607A (en) * | 1998-10-22 | 2000-05-10 | Abb燃烧工程核力公司 | Water supply control in full power range for pressurized water reactor steam generator |
| KR20010076569A (en) * | 2000-01-26 | 2001-08-16 | 이종훈 | Method for controling of passive secondary condensing system in nuclear power plant |
| CN102446566A (en) * | 2009-01-05 | 2012-05-09 | 中国广东核电集团有限公司 | Water level control method and device for steam generator of nuclear power unit and nuclear power station |
-
2012
- 2012-12-11 CN CN2012105321673A patent/CN103050158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113651A (en) * | 1977-05-18 | 1978-09-12 | Universite De Sherbrooke | Manufacture of a metal impregnated carbon from peat material |
| CN1252607A (en) * | 1998-10-22 | 2000-05-10 | Abb燃烧工程核力公司 | Water supply control in full power range for pressurized water reactor steam generator |
| KR20010076569A (en) * | 2000-01-26 | 2001-08-16 | 이종훈 | Method for controling of passive secondary condensing system in nuclear power plant |
| CN102446566A (en) * | 2009-01-05 | 2012-05-09 | 中国广东核电集团有限公司 | Water level control method and device for steam generator of nuclear power unit and nuclear power station |
Non-Patent Citations (2)
| Title |
|---|
| 初永越 等: "GO-FLOW 法在大亚湾核电站辅助给水系统可靠性分析中的应用", 《辐射防护通讯》, vol. 32, no. 5, 31 October 2012 (2012-10-31) * |
| 阚强生 等: "核电站辅助给水系统设计", 《核动力工程》, vol. 19, no. 3, 30 June 1998 (1998-06-30), pages 208 - 213 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014090107A1 (en) * | 2012-12-11 | 2014-06-19 | 中国核动力研究设计院 | Method for extending time before steam generator overflows under accident condition |
| 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 |
| CN109411102A (en) * | 2018-10-23 | 2019-03-01 | 中核核电运行管理有限公司 | A kind of equipment state measure of supervision based on automatic start-stop |
| CN114110551A (en) * | 2021-11-19 | 2022-03-01 | 新奥数能科技有限公司 | Method and device for detecting operation state of boiler auxiliary machine, electronic equipment and storage medium |
| CN114110551B (en) * | 2021-11-19 | 2024-03-08 | 新奥数能科技有限公司 | Method and device for detecting operation state of auxiliary machine of boiler, electronic equipment and storage medium |
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Application publication date: 20130417 |