CN103578590B - Nuclear power station dead electricity accident analysis method and system - Google Patents
Nuclear power station dead electricity accident analysis method and system Download PDFInfo
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- CN103578590B CN103578590B CN201310566001.8A CN201310566001A CN103578590B CN 103578590 B CN103578590 B CN 103578590B CN 201310566001 A CN201310566001 A CN 201310566001A CN 103578590 B CN103578590 B CN 103578590B
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Abstract
Whether the invention discloses a kind of nuclear power station dead electricity accident analysis method, comprising: the power supply detecting each nuclear plant safety system equipment can be used；If power supply can be used, then analyze whether each nuclear plant safety system equipment function can be used；If each nuclear plant safety system equipment function can be used, then judge that dead electricity accident does not occur nuclear power generating sets。Nuclear power station dead electricity accident analysis method of the present invention is by whether the detection power supply of each nuclear plant safety system equipment, each nuclear plant safety system equipment function can be used, and then judge whether nuclear power generating sets dead electricity accident occurs, effectively meet the requirement of nuclear power station safety full protection, artificial Fault Tree can be overcome to carry out the inefficient defect of power loss analysis method。Additionally, the invention also discloses a kind of nuclear power station dead electricity accident analysis system。
Description
Technical field
The invention belongs to technical field of nuclear power, it is more particularly related to a kind of nuclear power station dead electricity accident analysis method and system。
Background technology
In the design of nuclear power station, it is necessary to design basis accident is analyzed, wherein to consider nuclear power station dead electricity accident conditions。Pressurized-water reactor nuclear power plant is mainly made up of three parts such as pressurized water reactor, primary Ioops system and secondary coolant circuit systems, nuclear fission is to enter ground nuclear fuel in the reactor core being made up of in pressure vessel, presurized water reactor with low-enrichment uranium be fuel, light water is for coolant and moderator。Nuclear fission liberated heat is taken out of out-pile by the water under high pressure of the primary Ioops system flowed through in heap and transfers heat to the water of secondary circuit in steamer generator, and the Steam Actuation steam turbine that water produces after being heated, steam turbine then drive electrical generators generates electricity。At present, the follow-on nuclear power station of the second filial generation, the heat discharge etc. of its nuclear safety function such as reactor still relies on supply of electric power。If losing electric power completely will bring unacceptable consequence when reactor capability is run, under most serious conditions, may result in reactor core fusing and radioactive substance leakage。In order to ensure that reliable nuclear safety function can be used, at present, nuclear power plant all adopts the distribution system of multiple technologies Redundancy Design, electric power is independently allocated to the ad hoc system of nuclear safety, it is to avoid the impact between system, makes single failure initiated core security function all to lose efficacy。
In order to make design reach above-mentioned target, current nuclear power station all can carry out dead electricity accident analysis in the design phase, by assessing whether nuclear power station dead electricity consequence can accept in theory, debugging startup stage, then need to organize and implement true dead electricity and test to verify that dead electricity consequence will not affect nuclear safety。At present, nuclear power station is for manually to carry out power loss analysis by Fault Tree, namely for specific initial condition or event, analyzes the Nuclear Power Plant Equipment that affects one by one, more progressively analytical equipment lost efficacy after impact on unit safety, then formulate counte-rplan。At engineering site, it is necessary to be again analyzed controlling risk according to on-the-spot practical situation, it is ensured that test consequence is positioned at tolerance interval。Because npp safety function and distribution system design complexity, cause that dead electricity consequences analysis workload is big, with high content of technology, Fault Tree Analysis is difficult to analyze the simultaneous superposition consequence of multiple accident, it is more difficult to analyze unit dead electricity consequence under various different conditions。How to the simultaneous consequence of multiple accident and unit, the consequence of dead electricity under various states is analyzed according to the actual requirements, realize before the true dead electricity test of engineering site tissue, reappraise the consequence of dead electricity whether in tolerance interval according to on-the-spot virtual condition, is problem demanding prompt solution。
Summary of the invention
It is an object of the invention to: solve artificial Fault Tree at present and carry out the defect of power loss analysis method, a kind of nuclear power station dead electricity accident analysis method and system is provided, it can pass through to detect the power supply of each nuclear plant safety system equipment, whether each nuclear plant safety system equipment function can be used, and then judge whether nuclear power generating sets dead electricity accident occurs, effectively meet the requirement of nuclear power station safety full protection。Further, by founding mathematical models and formula, it is provided that the mathematical method of dead electricity accident analysis, it is achieved superposition accident and the dead electricity consequences analysis mathematical calculation under different set state, the demand that nuclear power engineering is on-the-spot is met。
In order to realize foregoing invention purpose, the invention provides a kind of nuclear power station dead electricity accident analysis method, comprising:
Whether the power supply detecting each nuclear plant safety system equipment can be used；
If described power supply can be used, then analyze whether each nuclear plant safety system equipment function described can be used；
If each nuclear plant safety system equipment function described can be used, then judge that dead electricity accident does not occur nuclear power generating sets。
As a kind of improvement of nuclear power station dead electricity accident analysis method of the present invention, described analysis method also includes:
According to nuclear plant safety regulation, nuclear power station design document and power loss analysis file, it is determined that need each nuclear plant safety system equipment of detection。
As a kind of improvement of nuclear power station dead electricity accident analysis method of the present invention, whether the power supply of each nuclear plant safety system equipment of described detection can be used, including:
Detect the power supply of each nuclear plant safety system equipment, whether distribution board can be used。
As a kind of improvement of nuclear power station dead electricity accident analysis method of the present invention, whether the power supply of each nuclear plant safety system equipment of described detection can be used, including:
Using formula D=(B1 & B2 ...) | (B4&B5&B6 ...) detects whether the power supply of each nuclear plant safety system equipment can be used, and wherein, D represents a nuclear plant safety system equipment, and P represents power supply, and B represents distribution board。
As a kind of improvement of nuclear power station dead electricity accident analysis method of the present invention, described in described analysis, whether each nuclear plant safety system equipment function can be used, including:
Whether the state analyzing each nuclear plant safety system equipment described is in upstate。
As a kind of improvement of nuclear power station dead electricity accident analysis method of the present invention, described in described analysis, whether each nuclear plant safety system equipment function can be used, including:
Using formula S=D1& (D2 | D3) &!D4 analyzes whether each nuclear plant safety system equipment function described can be used, and wherein S representative system function, D represents nuclear plant safety system equipment status。
In order to realize foregoing invention purpose, present invention also offers a kind of nuclear power station dead electricity accident analysis system, comprising:
Detection module, whether the power supply for detecting each nuclear plant safety system equipment can be used；
Analysis module, can use if detecting described power supply for described detection module, then analyze whether each nuclear plant safety system equipment function described can be used；
Judge module, if each nuclear plant safety system equipment function described in described analysis module analysis can be used, then judges that dead electricity accident does not occur nuclear power generating sets。
As a kind of improvement of nuclear power station dead electricity accident analysis system of the present invention, described analysis system also includes:
Determine module, for according to nuclear plant safety regulation, nuclear power station design document and power loss analysis file, it is determined that need each nuclear plant safety system equipment of detection。
As a kind of improvement of nuclear power station dead electricity accident analysis system of the present invention, described detection module detects whether the power supply of each nuclear plant safety system equipment can be used, and specifically includes:
Detect the power supply of each nuclear plant safety system equipment, whether distribution board can be used。
As a kind of improvement of nuclear power station dead electricity accident analysis system of the present invention, described in described analysis module analysis, whether each nuclear plant safety system equipment function can be used, and specifically includes:
Whether the state analyzing each nuclear plant safety system equipment described is in upstate。
Compared with prior art, nuclear power station dead electricity accident analysis method and system of the present invention has following Advantageous Effects: by detecting the power supply of each nuclear plant safety system equipment, whether each nuclear plant safety system equipment function can be used, and then judge whether nuclear power generating sets dead electricity accident occurs, effectively meet the requirement of nuclear power station safety full protection。Additionally, by founding mathematical models and formula, it is provided that the mathematical method of dead electricity accident analysis, it is achieved superposition accident and the dead electricity consequences analysis mathematical calculation under different set state, meet the demand that nuclear power engineering is on-the-spot。Owing to each equipment carrying out dead electricity accident analysis identification, the dead electricity accident analysis under a situation arises the while of meeting multiple accident judges, improves than prior art and analyzes the speed judged, workload is less, obtains good technique effect。
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, nuclear power station dead electricity accident analysis method and system of the present invention is described in detail, wherein:
Fig. 1 provides the flow chart of nuclear power station dead electricity one embodiment of accident analysis method of the present invention。
Fig. 2 provides the schematic diagram of nuclear power station one embodiment of dead electricity accident analysis system of the present invention。
Detailed description of the invention
In order to make the goal of the invention of the present invention, technical scheme and Advantageous Effects thereof become apparent from, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated。It should be appreciated that the detailed description of the invention described in this specification is only used to explain the present invention, it is not intended to limit the present invention。
Provide a kind of nuclear power station dead electricity accident analysis method incorporated by reference to referring to Fig. 1, Fig. 1, specifically include:
Step 101, whether the power supply detecting each nuclear plant safety system equipment can be used。
Concrete, the structure of nuclear power plant instrument Ore-controlling Role is divided into the equipment of following four kinds of types: field apparatus, control process equipment, operation and information management apparatus and nuclear power station management equipment etc.。
Design according to nuclear power station auxiliary power supply system, the power communication of nuclear plant safety system equipment to all kinds of power supplys is set up formula, using formula D=(B1 & B2 ...) | (B4&B5&B6 ...) detects whether the power supply of each nuclear plant safety system equipment can be used, wherein, D represents a nuclear plant safety system equipment, P represents power supply, and B represents distribution board。The result of calculation of formula represents whether equipment required electric power can be used, if available, thinks that equipment can be switched to any state and includes the state needed for nuclear safety, if unavailable, equipment can be only in default setting。
Step 103, if power supply can be used, then analyzes whether each nuclear plant safety system equipment function can be used。
Concrete, using formula S=D1& (D2 | D3) &!D4 analyzes whether each nuclear plant safety system equipment function can be used, and wherein S representative system function, D represents nuclear plant safety system equipment status。As: as 1 represent valve open, the operating of pump/blower fan, 0 represents valve closing, pump/blower fan stoppage in transit etc.
Step 105, if each nuclear plant safety system equipment function can be used, then judges that dead electricity accident does not occur nuclear power generating sets。
According to current nuclear safety codes requirement, design document and power loss analysis file, clearly realize systemic-function necessary to nuclear safety function。Representing nuclear power generating sets state whether safety with U, S represents whether security system function can be used, then:
U=S1&(S2|S3)&S4
In this embodiment, by detecting the power supply of each nuclear plant safety system equipment, whether each nuclear plant safety system equipment function can be used, and then judge whether nuclear power generating sets dead electricity accident occurs, and effectively meets the requirement of nuclear power station safety full protection。Additionally, by founding mathematical models and formula, it is provided that the mathematical method of dead electricity accident analysis, it is achieved superposition accident and the dead electricity consequences analysis mathematical calculation under different set state, meet the demand that nuclear power engineering is on-the-spot。Owing to each equipment carrying out dead electricity accident analysis identification, the dead electricity accident analysis under a situation arises the while of meeting multiple accident judges, improves than prior art and analyzes the speed judged, workload is less, obtains good technique effect。
Incorporated by reference to the schematic diagram of the embodiment providing a kind of nuclear power station dead electricity accident analysis system referring to Fig. 2, Fig. 2, comprising: detection module 201, analysis module 203 and judge module 205。Concrete,
Detection module 201, whether the power supply for detecting each nuclear plant safety system equipment can be used；
Analysis module 203, can use if detecting power supply for detection module 201, then analyze whether each nuclear plant safety system equipment function can be used；
Judge module 205, can use if analyzing each nuclear plant safety system equipment function for analysis module 203, then judge that dead electricity accident does not occur nuclear power generating sets。
Optionally, this system can also comprise determining that module 207, for according to nuclear plant safety regulation, nuclear power station design document and power loss analysis file, it is determined that needs each nuclear plant safety system equipment of detection。
Further, detection module 201 detects whether the power supply of each nuclear plant safety system equipment can be used, and specifically includes:
Detect the power supply of each nuclear plant safety system equipment, whether distribution board can be used。
Further, analysis module 203 analyzes whether each nuclear plant safety system equipment function can be used, and specifically includes:
Whether the state analyzing each nuclear plant safety system equipment described is in upstate。
The implementation of system and flow process may refer to the embodiment of the method introduced in previous embodiment, repeat no more herein。
Can be seen that in conjunction with above detailed description of the present invention, relative to prior art, the present invention at least has following Advantageous Effects: by detecting the power supply of each nuclear plant safety system equipment, whether each nuclear plant safety system equipment function can be used, and then judge whether nuclear power generating sets dead electricity accident occurs, effectively meet the requirement of nuclear power station safety full protection。Additionally, by founding mathematical models and formula, it is provided that the mathematical method of dead electricity accident analysis, it is achieved superposition accident and the dead electricity consequences analysis mathematical calculation under different set state, meet the demand that nuclear power engineering is on-the-spot。Owing to each equipment carrying out dead electricity accident analysis identification, the dead electricity accident analysis under a situation arises the while of meeting multiple accident judges, improves than prior art and analyzes the speed judged, workload is less, obtains good technique effect。
According to above-mentioned principle, above-mentioned embodiment can also be carried out suitable change and amendment by the present invention。Therefore, the invention is not limited in detailed description of the invention disclosed and described above, should also be as some modifications and changes of the present invention falling in the scope of the claims of the present invention。Although additionally, employ some specific terms in this specification, but these terms are intended merely to convenient explanation, and the present invention does not constitute any restriction。
Claims (10)
1. a nuclear power station dead electricity accident analysis method, it is characterised in that described analysis method includes:
Whether the power supply detecting each nuclear plant safety system equipment can be used；
If described power supply can be used, then analyze whether each nuclear plant safety system equipment function described can be used；
If each nuclear plant safety system equipment function described can be used, then judge that dead electricity accident does not occur nuclear power generating sets。
2. analysis method according to claim 1, it is characterised in that described analysis method also includes:
According to nuclear plant safety regulation, nuclear power station design document and power loss analysis file, it is determined that need each nuclear plant safety system equipment of detection。
3. analysis method according to claim 2, it is characterised in that whether the power supply of each nuclear plant safety system equipment of described detection can be used, including:
Detect the power supply of each nuclear plant safety system equipment, whether distribution board can be used。
4. analysis method according to claim 2, it is characterised in that whether the power supply of each nuclear plant safety system equipment of described detection can be used, including:
Using formula D=(B1 & B2 ...) | (B4&B5&B6 ...) detects whether the power supply of each nuclear plant safety system equipment can be used, and wherein D represents a nuclear plant safety system equipment, and P represents power supply, and B represents distribution board。
5. analysis method according to claim 3, it is characterised in that described in described analysis, whether each nuclear plant safety system equipment function can be used, including:
Whether the state analyzing each nuclear plant safety system equipment described is in upstate。
6. analysis method according to claim 3, it is characterised in that described in described analysis, whether each nuclear plant safety system equipment function can be used, including:
Using formula S=D1& (D2 | D3) &!D4 analyzes whether each nuclear plant safety system equipment function described can be used, and wherein S representative system function, D represents nuclear plant safety system equipment status。
7. a nuclear power station dead electricity accident analysis system, it is characterised in that described analysis system includes:
Detection module, whether the power supply for detecting each nuclear plant safety system equipment can be used；
Analysis module, can use if detecting described power supply for described detection module, then analyze whether each nuclear plant safety system equipment function described can be used；
Judge module, if each nuclear plant safety system equipment function described in described analysis module analysis can be used, then judges that dead electricity accident does not occur nuclear power generating sets。
8. analysis system according to claim 7, it is characterised in that described analysis system also includes:
Determine module, for according to nuclear plant safety regulation, nuclear power station design document and power loss analysis file, it is determined that need each nuclear plant safety system equipment of detection。
9. analysis system according to claim 8, it is characterised in that described detection module detects whether the power supply of each nuclear plant safety system equipment can be used, and specifically includes:
Detect the power supply of each nuclear plant safety system equipment, whether distribution board can be used。
10. analysis system according to claim 8, it is characterised in that described in described analysis module analysis, whether each nuclear plant safety system equipment function can be used, and specifically includes:
Whether the state analyzing each nuclear plant safety system equipment described is in upstate。
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| CN106600122A (en) * | 2016-12-01 | 2017-04-26 | 中广核工程有限公司 | Nuclear power station device intelligent monitoring method, apparatus and system |
| CN108830323B (en) * | 2018-06-11 | 2022-06-03 | 詹佳硕 | Nuclear reactor accident pattern recognition and safety parameter estimation method and estimation system |
| CN109978500A (en) * | 2019-03-20 | 2019-07-05 | 武汉瑞莱保能源技术有限公司 | A kind of nuclear power station power loss trial system |
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