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Severe accident diagnosis and handling method for pressurized-water reactor nuclear power station

A technology for pressurized water reactor nuclear power plants and serious accidents, which is applied in the field of implementation of serious accident management guidelines for pressurized water reactor nuclear power plants, can solve the problem that effective accident management cannot be implemented, serious accident consequences cannot be better alleviated, and the safety level of nuclear power plants cannot be continuously improved. and other problems, to achieve the effect of alleviating the consequences of serious accidents, improving the safety level, and reducing radioactive releases

Inactive Publication Date: 2006-09-27
LINGAO NUCLEAR POWER +1
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Problems solved by technology

[0005] In order to overcome the deficiencies of the above-mentioned existing technologies, a method for diagnosing and treating severe accidents in PWR nuclear power plants is provided, so as to solve the problem that the safety level of domestic nuclear power plants cannot be continuously improved, effective severe accident management cannot be implemented, and it cannot be better alleviated The issue of serious accident consequences

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  • Severe accident diagnosis and handling method for pressurized-water reactor nuclear power station
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  • Severe accident diagnosis and handling method for pressurized-water reactor nuclear power station

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Embodiment Construction

[0013] The method for diagnosing and treating serious accidents in PWR nuclear power plants of the present invention mainly includes: for general severe accident working conditions, carry out serious accident state diagnosis according to the diagnostic chart (DFC, Diagnostic Flow Chart) of serious accidents in PWR nuclear power plants and enter the management of severe accidents in nuclear power plants Corresponding steps in the guideline; for the consequences of a deteriorating accident where the containment is seriously threatened, according to the serious threat state diagram of the PWR nuclear power plant

[0014] (SCST, Severe Challenge Status Tree) judges and enters the corresponding steps of the severe accident management guidelines of nuclear power plants; establishes an auxiliary rapid calculation and evaluation method for the severe accident management guidelines, directly grasps the safety status of the accident unit through simple calculations, and correctly draws A...

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Abstract

This invention relates to a severe accident diagnosis and handling method for pressurized-water reactor nuclear power station, which comprises: to general serious accident operating condition, diagnosing accident state by the corresponding accident state diagnosis figure, and entering the serious accident management guide rule step; to the accident led fetal threat to containment, according to corresponding threat figure, entering accident management guide rule step; and creating assist fast calculation and evaluation method for serious accident management guide rule to direct master the security state of failed units by simple calculation and obtain accident treatment action to avoid wrong decision and countermeasure.

Description

technical field [0001] The invention relates to the implementation field of the Severe Accident Management Guidelines (SAMG) of a pressurized water reactor nuclear power plant, and mainly relates to a method for diagnosing and treating a serious accident of a pressurized water reactor nuclear power plant. Background technique [0002] As we all know, the events and accidents of PWR nuclear power plants can be divided into two categories: The first category is the normal operating conditions defined by the emergency shutdown of the reactor. Specifically, for such accident conditions, the technical specifications require that the plant be able to reach a certain fallback mode, where some equipment is not available due to failure. For such events and accidents, the priority is the integrity of the safety barrier, which ensures the integrity of the core and prevents core damage. The second category is severe accidents, in which a significant deterioration of the core performanc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C9/00
CPCY02E30/32Y02E30/30
Inventor 孙吉良
Owner LINGAO NUCLEAR POWER
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