Nuclear power plant smoke plume emergency plan area division method and device

A technology for emergency planning and nuclear power plants, which is applied in calculation, data processing applications, complex mathematical operations, etc., and can solve the problems of unreasonable division and design of nuclear power plant plume emergency planning areas, single deterministic source items, and failure to consider the probability of accidents, etc. question
CN113393014APending Publication Date: 2021-09-14CHINA NUCLEAR POWER ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA NUCLEAR POWER ENG CO LTD
Publication Date
2021-09-14

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Abstract

The invention discloses a nuclear power plant smoke plume emergency plan area division method and device. The method comprises the following steps: 1) establishing a simulation area by taking a nuclear power plant as a center; 2) sampling hourly meteorological conditions for a preset position to obtain meteorological data, and calculating dose results of all release classes under all hourly meteorological sampling conditions by adopting a probability theory source item given by secondary probability safety analysis; 3) combining the occurrence frequency of each source item release class to obtain a source item, and performing calculating to obtain a weighted dose result; 4) obtaining the change of the frequency exceeding the specified dose along with the dose, and combining the specified dose limit value to obtain the frequency exceeding the specified dose limit value; 5) obtaining frequencies of all preset positions exceeding a specified dose limit value; 6) determining the range of the smoke plume emergency plan area in combination with a specified frequency limit value. According to the device and the method, the smoke plume emergency planning area is reasonably divided and designed, and a technical foundation is laid for development of three-level probability safety analysis work of the nuclear power plant.
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Description

technical field

[0001] The invention belongs to the technical field of safety analysis of nuclear power plants, and in particular relates to a method and a device for dividing a plume emergency planning area of ​​a nuclear power plant. Background technique

[0002] The emergency planning area refers to the area established in advance around the nuclear power plant, where emergency plans have been formulated and emergency preparations are made, in order to take timely and effective protective actions to protect the public in the event of an accident at the nuclear power plant. In the event of a nuclear accident, emergency preparedness needs to be carried out in the emergency planning area. In the case of emergency intervention, it is convenient to organize effective emergency response actions quickly and minimize the possible impact of the accident on the public and the environment. Among them, the plume emergency planning area is an emergency planning area established for th...

Claims

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