A method of preventing meltdown in a reactor from damaging a pressure vessel and a system for implementing the method

A technology for reactor vessels and pressure vessels, applied in reactors, greenhouse gas reduction, nuclear engineering, etc., can solve problems such as insignificant cooling effect, large volume of cooling water tank, and no flow control of cooling water injection, so as to avoid adverse interactions, The effect of simple and reasonable design and high reliability
CN103426485BInactive Publication Date: 2017-08-04STATE NUCLEAR POWER TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE NUCLEAR POWER TECH
Publication Date
2017-08-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method used for preventing pressure vessels from melting damages caused by molten materials in reactors. The method comprises following steps: when nuclear reactor accidents happen, a reactor container in-vessel injection IRVR system is activated, and cooling water with a volume no less than V(m<3>) is injected into the pressure vessels, wherein V=0.02*P0, P0 represents reactor core power, and the unit of P0 is MWe. The invention also relates to the reactor container in-vessel injection IRVR system which is used for the method.
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Description

technical field

[0001] The invention relates to the technical field of nuclear safety, more particularly to the technical field of preventing reactor core molten material from melting and damaging reactor pressure vessels when a major accident occurs in a nuclear power plant. Background technique

[0002] In the design of nuclear power plants, nuclear safety is the primary issue to be considered. After the Three Mile Island nuclear power plant accident in the United States in 1979 and the Chernobyl nuclear power plant accident in the former Soviet Union in 1986, the prevention and mitigation of severe accidents have become factors that must be considered in the design of nuclear power plants. After the Fukushima accident in Japan in 2011, the prevention and mitigation of severe nuclear power plant accidents have attracted more attention from the public, governments and safety regulatory authorities of various countries. The risks of nuclear power plants mainly come from pot...

Claims

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