Active and passive combined safety system and method for nuclear power plant

A passive containment and safety system technology, applied in nuclear power generation, nuclear power plant auxiliary equipment, nuclear engineering, etc., can solve the problems of reducing dependence on power supply, poor personnel intervention, and relatively high power supply requirements

Active Publication Date: 2020-05-08
NUCLEAR POWER INSTITUTE OF CHINA
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Problems solved by technology

[0002] Generally speaking, there are two safety design concepts for nuclear reactors. One is the active system. This type of system has the advantages of controllability, high technology maturity, and stable heating capacity. It can be efficiently and reliably corrected when the nuclear power plant deviates from normal. The disadvantage is that the requirements ...

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  • Active and passive combined safety system and method for nuclear power plant
  • Active and passive combined safety system and method for nuclear power plant
  • Active and passive combined safety system and method for nuclear power plant

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Embodiment Construction

[0050] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0051] Such as figure 1 , 2, 3, and 4, a safety system for combining active and passive nuclear power plants provided by the present invention includes a core cooling system communicated with the cold section 10 side of the pressure vessel 1, connected to the bottom of the pressure vessel The reactor cavity water injection system connected by the water injection channel 13, the containment heat removal system located on the side of the cold section 10 of the pressure vessel, and the steam generator secondary side heat removal system located on the secondary side of the steam generator 7; the core cooling system One side of the reactor cavity water injection system, the containment heat removal system and the steam generator secondary side heat removal system is located inside the containment vessel 20 , and the other side is located outside t...

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Abstract

The invention relates to the technical field of nuclear power. The invention particularly discloses an active and passive combined overall safety system and method for a pressurized water reactor nuclear power plant. The system comprises a safety injection system consisting of an active safety injection system and a passive safety injection system, a reactor cavity water injection system consisting of an active reactor cavity water injection system and a passive reactor cavity water injection system, a containment heat removal system consisting of an active containment spraying system and a passive containment heat removal system, and a steam generator secondary side heat removal system consisting of an auxiliary water supply system, a steam turbine bypass discharge system and a secondaryside passive residual heat removal system. According to the invention, the passive safety system is used as the supplement of the active safety system; the passive technology is fully utilized, the depth defense level and requirements of the nuclear power plant are comprehensively considered, depth defense is enhanced, energy removal under predicted operation events, design benchmark working conditions and design expansion working conditions (including serious accidents) possibly occurring in the nuclear power plant is better coped with, and the safety of the nuclear power plant is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and in particular relates to an overall safety system and a method for combining active and passive functions of a pressurized water reactor nuclear power plant. Background technique [0002] Generally speaking, there are two safety design concepts for nuclear reactors. One is the active system. This type of system has the advantages of controllability, high technology maturity, and stable heating capacity. It can be efficiently and reliably corrected when the nuclear power plant deviates from normal. The disadvantage is that the requirements for power supply are relatively high; the other is passive system, which completely depends on natural laws, such as gravity, natural convection and other phenomena. The design of this kind of system is simplified, which reduces the power supply. Dependence, the disadvantage is that the human intervention is poor, and there are many factors that affect...

Claims

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Application Information

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IPC IPC(8): G21C15/02G21C15/18G21D1/02
CPCG21C15/02G21C15/18G21D1/02Y02E30/30
Inventor 刘昌文冷贵君吴清邱志方喻娜李峰张晓华邓纯锐朱大欢丁书华杜思佳陈伟方红宇
Owner NUCLEAR POWER INSTITUTE OF CHINA
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