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A method for operation and maintenance of a nuclear-level digital instrumentation and control system in a pressurized water reactor nuclear power plant

A technology of operation maintenance and instrument control system, which is applied in the direction of nuclear power plant control, nuclear power plant, nuclear power generation, etc. It can solve the problems of time-consuming and energy-consuming unit safety risks, large amount of manual operation, and low level of automation, so as to avoid human factors Risk of error, avoidance of experimental errors, effects of ensuring usability

Active Publication Date: 2021-05-18
CNNC FUJIAN FUQING NUCLEAR POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional test methods require a large number of signal sources and manpower support, frequently plugging and unplugging test cables or switching test switches, and it takes a long time, while the execution window is limited during the overhaul period, and the short-term intensive manpower and complex work brings a greater burden to the work. risks of
[0007] The above-mentioned operation and maintenance work has problems such as high work risk, large amount of manual operation, low level of automation, and error-prone, which consumes time and labor and brings greater safety risks to the operation of the unit

Method used

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Embodiment Construction

[0075] The technical solutions of the present invention will be described in detail below in conjunction with specific embodiments.

[0076] A method for operation and maintenance of a nuclear-level digital instrumentation and control system in a pressurized water reactor nuclear power plant of the present invention comprises the following steps:

[0077] 1. Determine the application system

[0078] The operation and maintenance method of the nuclear-level digital instrument control system of the pressurized water reactor nuclear power plant is applied to the nuclear-level digital control system. The nuclear-level digital control system is divided into two parts: (1) four channels involved in shutdown protection signal processing, each The channel contains two shutdown subgroups; (2) two trains participating in the ad hoc safety facility drive, each column contains two ad hoc logic processing subgroups and one ad hoc data processing subgroup;

[0079] The above four channels ...

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Abstract

The invention belongs to the field of operation and maintenance of nuclear process control systems, and in particular relates to a method for operation and maintenance of nuclear-level digital instrument control systems in pressurized water reactor nuclear power plants. The method includes the following steps: 1. Determining the application system; 2. Determining the specific function and realization process of the method. This method is used in the operation and maintenance of nuclear-level digital instrumentation and control system (KCS system) in pressurized water reactor nuclear power plant. To ensure the safe and stable operation of the unit.

Description

technical field [0001] The invention belongs to the field of operation and maintenance of nuclear process control systems, and in particular relates to a method for operation and maintenance of nuclear-level digital instrument control systems in pressurized water reactor nuclear power plants. Background technique [0002] The nuclear-level digital instrument control system (hereinafter referred to as KCS) is an important safety system in the digital instrument control system of nuclear power plants. Its main function is to shut down and / or activate special safety facilities , to prevent or mitigate damage to the core and coolant system components, protect the integrity of the three major nuclear safety barriers, avoid causing a large amount of radioactive material to escape, and protect the surrounding environment of the nuclear power plant from pollution and the safety of personnel. [0003] After the KCS system is put into operation, it needs to carry out operation and mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21D3/00
CPCG21D3/001Y02E30/00
Inventor 李逊存宫成军尤兵杨宝松侯英东杨汝贞蔡红伟朱宁卢俊吕瑞广卫振华周国烨刘杨中华
Owner CNNC FUJIAN FUQING NUCLEAR POWER
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