Operation and maintenance method for nuclear level digital instrument control system of pressurized water reactor nuclear power plant

Abstract

The invention belongs to the field of the operation and maintenance of a nuclear process control system and particularly relates to an operation and maintenance method for a nuclear level digital instrument control system of a pressurized water reactor nuclear power plant. The method comprises the steps of (1) determining an application system, and (2) determining a specific function and an implementation process of the method. The method is used for the operation and maintenance of the nuclear level digital instrument control system (KCS system) of the pressurized water reactor nuclear powerplant. The method has the advantages of high reliability and a high degree of automation, the reliability of the KCS, faults are detected and the performability of a protection system is checked, andthe safe and stable operation of a unit is ensured.

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...

AI Technical Summary

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