Method and system for ventilation of remote shutdown station of nuclear power station

Abstract

The invention relates to a system for the ventilation of a remote shutdown station of a nuclear power station. The system comprises inter-instrument control cabinet ventilation subsystems and control assemblies; multiple columns of inter-instrument control cabinet ventilation subsystems are provided; the inter-instrument control cabinet ventilation subsystems are communicated with a room of the remote shutdown station of the nuclear power station through pipelines and are used for ventilating the room of the remote shutdown station of the nuclear power station; the number of the control assemblies corresponds to that of the inter-instrument control cabinet ventilation subsystems; and the control assemblies are arranged on the pipelines through which the inter-instrument control cabinet ventilation subsystems are communicated with the room of the remote shutdown station of the nuclear power station; and each set of control assembly is used for controlling the on-off of the pipeline between each inter-instrument control cabinet ventilation subsystem and the room of the remote shutdown station of the nuclear power station. The invention further discloses a method for the ventilation of the remote shutdown station of the nuclear power station. With the system and method adopted, ventilation reliability of the remote shutdown station can be improved, execution of a safety function of the remote shutdown station of the nuclear power station is ensured, and safety and reliability of operation of the nuclear power station are improved.

Description

technical field [0001] The invention relates to the technical field of nuclear engineering, in particular to a ventilation method and system for a remote shutdown station of a nuclear power plant. Background technique [0002] In a nuclear power plant, when a fire occurs in the main control room, excessive smoke or dangerous gas enters the main control room, the main control room or cables are seriously damaged so that it cannot perform safety functions, the main control room area is severely damaged, and the main control room facilities are seriously damaged When there is a problem, the personnel in the main control room are required to evacuate to the Remote Shutdown Station (RSS). At this time, the main control room is unavailable and cannot perform important safety functions. Maintaining the safety of nuclear power plants and reducing the probability of nuclear accidents play a key role. Moreover, according to the nuclear power plant design safety regulations (HAF102-20...

AI Technical Summary

Problems solved by technology

[0003] At present, in the second-generation and second-generation stacking models, the design of the RSS ventilation system is in charge of the B-series ventilation subsystem (DVC2) in the main control room air-conditioning system (DVC). When the fire damper is suddenly closed, the ventilation function of the RSS room will be lost, resulting in affecting the execution of its safety function

In the third-generation nuclear power project, the APC shell was cancelled, and a single-layer thick wall was used to resist the impact of large aircraft. , there is a possibility that some instrument and control equipment in the main control room and the remote shutdown station will fail at the same time when the aircraft hits, which will affect the execution of safety functions

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