Remote shut-down amplifier station operation and control method when main control chamber of pressurized water reactor nuclear power plant is in forbidden state

Abstract

The invention belongs to the technical field of nuclear safety control and relates to a remote shut-down amplifier station operation and control method when a main control chamber of a pressurized water reactor nuclear power plant is in a forbidden state. The operation and control method includes steps of (1), an operators goes to a remote shut-down amplifier station for operation and control andperforms manual shut-down when the pressurized water reactor nuclear power plant is in the forbidden state; (2), a natural circulation method is adopted in remote shut-down amplifier station operationand control for temperature lowering and voltage reducing when a main pump cannot run; (3) a forced circulation method is adopted in shut-down amplifier station operation and control for temperaturelowering and voltage reducing when the main pump can still run. By adopting the operation and control method provided by the invention, different handling measures can be taken according to that whether the main pump can run or not and the mode of a machine unit through fully utilizing advantages of the digital nuclear power plant and combining with characteristics of the full function remote shut-down amplifier station when the main control chamber of the pressurized water reactor nuclear power plant is in the forbidden state and the operators goes to a remote shut-down amplifier station foroperation and control.

Description

technical field [0001] The invention belongs to the technical field of nuclear safety control, and relates to a remote shutdown station control method when the main control room of a pressurized water reactor nuclear power plant is uninhabitable. Background technique [0002] The main control room of a nuclear power plant provides complete control means for the operator, and the operator usually completes the monitoring of the status of the nuclear power plant and the control of the equipment in the main control room. However, in the event of a situation affecting the habitability of the operator in the main control room (fire, smoke, etc.), in order to ensure the safety of the nuclear power plant, the operator needs to transfer to the remote shutdown station for operation. The function of the remote shutdown station is to bring the reactor into a hot shutdown state and maintain the reactor in this safe state when the main control room is unavailable; Shutdown status. [0...

AI Technical Summary

Problems solved by technology

In the remote shutdown station of a traditional nuclear power plant, limited by the layout space, only part of the functions in the main control room can be realized; while the remote shutdown station of a digital nuclear power plant is no longer limited by the layout space, its operator workstation and The operator workstation in the main control room is identical in function and is fully functional

Therefore, due to the improvement of digital nuclear power plant control methods, the original operation strategy of "the main control room is uninhabitable and the remote shutdown station" of the traditional nuclear power plant is no longer the best choice to ensure the safety and economy of nuclear power plant operation. The large number of local operations and conservative operations in the strategy did not fully reflect the advantages of the full-featured remote shutdown station

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