Serious accident instrument control system for nuclear power station

Abstract

The invention discloses a serious accident instrument control system for a nuclear power station, comprising an on-site instrument layer, a logic processing layer and an operation and information management system; the on-site instrument layer comprises an on-site instrument and an on-site executing mechanism; the on-site instrument and the on-site executing mechanism can be used for executing functions under serious accident, design basis accident and normal running condition; the logic processing layer collects the information from the on-site instrument layer, and outputs information to the operation and information management system to display; the operation and information management system receives and sends the control order to the logic processing layer, and the logic processing layer outputs the control order to the on-site instrument layer to execute. The serious accident instrument control system for the nuclear power station is supplied by regular power source and specific UPS at the same time. Compared with the prior art, the serious accident instrument control system for the nuclear power station guarantees that the serious accident handling strategy is effectively practiced under the condition of serious accident and lost alternating current of the whole plant, and the safety of the nuclear power station is improved.

Description

technical field [0001] The invention belongs to the field of nuclear power instrumentation and control, and more specifically, the invention relates to an instrumentation and control system for severe accidents in nuclear power plants. Background technique [0002] After the Fukushima nuclear accident, countries around the world began to study the development process and treatment strategies of severe accidents in the emerging third-generation nuclear power technologies. Many countries have established many test devices to simulate the phenomenon of severe accidents, and proposed many methods to prevent and mitigate severe accidents. Measures for accidents, such as retention of molten material in the reactor, reflooding of the core, etc. [0003] However, in the event of a serious accident like the Fukushima nuclear accident, the nuclear power plant loses all AC power, and the instrument and control system will also lose monitoring and control functions due to the loss of po...

AI Technical Summary

Problems solved by technology

[0003] However, in the event of a serious accident like the Fukushima nuclear accident, the nuclear power plant loses all AC power, and the instrument and control system will also lose its monitoring and control functions due to the loss of power supply. Effective implementation, unable to control the development of severe nuclear accidents and mitigate the consequences of severe nuclear accidents

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