Serious accident instrument control system for nuclear power station

A serious accident, instrument control system technology, applied in the direction of nuclear power plant control, nuclear power generation, nuclear power plants, etc., can solve the problems of loss of AC power in nuclear power plants, lack of effective implementation, loss of monitoring and control functions of instrument control systems, etc. safety effect

Inactive Publication Date: 2017-02-22
中广核工程有限公司 +1
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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

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  • Serious accident instrument control system for nuclear power station

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Embodiment Construction

[0026] In order to make the object, technical solution and technical effect of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.

[0027] The instrument and control system for severe accidents in nuclear power plants of the present invention includes a field instrument layer, a logic processing layer, and an operation and information management layer; the field instrument layer includes field instruments and field actuators, and the field instruments and field actuators can be used to implement severe accidents and design basis accidents. and functions under normal operating conditions; the logic processing layer collects information from the on-site instrument layer, and outputs the infor...

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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...

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Application Information

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IPC IPC(8): G21D3/00
CPCG21D3/008Y02E30/00
Inventor 张怡田亚杰董孝胜苟晓龙唐华雄刘真
Owner 中广核工程有限公司
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