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Nuclear power unit safety level DCS network structure

A technology of nuclear power unit and network structure, applied in the direction of bus network, ring network, data exchange network, etc., can solve the problems of unreasonable layout, affecting the data communication of the whole system, and large number of sub-cabinets, so as to improve the debugging efficiency and improve the availability. Maintainability, the effect of reducing the impact area

Active Publication Date: 2019-10-11
中广核工程有限公司 +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The present invention aims at setting multiple functional modules in different areas, and the number of sub-cabinets is large, and the layout is not reasonable enough. When an accident occurs in a certain functional module or sub-cabinet or the power is cut off for maintenance, it will affect the data communication of the entire system. , providing a safety-level DCS network structure for nuclear power units

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  • Nuclear power unit safety level DCS network structure
  • Nuclear power unit safety level DCS network structure
  • Nuclear power unit safety level DCS network structure

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Embodiment Construction

[0049] In order to solve the problem that multiple functional modules in the prior art are arranged in different areas, and the number of sub-cabinets is large, and the layout is not reasonable enough. When an accident occurs in a certain module or sub-cabinet or the maintenance power is cut off, the entire system will be affected. For the data communication problem, the present invention aims to provide a safety-level DCS network structure for nuclear power units. And the arrangement positions of the nodes in the man-machine data bus, the arrangement positions of the nodes in the safety bus, and the arrangement positions of the nodes in the safety system bus meet: the arrangement nodes of multiple sub-cabinets with the same disk platform are adjacent to each other, have the same path The nodes of multiple sub-cabinets of the power supply are arranged adjacent to each other, which can minimize the influence of the sub-cabinets with the same panel and power supply on other safet...

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Abstract

The invention provides a nuclear power unit safety level DCS network structure, and belongs to the technical field of nuclear power station safety protection. The system comprises a man-machine data bus, a safety bus and a safety system bus which form a looped network, and a nuclear power unit safety level DCS is arranged in the looped network; arrangement positions of the nodes in the man-machinedata bus, the arrangement positions of the nodes in the safety bus and the arrangement positions of the nodes in the safety system bus meet the conditions that the arrangement nodes of the multiple sub-cabinets with the same panel table are adjacent, and the arrangement nodes of the multiple sub-cabinets with the same power supply are adjacent. The influence on other equipment of the safety-levelDCS when the sub-cabinets with the same panel table and the same power supply are powered off or maintained off the network can be avoided to the greatest extent. The debugging and overhauling work efficiency and debugging efficiency of the safety-level DCS are improved, and the debugging period is shortened; and the influence range of single control station or single-row control cabinet shutdownmaintenance is reduced, and the maintainability and reliability of the system are improved.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant safety protection, in particular to a nuclear power unit safety level DCS network structure. Background technique [0002] As an important part of the nuclear power plant DCS system, the safety-level DCS of nuclear power units has realized the functional control of the safety-level and safety-related systems of nuclear power units. (ESFAC), Special Safety Facility Automatic Test Cabinet (ESFAT), Data Transmission Cabinet (DTC), Digital Safety Related Cabinet (SRC1-3), Analog Safety Related Cabinet (SRC4), Equipment Interface Cabinet (CIC), stack Core cooling monitoring system (CCMS), safety control display device (SCID), safety alarm cabinet (APC), gateway (GW), post-accident monitoring system (PAMS), etc.; each functional module includes multiple sub-cabinets, all Information exchange between sub-cabinets realizes functions such as control, display, and logic processing of safety-lev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/42H04L12/40
CPCH04L12/40006H04L12/42
Inventor 赵建杨鹏程马志昕罗昊
Owner 中广核工程有限公司
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