Physical isolation device and method for control panel of nuclear power plant

A technology of isolation device and control panel, applied in nuclear power plant control, nuclear power plant, nuclear power generation, etc., to save installation space, reduce design requirements, and increase flexibility

Active Publication Date: 2021-08-13
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a nuclear power plant control panel physical isolation device and method to solve the problems of isolation channel continuity, integrity, implementability and maintainability, so that the control panel implementation scheme meets the requirements of physical isolation

Method used

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  • Physical isolation device and method for control panel of nuclear power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1 As shown, a nuclear power plant is controlled by a nuclear power plant, which includes an external input terminal segment 1, a disk line segment 2 and a disk device segment 3.

[0033] The outer-terminal terminal section 1 includes an outer wiring cable 4, a wiring terminal group 5, a detachable metal plate 6, and Gran A7, and the interior cable path segment 2 includes a closed metal wire groove 8 and a single metal hose A9. The disk device segment 3 includes a Gran B10, a metal hose B11, an isolated keel 12, a control coil body keel 13, a disk device 14, Gran C15.

[0034] The external line cable 4 is connected to the terminal block 5 passed by Gran A7.

[0035] External wiring cable 4 External sleeve isolation device.

[0036] The detachable metal plate 6 cover is outside the terminal block 5.

[0037] The detachable metal plate 6 size can be flexibly adjusted according to the 5 size of the terminal block, saving installation space, easy to install and post-...

Embodiment 2

[0044] The present invention provides an isolation method of a nuclear power plant control disc entity isolation device, which includes the following steps:

[0045] Step 1, connect the external line cable 4 to the entry side of the terminal block 5, and the other end is connected to the DCS cabinet;

[0046] Step 2, secure the detachable metal plate 6 to the outer portion of the wiring terminal block 5, to ensure the integrity of the outermost terminal block 1;

[0047] Step 3, the outline side of the terminal block 5 and the closed metal wire groove 8 and the single metal hose A9, the blocking metal wire groove 8 and the single metal hose A9 are placed inside the cable;

[0048] Step 4, the cable is closed, and the cable inside the single metal hose A9 is connected to the disc device 14 and the disk surface device 14 is connected to the disc device 14;

[0049] Step 5, the disk device 14 is fixed to the isolation keel 12, and the isolation of the keel 12 is fixed to the control ...

Embodiment 3

[0052] Isolation method using nuclear power plant control disc solid isolation device:

[0053] like figure 1As shown, the nuclear power plant control disc physical isolation device includes an external input terminal section 1, a disc / cable path segment 2 and a disk device segment 3.

[0054] The outer-terminal terminal section 1 includes an outer wiring cable 4, a wiring terminal group 5, a detachable metal plate 6, and Gran A7, and the interior cable path segment 2 includes a closed metal wire groove 8 and a single metal hose A9. The disk device segment 3 includes a Gran B10, a metal hose B11, an isolated keel 12, a control coil body keel 13, a disk device 14, Gran C15.

[0055] The external line cable 4 is connected to the terminal block 5 passed by Gran A7.

[0056] External wiring cable 4 External sleeve isolation device.

[0057] The detachable metal plate 6 cover is outside the terminal block 5.

[0058] The detachable metal plate 6 size can be flexibly adjusted accordin...

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Abstract

The invention belongs to the field of control panels of instrument control systems and main control rooms in nuclear power plants, and particularly relates to a physical isolation device and method for a control panel of a nuclear power plant. The device comprises an external wire inlet cable, a wiring terminal set, a closed metal wire groove, a metal hose a, a metal hose b, an isolation keel and panel surface equipment, wherein the external wire inlet cable is connected with the wire inlet end of the wiring terminal set, the wire outlet end of the wiring terminal set is respectively connected with the closed metal wire groove and the metal hose a, the closed metal wire groove is connected with the metal hose b, the metal hose a and the metal hose b are connected with one end of the isolation keel, and the other end of the isolation keel is connected with the panel surface equipment. According to the physical isolation device, by means of the keel and a detachable metal plate, installation space is saved, the problem that a traditional isolation device is difficult in engineering installation is solved, the structural design requirement for a panel body is reduced, the machining and manufacturing period of the panel body can be shortened, and implementation cost is saved.

Description

Technical field [0001] The present invention belongs to the nuclear power plant instrument control system and the main control chamber control disc field, and specifically, a nuclear power plant control disc solid isolation device and method. Background technique [0002] At present, at home and abroad, in the main control room of the Jian Nuclear Power Plant, the control panels are provided by the control panel based on conventional instruments as a means of monitoring power plants, which are used for security and non-safe function. As part of the instrument control system, when the monitoring device with redundant safety columns on the same control is installed, the requirements of the electrical equipment isolation criterion are required, and the channel path of different safety columns needs to be isolated. In response to the actual effect of the physical isolation of the control disc, the past domestic and international power stations are more neglected, and there is a risk ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21D3/00
CPCG21D3/008Y02E30/00
Inventor 邢继李颖张帆王彦君陈日罡张玉峰宋磊郭林田晖刘廉隅阎明高媛白江斌邓士光马仪炜赵仝李菁徐一茹刘恒平刘鑫伟郑腾蛟徐云龙段鹏飞
Owner CHINA NUCLEAR POWER ENG CO LTD
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