Nuclear power plant signal channel switching control circuit and control device

A signal channel switching and control circuit technology, which is applied in the field of nuclear power plant signal channel switching control circuits and control devices, can solve the problems of low efficiency and reliability, achieve the effect of improving automation level, improving control function reliability, and reducing operation dependence

Pending Publication Date: 2022-04-12
GUANGDONG NUCLEAR POWER JOINT VENTURE +5
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  • 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 signal channel switching control circuit, aiming to solve the problem of low reliability of traditional equipment control

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  • Nuclear power plant signal channel switching control circuit and control device
  • Nuclear power plant signal channel switching control circuit and control device
  • Nuclear power plant signal channel switching control circuit and control device

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Embodiment Construction

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "m" means two or more, unless otherwise specifically defined.

[0040] The first aspect of the embodiments of the present invention proposes a signal channel switching cont...

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Abstract

The invention belongs to the technical field of nuclear power plant equipment management, and provides a nuclear power plant signal channel switching control circuit and a control device.The nuclear power plant signal channel switching control circuit comprises multiple signal channels, a manual change-over switch and a control circuit, and automatic selection control is achieved by adding redundant signal channels and the control circuit; the control circuit detects the multiple paths of control signals, automatically cuts off the path of signal when detecting that the control signal of one path of signal channel exceeds a preset signal threshold value, and controls the nuclear power plant control equipment to be switched to a manual mode when detecting that a plurality of paths of control signals exceed the preset signal threshold value. According to the utility model, the operation dependence on operators is reduced, the delay time in the switching process is shortened, the switching reliability is improved, the number of key sensitive devices is effectively reduced, the reliability of the control function is improved, the automation level of a power station is improved, meanwhile, corresponding channel selection control can be carried out through a manual change-over switch, selection control is realized, and the working diversity is improved.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant equipment management, and in particular relates to a nuclear power plant signal channel switching control circuit and a control device. Background technique [0002] Most of the control systems of nuclear power plants use technical equipment from the 1970s, mainly composed of analog boards, relays, and traditional hand operators, switches, and hard-light plates in the main control room. [0003] For example, for the measurement channel switching of important control circuits such as evaporator liquid level control, main feed water control, and main steam control, a hard switch is used. The hard switch is set with multiple selection gears. The signal is sent to the control loop for automatic control. [0004] During specific operations, the operator adopts the method of manual switching after discovering that the measurement channel is faulty or the measured value is unreliable, and sw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 彭超徐颖杨宗伟赵岩严加洪
Owner GUANGDONG NUCLEAR POWER JOINT VENTURE
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