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A test system and method for switching action of a nuclear power plant regulating valve

A switching action and testing system technology, applied in the field of nuclear power, can solve the problems of affecting test safety, long interval time, high labor cost, etc., and achieve the effect of reducing the risk of human errors, improving the degree of automation, and reducing manual operations

Active Publication Date: 2020-10-30
中广核工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the whole test period, the operator will closely monitor the disturbance of the parameters of the primary circuit. After each valve switch test, the parameters will be required to return to a stable state before the next switch test can be started. The station personnel force and the operator manually judges the parameters, so the interval time is not only long but also uncontrollable
In addition, the number of manual operations during the test (including the operation of changing the line during the test and the forced operation of the engineer station) is high and the complexity is high. The higher the value, the higher the complexity of the test and the greater the possibility of errors, which will directly affect the safety of the test

Method used

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  • A test system and method for switching action of a nuclear power plant regulating valve
  • A test system and method for switching action of a nuclear power plant regulating valve
  • A test system and method for switching action of a nuclear power plant regulating valve

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Experimental program
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Embodiment 1

[0039] An embodiment of the present invention provides a test system for the switching action of a nuclear power plant control valve, see figure 1 , the system consists of:

[0040] at least one regulating valve 1;

[0041] The signal channel assembly 2 is sequentially connected to each of the regulating valves 1;

[0042] The control device 3 includes a relay component, the control device is connected to the signal channel component, and is used to control the switching action of the regulating valve by opening or closing the relay component.

[0043] It should be noted that the circuit of the relay component is designed inside the control equipment to realize the automatic control of the regulating valve from opening to closing. Safety and quality performance, completely avoiding the influence of manual operation problems on the parameters of the primary circuit.

[0044] Further, the signal passage assembly 2 includes at least one signal passage; each of the signal passa...

Embodiment 2

[0090] An embodiment of the present invention provides a test method for the switching action of a nuclear power plant regulating valve, which can be applied to the test system for the switching action of the nuclear power plant regulating valve, see Figure 4 , the test method includes:

[0091] S1. The signal channel components are sequentially connected to each regulating valve;

[0092] S2. The control device is connected with the signal channel component, so as to control the switching action of the connected regulating valve through the opening or closing of the relay component.

[0093] In the embodiment of the present invention, a control device is provided to control the switching action of the regulating valve by opening or closing the relay assembly in the control device, so that the valve is fully closed when it is fully opened, and the interval time between valve switches is minimized; an adapter is provided to turn the regulating valve The signal line on the upp...

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Abstract

The invention discloses a testing system and method for an on-off action of an adjusting valve of a nuclear power station. The system includes at least one adjusting valve; a signal channel assembly connected to each adjusting valve in sequence; a control device including a relay assembly and connected with the signal channel assembly and used for controlling the on-off action of the adjusting valve through on or off of the relay assembly. The invention also discloses a testing method for the on-off action of the adjusting valve of the nuclear power station. The system and method can minimizethe on-off action time of the adjusting valve and reduce failure risks caused by human factors.

Description

technical field [0001] The invention relates to the technical field of nuclear power, in particular to a test system and method for switching action of a regulating valve of a nuclear power plant. Background technique [0002] The thermal function test of the valve is the most important test of the routine island during the hot test of the nuclear power unit. Its purpose is to perform the actual switching action of the valve under the condition of real steam pressure difference, and to test the quick opening / opening of the bypass valve by exhausting steam to the condenser. Off, adjust the on / off time to determine whether the bypass valve can meet the requirements of the unit. Since the test is carried out under real exhaust steam conditions, the exhaust steam volume directly affects the parameters of the primary circuit, the valve switch time and the safety of the test will have a direct impact on the stability of the primary circuit of the unit, and because the test is in a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
CPCG01R31/327
Inventor 姜礼东
Owner 中广核工程有限公司