Method and device for testing valve response time
A technology for response time and valve testing, which is applied in measuring devices, mechanical valve testing, and measuring ultrasonic/sonic/infrasonic waves, etc. It can solve the problems of inability to arrange maintenance and adjustment work in advance, inability to accurately understand valve response time, and hidden dangers left by safe operation and other issues to achieve the effect of reducing the amount of data processing, improving safety and economic operation indicators, and avoiding human errors
Active Publication Date: 2022-07-26
RES INST OF NUCLEAR POWER OPERATION +1
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Problems solved by technology
Due to the rapid switching action of fast-acting valves, conventional detection methods (such as stopwatch timing, etc.) cannot meet the requirements of accurate testing, resulting in the system operation and maintenance personnel unable to accurately understand the valve response time, and thus unable to arrange necessary maintenance and adjustment work in advance. Hidden dangers left by the safe operation of the system
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[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0035] figure 1 It is a flow chart of a method for testing valve response time according to an exemplary embodiment. The method can be applied to terminal devices such as notebook computers, desktop computers, or servers, for example, and the embodiment of the present disclosure does not limit the type of the terminal device, such as figure 1 As shown, the method can include:
[0036] Step 100 , within a first preset period of time, obtain vibration signal values of the valve moving component to be tested at each detection moment within the first preset period of time.
[0037] Step 101, taking a vibration signal value greater than a vibration signal threshold within the first preset time period as an effective vibration signal value.
[0038] Step 102: Determine the response time of the valve to be tested according to the times co...
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The present disclosure belongs to the technical field of nuclear power maintenance, and in particular relates to a method and a device for testing valve response time. The method includes: within a first preset time period, acquiring the vibration signal value of the moving part of the valve to be tested at each detection moment within the first preset time period; taking the vibration signal value greater than the vibration signal threshold value within the first preset time period as valid Vibration signal value; determine the response time of the valve to be tested according to the times corresponding to multiple valid vibration signal values. The embodiment of the present disclosure uses a non-intrusive measurement method to test the valve switching response time during the shutdown or operation of the unit, and can accurately grasp the switching response performance state of the valve through the change of the vibration signal value of the valve moving part, so as to eliminate the potential safety hazard of the system , improve the safety and economic operation indicators of industrial enterprises including nuclear power plants. In addition, the embodiments of the present disclosure can effectively filter interference data, reduce the amount of data processing, and thus improve the efficiency and accuracy of data processing.
Description
technical field [0001] The invention belongs to the technical field of nuclear power maintenance, and in particular relates to a method and a device for testing valve response time. Background technique [0002] Valves are the executive components of process control systems in the industrial field. They are widely used in the system loops of nuclear power plants and conventional power plants. The quality of their performance is directly related to the economic operation indicators of the power plant. The failure of some safety system valves will also lead to serious safety accidents and significant economic losses. [0003] There are many kinds of valves, and their uses are also extremely wide. According to their uses, there are usually regulating valves, globe valves, check valves, etc.; Fast-acting valve does not refer to a certain type or a certain purpose valve. It is a general term for one or more types of valves with extremely fast switching speed. Its switching time ...
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IPC IPC(8): G01M13/003G01H17/00
CPCG01M13/003G01H17/00
Inventor 沈勇波符帅罗伟熊星满舒芝锋杨威黄萍
Owner RES INST OF NUCLEAR POWER OPERATION