Device and method for testing micro-leakage of liquid medium valve
A technology for liquid medium and leakage testing, which is applied in the direction of measuring devices, fluid tightness testing, liquid tightness measurement using liquid/vacuum degree, etc. problems, to ensure the quality of valve maintenance and the reliable operation of valves
Pending Publication Date: 2019-03-08
RES INST OF NUCLEAR POWER OPERATION +1
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Problems solved by technology
Due to limited technology and the special conditions of nuclear power plants, most domestic nuclear power plants basically disassemble and grind the valves during overhaul, and cannot verify whether the valve sealing is qualified in time. Once the test fails, the unit status has to be withdrawn, seriously affecting normal operation of the power plant
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[0038] The present invention will be further described below with reference to the drawings and embodiments.
[0039] Such as figure 1 As shown, a liquid medium valve micro-leakage test device includes a booster pump, a pipeline module, an energy storage module, a simulated micro-leakage device, a sensor module, an acquisition control module, and an upper computer. The booster pump is connected with the energy storage module through the pipeline module, and the energy storage module is respectively connected with the valve simulation body, the simulated micro-leakage device and the sensor module through the pipeline module. The valve simulation body is respectively connected with the sensor module and the simulated micro-leakage device through the pipeline module. The control acquisition module is respectively connected with the booster pump, the sensor module and the simulated micro-leakage device through cables. The upper computer is connected with the control acquisition modu...
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The invention belongs to the technical field of equipment gas leakage detection, in particular to a device and method for automatically measuring gas micro-leakage of an MSR pilot valve online. A local online pressure method is adopted to accurately detect the leakage rate and to inspect and identify the valve sealing performance so that the maintenance quality of the valve is effectively ensured.The device is characterized by comprising a booster pump, a pipeline module, an energy storage module, a micro-leakage simulation device, a sensor module, a collection and control module and a host computer. The booster pump is connected with the energy storage module through the pipeline module. The energy storage module is respectively connected to a valve simulation device, the micro-leakage simulation device and the sensor module through the pipeline module. The valve simulation device is respectively connected with the sensor module and the micro-leakage simulation device through the pipeline module. The collection and control module is connected with the booster pump, the sensor module and the micro-leakage simulation device respectively through the cables. The host computer is connected with the collection and control module through the cables.
Description
Technical field [0001] The invention belongs to the technical field of equipment liquid leakage detection, and in particular relates to an online automatic measurement of liquid medium valve micro-leakage detection device and method. Background technique [0002] The valve plays the role of fluid interception, isolation and regulation on the system pipeline loop. The quality of the sealing performance directly affects the safe, reliable, economic and stable operation of the nuclear power plant. If leakage occurs, the integrity of the pressure boundary of the entire system will be damaged, and the nuclear power plant Posed a threat to security. [0003] Eliminating valve leakage is a key concern in the operation and maintenance of nuclear power plants. Due to technical limitations and the special conditions of nuclear power plants, most domestic nuclear power plants basically use the disassembly and grinding of valves during major repairs, and it is impossible to verify whether the...
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Login to View More IPC IPC(8): G01M3/28
CPCG01M3/2876
Inventor 黄萍罗伟沈勇波符帅朱汉武朱翠云刘赛楠
Owner RES INST OF NUCLEAR POWER OPERATION