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Pressure stabilizing system for detecting internal leakage amount of valve

A technology for testing valves and valves. It is applied in the direction of measuring the increase and decrease rate of fluid, measuring devices, and liquid tightness measurement by using liquid/vacuum degree. , to achieve the effect of increasing pipeline pressure and increasing buffer capacity

Active Publication Date: 2020-02-21
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing pressure stabilizing device is to supplement the pressure of the system through simple water level adjustment, the system pressure fluctuates greatly, and it is impossible to realize the real-time pressure adjustment under the high pressure of the pipeline

Method used

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  • Pressure stabilizing system for detecting internal leakage amount of valve

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0032] Such as figure 1 As shown, the pressure stabilizing system for detecting internal leakage of the valve according to the present invention includes a water tank 1, a first electric valve 3, a plunger pump 4, a centrifugal pump 6, a first check valve 5, and a second check valve. Valve 7, the first airbag type surge tank 12, the second airbag type surge tank 16, the compressor 18, the pressure controller 19, the pilot pressure reducing valve 23, the first test valve 26, the second test valve 27, the first Three test valves 28, a fourth test valve 29 and a collection device 30. The outlet of the water tank 1 is connected with the first electric valve 3, and the outlet of the first electric valve 3 is divided into two routes, one of which is connected with the plunger ...

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Abstract

The invention provides a pressure stabilizing system for detecting the internal leakage amount of a valve. The pressure stabilizing system comprises a power device, a pressurizing device, a test valveand a leakage measuring device which are connected in sequence. The power device is used for applying pressure to the test valve; the pressurizing device is used for supplementing pressure to the test valve under the condition that the pressure of the power device is insufficient; and the leakage measuring device is used for detecting the leakage amount of the test valve. The pressurizing devicecomprises at least two bag type pressure stabilizing tanks which are connected in series, a pressure release valve and a pressure sensor are arranged at the top of each bag type pressure stabilizing tank, and the bag type pressure stabilizing tanks are connected with a compressor. The upstream pressure of the test valve can be kept stable under different test pressure working conditions.

Description

technical field [0001] The invention relates to the technical field of pipeline pressure stabilization control, in particular to a pressure stabilization system for detecting internal leakage of valves. Background technique [0002] With the rapid development of my country's modern industry and the increasing demand for petrochemical energy in basic industries, the country has begun large-scale investment in the construction of petrochemical oil and gas stations. So far, the total mileage of my country's petrochemical oil and gas pipelines ranks third in the world, and the overall technical level of the petrochemical industry has begun to enter the world's advanced ranks. Valves in petrochemical pipeline stations are important equipment for controlling medium transportation and play an important role in protecting the normal operation of the entire pipeline system. With the increase in the service life of valves, the corrosion of the sealing end surface by the transportation...

Claims

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Application Information

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IPC IPC(8): G05D16/20G01M3/28
CPCG05D16/2013G01M3/2876
Inventor 董亮张立新代翠刘厚林尚欢欢朱建成郭瑾楠
Owner JIANGSU UNIV
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