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High-pressure air-tightness test device

A test device and high-pressure gas technology, applied in fluid tightness testing, measuring devices, liquid tightness measurement using liquid/vacuum degree, etc., can solve problems such as inaccurate test results, achieve high accuracy, reduce gain The effect of pressing time

Inactive Publication Date: 2017-07-21
上海石油天然气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new type of high-pressure airtightness test device in order to overcome the inaccurate test results when the high-pressure test device in the prior art tests whether the test piece is leaking.

Method used

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Embodiment Construction

[0025] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail, but the present invention is not limited to the scope of the described embodiments.

[0026] Such as figure 2 As shown, the present embodiment provides a high-pressure air tightness testing device, which includes a test gas source 1, a pump gas source 2, a booster pump 3, a controller 4 such as a computer, a sealing gas cylinder 5, a first Two pressure sensors 6 and one unloading port 7.

[0027] Wherein, the inside of the sealed gas cylinder 5 is used to place the tested object 10, the outlet of the booster pump 3 is connected to the inlet of the booster pump 3 through a first pipeline 8, and the outlet of the booster pump 3 is connected through a second The pipeline 9 is connected with the inlet of the tested object 10, and the inlet of the tested object 10 passes through the second pi...

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Abstract

The invention discloses a high-pressure air-tightness test device. The device comprises a pump gas source, a booster pump, a controller, a sealed air cylinder, and a pressure test apparatus, the internal part of the sealed air cylinder is used for placing a tested member, the controller is used for controlling the pump gas source to drive the booster pump to boost the test gas to a set threshold, the booster pump is used for transmitting the test gas to the internal part of the tested member, the pressure test apparatus is used for testing pressure values in the sealed air cylinder in a time period after boosting to the set threshold and transmitting the pressure values to the controller, and the controller is used for determining whether the pressure value received at a later moment is always greater than the pressure value received at a previous moment in the time period and emitting prompt information of air leakage of the tested member if yes. According to the device, whether the tested member has air leakage can be accurately detected, the accuracy of test results is high, and a boosting loop is additionally provided so that the test gas in the loop is input to the booster pump again to realize secondary boosting, and the boosting time is reduced.

Description

technical field [0001] The invention relates to a testing device, in particular to a high-pressure airtightness testing device for testing whether a test piece such as a pipeline leaks. Background technique [0002] The existing supercharging device is mainly composed of a supercharging machine, the gas source inlet of the supercharging machine is connected to the gas source, and the high-pressure outlet of the supercharging machine is connected with the tested object through a pipeline. This design structure takes a relatively long time to reach the preset high voltage value for the test of high voltage requirements, which is not conducive to improving the test efficiency. [0003] Such as figure 1 As shown, the existing high-pressure testing device is mainly manually controlled, and the staff is easily injured by the leaked high-pressure gas during the testing operation. Moreover, the airtight test method is mainly: observe the pressure gauge 1 installed in the pressuriz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26G01M3/28
CPCG01M3/26G01M3/2815
Inventor 王皓王卫龙廖林燕冯彪
Owner 上海石油天然气有限公司
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