High precision gas leakage working position separating detection device

A gas leakage and detection device technology, which is applied in the direction of liquid tightness measurement by using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, can solve the problems of low detection efficiency and low detection accuracy, and achieve improved detection accuracy, Effect of improving detection efficiency, improving detection efficiency and detection accuracy

Inactive Publication Date: 2009-06-17
ZHEJIANG UNIV OF TECH
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  • Claims
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Problems solved by technology

[0011] In order to overcome the deficiencies of low detection accuracy and low detection efficiency of existing gas leakage detection device

Method used

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  • High precision gas leakage working position separating detection device
  • High precision gas leakage working position separating detection device
  • High precision gas leakage working position separating detection device

Examples

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[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Refer to figure 1 , A high-precision gas leakage detection device for sub-stations, including a standard container 14, a container to be tested, and a gas source 1. The gas source 1 is connected to a gas source treatment equipment 2, and the outlet of the gas source treatment equipment is provided with a detection pressure reduction The valve 3 and the inflation pressure reducing valve 20. The detection pressure reducing valve 3 is connected to the main joint valve 4, and a pressure gauge 27 is connected between the two. The main joint valve 4 is connected to the detection pipeline through the detection joint valve 5a. The terminal of the detection pipeline is connected to the container under test, the main joint valve 4 is connected to the standard container pipeline through the standard joint valve 5b, and this pipeline terminal is connected to the standard conta...

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Abstract

The invention relates to a separated-working-position detecting device for the leakage of high precision gas. The detecting device comprises a standard container, a detected container and gas source. A pressure reduction detecting valve is connected to a detecting pipeline and a standard container pipeline by a main connector valve; the other end of the detecting pipeline is connected with the detected container; the other end of the standard container pipeline is connected with the standard container; a differential pressure connector valve and a differential pressure sensor are arranged between the detecting pipeline and the standard container pipeline; a gas filled pressure reduction valve is connected with a gas filled connector valve; the detecting pipeline is connected with an intelligent compensation controller which is used for determining compensation rate and controlling the feed amount of a stepping motor according to a differential pressure signal; the detected container is arranged on a workbench and is characterized in that the workbench comprises a gas filled working position, a balance working position, a detecting working position, a gas exhaust working position and a working position switching mechanism; the gas filled working position is provided with a gas filled connector valve seat; the balance working position is provided with a balance connector valve seat; the detecting working position is provided with a detecting connector valve seat, and the gas exhaust working position is provided with a gas exhaust connector valve seat. The invention can improve detecting precision and detecting efficiency.

Description

technical field [0001] The invention relates to a high-precision detection device for gas leakage division. Background technique [0002] At present, in related industries such as automobile, gas, aviation, military industry, electronics, machinery, logistics distribution, etc., there is a widespread demand for automatic leakage detection devices for related product workpieces and assemblies, especially in the fields of wide pressure, large volume, and high temperature. Intelligent automatic leakage detection devices under the conditions of variable and multi-station detection requirements are urgently needed. This technology has become the key to improving production efficiency and product quality in related industries. [0003] As long as the quantitative leak detection method used in the past is the differential pressure method, the gas leakage is related to the test pressure and the structure of the leak hole, but the structure of the leak hole cannot be measured by phys...

Claims

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Application Information

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IPC IPC(8): G01M3/32
Inventor 熊四昌胡承建朱坚栋
Owner ZHEJIANG UNIV OF TECH
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