Gas leakage detection apparatus

A gas leak detection and gas technology, which is used in liquid/vacuum measurement for liquid tightness, and by measuring the acceleration and deceleration rate of fluid, etc., to achieve the effect of protecting personal safety, wide application range and high sampling rate

Inactive Publication Date: 2012-01-18
SUZHOU INDAL PARK INST OF SERVICES OUTSOURCING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The purpose of the present invention is to provide a gas leak detection device to solve many problems in the prior art

Method used

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Embodiment Construction

[0032] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0033] figure 1 It is a schematic diagram of the overall structure of the gas leakage device according to the present invention. Such as figure 1 As shown, the gas leakage device according to the present invention includes a factory compressed gas input port 1, a primary air pressure adjustment unit 2, a secondary air pressure adjustment unit 3, a gas stabilizing device 4, a gas on-off control unit 5, a range expansion selection unit 6, Gas flow sensor and conditioning circuit 7 , clamp unit 8 , MCU (micro control module) circuit 9 , and control unit 10 .

[0034] The object to be tested in this embodiment is a circular film-shaped object to be tested. It is necessary to test the airtightness of this product, that is, to detect gas leakage, and to judge whether it is qualified or not through the detection of gas flow. The object to be ...

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Abstract

The invention provides a gas leakage detection apparatus which comprises a factory compressed gas input port, an air pressure adjusting unit, a gas on-off control unit, a measuring range enlargement selection unit, a gas flow sensor and conditioning circuit, and a clamp unit. The factory compressed gas input port receives compressed gas used for detection, transmits the gas to the air pressure adjusting unit, and after obtaining flowing gas of suitable air pressure, transmits the gas to the gas on-off control unit. The gas on-off control unit is turned on, stable gas is transmitted to the measuring range enlargement selection unit, and the flowing gas is outputted to the clamp unit through the gas flow sensor and conditioning circuit. According to the invention, the measuring range enlargement selection unit is added, through a gas flow measurement apparatus, outputted gas reaches the clamp unit equipped with a device to be measured, a disadvantage that in previous airtight measurement an object to be detected should has certain internal volume is overcome.

Description

technical field [0001] The invention relates to the field of flow detection, in particular to a gas leakage detection device. Background technique [0002] In modern industry, the requirements for the measurement of gas leakage indicators of some components are getting higher and higher, and the requirements for the testing of production parts or accessories are becoming more and more refined. Therefore, many products or accessories need to be tested during the production process or before use. The test of the leakage value is also transformed into the test of the gas leakage flow rate. It is generally required to observe and record the gas flow value during the detection process (for a period of time), so as to judge whether the various characteristics of the product meet the test standards. The requirements for mass production testing are different from the testing requirements for individual products in the laboratory. The stability and accuracy of the testing device must...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
Inventor 刘正蒋常炯张鹏陈雪勤王莉陈强袁华
Owner SUZHOU INDAL PARK INST OF SERVICES OUTSOURCING
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