Atmosphere accumulation leak detection system and leak detection method thereof

A leak detection and atmospheric technology, applied in the field of total leak rate detection system, can solve the problems of long leak detection period, high operation and maintenance cost, complicated use and operation, etc., and achieves low manufacturing and operation cost, easy maintenance and maintenance, The effect of short detection period

Inactive Publication Date: 2010-06-16
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

Therefore, the equipment of this leak detection method is complex and the manufacturing, operation and maintenance costs are high; at the same time, the leak detection cycle is long, the use and operation are complicated, and the labor cost is high
For most civilian enterprises, high-cost and low-efficiency leak detection methods are obviously not applicable
[0005] At present, for the vast majority of

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  • Atmosphere accumulation leak detection system and leak detection method thereof
  • Atmosphere accumulation leak detection system and leak detection method thereof

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[0032] The following is a specific implementation manner of the content of the present invention, and the content of the present invention will be further clarified through the specific implementation mode below. Of course, the following specific embodiments are described only to illustrate different aspects of the present invention, and should not be construed as limiting the scope of the present invention.

[0033] figure 1 It is a schematic diagram of the atmospheric accumulation leak detection system of the present invention. The atmospheric accumulation leak detection system of the present invention comprises a collector, a leak detector, an atmospheric reference gas source, a leak-indicating gas sampling system and a leak rate calibration system. The leak-indicating gas sampling system and the leak detection port of the leak detector are sealed and connected through a vacuum-sealed connector; at the same time, the leak-indicating gas sampling system is also connected to...

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Abstract

The invention provides an atmosphere accumulation leak detection system which comprises a collector, a leak detector, an atmosphere reference gas source, a probe gas sampling system and a leak rate calibration system. The invention also provides an atmosphere accumulation leak detection method. The leak detection system and the leak detection method are suitable for the total leak rate detection of large-size workpieces of the aerospace industry, ships, vehicles, the nuclear industry, and the like, and meanwhile, the leak detection system and the leak detection method are also suitable for smaller workpieces having sealing requirements of other industries. The detection method belongs to the range of non-contact nondestructive detection, cannot do any damage to detected pieces and completely conforms to national relative standards of nondestructive detection.

Description

technical field [0001] The invention relates to a total leakage rate detection system, in particular to a detection system and a leak detection method for the total leakage rate of large components and complex sealing systems using atmospheric cumulative leak detection technology. Background technique [0002] There are mainly two kinds of total leak detection methods currently used, namely: pressure change leak detection method and vacuum leak detection method. [0003] The pressure change leak detection method can be divided into the pressure rise method and the pressure drop method. It is a method to detect the total leak rate by detecting the pressure change of the gas in the inspected part. It is a relatively easy-to-understand principle. The composition, operation and use are relatively simple, and a total leak rate detection method with relatively low costs. However, the leak detection sensitivity of this method is related to the volume of the object to be tested, th...

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Application Information

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IPC IPC(8): G01M3/20
Inventor 洪晓鹏冯琪闫荣鑫师立侠黄锡宁王静涛杨定魁
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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