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Rapid leak detection device and leak detection method for total leakage rate of spacecraft condensate piping system

A technology for condensate water pipes and spacecraft, which is applied in the direction of measuring the acceleration and deceleration rate of fluids and using liquid/vacuum degree for liquid tightness measurement, etc. problems, to achieve the effect of saving leak detection time, improving leak detection efficiency and fast leak detection speed

Inactive Publication Date: 2015-10-21
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

[0003] Due to the many sealed pipeline systems, complex structures and states of manned spacecraft, the leak detection task is heavy, the process is complicated, and the leak detection period is long
At present, in the development of manned spacecraft, the mass spectrometry leak detection technology in the atmospheric environment is used to test the total leak rate of the pipeline system. The test cycle of a single pipeline system is at least 2 days. The box is a collection container, and the product and the box cover need to be hoisted repeatedly during the total leak rate test, which increases potential safety hazards and is not conducive to the safe production of model products

Method used

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  • Rapid leak detection device and leak detection method for total leakage rate of spacecraft condensate piping system

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[0029] 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.

[0030] figure 1 It is a structural schematic diagram of the rapid leak detection device used for testing the total leak rate of the spacecraft condensate piping system according to the present invention. The device includes a high-precision absolute pressure gauge (such as an absolute pressure gauge with a range of 0kPa to 250kPa and an accuracy of 0.01% FS, that is, ±25Pa), a pressure reducing valve, a high pressure gauge, a low pressure gauge, five stop valves, and a buffer gas cylinder. It is connected with the corresponding pipeline, wherein, the gas source is conne...

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Abstract

The invention discloses a quick leak detecting device and a leak detecting method of a spacecraft condensate water pipeline system general leak rate. Te device comprises a high-accuracy absolute pressure meter, a reducing valve, a high pressure manometer, a low pressure manometer, five stop valves, a buffer gas cylinder and corresponding connecting pipelines. The device integrates pressurization, testing and blow-off, and can conduct size measurement, air inflating, testing and blow-off to a condensate water pipeline system. Compared with an existing testing method and a testing device of a condensate water pipeline system general leak rate, the quick leak detecting device and the leak detecting method of the spacecraft condensate water pipeline system general leak rate has the advantages of being high in leak detecting sensibility, short in leak detecting period, and high in safety.

Description

technical field [0001] The invention relates to the field of leak detection of spacecraft pipeline systems, in particular to a rapid leak detection device capable of testing the total leakage rate of spacecraft condensed water pipeline systems, and also relates to a method for using the leak detection device to detect spacecraft condensed water pipes. A rapid leak detection method for the total leak rate of the road system. Background technique [0002] When a manned spacecraft is in orbit for a long time, the water vapor produced by the astronauts during breathing will gradually increase the relative humidity of the air in the sealed cabin until it reaches the saturated vapor pressure and condenses. In order to avoid excessive relative humidity from causing damage to the instruments and equipment in the airtight cabin and causing discomfort to the astronauts, equipment is required to condense water vapor and collect and contain the condensed products. Therefore, a condense...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/28
Inventor 韩琰闫荣鑫孙立臣冯琪师立侠窦仁超刘兴悦
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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