Controllable suction gun, as well as leak detection system and leak detection method adopting same

Abstract

The invention discloses a spacecraft-used controllable suction gun with the automatic identification and guidance functions, as well as a leak detection system and a leak detection method both used for leak detection through adopting the suction gun. The system is finally endowed with the automatic identification and guidance functions through the manner that a weld joint is recognized through a bar code covered on a coating layer of a to-be-detected weld joint, and the leak detection system for leak detection of weld joints comprises the controllable suction gun, a helium mass spectrometer leak detector, a computer and a satellite three dimensional model stored in the computer. Compared with the conventional leak detection system, the leak detection system with the automatic identification and guidance functions, provided by the invention, realizes the automatic identification of to-be-detected weld joints, and can guide an operator to detect all the weld joints one by one as per the preset leak detection order.

Description

technical field [0001] The invention relates to a leak detection component and a leak detection system with automatic identification and guidance functions, and also relates to a leak detection method for spacecraft leak detection using the leak detection system. Background technique [0002] Leakage seriously threatens the safe launch and stable in-orbit operation of spacecraft. Various spacecraft must undergo strict leak detection tests during stand-alone production and final assembly. In the final assembly stage of the spacecraft, all welds must be leak tested one by one to ensure that the leak rate of each weld is within the allowable range. [0003] Spacecraft leak detection usually adopts helium mass spectrometry leak detection method. When detecting leaks, first fill the system under inspection with helium at a specified pressure, and then use a suction gun to sniff the outside of the weld, and the suction gun sucks the gas outside the weld into helium Mass spectrome...

AI Technical Summary

Problems solved by technology

Such an operation method is very time-consuming and labor-intensive, and the labor cost is very high. It basically belongs to the stage of manual work. Therefore, it is necessary and urgent to provide a leak detection tool with a high degree of automation.

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