Quick and precise pipe leaking point detector and application method thereof

Abstract

The invention provides a fast and accurate pipe leakage detector and its use method, comprising an ammonia storage tank, a pressure switch, a four-way pipe, a vacuum switch, a pressure gauge, a test joint, and a vacuum pump; the gas outlet of the ammonia storage tank is connected to the pressure switch One end of the pressure switch; the other end of the pressure switch, the pressure gauge, one end of the vacuum switch, and the test joint are connected through a four-way pipe; the other end of the vacuum switch is connected to the exhaust pipe of the vacuum pump. Through structural improvement, the invention can utilize the characteristics of ammonia gas to detect leaks on aluminum tubes and achieve higher precision. Compared with the traditional helium mass spectrometer leak detection method: the cost of the present invention is lower than that of the helium mass spectrometer, and the operation is simple; the present invention can facilitate the use of PH test paper for leak detection, so the process can accurately determine the location of the leak point. Compared with the common method of leak detection by means of compressed air and soapy water, the invention can identify smaller leak points, and helps to provide a more convenient and accurate inspection method for the welding leak detection of aluminum tubes.

Description

technical field [0001] The invention relates to a detector, in particular to a fast and accurate pipe leak detector and a method for using the same. Background technique [0002] First, the concepts involved in the present invention will be described. [0003] Helium mass spectrometer leak detector: A device for leak detection by detecting helium gas with a gas analyzer. [0004] PH test paper: A test paper that changes color when it encounters ammonia. Through the change of color, it can be judged whether there is ammonia gas leakage. [0005] Vacuum pump: a device that uses mechanical, physical, chemical and other methods to pump air into the container to obtain vacuum. [0006] After the aluminum tube is welded, it is necessary to pass certain measures to check the welding quality and whether there are defects in the material. The leak detection methods usually include: helium mass spectrometer leak detection method, compressed air filling soapy water leak detection met...

AI Technical Summary

Problems solved by technology

[0007] Most of the existing aluminum tube leak detection is through the helium mass spectrometer leak detection method. The characteristics of this method are that the equipment cost is high, the operators need to undergo professional training, and the leak detection process cannot determine the specific leak point location

However, the leak detection methods commonly used in other industries, such as compressed air and soapy water, cannot meet the accuracy requirements of leak detection, and cannot accurately identify small welds.

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