Sealing tool for leakage detection of water pipe weld of automobile air-conditioner and detection method

Abstract

The invention provides a sealing tool for leakage detection of a water pipe weld of an automobile air-conditioner and a detection method. The sealing tool comprises an end surface plugging mechanism,a bent hose jump ring plugging mechanism, a straight hose jump ring plugging mechanism and a profiling wrapping tool, the end surface plugging mechanism is fixed in the end surface of a water pipe ofthe air-conditioner, the bent hose jump ring plugging mechanism is fixed in the end portion of a bent hose of the water pipe of the air-conditioner, the straight hose jump ring plugging mechanism is arranged in the end portion of a straight hose of the water pipe of the air-conditioner, and the profiling wrapping tool wraps the to-be-detected water pipe of the air-conditioner, and provided with acollection port for detecting the leakage condition of the water pipe of the air conditioner. The problem of relatively low detection precision due to the fact that a present air-conditioner water pipe tool is large is the wrapping volume and inert gas is diluted is solved.

Description

technical field [0001] The invention belongs to the technical field of detection of automobile air-conditioning water pipes, and in particular relates to a sealing tool and a detection method for leak detection of weld seams of automobile air-conditioning water pipes. Background technique [0002] The water pipe is an important part of the car air conditioner, which is related to the life of the entire air conditioning system. Leaking water pipes can pose a safety hazard to vehicles in motion. During the manufacturing process of water pipes, leaks are prone to occur at the welds. Therefore, the leak detection of the welds of water pipes is particularly important. Commonly used detection methods include visual bubble method, differential pressure comparison method and inert gas collection method. The above-mentioned methods all need to use a sealing tool, that is, use a fixing device to clamp and seal the air-conditioning water pipe. The traditional technology is to seal t...

AI Technical Summary

Problems solved by technology

The traditional technology is to seal the air-conditioning water pipe and put it into the water to observe whether there are bubbles. The bubble method has the disadvantages of subjectivity, time-consuming, and labor-intensive. With the improvement of detection methods, the use of differential pressure comparison method has become the preferred method of many factories. The first choice, after long-term verification, the missed detection of the differential pressure comparison method is prominent; due to the high detection requirements of modern air-conditioning water pipes, the inert gas collection method is a common detection method in modern factories, with the advantages of high detection accuracy and high efficiency

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