Leak detection device for auto air condition receiver drier and application method thereof

Abstract

The invention discloses a leak detection device for an auto air condition receiver drier and an application method thereof, which relates to a link detection technology and belongs to the technical field of pressure vessel detection. The leak detection device mainly comprises a workbench, a handle, a handspike, a pressure plate, a steel thread support bracket, an air tap, a pressurized-water mechanism, a lighting device, an operation keyboard, a timer and a counter. The method comprises the following steps: placing a drier to be detected on the steel thread support bracket in an inspection pool, and plugging the air tap; rotating the handle to drive the handspike to move the pressure plate; respectively utilizing the press plate and a rubber plate to tightly compress the two ends of the drier to be detected; trampling a pedal to the lowest end so as to lead a pressurized-water plate to press the water in a water storage chamber into the inspection pool through drain holes; carrying out voltage limiting inflation on the drier; and finally observing whether bubbles bubble up from the surface of the drier in the inspection pool within the given time so as to judge the gas tightness of the drier and mark. The invention has the functions of counting and timing, and has the advantages of simple and convenient operation, high efficiency, higher inspection precision, low cost and suitability for being used in link detection of various auto air condition receiver-driers.

Description

technical field [0001] The invention relates to a pressure vessel leak detection technology, in particular to a leak detection device for a liquid storage drier of an automobile air conditioner and a use method thereof. Background technique [0002] Leak detection is mainly a non-destructive testing method to check whether there is a leak in the pressure vessel under test through the detection medium (gas or liquid), and to measure the size of the leak according to the detection medium, and to quantify and locate the defect. Due to the different materials, the leak detection methods are also different. The more commonly used methods include the penetration leak detection method, the container pressure leak detection method, the ammonia gas leak detection method, the acoustic emission leak detection method, etc. Under the conditions of meeting the requirements of the pressure vessel to be inspected, consider the economy and the simplicity of operation. The current leak detec...

AI Technical Summary

Problems solved by technology

The current liquid storage dryer for automobile air conditioners generally adopts the container pressure leak detection method, but due to the structure of the dryer itself, it is not easy to store gas, and tools are needed for clamping, which is cumbersome to operate, and it is impossible to measure the actual nitrogen gas filled into the dryer. Pressure; the fixture is heavy, the operation is complicated, and the labor intensity is high; there is no special timer, and the detection time is not suitable for grasping; there is no special counter, and the pass rate needs to be calculated manually; the detection efficiency is very low; the fatigue of workers has an impact on the reliability of the test results. bigger

Images