Air-conditioning heat exchanger leakage point detection method and detection platform

Abstract

An air-conditioning heat exchanger leakage point detection method includes the following steps: first detection gas is injected into a vacuumized heat exchanger to perform primary gas detection; after the gas detection is finished, the first detection gas is recycled; the heat exchanger and an air supplying module are assembled; secondary gas detection is performed on the assembled heat exchanger; if a leakage point alarm is given, leakage point detection is performed on the heat exchanger again to determine a leakage point position; and if no leakage point alarm is given, the first detection gas is recycled. In addition, the invention also discloses a heat exchanger leakage point detection platform using the abovementioned method. Through the method and platform provided by the invention, a leakage point detection capability is improved by 100 times than an existing technology, and the method does not need to add any medium; leakage point detection precision of the heat exchanger is improved, the problem of air conditioner internal unit microleakage is fundamentally eliminated; and the method and platform are environment-friendly, can replace an original technology, and are optimized in technology and system.

Description

technical field [0001] The invention belongs to the field of air conditioner manufacturing, and in particular relates to a method for detecting leaks in an air conditioner heat exchanger and a detection platform thereof. Background technique [0002] During the manufacturing process of air conditioners, heat exchangers often leak, such as welding leaks, cracking leaks, etc., so it is necessary to check for leaks after the heat exchanger is prepared and assembled with the air supply module of the air conditioner; After the heat exchanger and the air supply module are assembled, the heat exchanger is usually checked for secondary leaks using the pressure retaining cap. The leak detection accuracy of the red dot inspection through the pressure retaining cap is too low, and human touch is required to judge whether the heat exchanger is leaking or not. Leakage, although large leaks can be detected, but small leaks such as welding leaks and cracked leaks cannot be detected, so tha...

AI Technical Summary

Problems solved by technology

[0003] In view of this, in order to solve the problem in the prior art that there are micro-leakages in the heat exchangers during the manufacturing process of the air-conditioning heat exchangers on the assembly line, and such micro-leakages are difficult to detect, the purpose of the present invention is to propose A method for detecting leaks in air-conditioning heat exchangers

Images