摘要
Abstract
Water cooled power electronic products use deionized water as the cooling medium,and are mostly used in high voltage situations,with high requirements for the cleanliness and sealing of product flow channels.The core heat sink module inside the product has densely packed capillary channels,wherein the freezing and expansion of residual water during the pressure test can easily cause the channels to rupture,resulting in water seepage of the heat sink,and affects the safety of the product.An analysis is conducted on this problem,by combination of theory and practice,it is confirmed that the cause of the problem is that the residual water in the pipeline could not be drained completely.A water pressure testing integrated equipment is then developed,and verification is carried out through testing,solving the cleaning issue and residual water emptying problem in the pipeline system after water pressure testing.By conducting research on the process and project parameters of water pressure testing,the equipment is developed with corresponding configuration requirements and system composition.The pressure testing equipment mainly consists of a circulating water system and a blowing system.The circulating water system supplies flushing water for the tested object,and the blowing system is mainly used for drainage after maintaining pressure.The overall testing process is mainly divided into flushing,maintaining pressure,releasing pressure,and blowing.The test has a dynamic pressure testing function,which can be used to perform dynamic pressure testing on the tested object.Experiment data comparison verifies that the integrated water pressure test equipment solves the problem of cleaning impurities inside the flow channel and pipeline system,and also solves the problem of residual water emptying in the pipeline system after the water pressure test,meeting the testing requirements of water-cooled products,and improving the testing efficiency by 50%.关键词
集成设备/水压试验/水循环管路/进气管路Key words
integrated devices/hydrostatic test/water circulation pipeline/air intake pipeline分类
机械制造
