A heat exchanger is a device for transferring heat energy between two or more fluids that have thermal contact at different temperatures, or between a solid surface and a fluid, or between a solid particle and a fluid. The plate heat exchanger is composed of a set of metal plates, which are connected by guide rods, and the plate has fixed pressing plates and movable pressing plates on both sides. There are four corner holes on the fixed pressing plate, and the metal plate has a corrugated flow channel and four corner holes. In recent years, the main features of the development of foreign plate-type heat exchangers are high-performance and multi-species. Due to the weak foundation of the experiment, the level of production design is not high in our country, and it is always in the imitation stage. The most important performance of the plate heat exchanger is heat exchange, and the most important parameter for determining heat exchange is heat exchange efficiency. How to improve the heat exchange efficiency of the plate is of great significance to the core technology of the palm plate heat exchanger.