In recent years, with the improvement of people's living standards, the demand for food has been strong, which has promoted the rapid development of the food industry. In order to pursue low cost and high efficiency, many food companies continue to expand their production scale, which has led to the development of food machinery and equipment in the direction of large-scale, continuous and automated production. On the other hand, according to the market diversification needs, especially the processing of some agricultural and sideline products has its seasonal characteristics, requiring equipment to adapt to multi-purpose production, in order to establish a production system that can be multi-variety, small and economical. Therefore, as the most basic operation in food processing—Plate heat exchangers for heating, sterilization, and cooling are also suitable for multi-variety and small-volume production. It is necessary to heat-treat various physical materials and process seasonal products. This not only expands the scope of application, but also improves the efficiency of operation. Due to the increasingly complex food processing, it is necessary to design and manufacture heat exchange equipment according to the production characteristics of the industry. While using the production equipment, we must also pay attention to prevent the adhesion of the scale, and take effective cleaning and sterilization to control microbial reproduction. Basic measures.