Heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers are common equipment in the chemical, petroleum, power, food and many other industrial sectors and occupy an important position in production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers. There are many types of heat exchangers, but the principles and methods of heat exchange between cold and hot fluids can be basically divided into three categories: partition, hybrid and regenerative. Among the three types of heat exchangers, the partition wall heat exchanger is the most widely used. Type of wall heat exchanger According to the principle of action, it can be divided into a partition wall heat exchanger, a regenerative heat exchanger and a hybrid heat exchanger. According to the purpose of use, it can be divided into a cooler, a heater, a condenser and a vaporizer. According to the structural material, it can be divided into a metal material heat exchanger and a non-metal material heat exchanger. According to the shape and structure of the heat transfer surface, it can be divided into a tube heat exchanger and a plate heat exchanger. According to the use, it can be divided into collective heating heat exchangers and household heat exchangers.
