Since the 1920s, plate heat exchangers used in the food industry have been compact and have good heat transfer effects, so they have evolved into various forms. Nowadays, heat exchangers are widely used as heat transfer equipment. They are widely used in industry, especially in areas with high energy consumption. With the rapid development of energy-saving technologies, there are more and more types of heat exchangers, which are suitable for different media. The structure and type of heat exchangers with different working conditions, different temperatures and different pressures are also different. The types of heat exchangers are continuously updated with the development of new and efficient heat exchangers. The specific classifications are as follows:
1. Hybrid heat exchanger
The main working principle of this type of heat exchanger is that the two media exchange heat with each other to achieve heat transfer, and the contact area directly affects the heat transfer amount. The medium of such heat exchanger is usually a gas and the other is a liquid. Mainly based on the cooling water tower equipment as the main heat transfer equipment, but usually involves mass transfer, it is difficult to distinguish the relationship with the tower, usually based on tower equipment, chemical plants and power plants with cooling towers as the most typical Hybrid heat exchanger.
2. Energy storage heat exchanger (referred to as accumulator)
The principle of this heat exchanger is that after the heat medium reaches a certain temperature by heating the solid matter, the cold medium is heated by the solid matter, and the heat and the cold alternately make it reach the heat transfer amount. Mainly used to recover and utilize the heat of high temperature exhaust gas.
3, partition wall heat exchanger
The principle of this type of heat exchanger is that the cold and hot media are separated by the solid partition and exchange heat through the partition. The amount of such heat exchanger is very large, accounting for 99% of the total. According to the structure, it can be divided into tube type, plate type and other types.
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