Introduction to the development history of heat exchangers
Plate heat exchangers appeared in the 1920s and were used in the food industry. The heat exchanger made of plate tube has compact structure and good heat transfer effect, so it has been developed into various forms one after another. In the early 1930s, Sweden made spiral plate heat exchangers for the first time. Then the United Kingdom manufactured a plate-fin heat exchanger made of copper and its alloy materials by brazing for heat dissipation of aircraft engines.
In 1926, the British Auston Chunyi used the indoor return air and the outdoor fresh air to form a positive cross. Due to the temperature difference and the water vapor partial pressure difference between the airflows on both sides of the flat partition, heat and mass transfer occurred simultaneously between the two airflows. , cause the whole heat exchange process, through the heat exchange to achieve indoor and outdoor air circulation built-in air supply and exhaust fans, two-way equal displacement, inhibit the change of room temperature, and keep enough fresh air in the room.
In the late 1930s, Sweden produced the first plate and shell heat exchanger for pulp mills. During this period, in order to solve the heat exchange problem of strong corrosive media, people began to pay attention to heat exchangers made of new materials. Around the 1960s, due to the rapid development of space technology and cutting-edge science, various high-efficiency and compact heat exchangers were urgently needed. Coupled with the development of stamping, brazing and sealing technologies, the heat exchanger manufacturing process was further improved. Thereby promoting the vigorous development and wide application of compact plate heat exchangers.
In 1926, the British Auston Chunyi used the indoor return air and the outdoor fresh air to form a positive cross. Due to the temperature difference and the water vapor partial pressure difference between the airflows on both sides of the flat partition, heat and mass transfer occurred simultaneously between the two airflows. , cause the whole heat exchange process, through the heat exchange to achieve indoor and outdoor air circulation built-in air supply and exhaust fans, two-way equal displacement, inhibit the change of room temperature, and keep enough fresh air in the room.
In the late 1930s, Sweden produced the first plate and shell heat exchanger for pulp mills. During this period, in order to solve the heat exchange problem of strong corrosive media, people began to pay attention to heat exchangers made of new materials. Around the 1960s, due to the rapid development of space technology and cutting-edge science, various high-efficiency and compact heat exchangers were urgently needed. Coupled with the development of stamping, brazing and sealing technologies, the heat exchanger manufacturing process was further improved. Thereby promoting the vigorous development and wide application of compact plate heat exchangers.