What is the function of a finned heat exchanger

Finned radiators and heat exchangers are the most widely used heat exchange equipment in gas and liquid heat exchangers. It achieves the purpose of enhancing heat transfer by adding fins to the ordinary base tube radiators. The base pipe can be steel pipe,stainless steel pipe, copper pipe and so on. The fins can also be steel strips; stainless steel strips, copper strips and aluminum strips etc.Weichuang Radiator uses copper tubes for the base tube, and high-quality copper fins and aluminum fins for the fins.

The fin pitch mainly considers factors such as dust accumulation, dust formation, and easy-cleaning.It must strictly comply with the equipment's pressure drop requirements. When arranging, the distance between the tube and the tube should not be too large, generally> 1mm is suitable for tube layout. In the process of heat exchange, when the air flows through the finned heat exchanger and the finned radiator, the front and back sides of the fins mainly participate in the heat exchange. There is only a small amount of radiant heat transfer in the middle of the two finned tubes, and the heat transfer effect is not obvious. Since this part has no fins and resistance, the air is easy to penetrate. In the process of air heating, the unheated cold air will neutralize the heated hot air passing through the middle of the fins, which will reduce the heat exchange effect. Compared with foreign finned tube heat exchangers, the tube spacing is only 0.5mm larger than the outer diameter of the fins, which shows the importance of tube spacing when finned tubes are arranged.