The brazed plate heat exchanger produced by Qingdao Xinquantong is a new type of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape and brazed and processed by brazing. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Compared with conventional shell and tube heat exchangers, its heat transfer coefficient is much higher under the same flow resistance and pump power consumption, and there is a tendency to replace shell and tube heat exchangers in the applicable range. Qianyu Wangpu https://19921.qianyuwang.com/