Brazed plate heat exchanger is a non sealed plate heat exchanger that uses a special welding technique to nest and weld the plates together. This frees it from the limited temperature and pressure resistance of ordinary plate heat exchanger rubber pads, and its temperature resistance can reach250Temperature and voltage resistance can reach30Mpa.Due to its adoption of0.3-0.4mmThin plates have further improved their heat transfer efficiency. In addition, due to its non detachable nature, it is generally used for high-purity media and rubber pads that are not resistant to media. Due to its overall structure not being fixed by a frame and using thinner plates like ordinary plate heat exchangers, its assembly area should not be too large, and with current technology, it should not exceed8Square meters, but its heat transfer efficiency is about the same as that of ordinary plates2-3Twice.