1, plate-shell heat exchanger is a heat exchanger with corrugated plate tubes as heat transfer elements, which combines the advantages of high heat transfer efficiency of plate heat exchanger and strong pressure-bearing capacity of shell-and-tube heat exchanger, with high heat transfer efficiency, small temperature difference at the end and small pressure drop.

2. The invention has the advantages of high heat transfer efficiency, compact structure, good vibration resistance, good thermal expansion resistance caused by high temperature difference and good sealing performance, and can adapt to the working condition of high medium pressure; The dead zone of heat exchange is greatly reduced, and there is no pressure difference between media, but it is difficult to manufacture.

3. Choosing the wrong material will affect the heat exchange area of the heat exchanger. Many people often choose a plate heat exchanger with a small heat transfer coefficient, and choose a suitable material with a large heat transfer coefficient, that is, a material with a small thermal resistance.

4. When the plate heat exchanger is running, different liquid flow rates will also affect the heat transfer efficiency. On the one hand, low flow rate will lead to excessive thickness of stagnant layer on the wall, and on the other hand, it will be blocked.