The heat exchanger (heat exchanger) is a device that transmits some heat of the heat flow to the cold fluid, also known as the heat exchanger. HEAT exchanger occupies an important position in chemical industry, petroleum, power, food and many other industrial production, and its heat exchanger in chemical production can be used as heater, cooler, condenser, evaporator and reboiler, etc.
For example, a new device for recovering waste heat from flue gas temperature is a PTFE heat exchanger for low temperature in power plant. The fluorine plastic heat exchanger can prevent acid corrosion and reduce the flue gas temperature to 100 degrees. Zhengzhou University of Technology successfully developed Teflon (f 14) pipe plate pressure heating welding process, the key technology to solve fluorine plastic pipe joints and tube plates. Subsequently, the domestic various types of heat exchanger successively put into practical production application and achieve good results.