A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food, and many other industrial productions. They can be used as heaters, coolers, condensers, evaporators, and reboilers in chemical production. . For example, the low temperature polytetrafluoroethylene heat exchanger for power plants is a new type of equipment for waste heat recovery in power plants to reduce the exhaust temperature.
The use of fluoroplastic heat exchanger can prevent acid corrosion and reduce the flue gas temperature to less than 100 degrees. Zhengzhou University of Technology has successfully developed the technology of polytetrafluoroethylene (F-4) tube sheet expansion and pressure heating welding, which solves the key technology of fluoroplastic tube and tube sheet connection. Subsequently, various types of domestic heat exchangers have been successively Put into actual production and application and achieved good results.