I. Brief introduction

    Polytetrafluoroethylene heat exchanger Manufacturing technology is a manufacturing method or technology for making heat exchanger with polytetrafluoroethylene dispersion material as heat exchange tube bundle and suspension material as tube sheet. PTFE heat exchanger technology develops with the continuous development of fluoroplastic technology. The application range of PTFE heat exchanger is gradually expanding. Teflon is also called Teflon, Teflon or Plastic King, or Teflon for short, and its English name is PTFE or Teflon. The fluorine atoms in the molecular structure of PTFE make it have many excellent corrosion resistance and good high and low temperature resistance. In addition to molten alkali metal, liquid fluorine, chlorine pentafluoride and chlorine trifluoride, PTFE is resistant to almost all chemicals, Even in boiled aqua regia, no corrosion will occur. PTFE has excellent comprehensive properties such as corrosion resistance, non-viscosity, flexibility, temperature resistance and aging resistance because of its small surface energy, poor wettability and difficult adsorption of other substances. It is widely used in various corrosion occasions in medicine, chemical industry, electroplating, pickling and other industries.

    Although the heat conduction performance of PTFE heat exchanger is not ideal, the heat transfer coefficient of PTFE is greatly improved because the heat transfer tube is a thin-walled capillary tube, and the heat resistance of the tube wall is small. In addition, the diameter of the heat transfer tube is small (3-10mm), and the fluid in the tube is mostly turbulent, which greatly improves the heat transfer coefficient of PTFE.

    By adopting the latest PTFE heat exchanger manufacturing method, various types of heat exchanger equipment can be manufactured. It is not only suitable for heating by steam, hot water or heat transfer oil, but also suitable for cooling or condensing. PTFE heat exchanger can be used as cooler, heater, evaporator and condenser.

II. Technical features

    The manufacturing technology of PTFE heat exchanger is a collection of more than 20 years' design and manufacturing experience, including a complete set of relevant documents and standards from production equipment, material selection, scheme design, drawing design, production and manufacturing, quality control, etc. The manufacturing method of PTFE heat exchanger has strong operability.

    The key of manufacturing technology of PTFE heat exchanger lies in the welding between PTFE tube sheet and PTFE tube bundle. This technology adopts advanced one-time integral welding, welding is simple and reliable, each welding strength is greater than 15kgf, after welding, the pressure is stabilized under 8kg water pressure for 24 hours without any water seepage