The double tube plate heat exchanger developed and produced by the company has achieved good performance by using CNC punching machine for automatic tube plate welding and self-made tube expander for expansion. The structural feature of the double tube plate is that two tube plates completely separate the medium of the tube side and the shell side, solving the working condition where the two media cannot be mixed, thereby achieving high purity and high quality of the produced products. There are two symmetrical discharge holes at the position where the isolation chamber between the outer tube plate and the inner tube plate is connected, which discharge the leaked medium. It has been used in facilities such as Chongqing Sanyang Chemical and Sichuan Sifeng Materials Company, and users have reported good results.
