A heat exchanger is a device that transfers part of the heat of the hot fluid to the cold fluid. Heat exchangers occupy an important position in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers.
The tube sheet of the heat exchanger is corroded by moisture, cavitation and trace chemical media, and leakage often occurs at the weld of the tube sheet. This leads to the mixing of water and chemical materials, the temperature of the production process is difficult to control, resulting in the production of other products, and seriously affecting product quality. After the weld of the condenser tube sheet leaks, internal stress is easily generated inside the tube sheet, which causes leakage in other heat exchangers. Repeated repair welding and experiments require 2 to 4 people to repair it in a few days. After a few months of use, the tube sheet welds corroded again, which caused waste of manpower, material and financial resources and increased production costs. Through the corrosion resistance and erosion resistance of polymer composite materials, the new heat exchanger is protected in advance. This not only effectively cures the welding seam and blisters problem of the new heat exchanger, but also prevents the chemicals from corroding the metal surface and welding points of the heat exchanger after use. In the future regular maintenance, you can also apply polymer composite materials to protect the metal. Even if there is leakage after use, it can be repaired in time to avoid long-term surfacing welding and maintenance affecting production.