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During the production process, because the tube sheet of the spiral tube sheet heat exchanger is corroded by moisture, cavitation and trace chemical media, leakage often occurs at the weld seam of the tube sheet, resulting in the mixing of water and chemical materials, and the temperature of the production process is difficult. Control, resulting in the production of other products, seriously affecting product quality and reducing product grades. After the condenser tube sheet weld leaks, the company usually uses traditional repair welding methods to repair it. Internal stress is prone to occur in the tube sheet and is difficult to eliminate, causing other heat exchangers to leak. The company uses pressure and inspection equipment to repair the situation. , Repeated repair welding and experiments, 2 to 4 people need a few days to complete the repair. After a few months of use, the tube sheet welds reappeared corrosion, which brings waste of manpower, material and financial resources to the enterprise, and increases production costs. Through the corrosion resistance and erosion resistance of the Fuschlan polymer composite material, and the protection of the new heat exchanger in advance, this not only effectively controls the welding seam and blisters of the new heat exchanger, but also avoids chemical substances after use Corrosion of the metal surface and welding points of the heat exchanger, in the future regular maintenance, you can also apply the Fuschlan polymer composite material to protect the exposed metal; even if there is leakage after use, it can be repaired in time through the Fuschlan technology. Avoid long-term surfacing welding and maintenance affecting production. It is precisely because of this refined management that the probability of heat exchanger leakage problems is greatly reduced, which not only reduces the purchase cost of heat exchanger equipment, but also ensures product quality and production time, and improves product competitiveness.