Taking the second-stage cooler of the air compressor in the synthetic ammonia process as an example, the pipe cracks in the edge area of the heat exchanger tube sheet account for the total number of pipes. Corrosion cracks are mainly distributed in the edge of the pipe, the expansion area and the gap area between the two.There are two types of corrosion of heat exchanger tubes: general corrosion and local corrosion. When general corrosion is thinned, the life can be predicted. The accumulation or adhesion of relics on the inside of the heat exchanger pipe is also prone to pitting corrosion. 70%, the solution reboiler of the synthetic ammonia decarburization system has undergone a whole heat exchanger update due to a large number of penetrating cracks in the expansion tube area.. Corrosion at the welded or expanded joint between the heat exchanger tube and the tube sheet. FHC210 Heat Exchangers Corrosion of the pipe end 40-50mm away from the inlet end of the pipe occurs most often, which is related to the coexistence of eddy current wear and corrosion of the inlet mediumThis method is also used by many people, but this method also has a shortcoming, that is, our cost will increase. Because after we increase the heat transfer area, there will be better heat transfer opportunities and effects when the hot and cold fluids are in contact with the plates. Another method is to increase the temperature difference between the hot and cold fluids of our heat exchanger.. The most direct and most used way.Therefore, when using this method, many people generally first determine the actual situation.Two ways to improve the heat transfer efficiency of heat exchangers: Now we have one way to increase our heat transfer area, which is the simplest way for heat exchangers to increase the heat transfer efficiency and heat transfer intensity of the heat exchanger
