The application of heat exchangers in the refining industry is very extensive, and its importance is also obvious. The use of heat exchange equipment directly affects the efficiency of the refining process and the cost of the problem. According to statistics, heat exchangers account for about 1/5 of the investment in chemical construction. Therefore, the utilization and life of heat exchangers are important issues worth studying.
From the point of view of the damage of the heat exchanger, corrosion is a very important reason, and the corrosion of the heat exchanger is widespread. Being able to solve the corrosion problem is equivalent to solving the root cause of the heat exchanger damage. In order to prevent the corrosion of the heat exchanger, the root cause of the corrosion must be clarified. The reasons for the corrosion of the heat exchanger are discussed from the following aspects.