Shandong heat exchanger cleaning, in oil refining, chemical industry, the vast majority of the process has heating, cooling and condensation process, these processes are collectively known as the heat exchange process. The process of heat transfer needs certain equipment to complete, which makes the heat transfer process to be realized is called heat exchange equipment. According to statistics, the investment of heat exchange equipment in refineries accounts for 35% ~ 40% of the total investment of all process equipment, because the vast majority of chemical reactions or mass transfer and heat transfer processes are closely related to the change of heat. For example, in the reaction process, some need to release heat, some need to absorb heat, and in order to maintain the continuous reaction, it is necessary to eliminate the excess heat or supplement the required heat; In order to reduce the cost, the cleaning heat or waste heat of some waste heat exchangers in the process also needs to be recycled. In addition, the resulting oil or chemical products need to be cooled or condensed for storage and transportation. All of the above heat related processes require the use of heat exchange equipment. The use of heat exchange equipment is to achieve the purpose of heating or cooling. If the fluid that needs to be heated and the fluid that needs to be cooled are exchanged through the heat exchange equipment, the heat can be recovered and the consumption of cooling water can be reduced. To sum up, heat exchange equipment is an indispensable important equipment in oil refining and chemical industry. Heat exchange equipment is also widely used in power, atomic energy, metallurgy, food and other industrial sectors. 1. High efficiency. High efficiency requires high heat transfer coefficient. Heat transfer coefficient cleaning refers to the heat transfer per degree of temperature change in unit time and unit area. Compact structure. In order to make the structure of heat exchange equipment compact, its specific surface area is required to be large. Specific surface area refers to the heat transfer area of unit volume of heat exchange equipment, that is, the ratio of heat transfer area to the volume of heat exchange equipment. Save materials. To achieve this, the specific weight is required to be small. The so-called specific weight refers to the metal consumption per unit heat transfer area, that is, the ratio of the total metal consumption of heat exchange equipment to the heat transfer area. The pressure drop should be small. The flow resistance of fluid in the equipment is small, the pressure loss is small, the power is saved, and the operation cost is reduced. It requires reliable structure, low cleaning cost, easy installation, maintenance and long service life. Because it is very difficult to meet the above requirements, a variety of heat exchangers are produced to adapt to a variety of specific process conditions. 2.3.4.5. There are many classification methods of heat exchange equipment, and several common classification methods are introduced as follows: 1. According to the purpose, it is divided into five categories: heat exchanger, condenser, evaporator, heater and cooler. 1) heat exchanger: two kinds of media with different temperatures exchange heat to make one media cool down and the other media warm up to meet their respective needs. 2) Condenser: heat exchange between two media with different temperatures, one of which is condensed into liquid from vapor state. 3) Evaporator: opposite to the operation of condenser, one of the two media is evaporated from liquid to vapor. 4) Heater: only complete the operation of heating a medium. 5) Cooler: if the heat is not recycled, the heat exchanger that uses coolant (such as water and air) to cool another medium is called cooler. If air is used as coolant, the heat exchanger cleaned by Shandong heat exchanger is called air cooler.