U-tube Heat Exchanger in Petroleum Refining

U-tube heat exchanger consists of shell, tube bundle, tube plate, folding plate and header and other components. The tube bundle consists of U-shaped tubes, the ends of which are fixed on the same tube plate, and the tube bundle can be freely expanded and contracted, which can effectively compensate for thermal expansion and reduce equipment damage caused by thermal stress.

Application Scenarios

Normally Reduced Pressure Distillation (NRPD) Unit: In the process of crude oil distillation under normal reduced pressure, different fractions need to be cooled and heated, the U-tube heat exchanger can be used to cool the high-temperature heavy oil fractions to reach the temperature required for subsequent processing, and it can also be used to heat the crude oil to reach the appropriate feed temperature before entering the distillation column.

Catalytic Cracking Unit: Catalytic cracking is an important process for converting heavy oil into light oil. In this process, the U-tube heat exchanger can be used to cool the reacted hydrocarbons and condense the vapors in the hydrocarbons for subsequent separation and collection of the products. In addition, it can also be used to heat air or other media in the catalyst regeneration process.

Hydrogenation and refining device: Hydrogenation and refining is a key process to improve the quality of oil products, which needs to be carried out at high temperatures and high pressures.U-tube heat exchanger can be used to heat the reaction raw materials to reach the required temperature of the reaction, and can also be used to cool the products after the reaction, recover the reaction heat and improve the thermal efficiency of the device.

Advantages

High Pressure Resistance: Due to the structural characteristics of the U-tube heat exchanger, it can withstand high pressures and is suitable for high pressure environments in the petroleum refining process, such as hydrotreating and refining units.

Resistant to thermal shock: the temperature changes in the oil refining process, the U-tube heat exchanger can compensate for thermal expansion through its own expansion and contraction, effectively resisting thermal shock, reducing the risk of equipment leakage and damage, and improving the reliability and service life of the equipment.

Easy to clean and maintain: U-tube heat exchanger tube bundle can be withdrawn from the shell, easy to clean and maintain the tube and shell process, can effectively remove oil, coking and other impurities, to ensure the heat transfer efficiency of the heat exchanger.

High heat transfer efficiency: through the reasonable design of the structure of the tube and shell process, the U-tube heat exchanger can achieve a high heat transfer coefficient, effectively transferring heat to meet the heating and cooling needs of different materials in the petroleum refining process, and improve the overall efficiency of the device.