U-tube heat exchanger introduction

U-shaped tube heat exchanger structure is characterized by only one tube plate, the tube bundle consists of multiple U-shaped tubes, the ends of the tubes are fixed to the same tube plate, the tubes can be free to expand and contract, and when there is a temperature difference between the shell and the U-shaped heat exchanger tubes, there will not be thermal stress.

Due to the limitations of the curvature radius of the bend, the heat exchanger tube row is less, the inner most tube spacing of the tube bundle is larger, the tube plate utilization is lower, the shell fluid is easy to form a short-circuit, which is unfavorable to the heat transfer.When the tube leakage damage, only the outermost heat exchanger tube is easy to replace, the inner heat exchanger tube damaged can not be replaced, only plugged. And a bad U-shaped tube is equivalent to two bad tubes, the scrapping rate is higher.

U-shaped tube heat exchanger structure is relatively simple, inexpensive, strong pressure.Apply to the tube, shell wall temperature difference or shell process media easy to scale need to be cleaned, and is not suitable for floating head type and fixed tube plate type occasions. Especially suitable for the tube to go clean, not easy to scale the high temperature, high pressure, corrosive fluids.