U-shaped tube heat exchanger, each tube is bent into a U-shaped shape, and both ends are fixed on the same tube plate. Each tube can be freely extended and extended to solve the problem of thermal compensation. The tube has at least two passes, the tube bundle can be removed for cleaning, and the tube can expand freely. Its disadvantages are difficulty in cleaning the inner wall of the pipe, difficulty in replacing the pipe, and fewer pipes arranged on the pipe plate. The advantages are simple structure, light weight, and suitability for high temperature and high pressure conditions.
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