There are lots kind of heat exchanger in chemicals industry.Tubular heat exchanger is a traditional product with a wide rang used.Tubular heat exchanger is usual devided into fixed tube plate, floating head type and U type tube.With simple structure and strong adaptability,it is especially more commom in high temperature, high pressure and large equipment.
    Tubular heat exchanger is the most simple structure in the heat exchanger,and it is mainly composed of a cylindrical shell, a heat exchange tube, a tube plate, a head and an inlet and an outlet.The tubular heat exchanger can be fixed by welding or expansion joint, and the shell needs welding flange, which is convenient for cleaning or checking.The end cover and the shell are provided with a hot and cold inlet and outlet pipeline, and the two hot and cold fluid flows in the pipeline.The tubular heat exchanger can be divided into vertical and horizontal according to the placement of the pipeline.The vertical structure is the vertical tube, the horizontal is the opposite.