Tube sheet, which is a round steel plate with holes slightly larger than the outer diameter of the tube, is used to fix the tube and seal the medium in the heat exchanger. It is a kind of fitting that can penetrate the pipe and fix it by welding.
With the large-scale of chemical equipment and power station, the diameter of tube sheet becomes larger and larger, and tube sheet with a diameter of 4 m-5 m is very common. Large tubesheet is characterized by large number of tube holes, dense, small diameter, deep, high precision and finish requirements.
Tube sheet is mainly used in chemical vessels, such as tubular heat exchangers, pressure vessels, boilers, condensers, central air conditioners, evaporators, and seawater desalination, to support and fix the tubes. The metal material makes it not only very rigid, but also has great heat conduction performance.