Tube sheets are widely applied in industries such as tubular heat exchangers, boilers, pressure vessels, steam turbines, and large-scale central air-conditioning systems.

A tube sheet is a kind of fitting. It is made by drilling holes slightly larger than the outer diameter of the tubes on a circular steel plate. The tubes are then inserted through these holes and welded in place for fixation. The precision of tube sheet processing, especially the tolerance of tube - hole spacing and tube diameter, perpendicularity, and smoothness, significantly affects the assembly and operational performance of the aforementioned chemical equipment. With the large - scale development of chemical equipment and power plants, the diameters of tube sheets have become increasingly larger. Tube sheets with diameters ranging from 4m to 5m are quite common. Large - scale tube sheets are characterized by a large number of closely - spaced tube holes with small diameters, great depths, and high requirements for precision and smoothness.

Tube sheets are extensively used in industries like tubular heat exchangers, boilers, pressure vessels, steam turbines, and large-scale air-conditioning systems. They are mainly employed in chemical vessels, such as tubular heat exchangers, pressure vessels, boilers, condensers, air-conditioners, evaporators, and seawater desalination plants. Their primary function is to support and fix the tubes. Made of metal, tube sheets not only possess high rigidity but also exhibit excellent thermal conductivity.