Heat exchange tube wall thickness
Thread Content
The outer diameter of the heat exchange tube is 25, the design pressure is 25 MP, the fluid is natural gas, and the material used is S30408. What should be the appropriate wall thickness for this heat exchange tube?
The wall thickness is generally set at 2; the client should carry out calculations taking into account the heat exchanger, to determine whether the requirements regarding strength, stability, and hydrostatic testing are met.
Simply in terms of the pressure resistance of the heat exchange tubes, 2mm is sufficient. However, given such high design pressures, the welding between the tube ends and the tube sheet requires the heat exchange tubes to have a greater thickness as compensation; therefore, it is recommended to increase the thickness by 0.5 mm, using a wall thickness of 2.5 mm.
2-3mm. It won’t exceed this. It’s mainly a strength issue.
It also depends on whether it is a straight tube or a U-shaped tube, etc.; the poster can consider points from floors 2 and 3 as well to decide on the wall thickness.
http://v.youku.com/v_show/id_XODU0ODA3OTA0.html?f=23388572&from=y1.7-1.3 With such high pressure, a rapid pressure testing fixture can be tried for testing