Compressed air tank
Thread Content
The design pressure is 8.8 MPa, the design temperature is 160 degrees, the diameter is 800, and the length of the cylinder is 1500; it has a vertical structure. What materials would be the most safe and economical choices for the head and the cylinder?
It is safer to use an oval head; for a pressure of 8.8, a cylinder made of Q345R will be sufficient.
But when using Q345R material, the plate thickness increases; 26 is too thick
But when using Q345R material, the plate thickness increases; 26 is too thick
The material is Q345R; 26 doesn’t count as thick； If the poster still thinks it’s too thick, 15CrMoR can be used. It is best to use a spherical head; an elliptical head does not handle stresses as well
Using Q345R is the right choice; 100% RT is sufficient, and a plate thickness of 22 mm is enough.
The choice of material is not only related to pressure and temperature, but also closely associated with the medium. It is impossible to make the right material selection without considering the medium.
Sorry, I misread it; it’s actually a compressed air tank. So Q345R is sufficient; even with a thickness of 26 mm, it’s not considered thick.
Why does compressed air require such a high design temperature?
It is reasonable to use Q345R for this operating condition.