Is it necessary to specify a certain pressure in kilograms for the design of atmospheric deaerators?
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This post was last edited by huizipp on 2015-11-16 at 13:48. For atmospheric deaerators, the operating pressure is only in the range of a few dozen kilopascals; then why is it common to choose a design pressure of 0.2–0.8 MPa? With an exhaust pipe, a water seal, and a safety valve present, is it really necessary to use such a high value? Will steam build up pressure? Will it really work? Equipment manufacturers prefer not to design them as pressure vessels. Let’s discuss this together!
I’m seeking advice from experts; I’d like to learn it too :D
The conditions required by the process may include the pressure-bearing capacity under extreme conditions; in that case, it must be designed as a pressure vessel； If it’s impossible to withstand pressure even under extreme conditions, there’s no need to make it into a pressure vessel; however, safety valves are still very necessary. The above are merely personal opinions; the specific requirements will depend on the design criteria of the process package.
Atmospheric deoxidizers operate at low pressures; they are generally considered pressure vessels, but not pressure vessels subject to regulatory oversight