shvet
Petroleum
- Aug 14, 2015
- 693
Hello, forum
I have a packed rectification column 2.2x25m, operating at vacuum 30kPaa@200°C, installed outdoor, no roof, no windshield, continious operation >8k h/y. An engineering contractor has proposed no access holes and shell devided by flanges, spiral-wound gaskets for piping&instrumentation flanges, asbestos gasket for shell flanges.
I appeal to mech engineers involved in rectification design befor. Please comment is it possible to find a gasket material suitable for such service? My concerns are mostly related to bottom flange:
wind load + column weight + packing weight + liquid weight = uncontrollable air leak
PS
Please do not recommend change the design. I know, I know...
I have a packed rectification column 2.2x25m, operating at vacuum 30kPaa@200°C, installed outdoor, no roof, no windshield, continious operation >8k h/y. An engineering contractor has proposed no access holes and shell devided by flanges, spiral-wound gaskets for piping&instrumentation flanges, asbestos gasket for shell flanges.
I appeal to mech engineers involved in rectification design befor. Please comment is it possible to find a gasket material suitable for such service? My concerns are mostly related to bottom flange:
wind load + column weight + packing weight + liquid weight = uncontrollable air leak
PS
Please do not recommend change the design. I know, I know...
