What are the on-site solutions for equipment flange deformation?
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Our company has a DN2000 flange on the \"sulfur and carbon capture\" unit, which has been leaking since it was first put into use; replacing the gaskets several times did not resolve the issue. Use a pressure of 3.5 kg and a temperature of 200 degrees Celsius. In my opinion, it is caused by flange deformation. But I would like to ask: 1. How is the detection and determination of flange deformation in equipment carried out? 2. How to repair it after deformation? It’s best to do so on-site and quickly
It’s not easy to fix; are there any experts who can offer some advice on how to do it?
Has the problem been solved? If you have similar questions, feel free to contact me on this platform.
On-site repair should be difficult to achieve. It is recommended to measure the flatness of a pair of equipment flanges using the method specified in HG/T 2637-2011, and then customize a gasket.
1. The most basic method is to draw two crosshairs on the flange sealing surface; by checking whether there is any gap or overlap at their intersection point, it’s possible to determine if there is any deformation. When the deformation is severe, it’s quite obvious. 2. If leakage already existed from the beginning, didn’t you ask the manufacturer to fix it? Were there no leaks in their factory tests?