Issues at the large blind flange at the inlet of the catalytic fractionation oil and gas stream
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At the large blind flange used for catalytic fractionation of oil and gas, what measures can be taken to prevent issues such as cracking of the gasket at that flange or gasket leakage after the plant starts up? (In our plant, after injecting reaction oil, we first tighten the large flange thermally, and then contact the construction team to inject coke into the flange enclosure.) How does your plant handle this? I hope all teachers can provide guidance and engage in discussions. Thank you!
I’m hearing about box sealing with glue for the first time; it seems my knowledge is outdated – I need to learn one more thing
When installing the blind plate, it is usually sufficient to apply the gasket first and then tighten it hot twice, and that will resolve the issue. It will not be disclosed unless there are special circumstances.
Don’t you take any measures to prevent leaks?
Hey, why does ours keep leaking so often?
When stopping work again, carefully check whether the sealing surfaces before and after the large blind flange are damaged.
Do you also use ordinary wound gaskets?
For ordinary wound gaskets, one heat treatment is sufficient. The subsequent leakage was caused by exposed flanges and a sudden drop in temperature; improve insulation and implement rainproof measures
Take a look at the old gasket that has been replaced to see how compressed it is; that way you’ll know what to do – whether the problem lies with the sealing surface or with the gasket itself (not enough graphite?) ), it is possible to wrap Teflon tape around it
Isn’t this quite common in catalysis? ! !