Leakage at the sealing surface of the heat exchanger head
Thread Content
There is a leak in the sealing surface of the high-pressure heat exchanger in the hydrogenation unit – is there any solution to stop the leak?
Repair the sealing surface and replace the gasket.
I think what they want is to seal the leak without stopping production or removing anything
What size is the flange opening? If it’s small, a clamp could be considered
If there are damage on the sealing surface, it’s difficult to handle the situation; wrapping it in a box or using clamps proves challenging as well. After all, high temperatures and pressures are involved, so it’s recommended to repair the sealing surface. If there is no damage on the sealing surface but the bolts aren’t tightened properly, try heating them to tighten them; if that doesn’t work, then it’s necessary to release pressure before tightening again
Generally, flange leaks are caused by gaskets. The flanges of this high-pressure heat exchanger are too large; it is necessary to consult the construction party to determine whether gaskets can be used, and the cost involved is also relatively high