Treatment of high-pressure flange leakage in hydrocracking
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I’m new to hydrocracking units and would like to ask everyone for advice on dealing with leaks in high-pressure flanges. Should I first reduce the pressure and then tighten the connections? If that doesn’t work, should I use a relief valve set at 0.7 PMa?
A leak in a high-pressure flange usually requires shutting down operations; firstly, it’s not possible to get close enough to tighten it, and secondly, once there is a leak in a high-pressure flange, it’s impossible to tighten it anyway.
As far as I know, in some factories it is possible to carry out operations under pressure; I wonder if you have the capability to do that!
In the case of a leak in a high-pressure flange, first assess the amount of leakage. If the leakage is minor, it can be fixed by tightening the connection or by sealing it under pressure (using clamps and adhesive). If the leakage is severe, emergency shutdown procedures must be followed.
There used to be a heated discussion thread; the original poster should take a look
The person in charge is right. Each specific issue needs to be analyzed individually; it’s not possible to make generalizations.
In the event of a leak in a high-pressure flange, it is essential to ensure the safety of personnel and prevent burns; if necessary, first-aid kits can be used to provide assistance, or efforts should be made to shut off the relevant pipeline before dealing with the issue.
Leaks in high-pressure flanges depend on the specific circumstances. For example, at the beginning of operation, some flanges in high-pressure systems may experience minor leaks due to uneven heating; in such cases, it is sufficient to keep a close eye on them, as the problem usually resolves once the temperature returns to normal. Additionally, some leaks can be fixed using a torque wrench by mechanics, and emergency shutdowns are only necessary when the leak is severe enough to pose a danger.