Can the high-pressure flanges of a hydrogenation unit be tightened under pressure?
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Can the high-pressure flanges of a hydrogenation unit be tightened under pressure?
. . . That’s way too dangerous.
Isn’t thermal tightening just fastening under pressure?
Nothing is impossible; there are methods for sealing leaks using hydrogen pressure as well. It depends on the risk assessment. Years ago, I worked with workers on high-pressure hydrogen flanges – such devices can experience static electricity-induced explosions, so it’s important to consider the amount of leakage
Hydrogen is a highly explosive substance; its low molecular weight makes it prone to leakage, and operating it under pressure is dangerous
Many people say it’s not possible; does one have to relieve the pressure if there’s a leak?
High-pressure flanges go through a heat-shrinking process.
It depends on the specific situation; copper tools can be used for restraint, or fixtures can be made for that purpose