Principles for putting dry gas seals into operation
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Startup: First, activate the dry gas seal control system, and then activate the unit’s lubrication oil system. In the sealing control system, the sealing gas is introduced first, followed by the pre-air, and finally the isolation gas. Oil leakage stage: If there is no pressurized sealing gas inside the casing, all the pre-stage gases can be turned off. Just supply an inert gas. Shutting down: First, shut down the unit’s lubricating oil system. Once it is confirmed that the oil system is safe and free of hot oil mist, stop the isolation air first, then the pre-feed air, and finally the sealing air. If there is pressure inside the casing, neither the pre-pressure air nor the sealing air can be turned off until the pressure inside is zero. 1219773320
To shut down the system, the air supply should be sealed first, followed by stopping the oil pump, and finally shutting off the isolation air
If the sealing gas stops, hydrogen will leak in large quantities, which is not good
Well, once the pressure in the system decreases, stop the dry gas seal. What I mean is that the isolation gas must be stopped after the lubricating oil pump is shut down; otherwise, the lubricating oil might leak into the seal! Got it!
If you read it by yourself, that’s what I mean
The lubricating oil and other systems stop only when the machine temperature is roughly equal to the ambient temperature, rather than the lubricating oil system stopping first
Master, have you ever experienced a shutdown of the press? Could you tell me about the general steps you follow during such a shutdown, including the process of evacuating air?