Dry gas seal
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For two-stage compression centrifuges, the dry gas seal includes: supply gas pressure, seal gas pressure, and isolation gas pressure. I would like to ask what this inflation pressure is?
It should refer to the pressure of the secondary seal gas, right?
Remove one character; it should be \"pre-charging gas\", which is used in double-end face seals, while nitrogen is used as the main sealing gas
It’s just called differently; here we call it the primary sealing gas, the secondary sealing gas, and the isolation gas. The primary sealing gas is also referred to as the pre-sealing gas, while the isolation gas is called the post-sealing gas. These are the various types of sealing gases
The poster can take a look at the gas supply process! Under normal circumstances, both the secondary sealing gas and the isolation gas are supplied from the same nitrogen source. The primary sealing gas, also known as the main sealing gas, is made up of the process gas at the compressor outlet or nitrogen at a certain pressure (switching between these two sources is necessary when starting up or shutting down the system)
It should be the pre-air in the double-end face dry gas seal; the process gas from the compressor outlet is used as the air source, while nitrogen is used during startup and shutdown.
Regardless of the type of pressure, it is necessary to determine where the gas is entering the dry gas seal.