Dry gas seal of cycle hydrogen compressor
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Today, when starting up the cyclohydrogen machine, it was found that there was significant leakage from the primary dry gas seal, and this leakage tended to increase as the system pressure rose. During startup, fluctuations in the inlet and outlet flow rates were observed, with the amplitude of these fluctuations gradually decreasing until stability was achieved after about 3 hours. In previous startups, the operation was quite stable. Is there anyone among you who can help explain this? I would be extremely grateful
Check if the flow rate of the corresponding primary seal gas is normal
Is the dry gas taken from the outlet of the hydrogen circulation machine or from the outlet of the new hydrogen machine?
Check whether there is any change in the flow rate of the primary sealing gas, as well as any change in the filter pressure drop; also determine whether the sealing gas is recycled hydrogen or fresh hydrogen
I have the same problem; the gas leakage rate is quite high now
Did any reversal occur during startup? Was there liquid present in the dry gas? If the leakage gas flow rate is high, it indicates that the dry gas seal has been damaged.
It’s a normal situation; the press will work properly after running for some time
When the machine starts up, does the pressure pump start as well?