I have a question regarding dry gas seals
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This post was last edited by zzz0527haha on 2017-6-20 at 13:55. It relates to the company’s cloned dry gas seal system; the pressure for this seal should originally be 2.5 kilograms, but it is now over 6 kilograms, which exceeds the specified range. Is there air leaking into the system? The main pump is a 10-stage centrifugal pump with an outlet pressure of 65 kilograms.
The pressure gauge must have spilled; it’s beyond its range.
Looking at this control panel, it seems to be a 72 system. A small amount of pressure from the buffer gas is sufficient; too high a pressure is useless and can also cause more nitrogen leakage on the outside. This buffer gas serves to prevent the medium on the medium side from vaporizing on the inner sealing surface, so a high pressure is not required.
The pressure relief valve of the sealing system could be considered; if the sealing is in good condition, the intake valve can be reduced in size
The pressure reducer must be damaged; take it apart and have a look. . . . A safety valve should be installed on the pipeline of this depressurized system. It’s too dangerous. . . . . . .
The amount of sealing gas is too high, or the exhaust valve is closed or opened too slightly.
So, in order to prevent the system from leaking, the amount of nitrogen supplied and its pressure were deliberately increased, is that right?
Hello, can you also provide more detailed answers to some questions? Thank you
It is initially suspected that the pressure regulating valve/reducing valve is damaged! ! Also, for dry gas seals, those from Sichuan Nikki and Chengdu Yitong are relatively better~
Check the pressure relief valve for the sealing gas; if it’s fine, it’s very likely that high-pressure gas from the system is leaking back. Operating in this condition is dangerous
1. Is the pressure gauge damaged? 2. The pressure control valve is broken. Please shut down the machine for inspection; after repairs, operate it at the specified pressure.