Reciprocating compressor problems
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What happens when reciprocating compressor piston rings leak? What impact will it have on the compressor? How does outlet pressure change? Will it rise?
Efficiency is reduced ~ pressure will not increase
The outlet pressure decreases and the flow rate decreases.
Axial and radial wear of the piston ring of the reciprocating compressor may cause pressure and flow to decrease. Severe wear and tear may cause the cylinder temperature to be too high.
Oh, that's it. I saw in the compressor manufacturer's instruction manual that one of the reasons for the increase in outlet pressure is piston ring leakage. I felt a little wrong, so I brought it up for discussion, and I hope all friends will give me some advice.
If it is a two-stage piston compressor, if the piston ring of the secondary cylinder leaks, it will cause the secondary exhaust to be blocked, which will inevitably cause the pressure at the primary outlet to increase (it can* * Increase one level of gauge pressure)
This will cause the interstage pressure to increase and the outlet flow rate to decrease. The outlet pressure has nothing to do with this and everything to do with system back pressure.
To see clearly the connection between the preceding and following sentences, 6th Floor makes sense. The discharge pressure of the unit is determined by the back pressure.
Ask again: What is the flow and destination of the media leaking from the piston ring? Trouble.
It should be leaking to the low pressure end. I understand it this way: The leakage point of the piston ring is equivalent to the return pipe of the multi-stage centrifugal pump. I don’t know, right?
The outlet pressure should remain unchanged and the flow rate should decrease. The gas leaking from the piston ring comes out of the central body and is flared. It should be because the pressure in the flare line has increased.