Compressor Controls
Compressor Controls
(OP)
Dear Friends!
Happy Morning!
We have two Reciprocating Compressor trains which are not working for the past two years, in our Gathering Centres. In this compressor train, i found one control logic that controls the pressure of Final Oil accumulator of the third stage (KOD)with the make up gas line flow control valve to the suction of the first stage.
Have anybody come across such system? If so, please explain the system and how this will work. Since the documents related to these trains are not available, i am not able to understand this.
Thanks for everything,
Yours Truly,
A.Thirumaran
Happy Morning!
We have two Reciprocating Compressor trains which are not working for the past two years, in our Gathering Centres. In this compressor train, i found one control logic that controls the pressure of Final Oil accumulator of the third stage (KOD)with the make up gas line flow control valve to the suction of the first stage.
Have anybody come across such system? If so, please explain the system and how this will work. Since the documents related to these trains are not available, i am not able to understand this.
Thanks for everything,
Yours Truly,
A.Thirumaran





RE: Compressor Controls
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"Pumping systems account for nearly 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Compressor Controls
2) Normally, this scheme use for Centrifugal type not reciprocating type.
3) Reciprocating is prone for fixed volume of inlet flow( by inlet guide vane,etc),if suction can not fixed incoming flow yor compressor will has short life, which has easy for machine breakdown, except you have variable speed to reflect the variance of flow
4) It was not easy to control 2 parallel reciprocating type, since one compressure should control flow rate another one should control pressure.
RE: Compressor Controls
Thanks for your replies. I would like to clarify on some points based on your replies.
1.We do not have "High Pressure Oil" based control in the system. We have a digital signal coming from the pressure transmitter that goes to the controller which gives final input to the control valve located in the make up gas line to the suction of the first stage of the compressor.
2. The two trains are reciprocating machines.
3. In our system, either one of the compressor train used to run and the other is kept as a standby.
My understanding of the compressor controls indicates that
For a given compression ratio of the compressor, if the suction pressure is maintained, is it not enough to ensure constant discharge pressure. Am I right or otherwise?
Advanced thanks for all the help and response.
Cheers to life,
ATM
RE: Compressor Controls
**********************
"Pumping systems account for nearly 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Compressor Controls