Hi;
I have a 2-stage (tandem) reciprocating compressor train. Each stage has a recycle valve to control the suction pressure.
The compressor capacity is control by:
• Speed control (only by the 1st stage suction pressure)
• Clearance pocket
During the HAZOP of the project, it was requested to...
Hi;
The capacity of a reciprocating compressor is controlled by "variable speed drive " and "pocket clearance". The compressor train has a recycle valve to control the pressure at the compressor suction scrubber ( transmitter is located at the compressor suction scrubber). This is required to...
Hi;
I have been requested to consider a minimum recycle line for a variable speed electrical reciprocating compressor train which it should be used to protect the system for the train blocked discharge case.
For a centrifugal compressor, it is normal to consider a minimum recycle line but for a...
Hi;
I am investigating a reciprocating compressor suction blockage case. In case of the suction scrubber demister blockage about 1 minutes takes till the compressor driver stops. So during this one minute, the compressor cannot have any feed gas as the recycle valve is recycling the gas to the...
Hi ;
Is it possible that one stage of a two throw , two stage reciprocating compressor run while the other one is stopped?
if yes, except the shaft failure , is there any other possible failure cases to have this scenario ?
Hi;
For a reciprocating compressor, the recycle valve failure is one of the suction PSV sizing scenarios. As during the reciprocating compressor start-up, the discharge Shutdown valve (SDV) should be kept open ( not same as centrifugal compressor which it should be closed), so failure of both...
Hi;
As I know for the centrifugal compressors, the stonewall protection is an optional protection (is not mandatory same as Anti-surge protection). However operating in the stonewall condition also damage the compressor so I am thinking if there is no stonewall protection, maybe it should be...
