When the catalytic air compressor shuts down due to interlock, does the counter-rotation control valve also engage in interlocking?
Thread Content
Dear sea friends! As the title asks, \"When the catalytic air compressor shuts down due to interlock, does the reverse flyback control valve also engage in interlocking?\" ”Which fellow marine engineer could please explain how the anti-backlash mechanism is configured in terms of the self-protection logic of your company’s catalytic air compressors? Thanks first!
I understand that in some cases, the reverse movement is fully activated when the pressure pump shuts down due to interlock； Some do not use interlocking, but are only linked to the unit’s anti-surge system.
From the perspective of unit safety, I believe it should be set to shut down the compressor with the anti-rotation mechanism fully activated. Gentlemen, please help analyze it!
From a safety perspective, the reverse flyback should be fully open when the compressor shuts down due to interlock； And it is interlocked with the unit anti-surge system.
Fully closed is also acceptable; a flare is placed at the inlet, and a safety valve is available at the outlet
I think, from the perspective of preventing surge in the compressor, in order to ensure that no pressure buildup occurs at the compressor outlet after shutdown, the reverse flow valve should be opened.
We have the chain in reverse flight mode with everything fully activated. This is safer
This depends on the overall unit interlock logic diagram; if the flare is activated, the counter-rotation feature may not need to be activated
This depends on the overall unit interlock logic diagram; if the flare is activated, the counter-rotation feature may not need to be activated
We placed a torch at the entrance; it flew back and couldn’t move
Are the backflow prevention and anti-surge functions you’re talking about referring to the same valve? I recall that in our catalytic compressor safety interlocks, the valve controlling the flare is opened fully, while there is no interlock for anti-surge functionality.