Hot gas by pass valve for compressor
Hot gas by pass valve for compressor
(OP)
Hi,
I would like to know if a hot gas by pass valve is controlled from the anti-surge controller /PLC in the same way as the cold by pass anti-surge valve ?
Is there a dedicated algorithm for hot gas by pass valve and are the same input used (PT, TT at the compressor inlet and outlet and Flow Transmitter) ?
Can it be adapted and used for both trip/start up and limited continuous operation if the delta T due to absence of cooler acceptable ?
Thanks
I would like to know if a hot gas by pass valve is controlled from the anti-surge controller /PLC in the same way as the cold by pass anti-surge valve ?
Is there a dedicated algorithm for hot gas by pass valve and are the same input used (PT, TT at the compressor inlet and outlet and Flow Transmitter) ?
Can it be adapted and used for both trip/start up and limited continuous operation if the delta T due to absence of cooler acceptable ?
Thanks





RE: Hot gas by pass valve for compressor
RE: Hot gas by pass valve for compressor
So same PLC take care of hgbv
Same philosophy for protection (surge protection line etc)
?
RE: Hot gas by pass valve for compressor
Therefore I assume it obeys to a different control logic than the Anti-surge valve.
The valve should go full open if there is a trip signal so If I am correct, the control is not necessary based on surge detection algorithms.