Utilization of bogdown of single-shaft gas turbines to minimize relief flows in baseload LNG plants

摘要

Apparatus for regulating a driver, such as a single-shaft gas turbine, driving a gas compressor, such as a refrigerant compressor in a baseload LNG plant. The compressor has a gas inlet and a gas outlet and includes: a recycle pressure relief device in fluid communication with the gas outlet, the recycle pressure relief device adapted to receive a stream of a compressed gas having a discharge pressure from the gas outlet; and a conduit in fluid communication with the gas inlet, whereby the gas inlet receives at least a portion of the stream of the compressed gas transmitted to the conduit from the recycle pressure relief device when the discharge pressure reaches a designated pressure.