Patent ID: 7269956
Filing Date: 2007-09-18
Classification: F01K,F02C,F04D,Y02E,Y02P

Abstract:
1. A device for utilizing the waste heat of one or more series-connected compressors or compressor stage groups for compressing a gas, the device comprising: an intercooler arranged in the gas flow between a first and said second of the compressors or between two of the compressor stage groups, said intercooler having heat exchanger surfaces; a steam turbine driving a generator; a steam generator, said intercooler heat exchanger surfaces being operatively connected to said steam generator, said steam generator having a feedwater preheater, an evaporator, a superheater, a condenser, a degasser and a feedwater pump for said steam turbine; an aftercooler with heat exchanger surfaces arranged downstream of said second compressor or downstream of said compressor stage groups, said intercooler heat exchanger surfaces and said aftercooler heat exchanger surfaces being in series flow communication with said feed preheater and in flow connection with said feedwater pump, said evaporator and said superheater of said steam generator.