US 12,305,653 B2
Compressor system
Keizo Yoneda, Hiroshima (JP); Takeshi Hataya, Hiroshima (JP); and Nobuyuki Horii, Kanagawa (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, Tokyo (JP); and MITSUIBSHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/778,217
Filed by MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, Tokyo (JP); and MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Dec. 7, 2020, PCT No. PCT/JP2020/045460
§ 371(c)(1), (2) Date May 19, 2022,
PCT Pub. No. WO2021/124953, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 2019-230295 (JP), filed on Dec. 20, 2019.
Prior Publication US 2022/0412366 A1, Dec. 29, 2022
Int. Cl. F04D 25/04 (2006.01); F01D 17/20 (2006.01); F02C 3/045 (2006.01); F02C 3/10 (2006.01); F02C 6/00 (2006.01); F04D 27/00 (2006.01)
CPC F04D 25/04 (2013.01) [F01D 17/20 (2013.01); F02C 3/045 (2013.01); F02C 3/10 (2013.01); F02C 6/00 (2013.01); F04D 27/009 (2013.01); F05D 2220/32 (2013.01); F05D 2220/74 (2013.01); F05D 2260/606 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A compressor system comprising:
compressor trains each of which comprises:
a multi-shaft gas turbine; and
a compression unit comprising a first compressor and a second compressor both driven by the multi-shaft gas turbine, wherein the second compressor compresses a different fluid than the first compressor does;
a first fluid supply unit that:
comprises a fluid supply source, and
distributes and supplies a fluid supplied from the fluid supply source to the first compressor of each of the compressor trains,
a second fluid supply unit that:
is independent of the first fluid supply unit, and
distributes and supplies the different fluid under different conditions to the second compressor of each of the compressor trains, and
a control unit configured to control operating conditions of the compressor trains, wherein
the multi-shaft gas turbine of each of the compressor trains comprises:
a gas turbine compressor that:
comprises a compressor rotor, and
compresses air with rotation of the compressor rotor;
a combustor that produces a combustion gas by using: the air compressed by the gas turbine compressor, and fuel;
a high-pressure turbine that comprises a high-pressure turbine rotor that:
is mechanically connected to the compressor rotor, and
is rotationally driven by the combustion gas; and
a low-pressure turbine that comprises a low-pressure turbine rotor:
disposed separately from the high-pressure turbine rotor, and
rotationally driven by the combustion gas after the high-pressure turbine rotor is rotationally driven,
the low-pressure turbine rotor rotates independently of the high-pressure turbine rotor,
the compression unit of each of the compressor trains further comprises a pressure sensor that:
acquires a pressure value of a pressure at a suction port of the second compressor, and
sends information about the pressure value to the control unit,
a first compression unit rotor of the first compressor is mechanically connected to the low-pressure turbine rotor,
a second compression unit rotor of the second compressor is mechanically connected to the first compression unit rotor,
the compressor trains are configured to operate independently or in parallel,
the compressor trains include a first compressor train and a second compressor train,
the control unit is configured to decrease, in response to stoppage of the second compressor train while the first compressor train continues to operate, a flow rate of the fluid supplied to the first compressor of the operating first compressor train, and:
the control unit is configured to increase, in response to the pressure value acquired in the operating first compressor train exceeding a predetermined reference value, an amount of the fuel supplied to the combustor of the operating first compressor train to increase a rotation speed of the low-pressure turbine rotor of the operating first compressor train.