Gas turbine device using supercritical fluid as cooling fluid

Patent metadata

Field	Value
Publication number	US-9638104-B2
Application number	US-201414262970-A
Country	US
Kind code	B2
Filing date	Apr 28, 2014
Priority date	Dec 12, 2013
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

The present invention relates to a gas turbine device using a supercritical fluid as a cooling fluid, the gas turbine device having a compressor for compressing air, a combustor for burning the air emitted from the compressor and fuel, and a turbine driven by the burned gas emitted from the combustor, wherein the gas turbine device includes cooling passages formed in the combustor and the turbine, along which the supercritical fluid as a cooling fluid flows to allow the combustor and the turbine to be cooled.

First claim

What is claimed is:

1. A gas turbine device using a supercritical fluid as a cooling fluid, the gas turbine device comprising:
a compressor ( 100 ) for compressing air;
a combustor ( 200 ) for burning the air emitted from the compressor ( 100 ) and fuel;
a turbine ( 300 ) driven by a burn gas, which is obtained by burning the air and the fuel and emitted from the combustor ( 200 ); and
cooling passages ( 400 ) formed in the combustor ( 200 ) and the turbine ( 300 ), along which the supercritical fluid as a cooling fluid flows- to allow the combustor ( 200 ) and the turbine ( 300 ) to be cooled,
wherein the supercritical fluid is carbon dioxide.

2. The gas turbine device according to claim 1 , further comprising a carbon dioxide collector for collecting carbon dioxide from a flue gas emitted from the turbine ( 300 ) driven by the burned gas emitted from the combustor ( 200 ), wherein the collected carbon dioxide is used as the cooling fluid.

3. A gas turbine device using a supercritical fluid as a cooling fluid, the gas turbine device comprising:
a main power generation gas turbine device ( 10 ) having a compressor ( 100 ) for compressing air, a combustor ( 200 ) for burning the air emitted from the compressor ( 100 ) and fuel, a turbine ( 300 ) driven by a burned gas which is obtained by burning the air and the fuel and emitted from the combustor ( 200 ), and cooling passages ( 400 ) formed in the combustor ( 200 ) and the turbine ( 300 ), along which the supercritical fluid as a cooling fluid flows to allow the combustor ( 200 ) and the turbine ( 300 ) to be cooled; and
an auxiliary power generation gas turbine device ( 20 ) having a supercritical fluid compressor ( 500 ) and a supercritical fluid turbine ( 600 ), an outlet of the supercritical fluid compressor ( 500 ) being connected to an inlet of the cooling passage ( 400 ) formed in the combustor ( 200 ) or the turbine ( 300 ) of the main power generation gas turbine device ( 10 ), and an inlet of the supercritical fluid turbine ( 600 ) being connected to an outlet of the cooling passage ( 400 ) formed in the combustor ( 200 ) or the turbine ( 300 ) of the main power generation gas turbine device ( 10 ), wherein the supercritical fluid is compressed in the supercritical fluid compressor ( 500 ), heated through the cooling passage ( 400 ), and supplied to the supercritical fluid turbine ( 600 ),
wherein the supercritical fluid is carbon dioxide.

4. The gas turbine device according to claim 3 , further comprising a carbon dioxide collector for collecting carbon dioxide from a flue gas emitted from the turbine ( 300 ) driven by the burned gas emitted from the combustor ( 200 ) in the main power generation gas turbine device ( 10 ).

5. The gas turbine device according to claim 4 , wherein the carbon dioxide collected in the carbon dioxide collector is cooled and supplied to the supercritical fluid compressor ( 500 ) in the auxiliary power generation gas turbine device ( 20 ).

6. The gas turbine device according to claim 3 , wherein the auxiliary power generation gas turbine device ( 20 ) is connected to the cooling passage ( 400 ) formed in the combustor ( 200 ) and to the cooling passage ( 400 ) formed in the turbine ( 300 ), respectively.

7. The gas turbine device according to claim 3 , wherein one auxiliary power generation gas turbine device ( 20 ) is connected to a coupling inlet portion where inlets of the cooling passages ( 400 ) of the combustor ( 200 ) and the turbine ( 300 ) are connected to form one inlet and to a coupling outlet portion where outlets of the cooling passages ( 400 ) of the combustor ( 200 ) and the turbine ( 300 ) are connected to form one outlet.

Assignees

• Industry-Academic Cooperation Foundation Yonsei Univ

Inventors

• Cho Hyung Hee
• Kim Kyung Min
• Moon Ho Kyu
• Kim Beom Seok
• Park Jun Su
• Kim Seon Ho

Classifications

• F02C7/12 Primary

  Cooling of plants (of component parts, see the relevant subclasses, e.g. F01D; cooling of engines in general F01P) · CPC title

• F23M5/08

  Cooling thereof; Tube walls · CPC title

• F02C7/16

  characterised by cooling medium · CPC title

• F02C6/18

  using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants (using waste heat as source of energy for refrigeration plants F25B27/02; using the waste heat of a gasturbine for steam generation or in a steam cycle see F01K23/10) · CPC title

• F02C7/18 Primary

  the medium being gaseous, e.g. air {(F02C7/125 takes precedence)} · CPC title