Title:
EXHAUST GAS RECIRCULATION TYPE COMBINED PLANT
Document Type and Number:
Japanese Patent JP3794168
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To expand a scope of partial load operation which can be operated with high efficiency by spraying liquid droplets from a spray device to evaporate them in a compressor so as to suppress a rise of a temperature at an outlet of the compressor and increase a recirculation amount when a part of exhaust gas from a gas turbine is recirculated into an inlet of the compressor.
SOLUTION: This plant is provided with a recirculation means 9 which recirculates a part of exhaust gas from a gas turbine 3 into an inlet of a compressor 1 and a recirculation amount control means 10 which controls a recirculation amount. Furthermore, a spray nozzle 11 is arranged in a suction duct of the compressor 1 to spray minute liquid droplets. Since spray of liquid droplets which vaporize in the compressor can be introduced to cool the gas inside the compressor, it is possible to raise a temperature of suction air in the compressor. That is, an exhaust air recirculation amount can be increased, and a scope of highly efficient partial load operation can be expanded. Moreover, the thermal efficiency of combined cycle total can be improved.
Inventors:
Kataoka Maki
Motoaki Utamura
Takaaki Kuwahara
Motoaki Utamura
Takaaki Kuwahara
Application Number:
JP18189798A
Publication Date:
July 05, 2006
Filing Date:
June 29, 1998
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F01K23/10; F02C3/34; F02C3/30; F02C6/18; F02C7/057; F02C7/143; (IPC1-7): F02C3/34; F01K23/10; F02C6/18; F02C7/057; F02C7/143; //F02C3/30
Domestic Patent References:
| JP7034900A | ||||
| JP1147199A | ||||
| JP1149599U |
Attorney, Agent or Firm:
Yasuo Sakuta