Title:
排ガスから湿分を回収する火力発電設備及びその火力発電設備の回収水の処理方法
Document Type and Number:
Japanese Patent JP6420729
Kind Code:
B2
Abstract:
A thermal power plant for recovering water from exhaust gas (13) comprising: a gas turbine (1); a heat recovery steam generator (26) for generating steam by supplying exhaust combustion gas exhausted from the gas turbine (1) as heat source; a water recovery system (17) installed on the downstream side of the heat recovery steam generator (26) for condensing and recovering water in the exhaust combustion gas through direct gas/liquid contact between the exhaust combustion gas coming down from the heat recovery steam generator (26) and water; a recovered water system for supplying a part of the water recovered by the water recovery system (17), thereby allowing the water to be circulating as circulating water; a feed water system for supplying the heat recovery steam generator (26) with other part of the water recovered by the water recovery system (17) as feed water; a first pH adjusting system installed in the recovered water system to adjust the circulating water flowing through the recovered water system to a first pH value (hydrogen ion concentration index); a second pH adjusting system installed on the feed water system to adjust the feed water flowing through the feed water system to a second pH value (hydrogen ion concentration index); and a control system for controlling the volumes of the pH adjusters supplied from the first pH adjusting system and the second pH adjusting system.
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Inventors:
Hidefumi Araki
Kazuhiko Sato
Yasushi Iwai
Kazuhiko Sato
Yasushi Iwai
Application Number:
JP2015133194A
Publication Date:
November 07, 2018
Filing Date:
July 02, 2015
Export Citation:
Assignee:
Mitsubishi Hitachi Power Systems Co., Ltd.
International Classes:
F01D25/32; C02F1/66; F01D25/00; F02C3/30; F23R3/00
Domestic Patent References:
| JP2000054854A | ||||
| JP2012082702A | ||||
| JP2014054591A | ||||
| JP2007224820A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation