Title:
給水ポンプサイズを縮小するために燃料ガス加熱器の排水を使用する蒸気温度調節用装置
Document Type and Number:
Japanese Patent JP5604074
Kind Code:
B2
Abstract:
Attemperation systems and methods for cooling steam bypassed from a steam turbine (22) during tripping of the steam turbine (22) are provided in the disclosed embodiments. The systems may be configured to deliver water discharged from a fuel gas heater (82) to a bypass attemperator (72), where the water discharged from the fuel gas heater (82) may be used to cool the bypass steam. Before being used by the fuel gas heater (82), the water used to heat the fuel gas may be heated by an economizer (44). The water may be delivered to the economizer (44) by an intennediate pressure stage (74) of a boiler feedwater pump (76). In the disclosed embodiments, the intermediate pressure stage (74) of the boiler feedwater pump (76) may also be used to supply water to a re-heater attemperator (62), which may be used to further cool the steam after it has been delivered from the bypass attemperator (72) to a re-heater (58). In addition, the intermediate pressure stage (74) of the boiler feedwater pump (76) may deliver water directly to the bypass attemperator (72) as a supplemental water source.
More Like This:
Inventors:
コウシック ナラヤナスワミイ
プラケッシュ Narayan
プラケッシュ Narayan
Application Number:
JP2009230197A
Publication Date:
October 08, 2014
Filing Date:
October 02, 2009
Export Citation:
Assignee:
General Electric Co.
International Classes:
F01K9/00; F01K13/00; F22G5/12
Attorney, Agent or Firm:
Satoshi Arakawa
Hiroshi Ogura
Toshihisa Kurokawa
Hiroshi Ogura
Toshihisa Kurokawa