Title:
SPRAY DEVICE FOR STEAM TURBINE AND ITS OPERATING METHOD
Document Type and Number:
Japanese Patent JPH02227503
Kind Code:
A
Abstract:
PURPOSE:To sufficiently control the water quality of condensate and feed water by juxtaposing a second bypass device provided with a demineralizer and second adjusting valves to a first bypass device branched from a condensate-feed water pipeline system and connected to the spray unit of a steam turbine. CONSTITUTION:A condenser 4 has a turbine low pressure part 3 in its top, together with a spray device 16 in exhaust chambers 19 located on both sides. The spray device 16 is connected to a first bypass device 18 provided with a first adjusting valve 17, and condensate and feed water as the water source of the device are drawn off from the outlet side of a booster pump 7. In such constitution, a second bypass device 18a is juxtaposed to the first bypass device 18. Then, a demineralizer 21 provided with plural second adjusting valves 22, 23 and a calculation unit 25 for preparing respective valve opening/closing signals are provided to the second bypass device 18a. Further, the calculation unit 25 prepares valve opening/closing signals based on valve lift signals of a steam valve and salts-concentration signal of the condensate feed water.
Inventors:
AMAMIYA HIDE
HASHIMOTO MASAYUKI
SUZUKI YASUHIRO
HASHIMOTO MASAYUKI
SUZUKI YASUHIRO
Application Number:
JP4516689A
Publication Date:
September 10, 1990
Filing Date:
February 28, 1989
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F01K9/00; (IPC1-7): F01K9/00
Attorney, Agent or Firm:
Noriyuki Noriyuki (1 person outside)