Title:
FLASH STEAM GENERATOR
Document Type and Number:
Japanese Patent JP2018155418
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a flash steam generator capable of preventing a suction side of a steam booster from being kept in a negative pressure state.SOLUTION: A flash steam generator 30 includes a flash tank 31 for re-evaporating recovered steam drain D1 and separating it into flash steam S3 and hot water W3, a steam feed line L32 for feeding the flash steam S3 from the flash tank 31, circulation passage switching means 32 composed of one or more control valves including at least a steam feed valve V32 disposed on the steam feed line L32, control means 37 controlling the circulation passage switching means 32, and a steam booster 15 disposed at a downstream side of the steam feed valve V32 and boosting the flash steam S3 to supply the same as low pressure steam S2. The control means 37 transmits a close command signal to the steam feed valve V32 after a prescribed time from transmission of a stop command signal to the steam booster 15, when the steam booster 15 is stopped in accompany with close of the steam feed valve V32.SELECTED DRAWING: Figure 1
Inventors:
KOIZUMI NAOYUKI
OTANI KAZUYUKI
OTANI KAZUYUKI
Application Number:
JP2017050426A
Publication Date:
October 04, 2018
Filing Date:
March 15, 2017
Export Citation:
Assignee:
MIURA KOGYO KK
International Classes:
F22B27/00; F22B3/04; F22D11/00
Attorney, Agent or Firm:
Samejima Mutsumi
Mitsuo Tanaka
Yasushi Ohata
Yukino Okunishi
Mitsuo Tanaka
Yasushi Ohata
Yukino Okunishi