Title:
STEAM TURBINE PLANT AND COOLING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2019/220786
Kind Code:
A1
Abstract:
This steam turbine plant is provided with: a boiler (20); a fuel valve (66); a low-temperature steam generation source (50); a steam turbine (30); a main steam line (77) that guides steam generated in the boiler (20) to the steam turbine (30); a main steam adjustment valve (79) that is provided to the main steam line (77); a low-temperature steam line (82) that guides low-temperature steam from the low-temperature generation source (50) to a position closer to the steam turbine-side than to the main steam adjustment valve (79) in the main steam line (77); a low-temperature steam valve (83) provided to the low-temperature steam line (82); and a control device (100). During a stopping process of the steam turbine plant, the control device (100) sends a command to close the fuel valve (66), and then sends a command to open the low-temperature steam valve (83).
Inventors:
FUJIMURA DAIKI (JP)
SEKINE SUSUMU (JP)
SEKINE SUSUMU (JP)
Application Number:
PCT/JP2019/013339
Publication Date:
November 21, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01D25/12; F01D17/10; F01K13/02; F01K23/10
Foreign References:
| JP2006009787A | 2006-01-12 | |||
| JPS53118605A | 1978-10-17 | |||
| JPH04140403A | 1992-05-14 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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