Title:
STEAM TURBINE PLANT, ASSEMBLY METHOD OF THE SAME AND STEAM SUPPLY PIPING
Document Type and Number:
Japanese Patent JP2018188997
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a steam turbine plant capable of efficiently cooling a plurality of turbines with a simple cooling system and improving a plant efficiency.SOLUTION: A steam turbine plant includes a high pressure turbine 1 which is driven by steam introduced from a main steam inlet part 2 and a middle pressure turbine 6 which is driven by utilizing the steam exhausted from the high pressure turbine 1. The high pressure turbine 1 has an inlet cooling structure that cools a main steam inlet part 2 by circulating cooling steam. A steam supply piping 30 for supplying the cooling steam after cooling the main steam inlet part 2 to the middle pressure turbine 6 with an inlet cooling structure is provided between the high pressure turbine 1 and the middle pressure turbine 6. The middle pressure turbine 6 has a rotor cooling structure that cools a rotor by circulating the cooling steam supplied from the steam supply piping 30.SELECTED DRAWING: Figure 1
Inventors:
YAMAMOTO KOSUKE
KASE KENICHI
OSHIMA TORU
KASE KENICHI
OSHIMA TORU
Application Number:
JP2017090127A
Publication Date:
November 29, 2018
Filing Date:
April 28, 2017
Export Citation:
Assignee:
TOSHIBA CORP
TOSHIBA ENERGY SYSTEM & SOLUTION CORP
TOSHIBA ENERGY SYSTEM & SOLUTION CORP
International Classes:
F01D25/12; F01D5/08; F01D25/00
Domestic Patent References:
| JP2013531181A | 2013-08-01 | |||
| JP2010255542A | 2010-11-11 | |||
| JP2006104951A | 2006-04-20 | |||
| JPS60159309A | 1985-08-20 | |||
| JPS5529004A | 1980-03-01 | |||
| JP2018527505A | 2018-09-20 |
Foreign References:
| WO2017029008A1 | 2017-02-23 |
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Kazuya Yamashita
Yoshiki Kanagawa
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Kazuya Yamashita
Yoshiki Kanagawa