Title:
QUICK STARTING DEVICE FOR COMBINED-CYCLE POWER GENERATION PLANT
Document Type and Number:
Japanese Patent JPS5993907
Kind Code:
A
Abstract:
PURPOSE:To sharply shorten the starting time of a steam turbine, by installing an auxiliary evaporator, capable of obtaining high temperature gas through a heat exchange between high temperature gas and system feed water to be extracted out of a gas turbine, in a waste heat recovery heat exchanger. CONSTITUTION:An air compressor 1, a gas turbine 2, a generator 3 and a steam turbine 4 are all coupled together through the same driving shaft. The high temperature gas extracted out of the gas turbine 2 is fed to a waste heat recovery heat exchanger 11 via a control valve 29. An auxiliary evaporator 13 makes the high temperature gas and system feed water perform their heat exchange and secures high temperature steam. In time of hot starting, with the high temperature gas extracted out of the gas turbine 2, steam in a temperature corresponding to a casing metal temperature is produced and this steam is made to flow into the steam turbine 4. Doing like this, the plant starting time required can be sharply shortened.
Inventors:
TAKAHASHI MASAHIKO
YOSHIDA TETSUYA
YOSHIDA TETSUYA
Application Number:
JP20358782A
Publication Date:
May 30, 1984
Filing Date:
November 22, 1982
Export Citation:
Assignee:
TOSHIBA KK
TOSHIBA ENGINEERING CO
TOSHIBA ENGINEERING CO
International Classes:
F01D19/00; F01K23/10; (IPC1-7): F01D19/00
Attorney, Agent or Firm:
Noriyuki Noriyuki