STEAM TURBINE, ITS COOLING METHOD AND STEAM TURBINE PLANT

Title:

STEAM TURBINE, ITS COOLING METHOD AND STEAM TURBINE PLANT

Document Type and Number:

Japanese Patent JP2004346932

Kind Code:

A

Abstract:

To provide a steam turbine plant, and a cooling method of the steam turbine plant, whereby plant heat efficiency is further improved by raising the temperature of reheating steam to a superhigh temperature, maintaining a guarantee on high strength in a turbine constituting part by coping with the realization of the high temperature of the reheating steam.

This steam turbine plant is formed by combining a steam turbine 1, a condensation system 13, and a water supply system 14 with a steam generator 9; and has an overheat reducer 6 for supplying the reheating steam from the steam generator 9 to an intermediate pressure turbine 2 of a steam turbine part 1 via a nozzle box by arranging the nozzle box, and heating supply water by sensible heat of bleed steam from the intermediate pressure turbine 2 in a water supply system 14.

Inventors:

YAMASHITA KATSUYA
NAGANE KOHEI
SHINOZAKI YUKIO

Application Number:

JP2004133582A

Publication Date:

December 09, 2004

Filing Date:

April 28, 2004

Export Citation:

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Assignee:

TOSHIBA CORP

International Classes:

F01D9/02; F01D9/06; F01D25/12; F01D25/24; F01D25/26; (IPC1-7): F01D25/12; F01D9/02; F01D9/06; F01D25/24; F01D25/26

Attorney, Agent or Firm:

Hideaki Togawa

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