GASIFICATION COMBINED CYCLE - MITSUBISHI HEAVY INDUSTRIES,LTD.

Title:

GASIFICATION COMBINED CYCLE

Document Type and Number:

Japanese Patent JP3794724

Kind Code:

B2

Abstract:

PURPOSE: To prevent steaming from being induced and pressure variation and thermal variation between a pipe line piercing a pressurized vessel and the pressurized vessel from occurring by making it possible to perform constant pressure operation of a cooling apparatus, which cools gas produced by gasifying solid and liquid fuel, at either of steady-operation conditions and partial operation conditions.
CONSTITUTION: Solid or liquid fuel 14 fed to a gasifying furnace 1 is cooled to a specified temperature by a gas cooling apparatus 2 before unburnt carbonaceous constituents are removed by a char recovering apparatus 3 and dusts and sulfurous constituents are removed by a gas refining apparatus 4, and the fuel is made to burn in a combustor of a gas turbine 5 to drive a generator. A pressure control valve 11 is installed at a main steam outlet of the gas cooling apparatus 2 and pressure within a steam system of the gas cooling apparatus 2 is controlled at a constant pressure by effecting a previous pressure control by use of the control valve. Therefore, even if operational conditions of a waste heat recovering boiler 6 are changed, temperature distribution within each part of the gas cooling apparatus 2 is kept constant in a partial load operation and the like.

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Inventors:

Hiromichi Toda
Kusakabe Japanese
Osamu Shinada
Yoshiomi Saiomi

Application Number:

JP28039494A

Publication Date:

July 12, 2006

Filing Date:

November 15, 1994

Export Citation:

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