PURPOSE: The titled gasification furnace where the gasification furnace composed of air-tight walls which are cooled with water is set in a pressure vessel and the gap between the gasification furnace and the vessel is used as a path for the formed gas, thus being able to be made in low costs easily and having high safety, reliability and strength.
CONSTITUTION: At first, the gasification furnace 7 composed of water-cooling walls such as air-tight fin weld panels is set inside the pressure vessel 5 and coal is gasified in the combuster 1 in the furnace 7. Then, the gas formed is usually cooled with the gas cooler 4, introduced into the cyclone 8 fitted to the outlet of the furnace 7 where char is recovered, and the cleaned gas is passed through between the furnace 7 and the vessel 5 and sent from the bottom of the vessel 5 to the gas turbine.
EFFECT: Pipings become unnecessary around the furnace whereby the space can be reduced.
NANJIYOU FUSAYUKI
SAKAI SHINGI
KOBAYASHI KINJIROU
