Patent ID: 9541289
Date: 2017-01-10
CPC Classifications: C10J,F01K,F02C,F22B,F23J,Y02E,Y02P

Claim:
1. A pressure vessel comprising: a gasification furnace that partially oxidizes and gasifies a pulverized coal and discharges gasified gas as a produced gas; and a gas cooler including a flue gas duct that communicates with the gasification furnace and through which the produced gas passes, wherein the gas cooler includes a heat exchanger provided in the flue gas duct, the heat exchanger including a group of tubes arrayed along a gas-flow direction of the produced gas passing through the flue gas duct, and a ratio (SL/d) of a distance (SL) in the gas-flow direction of the produced gas between the tubes constituting the group of tubes to an outer diameter (d) of the tube is larger than 1 and 1.4 or smaller, such that dust particles of the produced gas are deposited only in a concave portion between the tubes.