APPARATUS FOR COOLING HOT GAS

摘要

An apparatus for cooling hot gas comprising a vessel (2) provided with an inlet (1A) for hot gas and an oulet (5) for cooled gas, at least a heat exchange tube (4) defining a gas passage through a cooling medium compartment arranged within the said vessel and said tube(s) (4) being mounted at least at or near its (their) upstream end(s) in a tube plate (2A) which closes the said cooling medium compartment of said vessel. The tube plate (2A) is provided at its upstream end with a means (7) for cooling the tube inlet section. The flow of cooling medium along the outer wall(s) of the gas passage(s) is in countercurrent to the gas flow(s) through the gas passage(s)(3).