Patent ID: 9453684
Filing Date: 2016-09-27
CPC Classification: B01J,C01B,C10G,F28D,Y02P

Claim Text:
1. A heat exchanger for the cooling of hot gases by means of a cooling fluid, said exchanger comprising: at least one vertically oriented tank containing a cooling fluid bath and having a collection space of the vapour phase generated above said cooling fluid bath, at least one vertical tubular element inserted inside said tank, and submerged in the bath open at the ends and coaxial to said tank, at least one spiral duct which turns around the axis of the tank, inserted in said coaxial tubular element, and at least one outlet for the vapour phase generated on the head of said tank, wherein at least one transfer line is inserted in the lower part of the vertical tank for feeding the hot gases to said tank, said transfer line being open at the two ends, of which one is connected with the vertical tank and the other is free and outside said tank, said transfer line being tubular and protruding laterally outside said exchanger, said transfer line containing at least one central internal duct having an outer jacket in which a cooling fluid circulates, said central internal duct receives the hot gases and is in fluid connection with the spiral duct and wherein the central internal duct develops vertically along the tubular element inserted in the vertical tank and wherein the jacket of the central internal duct also comprises a septum for allowing the internal circulation of the cooling fluid and wherein the septum contained in the jacket develops for the whole length of the central internal duct as far as the upper end of said central internal duct.