Abstract: The present invention relates to a heat exchange system comprising:—a single apparatus (N) having an area immersed in a fluid bath (N2) and a free space (N1) at the head in which a vapour phase is accumulated,—at least one interspace (P) open at both ends, situated inside said apparatus and completely immersed in the fluid bath,—one or more heat exchange surface (s) (6, 7, 8, 9, 10, 11), said system characterized in that it contains all the heat exchange surfaces in a single apparatus and said surfaces are completely immersed in the fluid bath and are fluidly connected to the hot and cold sources, external to said system, through flows of matter. At least one of the heat exchange surfaces (6, 7, 8) is situated inside the interspace and at least another surface (9, 10, 11) is situated in the space between said interspace and the walls of the apparatus.

Abstract: A heat exchanger for the cooling of hot gases by means of a cooling fluid includes at least one vertically oriented tank containing a cooling fluid bath and having a collection space of the vapor 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 the tank, at least one spiral duct which rotates around the axis of the tank, inserted in the coaxial tubular element, at least one outlet for the vapor phase generated on the head of tank, wherein at least one transfer line is inserted in the lower part of the vertical tank for feeding the hot gases to the tank, the transfer line being open at the two ends, of which one is connected with the vertical tank and the other is free and outside the tank, the transfer line being tubular and protruding laterally outside the exchanger, the transfer line containing at least one central internal duct having an outer jacket in which a cooling fluid circulates,

Abstract: The present invention relates to a heat exchange system comprising:—a single apparatus (N) having an area immersed in a fluid bath (N2) and a free space (N1) at the head in which a vapour phase is accumulated,—at least one interspace (P) open at both ends, situated inside said apparatus and completely immersed in the fluid bath,—one or more heat exchange surface (s) (6, 7, 8, 9, 10, 11), said system characterized in that it contains all the heat exchange surfaces in a single apparatus and said surfaces are completely immersed in the fluid bath and are fluidly connected to the hot and cold sources, external to said system, through flows of matter. At least one of the heat exchange surfaces (6, 7, 8) is situated inside the interspace and at least another surface (9, 10, 11) is situated in the space between said interspace and the walls of the apparatus.

Abstract: The present invention relates to 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, open at the ends and coaxial to said tank, at least one spiral duct which rotates around the axis of the tank, inserted in said coaxial tubular element, at least one outlet for the vapour phase generated on the head of said tank, said exchanger characterized in that 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 inte