DIRECT-CONTACT HEAT EXCHANGER Russian patent published in 1995 - IPC

FIELD: heat exchange. SUBSTANCE: direct-contact heat exchanger has a casing made in the form of three vertical tubular columns 5, which at the top and bottom are connected by manifolds 2, 1. Warmed liquid is supplied to upper manifold 2 through sprinkler 4, sprayed in manifold 2 and runs off in the form of film into three columns 5. Gaseous flow is fed to columns 5 through lower manifold 1, for its uniform distribution throttles 6 are installed in first and third columns 5 in the direction of motion of gaseous flow, the flow areas of the throttles make up 0.33 and 0.4 of the flow area of the first column. Intensive heat exchange and mass transfer between liquid and gaseous flows occur in three vertical columns 5; as a result, cooled liquid runs off downwards and through moisture collector 7 and manifold 8 it is fed to using equipment, and exhaust gaseous flow through exhaust pipe 3 is discharged outside. Several direct-contact heat exchangers bound by transverse braces with a space between them, which is filled with concrete mix, can form a monolithic concrete block that can be used in seismic-dangerous regions. EFFECT: enhanced reliability. 2 dwg