AIR-COOLED CONDENSER Russian patent published in 2002 - IPC

FIELD: cooling vaporous media, steam in particular. SUBSTANCE: air-cooled condenser includes distributing chamber for distribution of vaporous medium to be condensed, condensate receiving chamber and finned tubes with fins found on air aide which are connected in parallel between distributing chamber and condensate receiving chamber; each tube has two parallel flat side walls and outer connectors connecting the side walls; finned tubes are also provided with longitudinal separating walls which are connected with side walls dividing internal space of finned tubes into longitudinal parallel passages; separating walls are provided with passages for flow of medium in between adjacent passages. At least some of finned tubes are separated by means of closing members found in passages and by means of passages to main condenser directing the medium from distributing chamber to condensate receiving chamber and recooler directing the medium from condensate receiving chamber to distributing chamber and then to air escaper pipe. EFFECT: enhanced reliability of avoidance of freezing of tubes; enhanced efficiency; simplified construction. 16 cl, 18 dwg