METHOD OF MANUFACTURE AND INSTALLATION OF FOUR-WAY AIR HEATER WITH V-SHAPED TUBES Russian patent published in 2001 - IPC

FIELD: heat exchange engineering; applicable in process of utilization of heat of effluent gases from units with the aim of heating of air coming from compressor to combustion chamber. SUBSTANCE: two-pack bank of V-shaped tubes offered in claimed method is made from separate two-pack heat-exchange modules formed from V-shaped tubes with bypassing chambers and with covering walls whose mounting is effected on supporting frame by successive installation of it of row of modules on one another, connection of module covering walls on side of intertube space by connections, each of which is of bent angle shape, and also connection of module headers of air intake and withdrawal, and module bypassing chambers with the help of rings which are secured with their internal surfaces. EFFECT: simplified manufacture and installation of air heater at operations site in any difficult-to-reach region with no application of powerful materials-handling machines. 4 dwg