FIELD: heat and power engineering, possibly manufacture of apparatuses for recovering heat of exhaust gases of aggregates, namely for heating air by means of exhaust combustion products from compressor of gas turbine aggregate.
SUBSTANCE: method comprises steps of placing in stock carcass of heat exchange unit and of shell of manifolds for supplying and discharging heated air to which tube plates are welded-in; mounting between shells panel of member for displacing inter-tube fluid having flat portion arranged in plane of outer surfaces of tube plates; joining displacing member with shells and joining shells with carcass; then putting in heat exchange unit four-way heat exchanging tubes row-by-row from downwards to upwards; passing each tube of each outer branch through openings of spacing grids fixed on carcass of heat exchange unit; placing inner branches of heat exchanging tubes onto comb secured to bottom; separating inner branches of next rows by means of spacing strips and arranging inlet and outlet ends of tubes respectively in tube plates of shells of manifolds for supplying and discharging heated air; then securing ends of heat exchanging tubes in tube plates and fastening end wall of heat exchange unit.
EFFECT: enhanced accuracy of assembling, lowered labor consumption of working operations.
15 cl, 14 dwg
