| 摘要 |
FIELD: heat and power engineering, possibly manufacture of modules to apparatuses for recovery heat of waste gases of aggregates, for example for heating air by means of exhaust combustion products of compressor of gas turbine plant of gas pumping aggregate in compressor stations of main gas conduits. ^ SUBSTANCE: method comprises steps of piece-by-piece making blanks of shells of housings of manifolds for supplying and removing hated air, tubes, tube walls, module carcass members; bending tubes for producing flatly bent tubes having successively changed parameters of their branches and connection elbows; molding bent tubes; assembling manifolds at welding into them tube walls; mounting module carcass and manifolds; inserting tube bundle into module and again molding it together with manifolds inside module. Blanks of shells of manifold housings are prepared by cutting out metallic sheet for their further bending and welding. In prepared, mainly cylindrical blank rectangular port is formed for placing tube wall. Height of said port consists 0.72 - 0.95 of manifold height in module; its angular width consists of 0.07 - 0.25 of cross-section perimeter of shell of manifold. In tube wall openings are formed for creating tube field with surface area consisting 0.52 - 0.81 of common surface area of its frontal surface. At inserting tube bundles tubes are arranged by rows along height; distance between lengthwise axes of tubes in adjacent rows consists 0.6 - 1.5 of tube diameter. In rows adjacent by height tubes are shifted by 0.4 - 0.6 of pitch between lengthwise axes of rectilinear branches of tubes in row. Pitch consists of 1.5 - 2.3 of tube diameter. ^ EFFECT: enhanced technological effectiveness, lowered metal consumption, increased rigidity of product produced according to such method. ^ 11 cl, 8 dwg |
