FIELD: power engineering, in particular, devices for utilization of heat of gases exhausted by apparatuses, primarily for heating air by combustion products, coming from compressor of gas turbine plant of gas flow apparatus at compressor stations of main gas pipeline.
SUBSTANCE: bank of heat exchange pipes of regenerative air heater is made four-drive, multi-row and is formed by rows of heat exchange pipes, positioned with vertical and horizontal gaps filled with distancing elements, while for external branches of bank distancing elements, providing for distancing of heat exchange pipes along horizontal and vertical lines and their spatial holding, are formed by separator with openings for passing of pipes, made with possible holding in body of regenerative air heater, and for inner branches of pipes bank, distancing elements are made in form of folded plates, having alternating bearing portions positioned on two sides of plates, one on each of upper and lower shelves of fold for bearing contact of appropriate lower and upper projections of folded plates of similar heights and two inclined portions connecting projections, forming bearing elements for abutment of bank pipes, while together folded distancing elements form additional composite, spatial at least in cross-section, bearing grid, for at least appropriate branch of bank with longitudinal and transverse steps of elements forming it, appropriate for longitudinal and transverse steps of heat exchange pipes of bank.
EFFECT: higher heat exchange efficiency of heat exchange pipe bank of regenerative air heater, decreased dimensions of device, lower metal cost of construction, simplified assemblage of construction.
1 cl, 5 dwg
