FIELD: the invention refers to energy engineering namely to air cooling apparatus applied particularly for cooling of natural gas.
SUBSTANCE: the gas air cooling apparatus has ventilators for feeding exterior intertubular cooling environment predominantly air , at least two heat exchanging sections with multi-row single-pass bundle of finned tubes in which the tube rows are separated from each other with distancing elements fulfilled in the shape of folded plates interchanging along the length of the plate prominent and concave plots forming supporting sites for the tubes adjacent throughout the height of the bundle of rows. The configuration of the folded distancing element are accepted of the kind that transversal lines of the upper concave plots are located relatively to the flatness passing through corresponding transversal lines of the lower concave plots of the element in high-altitude diapason of values: from exceeding on a value γ1 over the flatness on the part of the thickness Δ of the distancing element making γ1=Δ-A, where A- amplitude of the fold, before location of the lower than mentioned flatness on the value γ2≤0,11d, and the pitch n of the folds along the length of the distancing element makes up n=(1,01-1,75)d where d - a diameter of finning along the exterior contour of the fins of the tubes.
EFFECT: increases stability of the bundle of the tubes of the heat exchanging section of the apparatus, thermal efficiency of the gas air cooling apparatus and also increases rigidity characteristics of the heat exchanging sections of the apparatus working under pressure.
17 cl, 13 dwg
