| 摘要 |
FIELD: heat engineering, in particular, in heat-exchange apparatuses of air cooling, in which outdoor air injected by the fan impeller is used as a cooling medium, and, for example, natural gas is used as the cooled gaseous medium. ^ SUBSTANCE: the air cooling heat-exchange apparatus has at least one vertical shell open from the bottom and from above made of woven material monolithic in cross section in the form of successively joined to one another in the direction from below upwards toroidal, cylindrical or linear surfaces, as well as a heat exchange surface and a fan impeller in each shell. The shell of the heat-exchange apparatus is made of fiberglass material impregnated by epoxy resin, the relation of various components of the shell surfaces and the diameter of the cylindrical surface is selected as follows: h=(1.47...1.49)d; g=(0.58...0.61)d; r=(0.18...0.20)d; a=(0.14...0.16)d; b=(0.55...0.57)d, where: d- the diameter of the cylindrical surface; h - the distance from the beginning of the linear surface to the mounting base; g - the distance from the beginning of the toroidal surface to the mounting base; r - the radius of the toroidal surface; a - the distance from the beginning of the cylindrical surface to the beginning of the linear surface; b - the distance from the end of the cylindrical surface to the beginning of the linear surface. Besides, the heat exchange surface positioned above the shell represents a rectangle in cross section characterized by the following relations: n=(1.1...1.12)d; m=(1.4...1.42)d, where: d - the diameter of the cylindrical surface; n - the smaller side of the rectangle; m - the larger side of the rectangle. The heat exchange surface is also made in the form of staggered horizontal rows of pipes, the distance between the centers of three adjacent pipes of the adjacent rows form an isosceles triangle with a base larger than the lateral sides. ^ EFFECT: enhanced efficiency of heat exchange and reduced consumption of power. ^ 5 cl, 5 dwg |
