Patent RU-2266488-C1 (RU)
Inventor: LIFANOV V A
IPC: F28D1/02
Filed: 2004-03-26
Granted: 2005-12-20
Abstract: FIELD: the invention is designed for application in the field of heat exchange-and-power engineering namely in heat exchanging apparatus of the type of a gas air cooling apparatus. 
     SUBSTANCE: the heat exchanging apparatus of the type of a gas air cooling apparatus has an arrangement for drawing off and feeding into the zone of the bundle of heat exchanging tubes  of exterior heat exchanging environment  fulfilled in the shape of a vessel open from the side of the gables. The vessel is formed in the zone of location of the heat exchanging tubes  with the help of lateral and gables walls of the heat exchanging section of the apparatus and a multi-row bundle of heat exchanging tubes. At the input it is fulfilled with multi-mouth section formed by the mouths of the casings of ventilators for feeding the cooling environment . Each of them has a  baffle with a round transversal section in the zone of locating the ventilator and a multi angular predominantly rectangular transversal section in the zone adjoining to the heat exchanging section c with at least two opposite edges adjoining to the corresponding contact plots of the lateral walls of the heat exchanging section. AT that the lateral walls from the interior side of the vessel are provided with longitudinal cowl-displacers  in the shape of the elements forming in the vessel extensive projections at least on the most part of the length of the interior wall of the vessel and the gables of the vessel are formed with the help of the tube plates of the gas input-output chambers of the heat exchanging section  at least at the part of their height  making up 0,5-0,85 of the height of the lateral walls. The tube plates are installed as piers of different height in the final ends of the plots of the lateral walls of the vessel. AT that the correlation of the total square of the multi mouth section at the input of the vessel formed with the help of mouths of the casings of the ventilators in the vessel to the square of the section of the vessel at its output  makes according to overall dimensions of the vessel ∑F low :F UPPER =0,42-0,9 and in the flatness of aerodynamic shading formed by  the upper row of the bundle of the heat exchanging tubes  the mentioned correlation makes 0,51±11,5% where ∑ low - total square of the multi mouth input section of the vessel, m 2 ; F  upper  - the dimension square of the working section of the vessel in its upper part without taking into consideration the aerodynamics shading developed by the heat exchanging tubes of the bundle,m 2 . 
     EFFECT: allows to increase efficiency of a gas air cooling apparatus due to constructive decisions of the walls of a vessel securing better aerodynamics of passing of the cooling environment including wall zones of the vessel and also in high adaptability of the system of the vessel to seasonal changes in exterior environment and mass of the cooling gas passing through the heat exchanging tubes of the bundle of the vessel at the expense of optimization of correlation of parameters of passing sections of the vessel and of the whole apparatus. 
     4 cl, 3 dwg