KOCHETOV FAN COOLING TOWER Russian patent published in 2012 - IPC F28C1/00 

FIELD: power industry.

SUBSTANCE: fan cooling tower includes housing, spraying device, liquid collection tank and fan; housing consists of two parts - upper part including sprinkler and droplet separator between which there located is header of spraying device with flame atomisers, and lower part in which there located is water collecting tank for cooled water with a fan installed on it. Housing is made of stainless steel sheets, and there is diffuser in water collecting tank, which represents a part of housing and is connected to the fan provided with a plastic impeller and multi-speed electric motor allowing to change the efficiency of cooling tower during the operation depending on weather conditions owing to changing the air flow rate, and sprinkler includes tubular elements arranged in layers parallel to each other and made from thermoplastic material with meshed wall; at that, tubular elements are welded to each other along the edges, have triangular cross section, and a strip from thermoplastic material, which is welded to tubular elements at their connection points to the strip, is laid between each layer of tubular elements across tubular elements along each of their edges. During welding end sections of tubular elements and strips laid between them are fused, and solid end walls of the unit are formed during fusion process; at that, cavities of each of tubular elements and inter-tube space is filled with hollow polymer balls; at that, ball diameter is by 5÷10% more than maximum size of cell of meshed wall of tubular elements. Cooling towers are connected so that hydraulic water preparation and consumption circuits operate separately. In lower part of housing of cooling towers there located are at least two water collecting tanks which are connected to each other by means of a compensation pipe, thus providing hydraulic independence of circuits of working water preparation and its consumption. One tank is connected to the pump which supplies the water cooled in the cooling tower to the consumer, which is again supplied through valve via pipeline to the second tank from which the heated water is supplied by the pump through filter and valve via pipeline to header with atomisers arranged in upper part of cooling tower housing, and in the section between filter and valve there installed is monitoring system of hydraulic resistance of filter, which consists of pressure gauge and valve.

EFFECT: improving operating efficiency of cooling tower.

4 dwg