COMBINED COOLING TOWER WITH RATIONAL SYSTEM OF WATER REUSE Russian patent published in 2014 - IPC F28C1/00 

FIELD: power industry.

SUBSTANCE: combined cooling tower includes shell, in the lower part of which there is a water-collection bath matching the shape of shell made of water-collecting shields, and above the bath there is a device for air intake made in the form of louvre grids arranged along the perimeter of the shell; in the upper part of the cooling tower shell there is a casing of an axial fan made of glass plastic and including a confusor positioned above a drop catcher coaxially to the cooling tower shell and rigidly connected to it, while a cylindrical part housing a fan impeller installed with a gap and a diffuser, in which at least three adjustable braces are attached for fan mounting with built-in electric motor are coaxially connected to the confusor; in the middle part of cooling tower shell, a water distribution system with headers of variable cross-section bearing nozzles spraying water above sprinkler fixated in the shell by stiffeners is positioned, and water reuse system features separate hydraulic circuits of water preparation and utilisation. In lower part of cooling tower shells there are at least two tanks for water collection connected to each other by compensation pipe, providing for hydraulic independence of circuits for working water preparation and utilisation, where one tank is connected to pump supplying water cooled in cooling tower to consumer, which returns via valve by pipeline into the second tank, from which heated water is supplied by pump through filter and valve by pipeline into collector with nozzles arranged in upper part of cooling tower shell; a system of hydraulic filter resistance control consisting of manometer and valve is located in section between filter and valve, while shell of each spraying nozzles is comprised by interlinked cylindrical bushings of larger and smaller diameter, and inside each bushing of smaller diameter an auger rigidly linked to its inner surface, e.g. by pressing-in, is placed, so that outer surface of an auger is a screw groove, and a hole with screw thread is made inside an auger.

EFFECT: improved efficiency of secondary power resources by increasing active area of cooling tower without increase of aerodynamic resistance.

4 cl, 2 dwg