FAN COOLING TOWER Russian patent published in 2017 - IPC F28C1/00 B05B1/34 F23D11/04 

FIELD: power industry.

SUBSTANCE: fan cooling tower includes a housing, a spraying device, a liquid collection tank and a fan, the casing consists of two parts - the upper part, including a sprinkler and a water-drop eliminator between which the manifold of the spraying device with solid-cone spray nozzles is located, and a lower part in which a water collection tank for collecting cooled water with a fan mounted on it is located. The housing is made from sheet stainless steel and the water collection tank has a diffuser which is a part of the housing and is connected with a fan, arranged with a plastic impeller and a multi-speed motor, allowing to change performance of the cooling tower during operation, depending on the weather conditions, by changes in air flow, and the sprinkler includes stacked in layers parallel tubular elements made of thermoplastic material with a lattice wall. The edges of the tubular elements are welded together, the tubular elements are made with a triangular cross-section, and between each layer of tubular elements across the tubular elements along each their end there is strip is laid from thermoplastic material, welded to tubular elements in areas of their contact with the strip. In process of welding end sections of tubular elements are fused, as well as end sections of strips laid between them, and solid end walls of the block are formed in process of fusing. Cavities of each tubular element and tube-to-tube space is filled with hollow polymer balls. Ball diameter÷ is 510% more than the maximum size of the cell of the lattice wall of the tubular elements and the spray nozzle comprises a hollow housing with a nozzle and the central core, the housing is designed with a duct for liquid supply and comprises a coaxial bushing rigidly connected with the housing with the nozzle fixed in the lower part of the bushing, the nozzle is designed as a cylindrical two-section bushing, which top cylindrical section is coupled by a threaded connection with a central cylindrical core having a through inner central hole and mounted with an annular space relative to the inner surface of the cylindrical bushing and the annular space is connected to at least three radial ducts made in the two-secttion busshing, they connect the duct with an annulus, formed by the inner surface of the bushing and the outer surface of the top cylindrical section. The annulus is connected with the duct of the housing for liquid supply, and at the bottom of the central cylindrical core a hollow conical swirler is fixed which conical shell is fixed by means of at least three spokes fixed with one end to the conical shell of the swirler at its upper part and with the other end - in an annular groove formed on the inner cylindrical surface of the central cylindrical core. On the outer surface of the hollow conical swirler a spiral slicing is made.

EFFECT: improved performance of the cooling tower.

4 dwg