MECHANICAL-DRAFT COOLING TOWER Russian patent published in 2009 - IPC F28C1/00 

FIELD: heating.

SUBSTANCE: invention relates to contact coolers, namely to mechanical-draft cooling tower design, and can be used in chemical and power industry enterprises to cool recycling water. A mechanical-draft cooling tower comprises a body with a diffuser in the upper part, air inlet ports and a basin in the lower part and a drop catcher as well as a water distribution system and a sprinkler inside. An electric drive of a fan blade wheel is mounted in the upper tower part; at least two parallel beams are fixed in the upper part with two cross beams being fixed between them so that to form a central square opening for the installation of the electric drive of the fan blade wheel above the drop catcher. The electric drive is made as a gear motor placed in the cylindrical casing with a metal square plate serving as a base and being welded to the cylindrical casing; the casing base is fitted with gusset plates welded to the cylindrical casing and the casing base; the corner base parts between the plates are fitted with holes for attaching the base to the beams forming the square opening. Relation of the height of the electric drive casing to its outer diametre amounts to 1.4-2.7. The upper part of the cylindrical casing is equipped by a support metal plate with a central opening coaxial to the axis of the cooling tower diffuser. A metal flat round flange where a gear motor is hanging is fixed on the support plate; the shaft of the electric drive gear motor of the fan blade wheel is passed through the central opening of the flange.

EFFECT: increasing the efficiency of the mechanical-draft cooling tower operation due to reducing aerodynamic resistance of the cooling tower flow section along with decreasing expenditures on the assembly and maintenance of the cooling tower blade fan.

3 dwg