COOLING TOWER Russian patent published in 2009 - IPC F28C1/00 F23D11/10 

FIELD: heating.

SUBSTANCE: invention deals with design of contact coolers (such as cooler towers) and may be of relevance in view of providing for the recooling needs of thermal power stations. The cooling tower consists of a stack with air inlet windows arranged on the side surface fitted with coolant air injection nozzles. In the windows there are louvers arranged slanting in the tower inside direction. The louvers form tiered ducts with the nozzles positioned before the ducts entrances. The nozzles are of the acoustic type; each of them consists of a body containing an acoustic oscillation generator composed of a nosepiece, a resonant element and tubes for supply of air and liquid. The body is represented by a vertically positioned cylindrical barrel. In the barrel upper part the air supply tube is mounted with the liquid supply tube positioned perpendicular to its axis. The body contains a bushing with a top and a bottom flanges that is rigidly fixed coaxial with the body proper. The bottom flange is rigidly fixed in the body groove. The bushing contains a ring-shaped resonant element aligned coaxial with the bushing containing it. The resonant element is represented by a taper-shaped cup pressed onto the resonant element rod (diameter=d), its tail end locking disks represented by elastic blades interact with the bushing inner surface. The bottom flange has at least one nosepiece positioned at the angle to the resonant element axis, the angle magnitude varying within the range of 20°÷40°. The nosepiece axis extension lies on a circumference arranged in the central part of the resonant element tapered surface. The ratio of h₁ (height of the ring-shaped resonant element) to h (distance between the tapered surface upper base and the body bottom butt surface) belongs to the optimum interval of values: h₁/h=1÷3; the ratio of d₁ (resonant element cup inner diameter) to d₂ (resonant element outer surface diameter) belongs to the optimum interval of values: d₁/d₂=0.7÷0.9; the ratio of d₁ (resonant element cup inner diameter) to d (resonant element rod diameter) belongs to the optimum interval of values: d₁/d=1÷3; the ratio of d₁ (resonant element cup inner diameter) to h₁ (height of the ring-shaped resonant element) belongs to the optimum interval of values: d₁/h₁=1÷2.

EFFECT: cooling tower performance improvement.

2 cl, 2 dwg