COMBINED COOLING TOWER Russian patent published in 2018 - IPC F28C1/00 

FIELD: heat exchange.

SUBSTANCE: invention relates to heat power engineering, in particular to heat exchangers, and can be used in circulating water supply systems of thermal power plants and industrial enterprises where tower and/or fan cooling towers are used. Combined cooling tower includes a hull in the form of an exhaust tower with air inlet windows in the lower part, a water-catching device, catchment basin placed under the hull of the cooling tower, a water distribution system with spray nozzles, the outlets of which are directed upwards, an irrigation device, spray jets, recirculating water supply system has separate hydraulic circuits for the preparation and consumption of water, at that, in the bottom of the cooling towers bodies, at least two water collecting tanks are located, which are connected to each other by a compensation pipe, ensuring the hydraulic independence of the process water preparations and its consumption loops, at that, one tank is connected to a pump, which supplies water cooled in the cooling tower to a consumer, which again enters via a valve along a pipeline into the second tank, from which heated water is sent via a pump with a filter and a valve along a pipeline to a header with nozzles, placed in the cooling tower body upper part, and in the section between the filter and the valve, a hydraulic filter resistance monitoring system is installed, consisting of a manometer and a valve, each of the spray nozzles of the water distribution system comprises a housing with a swirl chamber and a nozzle, the housing is in the form of a supply fitting with a central hole and rigidly connected thereto and a coaxial cylindrical sleeve with an internal thread and an expansion chamber coaxial to the housing, at the same time, a nozzle is connected to the shell at its lower part through a thread. This nozzle is made in the form of an inverted cup, in the bottom of which there is a turbulent swirler of the liquid flow with at least two inclusions to the nozzle axis in the form of cylindrical holes located in the end surface of the nozzle, where also a central cylindrical throttle opening is made connected to the nozzle mixing chamber, in series connected to the diffuser outlet chamber, and in the lower part of the mixing chamber of the nozzle a hollow conical swirler is fixed, its conical shell is fixed by means of at least three spokes fixed at one end to the conical shell of the swirler in its upper part, and the other end – in the annular groove made on the inner surface of the mixing chamber, and on the outer surface of the hollow conical swirler a screw cutting is made.

EFFECT: increased efficiency of secondary energy resources by means of increasing the value of the active area of the cooling tower without increasing the aerodynamic drag.

1 cl, 2 dwg