Indirect evaporation type air cooler

Abstract

The invention provides an indirect evaporation type air cooler, and relates to the technical field of air cooler equipment, evaporation type air coolers and air coolers. The indirect evaporation typeair cooler comprises tube bundles, a framework, fans and an evaporation precooler, wherein the framework is a steel structural part for supporting the tube bundles, the fans and evaporation films; andthe fans are axial flow fan special for the air cooler and comprise air ducts, fan bodies, motors and transmission mechanisms, and the evaporation precooler is arranged around the axial flow fans. Byusing the evaporation precooler, air flows to finned tubes after being purified and humidified, and the humidified air takes away heat of surrounding air by evaporation of moisture in the flowing process, so that the air inlet temperature of the tube bundles is effectively reduced, the effective logarithm average temperature difference of heat transfer is increased, and the heat transfer efficiency of an air-cooled heat exchanger is improved; and meanwhile, corrosion and scaling of the finned tubes are effectively relieved, and the finned tubes are protected, so that the service life of the tube bundles of the air cooler is prolonged, and the operation safety and reliability are improved.

Description

technical field [0001] The invention relates to the technical field of evaporative air coolers and dry air cooler equipment, in particular to an indirect evaporative air cooler. Background technique [0002] The indirect evaporative air cooler integrates the air-cooled heat exchanger and the evaporative pre-cooler, effectively making up for the dry-type air-cooled heat exchanger when the ambient dry bulb temperature is 30-40°C, and the process medium requires an air-cooled temperature of 40-55°C Indirect evaporative air cooler absorbs the heat of the ambient air through the evaporation of water on the evaporative wall, and at the same time, the air entering the air cooler Humidification is carried out to make the humidity of the air reach a saturated state, and the temperature of the ambient air passing through the air cooler becomes the wet bulb temperature. When the air humidity is 65%, reduce the air temperature at the inlet of the air cooler by more than 10°C. It solves...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the existing dry air cooler and evaporative air cooler technology, the invention solves the low heat exchange efficiency of the dry air cooler when the effective logarithmic average temperature difference is low, and solves the problem that the evaporative air cooler cannot achieve effective evaporation of spray water The waste of a large amount of desalinated water can effectively block the catkins and dust in the air, reduce the cleaning frequency of the tube bundle, prolong the service life of the equipment and reduce the maintenance cost of the equipment

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