Ventilator of Air Cooler

摘要

Article deals with a design of the ventilator for the air cooler. Air coolers or condensers are common part of the cooling system. These machines can be found in energy equipment or other various industry, e. g. mining industry (natural gas, petroleum), chemical, food and consumer industry including refineries. They substitute big cooling towers especially in industry plants which are near the towns. Cooling tower building will be in contradiction with environmental protection and landscape aesthetics. The important aspects of the cooling type selection are price and water accessibility for cooling. From this point of view the air coolers are unambiguously preferred. The water consumption is minimal (compare to cooling towers). The air cooler consists of steel frame, where the tube bundle with ribbed tubes is installed. The air is driven by ventilator between space and ribs of tubes. Behind ventilator in flow direction, the distribution equipment is placed (usually fixed). Predominantly, the axial low pressure (exclusionary mid-pressure) ventilators with big diameter and low revolution are used for air coolers.