A water-saving dry closed cooling tower

Abstract

The invention discloses a water-saving dry closed cooling tower. The water-saving dry closed cooling tower comprises a tower body frame, a coiled heat exchange tube and a dry type heat exchange tube, wherein the tower body frame is provided with a cavity, the coiled heat exchange tube is fixedly inserted in the frame, and the dry type heat exchange tube is fixedly mounted in the cavity of the frame; the dry type heat exchange tube is provided with a cooling medium inlet, an air supply system which is used for supplying air to the dry type heat exchange tube is formed on the frame, a spraying assembly which is used for spraying water to the coiled heat exchange tube and cooling the coiled heat exchange tube is mounted above the coiled heat exchange tube, a water supplying assembly is connected to the spraying assembly, the dry type heat exchange tube is communicated with a cooling medium outlet tube through a first pipeline, the coiled heat exchange tube is communicated with the cooling medium outlet tube through a second pipeline, a first valve is arranged on the first pipeline, a second valve is arranged on the second pipeline, the coiled heat exchange tube and the dry type heat exchange tube are communicated through a third pipeline, and a third valve is arranged on the third pipeline. According to the water-saving dry closed cooling tower, the water-saving dry closed cooling tower can be used in a switchover mode at low-temperature or high-temperature periods of time, so that the evaporation loss of circulating water is reduced, and the normal operation of a production unit is guaranteed effectively.

Description

technical field [0001] The invention belongs to the technical field of cooling equipment, and in particular relates to a water-saving dry closed cooling tower. Background technique [0002] Since the circulating cooling water in the cooling tower is in direct contact with the air, the cooling water is easily polluted by impurities in the air. It directly affects the operating efficiency and service life of the cooling tower unit. Therefore, closed cooling towers are widely used in water cooling equipment in such areas. [0003] One of the heat exchange methods between water and air in the existing closed cooling tower is that the air flowing through the water surface is in direct contact with the water, through contact heat transfer and evaporation heat dissipation, the heat in the circulating water is transferred to the air, and the circulating water passes through the apparent cooling tower. The heat conduction method absorbs the heat of the cooling medium in the coil, a...

AI Technical Summary

Problems solved by technology

[0004] The heat exchange efficiency of the closed tower using the wet heat exchange system is high, but the circulating water is lost due to evaporation. The evaporation loss rate of the water volume is proportional to the temperature difference. The greater the temperature difference, the greater the water loss rate, and the wind will also cause water loss. Loss, its exothermic temperature is higher, resulting in larger evaporation

Therefore, the closed tower of the current wet heat exchange system can only be adapted to areas with sufficient water sources, and cannot guarantee the normal operation of production units in areas with insufficient water sources.

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