Dry-wet combined cooling tower

Abstract

The invention discloses a dry-wet combined cooling tower which comprises a tower body, wherein a fan is arranged at the top of the tower body; a water reservoir is arranged at the bottom of the tower body; a spraying area, a heat exchange area and a hot air area are sequentially arranged between the fan and the water reservoir from top to bottom; a finned tube and a plurality of fins mounted on the finned tube are arranged in the heat exchange area; the heat exchange area is filled with heat exchange packing layers coating the finned tube and the fins; a water inlet main pipe for supplying water and a water returning main pipe for draining are arranged beside the tower body. The dry-wet combined cooling tower has the advantages of being compact in structure, high in heat exchange efficiency, low in manufacturing cost and good in integral heat exchange performance.

Description

technical field [0001] The invention relates to the field of heating, ventilating and air conditioning, in particular to a dry-wet combined cooling tower. Background technique [0002] The cooling tower is an important part of the HVAC system. Its function is to exchange heat between the circulating water carrying waste heat and the air in the tower, transfer the heat of the water to the air and disperse it into the atmosphere, and cool down the circulating water. The operating performance of the cooling tower directly affects the cooling and heating effect of the air conditioning system. Cooling towers are divided into wet cooling towers and dry cooling towers according to the contact mode of circulating water and air. [0003] The wet cooling tower conducts heat transfer and evaporative heat dissipation through direct contact between the circulating water spread on the surface of the filler and the air, and transfers the heat of the water to the air. The heat transfer ef...

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Problems solved by technology

[0004] Aiming at the problems of large water loss, water mist at the outlet of the wet cooling tower, and low heat exchange efficiency of the dry cooling tower, a dry-wet combined cooling that combines the advantages of the wet cooling tower and the dry cooling tower has been developed. tower

However, the currently developed dry-wet combined cooling tower has the following problems: 1. The dry heat exchange section and the wet heat exchange section in the existing dry-wet combined cooling tower are arranged in series, resulting in a large size cooling tower, complex structure, Manufacturing and operating costs are relatively high; 2. The existing dry-wet combined cooling tower is only a simple combination of dry cooling tower and wet cooling tower. The heat exchange efficiency of the dry heat exchange section in the wet combined cooling tower is low; 3. The load ratio of the dry heat exchange section and the wet heat exchange section in the existing dry and wet combined cooling tower to the total load of the cooling tower is not easy Adjustment, resulting in the cooling tower's poor adaptability to the ambient temperature and load range

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