空气冷却器的好处及应用

Advantages and application of air cooler

空气冷却器是换热设备的一类，用以冷却流体。通常用水或空气为冷却剂以除去热量。

Air cooler is a kind of heat exchange equipment to cool the fluid. Water or air is usually used as a coolant to remove heat.

采用空气冷却器可节省大量工业用水，减少污染，保护环境，降低基建费用。为扩大空气冷却器的使用范围,20世纪60年代出现了增湿式空气冷却器,即在管束前增加喷水装置，利用少量雾化水在翅片表面的蒸发作用显着地强化传热，其传热效能较干式提高2～4倍。增湿式空气冷却器已在炼油厂得到广泛应用。干式空冷管束和湿式空冷管束亦可组成联合型空气冷却器。研制低接触热阻和高传热效能的翅片管、低电耗、低噪声的通风机是空气冷却器发展的关系。

The use of air cooler can save a lot of industrial water, reduce pollution, protect the environment and reduce infrastructure costs. In order to expand the application range of air cooler, the humidified air cooler appeared in the 1960s, that is, adding water spray device in front of the tube bundle, and using the evaporation of a small amount of atomized water on the surface of fins, the heat transfer efficiency is increased by 2-4 times than that of dry type air cooler. The humidified air cooler has been widely used in refineries. Dry air cooling tube bundle and wet air cooling tube bundle can also form combined air cooler. The development of air cooler depends on the development of finned tube with low contact thermal resistance and high heat transfer efficiency, and a fan with low power consumption and low noise.

空气冷却器有间壁式冷却器、喷淋式冷却器、夹套式冷却器和蛇管式冷却器等。空气冷却器可用于冷却或冷凝,广泛应用于:炼油、石油化工塔顶蒸气的冷凝；回流油、塔底油的冷却；各种反应生成物的冷却；循环气体的冷却和电站汽轮机排气的冷凝。

The air cooler includes wall cooler, spray cooler, jacket cooler and snake tube cooler. Air cooler can be used for cooling or condensing. It is widely used in the condensation of overhead steam of refining and petrochemical tower, the cooling of return oil and tower bottom oil, the cooling of various reaction products, the cooling of circulating gas and the condensation of exhaust gas of steam turbine in power station.