Manufacturing process and cleaning requirements of air cooler
Source: http://le-signal.com/ Time: 2019-02-21
The air cooler mainly uses air as its coolant in the process of use. The equipment is mainly composed of a bracket, a tube bundle and a fan during the use of the device. The hot fluid of the air cooler flows in the tube, and the air is outside the tube bundle. Blow through.
The material of the air cooler and the material of the tube bundle have a great impact on the performance of the equipment. Because the heat transfer coefficient of the air side is very small during use, air cooler manufacturers often effectively increase their fins outside the tube, so that they can Increase its heat transfer area and fluid turbulence to a certain extent.
The air cooler often uses a light pipe with an outer diameter of 25 mm when in use. The fins are generally made of a material with high thermal conductivity during use, and will be wound or inlaid on the light pipe during use. To enhance the heat transfer effect of air coolers, air cooler manufacturers can spray water in the inlet air to humidify them.
The manufacturing process of the air cooler mainly includes integral forming, high-frequency welding, welding, and mechanical connection. The integrally formed fins are integrated with the tube. The heat transfer, mechanical and thermal expansion performance is good, but the manufacturing cost is high and it is suitable for low Finned tube.
During the cleaning process of air cooler manufacturers, most of the cooling water will contain its magnesium ions, calcium, acid carbonate and other components. When the cooling water flows over the metal surface, carbonates are formed.
Oxygen dissolved in the cooling water in the air cooler will also cause metal corrosion when in use, which will directly form rust. Due to the generation of rust, the heat exchange effect of the condenser is reduced, and in severe cases, it must be sprayed and cooled outside the casing. Water, if the scale is serious, will block the tube, so the heat exchange effect will be lost.
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