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Circulating water for industrial water-saving scheme -- circulating cooling water treatment system

Time: 2019-11-29

           In the basic way of water saving and emission reduction, the recycling and reuse of wastewater in the category of engineering water-saving is the two most effective and most widely used. At present, the utilization rate of industrial water in China is less than 50%, while that in developed countries is more than 85%. Therefore, the implementation of cooling water, especially the recycling of simple cooling water and raising the utilization rate of cooling water, has become the focus of industrial water saving and the main effort of industrial water-saving. The industrial circulating cooling water treatment system produced by Chongqing Lide water treatment company has Scale inhibition, scale removal, sterilization, algae killing, corrosion protection, rust prevention, energy saving, environmental protection Once completed, do not need to add drugs, do not need to clean the equipment during use, do not take any other way to deal with the circulating water, reduce equipment losses, thus saving the manpower, material resources, financial and energy expenses of the enterprise.

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Classification of circulating cooling water system
The circulating cooling water system can be classified into closed and open type according to the requirements of production process, water cooling mode and cooling way of circulating water.
1. Closed circulating cooling water system
The supplementary water of closed circulation cooling water system usually uses softened water, desalted brine or freezing liquid, so the possibility of scaling is very small. The main problem is to prevent rot, but the main thing is to choose proper suitable turbidity inhibitor and put it into water once to maintain certain content. Therefore, the water treatment method is simple and the operation and maintenance are simple. However, the cooling process of closed loop system can only be carried out by means of conduction heat transfer, with low cooling efficiency, high equipment cost and high power consumption. Therefore, it is used only in water scarcity areas or some special industrial sectors.
2, open circulation cooling water system
The open circulating cooling water system is the most widely used circulating cooling system at present. According to whether the circulating water is directly contacted with the cooling material, process medium or device, the open circulation cooling water system can be divided into three types: clear circulation, pollution circulation and dust collecting cycle.
Abnormal treatment of circulating cooling water operation
Although the circulating water quality is determined by the supplementary water quality, it is also regulated by the operating conditions of the circulating water. The change of operating conditions is actually the adjustment of the circulating water quality. The main factors affecting the quality of circulating water are concentrated concentration and pH value of circulating water. They indirectly affect the total dissolved solids, calcium hardness and basicity of circulating water, and affect the saturation pH value, saturation index and stability index of water, which determine the tendency of circulating water corrosion or scaling. Therefore, it is necessary to choose suitable operation conditions at the same time.

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