Why should shallow sand filter be used in cooling water circulation filtration system?
In the field of industrial circulating water, it is usually faced with a variety of problems such as mud, scale, silt deposition, which directly lead to the reduction of heat transfer efficiency, increase in consumption, pipeline blocking, and shorten the service life of equipment. Shallow sand filter can be used to solve these problems and ensure the stable operation of circulating cooling water system. Why are shallow sand filtersused in recirculating cooling water systems?
Shallow sand filtration system is composed of a number of standard filtration units, its internal water distributor and water collector, with two-way automatic washing valve, can be realized in the normal system operation of multiple standard filtration units one by one individual backwashing, automatic program control.
Because the circulating cooling water system is an open system, dust in the air, impurities and scale in the pipeline will enter the water to make the water quality worse, impurities become more easy to plug the copper tube of the heat exchanger, reduce the heat transfer rate, affect the effect of the whole cooling system.
Compared with the traditional filter, the shallow sand filter has the following advantages: continuous water supply in the backwash system, low water consumption in the backwash, small land area, no need for special foundation treatment, automatic control, simple maintenance, can reduce turbidity, so for the circulating cooling water flow is larger, faster filtration conditions, shallow sand filter is a good choice.
