Why should the cooling circulating water system be filtered by a shallow medium filter?


What is a shallow media filter?

The shallow medium filter consists of one or more standard high-speed filter units. The water flows through the internal water distributor and water collector, and uses the quartz sand medium to remove particulate matter and reduce turbidity.

What are the characteristics of shallow media filters?

It is characterized by high filtration rate, low pressure loss; modular setting, small footprint; manual, semi-automatic, fully automatic backwashing optional; backwashing water source optional system, water tower or external water source, and can be automatically switched; filter Unit size 20''-56'' optional; material carbon steel, stainless steel optional.

Why should a shallow medium filter be used in the cooling circulating water system?

Because the cooling circulating water system is an open system, dust, impurities in the air and scale in the pipeline will enter the water and make the water quality worse; if the impurities increase, it is easy to block the copper tubes of the heat exchanger, reduce the heat exchange rate, and affect the whole. cooling system effect;

The shallow medium filter can filter impurities in the water, reduce turbidity, reduce the clogging rate of copper pipes, and maintain the normal operation of the cooling system, so the cooling circulating water system needs a shallow medium filter.

Why side filter?

There are two reasons for doing side filtering:

1. Cost: The circulation volume of the cooling system is generally relatively large (the volume of the system can be as high as 4000T/H), and the cost of full filtration is relatively high;

2. Circulation: The water system is circulating, and the effect of side filtration is superimposed. For a long time, the water in the system has been filtered to achieve the filtration effect;

What parameters are related to filter flow selection?

According to years of application experience, the filter flow selection is mainly based on the circulation volume of the cooling system, generally 2%-5% of the circulation volume is appropriate.

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