First, according to the industry's choice.

Water-cooled chillers and air-cooled chillers have their own characteristics. Users of water-cooled chillers should consider comprehensively and choose them according to different environment, space, refrigeration capacity and different urban areas.

Two. Cooling mode of chiller

Air-cooled chiller adopts air cooling mode, eliminating cooling tower, circulating water pump and pipeline system which are indispensable to cooling water system, avoiding condenser fouling and water pipe blockage in areas with poor water quality, and saving water resources. It is the most economical and simple cold water to maintain and maintain in chilled water air-conditioning equipment at present. Machine. Air-cooled chillers have a higher one-off investment than water-cooled chillers, but the annual operating cost is lower than water-cooled chillers. In addition, the noise of air-cooled chiller is high, the heat discharged is directly emitted in the installation site of the chiller, so the operation of the ambient temperature requirements, can only be installed outdoors.

The water-cooled chiller must be equipped with cooling towers and circulating pumps. Compared with the plastic industry, low temperature areas or spring, autumn and winter can use cooling towers for heat dissipation, so water-cooled chillers occupy an absolute advantage. However, the open cooling circulating water system, because the cooling water absorbs heat, contacts with the air, CO2 escapes into the air, dissolved oxygen and turbidity in the water increase, easy to cause corrosion, scaling, bacteria and algae breeding and sludge problems in the cooling circulating water system, if not treated water quality will seriously damage the chiller, greatly reduce Low heat exchange efficiency, resulting in waste of energy. Therefore, corrosion inhibition, scale inhibition, sterilization and algae killing are very important for water system.

Three, chiller price

Both water-cooled chillers and air-cooled chillers can be used in low-power systems. Most of the high-power units use water-cooled chillers. Water-cooled chiller on the main engine, than the air-cooled chiller price concessions, but with the cooling tower and circulating water pump, the price is not much less. But in recent years, the central air-conditioning system engineering application of air-cooled chillers more, which shows that the price is not a problem, the key is to the industry needs.

Four, unit life:

The design of the air-cooled chiller evaporative air conditioning system has an effective life of 5-8 years (ordinary air conditioning equipment).

The service life of water-cooled chiller air conditioner is more than 20 years (water-cooled screw type chiller).

The service life of air-cooled chiller is 6-11 years.