【Equipment corrosion】

Cooling water system, a large number of devices manufactured by the metal, long-term use of recycled cooling water, if not effectively treated corrosion perforation occurs. This is caused by a variety of factors, mainly: the cooling caused by the electrochemical corrosion of dissolved oxygen in water; harmful ions (Cl-and SO42-) induced corrosion; microorganisms (anaerobic bacteria, iron bacteria) caused by corrosion. Equipment corrosion perforation wall will form leakage, or leak into the cooling water process medium, the loss of materials, pollution of water; or cooling water into the process medium, affect product quality, resulting in economic losses, affect safety。

【The breeding of microbes and slime】

In the circulating water, as Oxygen concentration, water temperature and sunlight, bacteria and algae to create the conditions for the rapid reproduction.。Mucus secreted by the bacteria in the dust floating in the water and chemical deposits and other impurities adhere together to form deposits attached to the heat transfer surface, that biological mud or soft dirt. Slime attachment will cause corrosion, cooling water flow reduction, water resistance increases, thereby reducing the cooling efficiency; severely blocked when the pipe, forcing the shutdown to clean。
Circulation in open water system, circulating water through the cooling tower, because of their contact with air causes lead to new sources of pollution, in the cooling process a large number of dust particles into the circulating water system. At the same time the moisture in the air and the combined effect of dust particles, so that recycled water pollution presents complex, so that turbidity increased。

【System Hazard】

Scaling, corrosion, microbiological slime is circulating cooling water of the three common serious problem，a direct result of the cooling water system corrosion，condensation temperature，compressor discharge temperature, the cooling capacity decreased，resulting in the device is not Safety factors，reducing cooling efficiency，energy consumption increases, shortening the service life and costs rising sharply。