What is the importance of the cleaning of the water system of the chiller?
An investigation by more than 300 companies using water chillers shows that metal corrosion products such as scale, algae, biological slime, rust, etc. appear in the water system after the equipment has been operated for a period of time, and the energy efficiency has dropped significantly. The energy efficiency of general air conditioners has dropped by 8% after one year , The energy efficiency drops by 25% after three years of use.
water chiller system
During the normal operation of the chiller, these substances continue to accumulate in the condenser, heat exchanger, fan coil and pipeline, causing the pipeline flow to decrease and affecting the heat exchange effect. After the surface of the heat exchanger is covered with a dirt layer, the cold exchange efficiency of the heat exchanger will be greatly reduced, thereby increasing the pressure, cooling effect and power consumption of the heat exchanger. Dirt accelerates corrosion and shortens the life of the cold water unit, so it must be cleaned.
The cooling water system and chilled water system of the chiller:
The water system mainly relies on the cooling tower to dissipate heat. Due to the dripping and movement of the water droplets in the cooling tower, it will fully contact the air, and then bring a large amount of dust, microorganisms, soluble salts and corrosive gases into the cooling tower to make the water impurities The concentration continues to rise, causing great harm to the work of the chiller system.
Chilled water system is a sealed system that accumulates many inches. Dissolved oxygen in the water body is easy to form a blockage of the coil, causing corrosion of the unit and piping accessories, resulting in a decline in refrigeration capacity and early damage to the equipment, which directly affects the normal operation of the chiller system.
If the water quality of the refrigerant in the chiller is yellow or black, the accumulation is serious, and the piping equipment of the unit is corroded seriously; when the fan coil and blades are covered by dust, the air volume of the air outlet will be reduced. If the chiller system has the above-mentioned problems during operation, equipment cleaning and water treatment should be carried out immediately.
