Water treatment process of Zhengzhou central air conditioning repair center

Service items: Water treatment of Zhengzhou central air conditioning repair center
Chemical cleaning and coating of central air conditioning circulating water system
Central air conditioning circulating water system is mainly divided into two categories: circulating cooling water system and circulating chilled water system. The cooling water system is an open system and is exposed to the atmospheric environment. It is continuously concentrated as the water temperature changes. In addition, the turbidity in the environment falls and settles. A large amount of scale, rust, microbial slime and other impurities will accumulate in the system. things. Although the chilled water system is a closed system, during operation, when dissolved oxygen in the water contacts the inner wall of the pipeline, corrosion products such as iron oxide will be generated. Scale, rust, etc. will block the ends of the copper tubes and fan coils in the host, slow down the water circulation, increase the thermal resistance, reduce the air conditioning effect, increase the system operating costs, and reduce the service life of the equipment.
In view of the common conditions in the operation of the air conditioning system, the entire air conditioning system is sterilized and algae treated, and chemical cleaning methods are used to discharge all impurities in the system pipes. The chemical pre-filming isolates the dissolved oxygen in the water from the inner wall of the pipes. Iron oxide will not be generated or very little will be generated, thereby ensuring that there is no rust in the pipeline and extending the service life of the pipeline.
Year-round water quality treatment for the central air-conditioning circulating water system
After chemical cleaning and coating are completed, the system enters the normal operation stage. According to the characteristics of different circulating water systems and combined with the company's water stability test, the preliminary pharmaceutical formula and Initial dosage concentration, corrosion inhibition, scale inhibition and sterilization treatment. Then, based on the tracking analysis of water quality and dosage and the monitoring of water treatment effects, the water treatment chemical formula can be adjusted in a timely manner. This can ensure the optimal combination of chemicals and the customer's circulating water system to achieve the best effect of water treatment.
Mainframe cleaning of central air-conditioning chillers and heat pump units
During the long-term operation of the central air-conditioning main unit, the condenser and evaporator in the main unit, especially the copper tube wall of the condenser, are prone to scale and rust. Scale will clog the copper tubes, reduce the heat exchange efficiency, and cause the chiller to approach the temperature difference (or small temperature difference) to rise sharply, resulting in a decrease in the cooling effect of the unit. In severe cases, the unit may even trip due to high-pressure protection. To address the above phenomenon, we use physics and chemistry Method to completely remove scale, rust, slime, etc. on the inner wall of the copper pipe to ensure the normal operation of the host. Host cleaning includes two methods: physical cleaning and chemical cleaning.
Physical Cleaning
It is an economical and effective method to blast through the copper pipes on the water side of the main machine. It is suitable for slight soft scale on the copper pipes on the water side of the main machine or for new systems. The specific operation is to open the end cover of the main engine, use a cannon to pass through the copper pipes one by one, clean the biological slime and rust residue on the pipe wall, rinse it with high-pressure water after the pass through, and then clean the sides of the water chamber and the inner wall of the end cover. Thoroughly remove all rust residue and scale, and apply anti-rust paint twice to remove rust, prevent rust, remove scale, and prevent scale. The copper pipe on the water side of the host is generally cleaned once a year.
Chemical Cleaning
Adopt a single cycle professional cleaning method, using organic polymer chelating cleaning agents, coupled with high-efficiency corrosion inhibitors. The corrosion of copper pipes is more than ten times lower than that of inorganic acids. It is effective On the basis of protecting the equipment, it can quickly remove scale and rust. After cleaning, pre-filming the copper pipes can greatly slow down the corrosion rate of the equipment. The specific steps are chemical descaling, rinsing and neutralization, and chemical pre-filming.
Since the structure of the central air conditioner is relatively complex, many of its components are relatively specialized. Therefore, if we do it ourselves, we can only clean the external unit of the air conditioner, but the bacteria inside the condenser and evaporator of the air conditioner cannot be cleaned. , so the cleaning of central air conditioners requires professional air conditioner cleaning personnel.
Company information introduction
Company name Xianghe Home Appliance Refrigeration Maintenance Department, Guancheng District, Zhengzhou City
Mailing address East Street, Chengdong Road, Guancheng District, Zhengzhou City, Henan
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Contact Manager Li
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