There are five major benefits of regular central air conditioning cleaning and maintenance

1. Enhance refrigeration. After cleaning with the special cleaning agent, the air conditioner is free of dust and dirt, the air exchange is smooth, and the cooling effect is obviously enhanced. Shanghai Central Air Conditioning Project

2. Good for health. After cleaning with a special cleaning agent, it not only greatly reduces the incidence of "air conditioning syndrome", but also purifies the indoor air and removes the strange smell generated by the air conditioner.

3. Extend the service life of the air conditioner. After cleaning with a special cleaning agent, the working environment of the air conditioner changes, and the life of the air conditioner is extended, and the air conditioner itself is as clean as new

4. Reduce power consumption. After cleaning, the air-conditioning environment changes, the work efficiency is improved, and the power consumption is reduced.

5. Reduce expenses. After cleaning and maintaining the air conditioner, the failure rate is reduced, the power consumption is reduced, and the expenditure is saved virtually. Shanghai air conditioning design

How often does the air conditioner need to be cleaned? The air conditioner should be cleaned and maintained 1-2 times a year. Many users have never cleaned the air conditioner for two to three years. The air conditioner works with illness for a long time, which is harmful to human health and reduces the service life of the air conditioner. It should be cleaned as soon as possible. Traditional air-conditioning cleaning can only simply flush the filter, and cannot fully clean the air-conditioning evaporator gap and air supply system. The inside of the evaporator is where dust clogging is serious and bacteria and viruses are easy to multiply. You should find a unit that specializes in air-conditioning cleaning for on-site service.

Why should the air conditioner be cleaned and maintained? By analyzing the working principle of the air conditioner, it is not difficult to find that it has the same effect as a vacuum cleaner when it works—drawing indoor air, after full contact with the humid evaporator, and then blowing it back into the room; in the long run, the air conditioner will filter after being used for a period of time. A large amount of harmful substances such as dust, dirt, amines, alkalis, viruses, etc. will accumulate on the nets and heat sinks.

In addition, the condensed water is flooded with the scattered pieces of the filter. In addition, the air-conditioned rooms rarely open windows for ventilation, which at the same time provides an environment for the mites to grow. When the air conditioner is shut down, the temperature recovery will cause mites and bacteria to multiply, mold, and produce peculiar smell, which will directly affect the health of air conditioner users, cause respiratory diseases, skin diseases, etc., posing a great threat to human health. Lead to the occurrence of air-conditioning syndrome (commonly known as "air-conditioning disease"), especially for newborns and children. The pain and discomfort caused by mites may even last a lifetime. Air conditioning repair

A large number of bacteria and viruses, as the hot and cold air circulates indoors and in the car, as the service life of the air conditioner increases, an invisible killer has reached out to human health. At the same time, these dirts hinder the circulation, * eventually lead to an increase in the working pressure of the refrigeration system and an increase in the operating load of the compressor, which is manifested as a decrease in the cooling and heating rate, an increase in power consumption and fuel consumption, an increase in noise, and even damage to the air conditioner. Bacteria and viruses pollute the air, spread diseases, and seriously endanger the physical and mental health of the human body. Therefore, the air conditioner must be cleaned after being used for a period of time. Only in this way can you ensure that you have a high-quality, comfortable and fresh air environment.

The necessity of regular cleaning of central air conditioners

1. The central air-conditioning bacteria exceed the standard severely

Since central air conditioners dominate the metabolism of air inside modern buildings, they are vividly called the "lungs" of modern buildings. The lobes of the lungs are delicate and easy to be invaded by evil, so it is also called "the delicate organs". In the same way, the central air conditioner is also easy to be invaded by dirt bacteria. The long-term operation of the central air-conditioning unit, the easy pollution of the ventilation system, and the untimely cleaning, have left a large amount of dust, sand, charcoal materials, crystals, etc. in the pipeline. Once bacteria, fungi, yeast and other microorganisms are attached to the dust, it is easy to cause people to suffer from allergies or respiratory diseases.

2. Dust in the air duct easily spreads germs

A common central air conditioner is mainly composed of two parts: an air handling device and a hot and cold air supply duct. The air treatment device is responsible for cold and heat treatment of the air, and the treated air is sent to each room through the air duct. Due to the relatively high humidity on the walls of the air duct, the particles in the air are easy to stick here, accumulating and forming a thick dust accumulation. . These dusts become a paradise for germs to breed, because there are nutrients, suitable temperature and humidity for their survival, germs will be happy to live, multiply and spread here.

3. Cleaning the central air conditioner is beneficial to energy saving

According to the survey, according to international practice, central air conditioners must be cleaned and maintained scientifically once a year, otherwise biological slime will be blocked, which will affect the cooling effect of central air conditioners, waste energy and increase maintenance costs. According to the information provided by the Japanese Kurita Water Treatment Company, the thickness of the scale is 0.2-0.5mm, the heat exchange efficiency is reduced by 33%, and the energy consumption of central air-conditioning operation increases by about 20% on average. Fourth, regular cleaning is beneficial to the air conditioner to "extend life."

Regular cleaning of central air conditioners can extend the service life. This is because regular cleaning of the central air conditioner can reduce the failure rate of the equipment. The accumulation of algae mud and scale in the cold water pipeline will cause poor transmission of equipment and pipelines, unsatisfactory heat transfer, and often cause high-pressure operation of the air-conditioning host, leading to failures and shutdowns. In severe cases, it may even cause corrosion and perforation of the host. The loss is inevitable .

Especially serious is that this kind of failure will also endanger the safe operation of the equipment, and its consequences are unimaginable. After cleaning, the rust, scale, and microbial contamination of the central air conditioner can be effectively removed and controlled. The heat exchange copper pipes of each part can be kept clean and in a good heat exchange state, reducing pipeline blockage and avoiding failures. At the same time, it can reduce maintenance costs and ensure the benign operation of the unit.

The hazards of fouling in the condenser of the heat exchanger

(1) Reduce the heat transfer effect. The thermal conductivity of carbon steel is 46.4-52.2W/(mk), but the thermal conductivity of carbonate scale is 0.464~0.697W/(mk), which is only about 1% of carbon steel. Scale or others The thermal conductivity of sediment is much lower than that of metal, so when scale or other sediments cover the heat exchange surface of the heat exchanger condenser, it will greatly reduce the heat exchange efficiency of the heat exchanger condenser and affect the product quality.

(2) Reduce the amount of circulating water. The sediment or microbial sludge covers the wall of the heat exchange tube in the heat exchanger condenser and even blocks the heat exchange tube, making the cross-sectional area and flux of the circulating water channel smaller, thereby making the heat exchanger The heat exchange effect of the condenser is further reduced. Extend the cooling time.

(3) Reduce the use effect of water treatment chemicals. Deposits and microbial sludge cover the surface of the metal, preventing water treatment chemicals such as corrosion inhibitors, scale inhibitors and fungicides in the water from reaching the metal surface of the heat exchanger condenser. Corrosion, scale inhibition and bactericidal effects, and some microorganisms will also react with some water treatment chemicals, thereby destroying and reducing the effectiveness of these chemicals.

(4) Accelerate the generation of corrosion deposits and microorganisms, promote the formation of concentration corrosion batteries and the generation of under-scaling corrosion, thereby increasing the corrosion rate of the heat exchanger condenser metal.

(5) Shorten the service life of industrial equipment. Deposits and microbial sludge cover the surface of the heat exchanger condenser to prevent the effective heat exchange of the equipment and cause metal fatigue; on the other hand, the occurrence of corrosion will cause the condenser such as heat exchange. The wall of the heat exchange tube of the heat exchanger is thinner, especially the corrosion and rust under the scale will also cause the leakage of the equipment.

(6) Increasing operating costs In order to maintain sufficient heat exchange efficiency for industrial equipment, measures such as increasing the amount of water must be taken. At the same time, it is necessary to increase the cost of repairing damage caused by corrosion and other reasons, thereby increasing the operation of industrial equipment. cost. In order to improve the heat exchange efficiency of the heat exchanger condenser, ensure product quality, save energy, prevent or reduce the corrosion of the heat exchanger condenser, and improve the life of industrial equipment, the industrial circulating water system condenser cleaning and heat exchanger cleaning should be carried out to remove Deposits on the surface and kills microorganisms.