Why the central air-conditioning system needs to be cleaned and maintained
Central air conditioning cleaning mainly includes the central air-conditioning ventilation system and central air conditioning water treatment.
The central air-conditioning ventilation system mainly includes the air duct, the fresh air duct, the central air-conditioning duct, air outlet, air outlet, air handling unit, fan coil, etc.. For a long time people of central air duct cleaning is neglected, in fact, used two or three years of air conditioning wind pipe has long been for bacteria, dust, grease against. Only the central air-conditioning duct system to carry out a comprehensive system of cleaning, purification and disinfection to provide good air quality. SARS after the central air conditioning cleaning work, can make office buildings, hospitals, shops, hotels, factories and other public places to prevent the virus through the air duct cross infection control prevention system, completely eliminate the perennial presence of pollution sources.
The central air conditioning water system is divided into cooling water system and chilled water system, the cooling water system is mainly cooling tower cooling tower. Water in the cooling tower in the spatter into numerous small drops of water or on the surface of the filler into membrane flow, fully contact with air, the air in large dust, microorganism, soluble salts and corrosion gas into the cooling water, increasing the concentration of impurities in the water; in addition due to water evaporation and leakage, dispersion, the concentration of impurity of water improve, which will give the operation of central air conditioning system bring a lot of harm. Cold water system is due to the corrosion of large, extremely easy to cause the pipe plug, the unit and piping accessories corrosion, affecting the normal operation of the system.
1) central air-conditioning duct cleaning
With the development of the society, people's living standards continue to improve, more and more places: such as star, senior buildings, factories, shopping malls, business centers and other public places generally use the central air-conditioning system to the indoor air temperature, humidity, air speed, etc., to meet the people on the indoor environment and living environment of comfortable space.
When you hover in the four seasons such as the spring of the environment, you can realize: the central air conditioning without a regular cleaning may spread disease. Air conditioning and indoor environmental pollution have become our health stealth killer.
As early as 1983, the World Health Organization has named a new disease: sick building syndrome. The disease refers to a long time in the indoor work of the headache, dizziness, eye irritation, throat itching, allergy, chest stuffy, irritability, attention is not focused, and a series of physical symptoms, and long-term in the indoor work of people who appear more than the physical symptoms, but usually it is attributed to the lack of indoor air caused by hypoxia. In fact, for a modern building, its supply of new air is through rigorous scientific calculation and have enough margin, if no special reason is not possible to cause fresh air. Therefore, the real cause of these symptoms is not the quantity of fresh air and the culprit, but to the indoor air quality! The central air conditioning ventilation system is the main cause of the city's "sick building syndrome", which is the key to prevent and reduce the incidence of sick building syndrome, and improve the indoor air quality is the key. According to a World Health Organization, the indoor air pollution caused by the disease is 5 times more than the outdoor pollution.
Since the outbreak of SARS in 2003, the central air conditioning system of the health status of the relevant departments and more users, especially the dust of the wind pipe system is a concern, such as SARS and other viruses attached to the dust, through the central air-conditioning ventilation system, each group or individual had cross infection, so it is very important to clean the central air duct system.