What is the use area of circulating air ultraviolet sterilizer?
It depends on the coverage area of the ultraviolet lamp you use for disinfection. Also consider the power of the lamp? One thing to note: ultraviolet rays are not effective when there are no direct rays or obstacles, so the small room should be equipped with ultraviolet lamps; The disinfection time is generally 20-60 minutes.
1, gas disinfection
Ultraviolet lamps are mainly used for gas disinfection in homes, hospitals, clinics and school laboratories to reduce the total number of bacteria in the air. A 30-watt ultraviolet lamp can directly illuminate the total area of 9 square meters of road surface, and the power or quantity of the required ultraviolet lamp can be calculated according to the size of the total area. The lamp is placed at a height of 2-2.5 meters from the road surface and directly shines on the top gas in the room. Because the air flows and diffuses, the gas in the whole room can be disinfected.
2, surface disinfection
You can use ultraviolet light directly to disinfect the home pavement, desktop and cabinet table. The ultraviolet lamp is equipped with a reflector with good reflecting surface force, the output power of the light pipe is not less than 2 watts per square meter, and the relative height spacing of the light pipes is not more than 120- 150 cm. The reasonable area of direct ultraviolet radiation is1.5-2m of the outer diameter of the light pipe. When the surface is disinfected, it is stipulated that the countertop of the cabinet should be clean and bright, so that all surfaces can shine, and the actual killing effect is better.
3, water disinfection
Water needs to be disinfected by ultraviolet microwave. Water must be completely transparent, and turbid water is directly related to ultraviolet sterilization. Therefore, it is stipulated that water has no color and no particles to achieve better disinfection effect. When using ultraviolet lamp to disinfect drinking water, do not soak the bulb in water, the water depth should not exceed 2 cm, and let the running water receive the irradiation dose of more than 90,000 microwatts per cubic centimeter to achieve efficient disinfection. The killing rate of general drinking water is 99%.
What are the advantages and disadvantages of circulating wind ultraviolet sterilizer?
Air-supply ultraviolet sterilizer technology has the following obvious advantages:
1, rate sterilization: ultraviolet C- disinfection technology has the high sterilization efficiency of other technologies. The bacteriostatic effect of ultraviolet rays on bacteria and viruses is generally within one second. However, for traditional ultraviolet rays, hydrogen and its reactive oxygen species, it usually takes 20 minutes to an hour to achieve the effect of ultraviolet rays.
2. Wide sterilization spectrum: UV technology In every disinfection technology at this stage, the air supply mode UV sterilizer has a wide sterilization spectrum. It can effectively kill almost all bacterial and viral infections. At the same time, it can reasonably kill some sparganium which is very harmful to human beings, but hydrogen can't or can't reasonably kill reactive oxygen species.
3. No secondary pollution: Because ultraviolet technology can be manipulated, it only sterilizes without adding all chemicals, which will not cause secondary pollution to water quality and surrounding environment. It won't change everything in the water. For chlorine disinfection, phenol compounds produced by chlorine and organic matter in water will be recognized as carcinogenic to human health, and chlorine chemicals contained in water will react on some occasions, which will cause harm to aquatic organisms and their water environment management. Reactive oxygen species have similar problems. A large amount of odorous active oxygen, which is insoluble in water, volatilizes into the air, which is harmful to the health of workers around.
Defect: the lamp must be replaced on time.