Sterilization principle of ultraviolet sterilizer According to the difference of its biological function, ultraviolet sterilizer can be divided into UV-A (320-400nm), UV-B (275-320nm), UV-C (200-275nm) and vacuum ultraviolet rays . In water treatment, the UV-C part of the ultraviolet sterilizer is actually used. In this band, the vicinity of 260nm has been proved to be the most efficient ultraviolet ray for sterilization. The wavelength of the Yelan brand ultraviolet sterilizer is 254mm, which is a wavelength with higher sterilization efficiency.
The ultraviolet sterilizer integrates comprehensive sciences such as optics, microbiology, mechanics, chemistry, electronics, and fluid mechanics. The strong ultraviolet UV-C light generated by a specially designed high-efficiency, high-intensity and long-life ultraviolet UV-C light generator is used to irradiate the flowing water. When bacteria, viruses, etc. in water are irradiated by a certain dose of ultraviolet UV-C light (wavelength 253.7nm) of the ultraviolet sterilizer, their cell DNA and structure are destroyed, and cell regeneration cannot proceed, thereby achieving water disinfection and purification.
The spectral line with a wavelength of 185nm can also decompose organic molecules in water, generate hydrogen radicals, and oxidize organic molecules in water to carbon dioxide to achieve the purpose of removing TOC. Ultraviolet sterilizers have the following advantages: 1. High-efficiency sterilization of ultraviolet sterilizers: The use of ultraviolet rays to sterilize bacteria and viruses can generally reach a sterilization rate of 98%-99% in one to two seconds. 2. Ultraviolet sterilizer has high-efficiency sterilization and broad-spectrum performance: the broad-spectrum performance of ultraviolet sterilization is the highest, and it can kill almost all bacteria and viruses with high efficiency.
3. Ultraviolet sterilizer has no secondary pollution: ultraviolet sterilization does not add any chemicals, so it will not cause secondary pollution to the water body and surrounding environment, and will not change any components in the water. 4. The operation of ultraviolet sterilizer is safe and reliable: the traditional disinfection technology such as chloride or ozone, the disinfectant itself is a highly toxic and flammable substance, but there is no such hidden danger in the ultraviolet disinfection system. 5. The operation and maintenance cost of ultraviolet sterilizer is low: the ultraviolet sterilizer occupies a small area and the structure requirements are simple, so the total investment is less, and the cost in operation is also lower. At the level of 1,000 tons of water treatment, its cost is only that of chlorine disinfection. 1/2.
Features of ultraviolet sterilizer disinfection equipment 1. The ultraviolet sterilizer uses high-efficiency UV-C (LL or LH) ultraviolet lamps. It uses the world's leading low-pressure high-intensity ultraviolet lamps, and the service life of the lamps is guaranteed to be more than 9,000 hours. 2. The ultraviolet sterilizer uses high-transmittance, high-purity quartz sleeves to ensure that the ultraviolet transmittance is above 90%. 3. The ultraviolet sterilizer adopts the world's advanced constant and high-intensity ultraviolet special ballast, which can ensure the normal operation of the whole system under complex conditions.
4. The ultraviolet sterilizer uses high-quality stainless steel as the reactor (304 or 316 material), and the inner wall of the reactor is specially polished to improve the sterilization effect. Poolking is the best swimming pool equipment manufacturer and supplier in China. Poolking exists to provide the highest quality swimming pool equipment while offering competitive pricing..