Classification of UV sterilizers

The ultraviolet sterilizer mainly plays a sterilizing role through ultraviolet radiation. The working principle of the ultraviolet sterilizer belongs to pure physical disinfection. It has the advantages of simple and fast operation, high stability, no secondary pollution, easy management and automation. Among them, UVC ultraviolet rays are the main ones, and C-band ultraviolet rays are easily absorbed by the DNA of organisms, especially ultraviolet rays around 253.7nm are the best.

Ultraviolet rays in ultraviolet sterilizers are invisible rays located in the high-energy area of ​​sunlight. According to the wavelength, the ultraviolet rays in the ultraviolet sterilizer are divided into: near ultraviolet (UVA), far ultraviolet (UVB) and ultra-short ultraviolet (UVC). The degree of penetration of ultraviolet rays into human skin in ultraviolet sterilizers is different.

The longer the wavelength of ultraviolet rays, the greater the harm to human skin. Long-wave UV rays pass through the dermis, while medium-wave UV rays enter the dermis. 400-320nm is long-wave ultraviolet (A-band) UVA320-275nm is medium-wave ultraviolet (B-band) UVB275-200nm is short-wave ultraviolet (C-band) UVC200-100nm is vacuum ultraviolet (D-band) UVDUVA is referred to as purple light tube (black light lamp), Its peak wavelength is 365nm, and it can excite many chemical substances, especially pigments, dyes and fluorescent materials to emit secondary light, producing wonderful illusion effects.

Therefore, it is widely used in the special lighting of disco dance halls, theaters and stages. In addition, it is also used for trapping and killing insects, metal surface flaw detection, object identification and other purposes. For example, paint fluorescent substances on the surface of metal parts, and then observe whether there are cracks under 365nm ultraviolet light.

Ultraviolet sterilizer UV tubes (black light lamps) are also used for banknotes, paintings and other identification work. UVB has a strong physiological effect on the human body. It can cause the photochemical process and photoelectric process of the skin body. The normal work of endocrine system and circulatory system can play a positive role. An important health care function of UVB is to irradiate the skin with ultraviolet light with a wavelength of 280nm, so that 7-dehydroergocholine in the skin can be converted into vitamin D3 and D2.

Vitamin D3 can ensure the normal calcium and phosphorus circulation of the human body. In addition, UVB can also cure rickets. Due to the short wavelength of C-band ultraviolet rays and the high energy level of photons (95-125 kcal/gram molecule), UVC has the most significant biological effect in the entire ultraviolet band.

The nucleoprotein and ribonucleic acid of biological cells tend to strongly absorb the energy of this band, which is very destructive to organisms and microorganisms. Usually it is not suitable to use UV-C to irradiate the human body, but its killing rate for bacteria is almost Up to 100%. Therefore, UV-C is often used in hospitals, food factories, and pharmaceutical factories to sterilize air and water. Ultraviolet sterilizers use the performance of ultraviolet rays to destroy bacteria and microorganisms in different environments, and play a role in sterilization and disinfection, which has far-reaching significance for human production and life.

The production of ultraviolet sterilizers is one of the most comprehensive applications of ultraviolet rays. Ultraviolet sterilizers have an important impact on human production and life, and have become irreplaceable disinfection equipment in many fields. 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..