Basic Information On Germicidal Lamps

November 10, 2022

Basic Information On Germicidal Lamps

High quality germicidal lamp actually belongs to a low pressure mercury lamp. The low pressure mercury lamp is activated by the low mercury vapor pressure (<10-2Pa) to emit ultraviolet light, which has two main spectral lines: one is 253.7nm; The other wavelength is 185nm, both of which are invisible ultraviolet light, which is safe.

High-quality germicidal lamps do not need to be converted into visible light, and the wavelength of 253.7nm can play a good bactericidal effect. This is because there is a rule in the absorption spectrum line of the light wave of cells. Ultraviolet rays at 250~270nm have the greatest absorption. The energy of UV photons is absorbed by the base pairs in DNA, causing genetic material variation, so that bacteria immediately die or can not reproduce offspring, to achieve the purpose of sterilization, the effect is good.

Ultraviolet disinfection and sterilization are widely used in hospitals, schools, nurseries, cinemas, buses, offices, families, etc., it can purify the air, eliminate the mildew smell, the second can also produce a certain amount of negative oxygen ions, the ultraviolet disinfection room, the air is particularly fresh. In public places, ultraviolet disinfection can prevent some germs from spreading through the air or through the surface of the object. The application of long-life ultraviolet germicidal lamp in water disinfection and environmental protection engineering is of great significance. Water disinfection equipment, such as pure water system, generally operates in 24 hours. The life and reliability of high-quality ultraviolet germicidal lamp are required to be high.

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