Manufacturers share little knowledge of UV lamp manufacturers: 1. The origin of ultraviolet air disinfection. Early research on air disinfection began in the 1920s. It began to be used in hospital operating rooms in 1936, and in 1937 it was first used in schools to control the spread of rubella. 2. Principle of ultraviolet lamp
disinfection The uv lamp is a low-pressure mercury lamp, which uses the ultraviolet light emitted by the excitation of mercury vapor at a lower pressure (<10-2Pa) for irradiation and disinfection. There are two main emission spectrum lines of ultraviolet disinfection lamps lamps: 253.7nm wavelength and 185nm wavelength, and the peak wavelength is 253.7nm. These two wavelengths of ultraviolet light can play a good bactericidal effect. The former can directly act on the genetic material of biological cells, which is DNA, which can damage the DNA and cause the death of bacteria. It also has the function of decomposing ozone; the latter can pass It reacts with oxygen in the air to produce ozone with strong oxidizing effect, thereby killing bacteria. 3. Precautions for the use of ultraviolet lamps 1. Method of use (1) Surface disinfection and irradiation method: The best method is mobile close-range irradiation, or suspended irradiation, and small items can be placed in a UV disinfection box for irradiation . The distance between the sterilized item and the lamp tube is easy to be within 1 meter, and the surface of the item must be directly illuminated. The rough surface of paper, fabric, etc. must be properly extended for exposure time, and both sides must be irradiated. (2) Indoor air disinfection can be done by direct irradiation or indirect irradiation. The former uses mobile or suspended UV lamps to irradiate directly, and needs to be implemented under unmanned conditions. The number of indoor UV lamps installed is>1.5W/m3, the lamp tube is within 2 meters from the ground, and the irradiation time is ≥30 minutes, the latter The high-intensity ultraviolet air sterilizer is used to irradiate, the disinfection effect is reliable, and it can be used indoors when there are people. It needs to be turned on for ≥30 minutes. 2. Precautions (1) The effective disinfection time of the ultraviolet lamp
tube is 1000h, and the effective disinfection time of the high-intensity ultraviolet air sterilizer is 1500h, which should be replaced on time; (2) During use, the surface of the light should be kept clean, using 75 per week. Wipe it with a% ethanol cotton ball once. When there is dust or oil on the surface of the lamp tube, wipe it at any time. (3) The disinfection room should be clean and dry, the temperature should be 20-40℃, and the relative humidity should be less than 80%. If it exceeds this range, the irradiation time should be extended; (4) Ultraviolet radiation intensity. It is tested every six months, and those below 70uW/cm2 should be replaced at any time. (5) Do not direct ultraviolet rays to people, so as not to cause damage. (6) Record the disinfection date, irradiation time, cumulative lamp use time and replacement time, and bacterial culture and results of disinfected items at any time.
The importance of portable uv lamp has increased as uv disinfection lamp have become a must in our daily life.
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The uv sterilization lamp uv air purifier has significantly numerous benefits over other uv disinfection lamp systems, which makes it first choice for uv sterilization lamp.
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