The UV-C wavelength range is 100-280nm.
C-band UV lamps are commonly known as UV germicidal lamps. UVC germicidal lamp
is a low-pressure mercury lamp, which is excited by lower mercury vapor
pressure (<10-2 Pa) to emit ultraviolet light. There are two main spectral
lines: one is 253.7nm wavelength; the other is It is 185nm wavelength, both of
which are C-band ultraviolet rays invisible to the naked eye.
Ultraviolet disinfection technology has
unparalleled sterilization efficiency of other technologies, and the
sterilization efficiency can reach 99%-99.9%. The traditional chemical
disinfection methods such as chlorine and ozone generally take 20 minutes to 1
hour to achieve the sterilization effect.
UVC germicidal lamps do not need to be
converted into visible light, and the wavelength of 253.7nm can play a good
sterilization effect. This is because cells have a regular absorption spectrum
of light waves. The ultraviolet rays at 250-270nm have the greatest absorption
and are absorbed. The ultraviolet light actually acts on the genetic material
of the cell, that is, DNA. It plays a kind of photochemical effect. The energy
of the ultraviolet photon is absorbed by the base pairs in the DNA, causing the
genetic material to mutate, so that the bacteria immediately die or cannot
reproduce. purpose of sterilization.
Ultraviolet germicidal lamps are generally
used to sterilize air, surfaces, and water. The wavelength of 253.7nm can
effectively kill bacteria and viruses. The predecessors have already conducted
a lot of research, which is a fact without a doubt. The characteristics of
ultraviolet sterilization are broad-spectrum, and some viruses that are
difficult to eliminate at high temperatures can be quickly eliminated with
ultraviolet rays. This is because the sterilization mechanism of ultraviolet
rays is different from other methods.
Sterilization: After the water molecules in
the air and the photocatalyst-treated surface are catalyzed by ultraviolet
rays, oxidation occurs to decompose the bacteria in the air.
Deodorization: Daily odor sources are
mainly ammonia, hydrogen sulfide, methyl mercaptan, acetaldehyde, etc.
Photocatalysts have more oxidizing ability than ozone and negative ions. These
odor sources can be irradiated by fluorescent lamps in the presence of
photocatalysts to produce photocatalyst oxidation. It acts to decompose the
odor source.
How to clean the UV lamp?
Taking into account the safety of the home
environment, we will choose to install ultraviolet rays, etc., which can play a
role in disinfection, especially for families with the elderly and children at
home, the installation of ultraviolet lamps is also to reduce the chance of the
elderly and children getting sick. So how do you clean the UV light?
One of the main functions of the ultraviolet
disinfection lamp is to be used for indoor sterilization and disinfection of
the family. For example, if there are elderly people at home, pets or babies
are kept at home, you can often use ultraviolet disinfection lamps, which can
effectively destroy the DNA and RNA structure of bacteria, kill bacteria and
inhibit the growth of bacteria and germs. At the same time, some enclosed
spaces can also use ultraviolet disinfection lamps, including refrigerators,
wardrobes, cars, etc., can use ultraviolet disinfection lamps.
Ultraviolet light is a low-energy
electromagnetic wave, which is widely used in medical treatment, health and
epidemic prevention, the food industry, pharmaceutical industry, and other
departments because of its good bactericidal effect. However, how to use the
ultraviolet lamp correctly to ensure its sterilization effect, prolong the
service life of the lamp tube, and avoid accidental injury requires every
operator to master it first. For places with poor light and ventilation in the
home, ultraviolet germicidal lamps are often used, which can effectively kill
various germs such as (bedding) mites and effectively create a healthy living
environment.
When using ultraviolet disinfection lamps,
the environment should be kept clean, and there should be no dust and water
mist in the air. When the indoor temperature is lower than 20 degrees Celsius
or the relative humidity exceeds 50%, the irradiation time should be extended.
After scrubbing the floor, wait for the floor to dry before sterilizing it with
a UV lamp.
Regular cleaning of the UV lamp is also to
ensure the aesthetics and disinfection effect of the lighting. When cleaning,
you must pay attention to selecting the appropriate cleaning agent, and dry the
lighting in time after cleaning. The above is the relevant introduction to how
to clean the ultraviolet lamp and what the ultraviolet lamp does. You can refer
to it when cleaning the ultraviolet lamp to avoid damage to the lamp caused by
the wrong cleaning method.