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U Type UVC Tubes Amalgam Lamp Odor Purification Kitchen Fume 300W
WASTE GAS TREATMENT UV LAMP
300W U Type UVC Tubes Industrial Oil Waste Gas Treatment Odor Purification Amalgam Ultraviolet Light Kitchen Fume
Medium Pressure UV Lamp
The industrial photo-oxygen catalytic exhaust gas purifier can
effectively remove odor, and can effectively remove major
pollutants such as volatile organic compounds (VOC), inorganic
substances, hydrogen sulfide, ammonia, mercaptans, etc., as well as
various odors, and the deodorization efficiency can reach the
highest More than 99%.
1. Application principle
Let's talk about UV
Ultraviolet radiation is a general term for radiation with
wavelengths from 100nm (nanometer) to 400nm in the electromagnetic
spectrum, of which the wavelengths from 100nm to 200nm are vacuum
ultraviolet (UV-D), the wavelengths from 200nm to 280nm are
short-wave ultraviolet (UV-C), and the wavelengths from 280nm to
315nm It is medium-wave ultraviolet (UV-B), and the wavelength of
315nm to 400nm is long-wave ultraviolet (UV-A). The wavelength of
ultraviolet light is inversely proportional to the energy. The
longer the wavelength, the better the ability to penetrate the skin
or air. The shorter the wavelength and the stronger the energy, the
easier it is to cause skin lesions. UV-D cannot be effectively
transmitted in the air, and UV-C with shorter wavelength is almost
absorbed by the ozone layer. Therefore, the ultraviolet rays in
natural sunlight are mainly UV-A and UV-B, of which UV-A accounts
for about 98.1%, with UV-B accounting for 1.1%. To say a few more
words, UV-A can penetrate the skin epidermis to the dermis, and act
on the epidermal melanin of the skin, thereby causing skin
melanosis and darkening the skin. However, UV-B can hardly
penetrate the skin epidermis. A small amount of exposure to the
skin will promote blood circulation and generate vitamin D3, which
has a health care effect. Ultraviolet lamps that emit UV-B bands
are also commonly known as health lamps. When time acts on the
skin, photodermatitis can occur, erythema, itching, blisters,
edema, etc. appear on the skin, and excessive ultraviolet radiation
can also cause skin cancer. A moderate amount of sun exposure every
day can supplement calcium, which is beneficial to the human body.
Generally, 15 minutes of sun exposure a day is enough. If it is
irradiated by too much ultraviolet rays, it will damage the skin of
the human body. In addition to tanning and sunburning the skin, UV
rays can also accelerate skin aging. The short-wave ultraviolet
lamp uses the characteristics of mercury atoms to excite the
mercury vapor during gas discharge to emit ultraviolet rays of
254nm UV-C and 185nm UV-D wavelengths. UV-A and UV-B are the
corresponding fluorescence of 254nm UV-C irradiation. The
ultraviolet rays emitted by powder, by the way, short-wave UV-C is
currently widely used in sterilization and disinfection products,
and it emits a large amount of ultraviolet energy. If the bare skin
is irradiated by this type of ultraviolet light, it will cause
redness, swelling, itching, and scaling in mild cases; in severe
cases, it may even cause canceration and skin tumors. At the same
time, it is also an "invisible killer" of the eyes, which can cause
inflammation of the conjunctiva and cornea, and long-term exposure
may lead to cataracts.
Let's talk about the exhaust gas part
VOCs (volatile organic compounds) mainly include benzene, toluene,
xylene, styrene, trichloroethylene, chloroform, trichloroethane,
diisocyanate (TDI), diisocyanate, etc. and volatile malodorous
gases such as Saturated hydrocarbons (such as butadiene, styrene),
nitrogen compounds (such as ammonia, methylamine, skatole),
sulfides (such as hydrogen sulfide, methyl sulfide), chlorocarbons
(such as chloroform), oxygenated hydrocarbons (such as acetone),
plant essential oils (such as camphor oil) and other compounds.
Most of the odor pollutants are gas-phase pollutants, mainly
composed of carbon, hydrogen, oxygen, nitrogen, sulfur, halogen and
other elements. As far as the chemical structure is concerned, the
odorant molecules have the characteristic of stimulating the human
sense of smell because of the residual electrons.
Waste gas treatment technology is currently divided into three
categories: physics, chemistry, and biology. Generally, a single
technology or a combination of two or more technologies can be used
to complete a single odor treatment. The commonly used physical
methods are activated carbon adsorption or acid-base water washing
and spraying, the chemical methods are chemical washing and
incineration, and the biological methods include biological
washing, plant liquid spraying, biological trickling filtration,
biological filter beds, etc. , and developed the plasma
deodorization method.
The use of 254nm wavelength + 185nm wavelength dual-band
high-efficiency ultraviolet lamps to treat exhaust gas has been
transferred from abroad to China in the past two years, and is now
widely used in China. The essence is to use the O3 ozone produced
by the combination of UVD185 nanometer band and O2 to oxidize and
reduce the waste gas; the second is to use the high energy of 185
nanometer short-wave ultraviolet to crack the organic waste gas;
the third is to use the 254 nanometer ultraviolet light to
irradiate the medium coated with TIO2 -OH is produced to oxidize
organic waste gas.
Second, the technical characteristics of photolysis and
photocatalytic waste gas treatment:
1. Efficient deodorization:
Dual-band ultraviolet light combined with TiO2 photolysis catalytic
oxidation equipment can efficiently remove major pollutants such as
volatile organic compounds (VOC), inorganic substances, hydrogen
sulfide, ammonia, mercaptans, etc., as well as various odors, and
the deodorization effect greatly exceeds the national 1993.
(GB14554-93) odor pollutant emission standard promulgated in 2008.
Nine categories of 114 pollutants published by the US Environmental
Protection Agency have been confirmed to be treated by photolysis
and photocatalytic oxidation, and even atomic organics such as
halogenated hydrocarbons, fuels, nitrogen-containing organics, and
organophosphorus pesticides are also well removed. Effect.
2. Wide range of application:
It can adapt to the deodorization and purification treatment of
high and low concentration, atmospheric volume, and different
odorous gas substances, and can work continuously 24 hours a day,
with stable and reliable operation.
3. Low operating cost:
The equipment has no mechanical action, no noise, no need for
special personnel management and daily maintenance, only regular
inspections, low energy consumption of the equipment, extremely low
wind resistance of the equipment <50pa, which can save a lot of
energy consumption of exhaust power. Among them, the life of the
TiO2 catalyst is infinitely extended and does not need to be
replaced.
4. High technology content:
Advanced advanced oxidation technology is adopted to break through
the reaction limitation of a single system. In the whole reaction
system, two oxidants with strong oxidizing ability—O3 and OH
participate in the reaction and 185nm high-energy ultraviolet rays
directly crack the exhaust gas, which makes the deodorization
effect better. The odorous gas has a higher degree of
mineralization and can be discharged harmlessly without secondary
pollution.
5. The equipment occupies a small area and is light in weight:
It is suitable for special conditions such as compact layout and
small site; made of high-quality imported materials, waterproof,
fireproof, anti-corrosion, and long service life.
6. Product performance is stable:
At present, the technology of UV lamps and special high-power
ballasts is mature. In order to facilitate maintenance and repair
in the future, each ballast is provided with power supply and
working indicator lights, and the lamp or rectifier fault can be
checked according to the indicator lights. According to the
feedback of the bad phenomenon, just replace the lamp or ballast.