• Ultraviolet sterilizer
Is in 240 ~ 280 nm UV wavelength range most kill destroy bacteria and viruses of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), the molecular structure of the growing cell death and (or) regenerative cell death, to achieve the effect of sterilization.
UV sterilization is strongest especially when the wavelength is 253.7.
This band overlaps with the UV absorption of deoxyribonucleic acid in the microorganism's nucleus and the range of photochemical sensitivity, as shown below.
The spectra of RNA and deoxyribonucleic acid were shown in the figure of 240~280nm
Usually think that UV light can change and destroy the structure mutation, change the cell's genetic transcription feature, make the organism loss of protein synthesis and replication ability to reproduce, other protein absorption (aromatic ring of phenylalanine, tryptophan and tyrosine absorption peak at 280 nm) may also play a role of ultraviolet sterilization process.
The wavelength of UV light reaching the ground after the normal sunlight penetrates the atmosphere is 287~ 390nm, which deviates from the optimal sterilization wavelength range (about 250~ 285nm).
The absorption of the ozone layer mainly reduces the intensity of UV light in the solar spectrum below 290nm. Therefore, the sterilization ability of sunlight is less than that of special UV sterilization lamp.
• The characteristics
UV bactericidal action is stronger, but the penetration ability of the object is very weak.
It is used in operating room, burn ward, infectious ward and sterile room space disinfection and disinfection of heat-resistant articles and mesa surfaces.
Ultraviolet lamp life
The aging of the lamp will cause the lamp to lose 30% to 50% of the luminous intensity. Sometimes light to medium ageing heating method can be used to restore (such as the aging of quartz can be heated to 1000 ° C, maintain several hours). In order to ensure the efficiency of sterilization, the actual use time of the lamp tube should be replaced at 75% of the nominal life. The reliable way to measure aging is to measure the intensity of the output light of the tube regularly, preferably to determine the emission spectrum. It is suggested that for the low-pressure ultraviolet lamp disinfection system, the lamp should be replaced when the radiation intensity reaches 25W/cm. The effective use time of the early low-voltage lamp tube (defined as the use time when the luminous efficiency drops to 70% of the initial value) is generally 1000~3000h (75-14000h abroad), which has been increased to about 8000~ 12000h.
When the lamp is activated, the life effect of the lamp tube is greater. For the low-voltage lamp tube, it usually takes 3~6min for each start, and usually the time calculation is calculated according to the effective use of 3h. The stable time of the high-pressure lamp tube is about 5~10min at each start, and it is used to calculate the effective use time of 5~ 10h.
Folding eliminate ozone
In industrial production, ozone is often used to disinfect and purify water bodies.
But, as a result of ozone has strong oxidation ability, the remaining ozone in water if not removed can be possible, to influence the next process, therefore, usually the ozone treated water before entering the main technological process must be in water to remove residual ozone.
Ultraviolet light of 254 nm is very effective for destroying residual ozone, which can decompose ozone into oxygen.
Although different systems require different sizes, typically a typical ozone removal system requires about three times as much ultraviolet radiation as a traditional sterilization system.
Folding reduces total organic carbon
In many high-tech and laboratory installations, organic matter can interfere with the production of high purity water.
There are many ways to remove organic matter from water, and more commonly used methods include activated carbon and reverse osmosis.
Shorter wavelength of ultraviolet (UV) light (185 nm) can effectively reduce the amount of total organic carbon (value is the radiator also produces a 254 nm wavelength ultraviolet (UV) light, and therefore can be disinfected at the same time).
Ultraviolet light with shorter wavelengths has more energy and is therefore able to break down organic matter.
The organic reaction process is complicated, and its main principle is to oxidize organic matter into water and carbon dioxide by producing highly oxidized hydrogen and oxygen.
Like the ozone scavenging system, this biodegradable UV system emits three to four times more UV radiation than traditional disinfection systems.
Fold liquid sugar to disinfect
Most food and beverage manufacturers use liquid sugar in large quantities.
Since sugar is easily used by bacteria, it is easy to promote bacterial reproduction.
In addition, liquid sugar is opaque, so it is difficult to disinfect thoroughly.
Ultraviolet light of 254 nanometer wavelengths can be used to sterilize liquid sugar products.
To compensate for the fluid viscosity and the energy loss caused by color, many UV emitters need to be tightly aligned to make up the so-called "membrane" reactor.
The close combination of these radiators can provide the very high UV radiation required so that liquid sugar can be effectively disinfected.
Its UV energy output is about seven to 10 times that of a traditional disinfection system.
Fold degradation of residual chlorine
Chlorination is essential in municipal water treatment and water supply systems.
But in the process of industrial production, in order to avoid harmful effects on products, the removal of residual chlorine in water is often the necessary pretreatment.
The basic method of eliminating residual chlorine has activated carbon bed and chemical treatment.
The drawback of activated carbon is that it needs to be constantly regenerated, and is often encountered with bacteria.
Both 185 and 254 nanometer wavelengths have been shown to effectively destroy the chemical bonds of chlorine and chlorine.
Although great UV energy is needed to play a role, but its advantage is that this method does not need to add any drugs into the water, don't need to store chemicals, easy maintenance, and at the same time and the role of sterilization and removal of organic matter.
Folding surfaces and air disinfection
The use of UV for air disinfection and ultraviolet light for water disinfection has a long history.
Air sterilization equipment has been used in hospitals, clinics and purification rooms for years.
Now, factories, offices and homes are also using air sterilization equipment.
The principle of air disinfection is the same as water disinfection.
Normally, the ultraviolet lamp can be installed in the air pipe, at the front of the coil, or mounted on a shelf fixed to the wall.
When air passes, the microbes in the air are killed and become harmless.
The same is true of surface disinfection.
In the food and beverage industry, the products on the conveyor belt are sterilized by surface sterilization equipment.
Disinfect the folding cooling tower
In order to reduce the cost of killing agents and the harm of chemical treatment to health, the UV system can be installed in the water circulation system of the cooling tower to play the role of sterilization.
If used together with the filter, UV rays can effectively control the growth of microorganisms in cooling towers.
Although the cooling tower still needs to maintain a certain concentration of antibiotics, the application of ultraviolet radiation can greatly reduce its usage.
Country of origin: Jiangsu, China
Voltage: 220V 50Hz, the voltage can be as local demand
Payment term: Unionpay transfer
Delivery date: Negotiable
Packing: export standard
Market: Middle East/ Africa/Asia/South America/Europe/North America
Warranty: 1 year
MOQ: 1 set
Parts of customers:
1.How can I get to your factory?
Our factory is near Shanghai airport. We can meet you at the airport.
2.Where is your factory?
Our factory address: no.5, rongqiang road, xishan district, jiangsu province, China
3.What's your minimum order quantity, could you send me the sample?
Our minimum quantity is one set, because our products are mechanical equipment, which can hardly be sent to you, but we can send you a catalogue and warmly welcome you to visit our company.
remarks：Main Equipments Packages Testing Devices Delivery:
500kg or more