Ultraviolet technologyIt is based on modern epidemiology, medicine and photodynamics, and uses specially planned high power, high intensity and long service lifeUVCThe ultraviolet light of the wavelength band shines on the flowing water, directly killing various viruses, parasites, algae and other pathogens in the water. Ultraviolet rays of the appropriate wavelength can damage the cells of microorganismsDNA(Deoxyribonucleic acid) orRNAThe molecular structure of (ribonucleic acid) causes the death of growth cells and/or regenerative cells, achieving the desired effect.

　　Ultraviolet deviceBoth the inside and outside of the main body are adopted304Lor316LMade of stainless steel, the main body is polished both inside and out to enhance the ultraviolet irradiance, ensuring that the object will not have any problems during the process.

　　Both the inner and outer parts of the ultraviolet device are adopted304Lor316LMade of stainless steel, the main body is polished both inside and out to enhance the ultraviolet irradiance, ensuring that the object will not have any problems during the process.

　　The principle of ultraviolet rays,It utilizes ultraviolet light to destroy various viruses and other pathogenic organisms in water bodiesDNAUltraviolet rays penetrate the cell membranes and nuclei of microorganisms, breaking the molecular bonds of nucleic acids, causing them to lose their replication ability or activity and die. The ultraviolet band is between200～300nmBetween them, among which253.7nmStrong band capability. The ultraviolet device utilizes the irradiation intensity of the ultraviolet lamp tube, that is, the irradiation intensity emitted by the ultraviolet lamp, which is inversely proportional to the distance of the illuminated object. When the irradiation intensity is constant, the longer the illuminated object stays and the closer it is to the lamp tube, the better the effect will be; conversely, it will be worse.

I.Features of use

　　1. It can quickly and effectively kill various microorganisms such as viruses.

　　2. Through photolysis, chlorides in water can be effectively degraded.

　　3. Simple to operate and convenient to maintain. It occupies a small area and has a large water treatment capacity.

　　4. Uniform water flow, no dead corners, good light transmission conditions, thorough, low energy consumption, and flexible and convenient installation

　　5. It is pollution-free, environmentally friendly and will not cause toxic or side effects.

　　6. Low investment cost, low operating expenses, and convenient equipment installation.

　　7. The inner wall treatment process designed based on optical principles enables the cavity to maximize the utilization of ultraviolet rays, significantly enhancing the effect

　　8The main material is made of stainless steel, eliminating the issue of metal ion contamination. The product structure is a closed container quartz sleeve type, equipped with an electrical control device inside

Ii.Application scope

　　Ultraviolet devices are widely used in industrial and mining enterprises, residents' lives, restaurants and hotels, government agencies and schools. Field forces, processingThe pharmaceutical industry,Preparation of high-purity waterFor public places or direct useDrinking waterThe leisure tourism industry and beverages or other industries where residual chlorine is not allowed in the water.

　　1Water for Marine and freshwater breeding and aquaculture (fish, eels, shrimps, shellfish, etc.).

　　2Processing industrial water bodies, including water equipment for juice, milk, beverages, beer, edible oil and various canned foods, cold drink products, etc.

　　3Wastewater from hospitals, various laboratories and high-content pathogenic organisms.

　　4Domestic water supply, including residential communities, office buildings, waterworks, hotels and restaurants, etc.

　　5Cooling water for biochemical pharmaceuticals and cosmetic production.

　　6Water for swimming pools and water sports facilities.

Iii.The nature of technology

　　The effect of ultraviolet technology on viruses and other pathogenic organisms has been recognized worldwide.Ultraviolet raysThis process has advantages that other processes cannot match and overcomes the shortcomings of existing traditional technologies. Many European countries as well as Canada and the United States in North America have respectively revised their environmental legislation in the 1990s, regarding wastewater treatment andDrinking waterIt is recommended to adoptUltraviolet technology. Its properties are as follows:

　　rate

　　Ultraviolet technology has an efficiency that no other technology can match. Efficiency Accessible99％－99.9％. table1List the time it generally takes for ultraviolet technology to deal with several common viruses１Within seconds. However, traditional chemical methods such as chlorine and ozone generally require to achieve the ultraviolet effect20Minutes１An hour's time.

　　Broad-spectrum property

　　Among all the current technologies, ultraviolet technology has the highest broad-spectrum performance. It can kill almost all viruses with high efficiency. And it can effectively kill some parasites that are extremely harmful to humans and cannot be effectively killed by chlorine or ozone. table1Ultraviolet rays can also be seenCThe broad-spectrum nature of water equipment.

　　No secondary pollution

　　Since ultraviolet technology can be controlled to merely be and no chemical agents are added, it will not cause secondary pollution to water bodies and the surrounding environment. It does not change any components in the water. For chlorine, the organic chlorine it generates with organic matter in water has been widely recognized as carcinogenic to the human body. Moreover, the chlorine compounds contained in water can have a counterproductive effect in some cases, causing harm to aquatic organisms and the water environment. The ozone method also has similar problems. A large amount of unpleasant ozone that has not dissolved in water volatilizes into the air, which is harmful to the physical and mental health of nearby workers.

Iv. Comparison between Ultraviolet Technology and Traditional Technology

　　Ultraviolet technology, compared with traditional technology, overcomes the shortcomings of the existing traditional technology. During the process, no chemical substances are added, and no harmful substances are produced or left in the water body. The operation is reliable, and the equipment and maintenance are simple. Especially, the investment and maintenance costs are low, and the effect is excellent.

V.Ultraviolet lamp tube

　　The ultraviolet rays applied areCThe wavelength range of ultraviolet rays is200-275nrnThe band with strong effects is250-270nrnThe ultraviolet light source used can generate ultraviolet lamps with irradiance values meeting national standards.

　　When preparing ultraviolet lamps, high-grade quartz glass tubes should be selected to achieve satisfactory ultraviolet irradiation intensity.

　　Ultraviolet lamps can be used with materials that have a high coefficient of ultraviolet reflection(Such as polished aluminum plates)The fabricated reflector.

　　The ultraviolet lamp required to be used has a voltage of220VThe relative humidity of the environment is60%The temperature is20℃At that time, it is radioactive253.7nmThe intensity of ultraviolet rays shall not be lower than7ouW/cm2(Ordinary30WThe straight-tube ultraviolet lamp is at a distance from the lamp tube1The measurement is conducted at the meter level, and the special ultraviolet lamp is used for the measurement at the usage distance. The ultraviolet intensity meter used has been calibrated.)

　　During the use of ultraviolet lamps, their irradiance gradually decreases. Therefore, the intensity of ultraviolet rays should be frequently measured. Once it drops below the required intensity, It should be replaced in time.

　　The service life of ultraviolet lamps is reduced from the intensity of new lamps to70Uw/cm2The time(Power≥30w)The lamp, or reduced to the intensity of the original new lamp70%(Power<30w＝The time should be no less than1000h.

　　The aging of the ultraviolet lamp tube will cause the lamp to lose its luster30%~50%The luminous intensity of it diminishes rapidly in the short-wave band during aging. To ensure the power, usually when the practical operation time of the lamp tube reaches the nominal service life75%It should be replaced when necessary.

SixInstructions for the Use of Ultraviolet Rays

　　The ultraviolet device must not be frequently started, especially within a short period of time, to ensure the lifespan of the ultraviolet lamp tube.

　　Regular cleaning of ultraviolet devices: Depending on the water quality, the ultraviolet lamp tubes and quartz glass sleeves need to be cleaned regularly. Use alcohol cotton balls or gauze to wipe the lamp tubes, remove the dirt on the quartz glass sleeves and wipe them clean to avoid affecting the ultraviolet transmittance and thus the effect.

　　When replacing the lamp tube, first unplug the power socket of the lamp tube, pull out the lamp tube, then carefully insert the new lamp tube that has been cleaned into the device, install the sealing ring, check for any leakage, and then plug in the power. Be careful not to touch the quartz glass of the new lamp tube with your fingers, otherwise the effect will be affected due to stains.

　　Preventing ultraviolet radiation: Ultraviolet rays have strong destructive power and can also cause certain harm to the human body. When turning on the light, avoid direct exposure to the human body. If necessary, use protective glasses. Do not look directly at the light source with your eyes to prevent burning the eye membrane.

Vii.Warm reminder

　　Ultraviolet drinking water processors have a powerful destructive effect. The part of the human body that is prone to injury from ultraviolet lamps is the cornea of the eye. Therefore, at no time should one look directly at the lit tube of the ultraviolet lamp to avoid injury. If it is necessary to look at the light from the ultraviolet lamp, ordinary glass should be used(Wear glasses)Or translucent plastic sheets can be used as protective face masks.

　　Once injured, there is no need to panic. Facial burns will heal on their own after a few days when the epidermis peels off. Eye injuries can cause tearing and stinging, and it takes about three to four days to heal. In any case As soon as you are exposed to ultraviolet rays, it is still recommended that you seek medical attention immediately.