Liaoning medium voltage ultraviolet sterilizer

Description :

　　Background of use of Liaoning medium voltage ultraviolet sterilizer: Ultraviolet disinfection technology is a physical disinfection method with broad-spectrum bactericidal ability, and it is also a disinfection method that does not produce disinfection by-products. At present, ultraviolet disinfection technology has developed into a safe, reliable, efficient and environmentally friendly disinfection technology, which has been widely used in various fields abroad. In China, ultraviolet disinfection technology is increasingly being emphasized and promoted due to its energy-saving and environmentally friendly characteristics, gradually replacing traditional chemical disinfection methods and becoming the mainstream water treatment and purification technology. With the gradual acceptance of ultraviolet disinfection technology, the scope of application of Liaoning medium voltage ultraviolet sterilizers is also constantly expanding, which puts forward more requirements for ultraviolet disinfection systems, not just limited to low-voltage lamps and low-power low flow water purification disinfection. In the market context of such usage requirements, high-power medium voltage ultraviolet disinfection systems have emerged.

　　Principle of medium voltage ultraviolet disinfection equipment: The principle of medium voltage ultraviolet disinfection equipment is basically the same as that of low-pressure ultraviolet disinfection equipment. The main difference lies in the fact that the ultraviolet lamp used belongs to the medium voltage standard. The ultraviolet lamp contains a small amount of mercury (liquid mercury or solid mercury), which appears in a vapor state under light irradiation. When the mercury evaporates, it is bombarded by photoelectrons to produce various wavelengths of ultraviolet light. The wavelength of the emitted ultraviolet light depends on the vacuum pressure inside the lamp. The low-pressure ultraviolet lamp is evacuated to a lower pressure (1-10 Pa) and can emit a single ultraviolet wavelength of 254 nanometers for sterilization. The medium voltage ultraviolet lamp is evacuated to a medium pressure (10-50 Pa) and can emit ultraviolet light with a wide spectrum of 254-265 nanometers. When the ultraviolet light is irradiated to microorganisms, the Liaoning medium voltage ultraviolet sterilizer transfers and accumulates energy, causing the collapse of the microbial cell wall and killing microorganisms. Absorbs over 3600-65000 uw/cm2 When administered, it has a strong destructive power, causing microorganisms to lose their survival and reproductive ability, thus achieving the purpose of disinfection and sterilization. In summary, the principle of ultraviolet sterilization and disinfection is to use the irradiation intensity of the ultraviolet lamp tube, that is, the irradiation intensity emitted by the ultraviolet sterilization lamp is inversely proportional to the distance of the disinfected object being irradiated. The higher the irradiation intensity, the better the disinfection effect. When the irradiation intensity is constant, the longer the irradiation time of the disinfected object being irradiated and the closer it is to the sterilization lamp tube, the better the disinfection effect, and vice versa.

　　In the design of medium voltage ultraviolet disinfection equipment, in addition to the selection of core products, the integration of equipment is very important. The surface temperature of the lamp wall of medium voltage lamps can reach up to 600-800oC, and the selection and configuration of the sleeve have a significant impact on the lifespan and effectiveness of the lamp tube; Due to the high temperature of the lamp tube, extremely high requirements are placed on the sealing design and cooling system of the system; The control system for ballasts and lamp dimming, as well as other control systems, will be crucial for the stable operation of the system. Whether another water treatment and disinfection system can become a reliable sterilization and inactivation system requires professional UV dose calculation and verification. Whether the equipment is equipped with a cleaning system, temperature sensing monitoring, ultraviolet radiation measurement monitoring, PLC integration, and so on. Our company has accumulated considerable experience in the application of medium voltage systems, and has been inspected by the national quality and technical supervision department and issued a hygiene approval for water treatment products. Our technical experts will be able to provide users with good design and selection solutions.

　　1. Our company's medium voltage ultraviolet sterilizer integrates the design length and UV light source parameters of various brands of UV lamps, optimizes the cavity design, and uses CFD analysis. The product's cavity water enters through the light source irradiation area without disturbance, with stable flow rate, extremely fine water resistance, and high sterilization efficiency

　　2. The chamber of the medium voltage ultraviolet sterilizer has two different designs: cross type and straight through type, suitable for use in different industries. Depending on the flow rate and power, the electrical box has a backpack type and a split type. Can be selected according to user requirements

　　3. The medium voltage ultraviolet products use self-developed medium voltage ultraviolet light efficiency control technology, which displays the output power, light intensity monitoring, self-cleaning operation status, operation time, manual/automatic conversion, and light length analysis alarm of the operating lamp through touch screen display

　　4. Remote control module system can be installed to remotely transmit operational data to the monitoring platform and mobile phones via GSM/RRS communication, achieving unmanned operation of the equipment

　　After sales service and commitment:

　　1. The product is accompanied by a certificate of conformity and an appropriate user manual to ensure that users can correctly install and use our company's products.

　　2. Our company guarantees that all products leaving the factory are produced and inspected according to national and industry standards, and any unqualified products will never be released. Ensure strict fulfillment of the three guarantees for fulfilling the product, strictly comply with relevant national regulations on after-sales service for industrial products, and within 12 months from the date of shipment, if the buyer can prove that the product is installed and used correctly in accordance with our company's recommended methods; If it can be confirmed that the product itself has design, material or processing defects, and a written application is submitted to our company, our company will be responsible for free recall and repair of the defective product, or replacement with a brand new product and customer.

　　3. Users have raised quality objections to our company's products, and the company guarantees to provide a resolution within 48 hours of receiving such objections. If on-site solutions are required, ensure the dispatch of professional technical service personnel and ensure that service personnel do not evacuate until quality issues are resolved. Our company will archive every product quality issue and handling result reported by users.

　　4. Under no circumstances shall our company be liable for any labor, material, equipment, engineering, or other related associated costs resulting from the repair or replacement of defective products. Our company's after-sales service commitment for this product can replace other express or implied forms of product quality guarantee, and can be regarded as the buyer's compensation and the seller's responsibility

　　Ultraviolet radiation is used to irradiate bacteria and viruses, and the energy in the ultraviolet spectrum is absorbed by bacterial nucleic acids, causing their nucleic acid structures to be destroyed and lose their ability to replicate and reproduce, thus achieving sterilization effect. It is a residue free disinfection method.

　　In addition to its sterilization effect, medium pressure ultraviolet radiation also has the function of decomposing organic matter, amino acids, urea, trihalomethanes, etc. The "Technical Regulations for Swimming Pool Water Supply and Drainage Engineering CJJ 122-2017" require the use of medium pressure ultraviolet radiation for disinfection of swimming pools and other pools. Medium pressure ultraviolet radiation has been used for swimming pool disinfection for more than ten years, especially in the 2012 London Olympics where all swimming pools were disinfected with medium pressure ultraviolet radiation. More and more swimming pools in China are also using the Guanyu Environmental Protection/Zhonglian Qitong/Xin Guanyu brands;

　　Compared with the conventional ultraviolet sterilizer, the medium voltage ultraviolet sterilizer in Liaoning has a wider wavelength range of output from the lamp tube, which can effectively promote the decomposition of organic matter through the oxidation of light to achieve disinfection and sterilization. In addition, the penetration rate of medium voltage ultraviolet rays in water is relatively high, reaching over 97%, while the penetration rate of conventional single wavelength ultraviolet rays is only about 75%. The higher the penetration rate, the more comprehensive the coverage of water, and the better the sterilization effect.

　　The medium pressure ultraviolet sterilizer is installed at both ends of the water pipe to irradiate and disinfect the flowing water. The medium pressure ultraviolet sterilizer has a small volume and good sterilization efficiency, and can sterilize various bacteria, viruses, cryptospores and other microorganisms. The sterilization rate can reach over 99.9% and will not produce secondary pollution. At present, it has become an important disinfection equipment for water plants, factories, sewage treatment plants and other units.

　　The difference between Liaoning medium voltage ultraviolet sterilizer and low-pressure ultraviolet sterilizer lies in the sterilization intensity. Due to the higher photoelectric conversion rate of low-pressure ultraviolet lamps compared to medium voltage ultraviolet technology, low-pressure ultraviolet technology is often used in some industrial water treatment. Medium pressure ultraviolet radiation has its special advantages for disinfecting swimming pool water.

　　1) Low voltage ultraviolet lamps have high sterilization efficiency at a wavelength of 253.7mm, but only output a single frequency spectrum in a single straight line; The medium voltage ultraviolet lamp has a wide wavelength range and can kill many bacteria. For low load slightly polluted water bodies such as swimming pools, it is sufficient to meet the sterilization requirements

　　2) Low voltage ultraviolet lamps have little effect on degradation; The output wavelength range of medium voltage high-intensity ultraviolet lamps is wide (230-400m), containing wavelengths of 245mm, 297nm, and 340mm required for degradation. Photooxidation can effectively promote the decomposition of other organic compounds. The decomposition wavelengths are in the UVC, UVB, and UVA ranges, so medium voltage ultraviolet radiation has the ability to decompose and combine compounds. The medium pressure ultraviolet technology is far superior to the traditional low-pressure ultraviolet technology in terms of decomposition. The experiment used the same power (1200W) of medium and low-pressure ultraviolet to photodecompose in the swimming pool. The effective decomposition rate of medium pressure ultraviolet (mg/L level) can reach 74%, which is much higher than the degradation effect of low-pressure ultraviolet.

　　3) Effectively improve the ultraviolet penetration rate of swimming pool water quality. Penetration rate is one of the standards for evaluating water quality, and it is not exactly the same as turbidity. Turbidity is a characterization of suspended solids in water and does not represent dissolved substances in water. Ultraviolet radiation can oxidize organic matter in water and also destroy the structure of some substances that can cause water turbidity. Combined with filtration technology, it can improve the penetration rate of water quality. Medium pressure ultraviolet radiation can increase the penetration rate of water quality from 75% to over 97%

　　4) The Effect of Temperature on Sterilization Efficiency

　　The water temperature of a typical swimming pool is 26-28 ℃ or higher, which is higher than the evaluation temperature for the effectiveness of general disinfectants and disinfection methods (in general, tap water and sewage are lower than this temperature). The amount of ultraviolet radiation is affected by temperature, and the efficiency of low-pressure ultraviolet lamps is greatly affected by temperature, while the efficiency of medium pressure ultraviolet lamps is not affected by temperature.

AfterSalesService :

• Liaoning medium voltage ultraviolet sterilizer