EUV water sterilizer

EUV water sterilizer

The principle of work:

The principle of sterilization and sterilization with ultraviolet rays is to use the energy of the high -energy zone of ultraviolet photons to destroy DNA or RNA - structures of various viruses, bacteria and pathogens in water, which, after destruction, lose the ability to produce proteins and multiply, thereby achieving a bactericidal target. The bactericidal process of ultraviolet radiation is a physical process, ultraviolet radiation does not add any substances to the water, does not produce any by -products and is effective, environmentally friendly and safe. Ultraviolet radiation is divided into three ranges: UVA, UVB and UVC. Ultraviolet radiation has a sterilization function. Among them, ultraviolet sterilization of the wavelength of 253.7 Nm is the strongest, the spectral line of the wavelength of 185NM can also decompose organic molecules in water, generate hydroxyl free radicals, oxidize organic compounds to carbon dioxide to achieve the purpose of removal TOC, assessing the quality of the ultraviolet tube mainly depending on the effectiveness of the exit in this range.

The general name of the radiation in an ultraviolet electromagnetic spectrum with a wavelength of 100 to 400 nanometers. It is located outside ultraviolet radiation in the spectrum, therefore it is called ultraviolet light and is an invisible light. According to the classification of ultraviolet ranges CIE (international lighting commission), they can be divided into UVA (320 - 400NM), UVB (280 - 320nm) and UVC (100 - 280nm). The principle of ultraviolet sterilization: when bacteria and viruses in water are exposed to sufficient dose of ultraviolet waves UV - C in the range from 240 to 280 nm, they can destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in bacteria and viruses, bacteria, bacteria. causing the death of vegetative cells and / or regenerative cells, achieving the effect of sterilization. Especially on the waves.

The tail 253.7nm has the strongest bactericidal effect for the outside world. Ultraviolet radiation with a wavelength of less than 240 nm leads to ozone ozone oxygen in air or water. Ozone has a strong oxidative ability and can also play a bactericidal role. In addition, it can decompose organic substances in water. Ultraviolet rays with a wavelength of 185 Nm have the greatest ability to produce ozone. It can also decompose organic molecules in water, produce free hydrogen radicals and oxidize organic compounds in water to CO. ₂ & h ₂ · Achieving the removal effect of TOC.

The principle of ultraviolet sterilization

Sterilization source power - ultraviolet C - Range (UVC)

UV - radiation is divided into four ranges: a / b / c / D. C - the range has a bactericidal effect. Of these, ultraviolet sterilization is the strongest near 254nm.

Advantages of products

1. Effective sterilization

The use of ultraviolet rays to sterilize bacteria and viruses, as a rule, reaches 99.9% in 0.3S - 6 seconds.

2. Effective spectrum of sterilization

Ultraviolet sterilization has the highest spectrum of the spectrum and can effectively kill almost all bacteria and viruses. It can reach a sterilization coefficient of 99.99%.

3. Effective spectrum of sterilization

Традиционные методы дезинфекции, такие как использование хлоридов или хорошего кислорода, сами по себе являются высокотоксичными и легковоспламеняющимися веществами. УФ - системы не представляют такой опасности для безопасности.

4. Low costs, low operating costs for maintenance

Ультрафиолетовое бактерицидное оборудование занимает небольшую площадь, требования к строительству просты, общий объем инвестиций невелик. Эксплуатационные расходы также низкие. На уровне 1000 тонн водоочистной мощности ее стоимость составляет лишь 1 / 2 от стоимости хлорирования.

The principle of work

UV - radiation is a safe, effective and thorough disinfection method; The method of sterilization of ultraviolet rays is the irradiation and destruction of DNA and RNA of bacteria and viruses. Ultraviolet radiation zones (UV - radiation) cause irreversible damage to microorganism DNA molecules, as a result of which they cannot multiply and ultimately die.

Compared to residual chlorine (chloramine), ultraviolet rays are more healthy and have no side effects; The ultraviolet technology of combined chlorine (chlorumine) obtained by chlorine disinfection is the cause of the smell of chlorine in the air in closed pools. Chlohramine also causes pain in the eyes, and allergies to the skin are also the main cause of corrosion of composite structures in covered pools. Ultraviolet rays not only decompose chloramine, but also self -cleaned. No microbe can be immune to ultraviolet radiation, even some pathogens that chlorine cannot kill.

Сократите озон и сделайте его более безопасным! Озон не допускается в питьевой и промышленной воде. Он обрабатывается через эту систему. Озон поглощает ультрафиолетовые лучи длиной волны 254нм и распадается на растворенный кислород.

Environmental Terms: 5 ° C ~ 40 ° C relative humidity: 85% working pressure: 0.4 MPa Source: 220v / 50hz temperature: 5 ° C ~ 60 ° C

Lamp service life: 9000h (standard lamps / high -strength lamps) 13000h (mercury lamps)

A special warning: ultraviolet rays can seriously damage the eyes and skin. It is forbidden to look with the naked eye at the ultraviolet lamps on.

The effectiveness of ultraviolet sterilization

Attention when installing

1. Requirements for the power of 220V / 50Hz, the service life of an ultraviolet lamp is more than 9000h, the sterilizer is made of stainless steel SUS304 or SUS316, the outer surface is mechanically polished or sandblasting.

2. Ultraviolet lamps are very harmful to the human eye and skin during work, so do not look directly or do not stand in the area lit by ultraviolet lamps. If you accidentally received skin and eyes burns, go to the hospital on time. Damage is manifested in pain in the eyes and cleaning the surface of the skin.

3. After receiving the equipment, please open the box on time to check whether the accessories are complete, and the quartz tube of the lamp is not damaged. This should ensure that the equipment installation cycle does not suffer.

4. The equipment should have enough space for installation. On the side of the lamp there should be a distance of at least 1.1 m to facilitate the subsequent removal of the lamp and replacement of accessories.

5. After installing the equipment, you must first turn on boiling water to make sure that the equipment does not flow, and then turn on the power and turn on the device switch. Because of the strong heat transfer of ultraviolet lamps, so it is forbidden to light the equipment first, and then turn on, otherwise it can easily lead to damage to the equipment!

The scope of application

Бактерицидная дезинфекция сырой воды: вторичное водоснабжение в быту, предварительная обработка аквакультуры, переработка пищевых продуктов, сырой воды, фармацевтика, химическая промышленность, производство холодных напитков, животноводство, обработка воды в сельских колодцах;

Sterilization of wastewater: large and medium treatment facilities, laboratory disinfection of water, re -use of water, hospital medical wastewater, purification and disinfection of water in the pool, and so on.

Carefully choose well -known domestic and foreign brands of ultraviolet lamps, providing domestic and imported branded lamps to select customers to ensure the stability of customers during use.

Notes:

1. Equipped with electronic ballast, the service life of which exceeds 9,000 hours.

2. Ultraviolet radiation is measured in a laboratory at a wavelength of 254 nm. In practice, it can change as the environment changes.

The advantages of lamps:

Civil

1. The launch of heating, the long service life, the low frequency of failures.

2. Strong ultraviolet output: the use of quartz glass pipes of high purity, perfect manufacturing technology.

3. A very small attenuation of ultraviolet radiation: ultraviolet radiation decays by only 20-30% during its service life.

4. High reliability and stability: advanced production processes and quality management provide reliability, stability and coordination of ultraviolet lamps at the international level.

5. Эффективность затрат. Поскольку способность ультрафиолетового излучения проникать очень слаба, проникновение ультрафиолетового излучения будет серьезно затруднено, если кварцевая втулка будет содержать недостаточное количество кварца. Выберите кварцевую обсадную колонну, скорость проникновения ультрафиолетового излучения достигает более 90%.

Specification:

External diameter: 23 mm

Inner diameter: 20 mm

wall thickness: 1.5 mm

Length: 900 mm / 1200 mm

Special ballast

Changrators play a decisive role in the life cycle of lamps and control of ultraviolet radiation. Thus, the choice of ballast, which corresponds to the lamp, will increase the stability and productivity of all equipment.

Technical parameters:

● Nominal voltage: power coefficient 230VAC: 2099

● Voltage range: 198 - 242V, input frequency

● Thing: 50 / 60H2, wave peak coefficient: ≤17, efficiency

● Bet: 290%

● maximum body temperature:

● 70 'C launch method: preliminary launch

The effect of temperature on the output of ultraviolet rays

The effectiveness of the ultraviolet output of low -pressure mercury lamps is directly related to the pressure of mercury (saturation), which, in turn, depends on the temperature of the cold side of the lamp. Ultraviolet radiation provides the maximum output efficiency at a temperature of about 40 ° C, as shown in Figure 28. The circulating air has a great effect on the temperature of the pipe wall, and the use of higher voltage can compensate for the cooling effect of the air flow (or lower environmental temperature). Figure 29 shows a comparison of the standard pipes TUV PL - L 36W of the same size and pipes of 60W with a "high output". You can see the results of compensation for the specified power.

Life lamps

The life of a low pressure caused by the release of mercury (TUV) depends on the following factors:

• Electrical size

• current level

• Inert gas

• On - Off Level

• ambient time

• Circuit

The selected ballast must comply with the needs of application. Preliminary electronic ballast is very useful for extending the lamp service life, especially if the frequent shift of the lamp is required. Frequent switches have a great influence on the life of the lamp.

Efficiency factors

1 - 6th -radiation bandwidth (UVT)

An important factor affecting the effectiveness of ultraviolet sterilization is the speed of ultraviolet passing (UVTRANSMISSION) or the absorption of the medium (ABSortance) in the sterilizing medium (water). Ultraviolet radiation speed and environment

Factors such as organic substances dissolved in water, inorganic substances and insoluble suspended solids are affected.

2 - General balanced particles (TSS)

The effect of suspended particles on the bactericidal effect of ultraviolet radiation is also obvious. Weighed particles can absorb and reflect ultraviolet rays, thereby preventing the effects of ultraviolet rays on DNA of bacteria and viruses. Besides.

Weighed particles also accelerate the scale and pollution of quartz casing pipes, which affects the bactericidal effect.

3 - granules

The sizes of particles in water have a greater effect on the bactericidal effect of ultraviolet radiation, since larger suspended particles form shadows and dead points that protect bacteria and viruses. This is usually a way out of the pool.

Water is more convenient for ultraviolet sterilization, and the average size of suspended particles in water should be less than 30 microns.

4 - exposure time

The exposure time is associated with the volume of traffic. UV - systems are usually designed on the basis of peak flow rate. The lower the speed of the current, the longer the effect, the greater the effective dose of the system.

The dose required for ultraviolet disinfection of bacteria and microorganisms (99.9% of the bactericidal effect)

The best conditions for using ultraviolet sterilizers

General norms