Lanzhou ultraviolet sterilizer manufacturer benefits of environmental protection equipment Co., Ltd. Lanzhou Zhao Xiang 13231166569/0311-89943986/qq1838722340: UV disinfection Lanzhou, Gansu Lanzhou classification and structure and components of UV disinfection of drinking water disinfection by ultraviolet Lanzhou water status into open water Lanzhou gravity and confining pressure UV disinfection of drinking water UV disinfection Lanzhou, Gansu. Currently used in enclosed UV disinfection of drinking water Lanzhou majority. UV disinfection of drinking water Lanzhou closed with a metal cylinder to disinfect utensils tubes and sterilized water enclosed. Enclosed Lanzhou UV disinfection of drinking water cylinder made of stainless steel, closed Lanzhou UV disinfection of drinking water wall do its polished to enhance the ability to UV reflection to enhance the cylinder body ultraviolet radiation intensity. Enclosed Lanzhou UV disinfection of drinking water in the barrel can be fitted with baffles, change the flow of the running, to avoid the water dead. Enclosed Lanzhou UV disinfection of drinking water must have inlet, outlet and drain pipes, inlet flow rate can be set on the indicating instrument, in order to simplify enclosed UV disinfection of drinking water Lanzhou structure, you can also drain pipe and a flow meter installed in the sterilizer connected pipeline. Enclosed UV disinfection of drinking water Lanzhou prominently instructions should have lit the lamp, lit timing instructions or UV intensity indicating instrument. UV disinfection of drinking water Lanzhou is the core component of the UV lamp, the role is to convert electrical energy into light energy ultraviolet. UV disinfection of drinking water Lanzhou lamp is filled with an inert gas and mercury vapor, low-pressure mercury UV lamp shell vapor pressure of 0.8Pa. Lanzhou single lamp UV disinfection of drinking water features a lamp, the lamp is located in the center of the cylinder section. Lanzhou multi-lamp UV disinfection of drinking water in the tube layout principles, is to make drinking water UV sterilizer cylinder Lanzhou section of each point has substantially the same intensity of ultraviolet radiation. Straight-tube low-pressure mercury quartz UV light disinfection implementation of national industry standards YY/T0 160-94. UV disinfection of drinking water Lanzhou lamp quartz tube, transparent purple rate of not less than 92%, the working pressure 1.0MPa, test pressure 1.2MPa. In order to improve drinking water UV disinfection equipment Lanzhou, Gansu's total capacity, can take multiple UV disinfection of drinking water Lanzhou monocular body in series and parallel combinations. Practice has proved that the same radiation dose lighting, two kinds of combinations of sanitizing effect no significant difference. UV disinfection of drinking water Lanzhou product specifications at rated flow rate should reach sterilizing radiation dose necessary. 2 UV disinfection of drinking water Lanzhou main technical characteristics 2.1 UV disinfection of drinking water Lanzhou influent and effluent quality drinking water UV disinfection Lanzhou influent and effluent quality should meet the GB 3838-88 surface water quality requirements, applicable in centralized drinking water source protection areas of water bodies, total coliform value should be less than 10 000 / L. For surface water, drinking water Lanzhou during UV disinfection of drinking water disinfection as before, generally after coagulation, sedimentation, filtration and other treatment. GB5749-85 "drinking water health standards" requirement Lanzhou after UV disinfection of drinking water purification for drinking water sources that the total coliform value should not be greater than 1 000 / L. Lanzhou drinking water UV disinfection is purified treated surface water, city buildings tank or a secondary water supply, can be used as sources of drinking water supplied directly to the water, the water quality should meet the drinking water health standards of the relevant provisions. UV disinfection of drinking water Lanzhou bacteriological indicators of water can take total coliforms less than 1 000 / L, total bacterial count of less than 2 000 / mL, chroma less than 15 degrees, the total iron content of less than 0.3mg / L, turbidity of less than 5 degrees. 2.2 UV disinfection of drinking water Lanzhou Operating conditions Ambient temperature UV disinfection of drinking water Lanzhou radiation intensity UV light, thus affecting disinfection disinfection. Temperature 5 ℃ ~ 40 ℃ range of UV disinfection of drinking water disinfection Lanzhou effect changes with decreasing temperature, UV light output will be reduced below 5 ℃ even cause difficulty in starting the lamp. UV disinfection of drinking water in Lanzhou, the lamp set in a quartz tube, in addition to its role in preventing UV disinfection of drinking water Lanzhou lamp rupture pollute the water, there are also reduced because the water temperature is too low impact on the efficiency of the UV lamp function. Therefore, the drinking water UV disinfection of Lanzhou water temperature and ambient temperature is above 5 ℃. UV disinfection of drinking water Lanzhou work environment relative humidity should be less than 65%, the maximum not more than 90%. High relative humidity, severe deterioration of the electrical components of the operating conditions, and the air, the small droplets increases, block UV intensity of the radiation decreases. Of the grid frequency is 50Hz. When the supply voltage changes, UV disinfection of drinking water Lanzhou radiation intensity UV lamp voltage increases and enhanced UV disinfection of drinking water Lanzhou capacity increased. Lanzhou UV disinfection of drinking water supply voltage should be stabilized at 220V ± 10% range, in which the supply voltage fluctuation range, the sterilizer disinfection capacity will be between 15% to 20% of the variation. 2.3 Lanzhou UV disinfection of drinking water disinfection capability disinfectant Lanzhou UV disinfection of drinking water disinfection capability refers to the case in the nominal amount of water to kill microorganisms in water features. Lanzhou UV disinfection of drinking water disinfection capabilities of its physical expression represents the state of the irradiation dose: radiation dose = radiation intensity X sterilizer effective water volume (L) / sterilizer rated into the water × 3.6 OK UV disinfection of drinking water disinfection Lanzhou capacity core issue is how to determine the radiation dose. Killing microbes require different type of irradiation dose, and the microorganism is present in a wide variety of water. Selected UV disinfection of drinking water Lanzhou irradiation dose is too high will waste unnecessary energy, too low and reach the purpose of disinfection. Disinfection of water via the water should be focused on killing bacterial disease, generally considered Lanzhou UV disinfection of drinking water can be provided not less than the minimum irradiation dose 9 000μW / (cm2 · s), factory should be greater than 12 000μW / (cm2 · s). In Lanzhou, Gansu UV disinfection of drinking water, the UV radiation intensity of each point is different. UV lamp emitted through the quartz tube cause some attenuation of the intensity passing through the water layer with the water depth increases. UV disinfection of drinking water in Lanzhou, Gansu how only the case of lamps, ultraviolet radiation within the cylinder cross-section intensity distribution is more complex calculations to ensure that each point strength is broadly consistent with the structural design of the primary problem. UV disinfection of drinking water Lanzhou effective use of the process, increasing the radiation dose is reduced over time, mainly because of UV disinfection of drinking water Lanzhou lamp radiation intensity changes, Lanzhou, Gansu UV disinfection of drinking water tube the body surface and the quartz sleeve fouling caused by ultraviolet reflectivity and transparency purple is also an important reason for lower. UV disinfection of drinking water Lanzhou effective usage time of the lamp is its radiation intensity from the factory standard value dropped by 30% cumulative time, Lanzhou, Gansu drinking water UV disinfection lamp life should be valid up to 13000h. UV disinfection of drinking water Lanzhou specified by the manufacturer in proximity useful life, should strengthen the monitoring of water quality, timely replacement of failed lamps. In actual operation, where necessary, the use of the standard value of the lamp failure, appropriate reduction of Lanzhou UV disinfection of drinking water into the water to ensure the necessary radiation dose, you can still obtain satisfactory water quality. 2.4 microorganisms by ultraviolet light irradiation resurrection in Lanzhou, Gansu UV disinfection of drinking water, a variety of different microorganisms are as ultraviolet radiation damage and even death. However, all of any biological ability to repair damage to a certain microbial no exception. Microbial UV damage can be reversed by visible light is called resurrection, effective 330nm ~ 480nm wavelength range includes the visible and near UV. Repair of microbial species and due to hit by ultraviolet extent varies. Some lack the enzyme microorganism matt light resurrection resurrection capability. UV fluence increases, photoreactivation rate decreased when the dose reaches 60 000μW/cm2, the E. coli photoreactivation disappear. Photoreactivation mechanisms are: the action of the enzyme photoreactivation, connected together can be reversed photoproduct formation of thymine dimers and monomers depolymerization, the DNA to restore normal function and structure of the DNA replication at the site of injury ignored and bypassed to achieve cutting repair and recombination repair. In order to avoid the phenomenon of photoreactivation, UV disinfection of drinking water Lanzhou should guarantee a certain dose of ultraviolet irradiation, sterilization should be installed in the tank outlet pipe, after disinfection of the water-box, to avoid prolonged contact with the light. 3 UV disinfection Lanzhou Lanzhou Monitoring System 3.1 UV sterilizer lamp UV radiation intensity Lanzhou ultraviolet radiation intensity ultraviolet disinfection with ultraviolet radiation intensity was determined by measuring, the instrument shall be approved by the national legal units calibrated and the calibration validity period. When the lamp should be measured at the horizontal position, the instrument receiving the probe in the middle of the lamp surface normals at 1m. Ambient temperature of 25 ℃ ± 3%, relative humidity not exceeding 65%, the stability of the discharge tube before measurement time is not less than 10min, electrical measuring instrument accuracy is not less than 0.5, ballasts comply with GB2313 requirements, supply voltage 220V ± 2%, 50Hz. 3.2 Lanzhou UV sterilizer sterilizer sterilizer irradiance irradiance measured using the same instrumentation and measurement conditions 4.1. Instrument sterilizer test probe is placed holes, the distance from the surface is less than 5cm. The measured radiation intensity and the nominal flow of water residence time in the sterilizer is the radiation dose of the product. 3.3 Lanzhou UV sterilizer for water disinfection monitoring of natural water disinfection should meet the requirements. Sterilizer lamp fully open. In the case of nominal water disinfection, but also water quality should meet the total bacterial count is less than 100 / mL, total coliform count is less than 3 / L. Water testing shall conform to "drinking water standards test" (GB5750). 3.4 Lanzhou artificial UV disinfection disinfection detect contamination indicator bacteria using Escherichia coli 8099. Will be viable count of bacteria, with dechlorinated tap water dubbed 1 000cfu / L of water contamination do disinfection test, the number of total coliforms in water is less than 3 / L. 4 Lanzhou UV sterilizer sterilizer operation and management of the operation and management is not complicated. Usually should be noted whether all sterilizer lamp lit, the power supply voltage is normal, the inlet and outlet is unobstructed. Regular water quality monitoring, the tube should be increased monitoring frequency near the end validity, timeliness replace the lamp failure. Every three months on the quartz glass tube, the tube, the tube wall sterilizer cleaned once, first scrub with gauze dipped in alcohol, and then wipe with a soft cloth, clean and working gloves should be worn to prevent hand oil contamination, affecting ultraviolet transmittance and reflectivity. This information from the ultraviolet disinfection Lanzhou, Gansu Lanzhou Environmental Protection Equipment Co., Ltd. to publish Zeppelin, have business please contact Environmental Protection Equipment Co., Ltd. Lanzhou Zeppelin. ?