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ultraviolet sterilizer
ultraviolet disinfection device for a wide range of uses, has the very high value inwatertreatment, it is through the irradiation of the ultraviolet light, damage andchanges ofmicrobial dna (deoxyribonucleic acid) structure, makethe bacteriadied immediately or can't reproduce, achieve the purpose ofsterilization. the real with the bactericidal effect of uvc ultravioletlight, because ultraviolet c can easily be absorbedby organism dna, especiallyin 253.7nm ultraviolet best. purephysical disinfection methods belong tothe ultraviolet sterilizer, has the advantages of simple and convenient, the broad spectrum and higheffective, no two pollution, easy management and the advantages of automation, with theintroduction of various new design of the ultraviolet lamp, the scope of applicationof ultraviolet sterilization is also expanding.
ultraviolet disinfection equipment suitable for drinking water. referencetodrinking water ultraviolet sterilizer cj/t 204-2000
reference to drinking water health standards gb5749-2006 insteadofgb5749-85
the uv lamp as light source using 253.7nm ultravioletradiation lamp mercury vapor discharge as the main line, used for thedisinfection of drinking waterequipment (referred to as disinfector).
ultraviolet sterilizer has no deadangle, light conditions, low energy consumption,equipment installation anddisassembly is convenient and flexible, no two pollution, ultravioletsterilizer relative chlorine sterilization, he has no needto addchemicals, no two pollution, no mixing equipment, greatly reducingthe equipment operation cost, if drinking water, ultravioletsterilizer safety, not because of drugoverdose harm to humanbody. ultraviolet sterilizer relative ozone sterilizer, hehas smallenergy consumption, no large mixer, no smell of fish, notonly good sense, but also reduce the operation cost.
 the technical requirements
1) the use of environmentalconditions: disinfection should be able to work normally under the following conditions.
(1) water quality
ultraviolet sterilizer picture collection
ultraviolet sterilizer picture collection (7)
haze ≤ 5 degrees
total iron content ≤ 0.3mg/l
chroma ≤ 15 degrees
water temperature ≥ 5 ℃
total coliform ≤ 1000 /l
the total number of bacteria ≤ 2000 /ml
(2) the air environment
environmental temperature ≥ 5 ℃
the maximum relative humidity below 90% (equivalent tothe air in the air 20 ℃± 5 ℃)
(3) power supply
power frequency 50hz ± 2.5 hz
the power supply voltage 220v ± 22v
2) the basic technical requirements
(1) design sterilizer shall comply with gb8988 grid power supply for household and similar general use electronic and relatedequipment safety requirementsrequirements
(2) disinfector should be technical management regulationsof the drawings and technical documents procedures approved by the manufacturing
(3) the same type sterilizer parts shall ensure thattheir interchangeability
(4) disinfection by ultraviolet radiation surface shouldbe polished
(5) the bearing cylinder working pressure shall not be less than0.60mpa, the test pressure shall not be less than 0.90mpa
(6) cylinder or box should setthe diversion plate
(7) a straight tubular quartz ultraviolet low pressure mercurylamp and lampinstallation requirements shall be in accordance withyy/t0160 straight quartzultraviolet lowpressure mercury lamp disinfection.
(8) in the environment have higherrequirements, should be preferred low ozonetube, to reduce the pollution of ozoneon environment
(9) the lamp shall be so arranged that the uvintensity distribution of ultraviolet irradiation on the surface of the uniform
(10) sterilizer shall be provided with the lamp islit, the cumulative time relativeindicator light indicatingor ultraviolet radiation intensity
(11) separated from the application of the quartz glasssleeving and water tube,quartz tube 253.7mm ultraviolet transmittance should begreater than 85%
(12) low voltage electricappliance disinfector used shall conform to the requirements of the corresponding products technology
(13) disinfector should have inlet and outletpipe, drain pipe, a sampling tube. in the sterilizer inconvenienceplaced drainage pipe, also can be in the connecting pipe installationand disinfection device with (14) sterilizers, specificationsandinto the duct diameter should be selected according to table
(15) according to the test requirements of thisstandard, disinfection productswith new lamp, uv irradiationdose measured shall be not less than 12000µ;w s/cm. (should be filled withwater), the normal work of the uv sterilizerirradiation dose was notless than 9000µ; w s/cm.
(16) according to the standard conditions of use, workin rated water disinfection,water bacteriological indicators should be consistent withthe gb5749 drinking water health standards requirements.
(17) disinfector materials shall meet the requirements ofgb/t17219 evaluation of the safety of drinking water distribution equipment and protective materialsstandard. disinfector should use 304l, 316l stainless steel.
(18) the headloss disinfector in disinfection under the rated water should be lessthan 0.005mpa.
3) appearance requirements
(1) the surface of equipment shall besprayed evenly, consistent color, the surface should be no flowmarks, blistering, peeling phenomenon, leakage paint.
(2) equipment appearance is tidy and beautiful, noobvious hammermarks anduneven surface, instrument, switch, indicatorlights, signs should be installed firmly correct.
(3) welding equipment shell and skeleton should bestable, no significant deformation or burn defect.
4 key points of construction, installation)
(1) is not easy to ultraviolet generator installed in the outletpipe close to thewater, to prevent water hammer damage quartz glasstube and tube.
(2) the uv generator should be strictly in accordance with the waterinlet and outlet direction.
(3) the uv generator shouldhave higher ground based architecture, based out of theground should not be less than 100mm.
(4) the ultraviolet generator and its connecting pipesand valves should be firmlyfixed, not to the ultravioletgenerator bear the weight of pipeline and accessories.
(5) the uv generator installation should facilitatethe overhaul and maintenance,all pipe joints shall not use the influence ofwater hygiene materials.
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北京汉光时代科技发展有限公司
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北京市通州区北京市通州区北泡集团产业基地303号