Mei Fung factory direct supply Yuehua YZF10-30 UV disinfection

Guidelines apply to drinking water UV disinfection equipment. Refer to "drinking water UV disinfection" CJ / T 204-2000 to take advantage of a mercury lamp UV lamp mercury vapor discharge within 253.7nm ultraviolet radiation as the main spectral lines for drinking water disinfection equipment (referred to as disinfection device). Disinfection by flow state is divided into: open gravity, pressure type closure. Technical Requirements 1) Environmental conditions: sterilizer should be able to work under the following conditions. Ultraviolet disinfection UVC-AQUAFIRST (1) water turbidity of the water quality of the total iron content ≤5 ≤0.3mg / L color ≤15 degrees water temperature ≥5 ℃ ≤1000 a total coliforms / L total bacteria ≤2000 months / mL (2) ambient air temperature ≥5 ℃ ambient air, the maximum relative humidity ≤90% (equivalent to air 20 ℃ ± 5 ℃) (3) Power supply frequency 50Hz ± 2.5 Hz mains voltage 220V ± 22V 2) the basic technical requirements manufacturing drawings and technical documents disinfection procedures shall be approved by the technical regulations (1) disinfection should be designed to meet the GB 8988 "Safety requirements for power supply of household and similar general-purpose electronic and related equipment" requirement (2) ( 3) the same type of sterilizer should ensure interchangeability of parts and components (4) disinfection by ultraviolet radiation surface should be polished (5) working pressure of cylinder pressure of not less than 0.60MPa, the test pressure shall not be less than 0.90 MPa (6) cylinder or cabinets should set the deflector (7) straight pipe installation requirements shaped quartz ultraviolet low pressure mercury lamp and the lamp shall comply with YY / T0160 "straight tube-shaped quartz low pressure mercury ultraviolet light disinfection." (8) have higher requirements on the environment, should be preferred low ozone tubes, in order to reduce ozone pollution on the environment (9) of the lamp shall be arranged so that a uniform surface by ultraviolet intensity of ultraviolet radiation distribution (10) sterilizer should be provided with lamps lit indication lamp applications spaced quartz glass tube with water, lit a relative indication of the accumulated time indication or ultraviolet radiation intensity (11), quartz tube 253.7mm UV transmittance greater than 85 % (12) sterilizer use of low-voltage electrical products shall comply with the technical requirements (13) should be provided with access to water disinfection, vent pipes, sampling tube. When placed in the sterilizer inconvenience vent pipes can also be installed (14) in connection with the disinfection of the pipeline at the sterilizer equivalent specifications and into the outlet pipe diameter should be chosen according to the table (15) according to the standard of inspection requirements, New equipment sterilizer lamp, ultraviolet radiation dose measured not less than 12000μW? S / cm. (To be filled with water), ultraviolet radiation dose to normal working sterilizer measured not less than 9000μW? S / cm. (16) according to the standard conditions of use, to work at the rated water disinfection, water bacteriological indicators should be consistent with GB5749 "drinking water health standards" requirement. (17) disinfection materials shall comply with GB / T17219 "in drinking water safety equipment and protective materials evaluation criteria" requirement. Disinfection should use 304L, 316L stainless steel. (18) head loss disinfection work at rated disinfection of water should be less than 0.005MPa. 3) appearance requirements (1) surface of the device should be sprayed uniform, consistent color, the surface should be no flow marks, blistering, missing paint, flaking. (2) the device looks neat appearance, no obvious hammer marks and uneven, disk meters, switches, lights, signs should be installed firmly upright. (3) welding equipment shell and skeleton should be firm, without significant deformation or burn defects. 5, the construction, installation points (1) is not easy to close the UV generator mounted on the pump outlet to prevent damage Water hammer quartz glass tubes and lamps. (2) UV generator should be installed in strict accordance with the direction out of the water. (3) UV generator should be the basis of building up the ground, the foundation above the ground not less than 100mm. (4) UV generator and connecting pipes and valves should be firmly fixed, can not bear the weight of the ultraviolet generator pipes and accessories. (5) UV generator installation should be easy disassembly, inspection and maintenance of all piping connections shall not affect the use of water hygiene materials. 6. Implementation of standards 1) product standards "UV disinfection" QB / T 1172-1999 "urban drainage UV disinfection equipment" GB / T 19837-2005 "UV disinfection of drinking water" CJ / T 204-2000 2) Project standard "building water supply and drainage design specifications" GB 50015-2003 "outdoor drainage design specifications" GB 50014-2006 "urban sewage treatment plant emission standards" GB 18918-2002 "urban recycling water quality in urban miscellaneous water" GB / T 18920 -2002 "wastewater reclamation and reuse design specifications (with the provisions described)" GB 50335-2002 "Building Water and Heating Engineering Construction Quality Acceptance" GB 50242-2002