真空脱气膜MD.ppt

2024/8/211Membrane DegasifyIntroductionfor Gas TransferExtra-Flow Membrane Contactor TechnologyExtra-Flow Membrane Contactor TechnologyM D2024/8/212概要lMD的用途lMD的工作原理介绍lMD的使用lMD产品的相关信息2024/8/213MD的用途l水中溶解的O2l水中溶解的CO2l水中溶解的N2等其他气体l水中由O3转化而来的O2（消毒杀菌尾声）可除去以下气体：2024/8/214MD的工作原理lHenry’s Law DO=H *Po2 液体中所溶解的气体量跟此气体在液气界面上气体空间的分压成正比关系lDalton’s Law Ptotal=PH2o +PN2 + PO2+………. 混合气体的总压力等于各种气体分压的总和2024/8/215Henry&Dalton定律的运用lHenry’s Law DOo2= H1 *Po2Po2=H2* PtotallDalton’s Law Ptotal=PH2o + PN2 + PO2+……Gas stripVacuum2024/8/216MD操作模式的发展Water inletWater outletStrip gasStrip gasWater inletWater outletTo VacuumWater inletWater outletStrip gasABCTo VacuumTo Vacuum目前，一般采用C模式2024/8/217MD工作原理剖析图PP材质膜壁膜孔0.03um只能通过各种气体分子,水分子则不能通过各种气体分子高压N2分子水流方向Strip gasStrip gas & Vacuum水分子2024/8/218MD的运转模型2024/8/219除气膜的制作除气膜的制作200 µm300 300 µm0.03 µm Pore2024/8/2110MD的使用模式设计Liquid InletParallel Configuration for FlowLiquid OutletLiquidOutletLiquid InletSeries Configuration for Efficiency2024/8/2111GSMC ＵPW系统一段MD设计模式进水进水15出水出水进０进０. .７７Mp NMp N2 2243共五组并联，每组２个串联2024/8/2112VENT/DRAINN2 FEEDPIFIDRAINVAC EXHAUSTPRODUCT WATERSAMPLEPICONTACTORFEED WATERFICHECKVALVECONTACTORPIMD串联系统架构2024/8/2113PretreatmentRORO TankUVIon ExchangeDI TankPolisherUVFinal FilterUVVacuum TowerPOUReclaimLiqui-CelLiqui-CelLiqui-CelLiqui-CelLiqui-CelLiqui-CelLiqui-CelLiqui-CelLiqui-CelLiqui-CelLiqui-CelLiqui-CelN2 , O2 RemovalTotal Gas Control and Final Polishing of O2CO2 Removal for Ion Bed Life ExtensionProcess O2 Removal. Hybrid or Stand Alone SystemExcess O2 Removal Created from O3 ConversionO2 and CO2 Removal to Recycle Back into Loop纯水系统中可能使用MD 之POU2024/8/2114PretreatmentNo.2RODI TankUV No.1Ion ExchangeUPW TankPolisher No.2UV No.2Final FilterPOURecycleLiqui-CelLiqui-CelLiqui-CelLiqui-CelN2 , O2 RemovalCO2 Removal for Ion Bed Life Extension纯水系统中MD使用点Polisher No.12024/8/2115MD 之性能曲线 Water Flow Rate (mWater Flow Rate (m3 3/hr)/hr) Oxygen Removal (%)Oxygen Removal (%)Temperature 20ºCOxygen Removal (%)Oxygen Removal (%)70809010015253545758085909510015253545100 mm HgCombo50 mm Hg100 mm HgOne ContactorTwo Contactor in SeriesCombo90 110 130 150 170 19090 110 130 150 170 19050 mm Hg Water Flow Rate (gpm)Water Flow Rate (gpm) 2024/8/2116压降曲线： 0 20 40 60 800 20 40 60 80 100 110100 110 0 02 24 46 68 810101212141416160 0 5 5 1010 15 15 2020 25 253030Water Flow RateWater Flow Rate (gal/min)(gal/min).25.25. .5050.75.751 1 Water Flow Rate (liter/min)Water Flow Rate (liter/min) 4 8 Contactor 10 28 ContactorWater Flow Rate (gal/minWater Flow Rate (gal/min)Water Flow Rate (mWater Flow Rate (m3 3/h)/h)ShellsidePressure Drop (psig)Pressure Drop (psig)Pressure Drop (psig)Pressure Drop (psig)0 02 24 46 68 85050100100150150200200250250 15 152525353545455555ShellsidePressure Drop (psig)Pressure Drop (psig)2024/8/2117产品系列l2.5 x 8-inch ContactorSingle Unit Capacity:0.5 gpm – 3 gpm (0.1 – 0.7 m3/h)Membrane Area: 15.1 ft2 (1.4 m2) All Polyolefin Contactorl4 x 28-inch ContactorSingle Unit Capacity:5 gpm – 30 gpm (1.1–6.8 m3/h)Membrane Area: 210 ft2 (19.5 m2)Vessel: Polypropylene, Stainless Steel or PVDFl10 x 28 ContactorSingle Unit Capacity: 44 gpm – 210 gpm (10 – 47.7 m3/h)Membrane Area: 1400 ft2 (130 m2)Vessel: 316 L Stainless Steel or Plastic with PVDF inner surface2024/8/2118AT&T Ultrapure Water Deoxygenation Systemn nSematech SponsoredSematech SponsoredDesign Basis:Design Basis:10 gpm (2.30 m3/hr)77°F(25°C)Inlet O2 Saturated (8.5 ppm) System Design:System Design:Two 4×28 Contactors in SeriesN2 Sweep – 1.0 scfm (1.6 m3/hr) per ContactorOutlet Achieved:Outlet Achieved:< 15 ppb Dissolved O22024/8/2119THE ENDMD Introduction。