真空脫氣膜MD（課堂PPT）

1、2022-3-101M D2022-3-102lMD的用途lMD的工作原理介紹lMD的使用lMD產(chǎn)品的相關(guān)信息2022-3-103l水中溶解的O2l水中溶解的CO2l水中溶解的N2等其他氣體l水中由O3轉(zhuǎn)化而來(lái)的O2（消毒殺菌尾聲）可除去以下氣體：2022-3-104lHenrys Law DO=H *Po2 液體中所溶解的氣體量跟此氣體在液氣界面上氣體空間的分壓成正比關(guān)系。lDaltons Law Ptotal=PH2o +PN2 + PO2+. 混合氣體的總壓力等于各種氣體分壓的總和。2022-3-105lHenrys Law DOo2= H1 *Po2Po2=H2* PtotallDal

2、tons Law Ptotal=PH2o + PN2 + PO2+Gas stripVacuum2022-3-106Water inletWater outletStrip gasStrip gasWater inletWater outletTo VacuumWater inletWater outletStrip gasABCTo VacuumTo Vacuum目前，一般采用C模式2022-3-107PP材質(zhì)膜壁膜孔0.03um只能通過(guò)各種氣體分子,水分子則不能通過(guò)各種氣體分子高壓N2分子水流方向Strip gasStrip gas & Vacuum水分子2022-3-108202

3、2-3-109200 mm0.03 m Pore2022-3-1010Liquid InletParallel Configuration for FlowLiquid OutletLiquidOutletLiquid InletSeries Configuration for Efficiency2022-3-1011152432022-3-1012VENT/DRAINN2 FEEDPIFIDRAINVAC EXHAUSTPRODUCT WATERSAMPLEPICONTACTORFEED WATERFICHECKVALVECONTACTORPIMD串聯(lián)系統(tǒng)架構(gòu)2022-3-1013Pret

4、reatmentRORO TankUVIon ExchangeDI TankPolisherUVFinal FilterUVVacuum TowerPOUReclaimN2 , 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 Recycl

5、e Back into Loop純水系統(tǒng)中可能使用MD 之POU2022-3-1014PretreatmentNo.2RODI TankUV No.1Ion ExchangeUPW TankPolisher No.2UV No.2Final FilterPOURecycleN2 , O2 RemovalCO2 Removal for Ion Bed Life Extension純水系統(tǒng)中MD使用點(diǎn)Polisher No.12022-3-1015Temperature 20C70809010015253545758085909510015253545100 mm HgCombo50 mm Hg1

6、00 mm HgOne ContactorTwo Contactor in SeriesCombo90 110 130 150 170 19090 110 130 150 170 19050 mm Hg2022-3-1016 4 8 Contactor 10 28 Contactor)ShellsideShellside2022-3-1017l2.5 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 Contacto

7、rl4 x 28-inch ContactorSingle Unit Capacity:5 gpm 30 gpm (1.16.8 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 surface2022-3-101810 gpm (2.30 m3/hr)77F(25C)Inlet O2 Saturated (8.5 ppm) Two