ro反滲透系統(tǒng)技術(shù)培訓(參考版)
2025-01-13 14:51本頁面
【正文】 Impact 位置 Location of Fouling in RO plants Fouling Where does it occur first Scaling/silica Last membranes in last stage Metal oxides First membranes of first stage Colloids First membranes of first stage Organic First membranes of first stage Biofouling (rapid ) First membranes of first stage (slow) Throughout the whole installation 根據(jù)對運行的影響識別污染 Identifying fouling by impact on performance Fouling Normalized Flux Pressure Drop Salt Passage Where Scaling ? ? End Metal oxides ? ? ? Front Colloids/silica ? Front/End Organic ? ? Front Biofouling ? ? Front 使用運行變量 Using the Performance Variables 清潔 RO系統(tǒng)的時間： Time to clean the RO system when: ?降低 1015%的正?；鬂B透水的流速（運行的前200個小時后） 1015% decrease in normalized permeate flowrate (after first 200 hours of operation), or ?降低 12%的 抗鹽 率 12% decrease in percent salt rejection, or ?提高 1015%的壓差 1015% increase in differential pressure 正確的清潔維護 Proper Cleaning Maintenance 正常化滲 透水流速 Normalized Permeate Flowrate Time 當下降 1015%后清潔 Cleaning after 1015% decline 下降 1015%后清潔 最優(yōu)化 RO運行性能 Cleaning after a 1015% Decline maximizes RO performance 正?；瘽B 透水流速 Normalized Permeate Flowrate Time 不正確的清潔維護 當下降 15%后清潔 Cleaning after 15% decline 等太久再清潔 ,降低RO運行性能 Waiting too long to clean reduces RO performance CleaningInPlace (CIP) Skid LL P P 清洗罐 Cleaning Tank 加熱器Heater P 壓力容器2:1 Pressure Vessels 滲透水Permeate 濃鹽水 Concentrate Brine 進水Feed 筒式過濾器Cartridge Filter (5 or 10 micron) 再流通 Recirculation 采樣 Sample 最佳膜清潔作法 Membrane Cleaning Best Practice ? 一步一步 Stage by Stage ? 正確的化學品使用方案 Right Chemical Program ? 充足的流速 Sufficient Flow Rate ? 清潔時間 Cleaning Duration ? 重開始運行時的問題 Problems when back to the service. 維護 RO的益處 Benefits of Maintaining an RO ?降低運行成本 Reduced operating costs ?降低維護費用 Reduced maintenance costs ?縮短停工期 Reduced downtime ?延長膜壽命 Extended membrane life ?提高水質(zhì)和產(chǎn)量 Improved water quality and output 設(shè)計 RO系統(tǒng) Designing a RO System ? 我需要多少滲透水產(chǎn)量 How much permeate production do I need ? 我需要怎樣的水質(zhì) What water quality do I need ? 是否對濃水有任何需要 Is there any use for the concentrate ? 監(jiān)測控制裝 Monitoring and control packages ? 我需要多少 train How many trains do I need ? 進水溫度 ,變化 ,熱回收如何 What is the feedwater temperature, variation, heat recovery ? 進水質(zhì)量如何 What is the feedwater quality 預(yù)處理 Pretreatment – 過濾 Filtration ?重力 /壓力 Gravity/pr
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