反滲透裝置 | 系統設計注意事項_北京陶氏環?？萍加邢薰?/title> <link rel="shortcut icon" type="image/x-icon" href="../favicon.ico" /> <link type="text/css" rel="stylesheet" href="../static/css/default.css" /> <script type="text/javascript" src="../static/easyui/jquery.min.js"></script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"><button id="imwks"></button><table id="imwks"></table><label id="imwks"></label><source id="imwks"></source><td id="imwks"></td><blockquote id="imwks"></blockquote><tbody id="imwks"></tbody><kbd id="imwks"></kbd><dd id="imwks"></dd><button id="imwks"></button><kbd id="imwks"><u id="imwks"><label id="imwks"></label></u></kbd><legend id="imwks"></legend><source id="imwks"></source><label id="imwks"></label><kbd id="imwks"></kbd><bdo id="imwks"><blockquote id="imwks"><nav id="imwks"></nav></blockquote></bdo><table id="imwks"></table><input 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class="area"> <a href="/">首頁</a>／ <a href="./?id=1">企業新聞</a> </div> </div> <div class="_article area"> <h1 class="_article_title">反滲透裝置 | 系統設計注意事項</h1> <div class="_article_info"> <span>瀏覽：1508</span> <span>時間：2022-01-05 07:55:40</span> </div> <div class="_article_content "><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;"><span style="font-size:18px;">（</span><span style="color:#000000;font-size:18px;">1）反滲透系統的壓力容器應單獨安裝在特制的架子上，壓力容器的兩端必須有足夠的空間，便于安裝和更換膜元件。</span></span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">（2）反滲透系統運行時壓力容器受壓會有不同程度的伸長，所以在固定壓力容器及其管路時，不能限制壓力容器的正常形變。同時壓力容器受壓伸長后，膜組件在系統啟停機或進水流量有變化時可能在壓力容器中來回移動，所以在安裝膜元件時可以用專用墊片固定膜元件，防止竄動導致膜元件損壞。</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">（3）高壓泵在啟動和停止時會產生水力沖擊（水錘），如果直接作用在膜元件上，會造成膜袋粘結線破裂等現象，所以反滲透系統必須設計相應的裝置防止或者降低水錘對膜元件的沖擊。大型反滲透裝置通常采用變頻泵、軟啟動或者電動慢開門（電動蝶閥）來防止水力沖擊。</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">（4）過高的壓力降將導致膜元件沿水流方向伸出，發生望遠鏡現象，或者膜元件玻璃鋼外殼的破裂，造成膜元件的損壞。因此在反滲透系統運行期間，應確保單支膜元件壓力降不超過15psi,單個壓力容器壓力降不超過60psi, 一旦超過請及時對膜元件</span><span style="color:#000000;font-size:18px;">進行相應的清洗。</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;"><br /></span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">（5）反滲透膜元件在任何情況下承受的背壓都不能超過5psi,過高的背壓會使得膜表面的聚酰胺脫鹽層脫落，造成膜元件不可恢復的損傷。膜元件能承受的背壓不超過5psi。</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">（6）當前段的出水壓力遠遠低于下一段系統要求的壓力時，需設置段間增壓泵；當段間產水量嚴重不均時，配水比接近臨界標準時，需選用段間升壓泵，同時也優化前后元件的運行狀態，降低第1段高壓泵的參數。</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">（7）設置產水憋壓的目的是促使段間的產水量分配更均勻，優化前后膜元件的運行狀態。在選用超低壓元件、進水水溫較高或廢水回用等易于出現前后產水量很不均勻的系統中，常常需對最前面一段或幾段產水憋壓。在產品水憋壓設置的過程中，應注意以下幾點：</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">①任何情況下，憋壓后產水壓力最高不得超過濃水壓力值0. 3bar。</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">②啟動時，應確保先升進水壓力，后進行產水憋壓，停機時，“先泄產水憋壓，后降進水壓力”，謹防背壓造成復合層的剝離，破壞膜性能。</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><br /></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, "font-size:15px;text-align:justify;background-color:#00CDFF;"><span style="color:#000000;font-size:18px;">③系統應設置防止背壓破壞的逆止閥和產水壓力泄放通道。</span></p><p style="color:#FFFFFF;font-family:-apple-system, BlinkMacSystemFont, 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