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點擊次數(shù)：1104</div> <div id="lxr09ur" class="NyNewsdetail_con"> <p><span style="font-family:宋體"> 所有的膜系統(tǒng)在停機保存前應(yīng)進行一次化學(xué)清洗，當(dāng)了解到膜元件（</span><strong>RO</strong><strong><span style="font-family:宋體">反滲透膜</span></strong><span style="font-family:宋體">）已經(jīng)存在污染時，先清洗后保存就更為重要。典型的清洗順序如下：以</span>pH=11<span style="font-family:宋體">的溫和堿性清洗液清洗</span>2<span style="font-family:宋體">小時，然后進行殺菌和短時酸洗。如果原水中不含結(jié)垢和金屬氫氧化物成份，可以不進行酸性清洗，具體程序請參閱</span><<<span style="font-family:宋體">系統(tǒng)清洗與消毒</span>>><span style="font-family:宋體">。</span></p><p><span style="font-family:宋體"> 清洗和殺菌之后，按如下步驟在</span>10<span style="font-family:宋體">小時之內(nèi)進行保存：</span></p><p> 1) <span style="font-family:宋體">趕走壓力容器內(nèi)的空氣，將元件*浸泡在</span>1~1.5%(wt) <span style="font-family:宋體">亞硫酸氫鈉保護溶液中。為使系統(tǒng)內(nèi)的殘留空氣少，應(yīng)采用循環(huán)溢流方式循環(huán)亞硫酸氫鈉保護液，使高壓力容器開口處產(chǎn)生亞硫酸氫鈉保護液的溢流。</span></p><p> 2) <span style="font-family:宋體">關(guān)閉所有閥門，使系統(tǒng)隔絕空氣。否則，空氣將會氧化亞硫酸氫鈉使保護液失效。</span></p><p> 3) <span style="font-family:宋體">每周檢查一次保護液的</span>pH<span style="font-family:宋體">（</span><strong>PH</strong><strong><span style="font-family:宋體">儀表</span></strong><span style="font-family:宋體">）值，當(dāng)</span>pH<span style="font-family:宋體">低于</span>3<span style="font-family:宋體">時，更換保護液；</span></p><p> 4) <span style="font-family:宋體">至少每月更換一次保護液。</span></p><p><span style="font-family:宋體"> 在停機保護期間，系統(tǒng)必須處于不結(jié)冰狀態(tài)，系統(tǒng)環(huán)境溫度不得超過</span>4<span style="font-family:宋體">5</span><span style="font-family:宋體">℃</span> (11<span style="font-family:宋體">3</span><span style="font-family:宋體">℉</span> )<span style="font-family:宋體">。低溫條件有利于停機保護。</span></p> </div> <div id="lxr09ur" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/szhcy-Article-1951488/">總磷在線分析儀的測量原理</a></li> <li>下一篇：<a href="/szhcy-Article-1950703/">總磷在線分析儀概述</a></li> </ul> </div> </div>   <div id="lxr09ur" class="foot_box"> <div id="lxr09ur" class="foot_t"> <div id="lxr09ur" class="w1200"> <a href="/">網(wǎng)站首頁</a>　|　<a 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