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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">預處理設備介紹（下）</h1> <div class="_article_info"> <span>瀏覽：1292</span> <span>時間：2021-11-05 06:27:44</span> </div> <div class="_article_content "><p><br /></p><div style="text-align:center;"><span style="font-size:18px;">軟水器</span></div><span style="font-size:18px;">軟水器通過離子交換過程來降低硬度，其所采用的樹脂為鈉型的陽離子交換樹脂。</span><br /><br /><br /><div style="text-align:center;"><span style="font-size:18px;">在線加藥</span></div><span style="font-size:18px;">反滲透預處理根據原水水源不同常常用到加藥裝置，最常用的有絮凝劑投加裝置、殺菌劑投加裝置、還原劑投加裝置及阻垢劑投加裝置。</span><br /><br /><span style="font-size:18px;">投加裝置主要由溶解箱、攪拌器、計量泵、計量箱、液位顯示計等組成。</span><br /><br /><span style="font-size:18px;">藥劑注入點的位置一般選在泵的入口等混合效果較好的地方。需投加多種藥劑時，注入點間隔最小應在一米以上。為了加強藥劑的混合，可在加藥點后設置混合器。</span><br /><br /><span style="font-size:18px;">a.絮凝劑投加裝置：</span><br /><span style="font-size:18px;">原水中除含有泥沙外，通常還有顆粒很細的塵土、腐殖質、淀粉、纖維素及菌類、藻類等微生物。這些雜質與水形成溶膠狀態的膠體微粒，由于布朗運動和靜電排拆力而呈現沉降穩定性和聚合穩定性，通常不能利用重力自然沉降的方法除去。因此必須添加絮凝劑，以破壞溶膠的穩定性，使細小的膠體微粒凝聚再絮凝成較大的顆粒而沉淀。</span><br /><br /><span style="font-size:18px;">b.殺菌劑投加裝置：</span><br /><span style="font-size:18px;">細菌和微生物主要是隨著原水進入系統的。進入反滲透系統的細菌和微生物會在膜元件及管道內繁殖生長，形成生物黏泥。由于生物黏泥的附著力較大，一旦發生生物污染就較難進行清洗。生物污染會嚴重影響膜的性能，其表現特征主要為水通量逐漸下降，運行壓差逐漸增加；細菌和微生物的侵蝕會引起膜脫鹽率的下降。</span><br /><br /><span style="font-size:18px;">c.還原劑投加裝置：</span><br /><span style="font-size:18px;">當原水中加入殺菌劑時，水中將會有余氯，脫除余氯的方法有活性炭吸附及加入還原劑NaHSOs。NaHSO,則按以下反應進行脫氯。</span><br /><br /><span style="font-size:18px;">d.阻垢劑投加裝置：</span><br /><p><span style="font-size:18px;">對于苦咸水的反滲透系統中，需要考慮濃水中的結垢傾向；特殊情況下, 還需考慮其他等結垢傾向。防止這些結垢的方法，通常是在進水中加人阻垢劑。</span></p><p style="text-align:center;"><span style="font-size:18px;"><img src="http://static.bjtshb.com/static/attached/image/20211105/20211105134805_78329.jpg" alt="" /><br /></span></p><br /><div style="text-align:center;"><span style="font-size:18px;">精密過濾器（微濾）</span></div><span style="font-size:18px;">又常稱為保安過濾器，常作為對反滲透（納濾）系統的最后一過濾裝置。</span><br /><br /><span style="font-size:18px;">精密過濾器采用成型濾材，如濾布、濾網、濾片、濾膜、濾芯，根據不同的濾材過濾精度來劃分精密過濾器的過濾等級，一般為0.01?lum；5?20um；20-100 um；</span><br /><br /><span style="font-size:18px;">精密過濾器常設置在壓力過濾器之后，以除去濁度為0.4NTU以下的細小顆粒，來滿足后續工序對進水的要求。有時也設置在整個水處理系統末端，防止細小微料成入成品水中。</span><br /><br /><span style="font-size:18px;">精密過濾器的濾材（濾芯）是消耗性材料，當工作壓差達到0. IMpa,需要更換。</span><br /><br /><br /><div style="text-align:center;"><span style="font-size:18px;">超濾</span></div><span style="font-size:18px;">超濾膜可去除水中的微粒、膠體、蛋白質、微生物污染物及大分子有機物，而透過所有溶鹽及較小的分子。大多數超濾膜可分離相對分子質量介于1000?100000之間的物質。透膜壓一般為1?7bar（15?lOOpsi）。</span><br /><br /><span style="font-size:18px;">超濾用在反滲透預處理時，可以減少反滲透清洗次數，降低維護費用，延長反滲透膜元件的壽命。地下水經超濾后出水可達到SDI<1</span><br /><br /><span style="font-size:18px;">超濾膜組件有管式、中空纖維式、平板式、卷式四種型式，以中空纖維式最為常用。</span><br /><br /><span style="font-size:18px;">中空纖維超濾膜組件可分為內壓式和外壓式。內壓型膜組件，原液自膜內腔注入，超濾液自中空纖維膜外側流出；外壓型膜組件，原液在膜外側流動，超濾液則自中空纖維內腔中流出。</span><p><br /></p><div><br /></div></div> </div> <div class="_footer"> <h2 class="area unit">北京陶氏環?？萍加邢薰?/h2> <div class="area"> <ul> <li><a href="/" class="home">首頁</a> </li> <li><a href="/about" class="current">關于我們</a> </li> <li><a href="/news" class="current">新聞資訊</a> </li> <li><a href="/goods" class="current">產品世界</a> </li> </ul> <ul> <li><a href="/plan" class="current">解決方案</a> </li> <li><a href="/hr" class="current">招賢納士</a> </li> <li><a href="/cooperation" class="current">發展前景</a> </li> <li><a href="/contact" class="current">聯系我們</a> </li> </ul> <div class="contact"> <a href="tel:010-56940160" class="tel">010-56940160</a> <span class="desc">周一至周日（9:00-21:00）法定節假日除外</span> <a href="mailto:bjtshb@163.com" class="mail">bjtshb@163.com</a> <span class="address">北京市通州區馬駒橋鎮景盛南二街納特園區11號樓701</span> </div> <div class="qrcode"> <img src="http://static.bjtshb.com/static/images/10.png"><br>掃一掃關注我們 </div> </div> </div> <div class="_copyright"> <div class="area"> Copyright © 北京陶氏環?？萍加邢薰?<a target="_blank">京ICP備16042074號</a> <div class="_share jiathis_style_32x32"> <a href="javascript:;" class="jiathis_button_cqq"></a> <a href="javascript:;" class="jiathis_button_weixin"></a> <a href="javascript:;" class="jiathis_button_tsina"></a> </div> </div> </div> <a href="javascript:;" class="_fllow" id="_fllow" onClick="(function(){var b=window.scrollY,c=setInterval(function(){b-=b*.1;b<=1?window.clearInterval(c):window.scrollTo(0,b)},9)})()">聯系我們</a> <a href="javascript:;" class="_message_btn" onClick="$('.to_message').show()">在線<br>留言</a> <a target="_blank" class="_QQ_btn">QQ<br>咨詢</a> <div class="to_message"> <h2 align="center">留言</h2> <div class="item"><label><input type="radio" name="_sex" value="0" checked />先生</label><label><input type="radio" name="_sex" value="1" />女士</label></div> <div class="item"><input class="input_text" type="text" placeholder="姓名" id="_name" /></div> <div class="item"><input class="input_text" type="tel" placeholder="手機號碼" id="_phone" /></div> <div class="item"><textarea rows="4" class="input_text" placeholder="留言內容" id="_content"></textarea></div> <div class="item"><button class="input_submit" onClick="signin(this)">確定</button></div> <a class="close" href="javascript:;" onClick="$('.to_message').hide()">關閉</a> </div> <script type="text/javascript" src="http://v3.jiathis.com/code/jia.js" charset="utf-8"></script> <script type="text/javascript"> function signin(obj){ var submitBtn = $(obj); 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