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<h3><a href="/dfjkge/dfjkge.html">公司動態</a></h3> <h3><a href="/dfdhiv/dfdhiv.html">常見問題</a></h3> <h3><a href="/kjlshd/kjlshd.html">行業信息</a></h3> <div class="clear"></div> </div>  <div class="pc5details"> <div class="container"> <div class="pc5newdetails"> <div class="title"> <h1>袋式除塵器濾料故障與結構工作原理</h1> <div class="time"><img src="/images/time.png" />發布時間：2020-07-14</div> </div> <div class="describe"> 濾料是布袋除塵器的心臟，單機布袋除塵器的主要除塵功能都是通過濾料來實現的，在正常使.. </div> <p><span style="color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px;">一、脈沖布袋除塵器濾料故障</span><br style="padding: 0px; margin: 0px; color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px; white-space: normal;"/><span style="color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px;">　　濾料是布袋除塵器的心臟，單機布袋除塵器的主要除塵功能都是通過濾料來實現的，在正常使用過程中，濾料的故障主要有兩種類型：濾料積灰過多或糊袋；濾料洞穿。一種故障會造成除塵器的壓阻持續上升，吸塵口風量減少，系統運行狀況惡化；二種情況會造成煙囪排放超標。</span><br style="padding: 0px; margin: 0px; color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px; white-space: normal;"/><span style="color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px;">　　濾料的這兩種故障的發生一般都和噴吹系統、控制系統、本體漏風以及系統設計有的關系。濾料的選型和質量、安裝工藝的合理程度以及布袋籠架的質量直接影響到布袋的有效運行。在正常使用過程中濾袋和含塵氣流直接接觸，濾袋的質量不好，在系統壓力以及含塵氣流的摩擦作用下，布袋很容易洞穿，如果粉塵含有的水分或油分，粉塵的粘性較強有的吸水性，花板的平整度不高，將會使布袋的噴吹中心偏移，造成袋口在使用過程中過早磨損，籠架焊接過程中質量差或表面處理不良，有毛刺等現象，布袋在氣流的作用下相互摩擦，造成籠架磨布袋的現象發生，縮短布袋的使用壽命。</span><br style="padding: 0px; margin: 0px; color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px; white-space: normal;"/><span style="color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px;">　　系統設計過程中，過濾風速選擇不當和濾料不匹配，造成風速過高，本體漏風率較大等都會造成布袋壽命縮短或影響除塵效率。在梅雨季節，本體漏風過大對布袋的影響尤為明顯，極易造成糊袋的現象發生。</span><br style="padding: 0px; margin: 0px; color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px; white-space: normal;"/><span style="color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px;">　　二、布袋式脈沖除塵器結構及工作原理</span><br style="padding: 0px; margin: 0px; color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px; white-space: normal;"/><span style="color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px;">　　<a href="http://www.falconwright.com/">布袋式除塵器</a>是由灰斗、含塵氣體空間、導流板、過濾室、凈氣室和安裝在除塵器上部由截止閥和提升切換閥控制的清灰機構等組成。內部一般劃分為4一16個小袋室，下花孔板和頂部蓋板之間為過濾區域；灰斗上部與下花孔板之間為含塵氣體空間；頂部蓋板中間為凈氣空間(即“清灰與凈氣共用通道”)。</span><br style="padding: 0px; margin: 0px; color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px; white-space: normal;"/><span style="color: rgb(62, 70, 81); font-family: Simsun; font-size: 14px;">　　含塵氣體在引風機的作用下吸人進風總管，通過導流板的作用分配到每個小袋室，均勻通過下花孔板，含塵氣體涌人濾袋，粉塵被滯留在濾袋內表面，而氣流則透過濾袋凈化，凈化后的氣流通過引風機排人大氣中。布袋除塵器運行一段時間后，濾袋內表面附著的粉塵層增厚，當<a href="http://www.falconwright.com" target="_self">袋式除塵器</a>運行阻力增大到值后，需對濾袋進行清灰。主要是通過反吹風機、提升切換閥、截止閥及“清灰與凈氣共用通道”等機構來完成反吹清灰過程，其工作過程如下：提升切換閥向下運行，閥板在將出風口關閉的同時打開反吹風口和截止閥，反吹風機鼓人的氣流是與過濾氣流方向相反的逆氣流，改變了濾袋的內外壓差，使濾袋由“膨脹”變“縮癟”狀態，剝離濾袋內表面附著的粉塵層。提升切換閥向上運行，閥板在將出風口打開的同時關閉反吹風口、截止閥、濾袋抖動，使懸浮于濾袋內的粉塵有足夠的自由沉降時間后重新“膨脹”，除塵器恢復到正常過濾狀態。清灰過程是分室輪換進行的，不影響除塵器正常工作。</span></p> <div class="next_page"> <ul> <li> 上一篇：<a 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