陜西精餾塔哪家好真誠推薦無錫明燕裝備供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="采用溫度作為被控變量時，選擇哪一點溫度作為被控變量，應(yīng)根據(jù)實際情況加以選擇，主要有以下幾種：塔頂(或塔底)的溫度控制：一般來說，如果希望保持塔頂產(chǎn)品符合質(zhì)量要求，也就是主要產(chǎn)品從頂部餾出時，陜西精餾塔哪家好，應(yīng)選擇塔頂溫度作為被控變量，這樣"><meta name="keywords" content="陜西精餾塔哪家好,塔"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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href="http://www.cdcfah.com/cp/third-czsbxw_tianliaotakp/">填料塔</a>?陜西精餾塔哪家好真誠推薦無錫明燕裝備供應(yīng)</p><div id="sqx7dug" class="leftbox clearfix"><h1>陜西精餾塔哪家好真誠推薦無錫明燕裝備供應(yīng)</h1><div id="yl8bn82" class="proBig"><div id="v8wm38c" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395775310764387/8146807.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="avmnuvs" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395775310764387/8146807.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xgnjlxj" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>陜西精餾塔哪家好,塔</p><p><span>***更新：</span>2021-01-22 07:15:49</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="mkrdelh" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無錫明燕裝備有限公司</a></p><p><span>聯(lián)系人：</span>王晶</p><p><span>郵箱: </span>1445901823@qq.com</p><p><span>電話: </span>13801517856</p><p><span>傳真: </span>0510_85952851</p><p><span>網(wǎng)址: </span>http://www.etaihu.com</p><p><span>手機: </span>0510-85952851</p><p><span>地址: </span>雪浪街道南湖中路</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="pnoactk" class="page-proshow02"><p class="title">詳細說明</p><div id="yrdprio" class="box"><p><p style="text-indent:25px">采用溫度作為被控變量時，選擇哪一點溫度作為被控變量，應(yīng)根據(jù)實際情況加以選擇，主要有以下幾種：塔頂(或塔底)的溫度控制：一般來說，如果希望保持塔頂產(chǎn)品符合質(zhì)量要求，也就是主要產(chǎn)品從頂部餾出時，陜西精餾塔哪家好，應(yīng)選擇塔頂溫度作為被控變量，這樣可以得到較好的效果。同樣，為了保持塔底產(chǎn)品符合質(zhì)量要求。則應(yīng)以塔底溫度作為被控變量。為了保證另一產(chǎn)品質(zhì)量在一定的規(guī)格范圍內(nèi)，塔的操作要有一定裕量。例如，如果主要產(chǎn)品在頂部餾出，操縱變量為回流量的話，再沸器的加熱量要有一定富裕，以使在任何可能的擾動條件下，塔底產(chǎn)品的規(guī)格都在一定范圍內(nèi)。填料塔的附件有填料支撐裝置、液體分布裝置，陜西精餾塔哪家好，陜西精餾塔哪家好、液體再分布器、除沫裝置、填料壓緊裝置這五種。陜西精餾塔哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西精餾塔哪家好,塔" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395775310764387/8146807.png"></div><p style="text-indent:25px">填料塔的塔身是一直立式圓筒，底部裝有填料支承板，填料以亂堆或整砌的方式放置在支承板上。填料的上方安裝填料壓板，以防被上升氣流吹動。液體從塔頂經(jīng)液體分布器噴淋到填料上，并沿填料表面流下。氣體從塔底送入，經(jīng)氣體分布裝置（小直徑塔一般不設(shè)氣體分布裝置）分布后，與液體呈逆流連續(xù)通過填料層的空隙，在填料表面上，氣液兩相密切接觸進行傳質(zhì)。填料塔屬于連續(xù)接觸式氣液傳質(zhì)設(shè)備，兩相組成沿塔高連續(xù)變化，在正常操作狀態(tài)下，氣相為連續(xù)相，液相為分散相。當液體沿填料層向往下的流動時，有逐漸向塔壁集中的趨勢，使得塔壁附近的液流量逐漸增大，這種現(xiàn)象稱為壁流。濟南填料塔廠家液相由除沫器下方送入，由塔底排出，而氣相由支撐擱柵下方進入，由塔頂排出。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西精餾塔哪家好,塔" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774896982340/8138000.png"></div><p style="text-indent:25px">填料塔內(nèi)裝有一定高度的填料，液體沿填料自上向往下的流動，氣體由下向上同液膜逆流接觸，進行物質(zhì)傳遞。常應(yīng)用于蒸餾、吸水、萃取等操作中。填料塔是指流體阻力小，適用于氣體處理量大而液體量小的過程。液體沿填料表面自上向往下的流動，氣體與液體成逆流或并流，視具體反應(yīng)而定。填料塔內(nèi)存液量較小。無論氣相或液相，其在塔內(nèi)的流動型式均接近于活塞流。若反應(yīng)過程中有固相生成，不宜采用填料塔。填料塔在塔內(nèi)充填各種形狀的填充物（稱為填料），使液體沿填料表面流動形成液膜，分散在連續(xù)流動的氣體之中，氣液兩相接觸面在填料的液膜表面上。它屬膜狀接觸設(shè)備。</p><p style="text-indent:25px">熱量平衡是指進塔熱量和出塔熱量的平衡，具體反應(yīng)在塔頂溫度上。熱量平衡是物料平衡和氣液相平衡得以實現(xiàn)的基礎(chǔ)，反過來又依附于它們。沒有熱的氣相和冷的回流，整個精餾過程就無法實現(xiàn)；而塔的操作壓力、溫度的改變(即氣液相平衡組成改變)，則每塊塔板上氣相冷凝的放熱量和液體汽化的吸熱量也會隨之改變，體現(xiàn)于進料供熱和塔頂取熱發(fā)生的變化上。掌握好物料平衡、氣液相平衡和熱量平衡是精餾操作的關(guān)鍵所在，三個平衡之間相互影響、相互制約。在操作中通常是以控制物料平衡為主，相應(yīng)調(diào)節(jié)熱量平衡，達到氣液相平衡。要保持塔底液面穩(wěn)定平衡，必需穩(wěn)定：①進料量和進料溫度；②塔頂、側(cè)線及塔底抽出量；③塔頂壓力。在化工、輕工、電鍍等多個領(lǐng)域都會用到一些塔容器，比如蒸餾塔。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西精餾塔哪家好,塔" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774825449144/5947973.png"></div><p style="text-indent:25px">填料塔領(lǐng)域比較多的發(fā)展還是在氣液分布器方面。國外大公司對液體分布裝置的研究較成熟，但對氣體分布器的研究是幾年前才起步的。與此相反的是，近五六年來，塔器中板式塔技術(shù)卻又有了明顯的進步。盡管如此，新型填料的開發(fā)與應(yīng)用仍將會有發(fā)展，其重點亦仍是規(guī)整填料。預(yù)計今后填料塔的發(fā)展仍應(yīng)歸結(jié)到以下三個方面：①新型填料及塔內(nèi)件的開發(fā)。②填料塔的性能研究。③填料塔的工業(yè)應(yīng)用。80年代后期和90年代初期，國外還是推出了一些高效新型填料，數(shù)量上雖不是很多，但也還有特色。填料塔和板式塔有許多不同點，了解這些不同點對于合理選用塔設(shè)備是有幫助的。濟南填料塔廠家</p><p style="text-indent:25px">在有色金屬冶金中，精餾成功地用于粗鋅的精煉，精餾之所以能使液體混合物得到較的分離，關(guān)鍵在于回流應(yīng)用。陜西精餾塔哪家好</p><p style="text-indent:25px">蒸餾塔塔底跑汽（即加熱蒸氣竄入殘液中外溢），一般是由于加熱蒸氣的量和壓力偏大所致，此時可適量減小進汽量和壓力。如果塔底的加熱釜中殘液的液面太低（低于塔釜節(jié)總高的1／2），廢糟液排出時也會產(chǎn)生液少汽多現(xiàn)象。解決的方法是：應(yīng)暫時關(guān)小或關(guān)閉出口閥門，以增加液位高度，并保持塔釜節(jié)殘液高度。采用浮筒式排糟器時，如果浮筒被卡住不能下落，也會造成殘糟廢液排放過量，因此也要注意排糟器的機械故障。如果使用的“u”形虹吸液封管高度不夠，也會造成塔底跑汽，因此從管下端至上出口的高度一般不得低于2.5～3米，以平衡壓力，阻止跑汽。陜西精餾塔哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2958748.html</p></div></div></div></div></div><div id="atkrt3k" class="page-right twoColRt"><div id="j8ct7ru" class="box01 margin10 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