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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774942539264/5859.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rfwdmhd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774942539264/5859.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="auvbk2y" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>實(shí)驗(yàn)室用精餾塔哪里有賣,塔</p><p><span>***更新：</span>2020-12-20 04:14:27</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="2bx2wln" 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(jī): </span>0510-85952851</p><p><span>地址: </span>雪浪街道南湖中路</p><p>[當(dāng)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="kjvwiua" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="x2gc8o9" class="box"><p><p style="text-indent:25px">填料壓緊裝置：填料塔的附件有填料支撐裝置、液體分布裝置、液體再分布器、除沫裝置、填料壓緊裝置這五種。⑴填料支撐裝置主要用途是支撐塔內(nèi)的填料，同時(shí)又能保證氣液兩相順利通過。若設(shè)計(jì)不當(dāng)，填料塔的液泛可能首先在填料支撐裝置上發(fā)生。對(duì)填料支撐裝置的要求：對(duì)于普通填料，實(shí)驗(yàn)室用精餾塔哪里有賣，支撐裝置的自由截面積應(yīng)不低于全塔面積的50%，實(shí)驗(yàn)室用精餾塔哪里有賣，并且要大于填料層的自由截面積；具有足夠的機(jī)械強(qiáng)度，實(shí)驗(yàn)室用精餾塔哪里有賣、剛度；結(jié)構(gòu)要合理，利于氣液兩相均勻分布，阻力小，便于拆裝。酒精回收塔在運(yùn)行過程中，處于工作狀態(tài)下的氣液接觸裝置的動(dòng)力學(xué)狀況，同樣亦是酒精回收塔分類的一種方法。實(shí)驗(yàn)室用精餾塔哪里有賣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="實(shí)驗(yàn)室用精餾塔哪里有賣,塔" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774942539264/5859.png"></div><p style="text-indent:25px">酒精回收塔的蒸餾機(jī)按裝置的形式，大致可分為著幾類:臥式蒸餾機(jī)在酒精蒸餾技術(shù)發(fā)展史上曾有一個(gè)階段，酒精蒸餾機(jī)組呈水平方向布置，此時(shí)，呈多釜串聯(lián)使用，此即臥式蒸餾機(jī)之雛形.近代亦有臥式酒精蒸餾機(jī)組者。傾斜式蒸餾機(jī)追溯歷史，以前酒精蒸餾曾使用過法國的歧勞摸氏(Guillaume)所發(fā)明的傾斜式蒸餾機(jī)。直立式蒸餾機(jī)在歷史上經(jīng)過臥式A餾機(jī)組的階段后，即進(jìn)入豎塔式即直立式蒸餾機(jī)組的發(fā)展階段，一直至今，絕大部分為直立式者。酒精回收塔工作原理利用酒精沸點(diǎn)低于不及其它溶液沸點(diǎn)的原理，用稍高于酒精沸點(diǎn)的溫度，將需回收的稀酒精溶液進(jìn)行加熱揮發(fā)，經(jīng)塔體精餾后﹐析出純酒精氣體,提高酒精溶液的濃度，達(dá)到回收酒精的目的。福州精餾塔公司浮閥塔構(gòu)造簡單，自在截面積較大，造價(jià)比泡罩塔降低12～15%，處置才能比泡罩塔板進(jìn)步20～40%左右。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="實(shí)驗(yàn)室用精餾塔哪里有賣,塔" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774896982340/8138000.png"></div><p style="text-indent:25px">填料塔的流體力學(xué)性能：填料塔傳質(zhì)性能的好壞、負(fù)荷的大小及操作的穩(wěn)定性在很大程度取決于流體通過填料的流體力學(xué)性能，也即氣體通過填料層的壓降。在填料塔中，氣體靠壓差自下而上通過填料層，液體靠重力自上而往下的流過填料層。將氣體體積流量與塔截面積之比定義為空塔氣速，實(shí)驗(yàn)測得的不同液體噴淋量下的填料層壓降與空塔氣速的關(guān)系。酒精回收塔適用于制藥、食品、輕工、化工等行業(yè)的稀酒精回收。也適用于甲醇等其他溶煤產(chǎn)品的蒸餾。</p><p style="text-indent:25px">散裝填料塔規(guī)格的選擇工業(yè)塔常用的散裝填料主要有DN16、DN25、DN38、DN50、DN76等幾種規(guī)格。同類填料，尺寸越小，分離效率越高，但阻力增加，通量減少，填料費(fèi)用也增加很多。而大尺寸的填料應(yīng)用于小直徑塔中，又會(huì)產(chǎn)生液體分布不良及嚴(yán)重的壁流，使塔的分離效率降低。因此，對(duì)塔徑與填料尺寸的比值要有一規(guī)定，一般塔徑與填料公稱直徑的比值D/d應(yīng)大于8。規(guī)整填料塔規(guī)格的選擇工業(yè)上常用規(guī)整填料的型號(hào)和規(guī)格的表示方法很多，國內(nèi)習(xí)慣用比表面積表示，主要有125、150、250、350、500、700等幾種規(guī)格，同種類型的規(guī)整填料，其比表面積越大，傳質(zhì)效率越高，但阻力增加，通量減少，填料費(fèi)用也明顯增加。選用時(shí)應(yīng)從分離要求、通量要求、場地條件、物料性質(zhì)及設(shè)備投資、操作費(fèi)用等方面綜合考慮，使所選填料既能滿足技術(shù)要求，又具有經(jīng)濟(jì)合理性。塔體設(shè)計(jì)高度5-40m，并根據(jù)距離地面高度配合使用相對(duì)應(yīng)功率的航標(biāo)燈。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="實(shí)驗(yàn)室用精餾塔哪里有賣,塔" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774983760262/6594525.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(duì)液體分布裝置的研究較成熟，但對(duì)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(jìn)步。盡管如此，新型填料的開發(fā)與應(yīng)用仍將會(huì)有發(fā)展，其重點(diǎn)亦仍是規(guī)整填料。預(yù)計(jì)今后填料塔的發(fā)展仍應(yīng)歸結(jié)到以下三個(gè)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。一座填料塔可以選用同種類型，同一規(guī)格的填料，也可選用同種類型不同規(guī)格的填料。福州精餾塔公司</p><p style="text-indent:25px">塔釜液面堅(jiān)持衡定，闡明物料守恒，因?yàn)檫M(jìn)料量等于塔頂和塔釜的采出量之和。實(shí)驗(yàn)室用精餾塔哪里有賣</p><p style="text-indent:25px">采用溫度作為間接質(zhì)量指標(biāo)有一個(gè)前提，那就是塔內(nèi)壓力應(yīng)保持恒定。盡管精餾塔的塔內(nèi)壓力一般設(shè)有壓力控制系統(tǒng)進(jìn)行控制，但壓力也總會(huì)有些微小的波動(dòng)，這對(duì)一般產(chǎn)品純度要求不太高的精餾塔是可以忽略的，但是對(duì)精密精餾等控制要求較高的場合，微小壓力的變化，將影響溫度與組分之間的關(guān)系，使得產(chǎn)品質(zhì)量難于滿足工藝要求，為此需對(duì)壓力的波動(dòng)加以補(bǔ)償，常用的有溫差控制和雙溫差控制。溫差控制：在精密精餾時(shí)，溫差控制可以提高產(chǎn)品的質(zhì)量。在精餾中，任一塔板的溫度是成分與壓力的函數(shù)，影響溫度變化的因素可以是成分，也可以是壓力。在一般塔的操作中，無論是常壓塔、減壓塔，還是加壓塔，壓力都是維持在很小范圍內(nèi)波動(dòng)，所以溫度與成分有對(duì)應(yīng)關(guān)系。但在精密精餾中，要求產(chǎn)品純度很高，且塔頂和塔底產(chǎn)品的沸點(diǎn)相差又不大，此時(shí)壓力變化引起溫度的變化比成分變化引起的溫度變化要大得多，所以微小壓力的波動(dòng)具有較大的影響，不能忽略。例如，苯-甲苯二甲苯分離時(shí)，大氣壓變化6.67 kPa，苯的沸點(diǎn)變化2℃，已超過了質(zhì)量指標(biāo)的規(guī)定。這樣的氣壓變化是完全可能發(fā)生的，這就破壞了溫度與成分之間的對(duì)應(yīng)關(guān)系。實(shí)驗(yàn)室用精餾塔哪里有賣</p><p 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