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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>河北板式熱換熱器,換熱器</p><p><span>***更新：</span>2021-01-25 10:18:33</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="xj5zdjx" 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="njxvlrv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="h5bxfjh" class="box"><p><p style="text-indent:25px">浮頭式換熱器的浮頭蓋在管束裝入后才能進(jìn)行裝配，河北板式熱換熱器，所以在設(shè)計(jì)中應(yīng)考慮保證浮頭蓋在裝配時(shí)的必要空間。鉤圈對(duì)保證浮頭端的密封、防止介質(zhì)間的串漏起著重要作用。隨著幞頭式換熱器的設(shè)計(jì)、制造技術(shù)的發(fā)展，河北板式熱換熱器，以及長(zhǎng)期以來使用經(jīng)驗(yàn)的積累，鉤圈的結(jié)構(gòu)形式也得到了不段的改進(jìn)和完善。鉤圈一般都為對(duì)開式結(jié)構(gòu)，要求密封可靠，結(jié)構(gòu)簡(jiǎn)單、緊湊，河北板式熱換熱器、便于制造和拆裝方便。浮頭式換熱器以其高度的可靠性和普遍的適應(yīng)性，在長(zhǎng)期使用過程中積累了豐富的經(jīng)驗(yàn)。盡管受到不斷涌現(xiàn)的新型換熱器的挑戰(zhàn)，但反過來也不斷促進(jìn)了自身的發(fā)展。故迄今為止在各種換熱器中仍占主導(dǎo)地位。換熱器在化工、石油、動(dòng)力、食品及其它許多工業(yè)生產(chǎn)中占有重要地位。河北板式熱換熱器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北板式熱換熱器,換熱器" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774187739609/463904.png"></div><p style="text-indent:25px">板式熱交換器結(jié)垢的清洗方式：清洗劑的選擇，目前采用的是酸洗，它包括有機(jī)酸和無機(jī)酸。有機(jī)酸主要有：草酸、甲酸等。無機(jī)酸主要有：鹽酸、硝酸等。根據(jù)換熱器結(jié)垢和工藝、材質(zhì)和水垢成分分析得出：換熱器流通面積小，內(nèi)部結(jié)構(gòu)復(fù)雜，清洗液若產(chǎn)生沉淀不易排放。換熱器材質(zhì)為鎳鈦合金，使用鹽酸為清洗液，容易對(duì)板片產(chǎn)生強(qiáng)腐蝕，縮短換熱器的使用壽命。通過反復(fù)試驗(yàn)發(fā)現(xiàn)，選擇甲酸作為清洗液效果較好。在甲酸清洗液中加入緩沖劑和表面活性劑，清洗效果更好，并可降低清洗液對(duì)板片的腐蝕。天津壓縮機(jī)換熱器特別是由于套管換熱器同時(shí)具備傳熱系數(shù)大，傳熱推動(dòng)力大及能夠承受高壓強(qiáng)的優(yōu)點(diǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北板式熱換熱器,換熱器" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774202222023/8006120.png"></div><p style="text-indent:25px">對(duì)數(shù)平均溫差大，末端溫差小在管殼式換熱器中，流體分別在管程和殼程內(nèi)流動(dòng)，總體上是錯(cuò)流流動(dòng)，對(duì)數(shù)平均溫差修正系數(shù)小，而板式換熱器多是并流或逆流流動(dòng)方式，其修正系數(shù)也通常在0。95左右，此外，冷、熱流體在板式換熱器內(nèi)的流動(dòng)平行于換熱面、無旁流，因此使得板式換熱器的末端溫差小，對(duì)水換熱可低于1℃，而管殼式換熱器一般為5℃。占地面積小板式換熱器結(jié)構(gòu)緊湊，單位體積內(nèi)的換熱面積為管殼式的2~5倍，也不像管殼式那樣要預(yù)留抽出管束的檢修場(chǎng)所，因此實(shí)現(xiàn)同樣的換熱量，板式換熱器占地面積約為管殼式換熱器的1/5~1/10。</p><p style="text-indent:25px">可拆板式換熱器的優(yōu)勢(shì)：豐富的板片組合帶來的技術(shù)優(yōu)勢(shì)板片的換熱性能和流動(dòng)性能隨著板片的長(zhǎng)度、寬度、槽深以及波紋角度的不同而不同，因?yàn)閾Q熱工況千差萬別，而每種型號(hào)板片一般只在某一工況范圍內(nèi)到達(dá)較好的傳熱效果，因此豐富的板片組合能更好的匹配不同換熱工況，在獲得好的傳熱效果的同時(shí)并能較大降低板式換熱器成本，而且能獲得更高的板間流速，從而降低了板片的腐蝕和結(jié)垢速度。獨(dú)特的板片設(shè)計(jì)采用超細(xì)網(wǎng)格的數(shù)值模擬技術(shù)結(jié)合精密的試驗(yàn)測(cè)量方法，設(shè)計(jì)出流動(dòng)和傳熱性能優(yōu)越的換熱板片。換熱器的外徑應(yīng)小于殼體內(nèi)徑，一般推薦浮頭管板與殼體內(nèi)壁的間隙。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北板式熱換熱器,換熱器" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774290220695/551801.png"></div><p style="text-indent:25px">管殼式換熱器容易清洗框架式板式換熱器只要松動(dòng)壓緊螺栓，即可松開板束，卸下板片進(jìn)行機(jī)械清洗，這對(duì)需要經(jīng)常清洗設(shè)備的換熱過程十分方便。熱損失小板式換熱器只有傳熱板的外殼板暴露在大氣中，因此散熱損失可以忽略不計(jì)，也不需要保溫措施。而管殼式換熱器熱損失大，需要隔熱層。容量較小是管殼式換熱器的10%~20%。單位長(zhǎng)度的壓力損失大由于傳熱面之間的間隙較小，傳熱面上有凹凸，因此比傳統(tǒng)的光滑管的壓力損失大。不易結(jié)垢由于內(nèi)部充分湍動(dòng)，所以不易結(jié)垢，其結(jié)垢系數(shù)*為管殼式換熱器的1/3~1/10。換熱器當(dāng)溫度差稍大而殼程壓力又不太高時(shí)，可在殼體上安裝有彈性的補(bǔ)償圈，以減小熱應(yīng)力。天津壓縮機(jī)換熱器</p><p style="text-indent:25px">換熱器改進(jìn)了傳熱，減少了結(jié)垢，真正的逆流，降低了成本，無振動(dòng)。河北板式熱換熱器</p><p style="text-indent:25px">直接傳熱式換熱器：一種不需傳熱壁面，由冷流體與熱流體直接接觸進(jìn)行換熱的操作過程的換熱器，此類換熱器常用于工業(yè)生產(chǎn)中。間壁傳熱式換熱器：冷、熱流體通過管子、板等壁面進(jìn)行熱量交換的傳熱操作過程的換熱器，是比較普通的也比較常用的換熱器，冷、熱流體都是流體，可以是空氣、煙氣、蒸汽、水。這是本文重點(diǎn)進(jìn)行討論的換熱器類型。蓄熱式換熱器：系間歇傳熱，在廢熱再生器中是切實(shí)可行有效的回收廢熱的方式，常被用于回收燃燒氣體的廢熱以及蒸汽等用量不均時(shí)作為調(diào)節(jié)手段。河北板式熱換熱器</p></p><br /><p>文章來源地址: 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