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<meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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href="http://www.cdcfah.com/cp/third-jxjxysb_hrzlkdsb/">換熱、制冷空調(diào)設(shè)備</a>?云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家來電咨詢上海板換機械設(shè)備供應(yīng)</p><div id="e8mv8fm" class="leftbox clearfix"><h1>云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家來電咨詢上海板換機械設(shè)備供應(yīng)</h1><div id="e4pveca" class="proBig"><div id="lvqct8m" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221258347089843/7634757.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ydj39gx" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221258347089843/7634757.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="va7fbka" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家,換熱器</p><p><span>***更新：</span>2021-01-25 12:08:19</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="27e3e8u" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海板換機械設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>張云周</p><p><span>郵箱: </span>shinfo@shphe.com</p><p><span>電話: </span>15921733465</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.shphe.com</p><p><span>手機: </span>021-57247534</p><p><span>地址: </span>山陽鎮(zhèn)山寧路99號</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="qy88xqb" class="page-proshow02"><p class="title">詳細說明</p><div id="qi7e2iu" class="box"><p><p> 在低溫流體換熱器把熱量釋放給低溫流體。4，云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家、直接接觸式換熱器又被稱為混合式換熱器，這種換熱器是兩種流體直接接觸，彼此混合進行換熱的設(shè)備，例如，冷水塔、氣體冷凝器等。5、復(fù)式換熱器兼有汽水面式間接換熱及水水直接混流換熱兩種換熱方式的設(shè)備。同汽水面式間接換熱相比，具有更高的換熱效率；同汽水直接混合換熱相比具有較高的穩(wěn)定性及較低的機組噪音。二、按用途分類1、加熱器加熱器是把流體加熱到必要的溫度，但加熱流體沒有發(fā)生相的變化。2、預(yù)熱器預(yù)熱器預(yù)先加熱流體，為工序操作提供標(biāo)準(zhǔn)的工藝參數(shù)。換熱器3、過熱器過熱器用于把流體（工藝氣或蒸汽）加熱到過熱狀態(tài)。4、蒸發(fā)器蒸發(fā)器用于加熱流體，達到沸點以上溫度，使其流體蒸發(fā)，一般有相的變化。三、按結(jié)構(gòu)分類可分為：浮頭式換熱器、固定管板式換熱器、U形管板換熱器、板式換熱器等。折疊編輯本段行業(yè)狀況折疊概述換熱器在石油、化工、輕工、制藥、能源等工業(yè)生產(chǎn)中，常常用作把低溫流體加熱或者把高溫流體冷卻，把液體汽化成蒸汽或者把蒸汽冷凝成液體。換熱器既可是一種單元設(shè)備，云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家，如加熱器、冷卻器和凝汽器等；也可是某一工藝設(shè)備的組成部分，云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家，如氨合成塔內(nèi)的換熱器。換熱器是化工生產(chǎn)中重要的單元設(shè)備。換熱器維修清洗的方法？云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221258347089843/7634757.jpg"></div><p> 板式換熱器材料質(zhì)量控制的關(guān)鍵，在于確保板片、密封墊片、壓緊板、中間隔板、夾緊螺柱、管法蘭和接管等主要零件及其焊接質(zhì)量，才能保證成品的使用壽命和安全可靠。此外，選材、用材應(yīng)該追求經(jīng)濟合理原則。板式換熱器主要零部件用的材料應(yīng)不低于國家標(biāo)準(zhǔn)GB16409《板式換熱器》或行業(yè)標(biāo)準(zhǔn)JB8701《制冷用板式換熱器》的規(guī)定。材料的質(zhì)量控制應(yīng)貫穿于采購、驗收、標(biāo)志、保管、發(fā)放和生產(chǎn)加工等環(huán)節(jié)。板片用材料要求板片的材質(zhì)對板式換熱器的性能、壽命、適用工況和板片成形質(zhì)量等均有重要的影響。材料的質(zhì)量控制主要包括兩個方面：1、材料的化學(xué)成分、力學(xué)性能及其它技術(shù)要求應(yīng)符合相應(yīng)標(biāo)準(zhǔn)的規(guī)定；2、針對材料的特性和適用范圍，正確、合理選用，即必需考慮換熱介質(zhì)的性質(zhì)、工況條件（包括氯化物含量、PH值大小、操作溫度、操作壓力、間隙操作還是連續(xù)操作等），以及材料的成型加工性能、耐腐蝕性能等。板片常用材料主要有奧氏體不銹鋼316L、304、超級奧氏體不銹鋼254SMO、鈦GR1及鈦鈀合金GR11、鎳N02201及鎳基合金C276、C2000和銅鋁等冷軋薄板。云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家煙氣換熱器結(jié)構(gòu)緊湊，占地面積小。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221258627802734/4553744.jpg"></div><p> 并對影響U型管埋地換熱器傳熱性能的各因素進行了實驗研究與分析，如：熱響應(yīng)實驗初始運行時間、U型管內(nèi)循環(huán)水流速、埋孔深度與埋孔內(nèi)的回填土。2影響U型管埋地換熱器傳熱性能的因素分析初始運行時間熱響應(yīng)實驗達到傳熱平衡需要一段時間過程。在實驗的前階段，水箱內(nèi)水的溫度高于U型管內(nèi)的水的溫度，而且在加熱器的輸入功率下水溫變化比較迅速。所以土壤傳熱性能測試儀器水箱進出管路上的熱電阻所測到的溫度可能會對測試結(jié)果有影響[7]。根據(jù)圖1－1，前5小時，由于傳熱剛開始，土壤與循環(huán)水的具有溫差，傳熱平衡還未建立，這時根據(jù)實驗測得數(shù)據(jù)算出的土壤導(dǎo)熱系數(shù)高達W/mk，明顯是不符合實際的；5h~12h內(nèi)雖然熱平衡已經(jīng)被打破，但由于測試時間較短，循環(huán)水與土壤還未達到進一步平衡，測試出來的導(dǎo)熱系數(shù)還是偏大。12h~20h內(nèi)系統(tǒng)傳熱基本平衡，測試結(jié)果符合要求。圖1－2擬合直線2是忽略**小時的測試數(shù)據(jù)擬合直線，其導(dǎo)熱系數(shù)比48h內(nèi)所有數(shù)據(jù)算出的導(dǎo)熱系數(shù)要大。這表明：對于一般的測試環(huán)境條件，為了獲得更準(zhǔn)確的導(dǎo)熱系數(shù)，至少忽略**小時的數(shù)據(jù)，這些數(shù)據(jù)會導(dǎo)致導(dǎo)熱系數(shù)的估值偏大。循環(huán)水流速埋地換熱器的U型埋管內(nèi)循環(huán)水的流速也是影響傳熱性能的重要因素。</p><p> 放置墊鐵的基礎(chǔ)表面是否平整等?；A(chǔ)驗收完畢后，在安裝換熱器之前在基礎(chǔ)上放墊鐵，安放墊鐵處的基礎(chǔ)表面必須鏟平，使兩者能很好的接觸。墊鐵厚度可以調(diào)整，使換熱器能達到設(shè)計的水平高度。墊鐵放置后可增加換熱器在基礎(chǔ)上的穩(wěn)定性，并將其重量通過墊鐵均勻地傳遞到基礎(chǔ)上去。墊鐵可分為平墊鐵、斜墊鐵和開口墊鐵。其中，斜墊鐵必須成對使用。地腳螺栓兩側(cè)均應(yīng)有墊鐵，墊鐵的安裝不應(yīng)妨礙換熱器的熱膨脹。換熱器就位后需用水平儀對換熱器找平，這樣可使各接管都能在不受力的情況下連接管道。找平后，斜墊鐵可與支座焊牢，但不得與下面的平墊鐵或滑板焊死。當(dāng)兩個以上重疊式換熱器安裝時，應(yīng)在下部換熱器找正完畢，并且地腳螺栓充分固定后，再安裝上部換熱器。可抽管束換熱器安裝前應(yīng)抽芯檢查，清掃，抽管束時應(yīng)注意保護密封面和折流板。移動和起吊管束時應(yīng)將管束放置在**的支承結(jié)構(gòu)上，以避免損傷換熱管。根據(jù)換熱器的形式，應(yīng)在換熱器的兩端留有足夠的空間來滿足條件（操作）清洗、維修的需要。浮頭式換熱器的固定頭蓋端應(yīng)留有足夠的空間以便能從殼體內(nèi)抽出管束，外頭蓋端必須也留出一米以上的位置以便裝拆外頭蓋和浮頭蓋。板式換熱器種類繁多，怎么選？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140088349609/8899149.jpg"></div><p> 船用板式換熱器的板片結(jié)構(gòu)直接影響了換熱器的性能。本文將對現(xiàn)有的一系列板片參數(shù)對換熱器性能的影響進行探討，以求為進一步的研究提供一些借鑒。由傳熱系數(shù)的表達式可知，板片的厚度δ越小，換熱器的傳熱效果越好，船用板式換熱器的標(biāo)準(zhǔn)提出換熱器的板片厚度在～，目前行業(yè)薄的鈦板板片已經(jīng)達到。板片再做薄對提高換熱效果不會太明顯，主要是為了減少成本，降低耗材，但薄板片在壓制后強度會相對減小。船用板式換熱器提高k值的主要方法之一是提高板片兩側(cè)換熱介質(zhì)表面的流體擾動程度。換熱器的板片通常加工成人字波紋板，人字角的大小對傳熱和流體阻力影響很大。人字角大的板片傳熱系數(shù)高、流體阻力亦大；反之人字角小的板片傳熱系數(shù)和阻力都低。120°人字角的波紋傳熱效果好，角度變小或者變大，傳熱效率都會變低，通常的**冷卻器與缸套水冷卻器采用120°人字角板片，以達到大的換熱效果。在船用滑油冷卻器中，由于滑油的粘度高于水的粘度，如果全使用120°大夾角的板片會造成流體阻力大，而60°小夾角板片的傳熱系數(shù)低。因此滑油冷卻器往往使用2種板片混裝的方式，在允許壓降的情況下，換熱混合設(shè)計，換熱面積可達更優(yōu)效果。流體在板間流動，其流速是不均勻的。板式換熱器分類有幾種？寧夏板式換熱器生產(chǎn)商</p><p style="text-indent:25px">上海板式換熱器廠家排名。云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家</p><p> 使壓力較高的流體由噴管噴出，形成很高的速度，低壓流體被引入混合室與射流直接接觸進行傳熱，并一同進入擴散管，在擴散管的出口達到同一壓力和溫度后送給用戶。(4)混合式冷凝器這種設(shè)備一般是用水與蒸汽直接接觸的方法使蒸汽冷凝。折疊蓄熱式蓄熱式換熱器用于進行蓄熱式換熱的設(shè)備。內(nèi)裝固體填充物，用以貯蓄熱量。一般用耐火磚等砌成火格子（有時用金屬波形帶等）。換熱分兩個階段進行。***階段，熱氣體通過火格子，將熱量傳給火格子而貯蓄起來。第二階段，冷氣體通過火格子，接受火格子所儲蓄的熱量而被加熱。這兩個階段交替進行。通常用兩個蓄熱器交替使用，即當(dāng)熱氣體進入一器時，冷氣體進入另一器。常用于冶金工業(yè)，如煉鋼平爐的蓄熱室。也用于化學(xué)工業(yè)，如煤氣爐中的空氣預(yù)熱器或燃燒室，人造石油廠中的蓄熱式裂化爐。蓄熱式換熱器一般用于對介質(zhì)混合要求比較低的場合。折疊陶瓷陶瓷換熱器是一種新型的列管式高溫?zé)崮芑厥昭b置，主要成份為碳化硅，可以***用于冶金、機械、建材、化工等行業(yè)，直接回收各種工業(yè)窯爐排放的850－1400℃高溫?zé)煔庥酂?，以獲得高溫助燃空氣或工藝氣體。陶瓷換熱器研制成的這種裝置的換熱元件材料系一種新型碳化硅工程陶瓷。云南結(jié)構(gòu)緊湊換熱器生產(chǎn)廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3005947.html</p></div></div></div></div></div><div id="o8gcy27" class="page-right twoColRt"><div id="tv3ky02" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x7a7i7z" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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