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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 id="qgqbi"></u><noframes id="qgqbi"></noframes><menu 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href="http://www.cdcfah.com/cp/second-_jxjxysb/">機械及行業(yè)設備</a>?<a href="http://www.cdcfah.com/cp/third-jxjxysb_hrzlkdsb/">換熱、制冷空調(diào)設備</a>?云南石化換熱器來電咨詢上海板換機械設備供應</p><div id="5szmd37" class="leftbox clearfix"><h1>云南石化換熱器來電咨詢上海板換機械設備供應</h1><div id="ut29ure" class="proBig"><div id="53dmjl3" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140090136719/2933696.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="6xtqxjg" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140090136719/2933696.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yx8lxol" 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)品關鍵詞：</span>云南石化換熱器,換熱器</p><p><span>***更新：</span>2021-01-14 09:08:00</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="ymb37ke" 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="kelnugd" class="page-proshow02"><p class="title">詳細說明</p><div id="sme2dur" class="box"><p><p> 采用高速的冷的或稍微加溫的含微粒的流體給翅片表面噴鍍粉末粒子，云南石化換熱器，云南石化換熱器。用該方法不僅可噴涂金屬還能噴涂合金和陶瓷(金屬陶瓷混合物)，從而得到各種不同性能的表面。通常在實踐中翅片底面的接觸阻力是限制管子加裝翅片的因素之一。為了評估翅片管換熱器元件進行了試驗研究。試驗是采用在翅片表面噴涂ac－鋁，并添加了24a白色電爐氧化鋁。將試驗所得數(shù)據(jù)加以整理，便可評估翅片底面的接觸阻力。將研究的翅片的效率與計算數(shù)據(jù)進行比較，得出的結(jié)論是：氣動噴涂翅片的底面的接觸阻力對效率無實質(zhì)性影響。為了證實這一點，又對基部(管子)與表面(翅片)的過渡區(qū)進行了金相結(jié)構(gòu)分析。對過渡區(qū)試片的分析表明，連接邊界的整個長度上無不嚴密性的微裂紋。所以，氣動噴涂法促進表面與基本相互作用的分支邊界的形成，云南石化換熱器，能促進粉末粒子向基體的滲透，這就說明了附著強度高，有物理接觸和金屬鏈形成。因而氣動噴涂法不但可用于成型，還可用來將按普通方法制造的翅片固定在換熱器管子的表面上，也可用來對普通翅片的底面進行補充加固。混合板式換熱器是什么？云南石化換熱器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南石化換熱器,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140090136719/2933696.jpg"></div><p> 2）、地下土壤越深，地下水越豐富。有些地區(qū)還存在著地下水流動情況，這樣就產(chǎn)生了對流換熱，促使熱量擴散。深度越深，循環(huán)水所走的路徑越長，水力損失越大。圖1-7所示，40mC井與60mB井的壓力損失相同是因為C井比B井多走了20m的水平管。基本上每米管路的壓力損失為75Pa。不同深度鉆孔，循環(huán)水在管路內(nèi)所走的長度不同，換熱程度也不同，從而進出口的溫差也不同。從圖1-8可知，20m深的鉆井溫差很小，很容易受到室外環(huán)境的影響。40m深鉆孔的溫差勉強符合機組的運行狀態(tài)點。鉆井深在60m~100m之間，進出口溫差在℃～5℃之間，正處在機組運行參數(shù)范圍之內(nèi)。進出口溫差以直線的軌跡隨鉆孔深度的增加而遞增。遞增直線方程為：Y=。當鉆井深度為200m時，進出口溫差就上升到℃。此時溫差嚴重偏離機組運行狀態(tài)點。若減小溫差，有效的辦法就是提高循環(huán)水的流速。但進一步加大管路的水利損失，會造成能量的浪費。從而，根據(jù)實際工程情況，推薦鉆孔深在60m~100m之間。圖1-9是通過比較實驗測試熱阻與理論模型計算熱阻，反應深度對土壤導熱系數(shù)測試結(jié)果的影響程度。各鉆孔的實驗與理論熱阻誤差非常小，在圖1-9上兩者基本上是重合的。遼寧醫(yī)藥換熱器上海生產(chǎn)換熱器的廠家有哪些？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南石化換熱器,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140093466797/9343746.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，其導熱系數(shù)比48h內(nèi)所有數(shù)據(jù)算出的導熱系數(shù)要大。這表明：對于一般的測試環(huán)境條件，為了獲得更準確的導熱系數(shù)，至少忽略**小時的數(shù)據(jù)，這些數(shù)據(jù)會導致導熱系數(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> 和換熱器使用中在壁兩側(cè)形成的污垢層，金屬壁的熱阻相對較小。增加流體的流速和擾動性，可減薄邊界層，降低熱阻提高給熱系數(shù)。但增加流體流速會使能量消耗增加，故設計時應在減小熱阻和降低能耗之間作合理的協(xié)調(diào)。為了降低污垢的熱阻，可設法延緩污垢的形成，并定期清洗傳熱面。一般換熱器都用金屬材料制成，其中碳素鋼和低合金鋼大多用于制造中、低壓換熱器；不銹鋼除主要用于不同的耐腐蝕條件外，奧氏體不銹鋼還可作為耐高、低溫的材料；銅、鋁及其合金多用于制造低溫換熱器；鎳合金則用于高溫條件下；非金屬材料除制作墊片零件外，有些已開始用于制作非金屬材料的耐蝕換熱器，如石墨換熱器、氟塑料換熱器和玻璃換熱器等。折疊機組構(gòu)造換熱機組是一次熱網(wǎng)與用戶之間的直接橋梁，從一次熱網(wǎng)得到熱量，自動連續(xù)地轉(zhuǎn)換為用戶需要的生活用水及采暖用水，適用于空調(diào)（供暖供冷），采暖，生活用水（洗?。┗蚱渌麚Q熱回路（如地板供熱，工藝水冷卻等）。換熱機組由板式換熱器、循環(huán)水泵、補水泵、過濾器、閥門、機組底座、熱計量表、配電箱、電子儀表及自控系統(tǒng)等組成。熱源的蒸汽或高溫水從機組的一次側(cè)供水口進入板式換熱器，二次側(cè)的低溫回水經(jīng)過過濾器除污。上海板換機械設備有限公司提供多種類型的板式換熱器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南石化換熱器,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140089433594/4910143.jpg"></div><p> 為適應多種腐蝕性較強的介質(zhì)，波紋板片材料有：工業(yè)純鈦TAl，用于海水或其它腐蝕性介質(zhì)；多種不銹鋼，用j=淡水、飲用水、油類及其它非腐蝕性介質(zhì)。在波紋板片的密封槽上裝有密封墊片，密封墊片設計成雙道密封結(jié)構(gòu)，并且有信號孔。當介質(zhì)如從一道密封泄露時，可從信號孑L泄出設備之外，便能及早發(fā)現(xiàn)問題加以解決，不會造成兩種介質(zhì)的混合。密封墊片可根據(jù)不同的流體和操作溫度選用不同的膠種。板片材質(zhì)：*不銹鋼SUS304SUS316L凈水、河川水、食物油、礦物油*工業(yè)純鈦及鈦鈀合金TitaniumandPalladium海水、鹽水、鹽化物*哈氏合金HadtelloyAlloy濃***、鹽酸、磷酸*鎳Nickel高溫高濃度苛性鈉墊片材質(zhì)：**橡膠NBR水、海水、礦物油、鹽水一15--1IO~C*高溫橡膠BNBR-高溫礦物油、高溫水15--140~C*三元乙丙EPDM熱水、水蒸氣、酸、堿一25--150~C*氟橡膠Viton／FluorineRubber強酸、強堿、礦物油、潤滑脂和燃油等一5--180~C*氯丁橡膠NEOPRENE酸、堿、礦物油、低分子量脂烴一35--130~C*硅橡膠SiliconRubber高溫和某些腐蝕性介質(zhì)一65-200℃先進的板式設計理念：*板片帶有增壓的新型導流區(qū)設計是在板片導流區(qū)流速較大的地方采用多路通道增加壓力，使整張板片中的流速達到均等。板式換熱器滿足您的換熱需求。海南換熱器電話</p><p style="text-indent:25px">板式換熱器產(chǎn)品介紹。云南石化換熱器</p><p> 板式換熱器是由框架、傳熱板片組及夾緊螺栓等主要部件組成?？蚣馨ㄒ粋€固定壓緊板和一個活動壓緊板，由上導桿與下導桿支承，在另端有一支柱。壓制成的波紋板片懸掛在兩板之間的上導桿上，移動活動壓緊板將板片組壓緊，再用一組夾緊螺柱將固定壓緊板和活動壓緊板夾緊至一定尺寸。兩種介質(zhì)經(jīng)固定(或活動)壓緊板上法蘭孔流入由波紋板片組成的各自通道，熱交換后介質(zhì)再由固定(或活動)壓緊板上的法蘭孔流出。同定壓緊板、活動壓緊板、支柱及導桿均為低碳鋼?？紤]到用戶的多種使用要求，框架設計有多種型式，主要有雙支撐框架式和常用的落地式等，也可根據(jù)用戶的要求更改框架的型式。傳熱板片是板式換熱器的主要部件之一。波紋板片通過一次壓制成型，合理的波紋設計增加了板片有效傳熱面積，使流體順波紋通過時形成湍流，強化了傳熱過程。裝配時波紋與波紋相交成大量接觸抗點，提高了板片組的剛度，因此能承受較高的壓力。每塊板片作為一個傳熱面，在密封墊的作用下，板片的兩側(cè)分別有冷熱介質(zhì)通過，進行換熱。板片上有四個分配液體的孑L，孑L及板片四周裝有密封墊片，限制介質(zhì)在板片組內(nèi)流動，各板片形成平行的通道，流經(jīng)里面的兩種介質(zhì)，作換熱效果的方向流動。云南石化換熱器</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2843277.html</p></div></div></div></div></div><div id="3tg8tvn" class="page-right twoColRt"><div id="fpm23v9" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="edasuwy" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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