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class="home-main container clearfix"><div id="lkrjlsh" class="twoCol"><div id="lldfwik" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</a>?<a 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、制冷空調設備</a>?云南經濟耐用換熱器工廠服務為先上海板換機械設備供應</p><div id="ch7xhjl" class="leftbox clearfix"><h1>云南經濟耐用換熱器工廠服務為先上海板換機械設備供應</h1><div id="gvxeg8c" class="proBig"><div id="jtvxz7l" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221258627441406/2534940.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="shog3xu" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221258627441406/2534940.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yiarypw" 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>產品關鍵詞：</span>云南經濟耐用換熱器工廠,換熱器</p><p><span>***更新：</span>2021-01-27 07:05:43</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="88asub7" 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="ymj2lfm" class="page-proshow02"><p class="title">詳細說明</p><div id="x3hjrdf" class="box"><p><p> 流速在～之間時，壓差大約在。實驗數(shù)據進過二次擬合，獲得流速與進出口壓差的關系式：Y=。而且，這個流速段的單位鉆井傳熱率都大于100W。流速在1m/s～，傳熱率基本上達到比較大狀態(tài)。二次擬合方程為：Y=。而流速大于時，埋地換熱器的傳熱率已經開始下降。所以綜合考慮，在設計埋地換熱器時，循環(huán)水的流速應選～之間。鉆井深度雖然對埋地換熱器的鉆井深度沒有嚴格要求，云南經濟耐用換熱器工廠，但受到很多因素的制約，如：土壤結構，土壤熱物性，工程要求等。井深度較淺傳熱性能不夠好，而且也容易受環(huán)境的影響。井鉆得太深施工難度較大，很容易碰到巖石層，工程造價較大。目前**深的鉆井大約在200m左右。本文七口井試驗井的地下土質基本上都由細砂組成。施工簡單，打一口井工期較短，土壤傳熱性能較好。本節(jié)就針對鉆井深度，研究其對傳熱率、導熱系數(shù)、熱阻、壓差與平均溫度的影響[9]，為工程實踐提供參考依據。圖1-7～1－11表明鉆井深度不同，其它因素（如：傳熱系數(shù)，云南經濟耐用換熱器工廠、壓差與導熱系數(shù)等）都會隨之改變。導熱系數(shù)隨深度的增加而遞增，傳熱率以拋物線的軌跡在增加。拋物線方程為：Y=。主要原因有：（1）、不同深度土壤的土質與結構不同，熱物性也不相同，云南經濟耐用換熱器工廠，從而導熱系數(shù)與傳熱率都有一定的差異；?？刹鹦栋迨綋Q熱器用途。云南經濟耐用換熱器工廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南經濟耐用換熱器工廠,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221258627441406/2534940.jpg"></div><p> 或稱小孔腐蝕、點蝕。5、縫隙腐蝕，在金屬表面的縫隙和被覆蓋的部位會產生劇烈的縫隙腐蝕。6、沖刷腐蝕，沖刷腐蝕是由于介質和金屬表面之間的相對運動而使腐蝕過程加速的一種腐蝕。6、晶間腐蝕，晶間腐蝕是優(yōu)先腐蝕金屬或合金的晶界和晶界附近區(qū)域,而晶粒本身腐蝕比較小的一種腐蝕。7、應力腐蝕破裂和腐蝕疲勞是在一定的金屬一介質體系內,由于腐蝕和拉應力的共同作用造成的材料斷裂。8、氫破壞，金屬在電解質溶液中,由于腐蝕、酸洗、陰極保護或電鍍,可以產生因滲氫而引起的破壞。三、防腐方法：緩蝕劑、電化學保護1、緩蝕劑，以鉻酸鹽為主要成分的緩蝕劑是冷卻水系統(tǒng)常用的,酸根離子是一種陽極(過程)***劑,當它與合適的陰極***劑組合時,能得到令人滿意而又經濟的防腐蝕效果。鉻酸鹽-鋅--聚磷酸鹽:聚磷酸鹽的使用是由于它是具有清潔金屬表面的作用,有緩蝕能,聚磷酸鹽可以部分轉成正磷酸鹽,它們也可以同鈣生成大的膠體陽離子,***陰極過程。鉻酸鹽-鋅--膦酸鹽:這種方法用膦酸鈉代替聚酸鹽外與上一種方法相似,氨基甲叉磷酸鹽也可以用于比為聚磷酸鹽所規(guī)定的pH值要高的場合。氨基甲叉膦酸鹽可以防止水垢,即使pH值為9也能控制鈣鹽的沉淀。湖南供暖換熱器代理板式換熱器怎么拆開清洗？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南經濟耐用換熱器工廠,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140087695312/4361334.jpg"></div><p> 自60年代開始，為了適應高溫和高壓條件下的換熱和節(jié)能的需要，典型的管殼式換熱器也得到了進一步的發(fā)展。70年代中期，為了強化傳熱，在研究和發(fā)展熱管的基礎上又創(chuàng)制出熱管式換熱器。換熱器中流體的相對流向一般有順流和逆流兩種。順流時，入口處兩流體的溫差比較大，并沿傳熱表面逐漸減小，至出口處溫差為**小。逆流時，沿傳熱表面兩流體的溫差分布較均勻。在冷、熱流體的進出口溫度一定的條件下，當兩種流體都無相變時，以逆流的平均溫差比較大順流**小。在完成同樣傳熱量的條件下，采用逆流可使平均溫差增大，換熱器的傳熱面積減??；若傳熱面積不變，采用逆流時可使加熱或冷卻流體的消耗量降低。前者可節(jié)省設備費，后者可節(jié)省操作費，故在設計或生產使用中應盡量采用逆流換熱。當冷、熱流體兩者或其中一種有物相變化(沸騰或冷凝)時，由于相變時只放出或吸收汽化潛熱，流體本身的溫度并無變化，因此流體的進出口溫度相等，這時兩流體的溫差就與流體的流向選擇無關了。除順流和逆流這兩種流向外，還有錯流和折流等流向。在傳熱過程中，降低間壁式換熱器中的熱阻，以提高傳熱系數(shù)是一個重要的問題。熱阻主要來源于間壁兩側粘滯于傳熱面上的流體薄層(稱為邊界層)。</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。兩種介質經固定(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，也可根據用戶的要求更改框架的型式。傳熱板片是板式換熱器的**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，板片的兩側分別有冷熱介質通過，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，限制介質在板片組內流動，各板片形成平行的通道，流經里面的兩種介質，作換熱效果的方向流動。焊接式板式換熱器方便清洗嗎？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南經濟耐用換熱器工廠,換熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140089033203/1342887.jpg"></div><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。兩種介質經固定(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。考慮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，板片的兩側分別有冷熱介質通過，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，限制介質在板片組內流動，各板片形成平行的通道，流經里面的兩種介質，作換熱效果的方向流動。歡迎選購上海板換機械設備有限公司板式換熱器產品。湖南供暖換熱器代理</p><p style="text-indent:25px">板式換熱器板片型號有哪些？云南經濟耐用換熱器工廠</p><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?；旧厦棵坠苈返膲毫p失為75Pa。不同深度鉆孔，循環(huán)水在管路內所走的長度不同，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。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。云南經濟耐用換熱器工廠</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3032547.html</p></div></div></div></div></div><div id="uoqn7j8" class="page-right twoColRt"><div id="azrolsu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3g9ikri" 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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