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src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140087695312/4361334.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="akhz7ho" 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>江西換熱器電話</p><p><span>***更新：</span>2020-05-24 09:39:43</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="v3e2kgo" 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="7xzgikj" class="page-proshow02"><p class="title">詳細說明</p><div id="cw3rl8v" class="box"><p><p> 為了適應(yīng)發(fā)展的需要，中國對某些種類的換熱器已經(jīng)建立了標準，形成了系列。完善的換熱器在設(shè)計或選型時應(yīng)滿足以下基本要求：（1）合理地實現(xiàn)所規(guī)定的工藝條件；（2）結(jié)構(gòu)安全可靠；（3）便于制造、安裝、操作和維修；（4）經(jīng)濟上合理。浮頭式換熱器的一端管板與殼體固定，而另一端的管板可在殼體內(nèi)自由浮動，殼體和管束對膨脹是自由的，故當(dāng)兩張介質(zhì)的溫差較大時，管束和殼體之間不產(chǎn)生溫差應(yīng)力。浮頭端設(shè)計成可拆結(jié)構(gòu)，使管束能容易的插入或抽出殼體。（也可設(shè)計成不可拆的）。這樣為檢修、清洗提供了方便。但該換熱器結(jié)構(gòu)較復(fù)雜，而且浮動端小蓋在操作時無法知道泄露情況。因此在安裝時要特別注意其密封，江西換熱器電話。浮頭換熱器的浮頭部分結(jié)構(gòu)，按不同的要求可設(shè)計成各種形式，除必須考慮管束能在設(shè)備內(nèi)自由移動外，江西換熱器電話，還必須考慮到浮頭部分的檢修，江西換熱器電話、安裝和清洗的方便。在設(shè)計時必須考慮浮頭管板的外徑Do。該外徑應(yīng)小于殼體內(nèi)徑Di，一般推薦浮頭管板與殼體內(nèi)壁的間隙b1=3~5mm。這樣，當(dāng)浮頭出的鉤圈拆除后，即可將管束從殼體內(nèi)抽出。以便于進行檢修、清洗。浮頭蓋在管束裝入后才能進行裝配，所以在設(shè)計中應(yīng)考慮保證浮頭蓋在裝配時的必要空間。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西換熱器電話" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140087695312/4361334.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)不低于國家標準GB16409《板式換熱器》或行業(yè)標準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)標準的規(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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西換熱器電話" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221140089033203/1342887.jpg"></div><p> 鉤圈對保證浮頭端的密封、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、制造技術(shù)的發(fā)展，以及長期以來使用經(jīng)驗的積累，鉤圈的結(jié)構(gòu)形式也得到了不段的改進和完善。鉤圈一般都為對開式結(jié)構(gòu)，要求密封可靠，結(jié)構(gòu)簡單、緊湊、便于制造和拆裝方便。浮頭式換熱器以其高度的可靠性和***的適應(yīng)性，在長期使用過程中積累了豐富的經(jīng)驗。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。折疊優(yōu)缺點優(yōu)點：（1）管束可以抽出，以方便清洗管、殼程[4]；（2）介質(zhì)間溫差不受限制；（3）可在高溫、高壓下工作，一般溫度小于等于450度，壓力小于等于；（4）可用于結(jié)垢比較嚴重的場合；（5）可用于管程易腐蝕場合。缺點：（1）小浮頭易發(fā)生內(nèi)漏；（2）金屬材料耗量大，成本高20%；（3）結(jié)構(gòu)復(fù)雜制造工藝選取換熱設(shè)備的制造材料及牌號，進行材料的化學(xué)成分檢驗，機械性能合格后，對鋼板進行矯形，方法包括手工矯形，機械矯形及火焰矯形。備料－－劃線－－切割－－邊緣加工（探傷）－－成型－－組對－－焊接－－焊接質(zhì)量檢驗－－組裝焊接－－壓力試驗質(zhì)量檢驗化工設(shè)備不僅在制造之前對原材料進行檢驗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西換熱器電話" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637221258627558593/2064816.jpg"></div></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/26370.html</p></div></div></div></div></div><div id="f2ubyug" class="page-right twoColRt"><div 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