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href="http://www.cdcfah.com/cp/third-crsbje_qtcrsbpw/">其他傳熱設(shè)備</a>?河北空氣預(yù)熱器生產(chǎn)商上海板換機(jī)械設(shè)備供應(yīng)</p><div id="2lvf7pz" class="leftbox clearfix"><h1>河北空氣預(yù)熱器生產(chǎn)商上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="foq2vsp" class="proBig"><div id="vjbl9bt" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8f8khel" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="7xminjq" 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>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>河北空氣預(yù)熱器生產(chǎn)商</p><p><span>***更新：</span>2020-05-25 01:43:35</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="hgsu9v8" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海板換機(jī)械設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>張?jiān)浦?/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(jī): </span>021-57247534</p><p><span>地址: </span>山陽(yáng)鎮(zhèn)山寧路99號(hào)</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="qolnsoa" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="g8pet8y" class="box"><p><p> 一般各自廠家根據(jù)自己的板型都有自己的選型軟件，河北空氣預(yù)熱器生產(chǎn)商。國(guó)際上通用的軟件有HTRI，HTFS等。通用的計(jì)算軟件公開(kāi)的很少，國(guó)內(nèi)一些網(wǎng)站如換熱支持網(wǎng)站提供了提供了板式換熱器的在線計(jì)算軟件，可供參考使用。板式換熱器常見(jiàn)故障編輯外漏主要表現(xiàn)為滲漏（量不大，水滴不連續(xù)）和泄漏（量較大，水滴連續(xù)）。外漏出現(xiàn)的主要部位為板片與板片之間的密封處、板片二道密封泄漏槽部位以及端部板片與壓緊板內(nèi)側(cè)，河北空氣預(yù)熱器生產(chǎn)商。串液主要特征為壓力較高一側(cè)的介質(zhì)串入壓力較低一側(cè)的介質(zhì)中，系統(tǒng)中會(huì)出現(xiàn)壓力和溫度的異常。如果介質(zhì)具有腐蝕性，還可能導(dǎo)致板式換熱器密封墊片的腐蝕。串液通常發(fā)生在導(dǎo)流區(qū)域或者二道密封區(qū)域處。壓降大介質(zhì)進(jìn)、出口壓降超過(guò)設(shè)計(jì)要求，甚至高出設(shè)計(jì)值許多倍，嚴(yán)重影響系統(tǒng)對(duì)流量和溫度的要求。在供暖系統(tǒng)中，若熱側(cè)壓降過(guò)大，則一次側(cè)流量將嚴(yán)重不足，即熱源不夠，導(dǎo)致二次側(cè)出溫度不能滿足要求。供熱溫度不能滿足要求主要特征是出口溫度偏低，達(dá)不到設(shè)計(jì)要求，河北空氣預(yù)熱器生產(chǎn)商。面積相同換熱量的板式換熱器*為管殼式換熱器的1/5。3、容易清洗拆裝方便：板式換熱器靠夾緊螺栓將夾固板板片夾緊，因此拆裝方便，隨時(shí)可以打開(kāi)清洗，同時(shí)由于板面光潔，湍流程度高，不易結(jié)垢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北空氣預(yù)熱器生產(chǎn)商" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg"></div><p> 防止空預(yù)器堵灰、腐蝕措施適應(yīng)范圍：空預(yù)器堵灰、腐蝕嚴(yán)重的鍋爐技術(shù)原理與要點(diǎn)：空預(yù)器綜合冷端溫度（空預(yù)器進(jìn)口空氣溫度與煙氣出口平均溫度之和）對(duì)冷端結(jié)露和腐蝕、堵灰影響較大。空預(yù)器出口綜合冷端溫度如低于酸**溫度，空預(yù)器冷端很快就會(huì)積灰，一周內(nèi)就形成極難去除的板結(jié)垢。冷端溫度目標(biāo)值應(yīng)根據(jù)“綜合冷端溫度與燃料含硫量變化曲線”確定，并根據(jù)燃用煤種性質(zhì)進(jìn)行修正，除收到基全硫（St,ar）＜，燃用其他煤種原則上不要低于130℃。煙氣酸**主要受燃煤中的硫分、灰分、灰成分（特別是灰中Ca含量）、水分和發(fā)熱量的影響，灰分和灰中Ca含量越高，酸**越低；硫分和水分越高，酸**越高。由于不同酸**計(jì)算經(jīng)驗(yàn)公式計(jì)算出的數(shù)值偏差較大，對(duì)燃用煤種相對(duì)穩(wěn)定的鍋爐，應(yīng)通過(guò)調(diào)整冷端溫度觀察空預(yù)器差壓變化趨勢(shì)等方法，確定該煤種對(duì)應(yīng)的目標(biāo)綜合溫度控制值，并根據(jù)空預(yù)器煙氣側(cè)差壓變化情況及時(shí)提高空預(yù)器冷端溫度控制值。為提高控制精度和減輕運(yùn)行人員調(diào)整工作量，空預(yù)器綜合冷端溫度控制目標(biāo)值建議通過(guò)原煙氣SO2濃度、燃煤量、煙氣量等參數(shù)實(shí)時(shí)計(jì)算并參與自動(dòng)調(diào)節(jié)。機(jī)組啟/停階段要注重冷端溫度控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北空氣預(yù)熱器生產(chǎn)商" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220410559414062/9489232.jpg"></div><p> 按制造廠提供的夾緊尺寸重新夾緊設(shè)備，尺寸應(yīng)均勻一致，壓緊尺寸的偏差應(yīng)不大于±0．2N(mm)(N。為板片總數(shù)），兩壓緊板間的平行度應(yīng)保持在2mm以內(nèi)。②在外漏部位上做好標(biāo)記，然后換熱器解體逐一排查解決，重新裝配或更換墊片和板片。③將開(kāi)換熱器解體，對(duì)板片變形部位進(jìn)行修理或者更換板片。在沒(méi)有板片備件時(shí)可將變形部位板片暫時(shí)拆除后重新組裝使用。④重新組裝拆開(kāi)的板片時(shí)，應(yīng)清潔板面，防止污物粘附著于墊片密封面。板式換熱器串液產(chǎn)生原因：①由于板材選擇不當(dāng)導(dǎo)致板片腐蝕產(chǎn)生裂紋或穿孔。②操作條件不符合設(shè)計(jì)要求。③板片冷沖壓成型后的殘余應(yīng)力和裝配中夾緊尺寸過(guò)小造成應(yīng)力腐蝕。④板片泄漏槽處有輕微滲漏，造成介質(zhì)中有害物質(zhì)（如C1）濃縮腐蝕板片。形成串液?，F(xiàn)場(chǎng)分析發(fā)現(xiàn)，系統(tǒng)運(yùn)行溫度、流量和濃度等工藝參數(shù)均超出設(shè)計(jì)條件，使用溫度遠(yuǎn)超出材料的適用范圍。采用飽和蒸汽作為一次側(cè)熱源的板式換熱器在運(yùn)行過(guò)程中容易發(fā)生板片腐蝕。導(dǎo)致產(chǎn)品串液。這是由于蒸汽溫度較高，設(shè)備運(yùn)行中很容易造成橡膠密封墊在高溫下失效，引起蒸汽外漏并在二道密封區(qū)域急速冷凝。隨著外漏的不斷進(jìn)行，冷凝殘液越聚越多，局部形成cl質(zhì)量濃度較高區(qū)域。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北空氣預(yù)熱器生產(chǎn)商" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405032539062/8800983.jpg"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/30327.html</p></div></div></div></div></div><div id="wv2li82" class="page-right twoColRt"><div id="7ikrolx" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="f7e2tvc" 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" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="hwnkw2u" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" 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