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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="ztvsuoa" class="twoCol"><div id="7i2rols" 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(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_crsbje/">傳熱設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-crsbje_qtcrsbpw/">其他傳熱設(shè)備</a>?湖北石化空氣預熱器上海板換機械設(shè)備供應(yīng)</p><div id="nxp27b2" class="leftbox clearfix"><h1>湖北石化空氣預熱器上海板換機械設(shè)備供應(yīng)</h1><div id="ptfskm7" class="proBig"><div id="cbtqi3f" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031435547/8438841.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ispm77l" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031435547/8438841.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="oskhta4" 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>湖北石化空氣預熱器,空氣預熱器</p><p><span>***更新：</span>2020-08-23 19:06:26</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="3v4y8rv" 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="xrtln3n" class="page-proshow02"><p class="title">詳細說明</p><div id="3mlm72d" class="box"><p><p> 在選擇傳熱元件時，湖北石化空氣預熱器，要考慮到用戶的實際情況，從設(shè)備長期安全穩(wěn)定運行的角度出發(fā)，適應(yīng)煤種在一定范圍內(nèi)的變化，確保在使用過程中不堵灰，保持較低的排煙溫度，保證在長時間的運行過程中，鍋爐的效率保持在較高水平。而不能*考慮單一設(shè)計煤種，在燃料變化后，無法滿足機組經(jīng)濟、穩(wěn)定和安全運行的需要。元件板型的選擇需同時考慮傳熱效果、流通阻力和堵灰可能三個因素。采用傳熱效果好的傳熱元件能降**造成本，但是不一定流通阻力小或耐堵灰，造成運行成本上升。例如某公司在預熱器冷段采用HS7、HS8等DU系列波形元件，雖然預熱器轉(zhuǎn)子重量變輕，但是當燃料灰分變多，或用于SCR預熱器時，很容易造成堵灰，使阻力上升，湖北石化空氣預熱器，湖北石化空氣預熱器。傳熱效果和流通阻力往往構(gòu)成一對矛盾，因為提高換熱效果是通過加強氣流通道的局部紊流狀況，即加大換熱表面波紋密度或傾斜角，但這種方式也同時加大了流通阻力系數(shù)。板式空氣預熱器方便清洗嗎？湖北石化空氣預熱器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北石化空氣預熱器,空氣預熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031435547/8438841.jpg"></div><p> 過剩空氣系數(shù)是燃料燃燒時實際空氣需要量與理論空氣需要量之比值，用“α”表示。計算公式：α＝()其中：，O2實測值為儀器測量煙道中的O2值舉例：鍋爐測試時O2實測值為13%，計算出的過剩空氣系數(shù)α＝(％)＝國標規(guī)定過?？諝庀禂?shù)應(yīng)按α＝（燃煤鍋爐），α＝（燃油燃氣鍋爐）進行折算。舉例：燃煤鍋爐，鍋爐測試時O2實測值為13%，SO2排放值500ppm，計算出的過剩空氣系數(shù)α＝，那么根據(jù)國標規(guī)定，折算后的SO2排放濃度＝SO2實測值×（α實際值/α國標值）＝500ppm×（）=722ppm舉例：燃油燃氣鍋爐，鍋爐測試時O2實測值為13%，SO2排放值500ppm，計算出的過?？諝庀禂?shù)α＝，那么根據(jù)國標規(guī)定，折算后的SO2排放濃度＝SO2實測值×（α實際值/α國標值）＝500ppm×（）=1083ppm空預器漏風依據(jù)下列各式計算：α=21/21-o2Δα=α2-α1δ=。湖北石化空氣預熱器板式空氣預熱器不易積灰結(jié)垢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北石化空氣預熱器,空氣預熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220414500673828/8758232.jpg"></div><p> 技術(shù)領(lǐng)域本實用新型涉及電站鍋爐空預器運行安全技術(shù)領(lǐng)域，特別涉及一種有效緩解空預器***氫銨堵塞的聯(lián)合系統(tǒng)。背景技術(shù)：目前，部分燃煤鍋爐排煙溫度低于設(shè)計值，導致空氣預熱器冷端綜合溫度降低、***氫銨腐蝕及堵塞加劇、煙氣余熱的能級降低、引風機電耗增大等問題。尤其針對裝設(shè)有mggh系統(tǒng)的機組，單純利用空氣預熱器出口的煙氣余熱，不足以將脫硫塔出口的煙氣溫度提升至設(shè)計值，需另外投入大量的輔助蒸汽來維持煙囪入口煙氣溫度。（三）技術(shù)實現(xiàn)要素：本實用新型為了彌補現(xiàn)有技術(shù)的不足，提供了一種結(jié)構(gòu)簡單、設(shè)計合理的有效緩解空預器***氫銨堵塞的聯(lián)合系統(tǒng)。本實用新型是通過如下技術(shù)方案實現(xiàn)的：一種有效緩解空預器***氫銨堵塞的聯(lián)合系統(tǒng)，包括安裝在空氣預熱器出口至mggh煙氣冷卻器進口煙道之間的前置煙冷器，用來吸收煙氣余熱；安裝在送風機出口冷風道內(nèi)的蒸汽暖風器，用來加熱鍋爐送風；安裝在蒸汽暖風器出口至空氣預熱器入口風道之間的水媒式暖風器，用來進一步提高鍋爐送風溫度。本實用新型采用前置煙冷器聯(lián)合水媒式暖風器和蒸汽暖風器共同加熱鍋爐送風。蒸汽暖風器采用旋轉(zhuǎn)式，可根據(jù)環(huán)境溫度和機組負荷進行調(diào)整，減少風機電耗。前置煙冷器回收部分煙氣余熱。</p><p> 進汽端比疏水端提高了約300mm左右，可以緩解了暖風器泄漏幾率。在暖風器處都增加了玻璃觀察窗，以方便運行過程中檢查暖風器是否內(nèi)漏。制粉系統(tǒng)投運時盡量滿足著火能量機組每次停運時，在條件允許的情況下，盡量將安裝有等離子點火裝置的磨煤機對應(yīng)煤斗燒空，并在下次機組啟動前將該煤斗配上發(fā)熱量大于4500kcal/kg，揮發(fā)份較高的煤種。同時等離子磨煤機啟動前應(yīng)保證二次風溫大于200℃，以減少制粉系統(tǒng)啟動初期大量不完全燃燒產(chǎn)物的生成，從而抑止空預器堵灰的發(fā)生。加強省煤器輸灰系統(tǒng)綜合治理鍋爐日常運行中加強省煤器灰斗料位的監(jiān)視和控制，一旦發(fā)現(xiàn)高料位，立即聯(lián)系檢修進行處理。同時利用停爐機會，檢查省煤器灰斗真實料位，徹底疏通輸灰管線。對空預器要進行定期吹灰且吹灰蒸汽要保證足夠的過熱度吹灰至少每8小時進行一次，如果發(fā)現(xiàn)空預器差壓有上升趨勢，應(yīng)縮短吹灰時間間隔。吹灰程序控制必須采取疏水溫度控制，不能通過時間簡單判斷疏水是否干凈，必要時進行疏水管路改造以確?？疹A器吹灰效果。加強吹灰閥門的綜合治理每次停爐后對空預器吹灰進汽閥和吹灰***進行檢查處理，保證運行中不發(fā)生濕蒸汽泄漏到空預器換熱元件上。板式空氣預熱器廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北石化空氣預熱器,空氣預熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg"></div><p> 一般各自廠家根據(jù)自己的板型都有自己的選型軟件。國際上通用的軟件有HTRI，HTFS等。通用的計算軟件公開的很少，國內(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算軟件，可供參考使用。板式換熱器常見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)。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，還可能導致板式換熱器密封墊片的腐蝕。串液通常發(fā)生在導流區(qū)域或者二道密封區(qū)域處。壓降大介質(zhì)進、出口壓降超過設(shè)計要求，甚至高出設(shè)計值許多倍，嚴重影響系統(tǒng)對流量和溫度的要求。在供暖系統(tǒng)中，若熱側(cè)壓降過大，則一次側(cè)流量將嚴重不足，即熱源不夠，導致二次側(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，達不到設(shè)計要求。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，隨時可以打開清洗，同時由于板面光潔，湍流程度高，不易結(jié)垢。板式空氣預熱器是全焊接密封結(jié)構(gòu)。湖北石化空氣預熱器</p><p style="text-indent:25px">板式空氣預熱器維修廠家有哪些？湖北石化空氣預熱器</p><p> 空預器吹灰器故障、減壓閥調(diào)節(jié)性能不好，蒸汽帶水，不但減弱吹灰效果，嚴重時還會在高溫下與積灰泥化板結(jié)。吹灰蒸汽閥門不嚴泄露鍋爐空預器吹灰進汽閥門不嚴密，導致水蒸氣漏入空預器內(nèi)部，導致空預器堵塞。故此，在每次停爐時，對空預器吹灰進汽閥進行檢查處理，能有效避免此原因?qū)е碌亩氯l(fā)生?？疹A器水沖洗不徹底鍋爐每次停爐后，都要進行空預器水沖洗，沖洗過程一定要徹底，可采用透光法等手段進行檢查，避免沖洗不徹底。否則會在極短時間內(nèi)加重堵塞，失去沖洗的意義。空預器壓差偏大，而在實行超低排放后，這一現(xiàn)象更加突出。高負荷時達到，吹灰器投運后效果不明顯，原因分析如下：空預器堵塞燃煤鍋爐爐膛內(nèi)煙氣中的SO2約有％～％被氧化成SO3。加裝SCR系統(tǒng)后，催化劑在把NOx還原成Ｎ２的同時，將約％的SO2氧化成SO3。SCR反應(yīng)器出口煙氣中存在的未反應(yīng)的逃逸氨（NH３）、SO３及水蒸氣反應(yīng)生成***氫氨或***氨：ＮＨ３＋ＳＯ３＋Ｈ２Ｏ→ＮＨ４ＨＳＯ４２ＮＨ３＋ＳＯ３＋Ｈ２Ｏ→（ＮＨ４）２ＳＯ４當煙氣中的ＮＨ３含量遠高于SO3濃度時，主要生成干燥的粉末狀***氨，不會對空預器產(chǎn)生粘附結(jié)垢。當煙氣中的SO3濃度高于逃逸氨濃度時，主要生成***氫氨（ABS）。湖北石化空氣預熱器</p><p style="text-indent:25px">上海板換機械設(shè)備有限公司是一家化工設(shè)備、環(huán)保設(shè)備及配件的制造加工及銷售，機械設(shè)備設(shè)計安裝（除特種設(shè)備外），在金山區(qū)山陽鎮(zhèn)山寧路99號內(nèi)從事自有房屋租賃?！疽婪毥?jīng)批準的項目，經(jīng)相關(guān)部門批準后方可開展經(jīng)營活動】。主要生產(chǎn)制造的產(chǎn)品包括可拆卸板式熱交換器、寬通道全焊接板式熱交換器、煙氣冷凝器、板式空氣預熱器、TP焊接換熱器、板框式熱交換器等。的公司，創(chuàng)建于2005-11-30。公司自2005-11-30成立以來，投身于[ "板式換熱器機組", "可拆式板式換熱器", "焊接式板式換熱器", "板式空氣預熱器" ]，是機械及行業(yè)設(shè)備的主力軍。公司繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實現(xiàn)轉(zhuǎn)型再突破。上海板換創(chuàng)始人張曼麗，始終關(guān)注客戶，以優(yōu)化創(chuàng)新的科技，竭誠為客戶提供極好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1015840.html</p></div></div></div></div></div><div id="7mlxzra" class="page-right twoColRt"><div id="ysz7v88" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3fc8nk9" 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配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="wqnfhzo" 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" 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