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class="home-main container clearfix"><div id="ok81mz4" class="twoCol"><div id="ny4xliz" class="page-proshow clearfix"><p class="current"> 當(dāng)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>?吉林安全可靠空氣預(yù)熱器哪家便宜服務(wù)為先上海板換機械設(shè)備供應(yīng)</p><div id="doydw2v" class="leftbox clearfix"><h1>吉林安全可靠空氣預(yù)熱器哪家便宜服務(wù)為先上海板換機械設(shè)備供應(yīng)</h1><div id="6dd3y1u" class="proBig"><div id="rcxqgut" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220414500673828/8758232.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ijxvf2f" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220414500673828/8758232.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bihw7ji" 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>吉林安全可靠空氣預(yù)熱器哪家便宜,空氣預(yù)熱器</p><p><span>***更新：</span>2021-01-17 11:07:36</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="yi8ecv2" 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="2hwruuj" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ae8lobn" class="box"><p><p style="text-indent:25px"> 高壓水沖洗要徹底空預(yù)器沖洗熱段一般采用消防水噴淋，冷端采用高壓水***沖洗，通過抽檢中溫端換熱元件干凈程度以確定沖洗質(zhì)量是否合格，正常兩臺空預(yù)器沖洗合格需要進行60小時左右。沖洗結(jié)束后一定要進行充分干燥，防止啟動時大量灰粒粘貼到換熱元件。SCR**排放后的預(yù)防手段合理控制噴氨量合理控制SCR出口參數(shù)，吉林安全可靠空氣預(yù)熱器哪家便宜，避免過調(diào)。根據(jù)設(shè)計條件，每臺爐SCR系統(tǒng)都有設(shè)計比較大噴氨量。當(dāng)自調(diào)或人工調(diào)整時，應(yīng)當(dāng)注意不要高于此限值，若是自由大量噴氨才能將Nox降低到**排放值，應(yīng)考慮其他方面的影響，不應(yīng)*靠過噴氨量來實現(xiàn)。加強對噴氨格柵均勻性的調(diào)整制定噴氨格柵定期調(diào)整試驗機制，每次檢修或每半年均應(yīng)對噴氨格柵進行一次優(yōu)化，防止噴氨不均勻造成反應(yīng)效率下降，浪費氨氣的同時造成空預(yù)器***氫氨堵塞?？刂瓢碧右轁舛冗\行中加強對氨逃逸濃度的監(jiān)視，發(fā)現(xiàn)氨逃逸濃度異常升高，應(yīng)立即降低噴氨量，查找原因，若因噴口堵塞或脫落，吉林安全可靠空氣預(yù)熱器哪家便宜，應(yīng)及時修復(fù)，避免長時間不均勻運行。定期更換催化劑層建立各爐催化劑臺賬，對催化劑進行全壽命管理，吉林安全可靠空氣預(yù)熱器哪家便宜，及時更換失效的催化劑，保證脫硝反應(yīng)效率。預(yù)防空預(yù)器壓差增大定期工作因脫硝**排放及當(dāng)前脫硝調(diào)節(jié)系統(tǒng)特性問題。板式空氣預(yù)熱器哪家好？吉林安全可靠空氣預(yù)熱器哪家便宜</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林安全可靠空氣預(yù)熱器哪家便宜,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220414500673828/8758232.jpg"></div><p> 在選擇傳熱元件時，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。而不是像某些公司一樣，*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(yù)熱器冷段采用HS7、HS8等DU系列波形元件，雖然預(yù)熱器轉(zhuǎn)子重量變輕，但是當(dāng)燃料灰分變多，或用于SCR預(yù)熱器時，很容易造成堵灰，使阻力上升。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)。本著對用戶負(fù)責(zé)的態(tài)度，在選用波形和煤種的匹配上，在傳熱元件的選擇上的做法是根據(jù)燃料的特性選擇合適的傳熱元件板型，通常在預(yù)熱器熱段和中溫段選擇DU3、DN、DL等波型傳熱元件，匹配從無煙煤到褐煤燃料。吉林安全可靠空氣預(yù)熱器哪家便宜板式空氣預(yù)熱器方便清洗嗎？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林安全可靠空氣預(yù)熱器哪家便宜,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031093750/2889219.jpg"></div><p> 技術(shù)領(lǐng)域本實用新型涉及電站鍋爐空預(yù)器運行安全技術(shù)領(lǐng)域，特別涉及一種有效緩解空預(yù)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(dǎo)致空氣預(yù)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(fēng)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(yù)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(yù)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(yù)器***氫銨堵塞的聯(lián)合系統(tǒng)，包括安裝在空氣預(yù)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(fēng)機出口冷風(fēng)道內(nèi)的蒸汽暖風(fēng)器，用來加熱鍋爐送風(fēng)；安裝在蒸汽暖風(fēng)器出口至空氣預(yù)熱器入口風(fēng)道之間的水媒式暖風(fēng)器，用來進一步提高鍋爐送風(fēng)溫度。本實用新型采用前置煙冷器聯(lián)合水媒式暖風(fēng)器和蒸汽暖風(fēng)器共同加熱鍋爐送風(fēng)。蒸汽暖風(fēng)器采用旋轉(zhuǎn)式，可根據(jù)環(huán)境溫度和機組負(fù)荷進行調(diào)整，減少風(fēng)機電耗。前置煙冷器回收部分煙氣余熱。 </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。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(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、出口壓降超過設(shè)計要求，甚至高出設(shè)計值許多倍，嚴(yán)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(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(yù)熱器廠家有哪些？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林安全可靠空氣預(yù)熱器哪家便宜,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031435547/8438841.jpg"></div><p> 吹灰器先連續(xù)前進至**前端，然后按步退10mm停留52s（轉(zhuǎn)子轉(zhuǎn)動一圈）的方式循環(huán)吹掃，直至退到***端執(zhí)行完一個吹掃流程。一個吹掃流程的用時約。在就地控制柜上停止高壓水泵，在程控作用下，氣動卸荷閥先打開，延時120s后電機停止。關(guān)閉高壓水管路中通往#2機組的閥門和通往A側(cè)空預(yù)器的閥門。打開底部吹灰器蒸汽進口管道上的閥門，接通蒸汽吹灰通道。，對B側(cè)空預(yù)器進行沖洗。注意事項：，可先短時間地進行試驗性沖洗。在檢查機組運行情況正常后，再逐步延長試驗時間，觀察空預(yù)器驅(qū)動電機電流、空預(yù)器阻力、排煙溫度、煙道排污情況及除塵器運行是否正常。觀察和記錄高壓水沖洗時間、壓力、空預(yù)器在沖洗前后機組負(fù)荷、煙氣和空氣側(cè)差壓、送風(fēng)機和引風(fēng)機電流、爐膛壓力、熱風(fēng)和排煙溫度等參數(shù)?！妫瑧?yīng)該及時調(diào)整沖洗側(cè)煙氣流量，提高煙溫，若持續(xù)下降至110℃，則應(yīng)停止在線水沖洗。，即使在觀察到空預(yù)器阻力不再持續(xù)下降時，仍需再沖洗一到兩次。換熱元件沖洗得越干凈，下次沖洗的周期越長，應(yīng)在就地控制箱上將密封風(fēng)機啟動，以保護噴嘴不被堵塞。（進、出口有壓力表），當(dāng)進水壓力小于3bar時，應(yīng)停泵清洗濾網(wǎng)，以免吸水不暢引起泵的異常震動。。板式空氣預(yù)熱器柱狀平板適用于氣體雜質(zhì)較多或工藝清洗要求較高的場合。北京結(jié)構(gòu)緊湊空氣預(yù)熱器工廠</p><p style="text-indent:25px">板式空氣預(yù)熱器怎么維修？吉林安全可靠空氣預(yù)熱器哪家便宜</p><p> ⒎不宜選用單板面積太小的板片，以免板片數(shù)量過多，板間流速偏小，降低傳熱系數(shù)。⒏板式換熱器的換熱介質(zhì)不宜為蒸汽。板式換熱器施工安裝要點編輯⒈換熱器不應(yīng)有變形，緊固件不應(yīng)有松動或其它機械損傷。⒉設(shè)備吊裝時，吊繩不得掛在接管、定位橫梁或板片上。⒊換熱器周圍預(yù)留足夠空間，以便于檢修。⒋冷熱介質(zhì)進出口接管安裝。應(yīng)按照出廠銘牌所規(guī)定方向連接。⒌連接換熱器的管道應(yīng)進行清洗，防止砂石焊渣等雜物進入換熱器，造成堵塞。⒍換熱器應(yīng)以比較大工作壓力的，蒸汽部分應(yīng)不低于蒸汽供汽壓力加；熱水部分應(yīng)不低于。板式換熱器執(zhí)行標(biāo)準(zhǔn)編輯產(chǎn)品標(biāo)準(zhǔn)：NB/T47004-2009《板式熱交換器》工程標(biāo)準(zhǔn)：GB50242-2016《建筑給水排水及采暖工程施工質(zhì)量驗收規(guī)范》CJJ28-2014《城鎮(zhèn)供熱管網(wǎng)工程施工及驗收規(guī)范》相關(guān)標(biāo)準(zhǔn)圖集：05R103《熱交換站工程設(shè)計施工圖集》板式換熱器清洗工藝編輯1．隔離設(shè)備系統(tǒng)。并將換熱器里面的水排放干凈。2．采用高壓水清洗管道內(nèi)存留的淤泥、藻類等雜質(zhì)后，封閉系統(tǒng)。3．在隔離閥和交換器間裝上球閥（不小于1英寸=），進水和回水口都應(yīng)安裝。4．接上輸送泵和連接導(dǎo)管，使清洗劑從換熱器的底部泵入，從頂部流出。5．開始向換熱器里泵入所需要的清洗劑。吉林安全可靠空氣預(yù)熱器哪家便宜</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2887852.html</p></div></div></div></div></div><div id="lxlprav" class="page-right twoColRt"><div id="7lxnwuk" class="box01 margin10 clearfix"><h3><a 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