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href="http://www.cdcfah.com/cp/third-crsbje_qtcrsbpw/">其他傳熱設(shè)備</a>?上海空氣預(yù)熱器代理銷售價(jià)格來電咨詢上海板換機(jī)械設(shè)備供應(yīng)</p><div id="f4xof8m" class="leftbox clearfix"><h1>上?？諝忸A(yù)熱器代理銷售價(jià)格來電咨詢上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="7jhqn3s" class="proBig"><div id="dykbxzk" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220411145419922/7208407.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="chya7r4" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220411145419922/7208407.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="f7rf88z" 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>上?？諝忸A(yù)熱器代理銷售價(jià)格,空氣預(yù)熱器</p><p><span>***更新：</span>2020-12-22 03:06:10</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="bwdu8w4" 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="sahdkbx" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="jw8az7j" class="box"><p><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，上海空氣預(yù)熱器代理銷售價(jià)格，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將開換熱器解體，對板片變形部位進(jìn)行修理或者更換板片。在沒有板片備件時(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小造成應(yīng)力腐蝕。④板片泄漏槽處有輕微滲漏，上海空氣預(yù)熱器代理銷售價(jià)格，造成介質(zhì)中有害物質(zhì)（如C1）濃縮腐蝕板片。形成串液。現(xiàn)場分析發(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，上?？諝忸A(yù)熱器代理銷售價(jià)格。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。板式空氣預(yù)熱器是一種電力工業(yè)經(jīng)常使用的節(jié)能、環(huán)保設(shè)備。上?？諝忸A(yù)熱器代理銷售價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海空氣預(yù)熱器代理銷售價(jià)格,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220411145419922/7208407.jpg"></div><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(diǎn)編輯⒈換熱器不應(yīng)有變形，緊固件不應(yīng)有松動(dòng)或其它機(jī)械損傷。⒉設(shè)備吊裝時(shí)，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(jìn)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(jìn)行清洗，防止砂石焊渣等雜物進(jìn)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(yàn)收規(guī)范》CJJ28-2014《城鎮(zhèn)供熱管網(wǎng)工程施工及驗(yàn)收規(guī)范》相關(guān)標(biāo)準(zhǔn)圖集：05R103《熱交換站工程設(shè)計(jì)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(jìn)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。甘肅空氣預(yù)熱器價(jià)格板式空氣預(yù)熱器是一種鋼鐵行業(yè)經(jīng)常使用的節(jié)能、環(huán)保設(shè)備。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?？諝忸A(yù)熱器代理銷售價(jià)格,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220414500673828/8758232.jpg"></div><p> 流程和流道的選擇流程指板式換熱器內(nèi)一種介質(zhì)同前列動(dòng)方向的一組并聯(lián)流道，而流道指板式換熱器內(nèi)，相鄰兩板片組成的介質(zhì)流動(dòng)通道。一般情況下，將若干個(gè)流道按并聯(lián)或串聯(lián)的方式連接起來，以形成冷、熱介質(zhì)通道的不同組合。流程組合形式應(yīng)根據(jù)換熱和流體阻力計(jì)算，在滿足工藝條件要求下確定。盡量使冷、熱水流道內(nèi)的對流換熱系數(shù)相等或接近，從而得到比較好的傳熱效果。因?yàn)樵趥鳠岜砻鎯蓚?cè)對流換熱系數(shù)相等或接近時(shí)傳熱系數(shù)獲得較大值。雖然板式換熱器各板間流速不等，但在換熱和流體阻力計(jì)算時(shí)，仍以平均流速進(jìn)行計(jì)算。由于“U”形單流程的接管都固定在壓緊板上，拆裝方便。壓降校核在板式換熱器的設(shè)計(jì)選型時(shí)，一般對壓降有一定的要求，所以應(yīng)對其進(jìn)行校核。如果校核壓降超過允許壓降，需重新進(jìn)行設(shè)計(jì)選型計(jì)算，直到滿足工藝要求為止。計(jì)算方法關(guān)于傳熱系數(shù)和壓降的計(jì)算，由各個(gè)廠家產(chǎn)品的性能曲線計(jì)算得到。性能曲線（準(zhǔn)則關(guān)聯(lián)式）一般來自于產(chǎn)品的性能測試。對于缺少性能測試的板型，也可通過參考尺寸法，根據(jù)板型的特性幾何尺寸獲得板型的準(zhǔn)則關(guān)聯(lián)式，國際上的一些通用軟件均采用這種方法。選型軟件關(guān)于板式換熱器的選型軟件。</p><p> 過剩空氣系數(shù)是燃料燃燒時(shí)實(shí)際空氣需要量與理論空氣需要量之比值，用“α”表示。計(jì)算公式：α＝()其中：，O2實(shí)測值為儀器測量煙道中的O2值舉例：鍋爐測試時(shí)O2實(shí)測值為13%，計(jì)算出的過?？諝庀禂?shù)α＝(％)＝國標(biāo)規(guī)定過?？諝庀禂?shù)應(yīng)按α＝（燃煤鍋爐），α＝（燃油燃?xì)忮仩t）進(jìn)行折算。舉例：燃煤鍋爐，鍋爐測試時(shí)O2實(shí)測值為13%，SO2排放值500ppm，計(jì)算出的過?？諝庀禂?shù)α＝，那么根據(jù)國標(biāo)規(guī)定，折算后的SO2排放濃度＝SO2實(shí)測值×（α實(shí)際值/α國標(biāo)值）＝500ppm×（）=722ppm舉例：燃油燃?xì)忮仩t，鍋爐測試時(shí)O2實(shí)測值為13%，SO2排放值500ppm，計(jì)算出的過?？諝庀禂?shù)α＝，那么根據(jù)國標(biāo)規(guī)定，折算后的SO2排放濃度＝SO2實(shí)測值×（α實(shí)際值/α國標(biāo)值）＝500ppm×（）=1083ppm空預(yù)器漏風(fēng)依據(jù)下列各式計(jì)算：α=21/21-o2Δα=α2-α1δ=。板式空氣預(yù)熱器便于清潔維護(hù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?？諝忸A(yù)熱器代理銷售價(jià)格,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031093750/2889219.jpg"></div><p> 達(dá)到破壞板片表面鈍化層的腐蝕條件。同時(shí)，由于此區(qū)域板片冷沖壓形成的內(nèi)部應(yīng)力較大，在表面鈍化層被破壞的情況下，內(nèi)部應(yīng)力作用導(dǎo)致應(yīng)力腐蝕的發(fā)生。處理方法：①更換有裂紋或穿孔板片，在現(xiàn)場用透光法查找板片裂紋。②調(diào)整運(yùn)行參數(shù)，使其達(dá)到設(shè)計(jì)條件。③換熱器維修組裝時(shí)夾緊尺寸應(yīng)符合要求，并不是越小越好。④板式換熱器板片材料合理匹配。壓降過大產(chǎn)生原因：①運(yùn)行系統(tǒng)管路未進(jìn)行正常吹洗，特別是新安裝系統(tǒng)管路中許多臟物（如焊渣等）進(jìn)入板式換熱器的內(nèi)部。由于板式換熱器流道截面積較窄，換熱器內(nèi)的沉淀物和懸浮物聚集在角孔處和導(dǎo)流區(qū)內(nèi)，導(dǎo)致該處的流道面積大為減小，造成壓力主要損失在此部位。②板式換熱器選型時(shí)面積偏小，造成板間流速過高而壓降偏大。③板式換熱器運(yùn)行一段時(shí)間后，因板片表面結(jié)垢引起壓降過大。實(shí)例：2000年我廠為新疆用戶提供了BR10型板式換熱器，用于水一水換熱的集中供熱系統(tǒng)，一次供水設(shè)計(jì)溫度為130℃。在換熱器設(shè)計(jì)選型時(shí)。傳熱導(dǎo)數(shù)偏高，接近5500w/(rn·K），而實(shí)際應(yīng)在3500w/(rn·K）。同時(shí)，設(shè)計(jì)單位在水泵選型時(shí)流量余量又偏大，造成換熱器二次側(cè)介質(zhì)板間流速超過1m/s，實(shí)際運(yùn)行壓降在～MPa，使得二次網(wǎng)水力平衡嚴(yán)重失調(diào)。板式空氣預(yù)熱器是一種環(huán)保設(shè)備。甘肅空氣預(yù)熱器價(jià)格</p><p style="text-indent:25px">板式空氣預(yù)熱器分為蓄熱式和間壁式。上?？諝忸A(yù)熱器代理銷售價(jià)格</p><p> 【摘要】：為了適應(yīng)環(huán)保新要求，SCR超低排放改造后，造成空預(yù)器壓差偏大，引起風(fēng)機(jī)耗電增加、喘振失速等問題，必須對空預(yù)器進(jìn)行升溫或在線水沖洗。經(jīng)過多次升溫消除空預(yù)器堵塞和在線水沖洗，積累了經(jīng)驗(yàn)?？諝忸A(yù)熱器堵灰還會(huì)造成鍋爐排煙溫度升高,風(fēng)煙系統(tǒng)阻力增加，一次風(fēng)、二次風(fēng)正壓側(cè)和煙氣負(fù)壓側(cè)的壓差增大，增加了空氣預(yù)熱器漏風(fēng)，堵灰嚴(yán)重還會(huì)影響鍋爐的帶負(fù)荷能力。1.空預(yù)器堵塞的一般原因鍋爐燃煤煤種不符合設(shè)計(jì)值煤種含硫量過高。會(huì)引起煙氣**的降低，導(dǎo)致空預(yù)器冷端結(jié)露而造成腐蝕。燃煤低位發(fā)熱量過低，會(huì)造成燃煤量、煙氣量增大，增加了空預(yù)器阻力。灰分過高，造成鍋爐各受熱面積灰及磨損嚴(yán)重。揮發(fā)分過高，引起灰熔點(diǎn)下降，更容易結(jié)焦。鍋爐啟動(dòng)時(shí)制粉系統(tǒng)投入不當(dāng)鍋爐啟動(dòng)過程中，采用小油點(diǎn)火，或是啟動(dòng)磨煤機(jī)時(shí)，爐膛溫度低，煤粉燃燒相對較差，勢必會(huì)造成飛灰可燃物大量增加。大量或者長時(shí)間投運(yùn)油時(shí)，未燃盡的油污及未燃燒的煤粉進(jìn)入空預(yù)器增加了堵灰的風(fēng)險(xiǎn)?？疹A(yù)器吹灰介質(zhì)未達(dá)到設(shè)計(jì)值空預(yù)器采用蒸汽吹灰時(shí)，疏水不暢或時(shí)間過短，造成空預(yù)器吹灰蒸汽過熱度不足，吹灰效果差。有資料指出，空預(yù)器吹灰蒸汽過熱度應(yīng)保持在111-130℃。上?？諝忸A(yù)熱器代理銷售價(jià)格</p><p style="text-indent:25px">上海板換機(jī)械設(shè)備有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下板式換熱器機(jī)組，可拆式板式換熱器，焊接式板式換熱器，板式空氣預(yù)熱器深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在機(jī)械及行業(yè)設(shè)備深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢，打造機(jī)械及行業(yè)設(shè)備良好品牌。上海板換憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2505674.html</p></div></div></div></div></div><div id="gf3qc8z" class="page-right twoColRt"><div id="tcjqcyz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7j9hdzl" 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) 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