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href="http://m.cdcfah.com/cp/third-crsbje_qtcrsbpw/">其他傳熱設(shè)備</a>?河北**空氣預(yù)熱器來(lái)電咨詢(xún) 上海板換機(jī)械設(shè)備供應(yīng)</p><div id="wlsebfm" class="leftbox clearfix"><h1>河北**空氣預(yù)熱器來(lái)電咨詢(xún) 上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="hlnkcoa" class="proBig"><div id="ajby8um" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405039677734/951043.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="x3bykho" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405039677734/951043.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mg27f7r" 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,空氣預(yù)熱器</p><p><span>***更新：</span>2021-01-11 00:19:03</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="bv29rwh" 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="p2k7f23" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ir39shd" class="box"><p><p> 空預(yù)器吹灰壓力、疏水溫度，脫硝催化劑出口氨逃逸等表計(jì)的檢測(cè)維護(hù)，保證指示準(zhǔn)確。空預(yù)器檢修中要通過(guò)校直大軸、修復(fù)密封片、利用新型密封技術(shù)等降低空預(yù)器漏風(fēng)率，提高空預(yù)器出口排煙溫度。C級(jí)及以上計(jì)劃?rùn)z修時(shí)，根據(jù)空預(yù)器腐蝕、積灰情況把蓄熱元件拆包徹底清洗，河北**空氣預(yù)熱器，河北**空氣預(yù)熱器，冷、熱端蓄熱元件復(fù)裝時(shí)調(diào)換位置使用。部分電廠聘請(qǐng)專(zhuān)業(yè)清洗公司用高壓射流清洗車(chē)對(duì)空預(yù)器蓄熱元件在不吊出的情況下進(jìn)行沖洗。空預(yù)器堵塞嚴(yán)重的，要分析蓄熱元件高度和直徑設(shè)計(jì)是否合理，必要時(shí)進(jìn)行大通道蓄熱元件換型改造（改成L型直通道），或進(jìn)行空預(yù)器增加直徑改造。投用暖風(fēng)器或熱風(fēng)再循環(huán)系統(tǒng)，將對(duì)機(jī)組經(jīng)濟(jì)性產(chǎn)生不利影響，機(jī)組煤耗將上升1-3g/kWh，因此，河北**空氣預(yù)熱器，在冷端綜合溫度（或冷端平均溫度）滿足要求的情況下，應(yīng)及時(shí)停用暖風(fēng)器或熱風(fēng)再循環(huán)系統(tǒng)，防止過(guò)量投入造成能耗增加。板式空氣預(yù)熱器適用哪些工況？河北**空氣預(yù)熱器</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,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405039677734/951043.jpg"></div><p style="text-indent:25px"> 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?？疹A(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。廣東**空氣預(yù)熱器板式空氣預(yù)熱器怎么維修？</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,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405032539062/8800983.jpg"></div><p> 吹灰器先連續(xù)前進(jìn)至**前端，然后按步退10mm停留52s（轉(zhuǎn)子轉(zhuǎn)動(dòng)一圈）的方式循環(huán)吹掃，直至退到***端執(zhí)行完一個(gè)吹掃流程。一個(gè)吹掃流程的用時(shí)約。在就地控制柜上停止高壓水泵，在程控作用下，氣動(dòng)卸荷閥先打開(kāi)，延時(shí)120s后電機(jī)停止。關(guān)閉高壓水管路中通往#2機(jī)組的閥門(mén)和通往A側(cè)空預(yù)器的閥門(mén)。打開(kāi)底部吹灰器蒸汽進(jìn)口管道上的閥門(mén)，接通蒸汽吹灰通道。，對(duì)B側(cè)空預(yù)器進(jìn)行沖洗。注意事項(xiàng)：，可先短時(shí)間地進(jìn)行試驗(yàn)性沖洗。在檢查機(jī)組運(yùn)行情況正常后，再逐步延長(zhǎng)試驗(yàn)時(shí)間，觀察空預(yù)器驅(qū)動(dòng)電機(jī)電流、空預(yù)器阻力、排煙溫度、煙道排污情況及除塵器運(yùn)行是否正常。觀察和記錄高壓水沖洗時(shí)間、壓力、空預(yù)器在沖洗前后機(jī)組負(fù)荷、煙氣和空氣側(cè)差壓、送風(fēng)機(jī)和引風(fēng)機(jī)電流、爐膛壓力、熱風(fēng)和排煙溫度等參數(shù)?！妫瑧?yīng)該及時(shí)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(shí)，仍需再?zèng)_洗一到兩次。換熱元件沖洗得越干凈，下次沖洗的周期越長(zhǎng)，應(yīng)在就地控制箱上將密封風(fēng)機(jī)啟動(dòng)，以保護(hù)噴嘴不被堵塞。（進(jìn)、出口有壓力表），當(dāng)進(jìn)水壓力小于3bar時(shí)，應(yīng)停泵清洗濾網(wǎng)，以免吸水不暢引起泵的異常震動(dòng)。。 </p><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(chǎng)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(guò)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(guò)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(guò)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(guò)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)熱器是一種化工行業(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="河北**空氣預(yù)熱器,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(guò)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?chē)A(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(lèi)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(kāi)始向換熱器里泵入所需要的清洗劑。板式空氣預(yù)熱器方便清洗嗎？河北**空氣預(yù)熱器</p><p style="text-indent:25px">板式空氣預(yù)熱器是一種環(huán)保設(shè)備。河北**空氣預(yù)熱器</p><p style="text-indent:25px">美國(guó)的“智能紡織計(jì)劃”、德國(guó)的“未來(lái)紡織項(xiàng)目”等，中國(guó)也推出了《紡織工業(yè)“十三五”發(fā)展規(guī)劃》，把推進(jìn)銷(xiāo)售作為了一個(gè)重要的攻關(guān)方向。一時(shí)間紡織智能制造技術(shù)被推到了風(fēng)口浪尖。創(chuàng)新、協(xié)調(diào)、綠色、開(kāi)放、共享的五大發(fā)展理念，不僅對(duì)機(jī)械制造業(yè)也提出了明確要求，研發(fā)生產(chǎn)科技含量高、附加值高、智能化程度高而碳量排放少的板式換熱器機(jī)組，可拆式板式換熱器，焊接式板式換熱器，板式空氣預(yù)熱器裝備；同時(shí)還要調(diào)整產(chǎn)業(yè)結(jié)構(gòu)，轉(zhuǎn)變發(fā)展方式實(shí)現(xiàn)轉(zhuǎn)型升級(jí)。隨著有限責(zé)任公司產(chǎn)業(yè)轉(zhuǎn)型升級(jí)的持續(xù)推進(jìn)，近幾年中國(guó)人口老齡化的日益嚴(yán)峻，勞動(dòng)力短缺，人力成本明顯上升，智能化已成為大勢(shì)所趨，工程機(jī)械也不例外。無(wú)論是從減輕環(huán)境負(fù)擔(dān)，還是打破對(duì)外貿(mào)易壁壘等方面考慮，節(jié)能環(huán)保之路都將成為化工設(shè)備、環(huán)保設(shè)備及配件的制造加工及銷(xiāo)售，機(jī)械設(shè)備設(shè)計(jì)安裝（除特種設(shè)備外），在金山區(qū)山陽(yáng)鎮(zhèn)山寧路99號(hào)內(nèi)從事自有房屋租賃。【依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門(mén)批準(zhǔn)后方可開(kāi)展經(jīng)營(yíng)活動(dòng)】。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(yù)熱器、TP焊接換熱器、板框式熱交換器等。發(fā)展的主流趨勢(shì)。今后中國(guó)機(jī)械產(chǎn)業(yè)的發(fā)展將更加注重轉(zhuǎn)型升級(jí)，而在具體的實(shí)施策略中，節(jié)能環(huán)保將成為主要的發(fā)展方向。河北**空氣預(yù)熱器</p></p><br 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