江蘇供暖空氣預(yù)熱器來電咨詢上海板換機(jī)械設(shè)備供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 在《火力發(fā)電機(jī)節(jié)能降耗技術(shù)導(dǎo)則》、《300MW鍋爐及輔機(jī)節(jié)能降耗技術(shù)導(dǎo)則》和《燃煤電廠節(jié)能降耗技術(shù)推廣應(yīng)用目錄》推薦的相關(guān)技術(shù)基礎(chǔ)上，江蘇供暖空氣預(yù)熱器，對(duì)"><meta name="keywords" content="江蘇供暖空氣預(yù)熱器,空氣預(yù)熱器"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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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>江蘇供暖空氣預(yù)熱器,空氣預(yù)熱器</p><p><span>***更新：</span>2020-12-25 14:10:51</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="kelawkb" 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="nc8jlar" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zynuwda" class="box"><p><p> 在《火力發(fā)電機(jī)節(jié)能降耗技術(shù)導(dǎo)則》、《300MW鍋爐及輔機(jī)節(jié)能降耗技術(shù)導(dǎo)則》和《燃煤電廠節(jié)能降耗技術(shù)推廣應(yīng)用目錄》推薦的相關(guān)技術(shù)基礎(chǔ)上，江蘇供暖空氣預(yù)熱器，對(duì)空預(yù)器密封治理的相關(guān)技術(shù)和注意事項(xiàng)進(jìn)行介紹：（1）密封方式簡介1)雙道密封改造：將轉(zhuǎn)子隔倉數(shù)增加一倍，通常由24分倉改為48分倉，加寬扇形板，形成雙密封面，漏風(fēng)率可降低30%，通常漏風(fēng)率低于6%。不足之處是風(fēng)煙阻力略有增加，轉(zhuǎn)子重量增加；如將原傳熱元件拆包切割，易造成傳熱面積下降和損元件。鶴崗電廠采用了該方案。2）三道密封改造：在原雙密封改造基礎(chǔ)上，進(jìn)一步增加轉(zhuǎn)子隔倉，加寬扇形板，形成三道密封面，漏風(fēng)率可在雙密封基礎(chǔ)上進(jìn)一步下降12%。但造成隔倉過密，傳熱元件偏小，風(fēng)煙阻力上升10%左右。目前部分一次風(fēng)壓頭較高的新機(jī)組采用。3）拖拽式軟密封技術(shù)：類似柔性密封技術(shù)，在徑向隔板原徑向密封片的基礎(chǔ)上，再增加一道較薄的有一定彈性和折角較大的密封片，以增加密封道數(shù)，并允許密封片與扇形板有一定接觸。在投運(yùn)初期能有效降低漏風(fēng)率（可至4%左右），江蘇供暖空氣預(yù)熱器。不足之處：只在間隙小于10mm時(shí)有效，江蘇供暖空氣預(yù)熱器，大機(jī)組無LCS（間隙自調(diào)裝置）時(shí)熱端效果不明顯；運(yùn)行時(shí)間長后接觸式密封片易磨損失效。板式空氣預(yù)熱器廠家。江蘇供暖空氣預(yù)熱器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇供暖空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220410559414062/9489232.jpg"></div><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)的檢測維護(hù)，保證指示準(zhǔn)確?？疹A(yù)器檢修中要通過校直大軸、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)劃檢修時(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，冷、熱端蓄熱元件復(fù)裝時(shí)調(diào)換位置使用?？疹A(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，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)，防止過量投入造成能耗增加?？疹A(yù)器在線高壓水沖洗案例：2012年11月，珞璜電廠在#5爐（600MW）運(yùn)行中成功進(jìn)行了空預(yù)器冷端傳元熱件在線高壓水沖洗，取得成效。在《火力發(fā)電機(jī)節(jié)能降耗技術(shù)導(dǎo)則》、《300MW鍋爐及輔機(jī)節(jié)能降耗技術(shù)導(dǎo)則》和《燃煤電廠節(jié)能降耗技術(shù)推廣應(yīng)用目錄》推薦的相關(guān)技術(shù)基礎(chǔ)上，對(duì)空預(yù)器密封治理的相關(guān)技術(shù)和注意事項(xiàng)進(jìn)行介紹：（1）密封方式簡介1)雙道密封改造：將轉(zhuǎn)子隔倉數(shù)增加一倍，通常由24分倉改為48分倉。黑龍江本地空氣預(yù)熱器板式空氣預(yù)熱器是全焊接密封結(jié)構(gòu)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇供暖空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220411145419922/7208407.jpg"></div><p> 板式換熱器是由一系列具有一定波紋形狀的金屬片疊裝而成的一種換熱器。各種板片之間形成薄矩形通道，通過板片進(jìn)行熱量交換。板式換熱器是液—液、液—汽進(jìn)行熱交換的理想設(shè)備。它具有換熱效率高、熱損失小、結(jié)構(gòu)緊湊輕巧、占地面積小、應(yīng)用廣、使用壽命長等特點(diǎn)。在相同壓力損失情況下，其傳熱系數(shù)比管式換熱器高3-5倍，占地面積為管式換熱器的三分之一，熱回收率可高達(dá)90%以上板片和墊片的四個(gè)角孔形成了流體的分配管和匯集管，同時(shí)又合理地將冷熱流體分開，使其分別在每塊板片兩側(cè)的流道中流動(dòng)，通過板片進(jìn)行熱交換。[3]板式換熱器的優(yōu)化設(shè)計(jì)計(jì)算，就是在已知溫差比NTUE的條件下，合理地確定其型號(hào)、流程和傳熱面積，使NTUp等于NTUE。[4]板式換熱器基本組成結(jié)構(gòu)：⒈板式換熱器板片和板式換熱器密封墊片⒉固定壓緊板⒊活動(dòng)壓緊板⒋夾緊螺栓⒌上導(dǎo)桿⒍下導(dǎo)桿⒎后立柱板式換熱器特點(diǎn)編輯（板式換熱器與管殼式換熱器的比較）a.傳熱系數(shù)高；由于不同的波紋板相互倒置，構(gòu)成復(fù)雜的流道，使流體在波紋板間流道內(nèi)呈旋轉(zhuǎn)三維流動(dòng)，能在較低的雷諾數(shù)（一般Re=50~200）下產(chǎn)生紊流，所以傳熱系數(shù)高，一般認(rèn)為是管殼式的3~5倍。[2]b.對(duì)數(shù)平均溫差大，末端溫差小。在管殼式換熱器中。</p><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?？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)通過調(diào)整冷端溫度觀察空預(yù)器差壓變化趨勢等方法，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。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="江蘇供暖空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg"></div><p> 上海板換機(jī)械設(shè)備有限公司是專業(yè)從事板式熱交換器及其成套裝置設(shè)計(jì)、制造、安裝和服務(wù)的中德合資企業(yè)。公司致力于為國內(nèi)外石油/天然氣行業(yè)、船舶行業(yè)、暖通空調(diào)行業(yè)、化工行業(yè)、食品醫(yī)藥行業(yè)、電力行業(yè)、生物能源行業(yè)、冶金行業(yè)、機(jī)械制造行業(yè)、造紙行業(yè)等客戶提供***的板式熱交換設(shè)備。 </p> <p> 公司現(xiàn)有16大系列、20余品種的熱交換設(shè)備，主要產(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。公司立足上海，服務(wù)全球，在全球設(shè)立多處服務(wù)網(wǎng)絡(luò)，以滿足客戶需求。板式空氣預(yù)熱器的作用是降低能源消耗。黑龍江本地空氣預(yù)熱器</p><p style="text-indent:25px">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。江蘇供暖空氣預(yù)熱器</p><p> 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(tái)空預(yù)器沖洗合格需要進(jìn)行60小時(shí)左右。沖洗結(jié)束后一定要進(jìn)行充分干燥，防止啟動(dòng)時(shí)大量灰粒粘貼到換熱元件。SCR超低排放后的預(yù)防手段合理控制噴氨量合理控制SCR出口參數(shù)，避免過調(diào)。根據(jù)設(shè)計(jì)條件，每臺(tái)爐SCR系統(tǒng)都有設(shè)計(jì)比較大噴氨量。當(dāng)自調(diào)或人工調(diào)整時(shí)，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降低到超低排放值，應(yīng)考慮其他方面的影響，不應(yīng)*靠過噴氨量來實(shí)現(xiàn)。加強(qiáng)對(duì)噴氨格柵均勻性的調(diào)整制定噴氨格柵定期調(diào)整試驗(yàn)機(jī)制，每次檢修或每半年均應(yīng)對(duì)噴氨格柵進(jìn)行一次優(yōu)化，防止噴氨不均勻造成反應(yīng)效率下降，浪費(fèi)氨氣的同時(shí)造成空預(yù)器***氫氨堵塞。控制氨逃逸濃度運(yùn)行中加強(qiáng)對(duì)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，應(yīng)及時(shí)修復(fù)，避免長時(shí)間不均勻運(yùn)行。定期更換催化劑層建立各爐催化劑臺(tái)賬，對(duì)催化劑進(jìn)行全壽命管理，及時(shí)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超低排放及當(dāng)前脫硝調(diào)節(jié)系統(tǒng)特性問題。江蘇供暖空氣預(yù)熱器</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2559519.html</p></div></div></div></div></div><div id="8mlszgi" class="page-right 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