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class="home-main container clearfix"><div id="82rh8tj" class="twoCol"><div id="ibyf48i" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)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>?河北正規(guī)空氣預(yù)熱器服務(wù)為先上海板換機(jī)械設(shè)備供應(yīng)</p><div id="3hzlvof" class="leftbox clearfix"><h1>河北正規(guī)空氣預(yù)熱器服務(wù)為先上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="tnfh4bn" class="proBig"><div id="fz3jg2m" 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="jyasrwi" 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="ga272sf" 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>河北正規(guī)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="33zrqcj" 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="jd7s8fm" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="kjqxu77" class="box"><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(wèn)題，必須對(duì)空預(yù)器進(jìn)行升溫或在線水沖洗。經(jīng)過(guò)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，河北正規(guī)空氣預(yù)熱器。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(guò)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(guò)低，會(huì)造成燃煤量、煙氣量增大，增加了空預(yù)器阻力?；曳诌^(guò)高，造成鍋爐各受熱面積灰及磨損嚴(yán)重。揮發(fā)分過(guò)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(guò)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(duì)較差，勢(shì)必會(huì)造成飛灰可燃物大量增加。大量或者長(zhǎng)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)，河北正規(guī)空氣預(yù)熱器，疏水不暢或時(shí)間過(guò)短，造成空預(yù)器吹灰蒸汽過(guò)熱度不足，河北正規(guī)空氣預(yù)熱器，吹灰效果差。有資料指出，空預(yù)器吹灰蒸汽過(guò)熱度應(yīng)保持在111-130℃。板式空氣預(yù)熱器使用在加熱爐。河北正規(guī)空氣預(yù)熱器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北正規(guī)空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220414500673828/8758232.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)。公司擁有發(fā)明、實(shí)用新型專利及著作權(quán)等三十余項(xiàng)，技術(shù)人員占公司員工總數(shù)40%以上。公司生產(chǎn)的板式空氣預(yù)熱器是一種節(jié)能設(shè)備，使用在制氫轉(zhuǎn)化爐、裂解爐、加熱爐、鋼鐵工業(yè)的煉鋼爐、廢氣催化焚燒爐、熱風(fēng)爐等產(chǎn)生的高溫?zé)煔馀c燃燒所用冷空氣進(jìn)行熱交換的設(shè)備，其作用是使高溫?zé)煔饫鋮s，減少有害氣體排放，提高燃燒空氣溫度，降低能源消耗，是一種煉油、化工、鋼鐵、冶金、電力工業(yè)等行業(yè)經(jīng)常使用的節(jié)能、環(huán)保設(shè)備。河北正規(guī)空氣預(yù)熱器板式空氣預(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(chǎng)合。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北正規(guī)空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031435547/8438841.jpg"></div><p> 轉(zhuǎn)子隔倉(cāng)由中心筒和外部分倉(cāng)組成。轉(zhuǎn)子中心筒包括中心筒輪轂和內(nèi)部分倉(cāng)，其中轉(zhuǎn)子主徑向隔板與中心筒輪轂連為一體。從中心筒向外延伸的主徑向隔板將轉(zhuǎn)子分為24倉(cāng)，這些分倉(cāng)又被二次徑向隔板分隔呈48倉(cāng)。主徑向隔板和二次徑向隔板之間的環(huán)向隔板起加強(qiáng)轉(zhuǎn)子結(jié)構(gòu)和支撐換熱元件盒的作用。轉(zhuǎn)子與換熱元件等轉(zhuǎn)動(dòng)件的全部重量由底部的球面滾子軸承支撐，而位于頂部的球面滾子導(dǎo)向軸承則用來(lái)承受徑向水平載荷。三分倉(cāng)設(shè)計(jì)的空預(yù)器通過(guò)有三種不同的氣流，即煙氣、二次風(fēng)和一次風(fēng)。煙氣位于轉(zhuǎn)子的一側(cè)，而相對(duì)的另一側(cè)為二次風(fēng)側(cè)和一次風(fēng)側(cè)。上述三種氣流之間各由三組扇形板和軸向密封板相互隔開(kāi)。煙氣和空氣流向相反，即煙氣向下、一次風(fēng)和二次風(fēng)向上。通過(guò)改變扇形板和軸向密封板的寬度可以實(shí)現(xiàn)雙密封和三密封，以滿足對(duì)空預(yù)器總漏風(fēng)率和一次風(fēng)漏風(fēng)率的要求。3、轉(zhuǎn)子外殼轉(zhuǎn)子外殼封閉轉(zhuǎn)子并構(gòu)成空預(yù)器的一部分，由低碳鋼板制成。轉(zhuǎn)子外殼由六個(gè)部分現(xiàn)場(chǎng)組裝而成正八面**于兩個(gè)端柱之間。端柱兩側(cè)的轉(zhuǎn)子外殼由四套鉸鏈側(cè)柱支撐在用戶鋼架上，鉸鏈側(cè)柱的布置角考慮到了轉(zhuǎn)子外殼和鉸鏈側(cè)柱能沿空預(yù)器中心向外自由、均勻膨脹。</p><p> 其反應(yīng)如下：NH3+SO3+H2O＝NH4HSO4(4)2NH3+SO3+H2O＝(NH4)2SO4(5)***氫氨形成的影響因素運(yùn)行經(jīng)驗(yàn)和熱力學(xué)分析都表明，***氫氨的形成取決于反應(yīng)物的濃度和它們的比例。***氫氨的形成量隨NH3濃度的增加而增加，高SO3/NH3摩爾比將促進(jìn)***氫氨的形成及其在空預(yù)器上的沉積。***氫氨的形成同時(shí)依賴于溫度。當(dāng)煙氣溫度略低于***氫氨的初始形成溫度時(shí)，***氫氨即開(kāi)始形成。當(dāng)煙氣溫度下降到低于***氫氨形成的初始溫度25℃時(shí)，***氫氨形成反應(yīng)可完成95%。***氫氨的確切形成區(qū)域取決于初始形成溫度和空預(yù)器溫度，并在空預(yù)器軸向上下波動(dòng)。NH3/SO3摩爾比***氫氨對(duì)***氨的形成起到促進(jìn)的作用，同時(shí)***氨也能對(duì)***氫氨的形成起到一定的促進(jìn)作用。當(dāng)NH3/SO3摩爾比大于2時(shí)，主要形成***氨，在空預(yù)器的運(yùn)行溫度范圍***氨為干燥固體粉末，對(duì)空預(yù)器影響很小，而***氫氨是一種粘性很強(qiáng)的物質(zhì)，很容易在空預(yù)器沉積，并促使大量飛灰附著于空預(yù)器，從而影響其傳熱性能，增大其阻力。因此，正常氨逃逸率按2μL/L，入爐煤硫份，SO3轉(zhuǎn)化率按1%考慮，煙氣中的SO3含量約為μL/L，NH3/SO3摩爾比*為，即摩爾比遠(yuǎn)小于2，因此，隨逃逸的氨和入爐煤硫份的增加，空預(yù)器中沉積的***氫氨也增加。板式空氣預(yù)熱器詢價(jià)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北正規(guī)空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg"></div><p> 可選用搪瓷鍍層換熱元件。在運(yùn)行維護(hù)過(guò)程中，為減少***氫氨對(duì)機(jī)組安全運(yùn)行的影響，應(yīng)從以下幾方面開(kāi)展工作：（1）嚴(yán)格控制氨逃逸率。應(yīng)通過(guò)脫硝性能試驗(yàn)，對(duì)脫硝出口進(jìn)行全斷面氨逃逸率檢測(cè)，比對(duì)在線儀表，保證在線儀表準(zhǔn)確反映實(shí)際情況。（2）建立脫硝系統(tǒng)定期試驗(yàn)制度，包括流場(chǎng)均勻性試驗(yàn)，催化劑活性試驗(yàn)。特別是流場(chǎng)試驗(yàn)。在催化劑運(yùn)行2至3年后，催化劑活性必然降低。同時(shí)，因催化劑磨損、孔等原因，造成局部氨逃逸率超標(biāo)，將進(jìn)一步加快空預(yù)器冷段***氫氨的沉積。通過(guò)流場(chǎng)均勻性試驗(yàn)，能及時(shí)掌握催化劑局部失效引起氨逃逸率局部增加的狀況，通過(guò)調(diào)整噴氨流量分布，避免氨逃逸率局部超標(biāo)。（3）控制入爐煤硫份。由于運(yùn)行中煙氣流經(jīng)催化劑后，煙氣中SO2氧化為SO3的比率基本不變，因而，隨入爐煤硫份的增加，***氫氨的生成物增加，只能通過(guò)控制入爐煤中的硫份來(lái)控制***氫氨。（4）加強(qiáng)空預(yù)器吹灰，并及時(shí)進(jìn)行空預(yù)器清理工作。由于一旦發(fā)生***氫氨沉積，空預(yù)器堵塞發(fā)展較快，因此，要充分利用停爐機(jī)會(huì)檢查空預(yù)器堵塞情況，一旦發(fā)現(xiàn)有***氫氨沉積，應(yīng)立即采取措施，將空預(yù)器傳熱元件清理干凈。板式空氣預(yù)熱器是一種環(huán)保設(shè)備。河北正規(guī)空氣預(yù)熱器</p><p style="text-indent:25px">板式空氣預(yù)熱器使用在裂解爐。河北正規(guī)空氣預(yù)熱器</p><p> 4、使用壽命長(zhǎng)：板式換熱器采用不銹鋼或鈦合金板片壓制，可耐各種腐蝕介質(zhì)，膠墊可隨意更換，并可方便在、拆裝檢修。5、適應(yīng)性強(qiáng)：板式換熱器板片為**元件，可按要求隨意增減流程，形式多樣。可適用于各種不同的、工藝的要求。6、不串液，板式換熱器密封槽設(shè)置泄液液道，各種介質(zhì)不會(huì)串通，即使出現(xiàn)泄露，介質(zhì)總是向外排出。板式換熱器應(yīng)用領(lǐng)域編輯板式換熱器已***應(yīng)用于冶金、礦山、石油、化工、電力、醫(yī)藥、食品、化纖、造紙、輕紡、船舶、供熱等部門(mén)，可用于加熱、冷卻、蒸發(fā)、冷凝、***消毒、余熱回收等各種情況。太陽(yáng)能利用：參與太陽(yáng)能集熱板中傳熱介質(zhì)乙二醇等防凍液熱量交換過(guò)程，以達(dá)到利用太陽(yáng)能目的?；瘜W(xué)工業(yè)：制造氧化鈦、酒精發(fā)酵、合成氨、樹(shù)脂合成、制造橡膠、冷卻磷酸、冷卻甲醛水、堿炭工業(yè)、電解制堿。鋼鐵工業(yè)：冷卻淬火油，冷卻電鍍用液、冷卻減速器潤(rùn)滑油、冷卻軋制機(jī)、拉絲機(jī)冷卻液。冶金行業(yè)：鋁酸鹽母液的加熱和冷卻，冷卻鋁酸鈉。煉鋁軋機(jī)潤(rùn)滑油冷卻。機(jī)械制造業(yè)：各種淬火液冷卻，冷卻壓力機(jī)、工業(yè)母機(jī)潤(rùn)滑油，加熱發(fā)動(dòng)機(jī)用油。食品工業(yè)制鹽，乳品，醬油，動(dòng)植物油加熱、冷卻，啤酒生產(chǎn)中啤酒、麥芽汁的加熱冷卻，制糖，明膠濃縮。河北正規(guī)空氣預(yù)熱器</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2559520.html</p></div></div></div></div></div><div id="s78e48x" class="page-right twoColRt"><div id="qphzbik" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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