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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>?安徽空氣預(yù)熱器生產(chǎn)廠家服務(wù)為先上海板換機(jī)械設(shè)備供應(yīng)</p><div id="yx7tacj" class="leftbox clearfix"><h1>安徽空氣預(yù)熱器生產(chǎn)廠家服務(wù)為先上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="3mtipbt" class="proBig"><div id="3ace83x" 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="8p2u24p" 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="kovnpro" 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>安徽空氣預(yù)熱器生產(chǎn)廠家,空氣預(yù)熱器</p><p><span>***更新：</span>2020-12-24 13:08:14</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="tnphj2t" 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="odprjli" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3rb7q3g" class="box"><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，安徽空氣預(yù)熱器生產(chǎn)廠家、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?？蛇m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，可用于加熱、冷卻、蒸發(fā)、冷凝，安徽空氣預(yù)熱器生產(chǎn)廠家、***消毒、余熱回收等各種情況，安徽空氣預(yù)熱器生產(chǎn)廠家。太陽能利用：參與太陽能集熱板中傳熱介質(zhì)乙二醇等防凍液熱量交換過程，以達(dá)到利用太陽能目的?；瘜W(xué)工業(yè)：制造氧化鈦、酒精發(fā)酵、合成氨、樹脂合成、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。板式空氣預(yù)熱器用在哪里？安徽空氣預(yù)熱器生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽空氣預(yù)熱器生產(chǎn)廠家,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220414500673828/8758232.jpg"></div><p> 因此，空預(yù)器堵塞的原因可以確定為因脫硝系統(tǒng)逃逸的氨與煙氣中的三氧化硫反應(yīng)生成***氫氨，并在空預(yù)器冷段沉積，造成空預(yù)器堵塞?？疹A(yù)器蓄熱元件清理方法空預(yù)器解體檢修后，按無脫硝系統(tǒng)運(yùn)行時(shí)的空預(yù)器清理方案，一般是進(jìn)行手工清理。由于無脫硝系統(tǒng)發(fā)生空預(yù)器積灰堵塞，均為干灰，人工用鋼絲刷等清理較為方便。但由脫硝系統(tǒng)運(yùn)行后，空預(yù)器堵塞物含***氫氨，質(zhì)地堅(jiān)硬，人工采用電動(dòng)鋼絲頭清理仍非常困難，現(xiàn)場(chǎng)處理經(jīng)驗(yàn)表明，清理一片蓄熱元件需45分鐘，不采取措施將嚴(yán)重拖延大修進(jìn)度?，F(xiàn)場(chǎng)通過用工業(yè)沖洗浸泡的方法仍不能提高清理速度，后采用化學(xué)溶液浸泡后，將元件盒解包，再用高壓水槍沖洗的方法，才有效解決清理的問題。經(jīng)化學(xué)清洗后，冷端蓄熱元件均得到徹底清理。實(shí)踐經(jīng)驗(yàn)表明：對(duì)于給定的SO2濃度和溫度，就實(shí)際生成的SO3量而言，SO3的生成率幾乎不變。在脫硝過程中由于氨的不完全反應(yīng)，SCR煙氣脫硝過程發(fā)生氨逃逸是必然的，并且氨逃逸隨時(shí)間會(huì)發(fā)生變化，氨逃逸率主要取決于以下因素：(1)注入氨流量分布均勻情況；(2)設(shè)定的NH3/NOx摩爾比；(3)催化劑堵塞情況；(4)催化劑老化情況。反應(yīng)生成的SO3進(jìn)一步同煙氣中逃逸的氨反應(yīng)，生成***氫氨或***氨。安徽空氣預(yù)熱器生產(chǎn)廠家板式空氣預(yù)熱器使用在鋼鐵行業(yè)的煉鋼爐。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽空氣預(yù)熱器生產(chǎn)廠家,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031435547/8438841.jpg"></div><p> 可選用搪瓷鍍層換熱元件。在運(yùn)行維護(hù)過程中，為減少***氫氨對(duì)機(jī)組安全運(yùn)行的影響，應(yīng)從以下幾方面開展工作：（1）嚴(yán)格控制氨逃逸率。應(yīng)通過脫硝性能試驗(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，只能通過控制入爐煤中的硫份來控制***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。</p><p> 投入暖風(fēng)器或熱風(fēng)再循環(huán)努力控制空預(yù)器綜合冷端溫度不低于目標(biāo)溫度?？疹A(yù)器出口綜合冷端溫度低于目標(biāo)值時(shí)，優(yōu)先采用降低磨煤機(jī)出口溫度，適當(dāng)增加一次風(fēng)比例（注意鍋爐燃燒和飛灰含碳量的變化情況），以提高空預(yù)器出口排煙溫度?？疹A(yù)器蒸汽吹灰疏水溫度控制在比吹灰母管壓力對(duì)應(yīng)的飽和溫度高5-20℃范圍內(nèi)，空預(yù)器實(shí)際排煙溫度高于目標(biāo)綜合冷端溫度時(shí)，取下限，否則取上限。安裝并運(yùn)行脫硝裝置的鍋爐，要防止局部或部分時(shí)段噴氨過量引起的氨逃逸量超標(biāo)(≯3ppm)。優(yōu)化鍋爐配風(fēng)，利用煙氣再循環(huán)，防止過氧（必要時(shí)根據(jù)CO生成量適度控制低氧）燃燒和爐膛局部溫度過高，減少爐內(nèi)SO3的生成?？疹A(yù)器煙氣側(cè)差壓超過設(shè)計(jì)值或空預(yù)器冷端溫度低于目標(biāo)溫度時(shí)，應(yīng)增加吹灰頻次，煙氣側(cè)差壓超過，提高空預(yù)器冷端吹灰器彈簧閥后壓力（比較高至）加強(qiáng)吹灰，當(dāng)差壓恢復(fù)正常值范圍內(nèi)，逐漸恢復(fù)正常吹灰壓力，防止吹損蓄熱元件。加強(qiáng)鍋爐暖風(fēng)器、熱風(fēng)再循環(huán)、空預(yù)器扇形板自動(dòng)調(diào)整裝置設(shè)備的運(yùn)行維護(hù)，保證設(shè)備運(yùn)行良好。暖風(fēng)器、鍋爐受熱面（特別是省煤器）泄漏后要及時(shí)隔離或停爐處理?？疹A(yù)器停爐進(jìn)行水沖洗后，啟動(dòng)點(diǎn)火前要充分烘干。要加強(qiáng)空預(yù)器進(jìn)出口差壓、溫度。板式空氣預(yù)熱器是上海板換機(jī)械設(shè)備有限公司主要產(chǎn)品之一。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽空氣預(yù)熱器生產(chǎn)廠家,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405032539062/8800983.jpg"></div><p> 進(jìn)汽端比疏水端提高了約300mm左右，可以緩解了暖風(fēng)器泄漏幾率。在暖風(fēng)器處都增加了玻璃觀察窗，以方便運(yùn)行過程中檢查暖風(fēng)器是否內(nèi)漏。制粉系統(tǒng)投運(yùn)時(shí)盡量滿足著火能量機(jī)組每次停運(yùn)時(shí)，在條件允許的情況下，盡量將安裝有等離子點(diǎn)火裝置的磨煤機(jī)對(duì)應(yīng)煤斗燒空，并在下次機(jī)組啟動(dòng)前將該煤斗配上發(fā)熱量大于4500kcal/kg，揮發(fā)份較高的煤種。同時(shí)等離子磨煤機(jī)啟動(dòng)前應(yīng)保證二次風(fēng)溫大于200℃，以減少制粉系統(tǒng)啟動(dòng)初期大量不完全燃燒產(chǎn)物的生成，從而抑止空預(yù)器堵灰的發(fā)生。加強(qiáng)省煤器輸灰系統(tǒng)綜合治理鍋爐日常運(yùn)行中加強(qiáng)省煤器灰斗料位的監(jiān)視和控制，一旦發(fā)現(xiàn)高料位，立即聯(lián)系檢修進(jìn)行處理。同時(shí)利用停爐機(jī)會(huì)，檢查省煤器灰斗真實(shí)料位，徹底疏通輸灰管線。對(duì)空預(yù)器要進(jìn)行定期吹灰且吹灰蒸汽要保證足夠的過熱度吹灰至少每8小時(shí)進(jìn)行一次，如果發(fā)現(xiàn)空預(yù)器差壓有上升趨勢(shì)，應(yīng)縮短吹灰時(shí)間間隔。吹灰程序控制必須采取疏水溫度控制，不能通過時(shí)間簡(jiǎn)單判斷疏水是否干凈，必要時(shí)進(jìn)行疏水管路改造以確?？疹A(yù)器吹灰效果。加強(qiáng)吹灰閥門的綜合治理每次停爐后對(duì)空預(yù)器吹灰進(jìn)汽閥和吹灰***進(jìn)行檢查處理，保證運(yùn)行中不發(fā)生濕蒸汽泄漏到空預(yù)器換熱元件上。板式空氣預(yù)熱器怎么清洗？安徽空氣預(yù)熱器代理</p><p style="text-indent:25px">板式空氣預(yù)熱器每個(gè)模塊均自帶外框架。安徽空氣預(yù)熱器生產(chǎn)廠家</p><p> 技術(shù)領(lǐng)域本實(shí)用新型涉及電站鍋爐空預(yù)器運(yùn)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(jì)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(jí)降低、引風(fēng)機(jī)電耗增大等問題。尤其針對(duì)裝設(shè)有mggh系統(tǒng)的機(jī)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(jì)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(shí)現(xiàn)要素：本實(shí)用新型為了彌補(bǔ)現(xiàn)有技術(shù)的不足，提供了一種結(jié)構(gòu)簡(jiǎn)單、設(shè)計(jì)合理的有效緩解空預(yù)器***氫銨堵塞的聯(lián)合系統(tǒng)。本實(shí)用新型是通過如下技術(shù)方案實(shí)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(jìn)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(jī)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(jìn)一步提高鍋爐送風(fēng)溫度。本實(shí)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(jī)組負(fù)荷進(jìn)行調(diào)整，減少風(fēng)機(jī)電耗。前置煙冷器回收部分煙氣余熱。安徽空氣預(yù)熱器生產(chǎn)廠家</p></p><br /><p>文章來源地址: 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