四川化工空氣預(yù)熱器上海板換機(jī)械設(shè)備供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 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，四川化工空氣預(yù)熱器。鶴崗電廠采用"><meta name="keywords" content="四川化工空氣預(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" content="no-transform" /> <meta 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class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<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>?四川化工空氣預(yù)熱器上海板換機(jī)械設(shè)備供應(yīng)</p><div id="yqdfxjg" class="leftbox clearfix"><h1>四川化工空氣預(yù)熱器上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="aurolnp" class="proBig"><div id="bq8zvse" 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="blnfhtv" 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="2gi7q7q" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>四川化工空氣預(yù)熱器,空氣預(yù)熱器</p><p><span>***更新：</span>2020-08-27 01:16:51</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="mbnu3fx" 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>張云周</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</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="u7xmo8x" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="df3qxu2" class="box"><p><p> 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，四川化工空氣預(yù)熱器。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）。不足之處：只在間隙小于10mm時有效，大機(jī)組無LCS（間隙自調(diào)裝置）時熱端效果不明顯；運(yùn)行時間長后接觸式密封片易磨損失效。加壓密封技術(shù)：通常用于GGH，即GGH的低泄漏風(fēng)系統(tǒng)。綜合性密封技術(shù)：部分廠家綜合以上多種技術(shù)的特點，對空預(yù)器徑向，四川化工空氣預(yù)熱器、軸向，四川化工空氣預(yù)熱器、周向（旁路）密封和相關(guān)靜密封進(jìn)行針對性設(shè)計，實施漏風(fēng)率控制；1）運(yùn)行調(diào)節(jié)及維護(hù)注意事項1）除精心控制好徑向、軸向密封間隙外，還要注意控制好密封板的端部密封。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合。四川化工空氣預(yù)熱器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川化工空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220411145419922/7208407.jpg"></div><p> 比例可根據(jù)具體情況調(diào)整）。6．反復(fù)循環(huán)清洗到推薦的清洗時間。隨著循環(huán)的進(jìn)展和沉積物的溶解，反應(yīng)時產(chǎn)生的氣體也會增多，應(yīng)隨時通過放氣閥將多余的空氣排出。隨著空氣的排出，換熱器內(nèi)的空間會增大，可加入適當(dāng)?shù)乃?，不要一開始就注入大量的水，可能會造成水的溢出。7．循環(huán)中要定時檢查清洗劑的有效性。可以使用PH試紙測定。如果溶液保持在PH值2‐3時，那么清洗劑仍然有效。如果清洗劑的PH值達(dá)到5‐6時，需要再添加適量清洗劑。**終溶液的PH值在2‐3時保持30分鐘沒有明顯變化，證明達(dá)到了清洗效果。注意：清洗劑可以回收后重復(fù)使用，排放會造成浪費(fèi)。8．達(dá)到清洗時間后，回收清洗溶液。并用清水反復(fù)沖洗交換器，直到?jīng)_洗干凈至中性，用PH試紙測定PH值6~7。9．完成清洗后既可開機(jī)運(yùn)行。也可以打壓試驗，看是否有泄漏現(xiàn)象。如果有泄漏，可以采用高分子復(fù)合材料進(jìn)行修復(fù)保護(hù)。并且可以**延長設(shè)備的使用壽命。⒑設(shè)備穩(wěn)定后，記下當(dāng)前的介質(zhì)過流量、工作壓力、換熱效率等數(shù)據(jù)。⒒比較清洗前和清洗后數(shù)值的變化，就可以計算出該企業(yè)每個小時所節(jié)省的電費(fèi)、煤費(fèi)等生產(chǎn)費(fèi)用及提高的工作效率，這正是企業(yè)采用技術(shù)應(yīng)用的價值補(bǔ)償。山西本地空氣預(yù)熱器板式空氣預(yù)熱器使用在制氫轉(zhuǎn)化爐。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川化工空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405039599609/9723902.jpg"></div><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，正常兩臺空預(yù)器沖洗合格需要進(jìn)行60小時左右。沖洗結(jié)束后一定要進(jìn)行充分干燥，防止啟動時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)計條件，每臺爐SCR系統(tǒng)都有設(shè)計比較大噴氨量。當(dāng)自調(diào)或人工調(diào)整時，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)*靠過噴氨量來實現(xiàn)。加強(qiáng)對噴氨格柵均勻性的調(diào)整制定噴氨格柵定期調(diào)整試驗機(jī)制，每次檢修或每半年均應(yīng)對噴氨格柵進(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)及時修復(fù)，避免長時間不均勻運(yùn)行。定期更換催化劑層建立各爐催化劑臺賬，對催化劑進(jìn)行全壽命管理，及時更換失效的催化劑，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。</p><p style="text-indent:25px">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、制造、安裝和服務(wù)的中德合資企業(yè)。秉承“誠信為本精益求精”的經(jīng)營理念，始終堅持以先進(jìn)的技術(shù)、優(yōu)良的品質(zhì)、持續(xù)的改進(jìn)和周到的服務(wù)，滿足或超越客戶需求。從產(chǎn)品的設(shè)計、制造、檢驗到服務(wù)均有完善的體系保證，公司通過了ISO 9001質(zhì)量管理體系、ISO 14001環(huán)境管理體系、OHSAS 18001職業(yè)健康安全管理體系認(rèn)證，切實保證了顧客、員工、社會對產(chǎn)品和服務(wù)質(zhì)量、職業(yè)健康、安全、環(huán)境等方面的要求。什么是板式空氣預(yù)熱器？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川化工空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220410559414062/9489232.jpg"></div><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。***氫氨的形成同時依賴于溫度。當(dāng)煙氣溫度略低于***氫氨的初始形成溫度時，***氫氨即開始形成。當(dāng)煙氣溫度下降到低于***氫氨形成的初始溫度25℃時，***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。NH3/SO3摩爾比***氫氨對***氨的形成起到促進(jìn)的作用，同時***氨也能對***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，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)熱器能夠在相同的設(shè)計條件下提高空氣預(yù)熱溫度。山西本地空氣預(yù)熱器</p><p style="text-indent:25px">板式空氣預(yù)熱器有正反菱形波紋板。四川化工空氣預(yù)熱器</p><p> 對于因氨量瞬間過大造成***氫氨堵塞空預(yù)器情況時有發(fā)生，為了預(yù)防空預(yù)器及風(fēng)煙系統(tǒng)的安全、經(jīng)濟(jì)運(yùn)行，應(yīng)該制定定期工作，各單元機(jī)組均應(yīng)按規(guī)定認(rèn)真執(zhí)行。每月20日中班，選取負(fù)荷大于80%階段（250MW、480MW），進(jìn)行兩個小時空預(yù)器升溫工作，A、B兩側(cè)分別進(jìn)行。減小送風(fēng)量（或增大引風(fēng)機(jī)開度）以提高該側(cè)煙溫至160~170℃之間，注意比較高點不能超過170℃（針對布袋除塵器，排煙溫度不可超過180℃。若無此限值，則應(yīng)升高至230℃更佳）。每年10月底至4月初暖風(fēng)器轉(zhuǎn)入運(yùn)位后，升溫期間利用該側(cè)暖風(fēng)器，根據(jù)煙溫變化情況和預(yù)熱器電流變化情況提高送風(fēng)溫度至30~40℃之間，其余時間不用投入暖風(fēng)器。4.升溫消除空預(yù)器壓差增大方法及注意事項鍋爐運(yùn)行中，預(yù)熱器阻力超過，應(yīng)開始執(zhí)行以下措施：投入該側(cè)暖風(fēng)器，根據(jù)煙溫變化情況和預(yù)熱器電流變化情況提高送風(fēng)溫度至30~40℃之間（暖風(fēng)器停運(yùn)期間除外）。減小送風(fēng)量（增大引風(fēng)機(jī)開度）以提高該側(cè)煙溫至160~165℃之間，注意比較高點不能超過170℃（針對布袋除塵器，排煙溫度不可超過180℃，若無此限值，則應(yīng)升高至230℃更佳）。加強(qiáng)預(yù)熱器蒸汽吹灰頻次（投入空預(yù)器蒸汽連續(xù)吹灰），直至阻力下降至（75%以上負(fù)荷）以下。四川化工空氣預(yù)熱器</p><p style="text-indent:25px">上海板換機(jī)械設(shè)備有限公司始建于2005-11-30，坐落于山陽鎮(zhèn)山寧路99號，現(xiàn)有員工101~300人余人。致力于創(chuàng)造***的產(chǎn)品與服務(wù)，以誠信、敬業(yè)、進(jìn)取為宗旨，以建上海板換產(chǎn)品為目標(biāo)，努力打造成為同行業(yè)中具有影響力的企業(yè)。公司以用心服務(wù)為重點價值,希望通過我們的專業(yè)水平和不懈努力,將化工設(shè)備、環(huán)保設(shè)備及配件的制造加工及銷售，機(jī)械設(shè)備設(shè)計安裝（除特種設(shè)備外），在金山區(qū)山陽鎮(zhèn)山寧路99號內(nèi)從事自有房屋租賃。【依法須經(jīng)批準(zhǔn)的項目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動】。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。等業(yè)務(wù)進(jìn)行到底。上海板換機(jī)械設(shè)備有限公司主營業(yè)務(wù)涵蓋板式換熱器機(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，堅持“質(zhì)量優(yōu)先、質(zhì)量服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1053163.html</p></div></div></div></div></div><div id="8olszgd" class="page-right twoColRt"><div id="cwdfm3s" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="p3asp8r" class="recomPic likePro"><a 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