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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>?天津空氣預(yù)熱器的用途和特點(diǎn) 上海板換機(jī)械設(shè)備供應(yīng)</p><div id="3rplctf" class="leftbox clearfix"><h1>天津空氣預(yù)熱器的用途和特點(diǎn) 上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="xfofbse" class="proBig"><div id="l8rgieg" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zmgs7hq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="txeg7md" 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>天津空氣預(yù)熱器的用途和特點(diǎn),空氣預(yù)熱器</p><p><span>***更新：</span>2020-08-13 04:12:12</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="sqm3qxz" 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="73am78y" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="yl8o8io" class="box"><p><p> 兩種流體分別在管程和殼程內(nèi)流動(dòng)，總體上是錯(cuò)流流動(dòng)，對數(shù)平均溫差修正系數(shù)小，而板式換熱器多是并流或逆流流動(dòng)方式，其修正系數(shù)也通常在，此外，冷、熱流體在板式換熱器內(nèi)的流動(dòng)平行于換熱面、無旁流，因此使得板式換熱器的末端溫差小，對水換熱可低于1℃，而管殼式換熱器一般為5℃fff.板式換熱器c.占地面積小。板式換熱器結(jié)構(gòu)緊湊。k.單位長度的壓力損失大；由于傳熱面之間的間隙較小，天津空氣預(yù)熱器的用途和特點(diǎn)，傳熱面上有凹凸，因此比傳統(tǒng)的光滑管的壓力損失大。l.不易結(jié)垢；由于內(nèi)部充分湍動(dòng)，天津空氣預(yù)熱器的用途和特點(diǎn)，所以不易結(jié)垢，其結(jié)垢系數(shù)*為管殼式換熱器的1/3~1/，可能發(fā)生泄露；板式換熱器采用密封墊密封，工作壓力一般不宜超過，介質(zhì)溫度應(yīng)在低于250℃以下，否則有可能泄露。n.易堵塞；由于板片間通道很窄，一般只有2~5mm，當(dāng)換熱介質(zhì)含有較大顆?；蚶w維物質(zhì)時(shí)，容易堵塞板間通道。板式換熱器基本分類編輯一般情況下，我們主要根據(jù)結(jié)構(gòu)來區(qū)分板式換熱器，也就是根據(jù)外形來區(qū)分，可分為四大類：①可拆卸板式換熱器（又叫帶密封墊片的板式換熱器），天津空氣預(yù)熱器的用途和特點(diǎn)、②焊接板式換熱器、③螺旋板式換熱器、④板卷式換熱器（又叫蜂窩式換熱器）。其中。板式空氣預(yù)熱器適用哪些工況？天津空氣預(yù)熱器的用途和特點(diǎn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津空氣預(yù)熱器的用途和特點(diǎn),空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg"></div><p> 工業(yè)生產(chǎn)過程中會(huì)產(chǎn)生大量的廢氣以及乙二醇、一氧化碳、二氧化硫、碳?xì)浠衔锏葘θ梭w有害的物質(zhì)。將乙二醇廢氣通入450~700℃溫度范圍的燃燒裝置中，將廢氣充分燃燒，以達(dá)到廢氣外排的標(biāo)準(zhǔn)。為充分利用系統(tǒng)中煙氣的余熱，焚燒爐前設(shè)有煙氣-廢氣換熱器，用以回收高溫?zé)煔鉄崮埽A(yù)熱廢氣溫度。由于煤氣的特殊性質(zhì)，換熱器必須保證0泄露；煤氣預(yù)熱器運(yùn)行壓力通常在10kpa左右，因此設(shè)計(jì)壓力一般為20kpa；高爐煤氣含硫量較低，一般煙氣酸**溫度在100℃左右，換熱器低溫段需使用空氣膜技術(shù)提升壁溫，避免可能的酸**腐蝕；設(shè)計(jì)時(shí)應(yīng)注意兩臺(tái)換熱器熱側(cè)阻力分配。平板板型可以使用空氣膜技術(shù)，提高系統(tǒng)安全性；平板定距柱式設(shè)計(jì)可以靈活控制設(shè)計(jì)流速及阻力損失；流場分布均勻，不易積灰結(jié)垢，便于清潔維護(hù)；占地面積小，尤其適合安裝空間有限的改造項(xiàng)目。云南**空氣預(yù)熱器板式空氣預(yù)熱器有什么特點(diǎn)？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津空氣預(yù)熱器的用途和特點(diǎn),空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405039677734/951043.jpg"></div><p> 4、使用壽命長：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?？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、***消毒、余熱回收等各種情況。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。</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)的檢測維護(hù)，保證指示準(zhǔn)確。空預(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。部分電廠聘請專業(yè)清洗公司用高壓射流清洗車對空預(yù)器蓄熱元件在不吊出的情況下進(jìn)行沖洗?？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。哪里生產(chǎn)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="天津空氣預(yù)熱器的用途和特點(diǎn),空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220410558876953/2374940.jpg"></div><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)熱器使用在加熱爐。河北空氣預(yù)熱器加盟</p><p style="text-indent:25px">板式空氣預(yù)熱器廠家。天津空氣預(yù)熱器的用途和特點(diǎn)</p><p> 從而造成NH3泄漏以及NOx脫除不完全，使其易被氧化為SO3。SO3在空預(yù)器冷段(溫度177～232℃)濃縮成酸霧，腐蝕受熱面。在SCR反應(yīng)器出口SO3與逃逸的氨反應(yīng)生成***氫氨。在SO2氧化率的控制方面，主要取決于催化劑V2O5中的含量，釩的擔(dān)載量不能太高，通常控制在1%左右可減少SO2氧化。此外，采用提高催化劑活性組分。如WO3)含量，亦可***SO2氧化。這一點(diǎn)在脫硝系統(tǒng)安裝完成后，運(yùn)行中基本沒有調(diào)節(jié)手段。煙氣流場優(yōu)化煙氣流場的不均勻?qū)?dǎo)致脫硝系統(tǒng)出口氨逃逸率局部超標(biāo)，加快空預(yù)器傳熱元件上***氫氨的沉積。在氨逃逸量的控制方面可利用計(jì)算流體力學(xué)軟件優(yōu)化設(shè)計(jì)，對SCR脫硝裝置入口煙氣流量和流速分布進(jìn)行模擬，確定導(dǎo)流葉片的類型、數(shù)量和位置，同時(shí)，在運(yùn)行中針對經(jīng)常的運(yùn)行工況進(jìn)行調(diào)勻試驗(yàn)。以使入口煙氣流速、溫度和濃度均勻；同時(shí)調(diào)整噴氨格柵各個(gè)噴口，使NH3混合均勻，保證脫硝出口的NOx含量和NH3均勻，避免局部氨逃逸量超標(biāo)，**終減少氨逃逸量。運(yùn)行中，由于機(jī)組負(fù)荷變化較大，雖然經(jīng)過調(diào)勻試驗(yàn)，但無法保證在所有的工況下煙氣流場均穩(wěn)定均勻。因此，必然發(fā)生氨逃逸率局部偏大，長期低負(fù)荷運(yùn)行將造成空預(yù)器堵塞的可能性加大。天津空氣預(yù)熱器的用途和特點(diǎn)</p><p style="text-indent:25px">上海板換機(jī)械設(shè)備有限公司坐落在山陽鎮(zhèn)山寧路99號(hào)，是一家專業(yè)的化工設(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(jì)安裝（除特種設(shè)備外），在金山區(qū)山陽鎮(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)部門批準(zhǔn)后方可開展經(jīng)營活動(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。公司。公司目前擁有101~300人員工，為員工提供廣闊的發(fā)展平臺(tái)與成長空間，為客戶提供高質(zhì)高效的產(chǎn)品服務(wù)，深受員工與客戶好評。公司業(yè)務(wù)范圍主要包括：[ "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" ]等。公司奉行顧客至上、質(zhì)量為首、的經(jīng)營宗旨，深受客戶好評。目前公司已經(jīng)成為[ "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" ]的**企業(yè)，正積蓄著更大的能量，向更廣闊的空間、更***的領(lǐng)域拓展。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/897951.html</p></div></div></div></div></div><div id="bubs3ja" class="page-right twoColRt"><div id="g8ev9pw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="uskrgmn" class="recomPic likePro"><a 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