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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="znfh7tn" 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>北京空氣預(yù)熱器市場(chǎng)前景如何,空氣預(yù)熱器</p><p><span>***更新：</span>2021-01-06 09:07:03</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="p3wydpw" 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="qkczrt2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="rk3qkr3" class="box"><p><p> 在選擇傳熱元件時(shí)，要考慮到用戶的實(shí)際情況，從設(shè)備長(zhǎng)期安全穩(wěn)定運(yùn)行的角度出發(fā)，適應(yīng)煤種在一定范圍內(nèi)的變化，確保在使用過程中不堵灰，保持較低的排煙溫度，保證在長(zhǎng)時(shí)間的運(yùn)行過程中，鍋爐的效率保持在較高水平。而不能*考慮單一設(shè)計(jì)煤種，在燃料變化后，無法滿足機(jī)組經(jīng)濟(jì)、穩(wěn)定和安全運(yùn)行的需要。元件板型的選擇需同時(shí)考慮傳熱效果、流通阻力和堵灰可能三個(gè)因素。采用傳熱效果好的傳熱元件能降**造成本，但是不一定流通阻力小或耐堵灰，造成運(yùn)行成本上升。例如某公司在預(yù)熱器冷段采用HS7、HS8等DU系列波形元件，雖然預(yù)熱器轉(zhuǎn)子重量變輕，但是當(dāng)燃料灰分變多，或用于SCR預(yù)熱器時(shí)，很容易造成堵灰，使阻力上升。傳熱效果和流通阻力往往構(gòu)成一對(duì)矛盾，北京空氣預(yù)熱器市場(chǎng)前景如何，北京空氣預(yù)熱器市場(chǎng)前景如何，因?yàn)樘岣邠Q熱效果是通過加強(qiáng)氣流通道的局部紊流狀況，即加大換熱表面波紋密度或傾斜角，北京空氣預(yù)熱器市場(chǎng)前景如何，但這種方式也同時(shí)加大了流通阻力系數(shù)。在一些焚燒爐系統(tǒng)中用板式空氣預(yù)熱器提高系統(tǒng)效率。北京空氣預(yù)熱器市場(chǎng)前景如何</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京空氣預(yù)熱器市場(chǎng)前景如何,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220424328769531/3189655.jpg"></div><p> 國(guó)內(nèi)部分進(jìn)行煙氣脫硝改造機(jī)組對(duì)空預(yù)器低溫段元件鍍搪瓷，空預(yù)器冷段換熱元件即使采用鍍搪瓷元件，如果沒有有效的吹灰清洗裝置相配套，同樣會(huì)發(fā)生嚴(yán)重的堵灰。搪瓷鍍層能***降低***氫氨的結(jié)垢速率，但如鍍層因加工質(zhì)量而損裂，將不利于防止***氫氨的吸附。氨逃逸濃度過高氨逃逸濃度越大，空預(yù)器阻力增加的越快。煙氣脫硝裝置運(yùn)行過程中，除了極端工況造成短時(shí)間內(nèi)過量噴氨外。當(dāng)氨噴射系統(tǒng)設(shè)計(jì)不當(dāng)、煙氣流場(chǎng)分布不均勻或者噴氨格柵局部噴嘴被堵塞時(shí)，也會(huì)造成反應(yīng)器出口局部區(qū)域的氨逃逸過量。不同程度的氨逃逸是造成空預(yù)器堵塞的主要原因。對(duì)于煙氣脫硝裝置，除通過氨噴射系統(tǒng)、導(dǎo)流系統(tǒng)、混合系統(tǒng)的設(shè)計(jì)提高煙氣流場(chǎng)的分布均勻性外，日常運(yùn)行過程中，還需嚴(yán)格控制噴氨量，防止過度噴氨，并定期進(jìn)行氨噴射系統(tǒng)的噴氨流量平衡調(diào)整，防止局部噴氨過大造成氨逃逸濃度升高。3.空預(yù)器堵塞的預(yù)防為了更好地控制空預(yù)器堵塞情況，必須采取技術(shù)手段，杜絕空預(yù)器堵塞的原因，從根本上降低或者杜絕空預(yù)器堵塞情況發(fā)生。SCR**排放前的一般手段冬季加強(qiáng)暖風(fēng)器綜合治理利用停爐機(jī)會(huì)對(duì)暖風(fēng)器進(jìn)行改造，以徹底解決因暖風(fēng)器疏水不暢通引起振動(dòng)而引起內(nèi)漏?？煽紤]對(duì)暖風(fēng)器進(jìn)行改造。云南化工空氣預(yù)熱器板式空氣預(yù)熱器適用哪些工況？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京空氣預(yù)熱器市場(chǎng)前景如何,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405039599609/9723902.jpg"></div><p> 機(jī)械制造行業(yè)的應(yīng)用機(jī)械制造行業(yè)的應(yīng)用換熱器在機(jī)械行業(yè)有著更普遍的應(yīng)用，如各種機(jī)械設(shè)備的潤(rùn)滑油/液壓油/萃火油/乳液冷卻系統(tǒng)，機(jī)器運(yùn)轉(zhuǎn)過程中，液壓油在頻繁工作后，油溫會(huì)升高，為保證工藝，需將回流液壓油冷卻降溫后循環(huán)使用。此工藝中，對(duì)于換熱器系統(tǒng)波動(dòng)壓力的能力要求高，“面接觸式”波紋截面設(shè)計(jì)，使得換熱器自身抗壓力沖擊的能力增強(qiáng)，集中供暖應(yīng)用領(lǐng)域解決方案集中供暖應(yīng)用領(lǐng)域解決方案集中供熱領(lǐng)域，熱能有大型熱源廠通過一次側(cè)管網(wǎng)將熱源輸送至各供暖區(qū)域的熱交換機(jī)組，一次介質(zhì)在熱交換機(jī)組處將熱能傳遞給二次側(cè)介質(zhì)并降溫后返回?zé)嵩磸S。二次側(cè)介質(zhì)在熱交換機(jī)組取得熱能后根據(jù)需要調(diào)整壓力和溫度后，由機(jī)組的二次循環(huán)泵驅(qū)動(dòng)，通過二次側(cè)管網(wǎng)將熱能輸送至終端用戶?；娡啃袠I(yè)換熱器應(yīng)用領(lǐng)域化工噴涂行業(yè)換熱器應(yīng)用領(lǐng)域噴涂工藝目前應(yīng)用于各大行業(yè)，比如家具、汽車制造、金屬制品加工等。噴涂工藝使用的涂料中大多含有揮發(fā)份和不揮發(fā)份組分，不揮發(fā)份包括成膜物質(zhì)和輔助成膜物質(zhì)，揮發(fā)份指溶劑和稀釋劑（主要以二甲苯為主）。噴涂工藝產(chǎn)生的揮發(fā)性有機(jī)廢氣VOCs大多來自溶劑和稀釋劑的揮發(fā)。 </p><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?duì)人體有害的物質(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(chǎng)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。板式空氣預(yù)熱器有換熱模塊組合。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京空氣預(yù)熱器市場(chǎng)前景如何,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405039677734/951043.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)。板式空氣預(yù)熱器是一種節(jié)能環(huán)保設(shè)備，使用平板或波紋板，板片周邊通過焊接或機(jī)械固定形成板束，整機(jī)采用積木式設(shè)計(jì)，組合方式靈活多變，結(jié)構(gòu)適應(yīng)性強(qiáng)，特有的空氣膜TM技術(shù)能夠有效解決**腐蝕問題，適用于煉油、化工、鋼鐵、冶金、電力工業(yè)等行業(yè)?？蓪?shí)現(xiàn)模塊化、組合化、大型化，空間尺寸調(diào)節(jié)靈活板式換熱元件的傳熱系數(shù)比管式傳熱元件高1-3倍，且可根據(jù)冷、熱介質(zhì)換熱前后的體積變化，采用流道間距與流動(dòng)長(zhǎng)度的優(yōu)化組合，實(shí)現(xiàn)傳熱性能與壓降的比較好化設(shè)計(jì)換熱流道內(nèi)無死區(qū)，不易積灰，即便積灰也便于清洗，且可做到在線清洗對(duì)不同介質(zhì)、工況可針對(duì)性的選擇適用材料，從而保證設(shè)備壽命，而且可采用高低溫分級(jí)設(shè)計(jì)，不同溫度段可使用不同材料。上海板換機(jī)械設(shè)備有限公司專業(yè)生產(chǎn)板式空氣預(yù)熱器設(shè)備。浙江空氣預(yù)熱器的用途和特點(diǎn)</p><p style="text-indent:25px">空氣預(yù)熱器的作用是使高溫?zé)煔饫鋮s，減少有害氣體排放。北京空氣預(yù)熱器市場(chǎng)前景如何</p><p> 一般各自廠家根據(jù)自己的板型都有自己的選型軟件。國(guó)際上通用的軟件有HTRI，HTFS等。通用的計(jì)算軟件公開的很少，國(guó)內(nèi)一些網(wǎng)站如換熱支持網(wǎng)站提供了提供了板式換熱器的在線計(jì)算軟件，可供參考使用。板式換熱器常見故障編輯外漏主要表現(xiàn)為滲漏（量不大，水滴不連續(xù)）和泄漏（量較大，水滴連續(xù)）。外漏出現(xiàn)的主要部位為板片與板片之間的密封處、板片二道密封泄漏槽部位以及端部板片與壓緊板內(nèi)側(cè)。串液主要特征為壓力較高一側(cè)的介質(zhì)串入壓力較低一側(cè)的介質(zhì)中，系統(tǒng)中會(huì)出現(xiàn)壓力和溫度的異常。如果介質(zhì)具有腐蝕性，還可能導(dǎo)致板式換熱器密封墊片的腐蝕。串液通常發(fā)生在導(dǎo)流區(qū)域或者二道密封區(qū)域處。壓降大介質(zhì)進(jìn)、出口壓降超過設(shè)計(jì)要求，甚至高出設(shè)計(jì)值許多倍，嚴(yán)重影響系統(tǒng)對(duì)流量和溫度的要求。在供暖系統(tǒng)中，若熱側(cè)壓降過大，則一次側(cè)流量將嚴(yán)重不足，即熱源不夠，導(dǎo)致二次側(cè)出溫度不能滿足要求。供熱溫度不能滿足要求主要特征是出口溫度偏低，達(dá)不到設(shè)計(jì)要求。面積相同換熱量的板式換熱器*為管殼式換熱器的1/5。3、容易清洗拆裝方便：板式換熱器靠夾緊螺栓將夾固板板片夾緊，因此拆裝方便，隨時(shí)可以打開清洗，同時(shí)由于板面光潔，湍流程度高，不易結(jié)垢。北京空氣預(yù)熱器市場(chǎng)前景如何</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2728385.html</p></div></div></div></div></div><div id="g8vsu7f" class="page-right twoColRt"><div id="y7dvszb" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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