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class="leftbox clearfix"><h1>遼寧質(zhì)量空氣預(yù)熱器誠信經(jīng)營上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="cwyfr42" class="proBig"><div id="n88nz93" 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="v2c2ofm" 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="k3pmyx3" 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>遼寧質(zhì)量空氣預(yù)熱器,空氣預(yù)熱器</p><p><span>***更新：</span>2021-01-10 10:09:26</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="eik8j75" 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="aug8vpb" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="jdfmtmd" class="box"><p><p> 同一單元兩臺(tái)機(jī)組不可同時(shí)進(jìn)行升溫工作，20日完不成，可以由21日中班完成，月末上報(bào)績效分爐分AB側(cè)統(tǒng)計(jì)。加強(qiáng)監(jiān)視煙溫測(cè)點(diǎn)，尤其在負(fù)荷變化及啟停磨期間，確保排煙溫度測(cè)點(diǎn)比較高點(diǎn)不得超過170℃。調(diào)節(jié)送吸風(fēng)量應(yīng)緩慢進(jìn)行，溫升5~10℃暫停調(diào)節(jié)穩(wěn)定20分鐘以上，方可繼續(xù)升溫。注意調(diào)節(jié)煙溫變化速率。加強(qiáng)對(duì)空預(yù)器電流監(jiān)測(cè)，預(yù)熱器電流一般不得超過正常值5A以上，否則穩(wěn)定煙溫待空預(yù)器受熱均勻。用于在沖洗過程中監(jiān)視煙道中的積灰和排污情況。關(guān)閉高壓水管路中通往#1機(jī)組的閥門，打開通往#2機(jī)組的閥門和通往#2機(jī)A側(cè)的閥門，關(guān)閉通往#2機(jī)B側(cè)的閥門關(guān)閉。還要關(guān)閉A側(cè)底部蒸汽進(jìn)口管道上的閥門，防止高壓水沖洗時(shí)將蒸汽帶入。高壓水泵可遠(yuǎn)方或就地操作，以下*以就地操作為例。在就地控制柜上啟動(dòng)高壓水泵（#1和#2機(jī)組共用一臺(tái)高壓水泵），就地控制柜帶有邏輯控制功能，在程控作用下，水泵啟動(dòng)40-60S后氣動(dòng)卸荷閥自動(dòng)關(guān)閉，然后人工調(diào)節(jié)帶有紅色手柄的調(diào)壓閥，將水泵緩慢升壓至20MPa，遼寧質(zhì)量空氣預(yù)熱器，遼寧質(zhì)量空氣預(yù)熱器，遼寧質(zhì)量空氣預(yù)熱器。吹灰器可遠(yuǎn)方或就地操作，以下*以就地操作為例。在吹灰器就地控制箱上將密封風(fēng)機(jī)停止，選擇“高壓水在線吹掃”并啟動(dòng)，就地控制箱柜帶有邏輯控制功能，在程控作用下。板式空氣預(yù)熱器是一種電力工業(yè)經(jīng)常使用的節(jié)能、環(huán)保設(shè)備。遼寧質(zhì)量空氣預(yù)熱器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧質(zhì)量空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220415160732422/6470394.jpg"></div><p> 空氣預(yù)熱器換熱原理空氣預(yù)熱器是布置在尾部煙道上利用排煙余熱將空氣預(yù)熱到所需溫度的熱交換器。當(dāng)空預(yù)器換熱元件經(jīng)過煙氣側(cè)時(shí)，煙氣攜帶的一部分熱量就傳遞給換熱元件；而換熱元件經(jīng)過空氣側(cè)時(shí)又把熱量傳遞給空氣。這樣空預(yù)器回收了煙氣的熱量，降低了排煙溫度，提高了燃料與空氣的初始溫，強(qiáng)化了燃料的燃燒，因而進(jìn)一步提高了鍋爐效率。換熱元件換熱元件由薄鋼板制成，一片波紋板上有斜波．另一片上除了方向不同的斜波外還有直槽，帶斜波的波紋板和帶有斜波和直槽的定位板交替層疊．直槽與轉(zhuǎn)子軸線方向平行布置、使波紋板和定位板之間保持適當(dāng)?shù)募措x。斜波與直槽呈30o夾角．使得空氣或煙氣流經(jīng)換熱元件時(shí)形成較大的紊流，以改換換熱效果。由于冷端（即煙氣出口端和空氣入口端）受溫度和燃燒條件的影響**易腐蝕，因而換熱元件分層布置，其中，熱端和中溫段換熱元件由低碳鋼制成，而冷端換熱元件則由等同考登鋼制成。換熱元件均裝在元件盒內(nèi)以便于安裝和取出。其中，熱端和中溫段換熱元件垂直向上抽取。熱端：厚，深350mm，低碳鋼中溫端：厚，深1000mm，低碳鋼冷端：厚，深950mm，等同烤登鋼2、轉(zhuǎn)子連在中心筒輪轂上的低碳鋼主隔板為轉(zhuǎn)子的基本構(gòu)架。天津板式空氣預(yù)熱器在一些焚燒爐系統(tǒng)中用板式空氣預(yù)熱器提高系統(tǒng)效率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧質(zhì)量空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220412821406250/101176.jpg"></div><p> 在《火力發(fā)電機(jī)節(jié)能降耗技術(shù)導(dǎo)則》、《300MW鍋爐及輔機(jī)節(jié)能降耗技術(shù)導(dǎo)則》和《燃煤電廠節(jié)能降耗技術(shù)推廣應(yīng)用目錄》推薦的相關(guān)技術(shù)基礎(chǔ)上，對(duì)空預(yù)器密封治理的相關(guān)技術(shù)和注意事項(xiàng)進(jìn)行介紹：（1）密封方式簡介1)雙道密封改造：將轉(zhuǎn)子隔倉數(shù)增加一倍，通常由24分倉改為48分倉，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。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(shí)有效，大機(jī)組無LCS（間隙自調(diào)裝置）時(shí)熱端效果不明顯；運(yùn)行時(shí)間長后接觸式密封片易磨損失效。 </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。板式空氣預(yù)熱器用在哪里？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧質(zhì)量空氣預(yù)熱器,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405031435547/8438841.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。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，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。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。天津板式空氣預(yù)熱器</p><p style="text-indent:25px">板式空氣預(yù)熱器廠家有哪些？遼寧質(zhì)量空氣預(yù)熱器</p><p> 通過調(diào)節(jié)固定在頂部結(jié)構(gòu)上的螺栓和支臂的相對(duì)位置來改變轉(zhuǎn)子頂部軸承中心的位置，從而達(dá)到調(diào)整轉(zhuǎn)子中心線位置的目的。頂部軸承支臂與頂部結(jié)構(gòu)用8個(gè)鎖緊螺栓和上下墊板定位固足，待頂部軸承位置**終調(diào)整就位后，即可將上述墊板與頂部結(jié)構(gòu)的翼板焊在一起。頂部軸承采用油浴潤滑，潤滑油等級(jí)與底部推力軸承相同。頂部軸承箱上有加油孔、注油器、油位計(jì)、呼吸器和放油塞。另外還設(shè)有用于安裝測(cè)溫元件的1/2”BSP螺紋孔。12、轉(zhuǎn)子密封系統(tǒng)空預(yù)器的密封系統(tǒng)由轉(zhuǎn)子徑向、軸向、環(huán)向以及轉(zhuǎn)子中心筒密封組成。13、徑向密封徑向密封片安裝在轉(zhuǎn)子徑向隔板的上、下緣。密封片由，與6mm厚的低碳鋼壓板一起通過自鎖螺母固定在轉(zhuǎn)子隔板上。所有密封片均設(shè)計(jì)呈單片直葉型．徑向密封片用來減小空氣到煙氣的直接漏風(fēng)。14、軸向密封軸向密封片和徑向密封片一起，用于減小轉(zhuǎn)子和密封擋板之間的間隙。軸向密封片由，安裝在轉(zhuǎn)子徑向隔板的垂直外緣處，其冷態(tài)位置的設(shè)定應(yīng)保證鍋爐帶負(fù)荷運(yùn)行以及停爐時(shí)無冷風(fēng)時(shí)與軸向密封板之間保持**小的密封間隙。軸向密封的固定方式與徑向密封片相同。軸向密封片供貨時(shí)兩端均留有修整余量，現(xiàn)場可根據(jù)轉(zhuǎn)子外緣角鋼**終的實(shí)際位置進(jìn)行栽切。遼寧質(zhì)量空氣預(yù)熱器</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2786564.html</p></div></div></div></div></div><div id="ap7elkg" class="page-right twoColRt"><div id="mwtvctk" class="box01 margin10 clearfix"><h3><a 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