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當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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>?貴州空氣預(yù)熱器代理服務(wù)為先上海板換機(jī)械設(shè)備供應(yīng)</p><div id="aoqs8lg" class="leftbox clearfix"><h1>貴州空氣預(yù)熱器代理服務(wù)為先上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="en7cedk" class="proBig"><div id="mvfmgnp" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220410558876953/2374940.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="n88qxub" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220410558876953/2374940.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="34ahoqx" 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>貴州空氣預(yù)熱器代理,空氣預(yù)熱器</p><p><span>***更新：</span>2020-12-24 12:07:13</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="icu7t78" 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="zxzwoax" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="e22iax2" class="box"><p><p> 吹灰器先連續(xù)前進(jìn)至**前端，然后按步退10mm停留52s（轉(zhuǎn)子轉(zhuǎn)動(dòng)一圈）的方式循環(huán)吹掃，直至退到***端執(zhí)行完一個(gè)吹掃流程。一個(gè)吹掃流程的用時(shí)約。在就地控制柜上停止高壓水泵，在程控作用下，氣動(dòng)卸荷閥先打開，延時(shí)120s后電機(jī)停止。關(guān)閉高壓水管路中通往#2機(jī)組的閥門和通往A側(cè)空預(yù)器的閥門。打開底部吹灰器蒸汽進(jìn)口管道上的閥門，接通蒸汽吹灰通道。，對(duì)B側(cè)空預(yù)器進(jìn)行沖洗。注意事項(xiàng)：，可先短時(shí)間地進(jìn)行試驗(yàn)性沖洗。在檢查機(jī)組運(yùn)行情況正常后，再逐步延長(zhǎng)試驗(yàn)時(shí)間，觀察空預(yù)器驅(qū)動(dòng)電機(jī)電流、空預(yù)器阻力、排煙溫度、煙道排污情況及除塵器運(yùn)行是否正常。觀察和記錄高壓水沖洗時(shí)間、壓力、空預(yù)器在沖洗前后機(jī)組負(fù)荷、煙氣和空氣側(cè)差壓、送風(fēng)機(jī)和引風(fēng)機(jī)電流、爐膛壓力、熱風(fēng)和排煙溫度等參數(shù)?！妫瑧?yīng)該及時(shí)調(diào)整沖洗側(cè)煙氣流量，提高煙溫，若持續(xù)下降至110℃，則應(yīng)停止在線水沖洗。，即使在觀察到空預(yù)器阻力不再持續(xù)下降時(shí)，仍需再?zèng)_洗一到兩次。換熱元件沖洗得越干凈，下次沖洗的周期越長(zhǎng)，應(yīng)在就地控制箱上將密封風(fēng)機(jī)啟動(dòng)，貴州空氣預(yù)熱器代理，以保護(hù)噴嘴不被堵塞。（進(jìn)、出口有壓力表），貴州空氣預(yù)熱器代理，當(dāng)進(jìn)水壓力小于3bar時(shí)，貴州空氣預(yù)熱器代理，應(yīng)停泵清洗濾網(wǎng)，以免吸水不暢引起泵的異常震動(dòng)。?？諝忸A(yù)熱器的作用是使高溫?zé)煔饫鋮s，減少有害氣體排放。貴州空氣預(yù)熱器代理</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州空氣預(yù)熱器代理,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220410558876953/2374940.jpg"></div><p> 1防止空預(yù)器堵灰、腐蝕措施適應(yīng)范圍：空預(yù)器堵灰、腐蝕嚴(yán)重的鍋爐技術(shù)原理與要點(diǎn)：空預(yù)器綜合冷端溫度（空預(yù)器進(jìn)口空氣溫度與煙氣出口平均溫度之和）對(duì)冷端結(jié)露和腐蝕、堵灰影響較大?？疹A(yù)器出口綜合冷端溫度如低于酸**溫度，空預(yù)器冷端很快就會(huì)積灰，一周內(nèi)就形成極難去除的板結(jié)垢。冷端溫度目標(biāo)值應(yīng)根據(jù)“綜合冷端溫度與燃料含硫量變化曲線”確定，并根據(jù)燃用煤種性質(zhì)進(jìn)行修正，除收到基全硫（St,ar）＜，燃用其他煤種原則上不要低于130℃。煙氣酸**主要受燃煤中的硫分、灰分、灰成分（特別是灰中Ca含量）、水分和發(fā)熱量的影響，灰分和灰中Ca含量越高，酸**越低；硫分和水分越高，酸**越高。由于不同酸**計(jì)算經(jīng)驗(yàn)公式計(jì)算出的數(shù)值偏差較大，對(duì)燃用煤種相對(duì)穩(wěn)定的鍋爐，應(yīng)通過(guò)調(diào)整冷端溫度觀察空預(yù)器差壓變化趨勢(shì)等方法，確定該煤種對(duì)應(yīng)的目標(biāo)綜合溫度控制值，并根據(jù)空預(yù)器煙氣側(cè)差壓變化情況及時(shí)提高空預(yù)器冷端溫度控制值。為提高控制精度和減輕運(yùn)行人員調(diào)整工作量，空預(yù)器綜合冷端溫度控制目標(biāo)值建議通過(guò)原煙氣SO2濃度、燃煤量、煙氣量等參數(shù)實(shí)時(shí)計(jì)算并參與自動(dòng)調(diào)節(jié)。機(jī)組啟/停階段要注重冷端溫度控制。貴州空氣預(yù)熱器代理板式空氣預(yù)熱器有正反菱形波紋板。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州空氣預(yù)熱器代理,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220424328769531/3189655.jpg"></div><p> 焊接板式換熱器又分為：半焊接板式換熱器、全焊接板式換熱器、板殼式換熱器、釬焊板式換熱器。經(jīng)常用到的分類還有以下：1根據(jù)單位空間內(nèi)的換熱面積的多少，板式換熱器屬于緊湊式換熱器，主要是與管殼式換熱器進(jìn)行比較，傳統(tǒng)的管殼式換熱器占地較大。2根據(jù)工藝用途，又有不同的叫法：板式加熱器、板式冷卻器、板式冷凝器、板式預(yù)熱器；3根據(jù)流程組合，分為單程板式換熱器和多程板式換熱器。4根據(jù)兩種介質(zhì)的流動(dòng)方向，分為順流（并流）板式換熱器、逆流板式換熱器、交叉流（橫流）板式換熱器，后兩者用的比較多；5按照流道的間隙大小，分為常規(guī)間隙板式換熱器和寬間隙板式換熱器；6按照波紋，板式換熱器有更詳細(xì)的分別，不再累述，請(qǐng)參考：板式換熱器板片波紋形式。7按照是否是成套產(chǎn)品，可分為單機(jī)板式換熱器、板式換熱器機(jī)組。板式換熱器選型計(jì)算編輯板型選擇板片型式或波紋式應(yīng)根據(jù)換熱場(chǎng)合的實(shí)際需要而定。對(duì)流量大允許壓降小的情況，應(yīng)選用阻力小的板型，反之選用阻力大的板型。根據(jù)流體壓力和溫度的情況，確定選擇可拆卸式，還是釬焊式。確定板型時(shí)不宜選擇單板面積太小的板片，以免板片數(shù)量過(guò)多，板間流速偏小，傳熱系數(shù)過(guò)低，對(duì)較大的換熱器更應(yīng)注意這個(gè)問(wèn)題。</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(duì)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(wú)旁流，因此使得板式換熱器的末端溫差小，對(duì)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(zhǎng)度的壓力損失大；由于傳熱面之間的間隙較小，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)，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(guò)，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)含有較大顆粒或纖維物質(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(lái)區(qū)分板式換熱器，也就是根據(jù)外形來(lái)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）、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)熱器制造廠家有哪些？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州空氣預(yù)熱器代理,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405032539062/8800983.jpg"></div><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。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(cāng)，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(cāng)過(guò)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(wú)LCS（間隙自調(diào)裝置）時(shí)熱端效果不明顯；運(yùn)行時(shí)間長(zhǎng)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(diǎn)，對(duì)空預(yù)器徑向、軸向、周向（旁路）密封和相關(guān)靜密封進(jìn)行針對(duì)性設(shè)計(jì)，實(shí)施漏風(fēng)率控制；1）運(yùn)行調(diào)節(jié)及維護(hù)注意事項(xiàng)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。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。云南采暖空氣預(yù)熱器</p><p style="text-indent:25px">板式空氣預(yù)熱器適合安裝空間有限的改造項(xiàng)目。貴州空氣預(yù)熱器代理</p><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(shí)間。隨著循環(huán)的進(jìn)展和沉積物的溶解，反應(yīng)時(shí)產(chǎn)生的氣體也會(huì)增多，應(yīng)隨時(shí)通過(guò)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(huì)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(huì)造成水的溢出。7．循環(huán)中要定時(shí)檢查清洗劑的有效性?？梢允褂肞H試紙測(cè)定。如果溶液保持在PH值2‐3時(shí)，那么清洗劑仍然有效。如果清洗劑的PH值達(dá)到5‐6時(shí)，需要再添加適量清洗劑。**終溶液的PH值在2‐3時(shí)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(huì)造成浪費(fèi)。8．達(dá)到清洗時(shí)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(cè)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(yàn)，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(zhǎng)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(guò)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(jì)算出該企業(yè)每個(gè)小時(shí)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(jià)值補(bǔ)償。貴州空氣預(yù)熱器代理</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2544323.html</p></div></div></div></div></div><div id="nwtqnph" class="page-right twoColRt"><div id="qkmoq7v" 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