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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="be3stkw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">納博熱（上海）工業(yè)爐有限公司</a></p><p><span>聯(lián)系人：</span>齊秀萍</p><p><span>郵箱: </span>info@nabertherm-cn.com</p><p><span>電話: </span>13816407062</p><p><span>傳真: </span>021_64903107</p><p><span>網(wǎng)址: </span>http://www.nabertherm-cn.com</p><p><span>手機: </span>021-64902960</p><p><span>地址: </span>瓶北路150弄158號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="gohyzkr" class="page-proshow02"><p class="title">詳細說明</p><div id="3724cxi" class="box"><p><p style="text-indent:25px">工業(yè)爐管道系統(tǒng)中哪些是壓力管道？根據(jù)特種設備條例中壓力管道定義，工業(yè)爐管道系統(tǒng)中以下設施管道應屬于壓力管道范圍。 1、外輸蒸汽管道：對帶有鍋筒或汽包裝置的爐型來說，經(jīng)汽包汽水分離后，其外輸蒸汽管道通常表壓≥0.4MPa，管徑≥80mm，介質(zhì)參數(shù)符合特種設備中的壓力管道定義，故屬于壓力管道。 2、吹掃放散系統(tǒng)來源管道：介質(zhì)通常為氮氣，吹掃點前來源管道通常表壓≥0.3MPa，河南工業(yè)爐公司，管徑≥50mm。介質(zhì)參數(shù)符合特種設備中的壓力管道定義，故屬于壓力管道。 3、儀表用氣管道：介質(zhì)通常為壓縮空氣，河南工業(yè)爐公司，一般情況下表壓≥0.3MPa，河南工業(yè)爐公司，管徑≥50mm。 4、部分燃氣管道：對于個別燃用液化氣和天然氣的爐型而言，在燃燒降壓前（表壓≥0.1MPa管徑≥25mm）的管道部分則屬于壓力管道。用油、氣取代煤等固體燃料，是我國工業(yè)爐節(jié)能發(fā)展的戰(zhàn)略性方向。河南工業(yè)爐公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南工業(yè)爐公司,工業(yè)爐" src="https://tyunfile.71360.com/UploadFile/nabore/637382854020546875/53508.png"></div><p style="text-indent:25px">對爐子進行設計或改進時，應根據(jù)生產(chǎn)工藝要求，盡量選用新型節(jié)能爐子。選擇合適的爐型結(jié)構(gòu)，提高機械化程度和能源利用率。目前通常采用的節(jié)能措施有：（1）采用圓形爐膛替代箱形爐膛，可強化爐膛對工件均勻傳熱的效果，減少爐壁散熱量，使爐膛形成一個熱交換系統(tǒng)，在加熱元件，爐襯和工件3者之間進行熱交換。通過采用合理的爐膛空間和在不增大爐膛空間容積的前提下，加大爐內(nèi)壁面積，以增大熱交換面積的方式提高爐膛熱交換從而提高熱效率。（2）在爐膛內(nèi)安設風扇，加強爐內(nèi)對流傳熱。特別是小型加熱爐，高速氣流可破壞停滯在工件表面阻礙傳熱和界面反應爐氣邊界底層，起到縮短加熱時間和加快提高工件溫度的作用。（3）爐體密封，包括爐膛內(nèi)各引出構(gòu)件，爐殼，爐門等處的密封。爐體密封不嚴，將會造成到處跑火、漏火，造成能源大量浪費、設備燒壞、環(huán)境惡劣等狀況，因此爐體密封直接影響工件品質(zhì)和能耗，同時密封也是爐內(nèi)氣氛控制的關(guān)鍵。而耐火纖維制品的出現(xiàn)，為解決爐體密封創(chuàng)造了條件，實現(xiàn)了軟密封。山西Nabertherm工業(yè)爐哪家好爐子升溫速度越快、爐子裝載量越大，則爐子生產(chǎn)率越高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南工業(yè)爐公司,工業(yè)爐" src="https://tyunfile.71360.com/UploadFile/nabore/637382854114619141/3973098.png"></div><p style="text-indent:25px">調(diào)整燃料結(jié)構(gòu)：盡管煤炭在相當階段內(nèi)仍是我國的主力能源，但其既污染嚴重，又不利實施高溫空氣燃燒技術(shù)。所以用油、氣取代煤等固體燃料，是我國工業(yè)爐節(jié)能發(fā)展的戰(zhàn)略性方向。進一步開發(fā)、完善先進的燃燒技術(shù)：大力完善和推廣高溫空氣燃燒技術(shù)仍是今后工業(yè)爐節(jié)能發(fā)展的方向。在保證高溫、高效火焰的基礎(chǔ)上提高爐膛溫度的技術(shù)，使爐膛溫度均勻分布的技術(shù)，以及N0x控制技術(shù)，是推動富氧燃燒的中心技術(shù)，也是未來的發(fā)展方向。同時C02的減排和封存問題將成為重要的研究熱點，余熱回收及充分利用低熱值燃料是工業(yè)爐節(jié)能發(fā)展的重點。</p><p style="text-indent:25px">工業(yè)爐修理的環(huán)境較差，許多修理作業(yè)是在爐內(nèi)進行，空間十分擁擠，自然采光不足，通風條件很差。工人操作時不僅受到粉塵的侵害，有時還直接受到高溫、煙塵、有毒氣體和化工材料的腐蝕。有的爐子（如沖天爐）高達10m—20m，由于爐身現(xiàn)場狹窄，修理工作呈高空立體交叉、多層作業(yè)，危險性很大。因此，當操作和維修工業(yè)爐時，要十分重視安全問題。尤其是在組織工業(yè)爐時，要十分重視安全問題。尤其是在組織工業(yè)爐的搶修或熱修時，更應注意這些不安全因素所可能引起的不幸事故。工業(yè)爐按熱工制度又可分為兩類：一類是間斷式爐又稱周期式爐，第二類是連續(xù)式爐。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南工業(yè)爐公司,工業(yè)爐" src="https://tyunfile.71360.com/UploadFile/nabore/637382854084746094/3309011.png"></div><p style="text-indent:25px">工業(yè)爐內(nèi)溫度均勻度狀態(tài)，主要受電熱元件布置，爐門的密封和保溫狀態(tài)的影響，通常爐膛前溫度較低。工件在高，中溫箱式爐中加熱主要靠電熱元件和爐膛表面的熱輻射。為提高這類爐子的交換效果，我教您采取以下措施：（1）提高爐門密封性，或在爐門內(nèi)側(cè)加熱電熱元件，或在爐門洞加一屏蔽板，以減少爐口輻射損失。（2）合理布置工件，對要求較嚴格的火件，工件間距為工件直徑（或?qū)挾龋┮话霑r，有較好的傳熱效果和生產(chǎn)率。（3）爐壁涂覆遠紅外涂料，增加輻射系數(shù)，但多數(shù)涂料不能長期保持其高的輻射系數(shù)，影響使用效果。（4）采用波紋狀的爐內(nèi)拱頂結(jié)構(gòu)，以提高輻射傳熱面。（5）改進電熱元件布置，采用板片狀電熱元件，增大元件輻射面積和減少擱絲磚對輻射線的遮蔽。在箱式爐爐頂設置電熱元件也有提高熱交換的效果。（6）采用耐火纖維爐襯，以減少爐墻的蓄熱量和散熱量。利用工業(yè)爐排出的煙氣余熱對助燃空氣和氣體燃料加熱的裝置。河南工業(yè)爐公司</p><p style="text-indent:25px">根據(jù)不同的用途設計相適應的工業(yè)爐。河南工業(yè)爐公司</p><p style="text-indent:25px">用于鍛造加熱的爐子較早是手鍛爐，其工作空間是一個凹形槽，槽內(nèi)填入煤炭，燃燒用的空氣由槽的下部供入，工件埋在煤炭里加熱。這種爐子的熱效率很低，加熱質(zhì)量也不好，而且只能加熱小型工件，以后發(fā)展為用耐火磚砌成的半封閉或全封閉爐膛的室式爐，可以用煤，煤氣或油作為燃料，也可用電作為熱源，工件放在爐膛里加熱。為便于加熱大型工件，又出現(xiàn)了適于加熱鋼錠和大鋼坯的臺車式爐，為了加熱長形桿件還出現(xiàn)了井式爐。20世紀20年代后又出現(xiàn)了能夠提高爐子生產(chǎn)率和改善勞動條件的各種機械化、自動化爐型。工業(yè)爐的燃料也隨著燃料資源的開發(fā)和燃料轉(zhuǎn)換技術(shù)的進步，而由采用塊煤、焦炭、煤粉等固體燃料逐步改用發(fā)生爐煤氣、城市煤氣、天然氣、柴油、燃料油等氣體和液體燃料，并且研制出了與所用燃料相適應的各種燃燒裝置。河南工業(yè)爐公司</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2520561.html</p></div></div></div></div></div><div id="eghyu3e" class="page-right twoColRt"><div id="drctpar" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ohssytz" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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