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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>U型管換熱器費(fèi)用,換熱器</p><p><span>***更新：</span>2021-01-26 03:15:06</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="yxy4vfe" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫明燕裝備有限公司</a></p><p><span>聯(lián)系人：</span>王晶</p><p><span>郵箱: </span>1445901823@qq.com</p><p><span>電話(huà): </span>13801517856</p><p><span>傳真: </span>0510_85952851</p><p><span>網(wǎng)址: </span>http://www.etaihu.com</p><p><span>手機(jī): </span>0510-85952851</p><p><span>地址: </span>雪浪街道南湖中路</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="w8dnp2q" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="mf9wtqx" class="box"><p><p style="text-indent:25px">板式換熱器：較典型的間壁式換熱器，U型管換熱器費(fèi)用，它在工業(yè)上的應(yīng)用有著悠久的歷史，而且至今仍在所有換熱器中占據(jù)主導(dǎo)地位。主體結(jié)構(gòu)由換熱板片以及板間的膠條組成。長(zhǎng)期在市場(chǎng)占據(jù)主導(dǎo)地位，但是其體積大，U型管換熱器費(fèi)用，換熱效率低，U型管換熱器費(fèi)用，更換膠條價(jià)格昂貴（膠條的更換費(fèi)用大約占整個(gè)過(guò)程的1/3-1/2）。主要應(yīng)用于液體-液體之間的換熱，行業(yè)內(nèi)常稱(chēng)為水水換熱，其換熱效率在5000w/m2。K為提高管外流體給熱系數(shù)，通常在殼體內(nèi)安裝一定數(shù)量的橫向折流檔板。折流檔板不*可防止流體短路，增加流體速度，還迫使流體按規(guī)定路徑多次錯(cuò)流通過(guò)管束，使湍動(dòng)程度大為增加。常用的檔板有圓缺形和圓盤(pán)形兩種，前者應(yīng)用更為普遍。管殼式換熱器內(nèi)部裝有平行管束或者螺旋管，管束兩端固定于管板上。U型管換熱器費(fèi)用</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="U型管換熱器費(fèi)用,換熱器" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774243784771/5361514.png"></div><p style="text-indent:25px">可拆板式換熱器的各種板片之間形成薄矩形通道，通過(guò)半片進(jìn)行熱量交換。它與常規(guī)的管殼式換熱器相比，在相同的流動(dòng)阻力和泵功率消耗情況下，其傳熱系數(shù)要高出很多，在適用的范圍內(nèi)有取代管殼式換熱器的趨勢(shì)。應(yīng)用場(chǎng)合：制冷：用作冷凝器和蒸發(fā)器。暖通空調(diào)：配合鍋爐使用的中間換熱器、高層建筑中間換熱器等?；瘜W(xué)工業(yè)：純堿工業(yè)，合成氨，酒精發(fā)酵，樹(shù)脂合成冷卻等。冶金工業(yè)：鋁酸鹽母液加熱或冷卻，煉鋼工藝?yán)鋮s等。機(jī)械工業(yè)：各種淬火液冷卻，減速器潤(rùn)滑油冷卻等。北京換熱器制造公司換熱器當(dāng)浮頭出的鉤圈拆除后，即可將管束從殼體內(nèi)抽出。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="U型管換熱器費(fèi)用,換熱器" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774055814900/3180182.png"></div><p style="text-indent:25px">針對(duì)換熱器的有關(guān)腐蝕情況，提出防腐方法:這里主要介紹緩蝕劑，電化學(xué)保護(hù)。緩蝕劑以鉻酸鹽為主要成分的緩蝕劑是冷卻水系統(tǒng)常用的，鉻酸根離子是一種陽(yáng)極(過(guò)程)控制劑，當(dāng)它與合適的陰極控制劑組合時(shí)，能得到令人滿(mǎn)意而又經(jīng)濟(jì)的防腐蝕效果。鉻酸鹽-鋅--聚磷酸鹽:聚磷酸鹽的使用是由于它是具有清潔金屬表面的作用，有緩蝕能力，聚磷酸鹽可以部分轉(zhuǎn)成正磷酸鹽，它們也可以同鈣生成大的膠體陽(yáng)離子，控制陰極過(guò)程。鉻酸鹽-鋅--膦酸鹽:這種方法用膦酸鈉代替聚磷酸鹽外與上一種方法相似，氨基甲叉磷酸鹽也可以用于比為聚磷酸鹽所規(guī)定的pH值要高的場(chǎng)合。氨基甲叉膦酸鹽可以防止水垢，即使pH值為9也能控制鈣鹽的沉淀。</p><p style="text-indent:25px">陽(yáng)極保護(hù)是把保護(hù)的換熱器接以外加電源的陽(yáng)極，使金屬表面生成鈍化膜，從而得到保護(hù)。板式換熱器的特點(diǎn)：傳熱系數(shù)高板式換熱器具有較高的傳熱系數(shù)，一般約為管殼式換熱器的3~5倍。主要原因是流體在管殼式換熱器的殼程中流動(dòng)時(shí)存在著折流板—?dú)んw，折流板—換熱管，管束—?dú)んw之間的旁路，通過(guò)這些旁路的流體，沒(méi)有充分參與換熱。而板式換熱器，不存在旁路，而且板片的波紋能使流體在較小的流速下產(chǎn)生湍流，湍流效果明顯（雷諾數(shù)約為150時(shí)即為湍流），故能獲得較高的傳熱系數(shù)。對(duì)數(shù)平均溫差大板式換熱器兩種流體可實(shí)現(xiàn)純逆流，一般為順流或逆流方式。換熱器可用于結(jié)垢比較嚴(yán)重的場(chǎng)合。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="U型管換熱器費(fèi)用,換熱器" src="https://tyunfile.71360.com/UploadFile/wxmyzb/637395774228735868/9177757.png"></div><p style="text-indent:25px">直接接觸式換熱器又被稱(chēng)為混合式換熱器，這種換熱器是兩種流體直接接觸，彼此混合進(jìn)行換熱的設(shè)備例如，冷水塔、氣體冷凝器等。復(fù)式換熱器兼有汽水面式間接換熱及水水直接混流換熱兩種換熱方式的設(shè)備。同汽水面式間接換熱相比，具有更高的換熱效率；同汽水直接混合換熱相比具有較高的穩(wěn)定性及較低的機(jī)組噪音。按用途分類(lèi)：加熱器是把流體加熱到必要的溫度，但加熱流體沒(méi)有發(fā)生相的變化。預(yù)熱器預(yù)熱器預(yù)先加熱流體，為工序操作提供標(biāo)準(zhǔn)的工藝參數(shù)。過(guò)熱器用于把流體（工藝氣或蒸汽）加熱到過(guò)熱狀態(tài)。蒸發(fā)器用于加熱流體，達(dá)到沸點(diǎn)以上溫度，使其流體蒸發(fā)，一般有相的變化。蓄熱式換熱器有旋轉(zhuǎn)式、閥門(mén)切換式等。U型管換熱器費(fèi)用</p><p style="text-indent:25px">間壁式換熱器有管殼式、套管式和其他型式的換熱器。U型管換熱器費(fèi)用</p><p style="text-indent:25px">管殼式換熱器：管殼式(又稱(chēng)列管式)換熱器是管殼式換熱器主要有殼體、管束、管板和封頭等部分組成，殼體多呈圓形，內(nèi)部裝有平行管束或者螺旋管，管束兩端固定于管板上。在管殼換熱器內(nèi)進(jìn)行換熱的兩種流體，一種在管內(nèi)流動(dòng)，其行程稱(chēng)為管程；一種在管外流動(dòng)，其行程稱(chēng)為殼程。管束的壁面即為傳熱面。管子的型號(hào)不一，過(guò)程一般為直徑16mm20mm或者25mm三個(gè)型號(hào)，管壁厚度一般為1mm，1.5mm，2mm以及2.5mm。進(jìn)口換熱器，直徑比較低可以到8mm，壁厚*為0.6mm。較大提高了換熱效率，2012年來(lái)也在國(guó)內(nèi)市場(chǎng)逐漸推廣開(kāi)來(lái)。管殼式換熱器，螺旋管束設(shè)計(jì)，可以比較大限度的增加湍流效果，加大換熱效率。內(nèi)部殼層和管層的不對(duì)稱(chēng)設(shè)計(jì)，比較大可以達(dá)到4.6倍。這種不對(duì)稱(chēng)設(shè)計(jì)，決定其在汽-水換熱領(lǐng)域的普遍應(yīng)用。U型管換熱器費(fèi)用</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3012428.html</p></div></div></div></div></div><div id="we2h7mu" class="page-right twoColRt"><div id="cbxarwi" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pdnur8t" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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