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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_drsb/">電熱設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-drsb_redianou/">熱電偶</a>?四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家鄒平奧翔硅碳供應(yīng)</p><div id="pjlkmdu" class="leftbox clearfix"><h1>四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家鄒平奧翔硅碳供應(yīng)</h1><div id="8zbszlx" class="proBig"><div id="rgypmdu" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238610543115234/5363422.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2a2vxpr" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238610543115234/5363422.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="eya2oln" 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>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家</p><p><span>***更新：</span>2020-05-30 10:05:27</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="r2ubtfm" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">鄒平縣奧翔硅碳制品有限公司</a></p><p><span>聯(lián)系人：</span>張洪恩</p><p><span>郵箱: </span>13884861614@163.com</p><p><span>電話: </span>13884861614</p><p><span>傳真: </span>0543_4534117</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0543-4533667</p><p><span>地址: </span>山東省鄒平市臨池鎮(zhèn)望京村</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="ctaseqx" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="2mo3kr8" class="box"><p><p> 但耐高溫性卻不夠良金屬材料保護(hù)套管性能表好，易受腐蝕。常用的金屬材料保護(hù)套管如表1所示。[1]2非金屬材料該類材料的特點(diǎn)是：耐高溫、抗氧化，但不抗沖擊，比較脆易碎，導(dǎo)熱性不理想，熱響應(yīng)敏感性差。因此，一般要求管壁比較薄，因而帶來一系列問題。隨著科技的進(jìn)步，溫度測量技術(shù)得到迅速發(fā)展，已形成從點(diǎn)到線、由線到面；由表及里；從有線到無線的發(fā)展趨勢。在接觸式與非接觸式兩大類產(chǎn)品中，量大面廣的接觸式熱電偶在現(xiàn)代技術(shù)發(fā)展中得到了快速的發(fā)展。熱電偶因其性能穩(wěn)定、準(zhǔn)確可靠、結(jié)構(gòu)簡單、使用方便、測溫范圍廣、信號(hào)可遠(yuǎn)傳等優(yōu)點(diǎn)，四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家，在工業(yè)生產(chǎn)和科學(xué)研究等領(lǐng)域中已成為應(yīng)用**普遍的感溫元件，四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家。在其測溫過程中，熱電偶保護(hù)套管發(fā)揮著重要作用。套管材料性能影響熱電偶的長期穩(wěn)定性和使用壽命等各項(xiàng)性能指標(biāo)。特別是在高溫下工作的熱電偶，對(duì)其材料有更高的要求。比如鋼水連續(xù)測溫，熱電偶保護(hù)套管不但要承受高溫，四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家，還要受到熾熱鋼水的腐蝕和沖擊。而在循環(huán)流化床鍋爐中測溫時(shí)，不但有高溫氧化和高溫腐蝕，還有流動(dòng)性粉體的高溫沖蝕磨損。如此惡劣的工作環(huán)境對(duì)保護(hù)套管材料是嚴(yán)峻的考驗(yàn)。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238610543115234/5363422.jpg"></div><p style="text-indent:25px">熱電偶冷端的溫度補(bǔ)償由于熱電偶的材料一般都比較貴重（特別是采用貴金屬時(shí)），而測溫點(diǎn)到儀表的距離都很遠(yuǎn)，為了節(jié)省熱電偶材料，降低成本，通常采用補(bǔ)償導(dǎo)線把熱電偶的冷端（自由端）延伸到溫度比較穩(wěn)定的控制室內(nèi)，連接到儀表端子上。必須指出，熱電偶補(bǔ)償導(dǎo)線的作用只起延伸熱電極，使熱電偶的冷端移動(dòng)到控制室的儀表端子上，它本身并不能消除冷端溫度變化對(duì)測溫的影響，不起補(bǔ)償作用。因此，還需采用其他修正方法來補(bǔ)償冷端溫度t0≠0℃時(shí)對(duì)測溫的影響。在使用熱電偶補(bǔ)償導(dǎo)線時(shí)必須注意型號(hào)相配，極性不能接錯(cuò)，補(bǔ)償導(dǎo)線與熱電偶連接端的溫度不能超過100℃。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238610542988281/7120477.jpg"></div><p>而熱響應(yīng)時(shí)間主要取決于傳感器的結(jié)構(gòu)及測量條件，差別極大。對(duì)于氣體介質(zhì)，尤其是靜止氣體，至少應(yīng)保持30min以上才能達(dá)到平衡；對(duì)于液體而言，**快也要在5min以上。總之，由熱傳導(dǎo)而引起的誤差，與插入深度有關(guān)。而插入深度又與保護(hù)管材質(zhì)有關(guān)。金屬保護(hù)管因其導(dǎo)熱性能好，其插入深度應(yīng)該深一些，陶瓷材料絕熱性能好，可插入淺一些。對(duì)于工程測溫，其插入深度還與測量對(duì)象是靜止或流動(dòng)等狀態(tài)有關(guān)，如流動(dòng)的液體或高速氣流溫度的測量，將不受上述限制，熱電偶保護(hù)管插入深度可以淺一些，具體數(shù)值應(yīng)由實(shí)驗(yàn)確定。一般熱電偶（熱電阻）都帶有保護(hù)套管。然而熱電偶保護(hù)管的使用將使測溫元件的熱滯后增加。因?yàn)楫?dāng)介質(zhì)溫度發(fā)生變化時(shí)，被測介質(zhì)需先加熱套管，然后套管加熱測溫元件，所以，由測溫元件反映出來的溫度往往比實(shí)際的變化要滯后一段時(shí)間，甚至可能由于跟不上實(shí)際溫度的迅速變化而比實(shí)際溫度低一些。保護(hù)套管的壁越厚，傳熱滯后也越大。因此，測溫元件必須與熱電偶保護(hù)管保持良好的接觸。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川防腐蝕熱電偶保護(hù)管生產(chǎn)廠家" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998420293702687_zbwuzi_6322049.JPG"></div></p><br /><p>文章來源地址: 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