陜西氮化硅熱電偶保護(hù)管廠鄒平奧翔硅碳供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(lái)一系列問(wèn)題。"><meta name="keywords" content="陜西氮化硅熱電偶保護(hù)管廠,熱電偶保護(hù)管"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lkmtfm7" 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="7o72cw4" 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>陜西氮化硅熱電偶保護(hù)管廠,熱電偶保護(hù)管</p><p><span>***更新：</span>2020-06-13 18:10:45</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="8z2yfhg" 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="uxe8x2h" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8yxo8el" 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(lái)一系列問(wèn)題。隨著科技的進(jìn)步，溫度測(cè)量技術(shù)得到迅速發(fā)展，已形成從點(diǎn)到線，陜西氮化硅熱電偶保護(hù)管廠、由線到面；由表及里；從有線到無(wú)線的發(fā)展趨勢(shì)。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(jiǎn)單、使用方便、測(cè)溫范圍廣、信號(hào)可遠(yuǎn)傳等優(yōu)點(diǎn)，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。在其測(cè)溫過(guò)程中，熱電偶保護(hù)套管發(fā)揮著重要作用，陜西氮化硅熱電偶保護(hù)管廠。套管材料性能影響熱電偶的長(zhǎng)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(cè)溫，熱電偶保護(hù)套管不但要承受高溫，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(cè)溫時(shí)，陜西氮化硅熱電偶保護(hù)管廠，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)。奧翔硅碳累積點(diǎn)滴改進(jìn)，邁向優(yōu)良品質(zhì)！陜西氮化硅熱電偶保護(hù)管廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西氮化硅熱電偶保護(hù)管廠,熱電偶保護(hù)管" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238610543115234/5363422.jpg"></div><p> 所以在選取表袋直徑的時(shí)候，既要合理保證套管的強(qiáng)度，又要盡可能錯(cuò)開(kāi)共振危險(xiǎn)區(qū)。改變橫截面形狀，將其表面加工成結(jié)構(gòu)型式，使流體不產(chǎn)生漩渦脫落現(xiàn)象。嚴(yán)格控制檢修質(zhì)量，做好熱電偶套管材質(zhì)檢查，同時(shí)還要做好探傷檢查，嚴(yán)防焊口裂縫、斷裂等異常事件的發(fā)生。系統(tǒng)投運(yùn)時(shí)，避免發(fā)生管道上閥門突然全開(kāi)情況。在剛投運(yùn)開(kāi)啟閥門的瞬間，熱電偶套管將承受很大的單向力，因此在系統(tǒng)剛投運(yùn)時(shí)，要緩慢地開(kāi)啟閥門，讓系統(tǒng)壓力逐漸上升，盡可能減小熱電偶套管正面和背面的壓力差，避免套管因單向受力過(guò)大而導(dǎo)致套管斷裂事件發(fā)生。熱電偶在使用難免會(huì)發(fā)生套管破裂的現(xiàn)象，會(huì)直接影響到可靠的安全運(yùn)行。通過(guò)對(duì)熱電偶套管破裂現(xiàn)象的調(diào)查，查找原因。發(fā)現(xiàn)導(dǎo)致熱電偶套管破裂的原因主要有以下幾個(gè)方面：熱電偶套管受高速流體沖擊，載負(fù)過(guò)大，應(yīng)力超過(guò)極限，導(dǎo)致套管破裂;熱電偶套管本身的加工缺點(diǎn)，導(dǎo)致應(yīng)力集中，容易造成套管斷裂;管道振動(dòng)過(guò)大，造成熱電偶套管疲勞損壞;流體流經(jīng)熱電偶套管時(shí)，誘發(fā)熱電偶套管振動(dòng)，即熱電偶套管固有頻率和流體旋渦脫落頻率產(chǎn)生共振。這種共振現(xiàn)象會(huì)導(dǎo)致熱電偶套管損壞速度加快，以致斷裂。陜西氮化硅熱電偶保護(hù)管廠奧翔硅碳的行業(yè)影響力逐年提升。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西氮化硅熱電偶保護(hù)管廠,熱電偶保護(hù)管" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998420287924804_zbwuzi_3524777.jpg"></div><p> [2]SiC高溫陶瓷因具有良好耐高溫性能、導(dǎo)熱性能、**度、高硬度、低密度、較小熱膨脹系數(shù)和良好的抗氧化、耐磨損等性能，使其成為在1400℃以上測(cè)溫保護(hù)套管的優(yōu)先。然而普通SiC由于氣孔率高，造成高溫強(qiáng)度低、脆性較大等原因，使用中容易導(dǎo)致脆斷，造成熱電偶絲的污染，嚴(yán)重影響了熱電偶的可靠性。因此，作為測(cè)溫保護(hù)套管使用的SiC材料，應(yīng)具備耐高溫、抗氧化、**度、高硬度、抗沖刷、耐腐蝕及耐溫度劇變性能等一系列的優(yōu)點(diǎn)，才能保證確保熱電偶在1400℃左右的高溫環(huán)境下長(zhǎng)期穩(wěn)定使用，滿足冶金、煤化工領(lǐng)域的工業(yè)生產(chǎn)需求。性能要求編輯制作高溫條件下應(yīng)用的熱電偶保護(hù)套管，材料除具備普通熱電偶要求的氣密性、機(jī)械強(qiáng)度、穩(wěn)定性及導(dǎo)熱性外，還要求：（1）耐高溫：在熱電偶溫度測(cè)量上限使用，不產(chǎn)生變質(zhì)和變形，在高溫下抗氧化性能好。（2）熱強(qiáng)性：在熱電偶使用溫度下不軟化。（3）耐蝕性：當(dāng)熱電偶保護(hù)套管必須浸入熔融金屬、玻璃、熔鹽及腐蝕性氣體中時(shí)，應(yīng)具有對(duì)這些介質(zhì)的耐蝕性。（4）一定的耐溫度劇變的性能，抗熱震的綜合性能，熱導(dǎo)高，熱膨脹小。材料分類：1金屬材料該類材料的特點(diǎn)是機(jī)械強(qiáng)度高、韌性好及抗渣性好。 </p><p> 各種熱電偶的外形常因需要而極不相同，但是它們的基本結(jié)構(gòu)卻大致相同，通常由熱電極、絕緣套保護(hù)管和接線盒等主要部分組成，通常和顯示儀表、記錄儀表及電子調(diào)節(jié)器配套使用。熱電偶保護(hù)管的應(yīng)用及分類絕緣套管它的作用是防止倆個(gè)熱電級(jí)之間或熱電級(jí)與保護(hù)套管之間短路。絕緣套管的材料由使用溫度范圍確定：在1000°一下多采用普通陶瓷；在1000-1300°之間多采用高純氧化鋁；在1300-1600°之間多采用剛玉，補(bǔ)償導(dǎo)線的絕緣材料多采用有機(jī)材料。絕緣保護(hù)管它的作用死熱電偶不直接與被測(cè)介質(zhì)相接觸，以防機(jī)械損傷或被介質(zhì)腐濁、玷污。由此可見(jiàn)，保護(hù)管是熱電偶在惡劣、特殊環(huán)境下使用的關(guān)鍵。保護(hù)管的材質(zhì)一般根據(jù)測(cè)量范圍、加熱區(qū)長(zhǎng)度、環(huán)境氣氛以及測(cè)溫的時(shí)間常數(shù)等條件來(lái)決定，主要有金屬、非金屬和金屬陶瓷3種。1.金屬材料，如鋼管、無(wú)縫光管、不銹光管和耐熱光管等。金屬保護(hù)管的特點(diǎn)是機(jī)械強(qiáng)度高、韌性好、抗熔渣腐濁性強(qiáng)，因此金屬保護(hù)管多數(shù)用于要求有足夠機(jī)械強(qiáng)度的場(chǎng)合。但它們?cè)?00°以上時(shí)，氣密信有所下降。2.非金屬材料。非金屬保護(hù)管主要包括高熔點(diǎn)氧化物及復(fù)合氧化物，如al2o2\sio2、Mgo\ZrO2\Beo等；氮化物，如Si3N4、BN等；碳化物，如SIC等以及硼化物zrb2等。奧翔硅碳受行業(yè)客戶的好評(píng)，值得信賴。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西氮化硅熱電偶保護(hù)管廠,熱電偶保護(hù)管" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998420287768645_zbwuzi_4430013.jpg"></div><p>熱電偶保護(hù)管是**常用的測(cè)溫器件之一，它直接測(cè)量溫度，并把溫度信號(hào)轉(zhuǎn)換成熱電動(dòng)勢(shì)信號(hào)，通過(guò)電氣儀表轉(zhuǎn)換成被測(cè)介質(zhì)的溫度，對(duì)于溫度不斷變化的被測(cè)場(chǎng)所，尤其是瞬間變化過(guò)程，全過(guò)程*1秒鐘，則要求傳感器的響應(yīng)時(shí)間在毫秒級(jí)。因此，熱電偶保護(hù)管普通的溫度傳感器不*跟不上被測(cè)對(duì)象的溫度變化速度出現(xiàn)滯后，而且也會(huì)因達(dá)不到熱平衡而產(chǎn)生測(cè)量誤差。比較好選擇響應(yīng)快的傳感器。對(duì)熱電偶而言除保護(hù)管影響外，熱電偶的測(cè)量端直徑也是其主要因素，即偶絲越細(xì)，測(cè)量端直徑越小，其熱響應(yīng)時(shí)間越短。因?yàn)闊犭娕紲囟葌鞲衅骶哂袦y(cè)量范圍寬、精度高以及響應(yīng)時(shí)間快等優(yōu)點(diǎn)，所以得到普遍的使用。插入深度，熱電偶測(cè)溫點(diǎn)的選擇是**重要的。測(cè)溫點(diǎn)的位置，對(duì)于生產(chǎn)工藝過(guò)程而言，一定要具有典型性，否則將失去測(cè)量與控制的意義。熱電偶插入被測(cè)場(chǎng)所時(shí)，沿著傳感器的長(zhǎng)度方向?qū)a(chǎn)生熱流。當(dāng)環(huán)境溫度低時(shí)就會(huì)有熱損失。致使熱電偶溫度傳感器與被測(cè)對(duì)象的溫度不一致而產(chǎn)生測(cè)溫誤差。接觸法測(cè)溫的基本原理是測(cè)溫元件要與被測(cè)對(duì)象達(dá)到熱平衡。因此在測(cè)溫時(shí)需要保持一定時(shí)間，才能使兩者達(dá)到熱平衡。而保持時(shí)間的長(zhǎng)短，同測(cè)溫元件的熱響應(yīng)時(shí)間有關(guān)。奧翔硅碳產(chǎn)品**國(guó)內(nèi)。陜西氮化硅熱電偶保護(hù)管廠</p><p style="text-indent:25px">奧翔硅碳擁有業(yè)內(nèi)**人士和高技術(shù)人才。陜西氮化硅熱電偶保護(hù)管廠</p><p style="text-indent:25px">熱電偶的基本誤差:誤差是熱電偶本身固有的，還包括上一極標(biāo)準(zhǔn)的傳遞誤差。解決方法：可采用檢定校驗(yàn)的方法使其控制在允許偏差范圍內(nèi)，也可在實(shí)際測(cè)溫中將熱電偶偏差進(jìn)行修正，得到的真實(shí)的溫度。絕緣不良引起的誤差：熱電偶使用時(shí)兩熱電極間以及它們和大地之間應(yīng)有良好的絕緣，不然將會(huì)有熱電勢(shì)損耗，直接影響測(cè)量結(jié)果的準(zhǔn)確性，嚴(yán)重時(shí)會(huì)影響儀表的正常運(yùn)行。解決方法：把熱電偶的引線接在鐵管內(nèi)，并將鐵管接地。把熱電偶懸空，熱電偶不與爐壁的耐火磚接觸。把參考端接地，在熱電偶(或補(bǔ)償導(dǎo)線)輸出端的一端，通過(guò)一個(gè)容量足夠大的電容接地。用屏蔽的方法，可使泄漏的電流經(jīng)過(guò)金屬屏蔽物直接接地，不在流入測(cè)量回路，從而消除干擾誤差。陜西氮化硅熱電偶保護(hù)管廠</p><p style="text-indent:25px">鄒平縣奧翔硅碳制品有限公司致力于機(jī)械及行業(yè)設(shè)備，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。公司自2002-03-27成立以來(lái)，投身于[ "硅碳棒廠家", "碳化硅保護(hù)管", "熱電偶保護(hù)管", "碳化硅結(jié)合氮化硅" ]，是機(jī)械及行業(yè)設(shè)備的主力軍。公司堅(jiān)持以技術(shù)創(chuàng)新為發(fā)展引擎，以客戶滿意為動(dòng)力，目前擁有51~100人專業(yè)人員，年?duì)I業(yè)額達(dá)到50-100萬(wàn)元。鄒平奧翔硅碳供應(yīng)始終關(guān)注機(jī)械及行業(yè)設(shè)備行業(yè)。海納百川，有容乃大，國(guó)內(nèi)外同行的智慧都是促使我們前行的力量。</p></p><br /><p>文章來(lái)源地址: 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