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class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998420287768645_zbwuzi_5855056.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="knebnwx" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998420287768645_zbwuzi_5855056.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="odfw8mi" 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>河南電廠熱電偶保護(hù)管零售,熱電偶保護(hù)管</p><p><span>***更新：</span>2021-01-19 12:03:00</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="fi3hl4t" 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="fzgnr4b" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="utar2ri" class="box"><p><p> 熱電偶/熱電阻基礎(chǔ)知識(shí)詳解一、溫度與測(cè)溫1.溫度：是表征物體的冷熱程度的物理量，是七個(gè)基本物理量之一，是物體內(nèi)部分子無(wú)規(guī)則運(yùn)動(dòng)的宏觀反映。2.溫標(biāo)：即溫度的標(biāo)準(zhǔn)，是溫度高低的標(biāo)準(zhǔn)尺度，是溫度的數(shù)值表示方法。各種溫度計(jì)的數(shù)值都是由溫標(biāo)決定的。3.溫標(biāo)三要素：利用物質(zhì)的“相平衡溫度”為固定點(diǎn)刻在溫度計(jì)上，而固定點(diǎn)之間的溫度值則用理論推導(dǎo)的數(shù)學(xué)公式（又稱內(nèi)插方程）來(lái)表達(dá)。溫度計(jì)、固定點(diǎn)，河南電廠熱電偶保護(hù)管零售，河南電廠熱電偶保護(hù)管零售、內(nèi)插方程稱為溫標(biāo)三要素。4.常用固定點(diǎn)：水℃，錫℃，鋅℃，鋁℃，銅℃。5.華氏溫標(biāo)：1714年，規(guī)定水的凝固點(diǎn)為32度，水的沸點(diǎn)為212度，將這兩個(gè)固定點(diǎn)之間等分180格，每一格稱為華氏一度，用℉表示。6.攝氏溫標(biāo)：1742年，規(guī)定水的凝固點(diǎn)為0度，水的沸點(diǎn)為100度，河南電廠熱電偶保護(hù)管零售，將這兩個(gè)固定點(diǎn)之間等分100格，每一格稱為攝氏一度，用℃表示。它是應(yīng)用**廣的一種溫度標(biāo)準(zhǔn)。換算公式：℉=℃+32。7.熱力學(xué)溫標(biāo)：1848年英國(guó)科學(xué)家開(kāi)爾文提出了建立在熱力學(xué)第二定律基礎(chǔ)上的與測(cè)溫物質(zhì)性質(zhì)無(wú)關(guān)的溫標(biāo)，叫熱力學(xué)溫標(biāo)，用“K”表示。換算公式：℃=。8.零度：根據(jù)熱力學(xué)第三定律，零度就是理想氣體分子停止無(wú)規(guī)則運(yùn)動(dòng)而處于靜止?fàn)顟B(tài)，內(nèi)能為零，即“0”K。我公司將以優(yōu)良的產(chǎn)品，周到的服務(wù)與尊敬的用戶攜手并進(jìn)！河南電廠熱電偶保護(hù)管零售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南電廠熱電偶保護(hù)管零售,熱電偶保護(hù)管" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998420287768645_zbwuzi_5855056.jpg"></div><p> 熱電偶的結(jié)構(gòu)形式為了保證熱電偶可靠、穩(wěn)定地工作，對(duì)它的結(jié)構(gòu)要求如下：1、組成熱電偶的兩個(gè)熱電極的焊接必須牢固；2、兩個(gè)熱電極彼此之間應(yīng)很好地絕緣，以防短路；3、補(bǔ)償導(dǎo)線與熱電偶自由端的連接要方便可靠；4、保護(hù)套管應(yīng)能保證熱電極與有害介質(zhì)充分隔離。兩種不同成份的導(dǎo)體（稱為熱電偶絲材或熱電極）兩端接合成回路，當(dāng)兩個(gè)接合點(diǎn)的溫度不同時(shí)，在回路中就會(huì)產(chǎn)生電動(dòng)勢(shì)，這種現(xiàn)象稱為熱電效應(yīng)，而這種電動(dòng)勢(shì)稱為熱電勢(shì)。熱電偶就是利用這種原理進(jìn)行溫度測(cè)量的，其中，直接用作測(cè)量介質(zhì)溫度的一端叫做工作端（也稱為測(cè)量端），另一端叫做冷端（也稱為補(bǔ)償端）；冷端與顯示儀表或配套儀表連接，顯示儀表會(huì)指出熱電偶所產(chǎn)生的熱電勢(shì)。熱電偶實(shí)際上是一種能量轉(zhuǎn)換器，它將熱能轉(zhuǎn)換為電能，用所產(chǎn)生的熱電勢(shì)測(cè)量溫度，對(duì)于熱電偶的熱電勢(shì)，應(yīng)注意如下幾個(gè)問(wèn)題：1、熱電偶的熱電勢(shì)是熱電偶工作端的兩端溫度函數(shù)的差，而不是熱電偶冷端與工作端，兩端溫度差的函數(shù)；2、熱電偶所產(chǎn)生的熱電勢(shì)的大小，當(dāng)熱電偶的材料是均勻時(shí)，與熱電偶的長(zhǎng)度和直徑無(wú)關(guān)，只與熱電偶材料的成份和兩端的溫差有關(guān)；3、當(dāng)熱電偶的兩個(gè)熱電偶絲材料成份確定后，熱電偶熱電勢(shì)的大小。河北鋅液熱電偶保護(hù)管零售我公司生產(chǎn)的產(chǎn)品、設(shè)備用途非常多。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南電廠熱電偶保護(hù)管零售,熱電偶保護(hù)管" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998420287924804_zbwuzi_4882160.JPG"></div><p> 非金屬保護(hù)管主要用于高溫，也可在不宜用金屬套管的低溫中使用。其抗腐濁性強(qiáng)，但是質(zhì)地較脆。3.金屬陶瓷。金屬材料雖然堅(jiān)韌，但往往不耐高溫以及抗腐濁性差。陶瓷材料恰好相反，它們能耐高溫、抗腐濁，但是很脆。為此，人們將金屬與陶瓷結(jié)合，集倆者之優(yōu)點(diǎn)，得到了一種即耐高溫、抗腐濁，又抗熱震的堅(jiān)韌材料--金屬陶瓷。所謂金屬陶瓷，是指一種金屬或合金，同一種或幾種陶瓷材料組成的非均值的復(fù)合材料。主要有AL2O3基金屬陶瓷、ZRO2基金屬陶瓷、mgo基金屬陶瓷和碳化鈦系列金屬陶瓷。金屬陶瓷保護(hù)管常用于化工廠、溶融金屬和高溫爐的溫度測(cè)量.熱電偶保護(hù)管是保護(hù)熱電偶芯的套管。1、熱電偶（thermocouple）是溫度測(cè)量?jī)x表中常用的測(cè)溫元件，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（二次儀表）轉(zhuǎn)換成被測(cè)介質(zhì)的溫度。2、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（thermocouple）是溫度測(cè)量?jī)x表中常用的測(cè)溫元件，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。</p><p style="text-indent:25px">熱電偶的種類及結(jié)構(gòu)形成（1）熱電偶的種類常用熱電偶可分為標(biāo)準(zhǔn)熱電偶和非標(biāo)準(zhǔn)熱電偶兩大類。所調(diào)用標(biāo)準(zhǔn)熱電偶是指標(biāo)準(zhǔn)規(guī)定了其熱電勢(shì)與溫度的關(guān)系、允許誤差、并有統(tǒng)一的標(biāo)準(zhǔn)分度表的熱電偶，它有與其配套的顯示儀表可供選用。非標(biāo)準(zhǔn)化熱電偶在使用范圍或數(shù)量級(jí)上均不及標(biāo)準(zhǔn) 化熱電偶，一般也沒(méi)有統(tǒng)一的分度表，主要用于某些特殊場(chǎng)合的測(cè)量。標(biāo)準(zhǔn)化熱電偶我國(guó)從1988年1月1日起，熱電偶和熱電阻全部按IEC國(guó)際標(biāo)準(zhǔn)生產(chǎn)，并指定S、B、E、K、R、J、T七種標(biāo)準(zhǔn)化熱電偶為我國(guó)統(tǒng)一設(shè)計(jì)型熱電偶。 (2)熱電偶的結(jié)構(gòu)形式為了保證熱電偶可靠、穩(wěn)定地工作，對(duì)它的結(jié)構(gòu)要求如下： ① 組成熱電偶的兩個(gè)熱電極的焊接必須牢固； ② 兩個(gè)熱電極彼此之間應(yīng)很好地絕緣，以防短路； ③ 補(bǔ)償導(dǎo)線與熱電偶自由端的連接要方便可靠； ④ 保護(hù)套管應(yīng)能保證熱電極與有害介質(zhì)充分隔離。奧翔硅碳累積點(diǎn)滴改進(jìn)，邁向優(yōu)良品質(zhì)！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南電廠熱電偶保護(hù)管零售,熱電偶保護(hù)管" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238610543173828/1161240.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(cè)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(cè)溫的影響，不起補(bǔ)償作用。因此，還需采用其他修正方法來(lái)補(bǔ)償冷端溫度t0≠0℃時(shí)對(duì)測(cè)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(guò)100℃。奧翔硅碳是多層次的模式與管理模式。河南電廠熱電偶保護(hù)管零售</p><p style="text-indent:25px">奧翔硅碳擁有先進(jìn)的產(chǎn)品生產(chǎn)設(shè)備，雄厚的技術(shù)力量。河南電廠熱電偶保護(hù)管零售</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、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。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)，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)。河南電廠熱電偶保護(hù)管零售</p><p style="text-indent:25px">鄒平縣奧翔硅碳制品有限公司是一家有著雄厚實(shí)力背景、信譽(yù)可靠、勵(lì)精圖治、展望未來(lái)、有夢(mèng)想有目標(biāo)，有組織有體系的公司，堅(jiān)持于帶領(lǐng)員工在未來(lái)的道路上大放光明，攜手共畫藍(lán)圖，在山東省濱州市等地區(qū)的機(jī)械及行業(yè)設(shè)備行業(yè)中積累了大批忠誠(chéng)的客戶粉絲源，也收獲了良好的用戶口碑，為公司的發(fā)展奠定的良好的行業(yè)基礎(chǔ)，也希望未來(lái)公司能成為*****，努力為行業(yè)領(lǐng)域的發(fā)展奉獻(xiàn)出自己的一份力量，我們相信精益求精的工作態(tài)度和不斷的完善創(chuàng)新理念以及自強(qiáng)不息，斗志昂揚(yáng)的的企業(yè)精神將**鄒平奧翔硅碳供應(yīng)和您一起攜手步入輝煌，共創(chuàng)佳績(jī)，一直以來(lái)，公司貫徹執(zhí)行科學(xué)管理、創(chuàng)新發(fā)展、誠(chéng)實(shí)守信的方針，員工精誠(chéng)努力，協(xié)同奮取，以品質(zhì)、服務(wù)來(lái)贏得市場(chǎng)，我們一直在路上！</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2917361.html</p></div></div></div></div></div><div id="7udktsj" class="page-right twoColRt"><div id="n7iu2p3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lpwtnmt" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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