更(geng)新時間:2024-09-26
訪問數量:1080
廠商性質:生產廠家
WREM2--431耐(nai)磨熱(re)電(dian)偶
耐磨保護管(guan)、感溫(wen)元件和(he)接線盒等部件組成。它是我(wo)公(gong)司為碳素行業專門研發的(de)新型產(chan)(chan)品,耐磨保護套管(guan)使用特(te)殊(shu)的(de)合金材料,能長(chang)期在0~1200℃之(zhi)間進行溫(wen)度測量,并且(qie)在這種磨損程度*的(de)惡劣場合中產(chan)(chan)品的(de)使用壽命可達普通產(chan)(chan)品的(de)幾(ji)倍之(zhi)高,大(da)大(da)提高了生產(chan)(chan)效率,降低成本消耗。包郵、含稅16%
碳素熱電偶主要特點
1、裝(zhuang)配簡單(dan),更換(huan)方便(bian);
2、壓簧式感(gan)溫元(yuan)件,抗(kang)震性能好;
3、測量精度高;
4、測量范圍大(-200℃~1300℃,特殊情況(kuang)下-270℃~1800℃);
5、熱響(xiang)應時間快;
6、機械強度(du)高,耐壓性能好;
7、耐(nai)高溫可達1800度;
8、使用(yong)壽命(ming)長。
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電氣出口:M20*1.5 防護等級:IP65 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
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熱電(dian)偶實際上是一種能(neng)量轉換器,它將(jiang)熱能(neng)轉換為電(dian)能(neng),用所(suo)產生(sheng)的熱電(dian)勢(shi)測(ce)量溫度,對于(yu)熱電(dian)偶的熱電(dian)勢(shi),應注意如下幾(ji)個問(wen)題:
1、熱(re)電偶(ou)的熱(re)電勢是熱(re)電偶(ou)工作端(duan)(duan)(duan)的兩端(duan)(duan)(duan)溫(wen)度(du)函數的差,而不是熱(re)電偶(ou)冷端(duan)(duan)(duan)與工作端(duan)(duan)(duan),兩端(duan)(duan)(duan)溫(wen)度(du)差的函數;
2、熱(re)電偶所產(chan)生的(de)(de)(de)熱(re)電勢的(de)(de)(de)大小,當熱(re)電偶的(de)(de)(de)材(cai)料(liao)是均(jun)勻時,與(yu)熱(re)電偶的(de)(de)(de)長(chang)度(du)和直(zhi)徑無(wu)關,只與(yu)熱(re)電偶材(cai)料(liao)的(de)(de)(de)成份和兩端的(de)(de)(de)溫(wen)差(cha)有關;
3、當熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)的(de)(de)兩(liang)個(ge)熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)絲材(cai)料成份確定后,熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)勢(shi)(shi)的(de)(de)大(da)小,只(zhi)與熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)的(de)(de)溫(wen)度(du)差有關;若熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)冷端的(de)(de)溫(wen)度(du)保持一般,這進熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)的(de)(de)熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)勢(shi)(shi)僅是(shi)工作端溫(wen)度(du)的(de)(de)單(dan)值(zhi)函(han)數。將(jiang)兩(liang)種(zhong)不(bu)同材(cai)料的(de)(de)導體或半導體A和B焊(han)接起來,構成一個(ge)閉合回路,如圖所示。當導體A和B的(de)(de)兩(liang)個(ge)執(zhi)著點1和2之間存在溫(wen)差時,兩(liang)者之間便產生電(dian)(dian)(dian)(dian)(dian)動勢(shi)(shi),因而在回路中形成一個(ge)大(da)小的(de)(de)電(dian)(dian)(dian)(dian)(dian)流,這種(zhong)現象稱(cheng)為熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)效(xiao)應。熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)就是(shi)利用這一效(xiao)應來工作的(de)(de)。