防爆熱電偶工業用隔爆熱電偶是一種溫度傳感器，在化學工業自控系統中應用極廣，通過溫度傳感器，可將控制對象的溫度參數變成電信號，傳遞給顯示、記錄和調節儀，對系統施行檢測、 防爆熱電偶
防爆(bao)(bao)熱(re)(re)電(dian)(dian)(dian)(dian)偶調節(jie)和控制。在化工(gong)廠(chang)，生(sheng)產現場(chang)常伴有各(ge)種(zhong)易(yi)燃(ran)、易(yi)爆(bao)(bao)等(deng)化學氣(qi)體(ti)、蒸(zheng)汽(qi)，如果使用(yong)(yong)普通的(de)熱(re)(re)電(dian)(dian)(dian)(dian)偶非常不安全，極易(yi)引起環境(jing)氣(qi)體(ti)爆(bao)(bao)炸。因此，在這些(xie)場(chang)合(he)必須使用(yong)(yong)隔(ge)爆(bao)(bao)熱(re)(re)電(dian)(dian)(dian)(dian)偶作溫(wen)(wen)度傳感器(qi)。 隔(ge)爆(bao)(bao)熱(re)(re)電(dian)(dian)(dian)(dian)偶應用(yong)(yong)通常和顯示儀(yi)表、記(ji)錄(lu)儀(yi)表、電(dian)(dian)(dian)(dian)子計(ji)算機等(deng)配套使用(yong)(yong)。直接測(ce)量生(sheng)產現場(chang)存(cun)在碳氫化合(he)物等(deng)0℃～1300℃范圍內(nei)液體(ti)、蒸(zheng)汽(qi)和氣(qi)體(ti)介質(zhi)以及(ji)固體(ti)表面溫(wen)(wen)度。特(te)點：多(duo)種(zhong)防爆(bao)(bao)形式，防爆(bao)(bao)性(xing)能好(hao)；壓(ya)簧(huang)式感溫(wen)(wen)元(yuan)件(jian)，抗振性(xing)能好(hao)；測(ce)量范圍大；機械(xie)強度高，耐壓(ya)性(xing)能好(hao)；工(gong)作原理防爆(bao)(bao)熱(re)(re)電(dian)(dian)(dian)(dian)偶是利用(yong)(yong)間隙(xi)隔(ge)爆(bao)(bao)原理，設(she)計(ji)具(ju)有足夠強度的(de)接線盒等(deng)部(bu)件(jian)，將所有會產生(sheng)火花、電(dian)(dian)(dian)(dian)孤和危險溫(wen)(wen)度的(de)零部(bu)件(jian)都密封在接線盒內(nei)，當盒內(nei)發生(sheng)爆(bao)(bao)炸時。