防爆(bao)(bao)加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)是(shi)(shi)一(yi)種(zhong)消(xiao)耗(hao)電能轉換為熱(re)(re)(re)(re)能，來對需加(jia)熱(re)(re)(re)(re)物料(liao)進行加(jia)熱(re)(re)(re)(re)。防爆(bao)(bao)加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)是(shi)(shi)由外(wai)到里外(wai)殼（不繡鋼(gang)/碳鋼(gang)/銅(tong)/鈦材等(deng)、發(fa)熱(re)(re)(re)(re)絲(si)（鎳(nie)鉻鉛(qian)合(he)金）、填充物（氧化(hua)鎂(mei)，作用(yong)是(shi)(shi)導熱(re)(re)(re)(re)、絕緣）、外(wai)殼（不繡鋼(gang)、碳鋼(gang)、鈦材、銅(tong)  等(deng)）、陶(tao)瓷封頭（作用(yong)：絕緣）、防爆(bao)(bao)盒組成(cheng)的。加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)在工(gong)作中(zhong)低溫(wen)流(liu)(liu)體介質通過管(guan)(guan)(guan)(guan)(guan)道在壓力作用(yong)下進入其(qi)輸(shu)入口(kou)，沿著(zhu)電加(jia)熱(re)(re)(re)(re)容器內部特定(ding)換熱(re)(re)(re)(re)流(liu)(liu)道，運用(yong)空(kong)(kong)氣(qi)電熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)的流(liu)(liu)體熱(re)(re)(re)(re)力學原理設計(ji)的路徑，帶走空(kong)(kong)氣(qi)加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)中(zhong)的電熱(re)(re)(re)(re)元件工(gong)作中(zhong)所產生的高(gao)溫(wen)熱(re)(re)(re)(re)能量(liang)，使空(kong)(kong)氣(qi)加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)被加(jia)熱(re)(re)(re)(re)介質溫(wen)度升高(gao)，加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)出口(kou)得到工(gong)藝(yi)要求的高(gao)溫(wen)介質。

產品(pin)特(te)點

1.升溫時間在試(shi)驗(yan)電壓(ya)下，元件從環境溫度(du)升至試(shi)驗(yan)溫度(du)時間應(ying)不大(da)于15min

2.額定(ding)功(gong)率(lv)偏差(cha)在充分發熱的條(tiao)件下，元(yuan)(yuan)件的額定(ding)功(gong)率(lv)的偏差(cha)應不超過下列規定(ding)的范圍;對額定(ding)功(gong)率(lv)小于等(deng)于100W的元(yuan)(yuan)件為:士10%。對額定(ding)功(gong)率(lv)大于100W的元(yuan)(yuan)件為+5%~- 10%或10W,取兩者(zhe)中的較大值(zhi)。

3.泄(xie)(xie)露電(dian)流(liu)(liu)(liu)冷態(tai)泄(xie)(xie)露電(dian)流(liu)(liu)(liu)以及水壓和(he)密封(feng)試驗(yan)后泄(xie)(xie)露電(dian)流(liu)(liu)(liu)應(ying)(ying)不(bu)超(chao)過0.5mA工作(zuo)溫(wen)度下(xia)的熱(re)(re)態(tai)泄(xie)(xie)露電(dian)流(liu)(liu)(liu)應(ying)(ying)不(bu)超(chao)過公式中(zhong)(zhong)的計算(suan)值，但不(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一 熱(re)(re)態(tai)泄(xie)(xie)露電(dian)流(liu)(liu)(liu)mA t-發熱(re)(re)長度mm T-工作(zuo)溫(wen)度C多個(ge)元件(jian)串聯(lian)到電(dian)源中(zhong)(zhong)時，應(ying)(ying)以這一組元件(jian)為 整體進行(xing)泄(xie)(xie)露電(dian)流(liu)(liu)(liu)試驗(yan)。

4. 絕(jue)(jue)緣(yuan)電(dian)阻(zu)出(chu)廠檢(jian)驗時冷態絕(jue)(jue)緣(yuan)電(dian)阻(zu)應不(bu)小于50MQ密封(feng)試驗后(hou)，長期(qi)存放或者使用后(hou)的(de)絕(jue)(jue)緣(yuan)電(dian)阻(zu)應不(bu)消與MQ工(gong)作(zuo)溫度(du)下的(de)熱(re)態絕(jue)(jue)緣(yuan)電(dian)阻(zu)應不(bu)低于公式中的(de)計(ji)算值，但應不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕(jue)(jue)緣(yuan)電(dian)阻(zu)MQ t一(yi)-發(fa) 熱(re)長度(du)mmT一(yi)工(gong)作(zuo)溫度(du)°C

5.絕緣耐(nai)壓(ya)強度元件應(ying)在(zai)規定的試驗條(tiao)件和試驗電壓(ya)下(xia)保持(chi)1min,而無閃絡和擊穿現象(xiang)

6.經受通(tong)斷電(dian)的能力(li)元件應能在規定(ding)的試驗條(tiao)件下經歷(li)2000次通(tong)斷電(dian)試驗，而不發(fa)生損(sun)壞(huai)