防(fang)爆(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是(shi)一種消耗電(dian)能轉換為熱(re)(re)(re)(re)能，來對需加(jia)(jia)(jia)熱(re)(re)(re)(re)物料進(jin)行加(jia)(jia)(jia)熱(re)(re)(re)(re)。防(fang)爆(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是(shi)由外(wai)(wai)到里外(wai)(wai)殼（不繡鋼(gang)/碳(tan)鋼(gang)/銅/鈦(tai)材(cai)等(deng)、發熱(re)(re)(re)(re)絲（鎳(nie)鉻鉛合金）、填充物（氧化鎂，作(zuo)用(yong)(yong)是(shi)導熱(re)(re)(re)(re)、絕緣）、外(wai)(wai)殼（不繡鋼(gang)、碳(tan)鋼(gang)、鈦(tai)材(cai)、銅  等(deng)）、陶瓷(ci)封頭（作(zuo)用(yong)(yong)：絕緣）、防(fang)爆(bao)盒(he)組成的(de)。加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)在工(gong)作(zuo)中低(di)溫流(liu)體(ti)介(jie)質(zhi)通過管(guan)(guan)道(dao)在壓(ya)力作(zuo)用(yong)(yong)下進(jin)入其輸(shu)入口(kou)，沿著電(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)容器內部特定換熱(re)(re)(re)(re)流(liu)道(dao)，運(yun)用(yong)(yong)空(kong)(kong)氣(qi)電(dian)熱(re)(re)(re)(re)管(guan)(guan)的(de)流(liu)體(ti)熱(re)(re)(re)(re)力學原理設(she)計的(de)路徑，帶走空(kong)(kong)氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)中的(de)電(dian)熱(re)(re)(re)(re)元件工(gong)作(zuo)中所產生的(de)高(gao)溫熱(re)(re)(re)(re)能量，使(shi)空(kong)(kong)氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)被(bei)加(jia)(jia)(jia)熱(re)(re)(re)(re)介(jie)質(zhi)溫度升(sheng)高(gao)，加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)出口(kou)得到工(gong)藝要求的(de)高(gao)溫介(jie)質(zhi)。

產品特點

1.升溫(wen)時(shi)間在試驗(yan)電壓下，元件從環境溫(wen)度升至試驗(yan)溫(wen)度時(shi)間應不大于15min

2.額定功(gong)(gong)(gong)率偏差在充(chong)分(fen)發熱(re)的條件(jian)(jian)下(xia)，元件(jian)(jian)的額定功(gong)(gong)(gong)率的偏差應不超過下(xia)列規(gui)定的范圍(wei);對(dui)額定功(gong)(gong)(gong)率小于等于100W的元件(jian)(jian)為(wei):士10%。對(dui)額定功(gong)(gong)(gong)率大于100W的元件(jian)(jian)為(wei)+5%~- 10%或10W,取(qu)兩者中的較大值。

3.泄(xie)露電(dian)流(liu)(liu)冷態泄(xie)露電(dian)流(liu)(liu)以及水壓和密封試(shi)(shi)驗后泄(xie)露電(dian)流(liu)(liu)應(ying)不超(chao)過(guo)0.5mA工作溫(wen)度下(xia)的熱(re)態泄(xie)露電(dian)流(liu)(liu)應(ying)不超(chao)過(guo)公式中(zhong)的計算值(zhi)，但(dan)不超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱(re)態泄(xie)露電(dian)流(liu)(liu)mA t-發熱(re)長(chang)度mm T-工作溫(wen)度C多個元(yuan)件(jian)串(chuan)聯到(dao)電(dian)源(yuan)中(zhong)時，應(ying)以這一組元(yuan)件(jian)為 整體(ti)進行泄(xie)露電(dian)流(liu)(liu)試(shi)(shi)驗。

4. 絕(jue)緣電(dian)阻(zu)出廠檢(jian)驗(yan)時冷(leng)態(tai)絕(jue)緣電(dian)阻(zu)應不(bu)小于(yu)50MQ密封試驗(yan)后，長(chang)期存放(fang)或者(zhe)使用(yong)后的絕(jue)緣電(dian)阻(zu)應不(bu)消與(yu)MQ工作(zuo)溫度(du)下的熱(re)態(tai)絕(jue)緣電(dian)阻(zu)應不(bu)低(di)于(yu)公式中的計(ji)算值，但應不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕(jue)緣電(dian)阻(zu)MQ t一-發 熱(re)長(chang)度(du)mmT一工作(zuo)溫度(du)°C

5.絕緣(yuan)耐壓強(qiang)度元件(jian)應在規定的試驗條件(jian)和(he)試驗電壓下保持1min,而無閃(shan)絡和(he)擊(ji)穿現象(xiang)

6.經受通斷(duan)電的能力元(yuan)件應能在規(gui)定(ding)的試驗(yan)條件下經歷2000次通斷(duan)電試驗(yan)，而不發生(sheng)損壞