防(fang)爆(bao)(bao)加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)是一種(zhong)消(xiao)耗電(dian)能轉換(huan)為(wei)熱(re)(re)(re)(re)能，來(lai)對需加(jia)熱(re)(re)(re)(re)物料進行(xing)加(jia)熱(re)(re)(re)(re)。防(fang)爆(bao)(bao)加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)是由外到里外殼（不繡鋼/碳鋼/銅(tong)/鈦材等(deng)、發熱(re)(re)(re)(re)絲（鎳鉻鉛(qian)合金）、填(tian)充物（氧化鎂，作用(yong)是導熱(re)(re)(re)(re)、絕緣）、外殼（不繡鋼、碳鋼、鈦材、銅(tong)  等(deng)）、陶瓷封(feng)頭（作用(yong)：絕緣）、防(fang)爆(bao)(bao)盒組成的(de)(de)(de)(de)。加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)在工(gong)作中低溫流(liu)體(ti)介(jie)(jie)質通過管(guan)(guan)(guan)道在壓力作用(yong)下進入(ru)其輸入(ru)口，沿著電(dian)加(jia)熱(re)(re)(re)(re)容器(qi)內部特定換(huan)熱(re)(re)(re)(re)流(liu)道，運用(yong)空(kong)氣(qi)電(dian)熱(re)(re)(re)(re)管(guan)(guan)(guan)的(de)(de)(de)(de)流(liu)體(ti)熱(re)(re)(re)(re)力學原(yuan)理(li)設計的(de)(de)(de)(de)路(lu)徑，帶(dai)走空(kong)氣(qi)加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)中的(de)(de)(de)(de)電(dian)熱(re)(re)(re)(re)元件(jian)工(gong)作中所產生(sheng)的(de)(de)(de)(de)高(gao)溫熱(re)(re)(re)(re)能量，使空(kong)氣(qi)加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)被(bei)加(jia)熱(re)(re)(re)(re)介(jie)(jie)質溫度升高(gao)，加(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)出口得到工(gong)藝要求的(de)(de)(de)(de)高(gao)溫介(jie)(jie)質。

產品特(te)點

1.升溫時(shi)間在(zai)試(shi)驗電壓下，元件(jian)從環(huan)境溫度(du)升至試(shi)驗溫度(du)時(shi)間應不大(da)于15min

2.額定(ding)功(gong)率偏差在充分發熱的條件(jian)(jian)下，元件(jian)(jian)的額定(ding)功(gong)率的偏差應不超過(guo)下列規定(ding)的范圍;對(dui)額定(ding)功(gong)率小(xiao)于等于100W的元件(jian)(jian)為:士(shi)10%。對(dui)額定(ding)功(gong)率大(da)于100W的元件(jian)(jian)為+5%~- 10%或10W,取兩者中的較(jiao)大(da)值。

3.泄(xie)露(lu)(lu)(lu)(lu)電(dian)(dian)(dian)流冷態泄(xie)露(lu)(lu)(lu)(lu)電(dian)(dian)(dian)流以及水壓和(he)密封試驗后泄(xie)露(lu)(lu)(lu)(lu)電(dian)(dian)(dian)流應不(bu)(bu)(bu)超(chao)過(guo)0.5mA工(gong)(gong)作溫度下的熱態泄(xie)露(lu)(lu)(lu)(lu)電(dian)(dian)(dian)流應不(bu)(bu)(bu)超(chao)過(guo)公式(shi)中的計算(suan)值，但不(bu)(bu)(bu)超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)露(lu)(lu)(lu)(lu)電(dian)(dian)(dian)流mA t-發熱長(chang)度mm T-工(gong)(gong)作溫度C多個元(yuan)(yuan)件串(chuan)聯到電(dian)(dian)(dian)源中時，應以這一組元(yuan)(yuan)件為 整體(ti)進行泄(xie)露(lu)(lu)(lu)(lu)電(dian)(dian)(dian)流試驗。

4. 絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)出廠檢驗時冷(leng)態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應(ying)(ying)不(bu)小于(yu)50MQ密(mi)封試(shi)驗后，長期存放或者使用后的(de)絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應(ying)(ying)不(bu)消與(yu)MQ工(gong)作溫度(du)下的(de)熱(re)(re)態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應(ying)(ying)不(bu)低于(yu)公式中(zhong)的(de)計算(suan)值，但應(ying)(ying)不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)MQ t一-發 熱(re)(re)長度(du)mmT一工(gong)作溫度(du)°C

5.絕(jue)緣耐(nai)壓強(qiang)度元(yuan)件(jian)應在(zai)規定(ding)的試驗條件(jian)和(he)試驗電壓下保(bao)持1min,而無閃絡和(he)擊穿現(xian)象

6.經受通(tong)斷電(dian)的能力元件應能在規定的試驗條件下經歷2000次通(tong)斷電(dian)試驗，而(er)不發生損(sun)壞