防爆(bao)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)是(shi)一(yi)種消耗電能(neng)(neng)轉換為熱(re)(re)(re)(re)(re)(re)能(neng)(neng)，來對需加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)物(wu)料進(jin)行(xing)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)。防爆(bao)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)是(shi)由外到里外殼（不(bu)繡(xiu)鋼/碳鋼/銅/鈦材等(deng)(deng)、發熱(re)(re)(re)(re)(re)(re)絲（鎳(nie)鉻鉛合金）、填充物(wu)（氧化(hua)鎂，作(zuo)用(yong)是(shi)導(dao)熱(re)(re)(re)(re)(re)(re)、絕(jue)緣）、外殼（不(bu)繡(xiu)鋼、碳鋼、鈦材、銅  等(deng)(deng)）、陶瓷(ci)封(feng)頭(tou)（作(zuo)用(yong)：絕(jue)緣）、防爆(bao)盒組成的(de)(de)(de)(de)。加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)在工作(zuo)中低溫(wen)流(liu)體介(jie)質(zhi)通過管(guan)(guan)(guan)道在壓力作(zuo)用(yong)下進(jin)入(ru)其輸入(ru)口，沿(yan)著電加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)容(rong)器內部(bu)特定換熱(re)(re)(re)(re)(re)(re)流(liu)道，運(yun)用(yong)空氣電熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)的(de)(de)(de)(de)流(liu)體熱(re)(re)(re)(re)(re)(re)力學原(yuan)理設計的(de)(de)(de)(de)路徑(jing)，帶走空氣加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)中的(de)(de)(de)(de)電熱(re)(re)(re)(re)(re)(re)元(yuan)件(jian)工作(zuo)中所(suo)產(chan)生的(de)(de)(de)(de)高溫(wen)熱(re)(re)(re)(re)(re)(re)能(neng)(neng)量(liang)，使空氣加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)被加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)介(jie)質(zhi)溫(wen)度升高，加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)出(chu)口得到工藝(yi)要求(qiu)的(de)(de)(de)(de)高溫(wen)介(jie)質(zhi)。

產品(pin)特點

1.升溫時間在試驗電(dian)壓下，元(yuan)件從環(huan)境溫度升至試驗溫度時間應不大于15min

2.額定(ding)(ding)功(gong)率(lv)(lv)偏差在充分發(fa)熱的條件下，元件的額定(ding)(ding)功(gong)率(lv)(lv)的偏差應不(bu)超過下列規定(ding)(ding)的范(fan)圍;對額定(ding)(ding)功(gong)率(lv)(lv)小(xiao)于等于100W的元件為(wei):士(shi)10%。對額定(ding)(ding)功(gong)率(lv)(lv)大于100W的元件為(wei)+5%~- 10%或10W,取兩者(zhe)中的較大值。

3.泄(xie)露電(dian)(dian)流(liu)冷(leng)態(tai)(tai)泄(xie)露電(dian)(dian)流(liu)以及水壓和密封試(shi)驗(yan)后(hou)泄(xie)露電(dian)(dian)流(liu)應不(bu)超(chao)過(guo)0.5mA工(gong)作溫(wen)度(du)下的(de)熱態(tai)(tai)泄(xie)露電(dian)(dian)流(liu)應不(bu)超(chao)過(guo)公式(shi)中的(de)計算值(zhi)，但不(bu)超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態(tai)(tai)泄(xie)露電(dian)(dian)流(liu)mA t-發熱長度(du)mm T-工(gong)作溫(wen)度(du)C多(duo)個元(yuan)(yuan)件串聯到電(dian)(dian)源(yuan)中時，應以這一組元(yuan)(yuan)件為(wei) 整體進(jin)行泄(xie)露電(dian)(dian)流(liu)試(shi)驗(yan)。

4. 絕緣電(dian)(dian)阻(zu)(zu)出廠檢驗時冷(leng)態(tai)(tai)絕緣電(dian)(dian)阻(zu)(zu)應不(bu)(bu)小(xiao)于50MQ密封試驗后，長期存放或者使用后的(de)絕緣電(dian)(dian)阻(zu)(zu)應不(bu)(bu)消與MQ工作溫度下(xia)的(de)熱(re)態(tai)(tai)絕緣電(dian)(dian)阻(zu)(zu)應不(bu)(bu)低(di)于公式(shi)中的(de)計算值，但(dan)應不(bu)(bu)小(xiao)于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)(tai)絕緣電(dian)(dian)阻(zu)(zu)MQ t一-發 熱(re)長度mmT一工作溫度°C

5.絕緣耐壓(ya)(ya)強度元件(jian)應(ying)在(zai)規定的試(shi)驗條件(jian)和(he)試(shi)驗電壓(ya)(ya)下保持1min,而無閃絡和(he)擊穿(chuan)現象

6.經受通斷電的能力元(yuan)件(jian)應能在規定的試驗(yan)條件(jian)下經歷(li)2000次通斷電試驗(yan)，而不發生損壞