防爆加(jia)熱(re)(re)(re)管(guan)(guan)是(shi)一種消耗電能(neng)(neng)轉(zhuan)換(huan)(huan)為熱(re)(re)(re)能(neng)(neng)，來對需加(jia)熱(re)(re)(re)物料(liao)進(jin)行(xing)加(jia)熱(re)(re)(re)。防爆加(jia)熱(re)(re)(re)管(guan)(guan)是(shi)由(you)外到里外殼（不(bu)繡鋼/碳鋼/銅/鈦材等(deng)、發熱(re)(re)(re)絲（鎳鉻鉛合金）、填充物（氧化(hua)鎂，作(zuo)(zuo)用(yong)是(shi)導熱(re)(re)(re)、絕緣）、外殼（不(bu)繡鋼、碳鋼、鈦材、銅  等(deng)）、陶瓷封頭（作(zuo)(zuo)用(yong)：絕緣）、防爆盒組成的。加(jia)熱(re)(re)(re)管(guan)(guan)在工(gong)(gong)作(zuo)(zuo)中(zhong)(zhong)低(di)溫流體介質(zhi)通(tong)過管(guan)(guan)道(dao)在壓力作(zuo)(zuo)用(yong)下(xia)進(jin)入(ru)其輸(shu)入(ru)口，沿著(zhu)電加(jia)熱(re)(re)(re)容器內(nei)部特定換(huan)(huan)熱(re)(re)(re)流道(dao)，運用(yong)空氣(qi)電熱(re)(re)(re)管(guan)(guan)的流體熱(re)(re)(re)力學原理設計的路徑，帶走(zou)空氣(qi)加(jia)熱(re)(re)(re)管(guan)(guan)中(zhong)(zhong)的電熱(re)(re)(re)元件工(gong)(gong)作(zuo)(zuo)中(zhong)(zhong)所產生的高(gao)溫熱(re)(re)(re)能(neng)(neng)量，使空氣(qi)加(jia)熱(re)(re)(re)管(guan)(guan)被加(jia)熱(re)(re)(re)介質(zhi)溫度升高(gao)，加(jia)熱(re)(re)(re)管(guan)(guan)出口得(de)到工(gong)(gong)藝(yi)要(yao)求(qiu)的高(gao)溫介質(zhi)。

產(chan)品特點

1.升(sheng)(sheng)溫時(shi)間(jian)在(zai)試驗電壓下，元件從(cong)環(huan)境(jing)溫度升(sheng)(sheng)至(zhi)試驗溫度時(shi)間(jian)應不大(da)于15min

2.額(e)(e)定功率偏(pian)差(cha)在充分發熱的條件(jian)下(xia)，元(yuan)件(jian)的額(e)(e)定功率的偏(pian)差(cha)應不超過(guo)下(xia)列規定的范圍;對額(e)(e)定功率小于(yu)等于(yu)100W的元(yuan)件(jian)為:士10%。對額(e)(e)定功率大于(yu)100W的元(yuan)件(jian)為+5%~- 10%或10W,取兩者中的較大值。

3.泄露(lu)電(dian)流(liu)冷態泄露(lu)電(dian)流(liu)以及(ji)水(shui)壓和密(mi)封試驗后泄露(lu)電(dian)流(liu)應(ying)不(bu)(bu)超(chao)過(guo)0.5mA工作溫度(du)下(xia)的(de)熱(re)態泄露(lu)電(dian)流(liu)應(ying)不(bu)(bu)超(chao)過(guo)公(gong)式中(zhong)的(de)計算(suan)值，但不(bu)(bu)超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態泄露(lu)電(dian)流(liu)mA t-發熱(re)長度(du)mm T-工作溫度(du)C多個元件(jian)串聯到(dao)電(dian)源中(zhong)時，應(ying)以這一(yi)組(zu)元件(jian)為 整體進行泄露(lu)電(dian)流(liu)試驗。

4. 絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻出廠檢驗(yan)(yan)時冷態絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻應不(bu)小(xiao)于(yu)50MQ密封試(shi)驗(yan)(yan)后(hou)，長(chang)(chang)期存放或者使(shi)用后(hou)的絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻應不(bu)消與(yu)MQ工作溫度下的熱(re)態絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻應不(bu)低于(yu)公式中的計(ji)算(suan)值，但(dan)應不(bu)小(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻MQ t一-發 熱(re)長(chang)(chang)度mmT一工作溫度°C

5.絕(jue)緣耐壓(ya)強度元(yuan)件(jian)(jian)應在(zai)規定的試驗(yan)條件(jian)(jian)和試驗(yan)電壓(ya)下保(bao)持1min,而無閃(shan)絡和擊穿現象

6.經受通斷電(dian)的能力元件(jian)應能在規定的試(shi)驗條件(jian)下經歷2000次通斷電(dian)試(shi)驗，而不發生(sheng)損壞