防爆(bao)加熱(re)(re)(re)(re)(re)管(guan)(guan)是(shi)(shi)(shi)一種消耗電能轉換為(wei)熱(re)(re)(re)(re)(re)能，來對需加熱(re)(re)(re)(re)(re)物料進行加熱(re)(re)(re)(re)(re)。防爆(bao)加熱(re)(re)(re)(re)(re)管(guan)(guan)是(shi)(shi)(shi)由外到里外殼（不繡(xiu)鋼/碳鋼/銅(tong)/鈦材等、發熱(re)(re)(re)(re)(re)絲（鎳鉻(ge)鉛合金）、填充物（氧化鎂，作(zuo)(zuo)用是(shi)(shi)(shi)導(dao)熱(re)(re)(re)(re)(re)、絕(jue)(jue)緣(yuan)）、外殼（不繡(xiu)鋼、碳鋼、鈦材、銅(tong)  等）、陶(tao)瓷封頭（作(zuo)(zuo)用：絕(jue)(jue)緣(yuan)）、防爆(bao)盒組成的(de)(de)(de)。加熱(re)(re)(re)(re)(re)管(guan)(guan)在(zai)工作(zuo)(zuo)中(zhong)低(di)溫流(liu)體介質通過管(guan)(guan)道(dao)在(zai)壓(ya)力(li)作(zuo)(zuo)用下進入其輸入口，沿著電加熱(re)(re)(re)(re)(re)容器(qi)內部特定換熱(re)(re)(re)(re)(re)流(liu)道(dao)，運用空(kong)氣(qi)(qi)電熱(re)(re)(re)(re)(re)管(guan)(guan)的(de)(de)(de)流(liu)體熱(re)(re)(re)(re)(re)力(li)學原理設計的(de)(de)(de)路徑，帶走空(kong)氣(qi)(qi)加熱(re)(re)(re)(re)(re)管(guan)(guan)中(zhong)的(de)(de)(de)電熱(re)(re)(re)(re)(re)元件工作(zuo)(zuo)中(zhong)所產生的(de)(de)(de)高(gao)(gao)溫熱(re)(re)(re)(re)(re)能量，使空(kong)氣(qi)(qi)加熱(re)(re)(re)(re)(re)管(guan)(guan)被(bei)加熱(re)(re)(re)(re)(re)介質溫度升高(gao)(gao)，加熱(re)(re)(re)(re)(re)管(guan)(guan)出口得到工藝要求的(de)(de)(de)高(gao)(gao)溫介質。

產品特點

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

2.額(e)定(ding)(ding)功率(lv)偏差在(zai)充分發(fa)熱的條件(jian)下，元件(jian)的額(e)定(ding)(ding)功率(lv)的偏差應不超(chao)過下列規定(ding)(ding)的范圍(wei);對額(e)定(ding)(ding)功率(lv)小于(yu)等(deng)于(yu)100W的元件(jian)為:士10%。對額(e)定(ding)(ding)功率(lv)大于(yu)100W的元件(jian)為+5%~- 10%或10W,取(qu)兩者(zhe)中(zhong)的較大值。

3.泄(xie)(xie)露電(dian)(dian)(dian)(dian)(dian)流冷態(tai)(tai)泄(xie)(xie)露電(dian)(dian)(dian)(dian)(dian)流以及水壓和密(mi)封試(shi)驗后(hou)泄(xie)(xie)露電(dian)(dian)(dian)(dian)(dian)流應(ying)不(bu)(bu)超(chao)過(guo)(guo)0.5mA工作(zuo)溫度(du)下的熱(re)態(tai)(tai)泄(xie)(xie)露電(dian)(dian)(dian)(dian)(dian)流應(ying)不(bu)(bu)超(chao)過(guo)(guo)公式中(zhong)的計算值，但不(bu)(bu)超(chao)過(guo)(guo)5mA I=1/6 (tTX0.00001) I一 熱(re)態(tai)(tai)泄(xie)(xie)露電(dian)(dian)(dian)(dian)(dian)流mA t-發熱(re)長(chang)度(du)mm T-工作(zuo)溫度(du)C多(duo)個元件串(chuan)聯到電(dian)(dian)(dian)(dian)(dian)源中(zhong)時，應(ying)以這一組元件為 整體(ti)進行泄(xie)(xie)露電(dian)(dian)(dian)(dian)(dian)流試(shi)驗。

4. 絕(jue)(jue)緣電阻(zu)出廠(chang)檢驗(yan)時冷態絕(jue)(jue)緣電阻(zu)應(ying)不(bu)(bu)小于(yu)50MQ密封試驗(yan)后(hou)，長期存放或(huo)者使用后(hou)的絕(jue)(jue)緣電阻(zu)應(ying)不(bu)(bu)消與MQ工作(zuo)溫(wen)度(du)下(xia)的熱態絕(jue)(jue)緣電阻(zu)應(ying)不(bu)(bu)低于(yu)公式中的計算(suan)值，但(dan)應(ying)不(bu)(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)(jue)緣電阻(zu)MQ t一-發(fa) 熱長度(du)mmT一工作(zuo)溫(wen)度(du)°C

5.絕緣耐壓強度元件(jian)應在(zai)規定(ding)的試驗條(tiao)件(jian)和(he)試驗電(dian)壓下保持1min,而無閃絡和(he)擊穿現(xian)象

6.經受通斷電(dian)(dian)的能(neng)力元(yuan)件應能(neng)在規定的試驗(yan)條件下經歷2000次通斷電(dian)(dian)試驗(yan)，而(er)不發生(sheng)損壞(huai)