防爆(bao)加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)是一種消耗電(dian)(dian)(dian)能轉換(huan)為熱(re)(re)(re)(re)(re)(re)能，來對需加(jia)熱(re)(re)(re)(re)(re)(re)物料(liao)進行加(jia)熱(re)(re)(re)(re)(re)(re)。防爆(bao)加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)是由外(wai)(wai)到里(li)外(wai)(wai)殼(ke)（不(bu)繡鋼/碳鋼/銅(tong)/鈦材(cai)等(deng)、發熱(re)(re)(re)(re)(re)(re)絲（鎳鉻鉛合(he)金）、填(tian)充物（氧化鎂，作(zuo)用(yong)(yong)是導熱(re)(re)(re)(re)(re)(re)、絕緣）、外(wai)(wai)殼(ke)（不(bu)繡鋼、碳鋼、鈦材(cai)、銅(tong)  等(deng)）、陶瓷封頭（作(zuo)用(yong)(yong)：絕緣）、防爆(bao)盒組成的(de)(de)。加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)在工作(zuo)中低溫(wen)(wen)流體介質通過(guo)管(guan)(guan)(guan)道(dao)在壓力作(zuo)用(yong)(yong)下(xia)進入其輸入口，沿著電(dian)(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)(re)容器內部特定換(huan)熱(re)(re)(re)(re)(re)(re)流道(dao)，運用(yong)(yong)空(kong)(kong)氣電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)的(de)(de)流體熱(re)(re)(re)(re)(re)(re)力學原(yuan)理(li)設計的(de)(de)路徑(jing)，帶走空(kong)(kong)氣加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)中的(de)(de)電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)元件工作(zuo)中所產生的(de)(de)高(gao)(gao)溫(wen)(wen)熱(re)(re)(re)(re)(re)(re)能量，使空(kong)(kong)氣加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)被(bei)加(jia)熱(re)(re)(re)(re)(re)(re)介質溫(wen)(wen)度升高(gao)(gao)，加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)出口得到工藝要(yao)求(qiu)的(de)(de)高(gao)(gao)溫(wen)(wen)介質。

產品特點

1.升溫時間在試驗電壓下(xia)，元件從(cong)環境溫度升至試驗溫度時間應不大于(yu)15min

2.額(e)(e)定(ding)功(gong)率(lv)偏差(cha)在充分(fen)發熱的(de)(de)條件下(xia)，元件的(de)(de)額(e)(e)定(ding)功(gong)率(lv)的(de)(de)偏差(cha)應不超(chao)過(guo)下(xia)列規(gui)定(ding)的(de)(de)范(fan)圍;對額(e)(e)定(ding)功(gong)率(lv)小于(yu)等于(yu)100W的(de)(de)元件為:士10%。對額(e)(e)定(ding)功(gong)率(lv)大于(yu)100W的(de)(de)元件為+5%~- 10%或(huo)10W,取兩者中的(de)(de)較大值。

3.泄露(lu)(lu)電(dian)流冷態泄露(lu)(lu)電(dian)流以(yi)及(ji)水壓和(he)密封試(shi)驗后泄露(lu)(lu)電(dian)流應不(bu)超過(guo)0.5mA工作(zuo)溫度下的熱(re)(re)態泄露(lu)(lu)電(dian)流應不(bu)超過(guo)公式中的計算值，但不(bu)超過(guo)5mA I=1/6 (tTX0.00001) I一 熱(re)(re)態泄露(lu)(lu)電(dian)流mA t-發熱(re)(re)長(chang)度mm T-工作(zuo)溫度C多個元件串聯到電(dian)源中時，應以(yi)這一組元件為(wei) 整體(ti)進行泄露(lu)(lu)電(dian)流試(shi)驗。

4. 絕緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)出廠檢(jian)驗時冷態絕緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)應不(bu)小于50MQ密封試驗后，長期存放或者使用(yong)后的絕緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)應不(bu)消與MQ工作溫度下(xia)的熱(re)態絕緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)應不(bu)低于公式(shi)中的計算值，但應不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)MQ t一(yi)-發 熱(re)長度mmT一(yi)工作溫度°C

5.絕緣耐壓(ya)強度(du)元件應在規(gui)定的試(shi)(shi)驗條件和試(shi)(shi)驗電壓(ya)下(xia)保(bao)持1min,而無(wu)閃絡和擊穿現(xian)象

6.經受通(tong)斷電的能(neng)力元件(jian)應能(neng)在規定的試驗(yan)條件(jian)下經歷2000次通(tong)斷電試驗(yan)，而不發(fa)生損壞