防爆(bao)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)是一種消(xiao)耗電能轉換為(wei)熱(re)(re)(re)能，來對需(xu)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)物料(liao)進行加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)。防爆(bao)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)是由外(wai)(wai)到(dao)里外(wai)(wai)殼（不繡(xiu)鋼/碳(tan)鋼/銅(tong)(tong)/鈦(tai)材等、發熱(re)(re)(re)絲(si)（鎳鉻(ge)鉛(qian)合金）、填充物（氧化鎂，作(zuo)用(yong)是導熱(re)(re)(re)、絕(jue)緣）、外(wai)(wai)殼（不繡(xiu)鋼、碳(tan)鋼、鈦(tai)材、銅(tong)(tong)  等）、陶瓷(ci)封頭（作(zuo)用(yong)：絕(jue)緣）、防爆(bao)盒組成的(de)(de)。加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)在工(gong)(gong)作(zuo)中低(di)溫(wen)流(liu)體介質(zhi)通過管(guan)(guan)道(dao)在壓力作(zuo)用(yong)下進入其輸(shu)入口，沿著電加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)容器內部特定換熱(re)(re)(re)流(liu)道(dao)，運用(yong)空(kong)氣(qi)(qi)電熱(re)(re)(re)管(guan)(guan)的(de)(de)流(liu)體熱(re)(re)(re)力學原理設計的(de)(de)路徑(jing)，帶走空(kong)氣(qi)(qi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)中的(de)(de)電熱(re)(re)(re)元件工(gong)(gong)作(zuo)中所(suo)產生(sheng)的(de)(de)高溫(wen)熱(re)(re)(re)能量，使空(kong)氣(qi)(qi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)被加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)介質(zhi)溫(wen)度升高，加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)出(chu)口得(de)到(dao)工(gong)(gong)藝要求的(de)(de)高溫(wen)介質(zhi)。

產品特點

1.升溫時間(jian)在試驗電壓(ya)下，元件從環境溫度升至(zhi)試驗溫度時間(jian)應不大(da)于15min

2.額(e)定(ding)(ding)(ding)(ding)功率(lv)偏差在充(chong)分發熱(re)的(de)(de)(de)條件下，元(yuan)件的(de)(de)(de)額(e)定(ding)(ding)(ding)(ding)功率(lv)的(de)(de)(de)偏差應不超(chao)過下列規定(ding)(ding)(ding)(ding)的(de)(de)(de)范圍;對額(e)定(ding)(ding)(ding)(ding)功率(lv)小于(yu)等(deng)于(yu)100W的(de)(de)(de)元(yuan)件為:士(shi)10%。對額(e)定(ding)(ding)(ding)(ding)功率(lv)大于(yu)100W的(de)(de)(de)元(yuan)件為+5%~- 10%或(huo)10W,取兩者中(zhong)的(de)(de)(de)較大值。

3.泄(xie)露電(dian)流(liu)冷(leng)態泄(xie)露電(dian)流(liu)以及水壓(ya)和密封(feng)試驗后泄(xie)露電(dian)流(liu)應不(bu)超過(guo)(guo)0.5mA工(gong)作(zuo)溫度下(xia)的(de)熱(re)(re)態泄(xie)露電(dian)流(liu)應不(bu)超過(guo)(guo)公式中的(de)計算值，但不(bu)超過(guo)(guo)5mA I=1/6 (tTX0.00001) I一 熱(re)(re)態泄(xie)露電(dian)流(liu)mA t-發(fa)熱(re)(re)長度mm T-工(gong)作(zuo)溫度C多個元件串聯到電(dian)源中時，應以這一組(zu)元件為 整體進行泄(xie)露電(dian)流(liu)試驗。

4. 絕緣(yuan)(yuan)電(dian)(dian)阻(zu)出廠檢驗時冷態(tai)絕緣(yuan)(yuan)電(dian)(dian)阻(zu)應不(bu)小于(yu)50MQ密封(feng)試(shi)驗后(hou)，長(chang)期存放或(huo)者使用后(hou)的絕緣(yuan)(yuan)電(dian)(dian)阻(zu)應不(bu)消與MQ工作(zuo)溫(wen)度(du)下的熱態(tai)絕緣(yuan)(yuan)電(dian)(dian)阻(zu)應不(bu)低(di)于(yu)公式中(zhong)的計算值，但應不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕緣(yuan)(yuan)電(dian)(dian)阻(zu)MQ t一-發 熱長(chang)度(du)mmT一工作(zuo)溫(wen)度(du)°C

5.絕緣(yuan)耐(nai)壓(ya)強度元件應在規(gui)定的試(shi)驗條件和試(shi)驗電壓(ya)下(xia)保持1min,而無(wu)閃(shan)絡和擊穿現象

6.經受通斷電的(de)能(neng)力元件應能(neng)在規(gui)定(ding)的(de)試驗(yan)條件下(xia)經歷2000次通斷電試驗(yan)，而不發(fa)生損壞(huai)