防(fang)爆(bao)加(jia)熱(re)(re)(re)(re)(re)(re)管是一種消耗電能轉換為(wei)熱(re)(re)(re)(re)(re)(re)能,來(lai)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(fang)爆(bao)加(jia)熱(re)(re)(re)(re)(re)(re)管是由外(wai)到(dao)里外(wai)殼(不(bu)(bu)繡鋼/碳鋼/銅/鈦材等、發(fa)熱(re)(re)(re)(re)(re)(re)絲(si)(鎳(nie)鉻鉛合金(jin))、填充物(氧化鎂,作(zuo)用(yong)(yong)是導熱(re)(re)(re)(re)(re)(re)、絕緣)、外(wai)殼(不(bu)(bu)繡鋼、碳鋼、鈦材、銅 等)、陶瓷封頭(作(zuo)用(yong)(yong):絕緣)、防(fang)爆(bao)盒(he)組成(cheng)的(de)。加(jia)熱(re)(re)(re)(re)(re)(re)管在工作(zuo)中低溫(wen)(wen)(wen)流(liu)體介質通過管道在壓力作(zuo)用(yong)(yong)下進入(ru)其輸入(ru)口,沿(yan)著電加(jia)熱(re)(re)(re)(re)(re)(re)容器(qi)內(nei)部特定換熱(re)(re)(re)(re)(re)(re)流(liu)道,運用(yong)(yong)空氣(qi)電熱(re)(re)(re)(re)(re)(re)管的(de)流(liu)體熱(re)(re)(re)(re)(re)(re)力學原理設計的(de)路徑,帶走空氣(qi)加(jia)熱(re)(re)(re)(re)(re)(re)管中的(de)電熱(re)(re)(re)(re)(re)(re)元件工作(zuo)中所產生的(de)高溫(wen)(wen)(wen)熱(re)(re)(re)(re)(re)(re)能量(liang),使空氣(qi)加(jia)熱(re)(re)(re)(re)(re)(re)管被加(jia)熱(re)(re)(re)(re)(re)(re)介質溫(wen)(wen)(wen)度升高,加(jia)熱(re)(re)(re)(re)(re)(re)管出口得到(dao)工藝要(yao)求的(de)高溫(wen)(wen)(wen)介質。
產品(pin)特點
1.升溫(wen)時(shi)(shi)間在試驗電壓(ya)下(xia),元件從環境溫(wen)度升至(zhi)試驗溫(wen)度時(shi)(shi)間應不大(da)于15min
2.額定(ding)功率(lv)偏差在充分發熱的條件(jian)下,元件(jian)的額定(ding)功率(lv)的偏差應不超過(guo)下列規定(ding)的范圍;對(dui)額定(ding)功率(lv)小于等于100W的元件(jian)為(wei):士10%。對(dui)額定(ding)功率(lv)大于100W的元件(jian)為(wei)+5%~- 10%或10W,取兩(liang)者中的較大值。
3.泄露電(dian)(dian)(dian)流冷態(tai)泄露電(dian)(dian)(dian)流以及水壓和密封(feng)試(shi)驗后泄露電(dian)(dian)(dian)流應(ying)不超(chao)(chao)過(guo)0.5mA工(gong)作(zuo)溫度下的熱態(tai)泄露電(dian)(dian)(dian)流應(ying)不超(chao)(chao)過(guo)公式(shi)中的計算值,但(dan)不超(chao)(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄露電(dian)(dian)(dian)流mA t-發熱長度mm T-工(gong)作(zuo)溫度C多個元件(jian)串聯到電(dian)(dian)(dian)源(yuan)中時(shi),應(ying)以這一組元件(jian)為(wei) 整體進行(xing)泄露電(dian)(dian)(dian)流試(shi)驗。
4. 絕(jue)緣(yuan)電(dian)(dian)阻出(chu)廠檢(jian)驗時冷態絕(jue)緣(yuan)電(dian)(dian)阻應(ying)不(bu)小于(yu)50MQ密封(feng)試驗后(hou)(hou),長(chang)(chang)期存(cun)放或者使(shi)用后(hou)(hou)的(de)(de)絕(jue)緣(yuan)電(dian)(dian)阻應(ying)不(bu)消與MQ工作溫度下的(de)(de)熱(re)態絕(jue)緣(yuan)電(dian)(dian)阻應(ying)不(bu)低于(yu)公式中的(de)(de)計算值,但應(ying)不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕(jue)緣(yuan)電(dian)(dian)阻MQ t一(yi)-發 熱(re)長(chang)(chang)度mmT一(yi)工作溫度°C
5.絕緣耐壓強度元件應在(zai)規定的(de)試(shi)驗(yan)條件和試(shi)驗(yan)電壓下保(bao)持1min,而無閃絡(luo)和擊穿現象
6.經受通斷電(dian)的能力元(yuan)件應能在規定的試(shi)(shi)驗條(tiao)件下經歷2000次通斷電(dian)試(shi)(shi)驗,而不發生損壞