防(fang)(fang)爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是(shi)(shi)一(yi)種消耗電(dian)(dian)能轉換(huan)為(wei)熱(re)(re)(re)(re)能，來對(dui)需加(jia)(jia)(jia)熱(re)(re)(re)(re)物料(liao)進(jin)行(xing)加(jia)(jia)(jia)熱(re)(re)(re)(re)。防(fang)(fang)爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是(shi)(shi)由外(wai)到(dao)里外(wai)殼(ke)（不繡(xiu)鋼/碳鋼/銅(tong)/鈦材等、發熱(re)(re)(re)(re)絲(si)（鎳鉻鉛合金）、填(tian)充物（氧(yang)化鎂，作(zuo)用是(shi)(shi)導熱(re)(re)(re)(re)、絕(jue)緣）、外(wai)殼(ke)（不繡(xiu)鋼、碳鋼、鈦材、銅(tong)  等）、陶瓷封頭（作(zuo)用：絕(jue)緣）、防(fang)(fang)爆盒組成(cheng)的。加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)在工作(zuo)中(zhong)(zhong)低溫(wen)流體介(jie)質(zhi)通(tong)過管(guan)(guan)道在壓力作(zuo)用下進(jin)入(ru)其輸入(ru)口，沿(yan)著(zhu)電(dian)(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)容器內部(bu)特定換(huan)熱(re)(re)(re)(re)流道，運(yun)用空氣(qi)電(dian)(dian)熱(re)(re)(re)(re)管(guan)(guan)的流體熱(re)(re)(re)(re)力學原理設計的路徑，帶走空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)中(zhong)(zhong)的電(dian)(dian)熱(re)(re)(re)(re)元件工作(zuo)中(zhong)(zhong)所產(chan)生的高(gao)溫(wen)熱(re)(re)(re)(re)能量，使空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)被加(jia)(jia)(jia)熱(re)(re)(re)(re)介(jie)質(zhi)溫(wen)度(du)升高(gao)，加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)出口得(de)到(dao)工藝要求的高(gao)溫(wen)介(jie)質(zhi)。

產品特點

1.升溫(wen)時間在試驗電壓下，元件從環境溫(wen)度升至(zhi)試驗溫(wen)度時間應不(bu)大于15min

2.額定功(gong)率偏差(cha)在充(chong)分發熱的條件(jian)(jian)下，元件(jian)(jian)的額定功(gong)率的偏差(cha)應不(bu)超過下列(lie)規定的范圍(wei);對(dui)額定功(gong)率小于(yu)等于(yu)100W的元件(jian)(jian)為(wei):士10%。對(dui)額定功(gong)率大于(yu)100W的元件(jian)(jian)為(wei)+5%~- 10%或10W,取兩者中(zhong)的較大值(zhi)。

3.泄露電(dian)(dian)(dian)流(liu)(liu)冷態泄露電(dian)(dian)(dian)流(liu)(liu)以及水壓和密封試驗(yan)后泄露電(dian)(dian)(dian)流(liu)(liu)應(ying)(ying)不(bu)超過0.5mA工作溫(wen)度(du)下的(de)熱(re)態泄露電(dian)(dian)(dian)流(liu)(liu)應(ying)(ying)不(bu)超過公式中的(de)計算值，但不(bu)超過5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態泄露電(dian)(dian)(dian)流(liu)(liu)mA t-發(fa)熱(re)長度(du)mm T-工作溫(wen)度(du)C多個元件(jian)(jian)串(chuan)聯到(dao)電(dian)(dian)(dian)源中時，應(ying)(ying)以這一(yi)組元件(jian)(jian)為 整體進行泄露電(dian)(dian)(dian)流(liu)(liu)試驗(yan)。

4. 絕(jue)緣電阻出廠檢(jian)驗(yan)時冷態(tai)絕(jue)緣電阻應(ying)(ying)不(bu)(bu)小(xiao)于(yu)50MQ密封(feng)試驗(yan)后，長期存放或者使用后的絕(jue)緣電阻應(ying)(ying)不(bu)(bu)消與MQ工(gong)作溫度(du)下的熱態(tai)絕(jue)緣電阻應(ying)(ying)不(bu)(bu)低(di)于(yu)公式中的計算值(zhi)，但應(ying)(ying)不(bu)(bu)小(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕(jue)緣電阻MQ t一-發 熱長度(du)mmT一工(gong)作溫度(du)°C

5.絕緣耐壓(ya)(ya)強(qiang)度元(yuan)件應在規定的試驗條件和試驗電壓(ya)(ya)下保持1min,而無(wu)閃(shan)絡和擊穿現象(xiang)

6.經(jing)受通(tong)斷電的能(neng)力元件應(ying)能(neng)在(zai)規定的試(shi)驗(yan)條(tiao)件下經(jing)歷2000次通(tong)斷電試(shi)驗(yan)，而不發生損壞