防(fang)(fang)(fang)爆(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)是(shi)一種消耗(hao)電(dian)能(neng)轉換(huan)為熱(re)(re)(re)(re)能(neng)，來對(dui)需加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)料(liao)進(jin)行加(jia)(jia)(jia)熱(re)(re)(re)(re)。防(fang)(fang)(fang)爆(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)是(shi)由外(wai)(wai)到(dao)里外(wai)(wai)殼(ke)（不繡鋼(gang)(gang)/碳鋼(gang)(gang)/銅(tong)/鈦材等、發熱(re)(re)(re)(re)絲（鎳(nie)鉻鉛合金(jin)）、填充物(wu)（氧化(hua)鎂，作(zuo)用是(shi)導熱(re)(re)(re)(re)、絕(jue)緣）、外(wai)(wai)殼(ke)（不繡鋼(gang)(gang)、碳鋼(gang)(gang)、鈦材、銅(tong)  等）、陶瓷封頭（作(zuo)用：絕(jue)緣）、防(fang)(fang)(fang)爆(bao)盒組(zu)成的(de)。加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)在工(gong)作(zuo)中低溫流(liu)(liu)體介質通過管(guan)(guan)(guan)(guan)(guan)道在壓力作(zuo)用下進(jin)入其(qi)輸入口，沿著(zhu)電(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)容器(qi)內部特定換(huan)熱(re)(re)(re)(re)流(liu)(liu)道，運用空氣(qi)電(dian)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)的(de)流(liu)(liu)體熱(re)(re)(re)(re)力學原理(li)設計的(de)路徑(jing)，帶走空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)中的(de)電(dian)熱(re)(re)(re)(re)元件工(gong)作(zuo)中所產(chan)生的(de)高溫熱(re)(re)(re)(re)能(neng)量(liang)，使空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)被加(jia)(jia)(jia)熱(re)(re)(re)(re)介質溫度升高，加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)出口得到(dao)工(gong)藝要求的(de)高溫介質。

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試驗溫度時間(jian)應不大于15min

2.額(e)(e)定(ding)(ding)功(gong)率偏差在充(chong)分發(fa)熱的條件(jian)下，元件(jian)的額(e)(e)定(ding)(ding)功(gong)率的偏差應(ying)不超過下列規定(ding)(ding)的范(fan)圍;對額(e)(e)定(ding)(ding)功(gong)率小(xiao)于(yu)等(deng)于(yu)100W的元件(jian)為(wei):士10%。對額(e)(e)定(ding)(ding)功(gong)率大于(yu)100W的元件(jian)為(wei)+5%~- 10%或10W,取兩者中的較大值(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(shui)壓和密封(feng)試(shi)驗后泄露電(dian)(dian)(dian)流(liu)(liu)應(ying)不(bu)超(chao)過0.5mA工(gong)作溫度下的熱態泄露電(dian)(dian)(dian)流(liu)(liu)應(ying)不(bu)超(chao)過公式(shi)中的計算值，但不(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一 熱態泄露電(dian)(dian)(dian)流(liu)(liu)mA t-發(fa)熱長度mm T-工(gong)作溫度C多個元件(jian)串聯到電(dian)(dian)(dian)源中時，應(ying)以這一組元件(jian)為(wei) 整體(ti)進行泄露電(dian)(dian)(dian)流(liu)(liu)試(shi)驗。

4. 絕緣電(dian)(dian)阻出廠檢(jian)驗時冷態絕緣電(dian)(dian)阻應(ying)不小于50MQ密封試驗后(hou)，長期存放或者(zhe)使用(yong)后(hou)的絕緣電(dian)(dian)阻應(ying)不消與MQ工(gong)作溫度下的熱態絕緣電(dian)(dian)阻應(ying)不低于公式中的計算值(zhi)，但(dan)應(ying)不小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕緣電(dian)(dian)阻MQ t一(yi)-發 熱長度mmT一(yi)工(gong)作溫度°C

5.絕緣耐壓強度元件應在(zai)規定的試(shi)驗條(tiao)件和試(shi)驗電壓下保(bao)持1min,而無(wu)閃(shan)絡和擊穿現象(xiang)

6.經受通斷(duan)電的能(neng)力元件應能(neng)在規定的試驗條件下(xia)經歷2000次通斷(duan)電試驗，而不發生損壞