防爆(bao)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)是一種(zhong)消耗電(dian)能(neng)(neng)轉換(huan)為熱(re)(re)(re)(re)(re)(re)能(neng)(neng)，來對需(xu)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)物料進(jin)行加(jia)(jia)熱(re)(re)(re)(re)(re)(re)。防爆(bao)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)是由外到(dao)里外殼（不(bu)繡鋼(gang)(gang)/碳鋼(gang)(gang)/銅/鈦材等、發(fa)熱(re)(re)(re)(re)(re)(re)絲（鎳鉻(ge)鉛合金(jin)）、填充物（氧化(hua)鎂，作(zuo)(zuo)用(yong)(yong)(yong)是導熱(re)(re)(re)(re)(re)(re)、絕緣(yuan)）、外殼（不(bu)繡鋼(gang)(gang)、碳鋼(gang)(gang)、鈦材、銅  等）、陶瓷封頭（作(zuo)(zuo)用(yong)(yong)(yong)：絕緣(yuan)）、防爆(bao)盒組成的。加(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)在(zai)工(gong)作(zuo)(zuo)中(zhong)低溫流(liu)體(ti)介(jie)質(zhi)通過管(guan)(guan)(guan)(guan)道在(zai)壓力作(zuo)(zuo)用(yong)(yong)(yong)下(xia)進(jin)入其輸入口，沿(yan)著電(dian)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)容器內部特定換(huan)熱(re)(re)(re)(re)(re)(re)流(liu)道，運用(yong)(yong)(yong)空氣(qi)電(dian)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)的流(liu)體(ti)熱(re)(re)(re)(re)(re)(re)力學(xue)原(yuan)理設計的路徑，帶走空氣(qi)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)中(zhong)的電(dian)熱(re)(re)(re)(re)(re)(re)元(yuan)件工(gong)作(zuo)(zuo)中(zhong)所產生的高溫熱(re)(re)(re)(re)(re)(re)能(neng)(neng)量，使空氣(qi)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)被加(jia)(jia)熱(re)(re)(re)(re)(re)(re)介(jie)質(zhi)溫度(du)升高，加(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)出口得到(dao)工(gong)藝要求(qiu)的高溫介(jie)質(zhi)。

產品(pin)特點

1.升溫時間在試(shi)驗(yan)電壓(ya)下，元件從環境溫度升至(zhi)試(shi)驗(yan)溫度時間應不大于15min

2.額(e)(e)定(ding)功率(lv)偏差在(zai)充分發熱的條(tiao)件(jian)(jian)下，元(yuan)件(jian)(jian)的額(e)(e)定(ding)功率(lv)的偏差應不(bu)超過下列規定(ding)的范圍(wei);對額(e)(e)定(ding)功率(lv)小(xiao)于等(deng)于100W的元(yuan)件(jian)(jian)為:士10%。對額(e)(e)定(ding)功率(lv)大于100W的元(yuan)件(jian)(jian)為+5%~- 10%或10W,取(qu)兩者中的較(jiao)大值。

3.泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)冷(leng)態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)以及水(shui)壓和(he)密封試(shi)驗后泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)應不超(chao)過(guo)0.5mA工(gong)作(zuo)溫(wen)度(du)下(xia)的(de)(de)熱態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)應不超(chao)過(guo)公式中的(de)(de)計算值，但不超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)mA t-發熱長度(du)mm T-工(gong)作(zuo)溫(wen)度(du)C多個元件(jian)(jian)串聯到電(dian)(dian)(dian)源中時，應以這一組元件(jian)(jian)為(wei) 整(zheng)體進(jin)行泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)試(shi)驗。

4. 絕緣(yuan)(yuan)電阻(zu)出廠檢(jian)驗時冷態絕緣(yuan)(yuan)電阻(zu)應不小于50MQ密封試驗后，長(chang)期存放或者使用后的絕緣(yuan)(yuan)電阻(zu)應不消與(yu)MQ工作(zuo)溫度(du)(du)下的熱態絕緣(yuan)(yuan)電阻(zu)應不低(di)于公式中的計算值(zhi)，但(dan)應不小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕緣(yuan)(yuan)電阻(zu)MQ t一(yi)-發(fa) 熱長(chang)度(du)(du)mmT一(yi)工作(zuo)溫度(du)(du)°C

5.絕緣耐壓強度元件(jian)應在(zai)規定的試(shi)驗條件(jian)和試(shi)驗電壓下保持1min,而無閃絡和擊穿現象

6.經(jing)受通斷(duan)電(dian)的能力元件應能在規定的試(shi)驗條件下(xia)經(jing)歷2000次(ci)通斷(duan)電(dian)試(shi)驗，而(er)不發(fa)生損壞