防(fang)爆(bao)加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是一種消耗電能轉(zhuan)換為熱(re)(re)(re)(re)能，來對需加(jia)(jia)熱(re)(re)(re)(re)物(wu)(wu)料(liao)進(jin)行加(jia)(jia)熱(re)(re)(re)(re)。防(fang)爆(bao)加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是由外(wai)到(dao)里外(wai)殼(ke)（不(bu)繡鋼(gang)/碳鋼(gang)/銅/鈦材(cai)等(deng)、發(fa)熱(re)(re)(re)(re)絲(si)（鎳鉻(ge)鉛合金）、填充物(wu)(wu)（氧化(hua)鎂，作(zuo)用(yong)(yong)是導(dao)熱(re)(re)(re)(re)、絕(jue)緣）、外(wai)殼(ke)（不(bu)繡鋼(gang)、碳鋼(gang)、鈦材(cai)、銅  等(deng)）、陶瓷封頭(tou)（作(zuo)用(yong)(yong)：絕(jue)緣）、防(fang)爆(bao)盒組(zu)成(cheng)的(de)。加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)在(zai)工(gong)(gong)作(zuo)中(zhong)(zhong)低(di)溫(wen)流體介質通過管(guan)(guan)道在(zai)壓力(li)作(zuo)用(yong)(yong)下(xia)進(jin)入(ru)其(qi)輸(shu)入(ru)口(kou)，沿著電加(jia)(jia)熱(re)(re)(re)(re)容(rong)器內部(bu)特定換熱(re)(re)(re)(re)流道，運用(yong)(yong)空氣(qi)電熱(re)(re)(re)(re)管(guan)(guan)的(de)流體熱(re)(re)(re)(re)力(li)學原(yuan)理(li)設計(ji)的(de)路徑，帶走空氣(qi)加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)中(zhong)(zhong)的(de)電熱(re)(re)(re)(re)元(yuan)件工(gong)(gong)作(zuo)中(zhong)(zhong)所產生的(de)高(gao)溫(wen)熱(re)(re)(re)(re)能量，使空氣(qi)加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)被(bei)加(jia)(jia)熱(re)(re)(re)(re)介質溫(wen)度升高(gao)，加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)出口(kou)得到(dao)工(gong)(gong)藝要求的(de)高(gao)溫(wen)介質。

產品特點

1.升溫(wen)時(shi)間在試驗電壓下，元(yuan)件從環境溫(wen)度升至試驗溫(wen)度時(shi)間應不大于15min

2.額定(ding)(ding)(ding)功(gong)率(lv)偏(pian)差在充分發(fa)熱(re)的條件(jian)下，元(yuan)(yuan)件(jian)的額定(ding)(ding)(ding)功(gong)率(lv)的偏(pian)差應不(bu)超過下列規定(ding)(ding)(ding)的范圍;對(dui)額定(ding)(ding)(ding)功(gong)率(lv)小于等于100W的元(yuan)(yuan)件(jian)為:士10%。對(dui)額定(ding)(ding)(ding)功(gong)率(lv)大于100W的元(yuan)(yuan)件(jian)為+5%~- 10%或10W,取(qu)兩者中(zhong)的較大值(zhi)。

3.泄露(lu)電流(liu)(liu)冷態(tai)泄露(lu)電流(liu)(liu)以(yi)及水壓和密(mi)封試(shi)驗后泄露(lu)電流(liu)(liu)應(ying)不超過0.5mA工(gong)作溫度(du)下的(de)(de)熱態(tai)泄露(lu)電流(liu)(liu)應(ying)不超過公式中(zhong)的(de)(de)計(ji)算(suan)值，但不超過5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄露(lu)電流(liu)(liu)mA t-發熱長度(du)mm T-工(gong)作溫度(du)C多個元件(jian)串聯到(dao)電源(yuan)中(zhong)時，應(ying)以(yi)這一組元件(jian)為 整(zheng)體進行泄露(lu)電流(liu)(liu)試(shi)驗。

4. 絕緣(yuan)電(dian)(dian)阻(zu)出廠(chang)檢(jian)驗時冷態(tai)絕緣(yuan)電(dian)(dian)阻(zu)應不(bu)小于(yu)50MQ密封試驗后，長期(qi)存放或者使(shi)用后的絕緣(yuan)電(dian)(dian)阻(zu)應不(bu)消(xiao)與MQ工作(zuo)溫度下(xia)的熱(re)態(tai)絕緣(yuan)電(dian)(dian)阻(zu)應不(bu)低于(yu)公式中的計算值(zhi)，但應不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕緣(yuan)電(dian)(dian)阻(zu)MQ t一-發 熱(re)長度mmT一工作(zuo)溫度°C

5.絕緣耐壓強(qiang)度(du)元(yuan)件應在(zai)規(gui)定的試(shi)驗(yan)條件和試(shi)驗(yan)電壓下保持1min,而(er)無閃絡和擊(ji)穿現(xian)象

6.經受通斷電的能(neng)(neng)力元(yuan)件(jian)應能(neng)(neng)在規定的試驗條件(jian)下經歷2000次(ci)通斷電試驗，而不發生損壞