防(fang)爆(bao)加熱(re)(re)(re)(re)(re)管(guan)(guan)是一種(zhong)消耗(hao)電能(neng)(neng)轉換(huan)為熱(re)(re)(re)(re)(re)能(neng)(neng)，來對需(xu)加熱(re)(re)(re)(re)(re)物(wu)料進(jin)行加熱(re)(re)(re)(re)(re)。防(fang)爆(bao)加熱(re)(re)(re)(re)(re)管(guan)(guan)是由外(wai)到里外(wai)殼(ke)（不(bu)繡鋼/碳(tan)(tan)鋼/銅(tong)/鈦(tai)材(cai)等(deng)(deng)、發熱(re)(re)(re)(re)(re)絲（鎳鉻鉛合金）、填充物(wu)（氧化鎂，作用是導(dao)熱(re)(re)(re)(re)(re)、絕緣）、外(wai)殼(ke)（不(bu)繡鋼、碳(tan)(tan)鋼、鈦(tai)材(cai)、銅(tong)  等(deng)(deng)）、陶瓷封頭(tou)（作用：絕緣）、防(fang)爆(bao)盒組成的(de)。加熱(re)(re)(re)(re)(re)管(guan)(guan)在工(gong)作中(zhong)低(di)溫流(liu)體介質(zhi)(zhi)通過管(guan)(guan)道在壓力作用下進(jin)入(ru)其輸入(ru)口，沿著(zhu)電加熱(re)(re)(re)(re)(re)容器內部特(te)定(ding)換(huan)熱(re)(re)(re)(re)(re)流(liu)道，運(yun)用空(kong)氣(qi)(qi)電熱(re)(re)(re)(re)(re)管(guan)(guan)的(de)流(liu)體熱(re)(re)(re)(re)(re)力學(xue)原理設(she)計(ji)的(de)路徑(jing)，帶走(zou)空(kong)氣(qi)(qi)加熱(re)(re)(re)(re)(re)管(guan)(guan)中(zhong)的(de)電熱(re)(re)(re)(re)(re)元件(jian)工(gong)作中(zhong)所(suo)產生(sheng)的(de)高(gao)溫熱(re)(re)(re)(re)(re)能(neng)(neng)量，使(shi)空(kong)氣(qi)(qi)加熱(re)(re)(re)(re)(re)管(guan)(guan)被加熱(re)(re)(re)(re)(re)介質(zhi)(zhi)溫度升(sheng)高(gao)，加熱(re)(re)(re)(re)(re)管(guan)(guan)出口得(de)到工(gong)藝要求的(de)高(gao)溫介質(zhi)(zhi)。

產(chan)品特點

1.升(sheng)溫(wen)時間(jian)在(zai)試驗電壓下，元件從環(huan)境溫(wen)度(du)升(sheng)至試驗溫(wen)度(du)時間(jian)應不(bu)大(da)于15min

2.額(e)定(ding)(ding)功(gong)率偏(pian)差(cha)在(zai)充(chong)分(fen)發熱的(de)條件(jian)下(xia)，元(yuan)件(jian)的(de)額(e)定(ding)(ding)功(gong)率的(de)偏(pian)差(cha)應(ying)不超過下(xia)列規定(ding)(ding)的(de)范圍;對額(e)定(ding)(ding)功(gong)率小于等(deng)于100W的(de)元(yuan)件(jian)為:士(shi)10%。對額(e)定(ding)(ding)功(gong)率大于100W的(de)元(yuan)件(jian)為+5%~- 10%或10W,取兩者(zhe)中的(de)較大值。

3.泄露(lu)電(dian)(dian)(dian)流冷(leng)態(tai)(tai)泄露(lu)電(dian)(dian)(dian)流以(yi)及水壓和密(mi)封試(shi)驗(yan)(yan)后泄露(lu)電(dian)(dian)(dian)流應(ying)不超(chao)過0.5mA工作(zuo)溫(wen)度(du)下的(de)熱態(tai)(tai)泄露(lu)電(dian)(dian)(dian)流應(ying)不超(chao)過公式中(zhong)的(de)計算值，但不超(chao)過5mA I=1/6 (tTX0.00001) I一 熱態(tai)(tai)泄露(lu)電(dian)(dian)(dian)流mA t-發(fa)熱長度(du)mm T-工作(zuo)溫(wen)度(du)C多個元(yuan)(yuan)件串(chuan)聯(lian)到電(dian)(dian)(dian)源中(zhong)時(shi)，應(ying)以(yi)這一組元(yuan)(yuan)件為 整體進行泄露(lu)電(dian)(dian)(dian)流試(shi)驗(yan)(yan)。

4. 絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻(zu)(zu)出廠檢驗時(shi)冷態絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)小(xiao)于50MQ密封試驗后，長期(qi)存放或者使用(yong)后的絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)消(xiao)與MQ工作(zuo)溫(wen)度下的熱態絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)低(di)于公(gong)式中(zhong)的計算值，但應不(bu)小(xiao)于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻(zu)(zu)MQ t一-發 熱長度mmT一工作(zuo)溫(wen)度°C

5.絕緣耐(nai)壓強度元件(jian)應在(zai)規定的(de)試驗(yan)條件(jian)和試驗(yan)電壓下(xia)保持1min,而無閃絡和擊穿現象

6.經(jing)受通斷電的能力元件(jian)應能在規定(ding)的試(shi)驗條件(jian)下經(jing)歷2000次通斷電試(shi)驗，而(er)不發生損壞