防爆(bao)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)管(guan)是(shi)一種消耗電能轉換為熱(re)(re)(re)(re)(re)(re)(re)能，來對(dui)需加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)物料(liao)進行加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)。防爆(bao)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)管(guan)是(shi)由外到里外殼（不繡鋼/碳鋼/銅(tong)/鈦材(cai)等(deng)(deng)、發熱(re)(re)(re)(re)(re)(re)(re)絲(si)（鎳鉻(ge)鉛合金）、填充物（氧化鎂，作(zuo)用(yong)是(shi)導熱(re)(re)(re)(re)(re)(re)(re)、絕緣）、外殼（不繡鋼、碳鋼、鈦材(cai)、銅(tong)  等(deng)(deng)）、陶瓷封頭（作(zuo)用(yong)：絕緣）、防爆(bao)盒(he)組成的。加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)管(guan)在工作(zuo)中(zhong)(zhong)低溫(wen)(wen)流體介質通(tong)過管(guan)道在壓力作(zuo)用(yong)下進入其輸(shu)入口(kou)，沿著(zhu)電加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)容器內(nei)部(bu)特定換熱(re)(re)(re)(re)(re)(re)(re)流道，運(yun)用(yong)空氣(qi)電熱(re)(re)(re)(re)(re)(re)(re)管(guan)的流體熱(re)(re)(re)(re)(re)(re)(re)力學原理設計的路徑，帶走空氣(qi)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)管(guan)中(zhong)(zhong)的電熱(re)(re)(re)(re)(re)(re)(re)元件(jian)工作(zuo)中(zhong)(zhong)所產生的高(gao)溫(wen)(wen)熱(re)(re)(re)(re)(re)(re)(re)能量，使空氣(qi)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)管(guan)被加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)介質溫(wen)(wen)度升高(gao)，加(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)管(guan)出口(kou)得到工藝要(yao)求的高(gao)溫(wen)(wen)介質。

產(chan)品特點(dian)

1.升溫(wen)時間在(zai)試驗(yan)電壓下，元件從(cong)環境溫(wen)度升至試驗(yan)溫(wen)度時間應不(bu)大于15min

2.額(e)(e)定(ding)功(gong)率偏差(cha)在充分發(fa)熱的(de)條件(jian)下(xia)(xia)，元(yuan)(yuan)件(jian)的(de)額(e)(e)定(ding)功(gong)率的(de)偏差(cha)應不(bu)超過下(xia)(xia)列(lie)規定(ding)的(de)范(fan)圍;對額(e)(e)定(ding)功(gong)率小于(yu)等(deng)于(yu)100W的(de)元(yuan)(yuan)件(jian)為:士(shi)10%。對額(e)(e)定(ding)功(gong)率大于(yu)100W的(de)元(yuan)(yuan)件(jian)為+5%~- 10%或10W,取兩者中的(de)較(jiao)大值。

3.泄(xie)露(lu)電(dian)(dian)(dian)流冷(leng)態(tai)泄(xie)露(lu)電(dian)(dian)(dian)流以及(ji)水壓和密封(feng)試驗(yan)(yan)后泄(xie)露(lu)電(dian)(dian)(dian)流應不超(chao)(chao)過0.5mA工(gong)作(zuo)溫(wen)度(du)下的(de)熱(re)態(tai)泄(xie)露(lu)電(dian)(dian)(dian)流應不超(chao)(chao)過公式中的(de)計算值，但不超(chao)(chao)過5mA I=1/6 (tTX0.00001) I一 熱(re)態(tai)泄(xie)露(lu)電(dian)(dian)(dian)流mA t-發熱(re)長(chang)度(du)mm T-工(gong)作(zuo)溫(wen)度(du)C多個元件串聯到電(dian)(dian)(dian)源中時(shi)，應以這一組(zu)元件為 整體進(jin)行泄(xie)露(lu)電(dian)(dian)(dian)流試驗(yan)(yan)。

4. 絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻出廠檢(jian)驗時冷態絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻應(ying)不小(xiao)于(yu)50MQ密封試驗后，長(chang)期(qi)存放(fang)或(huo)者使(shi)用后的(de)絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻應(ying)不消與(yu)MQ工(gong)作(zuo)溫度(du)下的(de)熱態絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻應(ying)不低于(yu)公式中的(de)計算值，但應(ying)不小(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻MQ t一(yi)-發(fa) 熱長(chang)度(du)mmT一(yi)工(gong)作(zuo)溫度(du)°C

5.絕緣耐壓強度(du)元件應在(zai)規定的試(shi)驗(yan)條件和(he)試(shi)驗(yan)電壓下(xia)保(bao)持1min,而無閃絡和(he)擊穿現象

6.經受通(tong)斷電的能力元件應(ying)能在規(gui)定(ding)的試(shi)驗條(tiao)件下(xia)經歷(li)2000次通(tong)斷電試(shi)驗，而不發生損壞