防爆加(jia)(jia)(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)是一種消耗電能(neng)轉換(huan)為熱(re)能(neng)，來對需(xu)加(jia)(jia)(jia)(jia)熱(re)物料進(jin)行加(jia)(jia)(jia)(jia)熱(re)。防爆加(jia)(jia)(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)是由外(wai)到(dao)里外(wai)殼（不繡(xiu)鋼(gang)(gang)/碳鋼(gang)(gang)/銅(tong)(tong)/鈦材等、發熱(re)絲（鎳鉻鉛合(he)金）、填充物（氧化(hua)鎂，作(zuo)用(yong)是導熱(re)、絕(jue)(jue)緣）、外(wai)殼（不繡(xiu)鋼(gang)(gang)、碳鋼(gang)(gang)、鈦材、銅(tong)(tong)  等）、陶(tao)瓷封頭（作(zuo)用(yong)：絕(jue)(jue)緣）、防爆盒組成的。加(jia)(jia)(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)在工(gong)作(zuo)中(zhong)(zhong)低溫(wen)(wen)流(liu)體介(jie)質通過管(guan)(guan)(guan)(guan)道在壓(ya)力作(zuo)用(yong)下(xia)進(jin)入其輸入口(kou)，沿著電加(jia)(jia)(jia)(jia)熱(re)容器內部特定換(huan)熱(re)流(liu)道，運用(yong)空(kong)氣(qi)電熱(re)管(guan)(guan)(guan)(guan)的流(liu)體熱(re)力學原理設計的路徑，帶走空(kong)氣(qi)加(jia)(jia)(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)中(zhong)(zhong)的電熱(re)元件工(gong)作(zuo)中(zhong)(zhong)所(suo)產生的高(gao)溫(wen)(wen)熱(re)能(neng)量，使空(kong)氣(qi)加(jia)(jia)(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)被(bei)加(jia)(jia)(jia)(jia)熱(re)介(jie)質溫(wen)(wen)度升(sheng)高(gao)，加(jia)(jia)(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)出(chu)口(kou)得到(dao)工(gong)藝要求的高(gao)溫(wen)(wen)介(jie)質。

產品特(te)點

1.升溫(wen)時間在試驗電壓下(xia)，元件從環境溫(wen)度升至(zhi)試驗溫(wen)度時間應不大于15min

2.額(e)(e)定功率(lv)(lv)偏(pian)(pian)差(cha)(cha)在充分發熱的條件(jian)(jian)下，元件(jian)(jian)的額(e)(e)定功率(lv)(lv)的偏(pian)(pian)差(cha)(cha)應(ying)不超過下列規(gui)定的范圍;對(dui)額(e)(e)定功率(lv)(lv)小(xiao)于等(deng)于100W的元件(jian)(jian)為:士10%。對(dui)額(e)(e)定功率(lv)(lv)大于100W的元件(jian)(jian)為+5%~- 10%或10W,取(qu)兩者中的較大值。

3.泄(xie)露電(dian)(dian)(dian)(dian)流冷態泄(xie)露電(dian)(dian)(dian)(dian)流以及(ji)水(shui)壓和密封(feng)試驗后泄(xie)露電(dian)(dian)(dian)(dian)流應(ying)不超過(guo)0.5mA工(gong)作溫度下的熱(re)態泄(xie)露電(dian)(dian)(dian)(dian)流應(ying)不超過(guo)公(gong)式(shi)中的計算(suan)值(zhi)，但不超過(guo)5mA I=1/6 (tTX0.00001) I一(yi)(yi) 熱(re)態泄(xie)露電(dian)(dian)(dian)(dian)流mA t-發熱(re)長度mm T-工(gong)作溫度C多個元(yuan)件(jian)串聯(lian)到電(dian)(dian)(dian)(dian)源中時，應(ying)以這一(yi)(yi)組(zu)元(yuan)件(jian)為 整體進(jin)行泄(xie)露電(dian)(dian)(dian)(dian)流試驗。

4. 絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)出廠檢驗時冷態絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應不小于50MQ密封試(shi)驗后，長期(qi)存放或者使(shi)用后的絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應不消(xiao)與(yu)MQ工作(zuo)溫(wen)(wen)度(du)下的熱(re)(re)態絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應不低于公式中的計算值，但應不小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態絕(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)MQ t一(yi)-發 熱(re)(re)長度(du)mmT一(yi)工作(zuo)溫(wen)(wen)度(du)°C

5.絕緣耐壓(ya)強度元(yuan)件應在規定的(de)試驗(yan)條件和(he)試驗(yan)電(dian)壓(ya)下(xia)保持1min,而無(wu)閃絡和(he)擊穿現象

6.經(jing)受(shou)通斷電的能力(li)元件應能在規定(ding)的試(shi)(shi)驗(yan)條(tiao)件下(xia)經(jing)歷2000次通斷電試(shi)(shi)驗(yan)，而不(bu)發生損壞