防(fang)(fang)爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)是一種(zhong)消耗(hao)電(dian)能(neng)轉(zhuan)換為熱(re)(re)(re)(re)能(neng)，來對需加(jia)(jia)(jia)熱(re)(re)(re)(re)物料進行加(jia)(jia)(jia)熱(re)(re)(re)(re)。防(fang)(fang)爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)是由外到里外殼（不繡鋼(gang)/碳(tan)鋼(gang)/銅(tong)/鈦(tai)(tai)材等、發熱(re)(re)(re)(re)絲（鎳鉻鉛(qian)合金）、填充物（氧化鎂，作(zuo)用(yong)(yong)是導熱(re)(re)(re)(re)、絕緣(yuan)）、外殼（不繡鋼(gang)、碳(tan)鋼(gang)、鈦(tai)(tai)材、銅(tong)  等）、陶瓷封(feng)頭（作(zuo)用(yong)(yong)：絕緣(yuan)）、防(fang)(fang)爆盒組成的(de)(de)。加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)在工(gong)作(zuo)中低溫(wen)(wen)流體(ti)(ti)介質通過管(guan)(guan)(guan)道(dao)在壓力(li)作(zuo)用(yong)(yong)下進入其(qi)輸入口(kou)，沿(yan)著(zhu)電(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)容器(qi)內部特定換熱(re)(re)(re)(re)流道(dao)，運用(yong)(yong)空(kong)氣(qi)電(dian)熱(re)(re)(re)(re)管(guan)(guan)(guan)的(de)(de)流體(ti)(ti)熱(re)(re)(re)(re)力(li)學原(yuan)理設計的(de)(de)路徑，帶走空(kong)氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)中的(de)(de)電(dian)熱(re)(re)(re)(re)元件工(gong)作(zuo)中所(suo)產生的(de)(de)高(gao)溫(wen)(wen)熱(re)(re)(re)(re)能(neng)量，使空(kong)氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)被加(jia)(jia)(jia)熱(re)(re)(re)(re)介質溫(wen)(wen)度升(sheng)高(gao)，加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)出口(kou)得(de)到工(gong)藝要求(qiu)的(de)(de)高(gao)溫(wen)(wen)介質。

產品(pin)特(te)點

1.升溫時(shi)間(jian)在試驗電壓下，元件從環(huan)境溫度升至試驗溫度時(shi)間(jian)應不大(da)于15min

2.額(e)(e)定(ding)功(gong)(gong)率偏(pian)差在(zai)充分(fen)發(fa)熱的(de)條件(jian)下，元(yuan)(yuan)件(jian)的(de)額(e)(e)定(ding)功(gong)(gong)率的(de)偏(pian)差應不超過下列規定(ding)的(de)范圍;對額(e)(e)定(ding)功(gong)(gong)率小于等(deng)于100W的(de)元(yuan)(yuan)件(jian)為:士10%。對額(e)(e)定(ding)功(gong)(gong)率大于100W的(de)元(yuan)(yuan)件(jian)為+5%~- 10%或10W,取兩者中的(de)較大值。

3.泄(xie)露電(dian)(dian)(dian)流(liu)(liu)冷態泄(xie)露電(dian)(dian)(dian)流(liu)(liu)以(yi)及水(shui)壓和密封試(shi)驗后泄(xie)露電(dian)(dian)(dian)流(liu)(liu)應(ying)不超(chao)(chao)過0.5mA工(gong)作溫度下的熱態泄(xie)露電(dian)(dian)(dian)流(liu)(liu)應(ying)不超(chao)(chao)過公式中的計算值，但不超(chao)(chao)過5mA I=1/6 (tTX0.00001) I一(yi) 熱態泄(xie)露電(dian)(dian)(dian)流(liu)(liu)mA t-發(fa)熱長度mm T-工(gong)作溫度C多個元件串聯到電(dian)(dian)(dian)源(yuan)中時，應(ying)以(yi)這(zhe)一(yi)組元件為(wei) 整(zheng)體(ti)進行泄(xie)露電(dian)(dian)(dian)流(liu)(liu)試(shi)驗。

4. 絕(jue)(jue)緣(yuan)(yuan)電阻(zu)(zu)出廠檢驗(yan)時冷態(tai)絕(jue)(jue)緣(yuan)(yuan)電阻(zu)(zu)應(ying)不(bu)小于(yu)(yu)50MQ密封(feng)試驗(yan)后，長期(qi)存放或者使用后的(de)絕(jue)(jue)緣(yuan)(yuan)電阻(zu)(zu)應(ying)不(bu)消與MQ工(gong)作溫度(du)下的(de)熱(re)態(tai)絕(jue)(jue)緣(yuan)(yuan)電阻(zu)(zu)應(ying)不(bu)低于(yu)(yu)公式中的(de)計算值，但應(ying)不(bu)小于(yu)(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕(jue)(jue)緣(yuan)(yuan)電阻(zu)(zu)MQ t一-發 熱(re)長度(du)mmT一工(gong)作溫度(du)°C

5.絕(jue)緣耐壓強度元件(jian)應(ying)在(zai)規定的試驗條件(jian)和試驗電(dian)壓下保持1min,而無閃絡和擊穿現象

6.經(jing)受通斷電的能力(li)元件應能在(zai)規定(ding)的試(shi)驗(yan)條(tiao)件下(xia)經(jing)歷(li)2000次(ci)通斷電試(shi)驗(yan)，而不發生損壞