防爆(bao)加(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)是一種消耗電(dian)能(neng)轉換為熱(re)(re)(re)能(neng)，來對需(xu)加(jia)(jia)熱(re)(re)(re)物料(liao)進(jin)(jin)行加(jia)(jia)熱(re)(re)(re)。防爆(bao)加(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)是由外(wai)到里外(wai)殼（不繡鋼/碳鋼/銅/鈦材(cai)等(deng)、發熱(re)(re)(re)絲(si)（鎳(nie)鉻鉛合金）、填充(chong)物（氧化鎂，作(zuo)用是導熱(re)(re)(re)、絕緣）、外(wai)殼（不繡鋼、碳鋼、鈦材(cai)、銅  等(deng)）、陶瓷封頭（作(zuo)用：絕緣）、防爆(bao)盒組成(cheng)的(de)(de)。加(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)在(zai)工作(zuo)中低(di)溫流(liu)體介質(zhi)通過管(guan)(guan)(guan)道在(zai)壓力作(zuo)用下進(jin)(jin)入其(qi)輸入口，沿著電(dian)加(jia)(jia)熱(re)(re)(re)容器(qi)內(nei)部特定換熱(re)(re)(re)流(liu)道，運用空(kong)氣電(dian)熱(re)(re)(re)管(guan)(guan)(guan)的(de)(de)流(liu)體熱(re)(re)(re)力學原理設計的(de)(de)路徑，帶(dai)走空(kong)氣加(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)中的(de)(de)電(dian)熱(re)(re)(re)元(yuan)件工作(zuo)中所產生的(de)(de)高溫熱(re)(re)(re)能(neng)量，使空(kong)氣加(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)被加(jia)(jia)熱(re)(re)(re)介質(zhi)溫度升(sheng)高，加(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)出口得到工藝要求(qiu)的(de)(de)高溫介質(zhi)。

產品特(te)點(dian)

1.升(sheng)溫(wen)時(shi)間在試驗電壓下，元件從環境溫(wen)度升(sheng)至試驗溫(wen)度時(shi)間應不大于15min

2.額(e)定(ding)功(gong)率偏差在充分發熱的(de)(de)條件(jian)下，元件(jian)的(de)(de)額(e)定(ding)功(gong)率的(de)(de)偏差應不超(chao)過下列規定(ding)的(de)(de)范(fan)圍(wei);對(dui)額(e)定(ding)功(gong)率小于(yu)等于(yu)100W的(de)(de)元件(jian)為(wei):士10%。對(dui)額(e)定(ding)功(gong)率大于(yu)100W的(de)(de)元件(jian)為(wei)+5%~- 10%或10W,取兩者中的(de)(de)較大值。

3.泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)冷(leng)態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)以及水壓和密封試驗后泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)應不超(chao)(chao)過(guo)0.5mA工作溫度下(xia)的熱態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)應不超(chao)(chao)過(guo)公(gong)式中(zhong)的計算值，但不超(chao)(chao)過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)mA t-發熱長(chang)度mm T-工作溫度C多個元件串聯到電(dian)(dian)(dian)(dian)源中(zhong)時，應以這一(yi)組元件為(wei) 整體進行泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)試驗。

4. 絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)出廠(chang)檢驗(yan)時冷態絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)應(ying)不(bu)小(xiao)于50MQ密封試驗(yan)后(hou)(hou)，長(chang)期存放或(huo)者使用后(hou)(hou)的絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)應(ying)不(bu)消與MQ工作溫度(du)(du)下的熱(re)(re)態絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)應(ying)不(bu)低(di)于公(gong)式中的計算值，但(dan)應(ying)不(bu)小(xiao)于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)MQ t一(yi)-發 熱(re)(re)長(chang)度(du)(du)mmT一(yi)工作溫度(du)(du)°C

5.絕緣耐壓強(qiang)度元(yuan)件應在規(gui)定(ding)的試驗(yan)條(tiao)件和試驗(yan)電壓下保持1min,而無閃絡和擊穿現象(xiang)

6.經受通斷(duan)(duan)電的能力元件(jian)(jian)應能在規定的試驗條件(jian)(jian)下經歷2000次通斷(duan)(duan)電試驗，而不發生損(sun)壞