防爆(bao)加(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)是一種消(xiao)耗電能轉換為熱(re)能，來對需加(jia)(jia)熱(re)物料進(jin)行加(jia)(jia)熱(re)。防爆(bao)加(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)是由外(wai)到里外(wai)殼（不繡鋼/碳(tan)鋼/銅(tong)/鈦(tai)材等(deng)、發熱(re)絲(si)（鎳鉻鉛合金）、填充物（氧化(hua)鎂，作(zuo)用(yong)(yong)是導熱(re)、絕(jue)緣）、外(wai)殼（不繡鋼、碳(tan)鋼、鈦(tai)材、銅(tong)  等(deng)）、陶瓷封頭(tou)（作(zuo)用(yong)(yong)：絕(jue)緣）、防爆(bao)盒組成(cheng)的(de)(de)。加(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)在工(gong)作(zuo)中低溫(wen)流體介(jie)(jie)(jie)質通過(guo)管(guan)(guan)(guan)(guan)道(dao)在壓力作(zuo)用(yong)(yong)下進(jin)入(ru)其(qi)輸(shu)入(ru)口，沿著電加(jia)(jia)熱(re)容(rong)器內(nei)部特(te)定(ding)換熱(re)流道(dao)，運用(yong)(yong)空(kong)氣(qi)電熱(re)管(guan)(guan)(guan)(guan)的(de)(de)流體熱(re)力學原理設計的(de)(de)路(lu)徑，帶(dai)走空(kong)氣(qi)加(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)中的(de)(de)電熱(re)元件工(gong)作(zuo)中所產生的(de)(de)高溫(wen)熱(re)能量，使空(kong)氣(qi)加(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)被加(jia)(jia)熱(re)介(jie)(jie)(jie)質溫(wen)度(du)升高，加(jia)(jia)熱(re)管(guan)(guan)(guan)(guan)出口得到工(gong)藝要求的(de)(de)高溫(wen)介(jie)(jie)(jie)質。

產品特點

1.升溫時(shi)間在試(shi)驗(yan)電(dian)壓下(xia)，元件從環(huan)境(jing)溫度升至試(shi)驗(yan)溫度時(shi)間應不大于15min

2.額定功(gong)(gong)率(lv)(lv)偏差在充分發熱的(de)(de)條件(jian)下，元(yuan)件(jian)的(de)(de)額定功(gong)(gong)率(lv)(lv)的(de)(de)偏差應不(bu)超(chao)過下列規定的(de)(de)范(fan)圍;對額定功(gong)(gong)率(lv)(lv)小于(yu)等于(yu)100W的(de)(de)元(yuan)件(jian)為:士10%。對額定功(gong)(gong)率(lv)(lv)大于(yu)100W的(de)(de)元(yuan)件(jian)為+5%~- 10%或10W,取兩者(zhe)中的(de)(de)較大值。

3.泄(xie)(xie)露(lu)(lu)電(dian)流(liu)(liu)冷態(tai)(tai)泄(xie)(xie)露(lu)(lu)電(dian)流(liu)(liu)以及水壓和密(mi)封試驗后泄(xie)(xie)露(lu)(lu)電(dian)流(liu)(liu)應(ying)不(bu)超(chao)過0.5mA工(gong)作溫度下的熱態(tai)(tai)泄(xie)(xie)露(lu)(lu)電(dian)流(liu)(liu)應(ying)不(bu)超(chao)過公式中的計算值，但不(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一 熱態(tai)(tai)泄(xie)(xie)露(lu)(lu)電(dian)流(liu)(liu)mA t-發熱長度mm T-工(gong)作溫度C多個元(yuan)件串聯(lian)到(dao)電(dian)源中時，應(ying)以這一組元(yuan)件為(wei) 整體(ti)進(jin)行泄(xie)(xie)露(lu)(lu)電(dian)流(liu)(liu)試驗。

4. 絕緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)出(chu)廠檢(jian)驗時(shi)冷態絕緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)應不(bu)小(xiao)于(yu)(yu)50MQ密(mi)封試(shi)驗后，長期存放(fang)或者使用后的(de)(de)絕緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)應不(bu)消與MQ工(gong)作溫度(du)下(xia)的(de)(de)熱(re)態絕緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)應不(bu)低于(yu)(yu)公(gong)式中(zhong)的(de)(de)計(ji)算值，但應不(bu)小(xiao)于(yu)(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)MQ t一-發 熱(re)長度(du)mmT一工(gong)作溫度(du)°C

5.絕緣耐壓(ya)強(qiang)度(du)元件應在規定的(de)試驗(yan)(yan)條件和試驗(yan)(yan)電(dian)壓(ya)下保持1min,而無閃絡和擊穿現象

6.經受(shou)通(tong)斷電的(de)能力元件(jian)應能在規定(ding)的(de)試驗(yan)條件(jian)下經歷(li)2000次(ci)通(tong)斷電試驗(yan)，而不(bu)發(fa)生(sheng)損(sun)壞