防爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是(shi)(shi)一種消耗電能(neng)(neng)轉(zhuan)換(huan)為熱(re)(re)(re)(re)能(neng)(neng)，來對需加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)料進行加(jia)(jia)(jia)熱(re)(re)(re)(re)。防爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是(shi)(shi)由外到(dao)里外殼（不(bu)繡鋼/碳(tan)(tan)鋼/銅(tong)/鈦材等、發熱(re)(re)(re)(re)絲（鎳鉻鉛(qian)合金(jin)）、填充物(wu)（氧化鎂，作用是(shi)(shi)導熱(re)(re)(re)(re)、絕緣）、外殼（不(bu)繡鋼、碳(tan)(tan)鋼、鈦材、銅(tong)  等）、陶瓷封(feng)頭(tou)（作用：絕緣）、防爆盒組(zu)成(cheng)的(de)。加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)在(zai)工作中(zhong)(zhong)低(di)溫(wen)(wen)流(liu)體介質(zhi)通過管(guan)(guan)道在(zai)壓力作用下進入其輸入口，沿著電加(jia)(jia)(jia)熱(re)(re)(re)(re)容器內(nei)部特定換(huan)熱(re)(re)(re)(re)流(liu)道，運用空(kong)氣(qi)電熱(re)(re)(re)(re)管(guan)(guan)的(de)流(liu)體熱(re)(re)(re)(re)力學原理設計的(de)路徑，帶走(zou)空(kong)氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)中(zhong)(zhong)的(de)電熱(re)(re)(re)(re)元件工作中(zhong)(zhong)所產(chan)生的(de)高(gao)溫(wen)(wen)熱(re)(re)(re)(re)能(neng)(neng)量，使空(kong)氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)被加(jia)(jia)(jia)熱(re)(re)(re)(re)介質(zhi)溫(wen)(wen)度升高(gao)，加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)出口得到(dao)工藝要求的(de)高(gao)溫(wen)(wen)介質(zhi)。

產品特點(dian)

1.升溫(wen)時(shi)(shi)間(jian)在試驗電壓下(xia)，元件從環境溫(wen)度升至試驗溫(wen)度時(shi)(shi)間(jian)應不(bu)大于15min

2.額(e)定(ding)功率(lv)偏(pian)(pian)差(cha)在(zai)充(chong)分發(fa)熱的條(tiao)件(jian)下，元(yuan)(yuan)件(jian)的額(e)定(ding)功率(lv)的偏(pian)(pian)差(cha)應不超過下列規定(ding)的范圍(wei);對額(e)定(ding)功率(lv)小(xiao)于等于100W的元(yuan)(yuan)件(jian)為(wei):士10%。對額(e)定(ding)功率(lv)大于100W的元(yuan)(yuan)件(jian)為(wei)+5%~- 10%或(huo)10W,取兩者中的較(jiao)大值。

3.泄(xie)(xie)露(lu)電(dian)流冷態泄(xie)(xie)露(lu)電(dian)流以及(ji)水壓和密封試驗后泄(xie)(xie)露(lu)電(dian)流應不(bu)超過0.5mA工(gong)作(zuo)溫度(du)下的(de)熱態泄(xie)(xie)露(lu)電(dian)流應不(bu)超過公(gong)式中的(de)計(ji)算值(zhi)，但不(bu)超過5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)(xie)露(lu)電(dian)流mA t-發熱長度(du)mm T-工(gong)作(zuo)溫度(du)C多(duo)個元(yuan)(yuan)件串聯到電(dian)源中時，應以這一組(zu)元(yuan)(yuan)件為 整體進行(xing)泄(xie)(xie)露(lu)電(dian)流試驗。

4. 絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)出(chu)廠檢(jian)驗時(shi)冷(leng)態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)小(xiao)于(yu)50MQ密封試驗后(hou)，長期存放或者使用后(hou)的(de)絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)消與MQ工(gong)作溫度下(xia)的(de)熱(re)態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)低于(yu)公(gong)式(shi)中的(de)計(ji)算值，但(dan)應不(bu)小(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)MQ t一-發 熱(re)長度mmT一工(gong)作溫度°C

5.絕緣耐壓強度元件(jian)應在規定的試(shi)驗(yan)條件(jian)和試(shi)驗(yan)電壓下(xia)保持1min,而無閃(shan)絡和擊穿現象

6.經受通斷(duan)電(dian)的能力(li)元(yuan)件應(ying)能在(zai)規定的試(shi)(shi)驗條件下經歷2000次通斷(duan)電(dian)試(shi)(shi)驗，而不(bu)發生損壞