防爆(bao)加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)是一(yi)種(zhong)消耗電能轉換為(wei)熱(re)(re)(re)(re)(re)能，來對需加(jia)熱(re)(re)(re)(re)(re)物料進行加(jia)熱(re)(re)(re)(re)(re)。防爆(bao)加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)是由(you)外(wai)到里外(wai)殼(ke)（不(bu)繡(xiu)(xiu)鋼/碳鋼/銅/鈦材(cai)等(deng)、發熱(re)(re)(re)(re)(re)絲（鎳(nie)鉻鉛合金）、填充物（氧化(hua)鎂，作(zuo)(zuo)用(yong)是導熱(re)(re)(re)(re)(re)、絕(jue)緣）、外(wai)殼(ke)（不(bu)繡(xiu)(xiu)鋼、碳鋼、鈦材(cai)、銅  等(deng)）、陶瓷封頭（作(zuo)(zuo)用(yong)：絕(jue)緣）、防爆(bao)盒組成的。加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)在工作(zuo)(zuo)中低(di)溫流(liu)體介(jie)質通過管(guan)(guan)(guan)道在壓力作(zuo)(zuo)用(yong)下進入其輸(shu)入口，沿(yan)著電加(jia)熱(re)(re)(re)(re)(re)容器內(nei)部特定換熱(re)(re)(re)(re)(re)流(liu)道，運(yun)用(yong)空(kong)氣(qi)電熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)的流(liu)體熱(re)(re)(re)(re)(re)力學原(yuan)理設(she)計的路徑，帶走(zou)空(kong)氣(qi)加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)中的電熱(re)(re)(re)(re)(re)元件工作(zuo)(zuo)中所產生的高溫熱(re)(re)(re)(re)(re)能量，使空(kong)氣(qi)加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)被(bei)加(jia)熱(re)(re)(re)(re)(re)介(jie)質溫度升高，加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)出口得到工藝要求(qiu)的高溫介(jie)質。

產品特點

1.升(sheng)溫時間(jian)在試驗(yan)電(dian)壓(ya)下(xia)，元件從環境(jing)溫度升(sheng)至試驗(yan)溫度時間(jian)應不大于15min

2.額(e)定(ding)(ding)功(gong)率(lv)偏差(cha)在(zai)充(chong)分發熱的條(tiao)件下(xia)，元件的額(e)定(ding)(ding)功(gong)率(lv)的偏差(cha)應(ying)不超(chao)過下(xia)列(lie)規(gui)定(ding)(ding)的范圍;對額(e)定(ding)(ding)功(gong)率(lv)小(xiao)于(yu)等(deng)于(yu)100W的元件為:士10%。對額(e)定(ding)(ding)功(gong)率(lv)大(da)(da)于(yu)100W的元件為+5%~- 10%或10W,取兩(liang)者中的較大(da)(da)值。

3.泄(xie)(xie)露電(dian)(dian)流(liu)冷態泄(xie)(xie)露電(dian)(dian)流(liu)以(yi)及(ji)水壓和密封試驗后泄(xie)(xie)露電(dian)(dian)流(liu)應(ying)不超過0.5mA工作(zuo)溫(wen)(wen)度下的(de)熱態泄(xie)(xie)露電(dian)(dian)流(liu)應(ying)不超過公式中(zhong)的(de)計算(suan)值，但不超過5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)(xie)露電(dian)(dian)流(liu)mA t-發熱長度mm T-工作(zuo)溫(wen)(wen)度C多個(ge)元件(jian)(jian)串聯(lian)到電(dian)(dian)源中(zhong)時，應(ying)以(yi)這一組元件(jian)(jian)為(wei) 整體進行泄(xie)(xie)露電(dian)(dian)流(liu)試驗。

4. 絕(jue)緣(yuan)電(dian)(dian)(dian)阻出廠檢(jian)驗時(shi)冷態(tai)絕(jue)緣(yuan)電(dian)(dian)(dian)阻應不(bu)小于(yu)(yu)50MQ密封試驗后(hou)，長期存放或者(zhe)使(shi)用后(hou)的絕(jue)緣(yuan)電(dian)(dian)(dian)阻應不(bu)消與MQ工(gong)作(zuo)溫度(du)下(xia)的熱(re)態(tai)絕(jue)緣(yuan)電(dian)(dian)(dian)阻應不(bu)低于(yu)(yu)公式中(zhong)的計算(suan)值(zhi)，但應不(bu)小于(yu)(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕(jue)緣(yuan)電(dian)(dian)(dian)阻MQ t一-發 熱(re)長度(du)mmT一工(gong)作(zuo)溫度(du)°C

5.絕(jue)緣耐壓強度(du)元件應在(zai)規定的試驗條件和試驗電(dian)壓下保(bao)持(chi)1min,而(er)無(wu)閃絡和擊穿現(xian)象

6.經(jing)受通(tong)斷(duan)電(dian)的(de)能(neng)力元件應能(neng)在規定的(de)試驗條件下(xia)經(jing)歷2000次通(tong)斷(duan)電(dian)試驗，而不發生損壞