防(fang)(fang)爆加(jia)熱(re)(re)(re)(re)管(guan)(guan)是一種消耗電(dian)(dian)能轉換(huan)為熱(re)(re)(re)(re)能,來(lai)對需加(jia)熱(re)(re)(re)(re)物料進(jin)(jin)行加(jia)熱(re)(re)(re)(re)。防(fang)(fang)爆加(jia)熱(re)(re)(re)(re)管(guan)(guan)是由外到里(li)外殼(ke)(不繡(xiu)鋼/碳鋼/銅(tong)(tong)/鈦(tai)材等、發熱(re)(re)(re)(re)絲(si)(鎳鉻(ge)鉛合金)、填(tian)充物(氧化鎂,作(zuo)用是導熱(re)(re)(re)(re)、絕緣)、外殼(ke)(不繡(xiu)鋼、碳鋼、鈦(tai)材、銅(tong)(tong) 等)、陶瓷封頭(tou)(作(zuo)用:絕緣)、防(fang)(fang)爆盒組(zu)成的。加(jia)熱(re)(re)(re)(re)管(guan)(guan)在(zai)工作(zuo)中(zhong)低溫(wen)流(liu)體介(jie)質通過(guo)管(guan)(guan)道(dao)在(zai)壓力作(zuo)用下進(jin)(jin)入其輸入口(kou),沿著電(dian)(dian)加(jia)熱(re)(re)(re)(re)容器內(nei)部特定換(huan)熱(re)(re)(re)(re)流(liu)道(dao),運(yun)用空(kong)(kong)(kong)氣電(dian)(dian)熱(re)(re)(re)(re)管(guan)(guan)的流(liu)體熱(re)(re)(re)(re)力學原理設計(ji)的路徑,帶走空(kong)(kong)(kong)氣加(jia)熱(re)(re)(re)(re)管(guan)(guan)中(zhong)的電(dian)(dian)熱(re)(re)(re)(re)元(yuan)件工作(zuo)中(zhong)所(suo)產生的高溫(wen)熱(re)(re)(re)(re)能量,使空(kong)(kong)(kong)氣加(jia)熱(re)(re)(re)(re)管(guan)(guan)被加(jia)熱(re)(re)(re)(re)介(jie)質溫(wen)度升高,加(jia)熱(re)(re)(re)(re)管(guan)(guan)出(chu)口(kou)得到工藝要求的高溫(wen)介(jie)質。
產品(pin)特點
1.升溫時間(jian)(jian)在試(shi)驗電(dian)壓(ya)下(xia),元件從(cong)環境(jing)溫度升至(zhi)試(shi)驗溫度時間(jian)(jian)應不大于15min
2.額(e)定(ding)功率(lv)偏差在(zai)充(chong)分發(fa)熱的(de)條件(jian)(jian)下(xia),元件(jian)(jian)的(de)額(e)定(ding)功率(lv)的(de)偏差應不超過下(xia)列規定(ding)的(de)范圍;對額(e)定(ding)功率(lv)小于等(deng)于100W的(de)元件(jian)(jian)為(wei):士10%。對額(e)定(ding)功率(lv)大于100W的(de)元件(jian)(jian)為(wei)+5%~- 10%或10W,取(qu)兩者中的(de)較大值。
3.泄(xie)(xie)(xie)露電(dian)(dian)流冷態泄(xie)(xie)(xie)露電(dian)(dian)流以及水(shui)壓(ya)和密封試驗后泄(xie)(xie)(xie)露電(dian)(dian)流應(ying)不(bu)(bu)超(chao)過0.5mA工作溫度下的熱(re)(re)態泄(xie)(xie)(xie)露電(dian)(dian)流應(ying)不(bu)(bu)超(chao)過公式(shi)中的計算值,但不(bu)(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一 熱(re)(re)態泄(xie)(xie)(xie)露電(dian)(dian)流mA t-發熱(re)(re)長(chang)度mm T-工作溫度C多個元(yuan)件(jian)串聯(lian)到電(dian)(dian)源中時,應(ying)以這一組元(yuan)件(jian)為 整體進行泄(xie)(xie)(xie)露電(dian)(dian)流試驗。
4. 絕緣(yuan)電(dian)(dian)阻出廠檢驗時冷態(tai)絕緣(yuan)電(dian)(dian)阻應不小于(yu)50MQ密封試(shi)驗后(hou)(hou),長(chang)期(qi)存放或者(zhe)使用后(hou)(hou)的絕緣(yuan)電(dian)(dian)阻應不消與MQ工(gong)作溫度(du)(du)下的熱態(tai)絕緣(yuan)電(dian)(dian)阻應不低于(yu)公式中的計算(suan)值,但應不小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕緣(yuan)電(dian)(dian)阻MQ t一(yi)-發 熱長(chang)度(du)(du)mmT一(yi)工(gong)作溫度(du)(du)°C
5.絕緣(yuan)耐壓強度元件應(ying)在規定的(de)試(shi)驗條件和試(shi)驗電(dian)壓下(xia)保(bao)持1min,而無閃絡和擊穿現(xian)象(xiang)
6.經受通斷(duan)電的能力元件(jian)應能在規定(ding)的試驗條件(jian)下經歷2000次通斷(duan)電試驗,而不(bu)發生損壞