防(fang)爆(bao)加(jia)(jia)熱(re)(re)(re)管(guan)是一種(zhong)消耗電(dian)能轉換為(wei)熱(re)(re)(re)能,來對需加(jia)(jia)熱(re)(re)(re)物料(liao)進行加(jia)(jia)熱(re)(re)(re)。防(fang)爆(bao)加(jia)(jia)熱(re)(re)(re)管(guan)是由外(wai)到里外(wai)殼(不(bu)繡(xiu)鋼/碳鋼/銅(tong)(tong)/鈦(tai)材(cai)等(deng)、發(fa)熱(re)(re)(re)絲(鎳鉻(ge)鉛合金)、填(tian)充物(氧化鎂,作(zuo)用(yong)是導熱(re)(re)(re)、絕(jue)緣)、外(wai)殼(不(bu)繡(xiu)鋼、碳鋼、鈦(tai)材(cai)、銅(tong)(tong) 等(deng))、陶瓷封(feng)頭(tou)(作(zuo)用(yong):絕(jue)緣)、防(fang)爆(bao)盒組(zu)成(cheng)的(de)。加(jia)(jia)熱(re)(re)(re)管(guan)在工(gong)作(zuo)中(zhong)(zhong)低溫(wen)流(liu)體(ti)介質通過管(guan)道在壓力(li)作(zuo)用(yong)下(xia)進入(ru)其輸入(ru)口,沿著電(dian)加(jia)(jia)熱(re)(re)(re)容器內部(bu)特定換熱(re)(re)(re)流(liu)道,運用(yong)空(kong)氣電(dian)熱(re)(re)(re)管(guan)的(de)流(liu)體(ti)熱(re)(re)(re)力(li)學原理設計的(de)路(lu)徑(jing),帶(dai)走空(kong)氣加(jia)(jia)熱(re)(re)(re)管(guan)中(zhong)(zhong)的(de)電(dian)熱(re)(re)(re)元件(jian)工(gong)作(zuo)中(zhong)(zhong)所產(chan)生的(de)高溫(wen)熱(re)(re)(re)能量,使空(kong)氣加(jia)(jia)熱(re)(re)(re)管(guan)被加(jia)(jia)熱(re)(re)(re)介質溫(wen)度升高,加(jia)(jia)熱(re)(re)(re)管(guan)出口得到工(gong)藝要求(qiu)的(de)高溫(wen)介質。
產品特(te)點
1.升(sheng)溫時(shi)間(jian)在試(shi)驗(yan)電(dian)壓下,元件(jian)從環境(jing)溫度(du)升(sheng)至試(shi)驗(yan)溫度(du)時(shi)間(jian)應不大于15min
2.額(e)定(ding)功率(lv)偏差在充分(fen)發熱的條件(jian)下(xia),元件(jian)的額(e)定(ding)功率(lv)的偏差應不超(chao)過下(xia)列(lie)規定(ding)的范圍(wei);對額(e)定(ding)功率(lv)小于(yu)等(deng)于(yu)100W的元件(jian)為:士10%。對額(e)定(ding)功率(lv)大于(yu)100W的元件(jian)為+5%~- 10%或10W,取兩者中的較大值。
3.泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)冷態泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)以及水壓和密封試驗后(hou)泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)應(ying)不超過0.5mA工作(zuo)溫(wen)度(du)下的熱態泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)應(ying)不超過公式中的計算值,但(dan)不超過5mA I=1/6 (tTX0.00001) I一(yi) 熱態泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)mA t-發(fa)熱長(chang)度(du)mm T-工作(zuo)溫(wen)度(du)C多個元(yuan)件(jian)串(chuan)聯到電(dian)(dian)(dian)源中時(shi),應(ying)以這(zhe)一(yi)組元(yuan)件(jian)為 整體進(jin)行泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)試驗。
4. 絕緣電(dian)阻(zu)(zu)出廠(chang)檢驗(yan)時冷態(tai)(tai)絕緣電(dian)阻(zu)(zu)應不(bu)小于(yu)50MQ密封試驗(yan)后,長(chang)期存放或(huo)者使用后的絕緣電(dian)阻(zu)(zu)應不(bu)消與MQ工作溫度下的熱態(tai)(tai)絕緣電(dian)阻(zu)(zu)應不(bu)低于(yu)公(gong)式(shi)中的計(ji)算值,但應不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)(tai)絕緣電(dian)阻(zu)(zu)MQ t一-發(fa) 熱長(chang)度mmT一工作溫度°C
5.絕(jue)緣耐(nai)壓強度元件(jian)應在規定的試(shi)驗條(tiao)件(jian)和(he)(he)試(shi)驗電壓下保(bao)持1min,而無閃絡和(he)(he)擊穿現(xian)象(xiang)
6.經受通斷電的能力元件(jian)應能在規(gui)定的試驗(yan)條件(jian)下(xia)經歷2000次通斷電試驗(yan),而不發(fa)生損壞