防(fang)爆加(jia)熱(re)(re)(re)(re)(re)(re)管是(shi)一(yi)種(zhong)消(xiao)耗電(dian)能轉換為熱(re)(re)(re)(re)(re)(re)能,來對需加(jia)熱(re)(re)(re)(re)(re)(re)物料進行加(jia)熱(re)(re)(re)(re)(re)(re)。防(fang)爆加(jia)熱(re)(re)(re)(re)(re)(re)管是(shi)由外(wai)到里外(wai)殼(不繡(xiu)鋼/碳鋼/銅(tong)/鈦(tai)(tai)材等(deng)、發(fa)熱(re)(re)(re)(re)(re)(re)絲(鎳鉻鉛合金(jin))、填充物(氧(yang)化鎂,作用(yong)是(shi)導熱(re)(re)(re)(re)(re)(re)、絕(jue)緣)、外(wai)殼(不繡(xiu)鋼、碳鋼、鈦(tai)(tai)材、銅(tong) 等(deng))、陶(tao)瓷封頭(tou)(作用(yong):絕(jue)緣)、防(fang)爆盒(he)組(zu)成的(de)。加(jia)熱(re)(re)(re)(re)(re)(re)管在工作中低溫(wen)流體介質(zhi)通(tong)過管道在壓力(li)作用(yong)下進入其輸入口,沿著電(dian)加(jia)熱(re)(re)(re)(re)(re)(re)容(rong)器內部特(te)定(ding)換熱(re)(re)(re)(re)(re)(re)流道,運用(yong)空(kong)(kong)氣電(dian)熱(re)(re)(re)(re)(re)(re)管的(de)流體熱(re)(re)(re)(re)(re)(re)力(li)學原理(li)設(she)計的(de)路徑,帶走空(kong)(kong)氣加(jia)熱(re)(re)(re)(re)(re)(re)管中的(de)電(dian)熱(re)(re)(re)(re)(re)(re)元件工作中所產(chan)生的(de)高(gao)溫(wen)熱(re)(re)(re)(re)(re)(re)能量,使空(kong)(kong)氣加(jia)熱(re)(re)(re)(re)(re)(re)管被加(jia)熱(re)(re)(re)(re)(re)(re)介質(zhi)溫(wen)度升高(gao),加(jia)熱(re)(re)(re)(re)(re)(re)管出口得到工藝要求(qiu)的(de)高(gao)溫(wen)介質(zhi)。
產品特(te)點
1.升(sheng)(sheng)溫(wen)時間在試(shi)驗電(dian)壓(ya)下,元(yuan)件從環境溫(wen)度升(sheng)(sheng)至(zhi)試(shi)驗溫(wen)度時間應不(bu)大于15min
2.額(e)定(ding)功(gong)率(lv)偏差在充分發(fa)熱的(de)條件下(xia),元(yuan)件的(de)額(e)定(ding)功(gong)率(lv)的(de)偏差應不(bu)超過下(xia)列規定(ding)的(de)范圍;對(dui)額(e)定(ding)功(gong)率(lv)小于等于100W的(de)元(yuan)件為:士10%。對(dui)額(e)定(ding)功(gong)率(lv)大(da)于100W的(de)元(yuan)件為+5%~- 10%或10W,取兩者(zhe)中的(de)較大(da)值(zhi)。
3.泄露(lu)電(dian)(dian)(dian)流(liu)冷態(tai)泄露(lu)電(dian)(dian)(dian)流(liu)以及水(shui)壓(ya)和密封(feng)試(shi)驗(yan)后泄露(lu)電(dian)(dian)(dian)流(liu)應(ying)不(bu)超(chao)(chao)過(guo)0.5mA工作溫度下的熱態(tai)泄露(lu)電(dian)(dian)(dian)流(liu)應(ying)不(bu)超(chao)(chao)過(guo)公式(shi)中(zhong)的計算值,但不(bu)超(chao)(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄露(lu)電(dian)(dian)(dian)流(liu)mA t-發熱長度mm T-工作溫度C多個元件(jian)串(chuan)聯到(dao)電(dian)(dian)(dian)源(yuan)中(zhong)時(shi),應(ying)以這(zhe)一組(zu)元件(jian)為(wei) 整(zheng)體進行泄露(lu)電(dian)(dian)(dian)流(liu)試(shi)驗(yan)。
4. 絕緣(yuan)電(dian)(dian)阻(zu)出廠檢驗(yan)時冷態(tai)絕緣(yuan)電(dian)(dian)阻(zu)應(ying)不小于(yu)50MQ密(mi)封試驗(yan)后,長期存放(fang)或者使用后的絕緣(yuan)電(dian)(dian)阻(zu)應(ying)不消與MQ工(gong)作溫度(du)下的熱態(tai)絕緣(yuan)電(dian)(dian)阻(zu)應(ying)不低于(yu)公(gong)式中的計算(suan)值,但應(ying)不小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕緣(yuan)電(dian)(dian)阻(zu)MQ t一-發 熱長度(du)mmT一工(gong)作溫度(du)°C
5.絕緣耐壓強度元件(jian)(jian)應在規定的試驗條(tiao)件(jian)(jian)和試驗電壓下保(bao)持1min,而無閃(shan)絡和擊穿現象
6.經受(shou)通斷電(dian)的能力(li)元件應能在規定的試(shi)驗條件下經歷2000次通斷電(dian)試(shi)驗,而不發(fa)生損壞