防爆加(jia)熱(re)(re)(re)(re)(re)管(guan)是(shi)一種消耗電(dian)能轉換為熱(re)(re)(re)(re)(re)能,來對(dui)需(xu)加(jia)熱(re)(re)(re)(re)(re)物料進行加(jia)熱(re)(re)(re)(re)(re)。防爆加(jia)熱(re)(re)(re)(re)(re)管(guan)是(shi)由外到里外殼(ke)(不(bu)繡鋼(gang)(gang)/碳鋼(gang)(gang)/銅/鈦(tai)材等(deng)、發熱(re)(re)(re)(re)(re)絲(鎳鉻鉛(qian)合金(jin))、填(tian)充(chong)物(氧化鎂(mei),作(zuo)(zuo)(zuo)用(yong)(yong)是(shi)導熱(re)(re)(re)(re)(re)、絕(jue)緣)、外殼(ke)(不(bu)繡鋼(gang)(gang)、碳鋼(gang)(gang)、鈦(tai)材、銅 等(deng))、陶(tao)瓷封(feng)頭(作(zuo)(zuo)(zuo)用(yong)(yong):絕(jue)緣)、防爆盒組成的(de)。加(jia)熱(re)(re)(re)(re)(re)管(guan)在工(gong)(gong)作(zuo)(zuo)(zuo)中低溫流(liu)體介(jie)(jie)質(zhi)(zhi)通過(guo)管(guan)道在壓力作(zuo)(zuo)(zuo)用(yong)(yong)下進入其輸入口,沿著(zhu)電(dian)加(jia)熱(re)(re)(re)(re)(re)容器(qi)內(nei)部特定換熱(re)(re)(re)(re)(re)流(liu)道,運用(yong)(yong)空氣電(dian)熱(re)(re)(re)(re)(re)管(guan)的(de)流(liu)體熱(re)(re)(re)(re)(re)力學原理(li)設計(ji)的(de)路徑,帶走空氣加(jia)熱(re)(re)(re)(re)(re)管(guan)中的(de)電(dian)熱(re)(re)(re)(re)(re)元件(jian)工(gong)(gong)作(zuo)(zuo)(zuo)中所產生的(de)高溫熱(re)(re)(re)(re)(re)能量,使空氣加(jia)熱(re)(re)(re)(re)(re)管(guan)被加(jia)熱(re)(re)(re)(re)(re)介(jie)(jie)質(zhi)(zhi)溫度升(sheng)高,加(jia)熱(re)(re)(re)(re)(re)管(guan)出口得到工(gong)(gong)藝要求的(de)高溫介(jie)(jie)質(zhi)(zhi)。
產品特點(dian)
1.升溫(wen)時間在試(shi)驗電壓下(xia),元件(jian)從(cong)環境溫(wen)度升至試(shi)驗溫(wen)度時間應不大于15min
2.額(e)定(ding)功(gong)率偏(pian)差在充分發熱的(de)(de)(de)條(tiao)件(jian)下(xia),元(yuan)件(jian)的(de)(de)(de)額(e)定(ding)功(gong)率的(de)(de)(de)偏(pian)差應(ying)不超過下(xia)列規定(ding)的(de)(de)(de)范圍;對(dui)額(e)定(ding)功(gong)率小于(yu)等于(yu)100W的(de)(de)(de)元(yuan)件(jian)為(wei):士10%。對(dui)額(e)定(ding)功(gong)率大于(yu)100W的(de)(de)(de)元(yuan)件(jian)為(wei)+5%~- 10%或10W,取兩者中(zhong)的(de)(de)(de)較大值。
3.泄露(lu)電(dian)(dian)(dian)流(liu)冷態泄露(lu)電(dian)(dian)(dian)流(liu)以(yi)及(ji)水壓(ya)和密封(feng)試(shi)驗后泄露(lu)電(dian)(dian)(dian)流(liu)應(ying)不超(chao)過(guo)0.5mA工(gong)作溫(wen)度(du)下的熱(re)態泄露(lu)電(dian)(dian)(dian)流(liu)應(ying)不超(chao)過(guo)公式(shi)中的計算值,但(dan)不超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態泄露(lu)電(dian)(dian)(dian)流(liu)mA t-發熱(re)長度(du)mm T-工(gong)作溫(wen)度(du)C多個元(yuan)件串聯(lian)到電(dian)(dian)(dian)源中時,應(ying)以(yi)這一(yi)組元(yuan)件為(wei) 整體進行泄露(lu)電(dian)(dian)(dian)流(liu)試(shi)驗。
4. 絕緣(yuan)電(dian)阻(zu)出(chu)廠檢驗時冷態絕緣(yuan)電(dian)阻(zu)應不(bu)小于50MQ密封試(shi)驗后(hou),長(chang)期存放(fang)或者使(shi)用(yong)后(hou)的絕緣(yuan)電(dian)阻(zu)應不(bu)消與MQ工作溫度下的熱(re)態絕緣(yuan)電(dian)阻(zu)應不(bu)低(di)于公(gong)式中的計(ji)算值,但(dan)應不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕緣(yuan)電(dian)阻(zu)MQ t一-發 熱(re)長(chang)度mmT一工作溫度°C
5.絕緣耐(nai)壓(ya)強(qiang)度元件應(ying)在規定的試驗(yan)條(tiao)件和試驗(yan)電壓(ya)下保持1min,而無閃絡和擊穿現象
6.經受通(tong)斷(duan)(duan)電(dian)的能力元(yuan)件應能在規定的試(shi)(shi)驗條件下經歷2000次通(tong)斷(duan)(duan)電(dian)試(shi)(shi)驗,而不發生損壞