防(fang)爆(bao)加(jia)(jia)熱(re)(re)(re)(re)管是一種消耗(hao)電(dian)能轉換為(wei)熱(re)(re)(re)(re)能,來對(dui)需(xu)加(jia)(jia)熱(re)(re)(re)(re)物料(liao)進(jin)行加(jia)(jia)熱(re)(re)(re)(re)。防(fang)爆(bao)加(jia)(jia)熱(re)(re)(re)(re)管是由外到(dao)里外殼(不繡鋼/碳鋼/銅(tong)/鈦材(cai)等、發(fa)熱(re)(re)(re)(re)絲(鎳鉻鉛合金)、填充物(氧(yang)化鎂,作(zuo)用(yong)(yong)是導熱(re)(re)(re)(re)、絕(jue)緣(yuan))、外殼(不繡鋼、碳鋼、鈦材(cai)、銅(tong) 等)、陶瓷封頭(tou)(作(zuo)用(yong)(yong):絕(jue)緣(yuan))、防(fang)爆(bao)盒組成的。加(jia)(jia)熱(re)(re)(re)(re)管在工(gong)(gong)作(zuo)中低(di)溫(wen)流體介質(zhi)通過管道在壓力作(zuo)用(yong)(yong)下進(jin)入其(qi)輸入口(kou),沿著電(dian)加(jia)(jia)熱(re)(re)(re)(re)容器內部特(te)定換熱(re)(re)(re)(re)流道,運用(yong)(yong)空(kong)氣電(dian)熱(re)(re)(re)(re)管的流體熱(re)(re)(re)(re)力學原理設計的路徑(jing),帶走空(kong)氣加(jia)(jia)熱(re)(re)(re)(re)管中的電(dian)熱(re)(re)(re)(re)元(yuan)件(jian)工(gong)(gong)作(zuo)中所產生(sheng)的高(gao)(gao)溫(wen)熱(re)(re)(re)(re)能量,使空(kong)氣加(jia)(jia)熱(re)(re)(re)(re)管被加(jia)(jia)熱(re)(re)(re)(re)介質(zhi)溫(wen)度(du)升(sheng)高(gao)(gao),加(jia)(jia)熱(re)(re)(re)(re)管出口(kou)得(de)到(dao)工(gong)(gong)藝要求(qiu)的高(gao)(gao)溫(wen)介質(zhi)。
產品特點
1.升(sheng)溫(wen)(wen)時間在試驗(yan)電(dian)壓下,元件從環(huan)境溫(wen)(wen)度(du)升(sheng)至(zhi)試驗(yan)溫(wen)(wen)度(du)時間應不大于(yu)15min
2.額定功率偏(pian)差在充分發熱的(de)(de)條件下,元件的(de)(de)額定功率的(de)(de)偏(pian)差應不(bu)超過下列(lie)規定的(de)(de)范圍;對(dui)額定功率小于(yu)等于(yu)100W的(de)(de)元件為(wei)(wei):士(shi)10%。對(dui)額定功率大(da)于(yu)100W的(de)(de)元件為(wei)(wei)+5%~- 10%或10W,取(qu)兩(liang)者中的(de)(de)較(jiao)大(da)值。
3.泄(xie)(xie)露(lu)(lu)電(dian)(dian)流(liu)(liu)冷態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)流(liu)(liu)以及(ji)水壓和密(mi)封試驗(yan)后泄(xie)(xie)露(lu)(lu)電(dian)(dian)流(liu)(liu)應不(bu)(bu)超(chao)過0.5mA工(gong)作溫度(du)(du)下(xia)的熱態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)流(liu)(liu)應不(bu)(bu)超(chao)過公式中的計算值,但不(bu)(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)流(liu)(liu)mA t-發(fa)熱長度(du)(du)mm T-工(gong)作溫度(du)(du)C多個元件(jian)串(chuan)聯到電(dian)(dian)源(yuan)中時,應以這一組元件(jian)為 整體進行泄(xie)(xie)露(lu)(lu)電(dian)(dian)流(liu)(liu)試驗(yan)。
4. 絕緣電(dian)阻出廠檢(jian)驗時(shi)冷(leng)態(tai)絕緣電(dian)阻應(ying)不小于(yu)50MQ密封試(shi)驗后,長期存放或(huo)者(zhe)使用(yong)后的(de)絕緣電(dian)阻應(ying)不消(xiao)與MQ工作(zuo)溫度(du)下(xia)的(de)熱態(tai)絕緣電(dian)阻應(ying)不低(di)于(yu)公式中(zhong)的(de)計算值,但應(ying)不小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕緣電(dian)阻MQ t一(yi)-發 熱長度(du)mmT一(yi)工作(zuo)溫度(du)°C
5.絕緣(yuan)耐壓強(qiang)度元(yuan)件(jian)(jian)應(ying)在規定(ding)的(de)試驗(yan)條(tiao)件(jian)(jian)和試驗(yan)電壓下保持1min,而無閃(shan)絡和擊(ji)穿現象
6.經受通斷電的能(neng)力元(yuan)件(jian)應能(neng)在規定的試(shi)驗條件(jian)下經歷2000次通斷電試(shi)驗,而不(bu)發生損(sun)壞