防爆加(jia)熱(re)(re)(re)(re)(re)管是(shi)一種消耗電(dian)(dian)能轉換(huan)為熱(re)(re)(re)(re)(re)能,來對需加(jia)熱(re)(re)(re)(re)(re)物料(liao)進(jin)行加(jia)熱(re)(re)(re)(re)(re)。防爆加(jia)熱(re)(re)(re)(re)(re)管是(shi)由外到(dao)里外殼(ke)(ke)(不(bu)繡(xiu)鋼/碳鋼/銅(tong)(tong)/鈦(tai)材等(deng)、發熱(re)(re)(re)(re)(re)絲(鎳(nie)鉻鉛合金(jin))、填充物(氧(yang)化鎂,作(zuo)用是(shi)導熱(re)(re)(re)(re)(re)、絕緣(yuan))、外殼(ke)(ke)(不(bu)繡(xiu)鋼、碳鋼、鈦(tai)材、銅(tong)(tong) 等(deng))、陶(tao)瓷封頭(tou)(作(zuo)用:絕緣(yuan))、防爆盒(he)組成的。加(jia)熱(re)(re)(re)(re)(re)管在工作(zuo)中(zhong)低溫(wen)(wen)流體介質通(tong)過管道在壓力作(zuo)用下進(jin)入其輸入口,沿著電(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)容器內部特(te)定換(huan)熱(re)(re)(re)(re)(re)流道,運用空氣(qi)電(dian)(dian)熱(re)(re)(re)(re)(re)管的流體熱(re)(re)(re)(re)(re)力學原理設計的路徑,帶走空氣(qi)加(jia)熱(re)(re)(re)(re)(re)管中(zhong)的電(dian)(dian)熱(re)(re)(re)(re)(re)元件工作(zuo)中(zhong)所產(chan)生的高(gao)溫(wen)(wen)熱(re)(re)(re)(re)(re)能量(liang),使空氣(qi)加(jia)熱(re)(re)(re)(re)(re)管被加(jia)熱(re)(re)(re)(re)(re)介質溫(wen)(wen)度升高(gao),加(jia)熱(re)(re)(re)(re)(re)管出口得到(dao)工藝要求的高(gao)溫(wen)(wen)介質。
產(chan)品特點
1.升(sheng)溫時(shi)間在試(shi)驗電壓下,元件從環境溫度(du)升(sheng)至(zhi)試(shi)驗溫度(du)時(shi)間應不大于15min
2.額(e)定(ding)功(gong)(gong)率(lv)(lv)偏差在(zai)充分發熱的(de)條(tiao)件(jian)下(xia),元件(jian)的(de)額(e)定(ding)功(gong)(gong)率(lv)(lv)的(de)偏差應不超過下(xia)列規(gui)定(ding)的(de)范圍(wei);對(dui)額(e)定(ding)功(gong)(gong)率(lv)(lv)小于(yu)等于(yu)100W的(de)元件(jian)為:士10%。對(dui)額(e)定(ding)功(gong)(gong)率(lv)(lv)大于(yu)100W的(de)元件(jian)為+5%~- 10%或10W,取兩(liang)者中(zhong)的(de)較大值。
3.泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)冷態泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)以(yi)及水壓和密(mi)封試(shi)驗后泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)應不超過0.5mA工(gong)作(zuo)(zuo)溫度(du)下的熱(re)態泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)應不超過公式中的計(ji)算值(zhi),但不超過5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)mA t-發熱(re)長度(du)mm T-工(gong)作(zuo)(zuo)溫度(du)C多個元件串聯到(dao)電(dian)(dian)(dian)源(yuan)中時,應以(yi)這一(yi)組元件為 整體(ti)進行(xing)泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)試(shi)驗。
4. 絕(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)出廠(chang)檢(jian)驗(yan)時(shi)冷態絕(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應(ying)不小于50MQ密封試驗(yan)后,長(chang)期存(cun)放或者使用后的絕(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應(ying)不消與MQ工作溫度下的熱(re)態絕(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)應(ying)不低于公式中的計算值,但應(ying)不小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)MQ t一-發(fa) 熱(re)長(chang)度mmT一工作溫度°C
5.絕(jue)緣耐壓(ya)強度(du)元件(jian)(jian)應在(zai)規定的(de)試(shi)(shi)驗條件(jian)(jian)和試(shi)(shi)驗電(dian)壓(ya)下保(bao)持1min,而(er)無閃絡和擊穿現象
6.經受通(tong)斷電(dian)的(de)能力(li)元(yuan)件應能在規定的(de)試驗條(tiao)件下經歷2000次通(tong)斷電(dian)試驗,而不發生(sheng)損壞