防(fang)爆(bao)(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)是一種(zhong)消(xiao)耗電(dian)能轉換為熱(re)(re)(re)(re)(re)能,來對需加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)物(wu)料(liao)進(jin)行加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)。防(fang)爆(bao)(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)是由(you)外(wai)(wai)到(dao)里(li)外(wai)(wai)殼(ke)(不繡(xiu)鋼(gang)/碳鋼(gang)/銅/鈦(tai)材(cai)等(deng)(deng)、發熱(re)(re)(re)(re)(re)絲(鎳鉻鉛合金)、填(tian)充物(wu)(氧化鎂,作(zuo)用(yong)是導熱(re)(re)(re)(re)(re)、絕緣(yuan))、外(wai)(wai)殼(ke)(不繡(xiu)鋼(gang)、碳鋼(gang)、鈦(tai)材(cai)、銅 等(deng)(deng))、陶瓷封頭(作(zuo)用(yong):絕緣(yuan))、防(fang)爆(bao)(bao)盒組成的。加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)在(zai)工作(zuo)中(zhong)低溫(wen)流(liu)體(ti)(ti)介質(zhi)通過管(guan)道在(zai)壓力(li)作(zuo)用(yong)下進(jin)入其輸入口,沿(yan)著電(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)容器內部特定換熱(re)(re)(re)(re)(re)流(liu)道,運用(yong)空氣(qi)電(dian)熱(re)(re)(re)(re)(re)管(guan)的流(liu)體(ti)(ti)熱(re)(re)(re)(re)(re)力(li)學原理設計的路徑(jing),帶走空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)中(zhong)的電(dian)熱(re)(re)(re)(re)(re)元件工作(zuo)中(zhong)所產生(sheng)的高溫(wen)熱(re)(re)(re)(re)(re)能量,使(shi)空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)被加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)介質(zhi)溫(wen)度升高,加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)出口得到(dao)工藝要求的高溫(wen)介質(zhi)。
產品特(te)點
1.升溫時間(jian)在試(shi)驗(yan)電壓下,元件從環境(jing)溫度升至(zhi)試(shi)驗(yan)溫度時間(jian)應不(bu)大于15min
2.額定(ding)功(gong)率(lv)(lv)偏(pian)差在充分發熱的(de)條件(jian)下,元(yuan)(yuan)件(jian)的(de)額定(ding)功(gong)率(lv)(lv)的(de)偏(pian)差應不超過下列規定(ding)的(de)范圍;對額定(ding)功(gong)率(lv)(lv)小于(yu)等于(yu)100W的(de)元(yuan)(yuan)件(jian)為:士10%。對額定(ding)功(gong)率(lv)(lv)大(da)(da)于(yu)100W的(de)元(yuan)(yuan)件(jian)為+5%~- 10%或(huo)10W,取兩者中(zhong)的(de)較大(da)(da)值(zhi)。
3.泄(xie)(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)冷態(tai)泄(xie)(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)以(yi)及水壓和密(mi)封試驗后(hou)泄(xie)(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)應(ying)不(bu)(bu)超(chao)(chao)過(guo)0.5mA工作溫度下的(de)熱態(tai)泄(xie)(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)應(ying)不(bu)(bu)超(chao)(chao)過(guo)公式中的(de)計算值,但不(bu)(bu)超(chao)(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄(xie)(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)mA t-發(fa)熱長度mm T-工作溫度C多個元(yuan)件串聯到電(dian)(dian)(dian)源(yuan)中時,應(ying)以(yi)這一組(zu)元(yuan)件為 整(zheng)體(ti)進(jin)行泄(xie)(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)試驗。
4. 絕緣(yuan)電(dian)阻(zu)出廠檢驗(yan)(yan)時冷(leng)態(tai)(tai)絕緣(yuan)電(dian)阻(zu)應不(bu)小于(yu)50MQ密(mi)封試驗(yan)(yan)后,長(chang)期存放或者使用后的絕緣(yuan)電(dian)阻(zu)應不(bu)消與MQ工作(zuo)溫(wen)度下的熱(re)態(tai)(tai)絕緣(yuan)電(dian)阻(zu)應不(bu)低于(yu)公式中的計算(suan)值(zhi),但(dan)應不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)(tai)絕緣(yuan)電(dian)阻(zu)MQ t一-發 熱(re)長(chang)度mmT一工作(zuo)溫(wen)度°C
5.絕緣耐(nai)壓(ya)(ya)強度元件應在規定的試驗條(tiao)件和試驗電壓(ya)(ya)下保持1min,而無閃絡和擊(ji)穿(chuan)現(xian)象
6.經(jing)受通斷(duan)電的能力(li)元件(jian)應能在規定的試驗條(tiao)件(jian)下經(jing)歷2000次通斷(duan)電試驗,而不發生損(sun)壞