防爆加(jia)(jia)熱(re)(re)(re)(re)管(guan)是(shi)一種消耗電(dian)能(neng)轉換為熱(re)(re)(re)(re)能(neng),來對需加(jia)(jia)熱(re)(re)(re)(re)物(wu)料(liao)進行加(jia)(jia)熱(re)(re)(re)(re)。防爆加(jia)(jia)熱(re)(re)(re)(re)管(guan)是(shi)由外(wai)到里外(wai)殼(不(bu)繡鋼(gang)(gang)/碳鋼(gang)(gang)/銅/鈦材(cai)等、發熱(re)(re)(re)(re)絲(鎳(nie)鉻鉛合金)、填(tian)充物(wu)(氧化鎂(mei),作(zuo)(zuo)用是(shi)導熱(re)(re)(re)(re)、絕(jue)緣)、外(wai)殼(不(bu)繡鋼(gang)(gang)、碳鋼(gang)(gang)、鈦材(cai)、銅 等)、陶瓷封頭(作(zuo)(zuo)用:絕(jue)緣)、防爆盒組成的(de)(de)。加(jia)(jia)熱(re)(re)(re)(re)管(guan)在(zai)工作(zuo)(zuo)中(zhong)(zhong)低溫(wen)(wen)流(liu)體介質通(tong)過管(guan)道在(zai)壓力作(zuo)(zuo)用下進入其輸入口,沿著(zhu)電(dian)加(jia)(jia)熱(re)(re)(re)(re)容器內部特(te)定換熱(re)(re)(re)(re)流(liu)道,運用空(kong)氣(qi)電(dian)熱(re)(re)(re)(re)管(guan)的(de)(de)流(liu)體熱(re)(re)(re)(re)力學原理(li)設計的(de)(de)路徑,帶走空(kong)氣(qi)加(jia)(jia)熱(re)(re)(re)(re)管(guan)中(zhong)(zhong)的(de)(de)電(dian)熱(re)(re)(re)(re)元件工作(zuo)(zuo)中(zhong)(zhong)所產生(sheng)的(de)(de)高(gao)(gao)溫(wen)(wen)熱(re)(re)(re)(re)能(neng)量,使空(kong)氣(qi)加(jia)(jia)熱(re)(re)(re)(re)管(guan)被加(jia)(jia)熱(re)(re)(re)(re)介質溫(wen)(wen)度(du)升高(gao)(gao),加(jia)(jia)熱(re)(re)(re)(re)管(guan)出口得到工藝要求的(de)(de)高(gao)(gao)溫(wen)(wen)介質。
產品特點
1.升(sheng)(sheng)溫(wen)時(shi)間在(zai)試驗電壓下,元件(jian)從環境(jing)溫(wen)度升(sheng)(sheng)至試驗溫(wen)度時(shi)間應不大于15min
2.額定(ding)(ding)功(gong)率偏差在充分發熱(re)的(de)條件下,元(yuan)件的(de)額定(ding)(ding)功(gong)率的(de)偏差應不超過下列(lie)規定(ding)(ding)的(de)范(fan)圍;對額定(ding)(ding)功(gong)率小于等于100W的(de)元(yuan)件為:士10%。對額定(ding)(ding)功(gong)率大于100W的(de)元(yuan)件為+5%~- 10%或10W,取兩者(zhe)中的(de)較大值。
3.泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)冷(leng)態泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)以及水壓和(he)密封試(shi)驗后泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)應(ying)不超(chao)過0.5mA工作溫度下(xia)的熱態泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)應(ying)不超(chao)過公式中的計算(suan)值(zhi),但不超(chao)過5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)mA t-發熱長度mm T-工作溫度C多個元件(jian)串聯到(dao)電(dian)(dian)(dian)源中時,應(ying)以這(zhe)一組元件(jian)為 整體進(jin)行泄(xie)(xie)露(lu)電(dian)(dian)(dian)流(liu)(liu)試(shi)驗。
4. 絕緣(yuan)電(dian)(dian)阻出廠檢驗時冷態(tai)絕緣(yuan)電(dian)(dian)阻應(ying)不(bu)(bu)小于50MQ密封試(shi)驗后,長期存(cun)放或(huo)者(zhe)使用后的(de)絕緣(yuan)電(dian)(dian)阻應(ying)不(bu)(bu)消(xiao)與(yu)MQ工(gong)作溫度下(xia)的(de)熱態(tai)絕緣(yuan)電(dian)(dian)阻應(ying)不(bu)(bu)低(di)于公(gong)式中(zhong)的(de)計算(suan)值,但應(ying)不(bu)(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕緣(yuan)電(dian)(dian)阻MQ t一-發(fa) 熱長度mmT一工(gong)作溫度°C
5.絕(jue)緣耐壓強度元件(jian)應在規(gui)定的試驗條(tiao)件(jian)和試驗電壓下保持1min,而無(wu)閃(shan)絡和擊穿現象
6.經(jing)受(shou)通斷電(dian)的能(neng)力元件(jian)應能(neng)在規定的試驗條件(jian)下經(jing)歷2000次通斷電(dian)試驗,而不(bu)發生損壞