防爆(bao)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管是(shi)一種消耗電(dian)能(neng)轉換(huan)為(wei)熱(re)(re)(re)(re)(re)能(neng),來對需加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)物料(liao)進行加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)。防爆(bao)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管是(shi)由(you)外到(dao)里外殼(ke)(不繡鋼/碳鋼/銅/鈦材等、發熱(re)(re)(re)(re)(re)絲(鎳鉻鉛合金)、填(tian)充(chong)物(氧(yang)化鎂,作(zuo)用(yong)是(shi)導熱(re)(re)(re)(re)(re)、絕(jue)緣)、外殼(ke)(不繡鋼、碳鋼、鈦材、銅 等)、陶瓷封頭(tou)(作(zuo)用(yong):絕(jue)緣)、防爆(bao)盒(he)組成的。加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管在工作(zuo)中低溫流(liu)(liu)體(ti)介質通(tong)過管道(dao)在壓力作(zuo)用(yong)下進入(ru)其輸入(ru)口,沿著電(dian)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)容器內部特定換(huan)熱(re)(re)(re)(re)(re)流(liu)(liu)道(dao),運用(yong)空(kong)氣電(dian)熱(re)(re)(re)(re)(re)管的流(liu)(liu)體(ti)熱(re)(re)(re)(re)(re)力學(xue)原(yuan)理設計的路(lu)徑,帶走空(kong)氣加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管中的電(dian)熱(re)(re)(re)(re)(re)元件(jian)工作(zuo)中所產生的高(gao)溫熱(re)(re)(re)(re)(re)能(neng)量,使空(kong)氣加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管被加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)介質溫度升高(gao),加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管出口得到(dao)工藝(yi)要求的高(gao)溫介質。
產(chan)品(pin)特點
1.升溫時間(jian)在試驗(yan)電壓下,元件從環境(jing)溫度(du)(du)升至試驗(yan)溫度(du)(du)時間(jian)應(ying)不(bu)大于15min
2.額定(ding)(ding)功(gong)率(lv)偏差(cha)在充分發熱的條件下,元件的額定(ding)(ding)功(gong)率(lv)的偏差(cha)應(ying)不超過下列規定(ding)(ding)的范圍;對額定(ding)(ding)功(gong)率(lv)小(xiao)于等(deng)于100W的元件為(wei):士10%。對額定(ding)(ding)功(gong)率(lv)大(da)于100W的元件為(wei)+5%~- 10%或10W,取兩者中(zhong)的較大(da)值。
3.泄露(lu)(lu)電(dian)(dian)流(liu)(liu)冷態泄露(lu)(lu)電(dian)(dian)流(liu)(liu)以(yi)及水壓(ya)和密封試(shi)驗(yan)后泄露(lu)(lu)電(dian)(dian)流(liu)(liu)應(ying)不(bu)超過0.5mA工作(zuo)溫度(du)下的(de)熱態泄露(lu)(lu)電(dian)(dian)流(liu)(liu)應(ying)不(bu)超過公式中的(de)計算值,但不(bu)超過5mA I=1/6 (tTX0.00001) I一 熱態泄露(lu)(lu)電(dian)(dian)流(liu)(liu)mA t-發熱長度(du)mm T-工作(zuo)溫度(du)C多個元件(jian)串聯(lian)到(dao)電(dian)(dian)源中時(shi),應(ying)以(yi)這一組元件(jian)為 整體進行(xing)泄露(lu)(lu)電(dian)(dian)流(liu)(liu)試(shi)驗(yan)。
4. 絕緣(yuan)(yuan)電(dian)(dian)(dian)阻出廠檢驗時(shi)冷態絕緣(yuan)(yuan)電(dian)(dian)(dian)阻應(ying)不(bu)(bu)小(xiao)(xiao)于(yu)(yu)50MQ密封試驗后,長(chang)期存放或者使用后的(de)絕緣(yuan)(yuan)電(dian)(dian)(dian)阻應(ying)不(bu)(bu)消與MQ工(gong)作(zuo)溫(wen)度下的(de)熱(re)態絕緣(yuan)(yuan)電(dian)(dian)(dian)阻應(ying)不(bu)(bu)低于(yu)(yu)公式中(zhong)的(de)計(ji)算值,但應(ying)不(bu)(bu)小(xiao)(xiao)于(yu)(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕緣(yuan)(yuan)電(dian)(dian)(dian)阻MQ t一(yi)-發 熱(re)長(chang)度mmT一(yi)工(gong)作(zuo)溫(wen)度°C
5.絕緣耐壓強度元件應在(zai)規定的試(shi)(shi)驗(yan)條件和(he)試(shi)(shi)驗(yan)電壓下保持1min,而無閃絡和(he)擊穿現象
6.經受通斷電的能(neng)力元件應能(neng)在規定的試(shi)(shi)驗條件下經歷2000次通斷電試(shi)(shi)驗,而(er)不發生損壞