防爆加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)是(shi)一種消耗電(dian)能(neng)轉換為熱(re)(re)(re)(re)(re)(re)能(neng),來(lai)對需加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)物(wu)料進(jin)行加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)。防爆加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)是(shi)由外到(dao)里(li)外殼(不(bu)(bu)繡(xiu)(xiu)鋼(gang)/碳(tan)鋼(gang)/銅/鈦材等、發熱(re)(re)(re)(re)(re)(re)絲(鎳鉻鉛合金)、填充物(wu)(氧化鎂,作(zuo)(zuo)用(yong)是(shi)導熱(re)(re)(re)(re)(re)(re)、絕緣)、外殼(不(bu)(bu)繡(xiu)(xiu)鋼(gang)、碳(tan)鋼(gang)、鈦材、銅 等)、陶瓷封頭(作(zuo)(zuo)用(yong):絕緣)、防爆盒組成的(de)(de)。加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)在工(gong)作(zuo)(zuo)中(zhong)低溫(wen)流(liu)體介質通(tong)過管(guan)(guan)(guan)道在壓力(li)作(zuo)(zuo)用(yong)下進(jin)入其(qi)輸入口(kou),沿著電(dian)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)容器內部特(te)定換熱(re)(re)(re)(re)(re)(re)流(liu)道,運(yun)用(yong)空氣電(dian)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)的(de)(de)流(liu)體熱(re)(re)(re)(re)(re)(re)力(li)學原理設計的(de)(de)路徑,帶(dai)走空氣加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)中(zhong)的(de)(de)電(dian)熱(re)(re)(re)(re)(re)(re)元(yuan)件(jian)工(gong)作(zuo)(zuo)中(zhong)所(suo)產生(sheng)的(de)(de)高(gao)溫(wen)熱(re)(re)(re)(re)(re)(re)能(neng)量,使空氣加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)被加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)介質溫(wen)度(du)升(sheng)高(gao),加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)出口(kou)得到(dao)工(gong)藝要求的(de)(de)高(gao)溫(wen)介質。
產(chan)品特點(dian)
1.升(sheng)溫時間(jian)在試(shi)(shi)驗電壓(ya)下,元件從環境溫度(du)升(sheng)至試(shi)(shi)驗溫度(du)時間(jian)應不大于(yu)15min
2.額定功率(lv)偏(pian)差在充分(fen)發熱的條(tiao)件(jian)下,元(yuan)件(jian)的額定功率(lv)的偏(pian)差應不超過下列規定的范圍(wei);對(dui)額定功率(lv)小于等(deng)于100W的元(yuan)件(jian)為:士10%。對(dui)額定功率(lv)大于100W的元(yuan)件(jian)為+5%~- 10%或10W,取兩者中(zhong)的較大值。
3.泄露電(dian)流(liu)(liu)(liu)冷態(tai)泄露電(dian)流(liu)(liu)(liu)以及水(shui)壓和密(mi)封試驗后泄露電(dian)流(liu)(liu)(liu)應(ying)不(bu)超過0.5mA工作溫(wen)度下的熱(re)態(tai)泄露電(dian)流(liu)(liu)(liu)應(ying)不(bu)超過公式中的計算值,但(dan)不(bu)超過5mA I=1/6 (tTX0.00001) I一 熱(re)態(tai)泄露電(dian)流(liu)(liu)(liu)mA t-發熱(re)長度mm T-工作溫(wen)度C多個(ge)元件串(chuan)聯到(dao)電(dian)源中時,應(ying)以這一組(zu)元件為 整體進(jin)行泄露電(dian)流(liu)(liu)(liu)試驗。
4. 絕(jue)緣電(dian)(dian)阻(zu)(zu)出廠檢驗(yan)時冷態絕(jue)緣電(dian)(dian)阻(zu)(zu)應(ying)(ying)不(bu)小于(yu)50MQ密封試驗(yan)后,長期存放或者使(shi)用后的絕(jue)緣電(dian)(dian)阻(zu)(zu)應(ying)(ying)不(bu)消與MQ工(gong)(gong)作溫度(du)(du)下的熱態絕(jue)緣電(dian)(dian)阻(zu)(zu)應(ying)(ying)不(bu)低于(yu)公式中的計算值,但應(ying)(ying)不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)緣電(dian)(dian)阻(zu)(zu)MQ t一-發 熱長度(du)(du)mmT一工(gong)(gong)作溫度(du)(du)°C
5.絕緣耐(nai)壓(ya)(ya)強度元件應在規定的(de)試驗條件和試驗電(dian)壓(ya)(ya)下保(bao)持1min,而無閃(shan)絡和擊穿(chuan)現象
6.經(jing)受通斷電的(de)能力元件應能在規(gui)定的(de)試驗條件下經(jing)歷2000次通斷電試驗,而不發生損壞