防(fang)爆(bao)加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)是一種消耗電(dian)能(neng)轉換(huan)為熱(re)(re)(re)能(neng),來對需加(jia)(jia)(jia)熱(re)(re)(re)物(wu)料(liao)進(jin)行(xing)加(jia)(jia)(jia)熱(re)(re)(re)。防(fang)爆(bao)加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)是由外到里(li)外殼(不繡鋼(gang)/碳鋼(gang)/銅/鈦(tai)材等(deng)、發熱(re)(re)(re)絲(鎳鉻鉛合金)、填充(chong)物(wu)(氧(yang)化鎂(mei),作(zuo)用(yong)是導熱(re)(re)(re)、絕(jue)緣(yuan))、外殼(不繡鋼(gang)、碳鋼(gang)、鈦(tai)材、銅 等(deng))、陶瓷封頭(作(zuo)用(yong):絕(jue)緣(yuan))、防(fang)爆(bao)盒(he)組成(cheng)的。加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)在(zai)工(gong)作(zuo)中低溫流(liu)(liu)體介質通過管(guan)(guan)道在(zai)壓力(li)作(zuo)用(yong)下進(jin)入其(qi)輸入口(kou),沿(yan)著(zhu)電(dian)加(jia)(jia)(jia)熱(re)(re)(re)容器內部特定換(huan)熱(re)(re)(re)流(liu)(liu)道,運用(yong)空氣(qi)電(dian)熱(re)(re)(re)管(guan)(guan)的流(liu)(liu)體熱(re)(re)(re)力(li)學原理設計的路徑,帶走空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)中的電(dian)熱(re)(re)(re)元件(jian)工(gong)作(zuo)中所(suo)產生的高(gao)溫熱(re)(re)(re)能(neng)量,使空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)被(bei)加(jia)(jia)(jia)熱(re)(re)(re)介質溫度升高(gao),加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)出口(kou)得(de)到工(gong)藝要求的高(gao)溫介質。
產品特點(dian)
1.升溫(wen)(wen)時間(jian)在試(shi)驗(yan)電(dian)壓下(xia),元(yuan)件從環境(jing)溫(wen)(wen)度升至(zhi)試(shi)驗(yan)溫(wen)(wen)度時間(jian)應(ying)不大于15min
2.額定(ding)功率偏差在充分發熱的(de)條件(jian)(jian)下,元(yuan)件(jian)(jian)的(de)額定(ding)功率的(de)偏差應不超過下列規定(ding)的(de)范圍;對額定(ding)功率小(xiao)于(yu)(yu)等于(yu)(yu)100W的(de)元(yuan)件(jian)(jian)為:士(shi)10%。對額定(ding)功率大于(yu)(yu)100W的(de)元(yuan)件(jian)(jian)為+5%~- 10%或10W,取兩者中的(de)較大值(zhi)。
3.泄露(lu)電(dian)(dian)(dian)流冷態(tai)泄露(lu)電(dian)(dian)(dian)流以及水壓和密(mi)封(feng)試驗后泄露(lu)電(dian)(dian)(dian)流應(ying)不超(chao)過(guo)0.5mA工作溫度(du)(du)下的熱(re)態(tai)泄露(lu)電(dian)(dian)(dian)流應(ying)不超(chao)過(guo)公式中的計算(suan)值,但不超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱(re)態(tai)泄露(lu)電(dian)(dian)(dian)流mA t-發熱(re)長度(du)(du)mm T-工作溫度(du)(du)C多個(ge)元(yuan)件串(chuan)聯到電(dian)(dian)(dian)源中時,應(ying)以這(zhe)一組元(yuan)件為 整體進(jin)行泄露(lu)電(dian)(dian)(dian)流試驗。
4. 絕(jue)(jue)(jue)緣電(dian)(dian)(dian)阻出廠檢驗時冷態(tai)絕(jue)(jue)(jue)緣電(dian)(dian)(dian)阻應(ying)不小(xiao)(xiao)于(yu)50MQ密封試驗后,長期存放或者使用后的絕(jue)(jue)(jue)緣電(dian)(dian)(dian)阻應(ying)不消(xiao)與MQ工作溫(wen)度(du)下(xia)的熱態(tai)絕(jue)(jue)(jue)緣電(dian)(dian)(dian)阻應(ying)不低于(yu)公式中的計算值(zhi),但應(ying)不小(xiao)(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕(jue)(jue)(jue)緣電(dian)(dian)(dian)阻MQ t一-發 熱長度(du)mmT一工作溫(wen)度(du)°C
5.絕緣耐壓(ya)強度(du)元件應在規(gui)定的試(shi)(shi)驗條件和(he)試(shi)(shi)驗電壓(ya)下保持1min,而(er)無(wu)閃(shan)絡和(he)擊穿現象
6.經受通斷電(dian)的能力元件應能在規定的試(shi)驗(yan)條件下經歷2000次(ci)通斷電(dian)試(shi)驗(yan),而不發生損壞