防爆(bao)加(jia)(jia)熱(re)(re)(re)(re)管(guan)是(shi)一種消耗電(dian)(dian)能轉(zhuan)換(huan)為熱(re)(re)(re)(re)能,來對需加(jia)(jia)熱(re)(re)(re)(re)物料進行(xing)加(jia)(jia)熱(re)(re)(re)(re)。防爆(bao)加(jia)(jia)熱(re)(re)(re)(re)管(guan)是(shi)由外到里外殼(ke)(不(bu)(bu)繡(xiu)(xiu)鋼(gang)/碳鋼(gang)/銅/鈦(tai)材(cai)等、發熱(re)(re)(re)(re)絲(鎳鉻鉛合金)、填充物(氧化鎂,作用(yong)(yong)是(shi)導熱(re)(re)(re)(re)、絕緣)、外殼(ke)(不(bu)(bu)繡(xiu)(xiu)鋼(gang)、碳鋼(gang)、鈦(tai)材(cai)、銅 等)、陶瓷封頭(作用(yong)(yong):絕緣)、防爆(bao)盒組成(cheng)的(de)。加(jia)(jia)熱(re)(re)(re)(re)管(guan)在工作中低(di)溫(wen)流體介質(zhi)通過管(guan)道(dao)在壓力作用(yong)(yong)下進入其(qi)輸入口(kou),沿著電(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)容器內部特定(ding)換(huan)熱(re)(re)(re)(re)流道(dao),運用(yong)(yong)空(kong)氣電(dian)(dian)熱(re)(re)(re)(re)管(guan)的(de)流體熱(re)(re)(re)(re)力學原理設計的(de)路(lu)徑,帶走空(kong)氣加(jia)(jia)熱(re)(re)(re)(re)管(guan)中的(de)電(dian)(dian)熱(re)(re)(re)(re)元件(jian)工作中所(suo)產生的(de)高溫(wen)熱(re)(re)(re)(re)能量,使(shi)空(kong)氣加(jia)(jia)熱(re)(re)(re)(re)管(guan)被加(jia)(jia)熱(re)(re)(re)(re)介質(zhi)溫(wen)度升高,加(jia)(jia)熱(re)(re)(re)(re)管(guan)出口(kou)得(de)到工藝要求的(de)高溫(wen)介質(zhi)。
產品特點(dian)
1.升(sheng)溫(wen)時間在試驗(yan)電(dian)壓(ya)下,元件從環境溫(wen)度(du)升(sheng)至(zhi)試驗(yan)溫(wen)度(du)時間應不大于(yu)15min
2.額(e)定(ding)(ding)功(gong)率偏(pian)差(cha)在充(chong)分發熱的(de)(de)條件(jian)(jian)下,元(yuan)件(jian)(jian)的(de)(de)額(e)定(ding)(ding)功(gong)率的(de)(de)偏(pian)差(cha)應不超過下列規定(ding)(ding)的(de)(de)范圍;對(dui)額(e)定(ding)(ding)功(gong)率小于(yu)等(deng)于(yu)100W的(de)(de)元(yuan)件(jian)(jian)為(wei):士10%。對(dui)額(e)定(ding)(ding)功(gong)率大于(yu)100W的(de)(de)元(yuan)件(jian)(jian)為(wei)+5%~- 10%或10W,取兩者中的(de)(de)較大值。
3.泄露(lu)(lu)電(dian)(dian)流冷態泄露(lu)(lu)電(dian)(dian)流以(yi)及水壓(ya)和密封試(shi)驗后泄露(lu)(lu)電(dian)(dian)流應(ying)不超(chao)過(guo)0.5mA工(gong)(gong)作溫度(du)下的熱態泄露(lu)(lu)電(dian)(dian)流應(ying)不超(chao)過(guo)公式中的計算值,但不超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱態泄露(lu)(lu)電(dian)(dian)流mA t-發熱長(chang)度(du)mm T-工(gong)(gong)作溫度(du)C多個元件串聯到電(dian)(dian)源中時,應(ying)以(yi)這一(yi)組(zu)元件為(wei) 整體進行(xing)泄露(lu)(lu)電(dian)(dian)流試(shi)驗。
4. 絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)出廠檢驗(yan)時(shi)冷態絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)應(ying)不小于50MQ密封試(shi)驗(yan)后(hou),長期存(cun)放或者使用后(hou)的絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)應(ying)不消與MQ工(gong)作溫度下的熱態絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)應(ying)不低于公式中的計算值,但應(ying)不小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)MQ t一(yi)-發 熱長度mmT一(yi)工(gong)作溫度°C
5.絕緣耐壓強度元件應在規定的試驗條件和試驗電壓下保(bao)持1min,而無閃絡(luo)和擊穿現象
6.經受通斷(duan)電的能力元件應(ying)能在規定的試驗(yan)條(tiao)件下經歷2000次通斷(duan)電試驗(yan),而不發(fa)生損壞