防(fang)爆加熱(re)(re)(re)(re)管(guan)(guan)(guan)是一種消(xiao)耗(hao)電能轉(zhuan)換(huan)為熱(re)(re)(re)(re)能,來對需加熱(re)(re)(re)(re)物料進行加熱(re)(re)(re)(re)。防(fang)爆加熱(re)(re)(re)(re)管(guan)(guan)(guan)是由外到里外殼(ke)(不(bu)繡鋼(gang)/碳鋼(gang)/銅(tong)/鈦(tai)材等(deng)、發熱(re)(re)(re)(re)絲(si)(鎳鉻鉛合金)、填(tian)充(chong)物(氧(yang)化鎂,作(zuo)用是導熱(re)(re)(re)(re)、絕緣)、外殼(ke)(不(bu)繡鋼(gang)、碳鋼(gang)、鈦(tai)材、銅(tong) 等(deng))、陶(tao)瓷封頭(作(zuo)用:絕緣)、防(fang)爆盒組成的(de)(de)(de)。加熱(re)(re)(re)(re)管(guan)(guan)(guan)在工(gong)作(zuo)中(zhong)(zhong)低溫流(liu)體(ti)介(jie)質(zhi)通過管(guan)(guan)(guan)道在壓力作(zuo)用下進入其(qi)輸入口,沿著電加熱(re)(re)(re)(re)容器內部(bu)特定換(huan)熱(re)(re)(re)(re)流(liu)道,運用空(kong)氣電熱(re)(re)(re)(re)管(guan)(guan)(guan)的(de)(de)(de)流(liu)體(ti)熱(re)(re)(re)(re)力學(xue)原理設計的(de)(de)(de)路(lu)徑,帶走空(kong)氣加熱(re)(re)(re)(re)管(guan)(guan)(guan)中(zhong)(zhong)的(de)(de)(de)電熱(re)(re)(re)(re)元件工(gong)作(zuo)中(zhong)(zhong)所(suo)產生(sheng)的(de)(de)(de)高(gao)溫熱(re)(re)(re)(re)能量(liang),使空(kong)氣加熱(re)(re)(re)(re)管(guan)(guan)(guan)被加熱(re)(re)(re)(re)介(jie)質(zhi)溫度升高(gao),加熱(re)(re)(re)(re)管(guan)(guan)(guan)出口得(de)到工(gong)藝要(yao)求的(de)(de)(de)高(gao)溫介(jie)質(zhi)。
產品特點
1.升溫(wen)時(shi)間在試(shi)(shi)驗電壓下,元件從環境溫(wen)度升至試(shi)(shi)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(fa)熱的(de)(de)條件(jian)下,元件(jian)的(de)(de)額定(ding)(ding)功(gong)率的(de)(de)偏差應不超過下列規定(ding)(ding)的(de)(de)范圍;對(dui)額定(ding)(ding)功(gong)率小于等于100W的(de)(de)元件(jian)為:士10%。對(dui)額定(ding)(ding)功(gong)率大于100W的(de)(de)元件(jian)為+5%~- 10%或(huo)10W,取兩者中的(de)(de)較(jiao)大值。
3.泄露(lu)電(dian)(dian)(dian)流冷態泄露(lu)電(dian)(dian)(dian)流以及水壓和密(mi)封試驗后(hou)泄露(lu)電(dian)(dian)(dian)流應(ying)不(bu)超(chao)過0.5mA工作溫度(du)下(xia)的熱(re)態泄露(lu)電(dian)(dian)(dian)流應(ying)不(bu)超(chao)過公式中的計算(suan)值(zhi),但不(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態泄露(lu)電(dian)(dian)(dian)流mA t-發熱(re)長(chang)度(du)mm T-工作溫度(du)C多個元件(jian)(jian)串聯到(dao)電(dian)(dian)(dian)源(yuan)中時(shi),應(ying)以這一(yi)組元件(jian)(jian)為 整(zheng)體進行(xing)泄露(lu)電(dian)(dian)(dian)流試驗。
4. 絕(jue)緣(yuan)電(dian)阻出廠檢驗時冷態(tai)(tai)絕(jue)緣(yuan)電(dian)阻應不小(xiao)于50MQ密封試驗后,長期存放或者使用(yong)后的絕(jue)緣(yuan)電(dian)阻應不消(xiao)與MQ工作(zuo)溫度下的熱(re)(re)態(tai)(tai)絕(jue)緣(yuan)電(dian)阻應不低于公式中(zhong)的計算值,但應不小(xiao)于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態(tai)(tai)絕(jue)緣(yuan)電(dian)阻MQ t一(yi)-發 熱(re)(re)長度mmT一(yi)工作(zuo)溫度°C
5.絕緣耐(nai)壓強(qiang)度元件應在規定(ding)的試驗條(tiao)件和試驗電壓下保持1min,而無(wu)閃絡(luo)和擊穿現象
6.經(jing)(jing)受通斷電的(de)能力元件應能在規定的(de)試驗條件下經(jing)(jing)歷2000次通斷電試驗,而(er)不發生損壞