防爆加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)是(shi)一種消耗電能轉換(huan)為(wei)熱(re)(re)(re)(re)(re)(re)能,來對需加(jia)熱(re)(re)(re)(re)(re)(re)物料進(jin)行加(jia)熱(re)(re)(re)(re)(re)(re)。防爆加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)是(shi)由外(wai)(wai)(wai)到(dao)里外(wai)(wai)(wai)殼(不繡鋼(gang)/碳鋼(gang)/銅(tong)/鈦(tai)(tai)材等(deng)、發熱(re)(re)(re)(re)(re)(re)絲(鎳鉻鉛合金)、填充(chong)物(氧化鎂,作(zuo)(zuo)用是(shi)導熱(re)(re)(re)(re)(re)(re)、絕(jue)緣)、外(wai)(wai)(wai)殼(不繡鋼(gang)、碳鋼(gang)、鈦(tai)(tai)材、銅(tong) 等(deng))、陶瓷封頭(作(zuo)(zuo)用:絕(jue)緣)、防爆盒組成的(de)。加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)在工(gong)作(zuo)(zuo)中(zhong)低溫流(liu)體(ti)介質(zhi)通(tong)過(guo)管(guan)(guan)道在壓力作(zuo)(zuo)用下進(jin)入(ru)其輸入(ru)口(kou),沿著電加(jia)熱(re)(re)(re)(re)(re)(re)容器內部特定(ding)換(huan)熱(re)(re)(re)(re)(re)(re)流(liu)道,運用空(kong)(kong)氣電熱(re)(re)(re)(re)(re)(re)管(guan)(guan)的(de)流(liu)體(ti)熱(re)(re)(re)(re)(re)(re)力學原理設計的(de)路徑,帶(dai)走空(kong)(kong)氣加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)中(zhong)的(de)電熱(re)(re)(re)(re)(re)(re)元件工(gong)作(zuo)(zuo)中(zhong)所產生(sheng)的(de)高(gao)溫熱(re)(re)(re)(re)(re)(re)能量,使空(kong)(kong)氣加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)被加(jia)熱(re)(re)(re)(re)(re)(re)介質(zhi)溫度升(sheng)高(gao),加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)出口(kou)得(de)到(dao)工(gong)藝(yi)要求的(de)高(gao)溫介質(zhi)。
產品特點
1.升溫(wen)時間在試(shi)驗電壓下,元(yuan)件從環(huan)境(jing)溫(wen)度(du)升至(zhi)試(shi)驗溫(wen)度(du)時間應不大于15min
2.額(e)定功(gong)(gong)率偏差在(zai)充分發熱的(de)(de)條(tiao)件(jian)(jian)下,元(yuan)件(jian)(jian)的(de)(de)額(e)定功(gong)(gong)率的(de)(de)偏差應不超過下列規定的(de)(de)范圍;對額(e)定功(gong)(gong)率小于等于100W的(de)(de)元(yuan)件(jian)(jian)為:士10%。對額(e)定功(gong)(gong)率大于100W的(de)(de)元(yuan)件(jian)(jian)為+5%~- 10%或10W,取兩者中的(de)(de)較大值。
3.泄露(lu)電(dian)(dian)流(liu)冷態(tai)(tai)泄露(lu)電(dian)(dian)流(liu)以(yi)及水(shui)壓和密封試(shi)驗后(hou)泄露(lu)電(dian)(dian)流(liu)應不(bu)超(chao)(chao)過0.5mA工(gong)作溫(wen)度(du)下(xia)的熱(re)態(tai)(tai)泄露(lu)電(dian)(dian)流(liu)應不(bu)超(chao)(chao)過公式中的計(ji)算值,但不(bu)超(chao)(chao)過5mA I=1/6 (tTX0.00001) I一 熱(re)態(tai)(tai)泄露(lu)電(dian)(dian)流(liu)mA t-發熱(re)長度(du)mm T-工(gong)作溫(wen)度(du)C多(duo)個(ge)元(yuan)件(jian)串(chuan)聯到電(dian)(dian)源中時,應以(yi)這(zhe)一組元(yuan)件(jian)為 整(zheng)體進行泄露(lu)電(dian)(dian)流(liu)試(shi)驗。
4. 絕(jue)緣(yuan)電阻出(chu)廠檢(jian)驗時(shi)冷態(tai)絕(jue)緣(yuan)電阻應(ying)不(bu)小(xiao)于50MQ密封(feng)試(shi)驗后,長期存放或者使用后的絕(jue)緣(yuan)電阻應(ying)不(bu)消與MQ工(gong)作溫(wen)度(du)下的熱(re)態(tai)絕(jue)緣(yuan)電阻應(ying)不(bu)低(di)于公式中的計算值(zhi),但應(ying)不(bu)小(xiao)于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕(jue)緣(yuan)電阻MQ t一-發 熱(re)長度(du)mmT一工(gong)作溫(wen)度(du)°C
5.絕緣耐(nai)壓(ya)強(qiang)度元件(jian)應在規定(ding)的試驗條件(jian)和(he)試驗電壓(ya)下保持1min,而(er)無閃絡和(he)擊穿現象
6.經受通斷電的能力元件應(ying)能在規定的試驗條件下(xia)經歷(li)2000次(ci)通斷電試驗,而(er)不發生損壞