防爆加(jia)(jia)熱(re)(re)(re)管(guan)是(shi)一種消(xiao)耗電(dian)(dian)能轉(zhuan)換(huan)為熱(re)(re)(re)能,來對需加(jia)(jia)熱(re)(re)(re)物料進(jin)行加(jia)(jia)熱(re)(re)(re)。防爆加(jia)(jia)熱(re)(re)(re)管(guan)是(shi)由(you)外到里外殼(不繡鋼/碳鋼/銅(tong)/鈦(tai)材等(deng)、發熱(re)(re)(re)絲(鎳鉻鉛合金(jin))、填充物(氧化鎂,作(zuo)(zuo)用(yong)是(shi)導熱(re)(re)(re)、絕緣)、外殼(不繡鋼、碳鋼、鈦(tai)材、銅(tong) 等(deng))、陶瓷封頭(tou)(作(zuo)(zuo)用(yong):絕緣)、防爆盒組成的(de)(de)。加(jia)(jia)熱(re)(re)(re)管(guan)在(zai)工作(zuo)(zuo)中低溫(wen)(wen)(wen)流體介質通過管(guan)道在(zai)壓力(li)作(zuo)(zuo)用(yong)下進(jin)入其輸入口,沿著電(dian)(dian)加(jia)(jia)熱(re)(re)(re)容器內部特定換(huan)熱(re)(re)(re)流道,運(yun)用(yong)空(kong)氣電(dian)(dian)熱(re)(re)(re)管(guan)的(de)(de)流體熱(re)(re)(re)力(li)學原理(li)設計(ji)的(de)(de)路(lu)徑,帶走空(kong)氣加(jia)(jia)熱(re)(re)(re)管(guan)中的(de)(de)電(dian)(dian)熱(re)(re)(re)元件工作(zuo)(zuo)中所(suo)產生的(de)(de)高(gao)溫(wen)(wen)(wen)熱(re)(re)(re)能量,使空(kong)氣加(jia)(jia)熱(re)(re)(re)管(guan)被加(jia)(jia)熱(re)(re)(re)介質溫(wen)(wen)(wen)度升(sheng)高(gao),加(jia)(jia)熱(re)(re)(re)管(guan)出口得到工藝要求的(de)(de)高(gao)溫(wen)(wen)(wen)介質。
產品特點
1.升(sheng)溫(wen)(wen)(wen)時間在試驗電壓下,元件從環境溫(wen)(wen)(wen)度(du)(du)升(sheng)至試驗溫(wen)(wen)(wen)度(du)(du)時間應不大于(yu)15min
2.額(e)定(ding)功(gong)(gong)率(lv)偏差在(zai)充分發(fa)熱的條件(jian)(jian)(jian)下(xia),元(yuan)件(jian)(jian)(jian)的額(e)定(ding)功(gong)(gong)率(lv)的偏差應不超過下(xia)列規定(ding)的范圍;對額(e)定(ding)功(gong)(gong)率(lv)小(xiao)于(yu)等于(yu)100W的元(yuan)件(jian)(jian)(jian)為(wei):士10%。對額(e)定(ding)功(gong)(gong)率(lv)大于(yu)100W的元(yuan)件(jian)(jian)(jian)為(wei)+5%~- 10%或10W,取兩者(zhe)中的較(jiao)大值。
3.泄(xie)露(lu)電(dian)(dian)流冷態泄(xie)露(lu)電(dian)(dian)流以(yi)(yi)及水壓(ya)和密封試(shi)驗后(hou)泄(xie)露(lu)電(dian)(dian)流應(ying)不(bu)超(chao)過0.5mA工(gong)作溫度下的熱態泄(xie)露(lu)電(dian)(dian)流應(ying)不(bu)超(chao)過公式中的計(ji)算值,但不(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)露(lu)電(dian)(dian)流mA t-發熱長度mm T-工(gong)作溫度C多個(ge)元(yuan)件串聯到(dao)電(dian)(dian)源中時,應(ying)以(yi)(yi)這一組元(yuan)件為 整體進行泄(xie)露(lu)電(dian)(dian)流試(shi)驗。
4. 絕(jue)緣電(dian)阻出廠檢驗時冷(leng)態(tai)絕(jue)緣電(dian)阻應(ying)(ying)(ying)不(bu)(bu)小于50MQ密封試驗后,長(chang)期(qi)存放或者(zhe)使用后的(de)絕(jue)緣電(dian)阻應(ying)(ying)(ying)不(bu)(bu)消與(yu)MQ工(gong)作(zuo)溫度(du)(du)下的(de)熱(re)態(tai)絕(jue)緣電(dian)阻應(ying)(ying)(ying)不(bu)(bu)低(di)于公式中(zhong)的(de)計算(suan)值,但應(ying)(ying)(ying)不(bu)(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕(jue)緣電(dian)阻MQ t一-發 熱(re)長(chang)度(du)(du)mmT一工(gong)作(zuo)溫度(du)(du)°C
5.絕(jue)緣耐(nai)壓強度元件(jian)應在規定的試驗(yan)(yan)條件(jian)和試驗(yan)(yan)電(dian)壓下保持1min,而無(wu)閃絡和擊穿(chuan)現象(xiang)
6.經(jing)受通(tong)斷電(dian)的能(neng)力元件應能(neng)在規定的試(shi)驗條(tiao)件下經(jing)歷2000次通(tong)斷電(dian)試(shi)驗,而不發生損壞(huai)