防爆(bao)加(jia)(jia)熱(re)(re)管(guan)(guan)是一種消耗電(dian)(dian)(dian)能轉(zhuan)換為熱(re)(re)能,來對需加(jia)(jia)熱(re)(re)物料進行加(jia)(jia)熱(re)(re)。防爆(bao)加(jia)(jia)熱(re)(re)管(guan)(guan)是由外(wai)(wai)到里(li)外(wai)(wai)殼(不(bu)繡(xiu)鋼/碳(tan)鋼/銅(tong)/鈦(tai)材(cai)等、發熱(re)(re)絲(鎳鉻鉛(qian)合金)、填充(chong)物(氧化鎂,作(zuo)(zuo)(zuo)用(yong)是導熱(re)(re)、絕緣)、外(wai)(wai)殼(不(bu)繡(xiu)鋼、碳(tan)鋼、鈦(tai)材(cai)、銅(tong) 等)、陶瓷封頭(作(zuo)(zuo)(zuo)用(yong):絕緣)、防爆(bao)盒組成的(de)。加(jia)(jia)熱(re)(re)管(guan)(guan)在工(gong)作(zuo)(zuo)(zuo)中(zhong)(zhong)低溫(wen)流體介(jie)質通過(guo)管(guan)(guan)道在壓力(li)作(zuo)(zuo)(zuo)用(yong)下進入其輸入口(kou),沿(yan)著電(dian)(dian)(dian)加(jia)(jia)熱(re)(re)容器內部特定換熱(re)(re)流道,運(yun)用(yong)空氣(qi)電(dian)(dian)(dian)熱(re)(re)管(guan)(guan)的(de)流體熱(re)(re)力(li)學(xue)原理設計的(de)路徑,帶走空氣(qi)加(jia)(jia)熱(re)(re)管(guan)(guan)中(zhong)(zhong)的(de)電(dian)(dian)(dian)熱(re)(re)元(yuan)件(jian)工(gong)作(zuo)(zuo)(zuo)中(zhong)(zhong)所(suo)產生的(de)高溫(wen)熱(re)(re)能量,使空氣(qi)加(jia)(jia)熱(re)(re)管(guan)(guan)被加(jia)(jia)熱(re)(re)介(jie)質溫(wen)度升高,加(jia)(jia)熱(re)(re)管(guan)(guan)出口(kou)得到工(gong)藝要求的(de)高溫(wen)介(jie)質。
產品特點
1.升溫(wen)時(shi)間在試驗電壓下,元件從環(huan)境溫(wen)度升至試驗溫(wen)度時(shi)間應(ying)不(bu)大于15min
2.額(e)定(ding)功率(lv)(lv)偏差在充分(fen)發熱(re)的條件(jian)下,元(yuan)件(jian)的額(e)定(ding)功率(lv)(lv)的偏差應(ying)不(bu)超過(guo)下列規定(ding)的范圍;對額(e)定(ding)功率(lv)(lv)小于(yu)等于(yu)100W的元(yuan)件(jian)為:士10%。對額(e)定(ding)功率(lv)(lv)大于(yu)100W的元(yuan)件(jian)為+5%~- 10%或10W,取兩者中的較大值。
3.泄(xie)露電(dian)(dian)流(liu)冷態(tai)泄(xie)露電(dian)(dian)流(liu)以及水壓和(he)密(mi)封試驗后泄(xie)露電(dian)(dian)流(liu)應不超(chao)過(guo)0.5mA工作溫(wen)度下的(de)熱態(tai)泄(xie)露電(dian)(dian)流(liu)應不超(chao)過(guo)公(gong)式(shi)中(zhong)的(de)計算值(zhi),但不超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄(xie)露電(dian)(dian)流(liu)mA t-發熱長度mm T-工作溫(wen)度C多個元件(jian)串聯到電(dian)(dian)源中(zhong)時(shi),應以這(zhe)一組元件(jian)為 整體進行泄(xie)露電(dian)(dian)流(liu)試驗。
4. 絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻出廠檢驗時冷(leng)態絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻應(ying)不(bu)小于50MQ密封試(shi)驗后,長(chang)(chang)期存(cun)放或者(zhe)使用后的(de)絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻應(ying)不(bu)消與(yu)MQ工作(zuo)溫度下的(de)熱態絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻應(ying)不(bu)低于公(gong)式中的(de)計算值(zhi),但應(ying)不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻MQ t一-發 熱長(chang)(chang)度mmT一工作(zuo)溫度°C
5.絕緣耐壓(ya)(ya)強度(du)元件應在規定的試(shi)驗(yan)條件和試(shi)驗(yan)電壓(ya)(ya)下保持1min,而無閃絡和擊穿現象(xiang)
6.經受通斷電的能力元件應能在規(gui)定的試驗條(tiao)件下經歷2000次通斷電試驗,而不發生損壞