防(fang)爆加(jia)熱(re)(re)(re)(re)(re)管(guan)是(shi)一(yi)種(zhong)消耗電(dian)能轉換(huan)為熱(re)(re)(re)(re)(re)能,來(lai)對需加(jia)熱(re)(re)(re)(re)(re)物料進(jin)(jin)行加(jia)熱(re)(re)(re)(re)(re)。防(fang)爆加(jia)熱(re)(re)(re)(re)(re)管(guan)是(shi)由外到里外殼(ke)(不繡(xiu)(xiu)鋼/碳(tan)鋼/銅(tong)/鈦材等(deng)、發熱(re)(re)(re)(re)(re)絲(鎳鉻鉛(qian)合金)、填(tian)充物(氧化(hua)鎂,作(zuo)(zuo)用(yong)(yong)是(shi)導(dao)熱(re)(re)(re)(re)(re)、絕緣)、外殼(ke)(不繡(xiu)(xiu)鋼、碳(tan)鋼、鈦材、銅(tong) 等(deng))、陶瓷封(feng)頭(作(zuo)(zuo)用(yong)(yong):絕緣)、防(fang)爆盒組成的。加(jia)熱(re)(re)(re)(re)(re)管(guan)在工(gong)(gong)作(zuo)(zuo)中(zhong)低溫(wen)流(liu)體(ti)介(jie)質通過管(guan)道(dao)在壓力(li)作(zuo)(zuo)用(yong)(yong)下進(jin)(jin)入其輸(shu)入口(kou),沿著電(dian)加(jia)熱(re)(re)(re)(re)(re)容器內(nei)部特定(ding)換(huan)熱(re)(re)(re)(re)(re)流(liu)道(dao),運用(yong)(yong)空氣(qi)電(dian)熱(re)(re)(re)(re)(re)管(guan)的流(liu)體(ti)熱(re)(re)(re)(re)(re)力(li)學原理(li)設(she)計的路徑(jing),帶走空氣(qi)加(jia)熱(re)(re)(re)(re)(re)管(guan)中(zhong)的電(dian)熱(re)(re)(re)(re)(re)元件工(gong)(gong)作(zuo)(zuo)中(zhong)所產生(sheng)的高溫(wen)熱(re)(re)(re)(re)(re)能量,使空氣(qi)加(jia)熱(re)(re)(re)(re)(re)管(guan)被加(jia)熱(re)(re)(re)(re)(re)介(jie)質溫(wen)度升高,加(jia)熱(re)(re)(re)(re)(re)管(guan)出口(kou)得到工(gong)(gong)藝要求的高溫(wen)介(jie)質。
產品特點(dian)
1.升溫(wen)時(shi)間(jian)在試(shi)驗(yan)電壓(ya)下,元件從(cong)環境溫(wen)度(du)升至試(shi)驗(yan)溫(wen)度(du)時(shi)間(jian)應(ying)不大于15min
2.額定(ding)功率(lv)(lv)偏差在(zai)充分發熱的(de)條件下,元件的(de)額定(ding)功率(lv)(lv)的(de)偏差應不超過下列規(gui)定(ding)的(de)范圍(wei);對額定(ding)功率(lv)(lv)小于等于100W的(de)元件為:士(shi)10%。對額定(ding)功率(lv)(lv)大(da)于100W的(de)元件為+5%~- 10%或10W,取兩者中的(de)較大(da)值(zhi)。
3.泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)冷態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)以及水(shui)壓和密封(feng)試(shi)驗后泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)應(ying)不超過(guo)0.5mA工(gong)作溫度(du)下的熱(re)態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)應(ying)不超過(guo)公式(shi)中的計(ji)算值(zhi),但不超過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態(tai)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)mA t-發熱(re)長(chang)度(du)mm T-工(gong)作溫度(du)C多個元件串聯到電(dian)(dian)(dian)源中時,應(ying)以這一(yi)組元件為 整體進(jin)行(xing)泄(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)試(shi)驗。
4. 絕(jue)緣(yuan)(yuan)(yuan)電阻(zu)出廠(chang)檢(jian)驗時冷態絕(jue)緣(yuan)(yuan)(yuan)電阻(zu)應不(bu)小(xiao)于50MQ密封試驗后(hou),長(chang)期存放或者(zhe)使用后(hou)的(de)絕(jue)緣(yuan)(yuan)(yuan)電阻(zu)應不(bu)消與MQ工(gong)(gong)作溫度下的(de)熱(re)態絕(jue)緣(yuan)(yuan)(yuan)電阻(zu)應不(bu)低于公式中的(de)計(ji)算值,但應不(bu)小(xiao)于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕(jue)緣(yuan)(yuan)(yuan)電阻(zu)MQ t一(yi)-發 熱(re)長(chang)度mmT一(yi)工(gong)(gong)作溫度°C
5.絕緣(yuan)耐(nai)壓強度元件(jian)應在規定的試驗條件(jian)和(he)試驗電壓下保持1min,而無(wu)閃絡(luo)和(he)擊(ji)穿現象
6.經受通斷(duan)電(dian)的能力元(yuan)件應(ying)能在規定的試驗(yan)條件下經歷2000次通斷(duan)電(dian)試驗(yan),而不發(fa)生損壞