防(fang)爆加熱(re)(re)(re)(re)(re)管(guan)是一種消耗電(dian)(dian)能(neng)轉換為熱(re)(re)(re)(re)(re)能(neng),來對需加熱(re)(re)(re)(re)(re)物料進(jin)行(xing)加熱(re)(re)(re)(re)(re)。防(fang)爆加熱(re)(re)(re)(re)(re)管(guan)是由外到里外殼(不繡鋼(gang)/碳(tan)鋼(gang)/銅/鈦(tai)材等、發(fa)熱(re)(re)(re)(re)(re)絲(鎳鉻鉛(qian)合金)、填充物(氧化鎂,作(zuo)用(yong)是導熱(re)(re)(re)(re)(re)、絕緣)、外殼(不繡鋼(gang)、碳(tan)鋼(gang)、鈦(tai)材、銅 等)、陶瓷封頭(作(zuo)用(yong):絕緣)、防(fang)爆盒組成的。加熱(re)(re)(re)(re)(re)管(guan)在工(gong)(gong)作(zuo)中低溫流體介(jie)質(zhi)通過(guo)管(guan)道(dao)在壓力作(zuo)用(yong)下進(jin)入(ru)其輸入(ru)口,沿(yan)著電(dian)(dian)加熱(re)(re)(re)(re)(re)容(rong)器內部特定換熱(re)(re)(re)(re)(re)流道(dao),運用(yong)空氣電(dian)(dian)熱(re)(re)(re)(re)(re)管(guan)的流體熱(re)(re)(re)(re)(re)力學原理(li)設計的路徑,帶走空氣加熱(re)(re)(re)(re)(re)管(guan)中的電(dian)(dian)熱(re)(re)(re)(re)(re)元件工(gong)(gong)作(zuo)中所產生的高(gao)溫熱(re)(re)(re)(re)(re)能(neng)量,使(shi)空氣加熱(re)(re)(re)(re)(re)管(guan)被(bei)加熱(re)(re)(re)(re)(re)介(jie)質(zhi)溫度(du)升(sheng)高(gao),加熱(re)(re)(re)(re)(re)管(guan)出口得到工(gong)(gong)藝要(yao)求的高(gao)溫介(jie)質(zhi)。
產品特點
1.升溫(wen)時(shi)(shi)間(jian)在試(shi)驗(yan)電壓下,元件從環(huan)境(jing)溫(wen)度(du)升至試(shi)驗(yan)溫(wen)度(du)時(shi)(shi)間(jian)應不大于15min
2.額(e)(e)定(ding)功(gong)率偏差在充分發熱的條件(jian)下(xia),元件(jian)的額(e)(e)定(ding)功(gong)率的偏差應不超過下(xia)列規(gui)定(ding)的范圍;對額(e)(e)定(ding)功(gong)率小于等于100W的元件(jian)為(wei):士10%。對額(e)(e)定(ding)功(gong)率大于100W的元件(jian)為(wei)+5%~- 10%或10W,取兩(liang)者中的較大值。
3.泄(xie)(xie)(xie)露(lu)電(dian)流冷態(tai)(tai)泄(xie)(xie)(xie)露(lu)電(dian)流以及水壓和密封試驗后泄(xie)(xie)(xie)露(lu)電(dian)流應(ying)(ying)不超(chao)(chao)過0.5mA工作溫度(du)下的熱態(tai)(tai)泄(xie)(xie)(xie)露(lu)電(dian)流應(ying)(ying)不超(chao)(chao)過公式中的計算值,但不超(chao)(chao)過5mA I=1/6 (tTX0.00001) I一(yi) 熱態(tai)(tai)泄(xie)(xie)(xie)露(lu)電(dian)流mA t-發熱長度(du)mm T-工作溫度(du)C多個元件串(chuan)聯到(dao)電(dian)源中時,應(ying)(ying)以這一(yi)組元件為 整(zheng)體進行泄(xie)(xie)(xie)露(lu)電(dian)流試驗。
4. 絕緣(yuan)(yuan)(yuan)電阻(zu)出廠檢驗時(shi)冷態(tai)絕緣(yuan)(yuan)(yuan)電阻(zu)應(ying)不(bu)小于50MQ密(mi)封試驗后,長期存放或(huo)者(zhe)使用(yong)后的絕緣(yuan)(yuan)(yuan)電阻(zu)應(ying)不(bu)消與MQ工作溫(wen)度下的熱(re)態(tai)絕緣(yuan)(yuan)(yuan)電阻(zu)應(ying)不(bu)低于公式(shi)中(zhong)的計算值,但應(ying)不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕緣(yuan)(yuan)(yuan)電阻(zu)MQ t一-發 熱(re)長度mmT一工作溫(wen)度°C
5.絕緣耐壓強度(du)元件應在規定的試驗(yan)條件和試驗(yan)電壓下(xia)保持(chi)1min,而無(wu)閃絡和擊(ji)穿(chuan)現象
6.經受通斷(duan)電(dian)的(de)能(neng)力元件應能(neng)在規定的(de)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