防(fang)(fang)爆加(jia)熱(re)(re)(re)管(guan)是一種消耗電能(neng)轉換為(wei)熱(re)(re)(re)能(neng),來(lai)對需加(jia)熱(re)(re)(re)物(wu)料進(jin)行加(jia)熱(re)(re)(re)。防(fang)(fang)爆加(jia)熱(re)(re)(re)管(guan)是由(you)外到里外殼(不(bu)繡鋼/碳鋼/銅(tong)/鈦(tai)(tai)材等(deng)(deng)、發熱(re)(re)(re)絲(鎳鉻鉛合金(jin))、填充(chong)物(wu)(氧化鎂,作(zuo)用(yong)是導熱(re)(re)(re)、絕緣)、外殼(不(bu)繡鋼、碳鋼、鈦(tai)(tai)材、銅(tong) 等(deng)(deng))、陶瓷封(feng)頭(tou)(作(zuo)用(yong):絕緣)、防(fang)(fang)爆盒組成的(de)。加(jia)熱(re)(re)(re)管(guan)在工(gong)作(zuo)中(zhong)低溫(wen)流(liu)體介質(zhi)通過管(guan)道在壓力作(zuo)用(yong)下進(jin)入(ru)其輸入(ru)口(kou),沿著電加(jia)熱(re)(re)(re)容器內(nei)部特定換熱(re)(re)(re)流(liu)道,運用(yong)空氣(qi)電熱(re)(re)(re)管(guan)的(de)流(liu)體熱(re)(re)(re)力學(xue)原理設(she)計的(de)路(lu)徑,帶走空氣(qi)加(jia)熱(re)(re)(re)管(guan)中(zhong)的(de)電熱(re)(re)(re)元件(jian)工(gong)作(zuo)中(zhong)所(suo)產(chan)生(sheng)的(de)高溫(wen)熱(re)(re)(re)能(neng)量(liang),使空氣(qi)加(jia)熱(re)(re)(re)管(guan)被加(jia)熱(re)(re)(re)介質(zhi)溫(wen)度升(sheng)高,加(jia)熱(re)(re)(re)管(guan)出口(kou)得到工(gong)藝要(yao)求的(de)高溫(wen)介質(zhi)。
產品特點
1.升溫(wen)時(shi)間(jian)在(zai)試驗電壓(ya)下(xia),元件從環境(jing)溫(wen)度升至試驗溫(wen)度時(shi)間(jian)應不大于15min
2.額定(ding)(ding)功率(lv)偏差在充分發熱的(de)條件(jian)(jian)下,元(yuan)件(jian)(jian)的(de)額定(ding)(ding)功率(lv)的(de)偏差應不超(chao)過(guo)下列規(gui)定(ding)(ding)的(de)范圍;對額定(ding)(ding)功率(lv)小(xiao)于等于100W的(de)元(yuan)件(jian)(jian)為(wei):士(shi)10%。對額定(ding)(ding)功率(lv)大(da)(da)于100W的(de)元(yuan)件(jian)(jian)為(wei)+5%~- 10%或(huo)10W,取兩者中(zhong)的(de)較大(da)(da)值。
3.泄(xie)露(lu)電(dian)(dian)流冷態(tai)泄(xie)露(lu)電(dian)(dian)流以及水壓和密封(feng)試(shi)驗后泄(xie)露(lu)電(dian)(dian)流應不超過0.5mA工作溫(wen)度(du)下的熱態(tai)泄(xie)露(lu)電(dian)(dian)流應不超過公(gong)式(shi)中的計算值,但(dan)不超過5mA I=1/6 (tTX0.00001) I一(yi) 熱態(tai)泄(xie)露(lu)電(dian)(dian)流mA t-發熱長度(du)mm T-工作溫(wen)度(du)C多個元件串聯(lian)到(dao)電(dian)(dian)源中時,應以這(zhe)一(yi)組元件為(wei) 整(zheng)體(ti)進行(xing)泄(xie)露(lu)電(dian)(dian)流試(shi)驗。
4. 絕緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)出廠檢驗時冷態(tai)絕緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)應不(bu)小于50MQ密封試驗后,長期存放或者使用后的(de)(de)絕緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)應不(bu)消(xiao)與MQ工作(zuo)溫(wen)度(du)下的(de)(de)熱態(tai)絕緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)應不(bu)低(di)于公式中的(de)(de)計算值(zhi),但應不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)MQ t一(yi)-發 熱長度(du)mmT一(yi)工作(zuo)溫(wen)度(du)°C
5.絕緣耐壓(ya)強度(du)元件(jian)應在(zai)規定的試(shi)(shi)驗條件(jian)和(he)試(shi)(shi)驗電壓(ya)下保持1min,而(er)無閃(shan)絡和(he)擊穿(chuan)現象
6.經受通斷電的能力元件應能在(zai)規定的試驗(yan)條件下(xia)經歷(li)2000次(ci)通斷電試驗(yan),而不(bu)發生損壞