防(fang)爆加熱(re)(re)(re)管(guan)(guan)是(shi)一(yi)種消耗電(dian)能(neng)轉(zhuan)換為熱(re)(re)(re)能(neng),來對(dui)需加熱(re)(re)(re)物(wu)料進行加熱(re)(re)(re)。防(fang)爆加熱(re)(re)(re)管(guan)(guan)是(shi)由外(wai)到里外(wai)殼(ke)(不繡鋼/碳鋼/銅(tong)/鈦(tai)材等、發熱(re)(re)(re)絲(鎳(nie)鉻鉛合金)、填充物(wu)(氧化鎂,作用(yong)(yong)是(shi)導熱(re)(re)(re)、絕緣)、外(wai)殼(ke)(不繡鋼、碳鋼、鈦(tai)材、銅(tong) 等)、陶(tao)瓷封頭(作用(yong)(yong):絕緣)、防(fang)爆盒組成的(de)。加熱(re)(re)(re)管(guan)(guan)在(zai)工(gong)作中(zhong)低溫(wen)流體(ti)介(jie)質(zhi)通過(guo)管(guan)(guan)道在(zai)壓力作用(yong)(yong)下進入其輸(shu)入口,沿著電(dian)加熱(re)(re)(re)容器(qi)內部特定(ding)換熱(re)(re)(re)流道,運用(yong)(yong)空氣(qi)(qi)電(dian)熱(re)(re)(re)管(guan)(guan)的(de)流體(ti)熱(re)(re)(re)力學原(yuan)理設計(ji)的(de)路徑,帶走(zou)空氣(qi)(qi)加熱(re)(re)(re)管(guan)(guan)中(zhong)的(de)電(dian)熱(re)(re)(re)元件工(gong)作中(zhong)所(suo)產生的(de)高(gao)溫(wen)熱(re)(re)(re)能(neng)量,使空氣(qi)(qi)加熱(re)(re)(re)管(guan)(guan)被加熱(re)(re)(re)介(jie)質(zhi)溫(wen)度升高(gao),加熱(re)(re)(re)管(guan)(guan)出口得到工(gong)藝要求的(de)高(gao)溫(wen)介(jie)質(zhi)。
產品特點
1.升溫(wen)時(shi)間(jian)在試驗(yan)電(dian)壓下,元件從(cong)環境溫(wen)度(du)升至試驗(yan)溫(wen)度(du)時(shi)間(jian)應不(bu)大于15min
2.額定功率(lv)偏差(cha)在充(chong)分發(fa)熱的(de)(de)條件(jian)下,元件(jian)的(de)(de)額定功率(lv)的(de)(de)偏差(cha)應不(bu)超過下列(lie)規定的(de)(de)范圍;對額定功率(lv)小于等(deng)于100W的(de)(de)元件(jian)為(wei):士10%。對額定功率(lv)大于100W的(de)(de)元件(jian)為(wei)+5%~- 10%或10W,取兩者中的(de)(de)較大值。
3.泄(xie)露電(dian)(dian)(dian)流冷態泄(xie)露電(dian)(dian)(dian)流以及水壓和密封試驗(yan)后泄(xie)露電(dian)(dian)(dian)流應不(bu)超(chao)過(guo)0.5mA工(gong)作溫(wen)度(du)下的(de)熱態泄(xie)露電(dian)(dian)(dian)流應不(bu)超(chao)過(guo)公式(shi)中的(de)計(ji)算值,但不(bu)超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)露電(dian)(dian)(dian)流mA t-發熱長(chang)度(du)mm T-工(gong)作溫(wen)度(du)C多個(ge)元(yuan)件串聯(lian)到(dao)電(dian)(dian)(dian)源中時,應以這(zhe)一組元(yuan)件為 整體(ti)進行泄(xie)露電(dian)(dian)(dian)流試驗(yan)。
4. 絕(jue)緣(yuan)電(dian)阻(zu)出廠檢驗(yan)時冷態(tai)絕(jue)緣(yuan)電(dian)阻(zu)應(ying)(ying)不(bu)(bu)小于50MQ密封試驗(yan)后,長(chang)期存(cun)放(fang)或者使用后的絕(jue)緣(yuan)電(dian)阻(zu)應(ying)(ying)不(bu)(bu)消與MQ工(gong)作(zuo)溫度(du)(du)下的熱(re)態(tai)絕(jue)緣(yuan)電(dian)阻(zu)應(ying)(ying)不(bu)(bu)低于公(gong)式中的計(ji)算(suan)值(zhi),但應(ying)(ying)不(bu)(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕(jue)緣(yuan)電(dian)阻(zu)MQ t一(yi)-發 熱(re)長(chang)度(du)(du)mmT一(yi)工(gong)作(zuo)溫度(du)(du)°C
5.絕(jue)緣(yuan)耐壓強度元件(jian)應(ying)在規定的試(shi)驗條(tiao)件(jian)和(he)試(shi)驗電壓下保(bao)持1min,而(er)無閃(shan)絡和(he)擊穿現象(xiang)
6.經(jing)受通斷(duan)(duan)電(dian)的(de)能(neng)力元件(jian)應能(neng)在規定的(de)試(shi)驗條件(jian)下經(jing)歷2000次通斷(duan)(duan)電(dian)試(shi)驗,而不發生損壞