防爆(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)是(shi)一種消耗電(dian)(dian)能轉換為熱(re)(re)(re)(re)(re)能,來對需加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)物料(liao)進行加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)。防爆(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)是(shi)由外到里外殼(ke)(不(bu)繡(xiu)鋼/碳鋼/銅/鈦材等、發熱(re)(re)(re)(re)(re)絲(si)(鎳(nie)鉻鉛合金)、填充物(氧化鎂,作(zuo)用(yong)(yong)是(shi)導熱(re)(re)(re)(re)(re)、絕緣)、外殼(ke)(不(bu)繡(xiu)鋼、碳鋼、鈦材、銅 等)、陶瓷(ci)封頭(作(zuo)用(yong)(yong):絕緣)、防爆(bao)盒(he)組成的。加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)在工作(zuo)中低溫(wen)(wen)(wen)流體(ti)介質通(tong)過管(guan)(guan)道在壓力作(zuo)用(yong)(yong)下(xia)進入其輸入口,沿著電(dian)(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)容器內部特定換熱(re)(re)(re)(re)(re)流道,運用(yong)(yong)空(kong)氣電(dian)(dian)熱(re)(re)(re)(re)(re)管(guan)(guan)的流體(ti)熱(re)(re)(re)(re)(re)力學(xue)原理設計的路(lu)徑,帶走(zou)空(kong)氣加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)中的電(dian)(dian)熱(re)(re)(re)(re)(re)元件(jian)工作(zuo)中所產生的高(gao)(gao)溫(wen)(wen)(wen)熱(re)(re)(re)(re)(re)能量,使(shi)空(kong)氣加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)被加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)介質溫(wen)(wen)(wen)度升高(gao)(gao),加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)出口得(de)到工藝(yi)要求的高(gao)(gao)溫(wen)(wen)(wen)介質。
產品特點
1.升(sheng)溫(wen)時(shi)間在試驗(yan)電壓下(xia),元件從環境(jing)溫(wen)度升(sheng)至(zhi)試驗(yan)溫(wen)度時(shi)間應不大于15min
2.額(e)定功(gong)率(lv)偏差在充分發熱的(de)(de)(de)(de)(de)條(tiao)件(jian)下,元(yuan)(yuan)件(jian)的(de)(de)(de)(de)(de)額(e)定功(gong)率(lv)的(de)(de)(de)(de)(de)偏差應不超過下列(lie)規(gui)定的(de)(de)(de)(de)(de)范圍;對(dui)額(e)定功(gong)率(lv)小于等于100W的(de)(de)(de)(de)(de)元(yuan)(yuan)件(jian)為(wei):士10%。對(dui)額(e)定功(gong)率(lv)大(da)于100W的(de)(de)(de)(de)(de)元(yuan)(yuan)件(jian)為(wei)+5%~- 10%或10W,取兩(liang)者中的(de)(de)(de)(de)(de)較大(da)值。
3.泄露電(dian)流(liu)冷態(tai)泄露電(dian)流(liu)以(yi)及水(shui)壓和密封試驗后泄露電(dian)流(liu)應不(bu)超(chao)過(guo)0.5mA工作(zuo)溫(wen)度下的熱(re)態(tai)泄露電(dian)流(liu)應不(bu)超(chao)過(guo)公式中(zhong)(zhong)的計(ji)算值,但不(bu)超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態(tai)泄露電(dian)流(liu)mA t-發熱(re)長度mm T-工作(zuo)溫(wen)度C多個元(yuan)件(jian)串聯到電(dian)源中(zhong)(zhong)時(shi),應以(yi)這一(yi)組元(yuan)件(jian)為 整體進行泄露電(dian)流(liu)試驗。
4. 絕(jue)緣電(dian)(dian)阻(zu)出廠檢驗(yan)時冷態(tai)絕(jue)緣電(dian)(dian)阻(zu)應不小(xiao)于(yu)(yu)50MQ密(mi)封試驗(yan)后(hou),長期(qi)存放(fang)或(huo)者使用后(hou)的絕(jue)緣電(dian)(dian)阻(zu)應不消與MQ工(gong)作溫(wen)度下(xia)的熱(re)(re)態(tai)絕(jue)緣電(dian)(dian)阻(zu)應不低(di)于(yu)(yu)公式中的計算值(zhi),但應不小(xiao)于(yu)(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態(tai)絕(jue)緣電(dian)(dian)阻(zu)MQ t一(yi)-發(fa) 熱(re)(re)長度mmT一(yi)工(gong)作溫(wen)度°C
5.絕緣耐壓(ya)強度(du)元件(jian)應在規定的(de)試(shi)驗(yan)條件(jian)和試(shi)驗(yan)電壓(ya)下保(bao)持1min,而(er)無閃絡和擊穿(chuan)現象(xiang)
6.經受通斷電的(de)能力元(yuan)件(jian)應(ying)能在規定的(de)試驗(yan)條件(jian)下經歷2000次通斷電試驗(yan),而不發生(sheng)損(sun)壞(huai)