防(fang)爆(bao)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)是(shi)(shi)一種消(xiao)耗(hao)電(dian)能(neng)轉(zhuan)換(huan)(huan)為熱(re)(re)(re)能(neng),來對需加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)物料(liao)進行加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)。防(fang)爆(bao)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)是(shi)(shi)由外到(dao)里外殼(不(bu)繡(xiu)鋼/碳鋼/銅/鈦(tai)材等、發熱(re)(re)(re)絲(si)(鎳鉻(ge)鉛合(he)金)、填充物(氧化鎂,作(zuo)用(yong)是(shi)(shi)導熱(re)(re)(re)、絕緣)、外殼(不(bu)繡(xiu)鋼、碳鋼、鈦(tai)材、銅 等)、陶瓷封(feng)頭(作(zuo)用(yong):絕緣)、防(fang)爆(bao)盒組成的(de)。加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)在(zai)工(gong)(gong)作(zuo)中(zhong)低(di)溫(wen)流(liu)(liu)體(ti)(ti)介(jie)質通(tong)過管(guan)道在(zai)壓力作(zuo)用(yong)下進入(ru)其(qi)輸入(ru)口,沿著電(dian)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)容器內部特(te)定換(huan)(huan)熱(re)(re)(re)流(liu)(liu)道,運用(yong)空氣電(dian)熱(re)(re)(re)管(guan)的(de)流(liu)(liu)體(ti)(ti)熱(re)(re)(re)力學原理設計的(de)路徑,帶走空氣加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)中(zhong)的(de)電(dian)熱(re)(re)(re)元(yuan)件工(gong)(gong)作(zuo)中(zhong)所產(chan)生的(de)高溫(wen)熱(re)(re)(re)能(neng)量,使空氣加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)被加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)介(jie)質溫(wen)度升高,加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)出口得到(dao)工(gong)(gong)藝要求的(de)高溫(wen)介(jie)質。
產品特點
1.升溫時間在試驗電(dian)壓下,元件從環境溫度升至試驗溫度時間應不大于15min
2.額(e)(e)定(ding)功(gong)率(lv)(lv)(lv)偏(pian)差(cha)在充分發熱的條件下(xia),元件的額(e)(e)定(ding)功(gong)率(lv)(lv)(lv)的偏(pian)差(cha)應不超過(guo)下(xia)列規定(ding)的范圍;對額(e)(e)定(ding)功(gong)率(lv)(lv)(lv)小于等于100W的元件為(wei):士10%。對額(e)(e)定(ding)功(gong)率(lv)(lv)(lv)大于100W的元件為(wei)+5%~- 10%或10W,取兩(liang)者中的較(jiao)大值(zhi)。
3.泄(xie)露電(dian)流冷態泄(xie)露電(dian)流以及水壓和密封試驗后(hou)泄(xie)露電(dian)流應不(bu)超過(guo)0.5mA工(gong)(gong)作(zuo)溫(wen)度下的(de)熱態泄(xie)露電(dian)流應不(bu)超過(guo)公(gong)式中的(de)計(ji)算值,但不(bu)超過(guo)5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)露電(dian)流mA t-發(fa)熱長度mm T-工(gong)(gong)作(zuo)溫(wen)度C多個元(yuan)件(jian)串(chuan)聯到電(dian)源中時,應以這(zhe)一組元(yuan)件(jian)為 整(zheng)體進行泄(xie)露電(dian)流試驗。
4. 絕(jue)緣電(dian)(dian)阻出(chu)廠檢(jian)驗(yan)時冷態絕(jue)緣電(dian)(dian)阻應(ying)(ying)不小(xiao)于(yu)50MQ密(mi)封試(shi)驗(yan)后,長(chang)期存放或者使用后的(de)絕(jue)緣電(dian)(dian)阻應(ying)(ying)不消與MQ工作(zuo)溫度(du)(du)下(xia)的(de)熱(re)(re)態絕(jue)緣電(dian)(dian)阻應(ying)(ying)不低于(yu)公式中(zhong)的(de)計算值,但(dan)應(ying)(ying)不小(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態絕(jue)緣電(dian)(dian)阻MQ t一(yi)(yi)-發(fa) 熱(re)(re)長(chang)度(du)(du)mmT一(yi)(yi)工作(zuo)溫度(du)(du)°C
5.絕緣耐壓強度(du)元(yuan)件(jian)應在規(gui)定的試(shi)驗(yan)條件(jian)和(he)試(shi)驗(yan)電壓下保持1min,而無(wu)閃(shan)絡(luo)和(he)擊穿現象
6.經受通斷(duan)電(dian)的(de)能力元件應(ying)能在規定的(de)試(shi)驗(yan)條(tiao)件下(xia)經歷(li)2000次通斷(duan)電(dian)試(shi)驗(yan),而(er)不(bu)發生損壞