防爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)是一種(zhong)消耗電(dian)能(neng)轉換為熱(re)(re)(re)(re)能(neng),來對需加(jia)(jia)(jia)熱(re)(re)(re)(re)物料(liao)進行加(jia)(jia)(jia)熱(re)(re)(re)(re)。防爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)是由外(wai)到里外(wai)殼(不(bu)繡鋼(gang)/碳(tan)鋼(gang)/銅/鈦(tai)材等、發熱(re)(re)(re)(re)絲(鎳鉻鉛(qian)合金(jin))、填充物(氧化鎂(mei),作(zuo)用(yong)(yong)是導熱(re)(re)(re)(re)、絕緣)、外(wai)殼(不(bu)繡鋼(gang)、碳(tan)鋼(gang)、鈦(tai)材、銅 等)、陶瓷(ci)封頭(作(zuo)用(yong)(yong):絕緣)、防爆盒組成的(de)。加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)在(zai)工(gong)作(zuo)中低溫(wen)(wen)流(liu)體介(jie)質通(tong)過管(guan)道在(zai)壓力(li)作(zuo)用(yong)(yong)下進入其輸入口,沿著電(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)容器內(nei)部特定換熱(re)(re)(re)(re)流(liu)道,運用(yong)(yong)空(kong)氣電(dian)熱(re)(re)(re)(re)管(guan)的(de)流(liu)體熱(re)(re)(re)(re)力(li)學原理設計的(de)路徑,帶(dai)走空(kong)氣加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)中的(de)電(dian)熱(re)(re)(re)(re)元件工(gong)作(zuo)中所產生的(de)高(gao)溫(wen)(wen)熱(re)(re)(re)(re)能(neng)量,使空(kong)氣加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)被加(jia)(jia)(jia)熱(re)(re)(re)(re)介(jie)質溫(wen)(wen)度升高(gao),加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)出口得(de)到工(gong)藝要求的(de)高(gao)溫(wen)(wen)介(jie)質。
產品特點(dian)
1.升溫時間在(zai)試驗(yan)電壓下,元件從環境溫度(du)升至試驗(yan)溫度(du)時間應不(bu)大于(yu)15min
2.額(e)(e)定(ding)功(gong)率(lv)偏(pian)差在充分(fen)發熱的條件(jian)下,元件(jian)的額(e)(e)定(ding)功(gong)率(lv)的偏(pian)差應不超過下列規定(ding)的范圍;對額(e)(e)定(ding)功(gong)率(lv)小于等于100W的元件(jian)為:士10%。對額(e)(e)定(ding)功(gong)率(lv)大于100W的元件(jian)為+5%~- 10%或10W,取(qu)兩(liang)者中的較大值。
3.泄(xie)露(lu)電(dian)(dian)(dian)(dian)流(liu)冷態泄(xie)露(lu)電(dian)(dian)(dian)(dian)流(liu)以(yi)及水壓和(he)密封試驗(yan)(yan)后泄(xie)露(lu)電(dian)(dian)(dian)(dian)流(liu)應(ying)不(bu)超過(guo)0.5mA工作溫度下(xia)的(de)熱(re)態泄(xie)露(lu)電(dian)(dian)(dian)(dian)流(liu)應(ying)不(bu)超過(guo)公式中(zhong)的(de)計(ji)算值,但不(bu)超過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態泄(xie)露(lu)電(dian)(dian)(dian)(dian)流(liu)mA t-發(fa)熱(re)長度mm T-工作溫度C多個元件串聯(lian)到電(dian)(dian)(dian)(dian)源中(zhong)時(shi),應(ying)以(yi)這一(yi)組元件為 整體(ti)進行(xing)泄(xie)露(lu)電(dian)(dian)(dian)(dian)流(liu)試驗(yan)(yan)。
4. 絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻出廠檢驗(yan)時(shi)冷態(tai)(tai)絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻應不(bu)小(xiao)于(yu)(yu)(yu)50MQ密(mi)封試(shi)驗(yan)后,長期存放或者使用后的(de)(de)絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻應不(bu)消與MQ工作(zuo)溫度(du)下的(de)(de)熱(re)態(tai)(tai)絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻應不(bu)低于(yu)(yu)(yu)公式(shi)中(zhong)的(de)(de)計算值,但應不(bu)小(xiao)于(yu)(yu)(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)(tai)絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻MQ t一-發 熱(re)長度(du)mmT一工作(zuo)溫度(du)°C
5.絕緣(yuan)耐壓強(qiang)度元(yuan)件應在(zai)規定的試驗條件和試驗電壓下(xia)保持(chi)1min,而無閃(shan)絡和擊穿現象
6.經受通斷(duan)電(dian)的能力(li)元(yuan)件(jian)應能在(zai)規定的試驗條(tiao)件(jian)下經歷2000次通斷(duan)電(dian)試驗,而(er)不發生(sheng)損壞