防(fang)(fang)爆(bao)(bao)(bao)加(jia)熱(re)(re)(re)(re)管是(shi)一種消耗電(dian)(dian)能(neng)轉換(huan)為熱(re)(re)(re)(re)能(neng),來對需加(jia)熱(re)(re)(re)(re)物(wu)料進(jin)行加(jia)熱(re)(re)(re)(re)。防(fang)(fang)爆(bao)(bao)(bao)加(jia)熱(re)(re)(re)(re)管是(shi)由外(wai)到(dao)里外(wai)殼(ke)(不繡鋼(gang)/碳鋼(gang)/銅/鈦材(cai)等、發熱(re)(re)(re)(re)絲(鎳鉻鉛合金)、填(tian)充物(wu)(氧化(hua)鎂,作(zuo)(zuo)用是(shi)導熱(re)(re)(re)(re)、絕緣)、外(wai)殼(ke)(不繡鋼(gang)、碳鋼(gang)、鈦材(cai)、銅 等)、陶(tao)瓷封(feng)頭(作(zuo)(zuo)用:絕緣)、防(fang)(fang)爆(bao)(bao)(bao)盒組成(cheng)的。加(jia)熱(re)(re)(re)(re)管在(zai)工(gong)作(zuo)(zuo)中低溫(wen)流體介質(zhi)(zhi)通過管道(dao)(dao)在(zai)壓力作(zuo)(zuo)用下進(jin)入其輸入口(kou),沿(yan)著電(dian)(dian)加(jia)熱(re)(re)(re)(re)容器(qi)內(nei)部特定換(huan)熱(re)(re)(re)(re)流道(dao)(dao),運用空氣(qi)電(dian)(dian)熱(re)(re)(re)(re)管的流體熱(re)(re)(re)(re)力學原理設計的路徑,帶(dai)走空氣(qi)加(jia)熱(re)(re)(re)(re)管中的電(dian)(dian)熱(re)(re)(re)(re)元(yuan)件工(gong)作(zuo)(zuo)中所產生的高溫(wen)熱(re)(re)(re)(re)能(neng)量,使空氣(qi)加(jia)熱(re)(re)(re)(re)管被加(jia)熱(re)(re)(re)(re)介質(zhi)(zhi)溫(wen)度(du)升高,加(jia)熱(re)(re)(re)(re)管出口(kou)得到(dao)工(gong)藝要求的高溫(wen)介質(zhi)(zhi)。
產品(pin)特(te)點
1.升(sheng)(sheng)溫(wen)時間(jian)在試(shi)驗(yan)電(dian)壓下,元件從環境溫(wen)度升(sheng)(sheng)至試(shi)驗(yan)溫(wen)度時間(jian)應不大于15min
2.額(e)定(ding)功(gong)(gong)率偏差(cha)在充分發(fa)熱的(de)條件下,元(yuan)(yuan)件的(de)額(e)定(ding)功(gong)(gong)率的(de)偏差(cha)應不超過下列規(gui)定(ding)的(de)范圍;對(dui)額(e)定(ding)功(gong)(gong)率小于等于100W的(de)元(yuan)(yuan)件為:士(shi)10%。對(dui)額(e)定(ding)功(gong)(gong)率大于100W的(de)元(yuan)(yuan)件為+5%~- 10%或10W,取兩者中的(de)較(jiao)大值。
3.泄(xie)(xie)(xie)露(lu)電(dian)(dian)流(liu)冷態(tai)(tai)泄(xie)(xie)(xie)露(lu)電(dian)(dian)流(liu)以及水壓和密(mi)封試驗后泄(xie)(xie)(xie)露(lu)電(dian)(dian)流(liu)應不(bu)(bu)超過(guo)0.5mA工作(zuo)溫度(du)(du)下的(de)熱態(tai)(tai)泄(xie)(xie)(xie)露(lu)電(dian)(dian)流(liu)應不(bu)(bu)超過(guo)公(gong)式中的(de)計(ji)算值,但不(bu)(bu)超過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱態(tai)(tai)泄(xie)(xie)(xie)露(lu)電(dian)(dian)流(liu)mA t-發熱長度(du)(du)mm T-工作(zuo)溫度(du)(du)C多個元件串聯到(dao)電(dian)(dian)源(yuan)中時,應以這一(yi)組(zu)元件為 整體進行泄(xie)(xie)(xie)露(lu)電(dian)(dian)流(liu)試驗。
4. 絕(jue)緣(yuan)電(dian)阻(zu)出廠檢驗時冷態絕(jue)緣(yuan)電(dian)阻(zu)應(ying)(ying)不(bu)小于(yu)(yu)50MQ密封試驗后,長期(qi)存放或者使用(yong)后的絕(jue)緣(yuan)電(dian)阻(zu)應(ying)(ying)不(bu)消與MQ工(gong)作(zuo)溫度下的熱態絕(jue)緣(yuan)電(dian)阻(zu)應(ying)(ying)不(bu)低于(yu)(yu)公(gong)式(shi)中的計算值,但應(ying)(ying)不(bu)小于(yu)(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)緣(yuan)電(dian)阻(zu)MQ t一-發 熱長度mmT一工(gong)作(zuo)溫度°C
5.絕緣耐壓(ya)強度元件(jian)應在規定的試驗條件(jian)和試驗電壓(ya)下保持1min,而無閃絡和擊(ji)穿現象
6.經(jing)受通(tong)斷(duan)(duan)電的能(neng)力元件應(ying)能(neng)在規定(ding)的試驗(yan)條(tiao)件下經(jing)歷2000次通(tong)斷(duan)(duan)電試驗(yan),而不發生(sheng)損壞