防(fang)(fang)爆加(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)是(shi)一種消(xiao)耗電(dian)能(neng)轉換為熱(re)(re)(re)能(neng),來對需加(jia)(jia)(jia)(jia)熱(re)(re)(re)物料進行(xing)加(jia)(jia)(jia)(jia)熱(re)(re)(re)。防(fang)(fang)爆加(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)是(shi)由(you)外(wai)到(dao)里外(wai)殼(ke)(不繡(xiu)鋼(gang)(gang)/碳(tan)鋼(gang)(gang)/銅/鈦(tai)材(cai)等(deng)、發熱(re)(re)(re)絲(鎳鉻鉛合金(jin))、填充(chong)物(氧(yang)化鎂,作用(yong)是(shi)導(dao)熱(re)(re)(re)、絕緣(yuan))、外(wai)殼(ke)(不繡(xiu)鋼(gang)(gang)、碳(tan)鋼(gang)(gang)、鈦(tai)材(cai)、銅 等(deng))、陶瓷封頭(作用(yong):絕緣(yuan))、防(fang)(fang)爆盒組成的。加(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)在工作中(zhong)(zhong)低(di)溫(wen)流體介質(zhi)通過管(guan)道在壓力(li)作用(yong)下(xia)進入其輸入口,沿(yan)著電(dian)加(jia)(jia)(jia)(jia)熱(re)(re)(re)容器內部特定換熱(re)(re)(re)流道,運用(yong)空(kong)(kong)氣(qi)電(dian)熱(re)(re)(re)管(guan)的流體熱(re)(re)(re)力(li)學(xue)原理(li)設(she)計的路徑,帶(dai)走空(kong)(kong)氣(qi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)中(zhong)(zhong)的電(dian)熱(re)(re)(re)元件工作中(zhong)(zhong)所產(chan)生的高溫(wen)熱(re)(re)(re)能(neng)量(liang),使空(kong)(kong)氣(qi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)被(bei)加(jia)(jia)(jia)(jia)熱(re)(re)(re)介質(zhi)溫(wen)度(du)升高,加(jia)(jia)(jia)(jia)熱(re)(re)(re)管(guan)出口得到(dao)工藝要求的高溫(wen)介質(zhi)。
產品特點(dian)
1.升溫時間在試驗(yan)電壓下,元件從環境溫度升至試驗(yan)溫度時間應不大(da)于15min
2.額(e)定(ding)功(gong)(gong)率(lv)偏差在(zai)充分發熱的(de)條件(jian)下,元件(jian)的(de)額(e)定(ding)功(gong)(gong)率(lv)的(de)偏差應不超過下列規(gui)定(ding)的(de)范(fan)圍;對額(e)定(ding)功(gong)(gong)率(lv)小(xiao)于(yu)等于(yu)100W的(de)元件(jian)為(wei):士10%。對額(e)定(ding)功(gong)(gong)率(lv)大(da)于(yu)100W的(de)元件(jian)為(wei)+5%~- 10%或(huo)10W,取兩者中的(de)較(jiao)大(da)值。
3.泄(xie)露電(dian)(dian)流(liu)冷(leng)態泄(xie)露電(dian)(dian)流(liu)以(yi)及(ji)水(shui)壓(ya)和密封試(shi)驗后泄(xie)露電(dian)(dian)流(liu)應(ying)(ying)不(bu)超(chao)(chao)過0.5mA工(gong)作(zuo)溫度(du)下的(de)熱態泄(xie)露電(dian)(dian)流(liu)應(ying)(ying)不(bu)超(chao)(chao)過公式中(zhong)的(de)計(ji)算值,但不(bu)超(chao)(chao)過5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)露電(dian)(dian)流(liu)mA t-發熱長度(du)mm T-工(gong)作(zuo)溫度(du)C多個元件串聯到電(dian)(dian)源中(zhong)時,應(ying)(ying)以(yi)這一組元件為(wei) 整(zheng)體進行泄(xie)露電(dian)(dian)流(liu)試(shi)驗。
4. 絕(jue)緣(yuan)電阻(zu)出廠檢(jian)驗時冷態絕(jue)緣(yuan)電阻(zu)應不(bu)小于(yu)50MQ密(mi)封試驗后(hou),長(chang)期存放(fang)或者使(shi)用后(hou)的絕(jue)緣(yuan)電阻(zu)應不(bu)消(xiao)與MQ工(gong)作(zuo)溫度下的熱態絕(jue)緣(yuan)電阻(zu)應不(bu)低(di)于(yu)公式中的計算值,但應不(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)緣(yuan)電阻(zu)MQ t一-發 熱長(chang)度mmT一工(gong)作(zuo)溫度°C
5.絕緣耐壓(ya)(ya)強(qiang)度(du)元件(jian)應(ying)在(zai)規定的試驗(yan)(yan)條(tiao)件(jian)和試驗(yan)(yan)電壓(ya)(ya)下保(bao)持1min,而無閃絡和擊穿現象
6.經受通(tong)斷(duan)電(dian)的能(neng)力元件應能(neng)在規定的試(shi)驗條(tiao)件下(xia)經歷2000次(ci)通(tong)斷(duan)電(dian)試(shi)驗,而不發生損壞