防爆加(jia)熱(re)(re)管是(shi)一種消耗電(dian)能轉換為熱(re)(re)能,來對需(xu)加(jia)熱(re)(re)物(wu)(wu)料進行(xing)加(jia)熱(re)(re)。防爆加(jia)熱(re)(re)管是(shi)由外(wai)(wai)到(dao)里外(wai)(wai)殼(不繡(xiu)鋼/碳鋼/銅/鈦材等(deng)(deng)、發熱(re)(re)絲(鎳鉻鉛合金)、填充物(wu)(wu)(氧化鎂,作用是(shi)導熱(re)(re)、絕緣)、外(wai)(wai)殼(不繡(xiu)鋼、碳鋼、鈦材、銅 等(deng)(deng))、陶瓷封頭(作用:絕緣)、防爆盒組成的(de)。加(jia)熱(re)(re)管在工(gong)(gong)作中低溫(wen)流(liu)體介質(zhi)(zhi)通(tong)過管道在壓(ya)力作用下進入其輸入口,沿著電(dian)加(jia)熱(re)(re)容器內部特定換熱(re)(re)流(liu)道,運用空(kong)氣(qi)電(dian)熱(re)(re)管的(de)流(liu)體熱(re)(re)力學原理設計的(de)路(lu)徑(jing),帶走空(kong)氣(qi)加(jia)熱(re)(re)管中的(de)電(dian)熱(re)(re)元(yuan)件工(gong)(gong)作中所產生的(de)高溫(wen)熱(re)(re)能量,使空(kong)氣(qi)加(jia)熱(re)(re)管被加(jia)熱(re)(re)介質(zhi)(zhi)溫(wen)度升高,加(jia)熱(re)(re)管出口得到(dao)工(gong)(gong)藝要(yao)求的(de)高溫(wen)介質(zhi)(zhi)。
產品特點
1.升(sheng)溫(wen)時間(jian)在試(shi)驗(yan)電(dian)壓下(xia),元件從環境溫(wen)度升(sheng)至試(shi)驗(yan)溫(wen)度時間(jian)應不大(da)于15min
2.額定(ding)功(gong)率(lv)偏(pian)差(cha)在(zai)充分發熱的(de)條件(jian)下,元(yuan)件(jian)的(de)額定(ding)功(gong)率(lv)的(de)偏(pian)差(cha)應(ying)不超過下列規定(ding)的(de)范圍;對額定(ding)功(gong)率(lv)小(xiao)于等于100W的(de)元(yuan)件(jian)為(wei):士(shi)10%。對額定(ding)功(gong)率(lv)大于100W的(de)元(yuan)件(jian)為(wei)+5%~- 10%或10W,取兩者中的(de)較大值。
3.泄(xie)露電(dian)(dian)(dian)流(liu)冷態(tai)泄(xie)露電(dian)(dian)(dian)流(liu)以及水壓(ya)和密(mi)封試(shi)驗后(hou)泄(xie)露電(dian)(dian)(dian)流(liu)應不超過(guo)0.5mA工作溫度(du)(du)(du)下(xia)的熱態(tai)泄(xie)露電(dian)(dian)(dian)流(liu)應不超過(guo)公式中的計算(suan)值,但不超過(guo)5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄(xie)露電(dian)(dian)(dian)流(liu)mA t-發熱長度(du)(du)(du)mm T-工作溫度(du)(du)(du)C多(duo)個(ge)元(yuan)件(jian)串聯到(dao)電(dian)(dian)(dian)源中時(shi),應以這一組元(yuan)件(jian)為 整體(ti)進行泄(xie)露電(dian)(dian)(dian)流(liu)試(shi)驗。
4. 絕(jue)(jue)緣電阻出廠檢驗時冷(leng)態絕(jue)(jue)緣電阻應(ying)(ying)不(bu)小(xiao)于(yu)50MQ密封試驗后,長(chang)(chang)期存放(fang)或(huo)者使(shi)用后的絕(jue)(jue)緣電阻應(ying)(ying)不(bu)消與MQ工(gong)作(zuo)溫(wen)度下(xia)的熱態絕(jue)(jue)緣電阻應(ying)(ying)不(bu)低于(yu)公式中的計算(suan)值,但應(ying)(ying)不(bu)小(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)(jue)緣電阻MQ t一-發 熱長(chang)(chang)度mmT一工(gong)作(zuo)溫(wen)度°C
5.絕(jue)緣耐(nai)壓強度元(yuan)件應在規定(ding)的試(shi)(shi)驗(yan)條件和(he)試(shi)(shi)驗(yan)電壓下保持1min,而無(wu)閃絡和(he)擊穿(chuan)現象
6.經(jing)受(shou)通斷電的能(neng)力(li)元件(jian)應(ying)能(neng)在規定的試(shi)驗(yan)(yan)條件(jian)下經(jing)歷2000次通斷電試(shi)驗(yan)(yan),而不發生損(sun)壞