防(fang)爆加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)是一(yi)種消耗電(dian)能(neng)轉換為熱(re)(re)(re)(re)(re)能(neng),來對需加(jia)(jia)熱(re)(re)(re)(re)(re)物(wu)料進(jin)行(xing)加(jia)(jia)熱(re)(re)(re)(re)(re)。防(fang)爆加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)是由外(wai)到(dao)里(li)外(wai)殼(ke)(不繡(xiu)鋼(gang)(gang)(gang)/碳鋼(gang)(gang)(gang)/銅(tong)/鈦(tai)材(cai)等、發(fa)熱(re)(re)(re)(re)(re)絲(鎳鉻鉛(qian)合金)、填充物(wu)(氧(yang)化鎂,作(zuo)用是導熱(re)(re)(re)(re)(re)、絕緣(yuan))、外(wai)殼(ke)(不繡(xiu)鋼(gang)(gang)(gang)、碳鋼(gang)(gang)(gang)、鈦(tai)材(cai)、銅(tong) 等)、陶瓷(ci)封頭(作(zuo)用:絕緣(yuan))、防(fang)爆盒組成的(de)。加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)在(zai)工(gong)(gong)作(zuo)中(zhong)低(di)溫(wen)(wen)流體介質(zhi)通過管(guan)道在(zai)壓(ya)力作(zuo)用下(xia)進(jin)入其輸入口(kou),沿著電(dian)加(jia)(jia)熱(re)(re)(re)(re)(re)容器內部(bu)特(te)定換熱(re)(re)(re)(re)(re)流道,運用空氣電(dian)熱(re)(re)(re)(re)(re)管(guan)的(de)流體熱(re)(re)(re)(re)(re)力學原理設計的(de)路(lu)徑,帶走空氣加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)中(zhong)的(de)電(dian)熱(re)(re)(re)(re)(re)元件工(gong)(gong)作(zuo)中(zhong)所產生的(de)高(gao)溫(wen)(wen)熱(re)(re)(re)(re)(re)能(neng)量,使空氣加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)被加(jia)(jia)熱(re)(re)(re)(re)(re)介質(zhi)溫(wen)(wen)度升高(gao),加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)出口(kou)得(de)到(dao)工(gong)(gong)藝(yi)要(yao)求的(de)高(gao)溫(wen)(wen)介質(zhi)。
產品特點(dian)
1.升溫(wen)時間(jian)在試驗電壓下,元(yuan)件(jian)從環境溫(wen)度升至(zhi)試驗溫(wen)度時間(jian)應不(bu)大(da)于15min
2.額定(ding)功(gong)率(lv)偏差(cha)(cha)在充分發熱(re)的(de)(de)條件(jian)(jian)下(xia),元件(jian)(jian)的(de)(de)額定(ding)功(gong)率(lv)的(de)(de)偏差(cha)(cha)應不超過(guo)下(xia)列規定(ding)的(de)(de)范(fan)圍;對(dui)額定(ding)功(gong)率(lv)小于(yu)等于(yu)100W的(de)(de)元件(jian)(jian)為(wei):士10%。對(dui)額定(ding)功(gong)率(lv)大于(yu)100W的(de)(de)元件(jian)(jian)為(wei)+5%~- 10%或10W,取兩者中的(de)(de)較大值(zhi)。
3.泄(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)冷態泄(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)以(yi)及水(shui)壓和(he)密(mi)封(feng)試驗(yan)(yan)后(hou)泄(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)應不超(chao)(chao)過(guo)0.5mA工作溫度下(xia)的熱態泄(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)應不超(chao)(chao)過(guo)公式中的計算值,但不超(chao)(chao)過(guo)5mA I=1/6 (tTX0.00001) I一(yi) 熱態泄(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)mA t-發熱長度mm T-工作溫度C多個元件(jian)串聯(lian)到(dao)電(dian)(dian)(dian)源中時(shi),應以(yi)這(zhe)一(yi)組元件(jian)為 整體進行(xing)泄(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)試驗(yan)(yan)。
4. 絕(jue)緣(yuan)(yuan)(yuan)電(dian)阻出廠檢驗時冷態絕(jue)緣(yuan)(yuan)(yuan)電(dian)阻應(ying)不(bu)小于50MQ密封試驗后,長(chang)期存放或者使用后的絕(jue)緣(yuan)(yuan)(yuan)電(dian)阻應(ying)不(bu)消與MQ工作溫(wen)度下的熱態絕(jue)緣(yuan)(yuan)(yuan)電(dian)阻應(ying)不(bu)低于公式(shi)中的計算值(zhi),但應(ying)不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)緣(yuan)(yuan)(yuan)電(dian)阻MQ t一-發 熱長(chang)度mmT一工作溫(wen)度°C
5.絕緣耐(nai)壓強度元件(jian)應(ying)在規(gui)定的(de)試驗(yan)條件(jian)和試驗(yan)電(dian)壓下(xia)保持1min,而無閃(shan)絡和擊(ji)穿現(xian)象
6.經(jing)受通斷電的能(neng)力元(yuan)件應(ying)能(neng)在規定的試(shi)驗條(tiao)件下經(jing)歷2000次通斷電試(shi)驗,而不發生(sheng)損(sun)壞