防爆加熱(re)(re)(re)(re)管(guan)(guan)是一種消耗電(dian)(dian)能轉換(huan)為熱(re)(re)(re)(re)能,來對需加熱(re)(re)(re)(re)物料進行(xing)加熱(re)(re)(re)(re)。防爆加熱(re)(re)(re)(re)管(guan)(guan)是由外(wai)到(dao)里外(wai)殼(不繡(xiu)鋼(gang)/碳鋼(gang)/銅/鈦材(cai)等(deng)、發熱(re)(re)(re)(re)絲(si)(鎳(nie)鉻鉛合金)、填充物(氧化(hua)鎂(mei),作用(yong)(yong)(yong)是導熱(re)(re)(re)(re)、絕緣(yuan))、外(wai)殼(不繡(xiu)鋼(gang)、碳鋼(gang)、鈦材(cai)、銅 等(deng))、陶瓷(ci)封頭(tou)(作用(yong)(yong)(yong):絕緣(yuan))、防爆盒組成的(de)。加熱(re)(re)(re)(re)管(guan)(guan)在(zai)工作中(zhong)低溫(wen)流(liu)體介質通(tong)過管(guan)(guan)道在(zai)壓力作用(yong)(yong)(yong)下進入其(qi)輸入口,沿著電(dian)(dian)加熱(re)(re)(re)(re)容器(qi)內(nei)部(bu)特定換(huan)熱(re)(re)(re)(re)流(liu)道,運用(yong)(yong)(yong)空氣電(dian)(dian)熱(re)(re)(re)(re)管(guan)(guan)的(de)流(liu)體熱(re)(re)(re)(re)力學原理(li)設計的(de)路徑(jing),帶走空氣加熱(re)(re)(re)(re)管(guan)(guan)中(zhong)的(de)電(dian)(dian)熱(re)(re)(re)(re)元件工作中(zhong)所產(chan)生的(de)高(gao)溫(wen)熱(re)(re)(re)(re)能量,使空氣加熱(re)(re)(re)(re)管(guan)(guan)被加熱(re)(re)(re)(re)介質溫(wen)度升高(gao),加熱(re)(re)(re)(re)管(guan)(guan)出口得到(dao)工藝(yi)要(yao)求的(de)高(gao)溫(wen)介質。
產品特點
1.升(sheng)溫時間(jian)在試驗(yan)電壓下,元(yuan)件從環境溫度升(sheng)至試驗(yan)溫度時間(jian)應不大于15min
2.額(e)定功率(lv)(lv)(lv)(lv)偏(pian)差在充分發(fa)熱的(de)條件(jian)下(xia),元(yuan)件(jian)的(de)額(e)定功率(lv)(lv)(lv)(lv)的(de)偏(pian)差應不超過下(xia)列規定的(de)范(fan)圍(wei);對額(e)定功率(lv)(lv)(lv)(lv)小于等于100W的(de)元(yuan)件(jian)為:士10%。對額(e)定功率(lv)(lv)(lv)(lv)大于100W的(de)元(yuan)件(jian)為+5%~- 10%或10W,取兩者中的(de)較大值。
3.泄(xie)(xie)露(lu)電(dian)(dian)流(liu)(liu)冷(leng)態(tai)泄(xie)(xie)露(lu)電(dian)(dian)流(liu)(liu)以及(ji)水壓和(he)密(mi)封試(shi)驗后泄(xie)(xie)露(lu)電(dian)(dian)流(liu)(liu)應不(bu)(bu)超(chao)過0.5mA工作(zuo)溫度(du)下的熱(re)(re)態(tai)泄(xie)(xie)露(lu)電(dian)(dian)流(liu)(liu)應不(bu)(bu)超(chao)過公式中的計(ji)算值,但不(bu)(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一 熱(re)(re)態(tai)泄(xie)(xie)露(lu)電(dian)(dian)流(liu)(liu)mA t-發熱(re)(re)長度(du)mm T-工作(zuo)溫度(du)C多個元(yuan)件串聯到電(dian)(dian)源(yuan)中時,應以這一組元(yuan)件為 整體進行泄(xie)(xie)露(lu)電(dian)(dian)流(liu)(liu)試(shi)驗。
4. 絕緣電(dian)(dian)阻出廠檢驗時冷(leng)態絕緣電(dian)(dian)阻應(ying)不小于50MQ密封試驗后,長期存(cun)放或者使(shi)用后的(de)絕緣電(dian)(dian)阻應(ying)不消與MQ工作溫度下的(de)熱態絕緣電(dian)(dian)阻應(ying)不低于公式中的(de)計算值,但(dan)應(ying)不小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕緣電(dian)(dian)阻MQ t一-發(fa) 熱長度mmT一工作溫度°C
5.絕緣(yuan)耐壓強度元件應在規定的試驗條件和試驗電壓下(xia)保持1min,而無閃絡和擊穿現(xian)象
6.經(jing)受通(tong)斷(duan)電的能力元件(jian)應能在規定的試驗條(tiao)件(jian)下經(jing)歷2000次(ci)通(tong)斷(duan)電試驗,而不(bu)發生損壞(huai)