防(fang)爆(bao)加熱(re)(re)(re)(re)管(guan)(guan)(guan)是一種消耗電(dian)能(neng)轉換為熱(re)(re)(re)(re)能(neng),來對需加熱(re)(re)(re)(re)物料進行加熱(re)(re)(re)(re)。防(fang)爆(bao)加熱(re)(re)(re)(re)管(guan)(guan)(guan)是由(you)外(wai)到里外(wai)殼(ke)(不繡(xiu)(xiu)鋼/碳鋼/銅/鈦(tai)材等、發熱(re)(re)(re)(re)絲(鎳鉻(ge)鉛合金)、填充物(氧化鎂(mei),作(zuo)用是導(dao)熱(re)(re)(re)(re)、絕(jue)緣)、外(wai)殼(ke)(不繡(xiu)(xiu)鋼、碳鋼、鈦(tai)材、銅 等)、陶瓷封頭(作(zuo)用:絕(jue)緣)、防(fang)爆(bao)盒組(zu)成的。加熱(re)(re)(re)(re)管(guan)(guan)(guan)在(zai)工(gong)(gong)作(zuo)中(zhong)低溫流(liu)(liu)體介質通(tong)過(guo)管(guan)(guan)(guan)道(dao)在(zai)壓(ya)力作(zuo)用下進入其輸入口,沿著電(dian)加熱(re)(re)(re)(re)容器內(nei)部特(te)定換熱(re)(re)(re)(re)流(liu)(liu)道(dao),運用空氣電(dian)熱(re)(re)(re)(re)管(guan)(guan)(guan)的流(liu)(liu)體熱(re)(re)(re)(re)力學原理(li)設計的路徑(jing),帶(dai)走空氣加熱(re)(re)(re)(re)管(guan)(guan)(guan)中(zhong)的電(dian)熱(re)(re)(re)(re)元(yuan)件工(gong)(gong)作(zuo)中(zhong)所產生的高溫熱(re)(re)(re)(re)能(neng)量,使空氣加熱(re)(re)(re)(re)管(guan)(guan)(guan)被加熱(re)(re)(re)(re)介質溫度(du)升(sheng)高,加熱(re)(re)(re)(re)管(guan)(guan)(guan)出口得(de)到工(gong)(gong)藝要求的高溫介質。
產品特點
1.升(sheng)溫(wen)時間在試(shi)驗(yan)(yan)電壓下,元件(jian)從環(huan)境溫(wen)度(du)(du)升(sheng)至試(shi)驗(yan)(yan)溫(wen)度(du)(du)時間應不大(da)于15min
2.額(e)(e)定(ding)功(gong)率(lv)偏差(cha)在(zai)充分發熱的(de)(de)條件下(xia),元(yuan)件的(de)(de)額(e)(e)定(ding)功(gong)率(lv)的(de)(de)偏差(cha)應不超過下(xia)列(lie)規定(ding)的(de)(de)范圍;對額(e)(e)定(ding)功(gong)率(lv)小于(yu)等于(yu)100W的(de)(de)元(yuan)件為:士10%。對額(e)(e)定(ding)功(gong)率(lv)大(da)于(yu)100W的(de)(de)元(yuan)件為+5%~- 10%或(huo)10W,取兩者中(zhong)的(de)(de)較大(da)值(zhi)。
3.泄露(lu)電(dian)流(liu)(liu)冷態(tai)(tai)泄露(lu)電(dian)流(liu)(liu)以及水壓(ya)和密封(feng)試驗后泄露(lu)電(dian)流(liu)(liu)應不超(chao)過0.5mA工作溫度(du)下的熱(re)態(tai)(tai)泄露(lu)電(dian)流(liu)(liu)應不超(chao)過公式中的計算值,但不超(chao)過5mA I=1/6 (tTX0.00001) I一 熱(re)態(tai)(tai)泄露(lu)電(dian)流(liu)(liu)mA t-發熱(re)長度(du)mm T-工作溫度(du)C多個元(yuan)件串聯到電(dian)源中時,應以這一組元(yuan)件為 整體(ti)進行泄露(lu)電(dian)流(liu)(liu)試驗。
4. 絕(jue)緣(yuan)電(dian)阻(zu)出廠檢驗(yan)時冷態絕(jue)緣(yuan)電(dian)阻(zu)應不小(xiao)于50MQ密(mi)封(feng)試驗(yan)后,長期存放或(huo)者使用后的絕(jue)緣(yuan)電(dian)阻(zu)應不消(xiao)與(yu)MQ工(gong)作溫(wen)度(du)下的熱態絕(jue)緣(yuan)電(dian)阻(zu)應不低(di)于公式中的計算值,但應不小(xiao)于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(du)mmT一工(gong)作溫(wen)度(du)°C
5.絕緣耐壓強度元(yuan)件應在規定的試驗條件和試驗電(dian)壓下(xia)保持1min,而無閃(shan)絡和擊穿現象
6.經受通(tong)斷電(dian)的(de)能力元件(jian)應(ying)能在規定的(de)試(shi)驗條件(jian)下(xia)經歷2000次通(tong)斷電(dian)試(shi)驗,而不發(fa)生損壞