防爆加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)是一種消耗電(dian)能轉(zhuan)換為(wei)熱(re)(re)(re)(re)能,來對(dui)需加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)料進行加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)。防爆加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)是由外(wai)到(dao)里(li)外(wai)殼(不(bu)繡鋼/碳(tan)鋼/銅(tong)/鈦(tai)材(cai)等、發熱(re)(re)(re)(re)絲(鎳鉻鉛合金)、填充(chong)物(wu)(氧化鎂,作用(yong)(yong)是導熱(re)(re)(re)(re)、絕緣)、外(wai)殼(不(bu)繡鋼、碳(tan)鋼、鈦(tai)材(cai)、銅(tong) 等)、陶瓷封(feng)頭(tou)(作用(yong)(yong):絕緣)、防爆盒組成的(de)。加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)在(zai)工(gong)(gong)作中低溫(wen)流(liu)體(ti)介(jie)質通過管(guan)(guan)(guan)道(dao)在(zai)壓力(li)作用(yong)(yong)下進入(ru)(ru)其(qi)輸入(ru)(ru)口(kou)(kou),沿著電(dian)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)容器內部特定換熱(re)(re)(re)(re)流(liu)道(dao),運用(yong)(yong)空(kong)氣電(dian)熱(re)(re)(re)(re)管(guan)(guan)(guan)的(de)流(liu)體(ti)熱(re)(re)(re)(re)力(li)學(xue)原理設計的(de)路徑,帶走空(kong)氣加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)中的(de)電(dian)熱(re)(re)(re)(re)元件工(gong)(gong)作中所產生的(de)高(gao)(gao)溫(wen)熱(re)(re)(re)(re)能量(liang),使(shi)空(kong)氣加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)被加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)介(jie)質溫(wen)度升高(gao)(gao),加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)(guan)出口(kou)(kou)得到(dao)工(gong)(gong)藝要求的(de)高(gao)(gao)溫(wen)介(jie)質。
產品特點
1.升溫時間(jian)在試驗電壓下(xia),元(yuan)件從環境溫度升至試驗溫度時間(jian)應不(bu)大于(yu)15min
2.額(e)定(ding)功率(lv)偏差在充分發熱的(de)條件下,元(yuan)(yuan)件的(de)額(e)定(ding)功率(lv)的(de)偏差應不超過下列規定(ding)的(de)范圍(wei);對額(e)定(ding)功率(lv)小于(yu)(yu)等于(yu)(yu)100W的(de)元(yuan)(yuan)件為(wei):士10%。對額(e)定(ding)功率(lv)大于(yu)(yu)100W的(de)元(yuan)(yuan)件為(wei)+5%~- 10%或10W,取兩者中的(de)較大值。
3.泄露電(dian)(dian)流(liu)(liu)冷態(tai)泄露電(dian)(dian)流(liu)(liu)以及水壓和密(mi)封試驗后泄露電(dian)(dian)流(liu)(liu)應(ying)(ying)不超(chao)過0.5mA工作溫度下的(de)熱態(tai)泄露電(dian)(dian)流(liu)(liu)應(ying)(ying)不超(chao)過公(gong)式中的(de)計(ji)算值,但(dan)不超(chao)過5mA I=1/6 (tTX0.00001) I一 熱態(tai)泄露電(dian)(dian)流(liu)(liu)mA t-發熱長度mm T-工作溫度C多(duo)個元(yuan)件串聯(lian)到(dao)電(dian)(dian)源中時,應(ying)(ying)以這一組元(yuan)件為 整體進行泄露電(dian)(dian)流(liu)(liu)試驗。
4. 絕緣(yuan)(yuan)電阻出廠(chang)檢(jian)驗時冷態絕緣(yuan)(yuan)電阻應不小于(yu)50MQ密封試驗后(hou),長(chang)期存(cun)放(fang)或(huo)者使用后(hou)的絕緣(yuan)(yuan)電阻應不消(xiao)與MQ工作(zuo)溫度(du)下的熱(re)(re)態絕緣(yuan)(yuan)電阻應不低于(yu)公式(shi)中的計(ji)算值,但應不小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態絕緣(yuan)(yuan)電阻MQ t一(yi)-發 熱(re)(re)長(chang)度(du)mmT一(yi)工作(zuo)溫度(du)°C
5.絕緣耐壓(ya)強度(du)元件(jian)應(ying)在規定的試驗條(tiao)件(jian)和試驗電壓(ya)下(xia)保持1min,而無閃(shan)絡和擊穿現象
6.經(jing)受通斷(duan)電的能力元件應(ying)能在(zai)規定的試(shi)驗條件下經(jing)歷2000次通斷(duan)電試(shi)驗,而不發(fa)生損壞