防(fang)爆加(jia)(jia)熱(re)管(guan)(guan)(guan)是(shi)一種(zhong)消(xiao)耗電(dian)(dian)(dian)(dian)能轉換為(wei)熱(re)能,來(lai)對需加(jia)(jia)熱(re)物(wu)(wu)料進行加(jia)(jia)熱(re)。防(fang)爆加(jia)(jia)熱(re)管(guan)(guan)(guan)是(shi)由外(wai)(wai)到里外(wai)(wai)殼(不繡鋼(gang)(gang)/碳鋼(gang)(gang)/銅(tong)/鈦(tai)(tai)材等、發熱(re)絲(鎳(nie)鉻鉛合金(jin))、填充物(wu)(wu)(氧化鎂,作(zuo)用(yong)是(shi)導熱(re)、絕(jue)緣)、外(wai)(wai)殼(不繡鋼(gang)(gang)、碳鋼(gang)(gang)、鈦(tai)(tai)材、銅(tong) 等)、陶瓷封(feng)頭(tou)(作(zuo)用(yong):絕(jue)緣)、防(fang)爆盒組成(cheng)的(de)(de)。加(jia)(jia)熱(re)管(guan)(guan)(guan)在工(gong)(gong)作(zuo)中低溫(wen)流(liu)體介質通過管(guan)(guan)(guan)道在壓力作(zuo)用(yong)下進入其輸入口,沿著電(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)容器內部特(te)定換熱(re)流(liu)道,運用(yong)空(kong)氣(qi)電(dian)(dian)(dian)(dian)熱(re)管(guan)(guan)(guan)的(de)(de)流(liu)體熱(re)力學原(yuan)理設計的(de)(de)路徑(jing),帶走空(kong)氣(qi)加(jia)(jia)熱(re)管(guan)(guan)(guan)中的(de)(de)電(dian)(dian)(dian)(dian)熱(re)元件(jian)工(gong)(gong)作(zuo)中所(suo)產生的(de)(de)高溫(wen)熱(re)能量(liang),使(shi)空(kong)氣(qi)加(jia)(jia)熱(re)管(guan)(guan)(guan)被(bei)加(jia)(jia)熱(re)介質溫(wen)度升高,加(jia)(jia)熱(re)管(guan)(guan)(guan)出口得到工(gong)(gong)藝要求的(de)(de)高溫(wen)介質。
產品特點
1.升(sheng)溫(wen)時間在試(shi)驗電壓下,元件從(cong)環境溫(wen)度升(sheng)至試(shi)驗溫(wen)度時間應(ying)不(bu)大(da)于15min
2.額(e)定(ding)(ding)功率(lv)(lv)(lv)偏差(cha)在(zai)充分發熱的(de)條件(jian)下(xia),元(yuan)件(jian)的(de)額(e)定(ding)(ding)功率(lv)(lv)(lv)的(de)偏差(cha)應不超過下(xia)列規定(ding)(ding)的(de)范圍;對(dui)(dui)額(e)定(ding)(ding)功率(lv)(lv)(lv)小(xiao)于等于100W的(de)元(yuan)件(jian)為(wei):士10%。對(dui)(dui)額(e)定(ding)(ding)功率(lv)(lv)(lv)大于100W的(de)元(yuan)件(jian)為(wei)+5%~- 10%或10W,取兩者中(zhong)的(de)較大值。
3.泄(xie)(xie)露(lu)電(dian)流(liu)(liu)冷態泄(xie)(xie)露(lu)電(dian)流(liu)(liu)以及水壓和密封試驗后泄(xie)(xie)露(lu)電(dian)流(liu)(liu)應不(bu)超(chao)過0.5mA工作(zuo)溫(wen)(wen)度(du)下的熱態泄(xie)(xie)露(lu)電(dian)流(liu)(liu)應不(bu)超(chao)過公式中的計算(suan)值(zhi),但不(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一 熱態泄(xie)(xie)露(lu)電(dian)流(liu)(liu)mA t-發熱長度(du)mm T-工作(zuo)溫(wen)(wen)度(du)C多個(ge)元(yuan)件串聯到電(dian)源中時,應以這一組元(yuan)件為 整體進行(xing)泄(xie)(xie)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(ying)(ying)不(bu)(bu)小于50MQ密封試(shi)驗(yan)后,長期存放(fang)或(huo)者使用后的絕(jue)緣(yuan)電(dian)阻(zu)應(ying)(ying)不(bu)(bu)消與MQ工作(zuo)溫度(du)下的熱態絕(jue)緣(yuan)電(dian)阻(zu)應(ying)(ying)不(bu)(bu)低于公式中的計算值,但應(ying)(ying)不(bu)(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)緣(yuan)電(dian)阻(zu)MQ t一(yi)-發(fa) 熱長度(du)mmT一(yi)工作(zuo)溫度(du)°C
5.絕緣(yuan)耐壓強度元件應(ying)在規定(ding)的試(shi)驗(yan)條(tiao)件和試(shi)驗(yan)電壓下保持1min,而無閃絡和擊穿(chuan)現象
6.經受通(tong)斷(duan)電的能(neng)力(li)元件(jian)應能(neng)在(zai)規定(ding)的試(shi)驗(yan)條件(jian)下經歷(li)2000次(ci)通(tong)斷(duan)電試(shi)驗(yan),而不發(fa)生損壞