防爆(bao)加(jia)(jia)(jia)熱(re)(re)管(guan)(guan)是(shi)一種(zhong)消耗(hao)電(dian)能轉換(huan)為熱(re)(re)能，來對需加(jia)(jia)(jia)熱(re)(re)物料進(jin)(jin)行(xing)加(jia)(jia)(jia)熱(re)(re)。防爆(bao)加(jia)(jia)(jia)熱(re)(re)管(guan)(guan)是(shi)由(you)外(wai)到里外(wai)殼（不繡鋼/碳鋼/銅/鈦(tai)材(cai)等、發熱(re)(re)絲（鎳(nie)鉻(ge)鉛合金(jin)）、填充物（氧化鎂，作用是(shi)導熱(re)(re)、絕緣）、外(wai)殼（不繡鋼、碳鋼、鈦(tai)材(cai)、銅  等）、陶瓷封頭（作用：絕緣）、防爆(bao)盒(he)組(zu)成的(de)(de)。加(jia)(jia)(jia)熱(re)(re)管(guan)(guan)在工作中(zhong)低溫流(liu)(liu)體(ti)(ti)介質通過管(guan)(guan)道在壓(ya)力作用下進(jin)(jin)入其(qi)輸入口，沿(yan)著電(dian)加(jia)(jia)(jia)熱(re)(re)容器內部特定換(huan)熱(re)(re)流(liu)(liu)道，運用空(kong)氣電(dian)熱(re)(re)管(guan)(guan)的(de)(de)流(liu)(liu)體(ti)(ti)熱(re)(re)力學(xue)原理設計的(de)(de)路徑，帶走空(kong)氣加(jia)(jia)(jia)熱(re)(re)管(guan)(guan)中(zhong)的(de)(de)電(dian)熱(re)(re)元(yuan)件工作中(zhong)所產生(sheng)的(de)(de)高溫熱(re)(re)能量(liang)，使(shi)空(kong)氣加(jia)(jia)(jia)熱(re)(re)管(guan)(guan)被(bei)加(jia)(jia)(jia)熱(re)(re)介質溫度升高，加(jia)(jia)(jia)熱(re)(re)管(guan)(guan)出(chu)口得到工藝要(yao)求的(de)(de)高溫介質。

產品(pin)特點(dian)

1.升(sheng)溫時間在試驗(yan)電壓下，元件從環(huan)境(jing)溫度升(sheng)至試驗(yan)溫度時間應(ying)不大于15min

2.額(e)定(ding)(ding)(ding)功率(lv)(lv)偏差(cha)在(zai)充分發熱的(de)(de)條(tiao)件(jian)(jian)(jian)下，元件(jian)(jian)(jian)的(de)(de)額(e)定(ding)(ding)(ding)功率(lv)(lv)的(de)(de)偏差(cha)應不超過下列規定(ding)(ding)(ding)的(de)(de)范圍(wei);對(dui)額(e)定(ding)(ding)(ding)功率(lv)(lv)小于等于100W的(de)(de)元件(jian)(jian)(jian)為:士10%。對(dui)額(e)定(ding)(ding)(ding)功率(lv)(lv)大于100W的(de)(de)元件(jian)(jian)(jian)為+5%~- 10%或10W,取兩(liang)者中的(de)(de)較大值。

3.泄(xie)露(lu)電(dian)(dian)(dian)流冷(leng)態泄(xie)露(lu)電(dian)(dian)(dian)流以(yi)及(ji)水(shui)壓和密封試驗后泄(xie)露(lu)電(dian)(dian)(dian)流應(ying)(ying)不(bu)超(chao)過(guo)0.5mA工(gong)作(zuo)溫度(du)(du)下的熱(re)態泄(xie)露(lu)電(dian)(dian)(dian)流應(ying)(ying)不(bu)超(chao)過(guo)公式中(zhong)的計算值，但不(bu)超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱(re)態泄(xie)露(lu)電(dian)(dian)(dian)流mA t-發熱(re)長度(du)(du)mm T-工(gong)作(zuo)溫度(du)(du)C多個元(yuan)件(jian)串聯到電(dian)(dian)(dian)源中(zhong)時，應(ying)(ying)以(yi)這一組元(yuan)件(jian)為(wei) 整(zheng)體進行泄(xie)露(lu)電(dian)(dian)(dian)流試驗。

4. 絕(jue)(jue)緣(yuan)電(dian)阻(zu)出廠檢驗時冷態絕(jue)(jue)緣(yuan)電(dian)阻(zu)應不(bu)(bu)小于50MQ密封試驗后，長(chang)期(qi)存(cun)放(fang)或者(zhe)使用后的(de)絕(jue)(jue)緣(yuan)電(dian)阻(zu)應不(bu)(bu)消與MQ工作溫度(du)下的(de)熱(re)(re)態絕(jue)(jue)緣(yuan)電(dian)阻(zu)應不(bu)(bu)低于公式中(zhong)的(de)計算(suan)值，但應不(bu)(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態絕(jue)(jue)緣(yuan)電(dian)阻(zu)MQ t一-發 熱(re)(re)長(chang)度(du)mmT一工作溫度(du)°C

5.絕緣耐壓(ya)強度(du)元件(jian)應在規定的試(shi)驗(yan)條件(jian)和試(shi)驗(yan)電(dian)壓(ya)下保持1min,而無閃絡和擊穿現象

6.經受通斷電(dian)的能(neng)力(li)元件(jian)應能(neng)在(zai)規(gui)定的試驗(yan)條件(jian)下經歷2000次通斷電(dian)試驗(yan)，而(er)不發(fa)生損壞