防爆(bao)(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)管(guan)是(shi)一種消耗(hao)電(dian)能(neng)轉(zhuan)換為(wei)熱(re)(re)(re)(re)(re)(re)(re)(re)能(neng)，來(lai)對(dui)需加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)物料進行加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)。防爆(bao)(bao)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)管(guan)是(shi)由外到里外殼（不(bu)繡鋼(gang)/碳鋼(gang)/銅/鈦(tai)材等、發(fa)熱(re)(re)(re)(re)(re)(re)(re)(re)絲（鎳(nie)鉻鉛合金）、填充(chong)物（氧化鎂(mei)，作用是(shi)導熱(re)(re)(re)(re)(re)(re)(re)(re)、絕緣(yuan)）、外殼（不(bu)繡鋼(gang)、碳鋼(gang)、鈦(tai)材、銅  等）、陶瓷封頭（作用：絕緣(yuan)）、防爆(bao)(bao)盒(he)組(zu)成的。加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)管(guan)在(zai)工(gong)(gong)作中低(di)溫(wen)流體(ti)介質(zhi)(zhi)通(tong)過管(guan)道在(zai)壓力作用下進入(ru)其(qi)輸入(ru)口(kou)(kou)，沿著電(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)容器內部特定換熱(re)(re)(re)(re)(re)(re)(re)(re)流道，運用空(kong)氣電(dian)熱(re)(re)(re)(re)(re)(re)(re)(re)管(guan)的流體(ti)熱(re)(re)(re)(re)(re)(re)(re)(re)力學(xue)原理設(she)計的路徑，帶走空(kong)氣加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)管(guan)中的電(dian)熱(re)(re)(re)(re)(re)(re)(re)(re)元件工(gong)(gong)作中所(suo)產(chan)生的高溫(wen)熱(re)(re)(re)(re)(re)(re)(re)(re)能(neng)量，使空(kong)氣加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)管(guan)被(bei)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)介質(zhi)(zhi)溫(wen)度(du)升(sheng)高，加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)(re)管(guan)出(chu)口(kou)(kou)得到工(gong)(gong)藝要(yao)求(qiu)的高溫(wen)介質(zhi)(zhi)。

產品特(te)點

1.升溫時間在(zai)試驗電壓(ya)下，元件從環境溫度(du)升至試驗溫度(du)時間應(ying)不大于15min

2.額(e)(e)定(ding)(ding)功(gong)率偏差在充分發熱的(de)(de)條件下，元(yuan)件的(de)(de)額(e)(e)定(ding)(ding)功(gong)率的(de)(de)偏差應不超過下列規定(ding)(ding)的(de)(de)范(fan)圍(wei);對(dui)額(e)(e)定(ding)(ding)功(gong)率小于等(deng)于100W的(de)(de)元(yuan)件為:士(shi)10%。對(dui)額(e)(e)定(ding)(ding)功(gong)率大于100W的(de)(de)元(yuan)件為+5%~- 10%或10W,取兩者中(zhong)的(de)(de)較大值。

3.泄(xie)(xie)露(lu)電(dian)(dian)(dian)(dian)流冷態泄(xie)(xie)露(lu)電(dian)(dian)(dian)(dian)流以(yi)及水(shui)壓和(he)密封試(shi)驗(yan)后泄(xie)(xie)露(lu)電(dian)(dian)(dian)(dian)流應不(bu)超過0.5mA工(gong)作(zuo)溫(wen)度下(xia)的熱(re)態泄(xie)(xie)露(lu)電(dian)(dian)(dian)(dian)流應不(bu)超過公式(shi)中的計算(suan)值，但不(bu)超過5mA I=1/6 (tTX0.00001) I一 熱(re)態泄(xie)(xie)露(lu)電(dian)(dian)(dian)(dian)流mA t-發熱(re)長度mm T-工(gong)作(zuo)溫(wen)度C多個(ge)元件串聯到電(dian)(dian)(dian)(dian)源中時，應以(yi)這一組元件為 整體進行泄(xie)(xie)露(lu)電(dian)(dian)(dian)(dian)流試(shi)驗(yan)。

4. 絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)出廠檢驗時冷態絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)應不小(xiao)于50MQ密(mi)封試驗后(hou)，長(chang)期存放或者(zhe)使用后(hou)的(de)絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)應不消與MQ工(gong)作(zuo)(zuo)溫度(du)下的(de)熱(re)態絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)應不低于公式中的(de)計算值，但(dan)應不小(xiao)于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)MQ t一-發 熱(re)長(chang)度(du)mmT一工(gong)作(zuo)(zuo)溫度(du)°C

5.絕緣耐壓(ya)強度元件應在(zai)規定的試驗條件和試驗電壓(ya)下保(bao)持1min,而(er)無閃絡和擊穿現象

6.經受(shou)通斷電的能(neng)力元件(jian)應(ying)能(neng)在規定的試驗條(tiao)件(jian)下(xia)經歷2000次通斷電試驗，而不發生損(sun)壞