防爆加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)是一種消(xiao)耗電(dian)(dian)能轉換為(wei)熱(re)(re)(re)(re)(re)能，來對需加(jia)(jia)熱(re)(re)(re)(re)(re)物料進(jin)行加(jia)(jia)熱(re)(re)(re)(re)(re)。防爆加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)是由(you)外到里外殼（不繡鋼/碳鋼/銅/鈦材(cai)等、發熱(re)(re)(re)(re)(re)絲（鎳鉻鉛合金）、填充物（氧化鎂，作(zuo)用是導(dao)熱(re)(re)(re)(re)(re)、絕緣）、外殼（不繡鋼、碳鋼、鈦材(cai)、銅  等）、陶瓷封頭（作(zuo)用：絕緣）、防爆盒(he)組成的。加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)在工作(zuo)中(zhong)低(di)溫(wen)(wen)流(liu)體介質通過(guo)管(guan)(guan)(guan)道在壓(ya)力(li)作(zuo)用下進(jin)入其(qi)輸入口(kou)，沿著電(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)(re)容器內(nei)部特(te)定換熱(re)(re)(re)(re)(re)流(liu)道，運(yun)用空氣(qi)電(dian)(dian)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)的流(liu)體熱(re)(re)(re)(re)(re)力(li)學原理設計(ji)的路徑，帶走空氣(qi)加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)中(zhong)的電(dian)(dian)熱(re)(re)(re)(re)(re)元件工作(zuo)中(zhong)所產生(sheng)的高(gao)溫(wen)(wen)熱(re)(re)(re)(re)(re)能量，使(shi)空氣(qi)加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)被加(jia)(jia)熱(re)(re)(re)(re)(re)介質溫(wen)(wen)度升高(gao)，加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)出口(kou)得到工藝要求(qiu)的高(gao)溫(wen)(wen)介質。

產品特點

1.升溫時(shi)間在試(shi)驗(yan)電壓下(xia)，元件從環境溫度(du)升至試(shi)驗(yan)溫度(du)時(shi)間應(ying)不(bu)大于15min

2.額定(ding)功(gong)率偏(pian)差在充(chong)分(fen)發熱的(de)條件(jian)下，元件(jian)的(de)額定(ding)功(gong)率的(de)偏(pian)差應不超過下列規定(ding)的(de)范圍;對(dui)額定(ding)功(gong)率小(xiao)于等于100W的(de)元件(jian)為(wei)(wei):士10%。對(dui)額定(ding)功(gong)率大(da)于100W的(de)元件(jian)為(wei)(wei)+5%~- 10%或10W,取兩者中的(de)較大(da)值。

3.泄(xie)露(lu)(lu)電(dian)流冷態(tai)(tai)泄(xie)露(lu)(lu)電(dian)流以(yi)及水壓和密封(feng)試(shi)驗后泄(xie)露(lu)(lu)電(dian)流應(ying)不超過0.5mA工(gong)(gong)作(zuo)(zuo)溫(wen)度下的(de)熱(re)態(tai)(tai)泄(xie)露(lu)(lu)電(dian)流應(ying)不超過公式(shi)中(zhong)的(de)計(ji)算值，但不超過5mA I=1/6 (tTX0.00001) I一 熱(re)態(tai)(tai)泄(xie)露(lu)(lu)電(dian)流mA t-發(fa)熱(re)長度mm T-工(gong)(gong)作(zuo)(zuo)溫(wen)度C多個元(yuan)件串(chuan)聯到(dao)電(dian)源中(zhong)時，應(ying)以(yi)這一組元(yuan)件為 整體進行泄(xie)露(lu)(lu)電(dian)流試(shi)驗。

4. 絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)(dian)阻出廠(chang)檢驗時冷態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)(dian)阻應(ying)不(bu)(bu)小于(yu)50MQ密封試驗后，長(chang)(chang)期存放或者使用后的(de)(de)絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)(dian)阻應(ying)不(bu)(bu)消與MQ工作(zuo)溫度(du)下的(de)(de)熱態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)(dian)阻應(ying)不(bu)(bu)低于(yu)公(gong)式中的(de)(de)計算值，但(dan)應(ying)不(bu)(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)(tai)絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)(dian)阻MQ t一(yi)-發 熱長(chang)(chang)度(du)mmT一(yi)工作(zuo)溫度(du)°C

5.絕緣耐壓強度元件應(ying)在規定的試驗條件和試驗電壓下保持1min,而(er)無閃絡和擊(ji)穿(chuan)現(xian)象

6.經受通斷電(dian)的能力元件應能在規定的試驗(yan)條(tiao)件下(xia)經歷(li)2000次通斷電(dian)試驗(yan)，而不發生損(sun)壞