防爆加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)是(shi)一種消耗電能(neng)轉換(huan)為熱(re)(re)(re)(re)(re)能(neng)，來對(dui)需加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)物(wu)料(liao)進行加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)。防爆加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)是(shi)由外到里(li)外殼（不(bu)繡(xiu)(xiu)鋼/碳(tan)鋼/銅/鈦材(cai)等(deng)、發(fa)熱(re)(re)(re)(re)(re)絲(si)（鎳鉻鉛合金）、填充(chong)物(wu)（氧化鎂，作用是(shi)導熱(re)(re)(re)(re)(re)、絕緣）、外殼（不(bu)繡(xiu)(xiu)鋼、碳(tan)鋼、鈦材(cai)、銅  等(deng)）、陶瓷封頭（作用：絕緣）、防爆盒(he)組成(cheng)的(de)(de)(de)(de)。加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)在(zai)工作中低溫流體介質(zhi)通過管(guan)道在(zai)壓力作用下進入(ru)其輸入(ru)口(kou)，沿著電加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)容器內(nei)部特定換(huan)熱(re)(re)(re)(re)(re)流道，運用空(kong)(kong)氣(qi)電熱(re)(re)(re)(re)(re)管(guan)的(de)(de)(de)(de)流體熱(re)(re)(re)(re)(re)力學(xue)原理(li)設計的(de)(de)(de)(de)路徑，帶走空(kong)(kong)氣(qi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)中的(de)(de)(de)(de)電熱(re)(re)(re)(re)(re)元件工作中所產生(sheng)的(de)(de)(de)(de)高溫熱(re)(re)(re)(re)(re)能(neng)量，使空(kong)(kong)氣(qi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)被(bei)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)介質(zhi)溫度升高，加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)出口(kou)得(de)到工藝要求的(de)(de)(de)(de)高溫介質(zhi)。

產品特點

1.升(sheng)溫時間在試(shi)驗電壓下，元(yuan)件從環境溫度(du)升(sheng)至(zhi)試(shi)驗溫度(du)時間應不大于15min

2.額定(ding)(ding)功(gong)率(lv)偏(pian)(pian)差(cha)(cha)在充(chong)分發熱的條(tiao)件下，元件的額定(ding)(ding)功(gong)率(lv)的偏(pian)(pian)差(cha)(cha)應不超過(guo)下列規定(ding)(ding)的范圍;對(dui)額定(ding)(ding)功(gong)率(lv)小(xiao)于(yu)等(deng)于(yu)100W的元件為(wei):士10%。對(dui)額定(ding)(ding)功(gong)率(lv)大于(yu)100W的元件為(wei)+5%~- 10%或10W,取兩(liang)者中的較大值。

3.泄(xie)露電(dian)(dian)(dian)(dian)流冷態泄(xie)露電(dian)(dian)(dian)(dian)流以(yi)及水(shui)壓和密封試(shi)驗后泄(xie)露電(dian)(dian)(dian)(dian)流應(ying)不超過0.5mA工(gong)作溫(wen)度(du)(du)下的熱態泄(xie)露電(dian)(dian)(dian)(dian)流應(ying)不超過公式中的計(ji)算值，但(dan)不超過5mA I=1/6 (tTX0.00001) I一(yi) 熱態泄(xie)露電(dian)(dian)(dian)(dian)流mA t-發熱長度(du)(du)mm T-工(gong)作溫(wen)度(du)(du)C多個元件(jian)串聯到電(dian)(dian)(dian)(dian)源中時，應(ying)以(yi)這一(yi)組元件(jian)為(wei) 整(zheng)體進行(xing)泄(xie)露電(dian)(dian)(dian)(dian)流試(shi)驗。

4. 絕(jue)(jue)緣(yuan)電(dian)阻出廠檢驗時冷(leng)態(tai)絕(jue)(jue)緣(yuan)電(dian)阻應不(bu)小(xiao)于50MQ密(mi)封試驗后，長期存放或者使用后的(de)絕(jue)(jue)緣(yuan)電(dian)阻應不(bu)消與MQ工作溫(wen)度(du)(du)下的(de)熱(re)態(tai)絕(jue)(jue)緣(yuan)電(dian)阻應不(bu)低于公式中的(de)計(ji)算(suan)值，但應不(bu)小(xiao)于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕(jue)(jue)緣(yuan)電(dian)阻MQ t一-發(fa) 熱(re)長度(du)(du)mmT一工作溫(wen)度(du)(du)°C

5.絕緣耐(nai)壓強度元件應在規定的試(shi)驗條件和試(shi)驗電壓下保(bao)持1min,而無閃(shan)絡和擊穿現象

6.經(jing)受通斷電的能力元件(jian)(jian)應能在規定的試(shi)(shi)驗條件(jian)(jian)下經(jing)歷(li)2000次通斷電試(shi)(shi)驗，而(er)不發生損壞