防爆(bao)(bao)加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)是(shi)一種消耗電(dian)能轉(zhuan)換為熱(re)(re)(re)(re)(re)能，來對(dui)需加(jia)(jia)熱(re)(re)(re)(re)(re)物料進(jin)行(xing)加(jia)(jia)熱(re)(re)(re)(re)(re)。防爆(bao)(bao)加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)是(shi)由外(wai)到(dao)里(li)外(wai)殼（不繡鋼/碳鋼/銅/鈦材等、發(fa)熱(re)(re)(re)(re)(re)絲（鎳鉻(ge)鉛(qian)合金）、填充物（氧(yang)化鎂，作用是(shi)導(dao)熱(re)(re)(re)(re)(re)、絕緣）、外(wai)殼（不繡鋼、碳鋼、鈦材、銅  等）、陶瓷封頭（作用：絕緣）、防爆(bao)(bao)盒組成的(de)(de)。加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)在工作中(zhong)低溫(wen)流(liu)體介質(zhi)(zhi)通(tong)過管(guan)(guan)(guan)(guan)道在壓力作用下(xia)進(jin)入(ru)其輸入(ru)口，沿著電(dian)加(jia)(jia)熱(re)(re)(re)(re)(re)容器(qi)內部特定換熱(re)(re)(re)(re)(re)流(liu)道，運用空氣(qi)(qi)電(dian)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)的(de)(de)流(liu)體熱(re)(re)(re)(re)(re)力學(xue)原理設(she)計的(de)(de)路徑，帶走空氣(qi)(qi)加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)中(zhong)的(de)(de)電(dian)熱(re)(re)(re)(re)(re)元件工作中(zhong)所產生(sheng)的(de)(de)高溫(wen)熱(re)(re)(re)(re)(re)能量，使空氣(qi)(qi)加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)被加(jia)(jia)熱(re)(re)(re)(re)(re)介質(zhi)(zhi)溫(wen)度升(sheng)高，加(jia)(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)出(chu)口得到(dao)工藝(yi)要求的(de)(de)高溫(wen)介質(zhi)(zhi)。

產品特點

1.升溫(wen)時(shi)間在試(shi)驗電(dian)壓下，元件從(cong)環境溫(wen)度(du)升至(zhi)試(shi)驗溫(wen)度(du)時(shi)間應不大(da)于15min

2.額(e)定(ding)功率(lv)偏差(cha)在充分發(fa)熱的條件(jian)下(xia)，元件(jian)的額(e)定(ding)功率(lv)的偏差(cha)應不超(chao)過下(xia)列(lie)規(gui)定(ding)的范圍;對額(e)定(ding)功率(lv)小于等于100W的元件(jian)為(wei):士10%。對額(e)定(ding)功率(lv)大(da)于100W的元件(jian)為(wei)+5%~- 10%或10W,取兩者中的較大(da)值。

3.泄(xie)(xie)露電(dian)(dian)流(liu)(liu)冷(leng)態(tai)泄(xie)(xie)露電(dian)(dian)流(liu)(liu)以及水壓和密封試驗(yan)(yan)后泄(xie)(xie)露電(dian)(dian)流(liu)(liu)應(ying)不超過0.5mA工(gong)作(zuo)溫度(du)下的(de)熱(re)態(tai)泄(xie)(xie)露電(dian)(dian)流(liu)(liu)應(ying)不超過公式中(zhong)的(de)計算值，但不超過5mA I=1/6 (tTX0.00001) I一(yi)(yi) 熱(re)態(tai)泄(xie)(xie)露電(dian)(dian)流(liu)(liu)mA t-發熱(re)長度(du)mm T-工(gong)作(zuo)溫度(du)C多個元件(jian)串聯到電(dian)(dian)源中(zhong)時(shi)，應(ying)以這一(yi)(yi)組元件(jian)為 整體進行泄(xie)(xie)露電(dian)(dian)流(liu)(liu)試驗(yan)(yan)。

4. 絕緣(yuan)電阻出廠檢驗(yan)時冷態(tai)(tai)絕緣(yuan)電阻應不小(xiao)于(yu)50MQ密封試驗(yan)后(hou)，長期存放或(huo)者使用(yong)后(hou)的絕緣(yuan)電阻應不消(xiao)與MQ工作(zuo)溫度下的熱(re)態(tai)(tai)絕緣(yuan)電阻應不低(di)于(yu)公式中的計(ji)算(suan)值，但應不小(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)(tai)絕緣(yuan)電阻MQ t一-發 熱(re)長度mmT一工作(zuo)溫度°C

5.絕緣耐壓強度元件(jian)(jian)應在(zai)規(gui)定的試驗(yan)條件(jian)(jian)和(he)試驗(yan)電壓下保持1min,而無(wu)閃絡和(he)擊穿現象

6.經受通(tong)斷電的能(neng)力元(yuan)件應(ying)能(neng)在規(gui)定(ding)的試(shi)驗條(tiao)件下(xia)經歷2000次通(tong)斷電試(shi)驗，而不發(fa)生損(sun)壞(huai)