防(fang)爆(bao)加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)是(shi)一種消(xiao)耗(hao)電(dian)(dian)能轉換為熱(re)(re)(re)(re)(re)(re)能，來對需加(jia)熱(re)(re)(re)(re)(re)(re)物料進行加(jia)熱(re)(re)(re)(re)(re)(re)。防(fang)爆(bao)加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)是(shi)由外(wai)到(dao)里外(wai)殼（不(bu)(bu)繡(xiu)鋼(gang)/碳(tan)(tan)鋼(gang)/銅(tong)/鈦材(cai)等、發(fa)熱(re)(re)(re)(re)(re)(re)絲(si)（鎳鉻鉛合金）、填充(chong)物（氧化鎂(mei)，作用(yong)是(shi)導熱(re)(re)(re)(re)(re)(re)、絕(jue)緣）、外(wai)殼（不(bu)(bu)繡(xiu)鋼(gang)、碳(tan)(tan)鋼(gang)、鈦材(cai)、銅(tong)  等）、陶瓷封頭（作用(yong)：絕(jue)緣）、防(fang)爆(bao)盒組成的(de)。加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)在工作中低溫流(liu)體介質(zhi)通(tong)過(guo)管(guan)(guan)道(dao)在壓力(li)作用(yong)下進入其輸(shu)入口，沿(yan)著電(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)(re)容器內部特定換熱(re)(re)(re)(re)(re)(re)流(liu)道(dao)，運用(yong)空氣電(dian)(dian)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)的(de)流(liu)體熱(re)(re)(re)(re)(re)(re)力(li)學原理(li)設(she)計的(de)路徑，帶走(zou)空氣加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)中的(de)電(dian)(dian)熱(re)(re)(re)(re)(re)(re)元件(jian)工作中所(suo)產生的(de)高(gao)溫熱(re)(re)(re)(re)(re)(re)能量，使空氣加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)被加(jia)熱(re)(re)(re)(re)(re)(re)介質(zhi)溫度升高(gao)，加(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)出口得到(dao)工藝(yi)要求的(de)高(gao)溫介質(zhi)。

產品特點

1.升溫時(shi)間在試(shi)(shi)驗電(dian)壓下，元件從環(huan)境溫度(du)升至試(shi)(shi)驗溫度(du)時(shi)間應(ying)不大于15min

2.額(e)(e)定(ding)功率(lv)(lv)偏差(cha)在充分發熱(re)的條件(jian)下，元件(jian)的額(e)(e)定(ding)功率(lv)(lv)的偏差(cha)應不超(chao)過下列規定(ding)的范圍;對額(e)(e)定(ding)功率(lv)(lv)小于(yu)等于(yu)100W的元件(jian)為:士10%。對額(e)(e)定(ding)功率(lv)(lv)大于(yu)100W的元件(jian)為+5%~- 10%或(huo)10W,取兩者中(zhong)的較大值。

3.泄(xie)露(lu)(lu)(lu)電(dian)(dian)(dian)流(liu)冷態(tai)泄(xie)露(lu)(lu)(lu)電(dian)(dian)(dian)流(liu)以及水壓和密封試(shi)驗后泄(xie)露(lu)(lu)(lu)電(dian)(dian)(dian)流(liu)應不超(chao)過0.5mA工(gong)作(zuo)溫(wen)(wen)度下的(de)熱(re)態(tai)泄(xie)露(lu)(lu)(lu)電(dian)(dian)(dian)流(liu)應不超(chao)過公(gong)式中的(de)計算值，但不超(chao)過5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態(tai)泄(xie)露(lu)(lu)(lu)電(dian)(dian)(dian)流(liu)mA t-發熱(re)長度mm T-工(gong)作(zuo)溫(wen)(wen)度C多(duo)個元(yuan)件串聯到電(dian)(dian)(dian)源中時(shi)，應以這(zhe)一(yi)組元(yuan)件為(wei) 整體進行(xing)泄(xie)露(lu)(lu)(lu)電(dian)(dian)(dian)流(liu)試(shi)驗。

4. 絕緣(yuan)電(dian)阻出廠檢(jian)驗時冷態絕緣(yuan)電(dian)阻應不(bu)(bu)小于50MQ密(mi)封試驗后(hou)，長期存(cun)放或者使用后(hou)的(de)絕緣(yuan)電(dian)阻應不(bu)(bu)消與MQ工作溫度下的(de)熱態絕緣(yuan)電(dian)阻應不(bu)(bu)低于公式中的(de)計(ji)算值(zhi)，但應不(bu)(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕緣(yuan)電(dian)阻MQ t一-發(fa) 熱長度mmT一工作溫度°C

5.絕緣(yuan)耐壓強度元件(jian)應(ying)在規定的試(shi)驗(yan)(yan)條(tiao)件(jian)和試(shi)驗(yan)(yan)電壓下保持1min,而無閃(shan)絡和擊穿現(xian)象

6.經(jing)受通(tong)斷電(dian)(dian)的(de)(de)能力(li)元件應能在(zai)規定的(de)(de)試驗條件下經(jing)歷2000次通(tong)斷電(dian)(dian)試驗，而不發生(sheng)損壞(huai)