防(fang)(fang)爆加熱(re)(re)(re)(re)管(guan)(guan)(guan)是(shi)一種消(xiao)耗(hao)電(dian)(dian)能(neng)轉換為熱(re)(re)(re)(re)能(neng)，來對需加熱(re)(re)(re)(re)物料進(jin)行(xing)加熱(re)(re)(re)(re)。防(fang)(fang)爆加熱(re)(re)(re)(re)管(guan)(guan)(guan)是(shi)由(you)外到里外殼（不繡鋼(gang)/碳鋼(gang)/銅/鈦(tai)材等(deng)(deng)、發(fa)熱(re)(re)(re)(re)絲（鎳鉻鉛合(he)金(jin)）、填充(chong)物（氧化鎂(mei)，作(zuo)用(yong)是(shi)導熱(re)(re)(re)(re)、絕緣(yuan)）、外殼（不繡鋼(gang)、碳鋼(gang)、鈦(tai)材、銅  等(deng)(deng)）、陶瓷封(feng)頭（作(zuo)用(yong)：絕緣(yuan)）、防(fang)(fang)爆盒(he)組成的(de)(de)(de)。加熱(re)(re)(re)(re)管(guan)(guan)(guan)在工(gong)作(zuo)中(zhong)低溫流(liu)體(ti)介(jie)質通(tong)過管(guan)(guan)(guan)道在壓力作(zuo)用(yong)下進(jin)入(ru)(ru)其輸入(ru)(ru)口，沿著電(dian)(dian)加熱(re)(re)(re)(re)容(rong)器內部特(te)定換熱(re)(re)(re)(re)流(liu)道，運用(yong)空氣(qi)電(dian)(dian)熱(re)(re)(re)(re)管(guan)(guan)(guan)的(de)(de)(de)流(liu)體(ti)熱(re)(re)(re)(re)力學原理(li)設計的(de)(de)(de)路(lu)徑，帶走(zou)空氣(qi)加熱(re)(re)(re)(re)管(guan)(guan)(guan)中(zhong)的(de)(de)(de)電(dian)(dian)熱(re)(re)(re)(re)元(yuan)件工(gong)作(zuo)中(zhong)所產(chan)生(sheng)的(de)(de)(de)高(gao)(gao)溫熱(re)(re)(re)(re)能(neng)量，使(shi)空氣(qi)加熱(re)(re)(re)(re)管(guan)(guan)(guan)被加熱(re)(re)(re)(re)介(jie)質溫度升高(gao)(gao)，加熱(re)(re)(re)(re)管(guan)(guan)(guan)出口得(de)到工(gong)藝要(yao)求的(de)(de)(de)高(gao)(gao)溫介(jie)質。

產(chan)品特點

1.升溫時間在試驗(yan)(yan)電壓下，元件(jian)從(cong)環境溫度升至試驗(yan)(yan)溫度時間應(ying)不大(da)于15min

2.額定(ding)(ding)功率偏(pian)差在充分發熱的條件下，元(yuan)件的額定(ding)(ding)功率的偏(pian)差應不超(chao)過下列規定(ding)(ding)的范(fan)圍(wei);對額定(ding)(ding)功率小于(yu)等于(yu)100W的元(yuan)件為:士10%。對額定(ding)(ding)功率大于(yu)100W的元(yuan)件為+5%~- 10%或10W,取兩者(zhe)中的較大值。

3.泄(xie)(xie)露(lu)電(dian)流(liu)冷態泄(xie)(xie)露(lu)電(dian)流(liu)以及水壓和密封試驗后泄(xie)(xie)露(lu)電(dian)流(liu)應不超(chao)過0.5mA工(gong)作溫度(du)(du)下(xia)的(de)熱態泄(xie)(xie)露(lu)電(dian)流(liu)應不超(chao)過公式中的(de)計算值(zhi)，但不超(chao)過5mA I=1/6 (tTX0.00001) I一(yi) 熱態泄(xie)(xie)露(lu)電(dian)流(liu)mA t-發熱長度(du)(du)mm T-工(gong)作溫度(du)(du)C多個元件(jian)串聯(lian)到電(dian)源中時，應以這一(yi)組元件(jian)為 整體進行泄(xie)(xie)露(lu)電(dian)流(liu)試驗。

4. 絕(jue)緣(yuan)(yuan)電(dian)阻出廠檢(jian)驗時冷(leng)態(tai)絕(jue)緣(yuan)(yuan)電(dian)阻應(ying)不(bu)小(xiao)(xiao)于(yu)50MQ密封(feng)試驗后，長期存放(fang)或者使用后的絕(jue)緣(yuan)(yuan)電(dian)阻應(ying)不(bu)消與(yu)MQ工作溫度(du)(du)(du)下的熱態(tai)絕(jue)緣(yuan)(yuan)電(dian)阻應(ying)不(bu)低(di)于(yu)公式中的計算值，但應(ying)不(bu)小(xiao)(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)絕(jue)緣(yuan)(yuan)電(dian)阻MQ t一(yi)-發 熱長度(du)(du)(du)mmT一(yi)工作溫度(du)(du)(du)°C

5.絕緣耐壓(ya)強(qiang)度元件應(ying)在規(gui)定的(de)試(shi)驗條(tiao)件和試(shi)驗電壓(ya)下保(bao)持1min,而無閃(shan)絡和擊穿(chuan)現(xian)象(xiang)

6.經(jing)受通斷(duan)電的(de)能力元件(jian)應能在規定(ding)的(de)試(shi)驗(yan)條件(jian)下經(jing)歷2000次通斷(duan)電試(shi)驗(yan)，而不發生損壞