防爆加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)是一種消耗(hao)電(dian)(dian)能轉換為熱(re)(re)(re)(re)(re)(re)能,來對需(xu)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)物料進行加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)。防爆加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)是由外到里(li)外殼(不(bu)繡鋼/碳鋼/銅/鈦材(cai)等(deng)、發熱(re)(re)(re)(re)(re)(re)絲(鎳鉻鉛合(he)金)、填充物(氧化鎂,作用是導熱(re)(re)(re)(re)(re)(re)、絕緣)、外殼(不(bu)繡鋼、碳鋼、鈦材(cai)、銅 等(deng))、陶瓷封頭(tou)(作用:絕緣)、防爆盒組成的。加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)在工(gong)作中(zhong)低溫(wen)流體(ti)(ti)介質通過管(guan)(guan)(guan)(guan)(guan)道(dao)在壓力(li)作用下進入(ru)其輸(shu)入(ru)口,沿(yan)著(zhu)電(dian)(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)容(rong)器內部特定換熱(re)(re)(re)(re)(re)(re)流道(dao),運用空氣(qi)電(dian)(dian)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)的流體(ti)(ti)熱(re)(re)(re)(re)(re)(re)力(li)學原理設計(ji)的路徑,帶走空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)中(zhong)的電(dian)(dian)熱(re)(re)(re)(re)(re)(re)元件工(gong)作中(zhong)所產生的高溫(wen)熱(re)(re)(re)(re)(re)(re)能量,使(shi)空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)被(bei)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)介質溫(wen)度升高,加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)出口得到工(gong)藝要求的高溫(wen)介質。
產品特(te)點
1.升(sheng)溫時(shi)間在試(shi)驗電(dian)壓下,元(yuan)件從環境溫度(du)升(sheng)至試(shi)驗溫度(du)時(shi)間應不大于15min
2.額(e)定(ding)(ding)功(gong)率(lv)偏差在充分發熱(re)的(de)(de)(de)條件(jian)下,元件(jian)的(de)(de)(de)額(e)定(ding)(ding)功(gong)率(lv)的(de)(de)(de)偏差應不超(chao)過下列規定(ding)(ding)的(de)(de)(de)范圍;對(dui)額(e)定(ding)(ding)功(gong)率(lv)小于(yu)等(deng)于(yu)100W的(de)(de)(de)元件(jian)為:士10%。對(dui)額(e)定(ding)(ding)功(gong)率(lv)大(da)于(yu)100W的(de)(de)(de)元件(jian)為+5%~- 10%或10W,取兩者(zhe)中的(de)(de)(de)較大(da)值(zhi)。
3.泄(xie)(xie)露電(dian)(dian)流冷態泄(xie)(xie)露電(dian)(dian)流以(yi)(yi)及水壓和密(mi)封試(shi)驗后泄(xie)(xie)露電(dian)(dian)流應不(bu)超(chao)過0.5mA工作(zuo)溫度(du)(du)下的(de)熱態泄(xie)(xie)露電(dian)(dian)流應不(bu)超(chao)過公式(shi)中的(de)計算值(zhi),但不(bu)超(chao)過5mA I=1/6 (tTX0.00001) I一(yi)(yi) 熱態泄(xie)(xie)露電(dian)(dian)流mA t-發熱長度(du)(du)mm T-工作(zuo)溫度(du)(du)C多個元件(jian)串聯到電(dian)(dian)源中時,應以(yi)(yi)這一(yi)(yi)組元件(jian)為(wei) 整體進行泄(xie)(xie)露電(dian)(dian)流試(shi)驗。
4. 絕(jue)緣電(dian)(dian)阻(zu)(zu)出廠檢驗(yan)時(shi)冷(leng)態絕(jue)緣電(dian)(dian)阻(zu)(zu)應不(bu)小(xiao)于(yu)50MQ密封(feng)試(shi)驗(yan)后(hou),長期存放或者使(shi)用(yong)后(hou)的(de)絕(jue)緣電(dian)(dian)阻(zu)(zu)應不(bu)消(xiao)與MQ工作溫(wen)度下的(de)熱(re)態絕(jue)緣電(dian)(dian)阻(zu)(zu)應不(bu)低于(yu)公式中的(de)計算(suan)值(zhi),但(dan)應不(bu)小(xiao)于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕(jue)緣電(dian)(dian)阻(zu)(zu)MQ t一(yi)-發 熱(re)長度mmT一(yi)工作溫(wen)度°C
5.絕緣耐壓強(qiang)度元件應在規定的試(shi)驗(yan)條件和試(shi)驗(yan)電壓下保持1min,而無閃絡和擊(ji)穿現象
6.經受通斷電的(de)能力元件應能在(zai)規定的(de)試驗條件下經歷2000次通斷電試驗,而不(bu)發生損(sun)壞