防爆加(jia)(jia)熱(re)管(guan)(guan)是(shi)一種消耗電(dian)能轉換為熱(re)能,來對需加(jia)(jia)熱(re)物(wu)料進行(xing)加(jia)(jia)熱(re)。防爆加(jia)(jia)熱(re)管(guan)(guan)是(shi)由(you)外(wai)到里外(wai)殼(ke)(不繡鋼(gang)(gang)(gang)/碳鋼(gang)(gang)(gang)/銅/鈦(tai)材等、發熱(re)絲(鎳鉻(ge)鉛合金)、填充物(wu)(氧化鎂,作(zuo)用(yong)是(shi)導熱(re)、絕(jue)(jue)緣)、外(wai)殼(ke)(不繡鋼(gang)(gang)(gang)、碳鋼(gang)(gang)(gang)、鈦(tai)材、銅 等)、陶瓷(ci)封頭(作(zuo)用(yong):絕(jue)(jue)緣)、防爆盒組成的(de)。加(jia)(jia)熱(re)管(guan)(guan)在工(gong)作(zuo)中(zhong)(zhong)低溫(wen)(wen)(wen)流體(ti)介質(zhi)通過(guo)管(guan)(guan)道在壓力(li)作(zuo)用(yong)下進入其輸入口(kou)(kou),沿(yan)著(zhu)電(dian)加(jia)(jia)熱(re)容(rong)器內部特(te)定(ding)換熱(re)流道,運(yun)用(yong)空氣(qi)電(dian)熱(re)管(guan)(guan)的(de)流體(ti)熱(re)力(li)學原理設計的(de)路徑,帶(dai)走空氣(qi)加(jia)(jia)熱(re)管(guan)(guan)中(zhong)(zhong)的(de)電(dian)熱(re)元件(jian)工(gong)作(zuo)中(zhong)(zhong)所產生的(de)高(gao)溫(wen)(wen)(wen)熱(re)能量,使空氣(qi)加(jia)(jia)熱(re)管(guan)(guan)被加(jia)(jia)熱(re)介質(zhi)溫(wen)(wen)(wen)度(du)升高(gao),加(jia)(jia)熱(re)管(guan)(guan)出口(kou)(kou)得到工(gong)藝要求的(de)高(gao)溫(wen)(wen)(wen)介質(zhi)。
產品特點
1.升溫(wen)時(shi)間(jian)(jian)在(zai)試驗(yan)電壓下,元件(jian)從環境溫(wen)度升至試驗(yan)溫(wen)度時(shi)間(jian)(jian)應不大于15min
2.額(e)(e)定(ding)(ding)功(gong)率(lv)偏差在充分(fen)發熱(re)的(de)(de)條件下(xia),元(yuan)(yuan)件的(de)(de)額(e)(e)定(ding)(ding)功(gong)率(lv)的(de)(de)偏差應不超過(guo)下(xia)列規定(ding)(ding)的(de)(de)范圍;對(dui)額(e)(e)定(ding)(ding)功(gong)率(lv)小于等于100W的(de)(de)元(yuan)(yuan)件為:士10%。對(dui)額(e)(e)定(ding)(ding)功(gong)率(lv)大(da)(da)于100W的(de)(de)元(yuan)(yuan)件為+5%~- 10%或10W,取兩者中的(de)(de)較大(da)(da)值。
3.泄(xie)(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)(liu)(liu)冷(leng)態泄(xie)(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)(liu)(liu)以(yi)及水壓和密封(feng)試驗(yan)后(hou)泄(xie)(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)(liu)(liu)應不超過(guo)0.5mA工作(zuo)溫(wen)度(du)(du)下的熱(re)(re)態泄(xie)(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)(liu)(liu)應不超過(guo)公(gong)式中的計(ji)算值,但不超過(guo)5mA I=1/6 (tTX0.00001) I一 熱(re)(re)態泄(xie)(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)(liu)(liu)mA t-發熱(re)(re)長度(du)(du)mm T-工作(zuo)溫(wen)度(du)(du)C多個元(yuan)件串(chuan)聯到電(dian)(dian)(dian)源中時,應以(yi)這一組元(yuan)件為 整體(ti)進行泄(xie)(xie)(xie)露(lu)(lu)電(dian)(dian)(dian)流(liu)(liu)(liu)試驗(yan)。
4. 絕緣電(dian)(dian)阻(zu)(zu)(zu)出廠檢(jian)驗(yan)時冷態(tai)絕緣電(dian)(dian)阻(zu)(zu)(zu)應不小于50MQ密封試驗(yan)后,長(chang)期存放或者使(shi)用后的絕緣電(dian)(dian)阻(zu)(zu)(zu)應不消與MQ工作(zuo)(zuo)溫度(du)(du)(du)下的熱(re)態(tai)絕緣電(dian)(dian)阻(zu)(zu)(zu)應不低于公式中的計算值(zhi),但(dan)應不小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態(tai)絕緣電(dian)(dian)阻(zu)(zu)(zu)MQ t一(yi)-發 熱(re)長(chang)度(du)(du)(du)mmT一(yi)工作(zuo)(zuo)溫度(du)(du)(du)°C
5.絕(jue)緣耐(nai)壓(ya)強度元件(jian)應在規定的試(shi)驗(yan)條件(jian)和(he)試(shi)驗(yan)電壓(ya)下保持1min,而無閃絡和(he)擊穿現象
6.經(jing)受(shou)通(tong)斷電的(de)能力(li)元件應能在規定的(de)試驗(yan)條(tiao)件下經(jing)歷2000次通(tong)斷電試驗(yan),而不(bu)發生損壞