制冷加熱循環裝置-50℃ ～ 250℃實驗室使用

制冷加熱循環裝置-50℃ ～ 250℃實驗室使用

　　1、循環系統：

　　反應(ying)釜冷凍加熱一體(ti)機的全(quan)密閉制冷加熱控溫系統(tong)與(yu)外接(jie)反應(ying)器(qi)(換(huan)熱(re)器)相連接，全密(mi)閉制冷加熱控溫系統中出油口與反應器(換熱器)的(de)下(xia)相連(lian)接，系統進油口與反應(ying)器(qi)(換熱器)的上出口相連接，使之構成一個(ge)密(mi)閉式循環(huan)系統。

　　反應(ying)釜冷凍(dong)加(jia)熱(re)(re)一體機(ji)系統(tong)中(zhong)(zhong)的(de)導熱(re)(re)油加(jia)注(zhu)：將導熱(re)(re)油加(jia)注(zhu)到(dao)膨(peng)脹(zhang)罐中(zhong)(zhong)，開啟(qi)排氣(qi)閥，打開循環泵，從膨(peng)脹(zhang)槽中(zhong)(zhong)抽導熱(re)(re)油到(dao)系統(tong)中(zhong)(zhong)，同時將系統(tong)中(zhong)(zhong)的(de)空(kong)(kong)氣(qi)排出，通過不(bu)斷(duan)的(de)加(jia)注(zhu)導熱(re)(re)油使(shi)系統(tong)中(zhong)(zhong)的(de)空(kong)(kong)氣(qi)不(bu)斷(duan)的(de)排出，直到(dao)系統(tong)中(zhong)(zhong)絕(jue)大部分(fen)的(de)空(kong)(kong)氣(qi)排出，關閉排氣(qi)閥。使(shi)構(gou)成一個不(bu)與空(kong)(kong)氣(qi)接觸的(de)循環系統(tong)。(排氣可能系統中(zhong)有少(shao)許殘留(liu)(liu)空(kong)氣，通過(guo)幾次升(sheng)降(jiang)溫過(guo)程會順著(zhu)膨脹過(guo)程將殘留(liu)(liu)空(kong)氣帶出)

　　2、制冷系統：

　　1)、當系(xi)統(tong)(tong)反(fan)饋信號顯示需要(yao)降(jiang)溫(wen)時，系(xi)統(tong)(tong)啟動循環泵和制(zhi)冷(leng)機，通(tong)過導熱介(jie)質與制(zhi)冷(leng)系(xi)統(tong)(tong)蒸發(fa)器中的制(zhi)冷(leng)劑進行換熱，從而系(xi)統(tong)(tong)降(jiang)溫(wen)。

　　2)、制冷(leng)系統工作：壓(ya)縮(suo)機壓(ya)縮(suo)一油分(fen)離(li)器(qi)(qi)—冷(leng)凝(ning)器(qi)(qi)冷(leng)凝(ning)一氣(qi)液分(fen)離(li)器(qi)(qi)—膨(peng)脹(zhang)閥—中(zhong)間換熱(re)器(qi)(qi)—氣(qi)液分(fen)離(li)器(qi)(qi)—膨(peng)脹(zhang)閥—中(zhong)間換熱(re)器(qi)(qi)—電子膨(peng)脹(zhang)閥—中(zhong)間換熱(re)器(qi)(qi)—氣(qi)液分(fen)離(li)器(qi)(qi)—回到壓(ya)縮(suo)機；

　　3、加熱系統

　　當(dang)系統反饋信號顯(xian)示需要升溫(wen)恒溫(wen)控(kong)制時，系統啟動循環泵和按需輸出加熱功率，使溫(wen)度控(kong)制在需要的范圍內。

　　反應(ying)釜冷(leng)(leng)(leng)凍加熱(re)一體機(ji)實際使用(yong)過(guo)(guo)(guo)程中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)采用(yong)不同的(de)型號，其通(tong)過(guo)(guo)(guo)壓(ya)縮機(ji)壓(ya)縮，進(jin)(jin)入(ru)油(you)分(fen)(fen)(fen)離(li)(li)器(qi)(qi)，然后(hou)在(zai)冷(leng)(leng)(leng)凝器(qi)(qi)內混(hun)合后(hou)進(jin)(jin)入(ru)氣(qi)(qi)(qi)(qi)液(ye)(ye)分(fen)(fen)(fen)離(li)(li)器(qi)(qi)內，液(ye)(ye)態(tai)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)進(jin)(jin)入(ru)膨脹閥(fa)，然后(hou)進(jin)(jin)入(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)間(jian)換(huan)熱(re)器(qi)(qi)，變(bian)成(cheng)氣(qi)(qi)(qi)(qi)態(tai)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)通(tong)過(guo)(guo)(guo)管路進(jin)(jin)入(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)間(jian)換(huan)熱(re)器(qi)(qi)，通(tong)過(guo)(guo)(guo)換(huan)熱(re)作用(yong)，換(huan)成(cheng)氣(qi)(qi)(qi)(qi)態(tai)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)進(jin)(jin)入(ru)氣(qi)(qi)(qi)(qi)液(ye)(ye)分(fen)(fen)(fen)離(li)(li)器(qi)(qi)內，而制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)液(ye)(ye)化(hua)，氣(qi)(qi)(qi)(qi)化(hua)，兩者同時(shi)進(jin)(jin)入(ru)氣(qi)(qi)(qi)(qi)液(ye)(ye)分(fen)(fen)(fen)離(li)(li)器(qi)(qi)，氣(qi)(qi)(qi)(qi)態(tai)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)進(jin)(jin)入(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)間(jian)換(huan)熱(re)器(qi)(qi)，液(ye)(ye)態(tai)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)進(jin)(jin)入(ru)膨脹閥(fa)后(hou)進(jin)(jin)入(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)間(jian)換(huan)熱(re)器(qi)(qi)，通(tong)過(guo)(guo)(guo)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)間(jian)換(huan)熱(re)器(qi)(qi)的(de)作用(yong)，液(ye)(ye)態(tai)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)進(jin)(jin)入(ru)電子膨脹閥(fa)后(hou)再進(jin)(jin)入(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)間(jian)換(huan)熱(re)器(qi)(qi)，而氣(qi)(qi)(qi)(qi)態(tai)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)進(jin)(jin)入(ru)氣(qi)(qi)(qi)(qi)液(ye)(ye)分(fen)(fen)(fen)離(li)(li)器(qi)(qi)；通(tong)過(guo)(guo)(guo)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)間(jian)換(huan)熱(re)器(qi)(qi)輸出所需溫(wen)度。

反應(ying)釜冷(leng)凍加熱一體機結(jie)構緊湊(cou)、合理(li)，操作與(yu)使用簡便(bian)，可(ke)以方便(bian)的(de)使制冷(leng)劑在高溫的(de)工(gong)況下線性降溫到低溫段，可(ke)靠性好，靈(ling)活(huo)。