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(fan)應釜冷凍(dong)加熱一體(ti)機的全密閉(bi)制冷加熱控溫系(xi)統(tong)與外(wai)接反(fan)應器(換熱器(qi))相連接(jie)，全密閉(bi)制冷加熱(re)控(kong)溫系統中出油口(kou)與(yu)反應器(換熱器(qi))的下相(xiang)連接(jie)，系(xi)統進油口與(yu)反應器(換熱器)的(de)上出口相連接，使之構成一個密閉式循環系統。

　　反應釜冷凍加(jia)熱(re)一(yi)體機系(xi)統中(zhong)(zhong)(zhong)的(de)導(dao)熱(re)油加(jia)注(zhu)(zhu)：將導(dao)熱(re)油加(jia)注(zhu)(zhu)到膨脹(zhang)罐中(zhong)(zhong)(zhong)，開啟排(pai)(pai)氣(qi)(qi)(qi)閥(fa)，打(da)開循環泵，從(cong)膨脹(zhang)槽中(zhong)(zhong)(zhong)抽導(dao)熱(re)油到系(xi)統中(zhong)(zhong)(zhong)，同時將系(xi)統中(zhong)(zhong)(zhong)的(de)空氣(qi)(qi)(qi)排(pai)(pai)出(chu)，通(tong)過(guo)不(bu)斷(duan)的(de)加(jia)注(zhu)(zhu)導(dao)熱(re)油使系(xi)統中(zhong)(zhong)(zhong)的(de)空氣(qi)(qi)(qi)不(bu)斷(duan)的(de)排(pai)(pai)出(chu)，直到系(xi)統中(zhong)(zhong)(zhong)絕大部分的(de)空氣(qi)(qi)(qi)排(pai)(pai)出(chu)，關閉排(pai)(pai)氣(qi)(qi)(qi)閥(fa)。使構成一(yi)個不(bu)與(yu)空氣(qi)(qi)(qi)接觸的(de)循環系(xi)統。(排氣(qi)可(ke)能(neng)系統中有少許殘留空氣(qi)，通過幾次升降(jiang)溫(wen)過程(cheng)會順著膨脹過程(cheng)將殘留空氣(qi)帶出)

　　2、制冷系統(tong)：

　　1)、當系統反饋信號顯示需要降溫時，系統啟動循環泵和制冷(leng)機，通過導(dao)熱介質與制冷(leng)系統蒸(zheng)發(fa)器中的制冷(leng)劑(ji)進行換(huan)熱，從而系統降溫。

　　2)、制冷(leng)系統(tong)工作(zuo)：壓(ya)縮(suo)機壓(ya)縮(suo)一油分(fen)離器(qi)(qi)—冷(leng)凝(ning)器(qi)(qi)冷(leng)凝(ning)一氣液分(fen)離器(qi)(qi)—膨(peng)(peng)脹閥(fa)(fa)—中(zhong)(zhong)(zhong)間換熱器(qi)(qi)—氣液分(fen)離器(qi)(qi)—膨(peng)(peng)脹閥(fa)(fa)—中(zhong)(zhong)(zhong)間換熱器(qi)(qi)—電子(zi)膨(peng)(peng)脹閥(fa)(fa)—中(zhong)(zhong)(zhong)間換熱器(qi)(qi)—氣液分(fen)離器(qi)(qi)—回到壓(ya)縮(suo)機；

　　3、加熱系統

　　當系統反饋信號顯示(shi)需(xu)要升(sheng)溫(wen)恒(heng)溫(wen)控(kong)制(zhi)時，系統啟(qi)動循環(huan)泵(beng)和按需(xu)輸出加熱功率(lv)，使(shi)溫(wen)度控(kong)制(zhi)在需(xu)要的范圍內(nei)。

　　反應釜冷(leng)(leng)凍加熱(re)(re)(re)(re)一體機(ji)實(shi)際使用過(guo)(guo)程中(zhong)，制冷(leng)(leng)劑(ji)采(cai)用不同的(de)型號(hao)，其(qi)通過(guo)(guo)壓(ya)縮機(ji)壓(ya)縮，進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)油(you)分(fen)離(li)(li)器(qi)(qi)(qi)(qi)(qi)(qi)，然(ran)后在(zai)冷(leng)(leng)凝(ning)器(qi)(qi)(qi)(qi)(qi)(qi)內(nei)混(hun)合(he)后進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)氣液分(fen)離(li)(li)器(qi)(qi)(qi)(qi)(qi)(qi)內(nei)，液態(tai)的(de)制冷(leng)(leng)劑(ji)進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)膨脹(zhang)閥，然(ran)后進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)中(zhong)間(jian)(jian)換熱(re)(re)(re)(re)器(qi)(qi)(qi)(qi)(qi)(qi)，變成(cheng)氣態(tai)的(de)制冷(leng)(leng)劑(ji)通過(guo)(guo)管路(lu)進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)中(zhong)間(jian)(jian)換熱(re)(re)(re)(re)器(qi)(qi)(qi)(qi)(qi)(qi)，通過(guo)(guo)換熱(re)(re)(re)(re)作(zuo)用，換成(cheng)氣態(tai)的(de)制冷(leng)(leng)劑(ji)進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)氣液分(fen)離(li)(li)器(qi)(qi)(qi)(qi)(qi)(qi)內(nei)，而(er)制冷(leng)(leng)劑(ji)液化，氣化，兩(liang)者同時進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)氣液分(fen)離(li)(li)器(qi)(qi)(qi)(qi)(qi)(qi)，氣態(tai)的(de)制冷(leng)(leng)劑(ji)進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)中(zhong)間(jian)(jian)換熱(re)(re)(re)(re)器(qi)(qi)(qi)(qi)(qi)(qi)，液態(tai)的(de)制冷(leng)(leng)劑(ji)進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)膨脹(zhang)閥后進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)中(zhong)間(jian)(jian)換熱(re)(re)(re)(re)器(qi)(qi)(qi)(qi)(qi)(qi)，通過(guo)(guo)中(zhong)間(jian)(jian)換熱(re)(re)(re)(re)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)作(zuo)用，液態(tai)的(de)制冷(leng)(leng)劑(ji)進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)電子膨脹(zhang)閥后再進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)中(zhong)間(jian)(jian)換熱(re)(re)(re)(re)器(qi)(qi)(qi)(qi)(qi)(qi)，而(er)氣態(tai)的(de)制冷(leng)(leng)劑(ji)進(jin)(jin)(jin)(jin)(jin)入(ru)(ru)(ru)(ru)氣液分(fen)離(li)(li)器(qi)(qi)(qi)(qi)(qi)(qi)；通過(guo)(guo)中(zhong)間(jian)(jian)換熱(re)(re)(re)(re)器(qi)(qi)(qi)(qi)(qi)(qi)輸出所需溫度。

反應釜(fu)冷凍加熱一(yi)體機結構緊湊(cou)、合理(li)，操作(zuo)與使用簡便，可(ke)以方便的使制冷劑在高(gao)溫的工(gong)況(kuang)下(xia)線性降(jiang)溫到低溫段，可(ke)靠性好，靈活。