恒溫恒濕試驗箱有(you)五大系(xi)統(tong)(tong)：控制(zhi)系(xi)統(tong)(tong)、制(zhi)冷系(xi)統(tong)(tong)、加熱系(xi)統(tong)(tong)、加濕系(xi)統(tong)(tong)和除濕系(xi)統(tong)(tong)。今(jin)天我們來詳細的(de)(de)來說一(yi)下這幾(ji)大系(xi)統(tong)(tong)是如何(he)實現恒溫恒濕試驗箱功能的(de)(de)。

　　一(yi)、恒溫(wen)(wen)恒濕(shi)試(shi)驗箱(xiang)(xiang)(xiang)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系(xi)(xi)(xi)統跟我們家(jia)用(yong)電冰箱(xiang)(xiang)(xiang)的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系(xi)(xi)(xi)統是(shi)類似的(de)。開機后(hou)(hou)設(she)置好(hao)各溫(wen)(wen)、濕(shi)度(du)(du)參數(shu)，由控制(zhi)(zhi)(zhi)系(xi)(xi)(xi)統先(xian)檢(jian)測(ce)試(shi)驗箱(xiang)(xiang)(xiang)的(de)溫(wen)(wen)度(du)(du)，如果箱(xiang)(xiang)(xiang)體內的(de)濕(shi)度(du)(du)高于系(xi)(xi)(xi)統設(she)置溫(wen)(wen)度(du)(du)，恒溫(wen)(wen)恒濕(shi)試(shi)驗箱(xiang)(xiang)(xiang)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系(xi)(xi)(xi)統啟動，制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系(xi)(xi)(xi)統一(yi)般都是(shi)機械制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)輔以液氮制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)。這套系(xi)(xi)(xi)統主(zhu)要由壓(ya)縮(suo)機、冷(leng)(leng)(leng)凝(ning)器(qi)、蒸發器(qi)和節流(liu)裝置四(si)部(bu)份組成。高壓(ya)液態制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)制(zhi)(zhi)(zhi)經(jing)過(guo)濾器(qi)后(hou)(hou)，再經(jing)過(guo)膨(peng)脹節流(liu)閥降壓(ya)流(liu)入(ru)蒸發器(qi)當(dang)中(zhong)(zhong)。在蒸發器(qi)當(dang)中(zhong)(zhong)，制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)通過(guo)吸收空氣(qi)中(zhong)(zhong)的(de)熱(re)(re)量而(er)蒸發為氣(qi)體，氣(qi)態的(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)由壓(ya)縮(suo)機吸入(ru)后(hou)(hou)，形成高溫(wen)(wen)高壓(ya)的(de)氣(qi)體進入(ru)風冷(leng)(leng)(leng)冷(leng)(leng)(leng)凝(ning)器(qi)當(dang)中(zhong)(zhong)，經(jing)過(guo)熱(re)(re)傳導，熱(re)(re)量被冷(leng)(leng)(leng)凝(ning)器(qi)吸走，氣(qi)態制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)轉換成為高壓(ya)液體。如此反復循環，實現溫(wen)(wen)度(du)(du)降低。同(tong)時(shi)在整個試(shi)驗的(de)過(guo)程(cheng)當(dang)中(zhong)(zhong)，控制(zhi)(zhi)(zhi)系(xi)(xi)(xi)統不斷監測(ce)溫(wen)(wen)度(du)(du)，溫(wen)(wen)度(du)(du)達到指定溫(wen)(wen)度(du)(du)降溫(wen)(wen)系(xi)(xi)(xi)統停止工作，如果溫(wen)(wen)度(du)(du)超(chao)過(guo)指定溫(wen)(wen)度(du)(du)，降溫(wen)(wen)系(xi)(xi)(xi)統就會重復啟動。

　　二、恒(heng)溫恒(heng)濕(shi)試驗箱(xiang)的制熱(re)系統(tong)。首先還(huan)是(shi)由(you)控制系統(tong)對溫度(du)進(jin)行檢測。然后(hou)(hou)再與指定(ding)溫度(du)進(jin)行比對，如果沒有達到(dao)(dao)指定(ding)溫度(du)就會啟(qi)動加(jia)(jia)熱(re)系統(tong)進(jin)行工(gong)作。恒(heng)溫恒(heng)濕(shi)試驗箱(xiang)的加(jia)(jia)熱(re)方式是(shi)間接加(jia)(jia)熱(re)，先是(shi)啟(qi)動加(jia)(jia)熱(re)設備，加(jia)(jia)熱(re)設備把(ba)空氣(qi)溫度(du)升高，然后(hou)(hou)通過風(feng)機將熱(re)風(feng)送到(dao)(dao)試驗箱(xiang)工(gong)作室當(dang)中(zhong)。

　　三、恒溫恒濕試(shi)(shi)驗箱(xiang)的(de)加濕系(xi)(xi)統。首先試(shi)(shi)驗箱(xiang)啟動控制系(xi)(xi)統，進行比對。如果濕度(du)達不到(dao)(dao)設定(ding)的(de)標準就(jiu)啟動加濕系(xi)(xi)統。試(shi)(shi)驗箱(xiang)啟動電極加濕器，將(jiang)水(shui)加熱后形成水(shui)蒸氣，再通過風(feng)機將(jiang)蒸汽(qi)送到(dao)(dao)工作室(shi)當(dang)中，直到(dao)(dao)達到(dao)(dao)指定(ding)的(de)濕度(du)為(wei)止。

　　四、恒(heng)溫恒(heng)濕(shi)試(shi)驗(yan)箱的(de)除(chu)濕(shi)系統(tong)。控制(zhi)系統(tong)啟動監(jian)測(ce)濕(shi)度(du)水平，如果高于指定濕(shi)度(du)就會啟動除(chu)濕(shi)系統(tong)，將工作室(shi)內的(de)濕(shi)潤空(kong)氣(qi)抽到(dao)(dao)蒸(zheng)發(fa)器當中，經(jing)蒸(zheng)發(fa)器冷卻到(dao)(dao)露點以下(xia)，析出空(kong)氣(qi)中的(de)水分，達到(dao)(dao)除(chu)濕(shi)的(de)目的(de)。