降(jiang)溫是恒(heng)(heng)溫恒(heng)(heng)濕箱(xiang)(xiang)重(zhong)要環節,也(ye)是判定一臺(tai)恒(heng)(heng)溫恒(heng)(heng)濕箱(xiang)(xiang)性能好壞重(zhong)要參數,它包括壓(ya)縮機(ji)(ji)、冷(leng)凝器(qi)(qi)、節流裝(zhuang)置、蒸(zheng)(zheng)發器(qi)(qi)等(deng)四大組成.壓(ya)縮機(ji)(ji)是制冷(leng)系(xi)統心臟,它吸入低溫低壓(ya)氣體(ti)(ti)(ti),變成高溫高壓(ya)氣體(ti)(ti)(ti),通過(guo)(guo)冷(leng)凝成液體(ti)(ti)(ti)放出熱(re)(re)量,通過(guo)(guo)風機(ji)(ji)帶走(zou)熱(re)(re)量,所以恒(heng)(heng)溫恒(heng)(heng)濕箱(xiang)(xiang)下面是熱(re)(re)風原因,然(ran)后通過(guo)(guo)節流到為低壓(ya)液體(ti)(ti)(ti),其次通過(guo)(guo)蒸(zheng)(zheng)發器(qi)(qi)成為低溫低壓(ya)氣體(ti)(ti)(ti)最后回到壓(ya)縮機(ji)(ji);制冷(leng)劑在(zai)蒸(zheng)(zheng)發器(qi)(qi)中(zhong)吸收(shou)(shou)熱(re)(re)量完(wan)成氣化過(guo)(guo)程重(zhong)而吸收(shou)(shou)熱(re)(re)量,達到制冷(leng)目的,來完(wan)成恒(heng)(heng)溫恒(heng)(heng)濕箱(xiang)(xiang)降(jiang)溫過(guo)(guo)程。