恒溫恒濕機主要的組成系統介紹

　　恒(heng)溫恒(heng)濕機主要(yao)是通過制冷系(xi)(xi)統(tong)，加熱系(xi)(xi)統(tong)，控制系(xi)(xi)統(tong)，濕度地圖，送(song)風循環(huan)系(xi)(xi)統(tong)以及傳感器系(xi)(xi)統(tong)組(zu)成(cheng)的(de)(de)，下(xia)面小編帶大家一(yi)(yi)起去了解一(yi)(yi)下(xia)的(de)(de)工作原理及過程。

　　1.恒溫恒濕機(ji)(ji)組(zu)之控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統：控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統是(shi)綜合試(shi)(shi)驗箱(xiang)的(de)核心，它決(jue)定了試(shi)(shi)驗機(ji)(ji)的(de)升溫速率，精(jing)度等重要指標。現(xian)在(zai)試(shi)(shi)驗機(ji)(ji)的(de)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)器大(da)都采(cai)用(yong)PID控(kong)(kong)(kong)制(zhi)(zhi)(zhi)，也有少部分采(cai)用(yong)PID與模糊控(kong)(kong)(kong)制(zhi)(zhi)(zhi)相組(zu)合的(de)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)方式(shi)。由于控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統基本上屬于軟件的(de)范疇(chou)，而且此部分在(zai)使(shi)用(yong)過程中，一般不(bu)會出(chu)現(xian)問題。

　　2.恒(heng)(heng)溫(wen)(wen)(wen)(wen)(wen)(wen)恒(heng)(heng)濕(shi)機(ji)(ji)組(zu)(zu)(zu)之制(zhi)(zhi)(zhi)冷(leng)(leng)系統(tong)(tong)：制(zhi)(zhi)(zhi)冷(leng)(leng)系統(tong)(tong)是(shi)(shi)恒(heng)(heng)溫(wen)(wen)(wen)(wen)(wen)(wen)恒(heng)(heng)濕(shi)機(ji)(ji)組(zu)(zu)(zu)的(de)(de)關鍵部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)之一。一般來說，制(zhi)(zhi)(zhi)冷(leng)(leng)方式(shi)(shi)(shi)都(dou)是(shi)(shi)機(ji)(ji)械制(zhi)(zhi)(zhi)冷(leng)(leng)以及輔助液氮(dan)制(zhi)(zhi)(zhi)冷(leng)(leng)，機(ji)(ji)械制(zhi)(zhi)(zhi)冷(leng)(leng)采用(yong)蒸(zheng)汽(qi)壓(ya)縮式(shi)(shi)(shi)制(zhi)(zhi)(zhi)冷(leng)(leng)，它們主(zhu)要由壓(ya)縮機(ji)(ji)，冷(leng)(leng)凝(ning)(ning)器，節流機(ji)(ji)構和(he)蒸(zheng)發(fa)器組(zu)(zu)(zu)成。如(ru)果我們試驗(yan)(yan)的(de)(de)溫(wen)(wen)(wen)(wen)(wen)(wen)度低(di)溫(wen)(wen)(wen)(wen)(wen)(wen)要達到-55℃，單(dan)級制(zhi)(zhi)(zhi)冷(leng)(leng)難以滿足要求，因此恒(heng)(heng)溫(wen)(wen)(wen)(wen)(wen)(wen)恒(heng)(heng)濕(shi)機(ji)(ji)組(zu)(zu)(zu)的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)方式(shi)(shi)(shi)一般采用(yong)復疊式(shi)(shi)(shi)制(zhi)(zhi)(zhi)冷(leng)(leng)。恒(heng)(heng)溫(wen)(wen)(wen)(wen)(wen)(wen)恒(heng)(heng)濕(shi)機(ji)(ji)組(zu)(zu)(zu)的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)系統(tong)(tong)由兩部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)組(zu)(zu)(zu)成，分(fen)(fen)別(bie)稱(cheng)為高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)和(he)低(di)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)，每一部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)是(shi)(shi)一個相對獨立的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)系統(tong)(tong)。高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)中制(zhi)(zhi)(zhi)冷(leng)(leng)劑(ji)的(de)(de)蒸(zheng)發(fa)吸(xi)收來自低(di)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)劑(ji)的(de)(de)熱量而汽(qi)化;低(di)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)制(zhi)(zhi)(zhi)冷(leng)(leng)劑(ji)的(de)(de)蒸(zheng)發(fa)則從被冷(leng)(leng)卻(que)的(de)(de)對象(試驗(yan)(yan)機(ji)(ji)內的(de)(de)空(kong)氣)吸(xi)熱以獲取冷(leng)(leng)量。高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)和(he)低(di)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)之間是(shi)(shi)用(yong)一個蒸(zheng)發(fa)冷(leng)(leng)凝(ning)(ning)器起來，它既(ji)是(shi)(shi)高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)的(de)(de)冷(leng)(leng)凝(ning)(ning)器，也是(shi)(shi)低(di)溫(wen)(wen)(wen)(wen)(wen)(wen)部(bu)(bu)(bu)(bu)(bu)分(fen)(fen)的(de)(de)冷(leng)(leng)凝(ning)(ning)器。

　　3.恒(heng)溫恒(heng)濕機(ji)(ji)組之加熱系(xi)統：加熱系(xi)統相對制冷系(xi)統而言，是比較(jiao)(jiao)簡(jian)單(dan)。它主(zhu)要有大功率(lv)電(dian)阻絲組成(cheng)，由于試驗要求的升溫速率(lv)較(jiao)(jiao)大，因此加熱系(xi)統功率(lv)都比較(jiao)(jiao)大，而且在試驗機(ji)(ji)的底板(ban)也設有加熱器。

　　4.恒(heng)溫恒(heng)濕(shi)(shi)機(ji)組之濕(shi)(shi)度系(xi)統：溫度系(xi)統分為加濕(shi)(shi)和除濕(shi)(shi)兩個子系(xi)統。