發表時間:2020-11-12 訪問量(liang):
恒(heng)溫(wen)恒(heng)濕試(shi)(shi)(shi)驗(yan)箱(xiang)(xiang)是集(ji)合了高(gao)溫(wen)、低溫(wen)、濕熱為一(yi)體的試(shi)(shi)(shi)驗(yan)箱(xiang)(xiang)—高(gao)低溫(wen)濕熱交(jiao)變試(shi)(shi)(shi)驗(yan)箱(xiang)(xiang),它(ta)的修理難度較其它(ta)環境試(shi)(shi)(shi)驗(yan)設備大,且具有(you)代表性。下面就高(gao)低溫(wen)濕熱交(jiao)變試(shi)(shi)(shi)驗(yan)箱(xiang)(xiang)為例(li),談一(yi)談恒(heng)溫(wen)恒(heng)濕試(shi)(shi)(shi)驗(yan)箱(xiang)(xiang)的構造及一(yi)些常見故障和(he)排除方(fang)法(fa)。
一、恒溫恒濕試驗箱的(de)構(gou)造
恒溫恒濕(shi)試驗箱(xiang)由箱(xiang)體、風(feng)循環系(xi)統(tong)(tong)、制(zhi)冷系(xi)統(tong)(tong)、加(jia)熱(re)系(xi)統(tong)(tong)和控(kong)濕(shi)系(xi)統(tong)(tong)組成。風(feng)循環系(xi)統(tong)(tong)一(yi)般采用可(ke)調節送風(feng)方(fang)(fang)向(xiang)的結(jie)構(gou);加(jia)濕(shi)系(xi)統(tong)(tong)有采用鍋爐加(jia)濕(shi)和表面(mian)蒸發二種(zhong);降溫、除濕(shi)系(xi)統(tong)(tong)采用空調工況制(zhi)冷結(jie)構(gou);加(jia)熱(re)系(xi)統(tong)(tong)采用電熱(re)鰭片加(jia)熱(re)和電爐絲直接加(jia)熱(re)二種(zhong)結(jie)構(gou);溫濕(shi)度測(ce)試方(fang)(fang)法采用干濕(shi)球(qiu)測(ce)試方(fang)(fang)法,也(ye)有用濕(shi)度傳感(gan)器直接測(ce)量(liang)方(fang)(fang)法;控(kong)制(zhi)和顯示(shi)操作界面(mian)采用溫濕(shi)度分開(kai)獨立和溫濕(shi)度組合控(kong)制(zhi)器等方(fang)(fang)式(shi)。






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