[恒溫恒濕試驗箱]恒溫恒濕試驗箱降溫速度過慢的原因分析
[恒溫恒濕試驗箱]恒溫恒濕試(shi)驗箱降(jiang)溫速(su)度過慢(man)的原因分析
恒(heng)(heng)溫(wen)(wen)恒(heng)(heng)濕試(shi)驗(yan)箱作(zuo)(zuo)為(wei)一款溫(wen)(wen)度和濕度模(mo)仿箱,不(bu)可避(bi)免的(de)會涉及到升(sheng)溫(wen)(wen)文(wen)降(jiang)溫(wen)(wen)速(su)度的(de)疑問。不(bu)論升(sheng)溫(wen)(wen)文(wen)降(jiang)溫(wen)(wen),其速(su)率都(dou)有一個根本規范,過(guo)快或(huo)過(guo)慢都(dou)歸于設(she)備異(yi)常現象(xiang)!通(tong)常狀(zhuang)況下(xia),恒(heng)(heng)溫(wen)(wen)恒(heng)(heng)濕試(shi)驗(yan)箱是(shi)會依照設(she)定的(de)時(shi)刻規模(mo),降(jiang)溫(wen)(wen)到相應值,可是(shi)因(yin)為(wei)設(she)備使用時(shi)刻過(guo)長,或(huo)許操作(zuo)(zuo)不(bu)妥,會引起恒(heng)(heng)溫(wen)(wen)恒(heng)(heng)濕試(shi)驗(yan)箱降(jiang)溫(wen)(wen)緩慢的(de)狀(zhuang)況,下(xia)面為(wei)大家(jia)分享下(xia)幾點(dian)原因(yin):
1、溫度堅(jian)持不(bu)住(zhu),調查制(zhi)冷壓縮機在(zai)實驗箱運轉過(guo)程(cheng)中是不(bu)是可以(yi)(yi)發動(dong),壓縮機在(zai)環境(jing)實驗設(she)備運轉過(guo)程(cheng)中都可以(yi)(yi)發動(dong),闡明從(cong)主電源到各壓縮機的電器線路正常,電器系(xi)統方面也沒有疑問(wen)。
2、電氣系統的(de)問(wen)題,持續查看(kan)制(zhi)冷(leng)(leng)系統。首先(xian)查看(kan)兩組制(zhi)冷(leng)(leng)機組的(de)低溫(wen)(R23)級壓(ya)縮機的(de)排氣和吸氣壓(ya)力都較正常值偏低,并且吸氣壓(ya)力呈抽暇狀況,闡明主制(zhi)冷(leng)(leng)機組的(de)制(zhi)冷(leng)(leng)劑量(liang)不足。
3、用手(shou)摸主(zhu)機(ji)組R23壓縮機(ji)的排氣(qi)(qi)(qi)和吸氣(qi)(qi)(qi)管(guan)(guan)路(lu),發現(xian)排氣(qi)(qi)(qi)管(guan)(guan)路(lu)的溫(wen)度不(bu)高,吸氣(qi)(qi)(qi)管(guan)(guan)路(lu)的溫(wen)度也(ye)不(bu)低(未結霜(shuang)),這也(ye)闡明晰主(zhu)機(ji)組的R23制冷劑缺少。
4、未(wei)確定故(gu)障原(yuan)因,假如實(shi)驗(yan)箱有(you)兩(liang)組(zu)(zu)主(zhu)機組(zu)(zu),因為降溫(wen)(wen)(wen)過程中,兩(liang)機組(zu)(zu)一起作(zuo)業(ye),故(gu)沒有(you)溫(wen)(wen)(wen)度(du)安穩不住(zhu)的現象,而指示降溫(wen)(wen)(wen)速率(lv)下降。在溫(wen)(wen)(wen)度(du)堅(jian)持階段(duan),一旦(dan)輔佐機組(zu)(zu)停(ting)止(zhi)作(zuo)業(ye),主(zhu)機組(zu)(zu)又(you)無制冷效果,實(shi)驗(yan)箱內的空氣就(jiu)會緩慢(man)上(shang)升(sheng),當(dang)溫(wen)(wen)(wen)度(du)上(shang)升(sheng)到必定程度(du),控制系統就(jiu)會發動(dong)輔佐機組(zu)(zu)來降溫(wen)(wen)(wen),將溫(wen)(wen)(wen)度(du)下降至設(she)定值(-55℃)鄰近,然后輔佐機組(zu)(zu)又(you)停(ting)止(zhi)作(zuo)業(ye),如此重復,便會出現恒溫(wen)(wen)(wen)恒濕試驗(yan)箱降溫(wen)(wen)(wen)緩慢(man)的狀況。
上述現象,無(wu)論哪種現象,都(dou)不可自行(xing)拆(chai)卸恒(heng)(heng)溫恒(heng)(heng)濕設備,出現重大故障第一時間要與生產廠家(jia)保持聯(lian)系,詢問具體原(yuan)因方可進行(xing)操作,或(huo)由廠家(jia)相關專業人員檢(jian)測(ce)維修。
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