通過控制高溫高低溫試驗箱的工作原理
瀏覽: 時間:2018.04.20 來源:東莞市恒工設備有限公司
高低(di)(di)溫(wen)(wen)(wen)試(shi)驗(yan)箱(xiang)(xiang)是主要通過(guo)控制(zhi)(zhi)(zhi)高溫(wen)(wen)(wen)、低(di)(di)溫(wen)(wen)(wen)和濕度來對產(chan)品進行檢測。在高低(di)(di)溫(wen)(wen)(wen)試(shi)驗(yan)箱(xiang)(xiang)的(de)內(nei)部(bu)結構上(shang)就有控制(zhi)(zhi)(zhi)相應(ying)環(huan)境溫(wen)(wen)(wen)度的(de)系(xi)統,分(fen)為制(zhi)(zhi)(zhi)冷劑(ji)循環(huan)系(xi)統、空氣循環(huan)系(xi)統和電氣控制(zhi)(zhi)(zhi)系(xi)統。他們(men)分(fen)別控制(zhi)(zhi)(zhi)高低(di)(di)溫(wen)(wen)(wen)試(shi)驗(yan)箱(xiang)(xiang)箱(xiang)(xiang)體內(nei)的(de)溫(wen)(wen)(wen)度、濕度和電氣。
制(zhi)冷(leng)(leng)(leng)(leng)工作原理是制(zhi)冷(leng)(leng)(leng)(leng)循(xun)環(huan)(huan)采用逆卡(ka)若循(xun)環(huan)(huan),通過兩(liang)個等溫(wen)(wen)(wen)(wen)(wen)(wen)過程(cheng)和(he)兩(liang)個絕熱(re)過程(cheng),完成循(xun)環(huan)(huan)制(zhi)冷(leng)(leng)(leng)(leng)。具體過程(cheng)如(ru)下:制(zhi)冷(leng)(leng)(leng)(leng)劑(ji)經(jing)壓(ya)縮機絕熱(re)壓(ya)縮到較(jiao)高的壓(ya)力,消耗了的功(gong)使排氣溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)升(sheng)高,之(zhi)后(hou)制(zhi)冷(leng)(leng)(leng)(leng)劑(ji)經(jing)冷(leng)(leng)(leng)(leng)凝器等溫(wen)(wen)(wen)(wen)(wen)(wen)地和(he)四(si)周介(jie)質進行熱(re)交換將熱(re)量(liang)傳給四(si)周介(jie)質。后(hou)制(zhi)冷(leng)(leng)(leng)(leng)劑(ji)經(jing)截流(liu)閥絕熱(re)膨脹做功(gong),這時制(zhi)冷(leng)(leng)(leng)(leng)劑(ji)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)降(jiang)低。最(zui)后(hou)制(zhi)冷(leng)(leng)(leng)(leng)劑(ji)通過蒸發器等溫(wen)(wen)(wen)(wen)(wen)(wen)地從溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)較(jiao)高的物體吸熱(re),使被冷(leng)(leng)(leng)(leng)卻物體溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)降(jiang)低。此(ci)循(xun)環(huan)(huan)周而復始從而達到降(jiang)溫(wen)(wen)(wen)(wen)(wen)(wen)的目的。
【高低溫試驗箱(xiang)廠家】結構特點:
1.高低溫試驗箱箱體采用(yong)(yong)數控機床加工(gong)成型,造型美觀(guan)大方(fang),并采用(yong)(yong)無(wu)反作用(yong)(yong)把手,操作簡便。
2.內箱采用(yong)進(jin)口高級不(bu)銹鋼(SUS304)鏡面(mian)板,外箱采用(yong)(SUS304)拉絲不(bu)銹鋼板或優質(zhi)冷軋鋼板噴塑,增加了外觀質(zhi)感和(he)潔凈度。
3.設(she)有大(da)型(xing)觀測(ce)視窗(chuang)附照明燈保持箱內明亮(liang),且(qie)利用發熱體(ti)內嵌(qian)式鋼(gang)化玻璃,隨時清(qing)晰的觀測(ce)箱內狀況。
4.箱體左側配直徑50mm的測(ce)試孔(kong),可供(gong)外接測(ce)試電源(yuan)線(xian)或信(xin)號線(xian)使用。
5.保溫(wen)材質采用(yong)高密度玻璃纖維棉(mian),厚度為80~100mm。門與箱體(ti)之間采用(yong)雙層耐高低溫(wen)之高張性密封條,以確(que)保測試(shi)區(qu)的密封。
東莞恒(heng)工設(she)備是從(cong)事恒(heng)溫(wen)恒(heng)濕試(shi)(shi)驗(yan)箱,步入式環境(jing)試(shi)(shi)驗(yan)室,快(kuai)速溫(wen)變試(shi)(shi)驗(yan)箱,冷(leng)熱沖擊試(shi)(shi)驗(yan)箱,高低溫(wen)低氣壓試(shi)(shi)驗(yan)箱等,業務聯系:潘先生