潔凈室烘箱

　　箱(xiang)體的溫度控(kong)(kong)(kong)(kong)(kong)制采用(yong)了智能電(dian)(dian)腦(nao)溫控(kong)(kong)(kong)(kong)(kong)和(he)PLC自(zi)控(kong)(kong)(kong)(kong)(kong)系統(tong)，溫度信(xin)號(hao)的采集用(yong)鉑(bo)電(dian)(dian)阻(zu)，經(jing)溫度控(kong)(kong)(kong)(kong)(kong)制器(qi)(qi)的放大(da)與設定(ding)值進行比較得到PID控(kong)(kong)(kong)(kong)(kong)制信(xin)號(hao)，同時(shi)PLC程(cheng)控(kong)(kong)(kong)(kong)(kong)器(qi)(qi)輸(shu)出控(kong)(kong)(kong)(kong)(kong)制信(xin)號(hao)控(kong)(kong)(kong)(kong)(kong)制固態(tai)繼(ji)電(dian)(dian)器(qi)(qi)SSR導通，固態(tai)繼(ji)電(dian)(dian)器(qi)(qi)再控(kong)(kong)(kong)(kong)(kong)制加(jia)(jia)熱器(qi)(qi)加(jia)(jia)熱，使(shi)箱(xiang)體處(chu)于(yu)(yu)升溫除濕(shi)階段。當溫度達到設定(ding)值時(shi)，溫控(kong)(kong)(kong)(kong)(kong)儀(yi)輸(shu)出PID控(kong)(kong)(kong)(kong)(kong)制信(xin)號(hao)PLC，PLC輸(shu)出控(kong)(kong)(kong)(kong)(kong)制信(xin)號(hao)給時(shi)間繼(ji)電(dian)(dian)器(qi)(qi)KT，使(shi)其開始保溫計時(shi)，同時(shi)，關閉進風機(ji)和(he)排風碟閥。通過(guo)PID控(kong)(kong)(kong)(kong)(kong)制電(dian)(dian)加(jia)(jia)熱不斷啟閉，箱(xiang)體處(chu)于(yu)(yu)熱風循環保溫滅菌階段。

當(dang)保(bao)溫(wen)(wen)(wen)滅菌時間達到(dao)設定值(zhi)(zhi)(zhi)時，時間繼(ji)電器輸(shu)(shu)出(chu)信(xin)(xin)(xin)(xin)號(hao)給(gei)PLC，PLC輸(shu)(shu)出(chu)全閉(bi)(bi)電加熱，開啟水(shui)冷卻電磁閥，使其吸(xi)合導(dao)通，從而(er)箱體(ti)處于(yu)冷卻降溫(wen)(wen)(wen)階段。當(dang)箱內(nei)溫(wen)(wen)(wen)度下降≤40℃時，溫(wen)(wen)(wen)控(kong)(kong)儀(yi)輸(shu)(shu)出(chu)控(kong)(kong)制信(xin)(xin)(xin)(xin)號(hao)給(gei)PLC，PLC輸(shu)(shu)出(chu)關(guan)閉(bi)(bi)熱風循環風機(ji)，干燥滅菌周期程(cheng)序(xu)結束。TEED一(yi)2001K超溫(wen)(wen)(wen)報(bao)(bao)(bao)警溫(wen)(wen)(wen)控(kong)(kong)儀(yi)輸(shu)(shu)出(chu)信(xin)(xin)(xin)(xin)號(hao)控(kong)(kong)制PLC整個程(cheng)序(xu)的運(yun)(yun)(yun)行，鉑(bo)電阻PT100測試(shi)信(xin)(xin)(xin)(xin)號(hao)至(zhi)報(bao)(bao)(bao)警溫(wen)(wen)(wen)控(kong)(kong)儀(yi)與(yu)超溫(wen)(wen)(wen)報(bao)(bao)(bao)警設置溫(wen)(wen)(wen)度值(zhi)(zhi)(zhi)進行比較，當(dang)實(shi)際溫(wen)(wen)(wen)度值(zhi)(zhi)(zhi)低于(yu)設定值(zhi)(zhi)(zhi)時，輸(shu)(shu)出(chu)控(kong)(kong)制信(xin)(xin)(xin)(xin)號(hao)給(gei)PLC，PLC程(cheng)序(xu)正常運(yun)(yun)(yun)行。當(dang)實(shi)際溫(wen)(wen)(wen)度值(zhi)(zhi)(zhi)超過設定值(zhi)(zhi)(zhi)時，輸(shu)(shu)出(chu)控(kong)(kong)制信(xin)(xin)(xin)(xin)號(hao)給(gei)PLC，PLC關(guan)閉(bi)(bi)運(yun)(yun)(yun)行程(cheng)序(xu)。故超溫(wen)(wen)(wen)報(bao)(bao)(bao)警的設置值(zhi)(zhi)(zhi)一(yi)般要高(gao)于(yu)工作溫(wen)(wen)(wen)度的設定值(zhi)(zhi)(zhi)。

潔凈室烘箱可(ke)滿足電子液晶顯(xian)示、醫藥、實驗(yan)室(shi)等(deng)生產(chan)及(ji)科研部門中凈化干燥的(de)要求。