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低溫冷水機的自動保護和自動控制系統

2023-09-25

壓(ya)(ya)(ya)縮機(ji)(ji)吸入管采用(yong)低(di)壓(ya)(ya)(ya)保(bao)持(chi)器(qi)(qi)。當壓(ya)(ya)(ya)力(li)低(di)于設定值時(shi),低(di)壓(ya)(ya)(ya)控(kong)制(zhi)器(qi)(qi)切斷電路,當壓(ya)(ya)(ya)力(li)高于設定值時(shi),通電。低(di)壓(ya)(ya)(ya)控(kong)制(zhi)器(qi)(qi)可作為主動(dong)保(bao)險維修裝置,在蒸發壓(ya)(ya)(ya)力(li)過(guo)低(di)時(shi)防(fang)止(zhi)(zhi)冷卻液凍結,或(huo)在蒸汽(qi)接收壓(ya)(ya)(ya)力(li)過(guo)低(di)(通常導致故障)時(shi)防(fang)止(zhi)(zhi)壓(ya)(ya)(ya)縮機(ji)(ji)運行。該低(di)壓(ya)(ya)(ya)控(kong)制(zhi)器(qi)(qi)還(huan)可用(yong)于壓(ya)(ya)(ya)縮機(ji)(ji)的(de)有(you)(you)源能量調節。左邊有(you)(you)一個高壓(ya)(ya)(ya)力(li)保(bao)持(chi)器(qi)(qi),右邊有(you)(you)一個低(di)壓(ya)(ya)(ya)力(li)保(bao)持(chi)器(qi)(qi)。冷水(shui)(shui)機(ji)(ji)組(zu)是一種能提(ti)供恒(heng)溫、恒(heng)流、恒(heng)壓(ya)(ya)(ya)的(de)冷卻水(shui)(shui)設備(bei)。冷水(shui)(shui)機(ji)(ji)的(de)回水(shui)(shui)溫度不應高于攝(she)氏(shi)40度。回水(shui)(shui)溫度越(yue)高,對壓(ya)(ya)(ya)縮機(ji)(ji)的(de)損傷越(yue)大。

其(qi)工(gong)作原理是: 當高(gao)(gao)壓(ya)(ya)保持(chi)器工(gong)作異常時(微(wei)(wei)動(dong)(dong)(dong)開關上(shang)的(de)(de)接觸點關閉 a,c 形成通(tong)路(lu)) ,作用在傳(chuan)(chuan)動(dong)(dong)(dong)桿上(shang)的(de)(de)向下(xia)(xia)彈簧(huang)力(li)與向上(shang)的(de)(de)高(gao)(gao)壓(ya)(ya)蒸汽壓(ya)(ya)力(li)(從波(bo)紋管(guan)傳(chuan)(chuan)遞到傳(chuan)(chuan)動(dong)(dong)(dong)桿)和蝶(die)形彈簧(huang)的(de)(de)力(li)相平衡。當蒸汽壓(ya)(ya)力(li)增大(da)時,傳(chuan)(chuan)動(dong)(dong)(dong)桿向上(shang)移動(dong)(dong)(dong),蝶(die)形彈簧(huang)的(de)(de)彈性力(li)消失。如果壓(ya)(ya)力(li)超過彈簧(huang)力(li)的(de)(de)設(she)定值,傳(chuan)(chuan)動(dong)(dong)(dong)桿將按(an)下(xia)(xia)微(wei)(wei)動(dong)(dong)(dong)開關,a 和 c 將斷開,以結束壓(ya)(ya)縮機的(de)(de)運行; a。 B 輸入一個路(lu)徑,相應的(de)(de)入射信號燈(deng)或(huo)門鈴就在電路(lu)上(shang)。

當壓力(li)下(xia)降時,驅動桿向下(xia)移動以收緊蝶形彈簧(huang)。如果壓力(li)小于彈簧(huang)力(li)和蝶形彈簧(huang)力(li)的差值(zhi),微動開關(guan)就會發揮作用,a,c 就會變成(cheng)方向。作為(wei)奧雅納的高(gao)壓控(kong)制器(qi)