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　　用于(yu)供暖(nuan)、空調冷熱水(shui)(shui)(shui)循環系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)的(de)穩壓(ya)(ya)(ya)補(bu)充(chong)(chong)給水(shui)(shui)(shui)裝置(zhi)，由膨(peng)(peng)(peng)脹(zhang)(zhang)罐(guan)(guan)罐(guan)(guan)體、氣(qi)(qi)囊、氮(dan)(dan)氣(qi)(qi)、入水(shui)(shui)(shui)口(kou)組成的(de)密(mi)閉式容(rong)器；它運用于(yu)供暖(nuan)及空調水(shui)(shui)(shui)密(mi)閉系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)中吸收加熱時(shi)膨(peng)(peng)(peng)脹(zhang)(zhang)的(de)水(shui)(shui)(shui)量(liang)，平(ping)衡系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)水(shui)(shui)(shui)量(liang)及壓(ya)(ya)(ya)力(li)(li)；系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)冷卻時(shi)，預(yu)充(chong)(chong)氮(dan)(dan)氣(qi)(qi)的(de)壓(ya)(ya)(ya)力(li)(li)將(jiang)隔(ge)膜推(tui)到底部，系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)水(shui)(shui)(shui)未進入膨(peng)(peng)(peng)脹(zhang)(zhang)水(shui)(shui)(shui)罐(guan)(guan)，當系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)水(shui)(shui)(shui)溫升高時(shi)，壓(ya)(ya)(ya)力(li)(li)增大(da)，水(shui)(shui)(shui)壓(ya)(ya)(ya)高于(yu)預(yu)充(chong)(chong)氮(dan)(dan)氣(qi)(qi)壓(ya)(ya)(ya)力(li)(li)，加熱膨(peng)(peng)(peng)脹(zhang)(zhang)的(de)水(shui)(shui)(shui)量(liang)進入膨(peng)(peng)(peng)脹(zhang)(zhang)罐(guan)(guan)。膨(peng)(peng)(peng)脹(zhang)(zhang)罐(guan)(guan)用于(yu)閉式水(shui)(shui)(shui)循環系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)中，起(qi)(qi)到了平(ping)衡水(shui)(shui)(shui)量(liang)及壓(ya)(ya)(ya)力(li)(li)的(de)作(zuo)(zuo)用，避免安全閥頻繁(fan)開啟和(he)自動(dong)補(bu)水(shui)(shui)(shui)閥頻繁(fan)補(bu)水(shui)(shui)(shui)。 氮(dan)(dan)氣(qi)(qi)定壓(ya)(ya)(ya)補(bu)水(shui)(shui)(shui)除(chu)氧(yang)閉式循環系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)，膨(peng)(peng)(peng)脹(zhang)(zhang)罐(guan)(guan)起(qi)(qi)到容(rong)納(na)膨(peng)(peng)(peng)脹(zhang)(zhang)水(shui)(shui)(shui)的(de)作(zuo)(zuo)用外(wai)，還(huan)能(neng)起(qi)(qi)到補(bu)水(shui)(shui)(shui)箱的(de)作(zuo)(zuo)用，膨(peng)(peng)(peng)脹(zhang)(zhang)罐(guan)(guan)充(chong)(chong)入氮(dan)(dan)氣(qi)(qi)，能(neng)夠獲得較大(da)容(rong)積來容(rong)納(na)膨(peng)(peng)(peng)脹(zhang)(zhang)水(shui)(shui)(shui)量(liang)，高、低壓(ya)(ya)(ya)膨(peng)(peng)(peng)脹(zhang)(zhang)罐(guan)(guan)可利用本身壓(ya)(ya)(ya)力(li)(li)并聯向(xiang)穩壓(ya)(ya)(ya)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)補(bu)水(shui)(shui)(shui)。本裝置(zhi)各點控制(zhi)均為(wei)聯鎖反(fan)應，自動(dong)運行，壓(ya)(ya)(ya)力(li)(li)波動(dong)范(fan)圍(wei)小，安全可靠，節能(neng)，經濟效果好(hao)。