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　　用(yong)于(yu)供(gong)(gong)暖、空(kong)調(diao)冷熱水(shui)(shui)(shui)(shui)循(xun)環(huan)(huan)系(xi)(xi)(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)穩壓(ya)(ya)補(bu)(bu)充給水(shui)(shui)(shui)(shui)裝置，由膨(peng)脹(zhang)罐(guan)(guan)罐(guan)(guan)體、氣囊、氮氣、入水(shui)(shui)(shui)(shui)口(kou)組成的(de)(de)(de)(de)密閉(bi)(bi)式容(rong)器；它運(yun)用(yong)于(yu)供(gong)(gong)暖及空(kong)調(diao)水(shui)(shui)(shui)(shui)密閉(bi)(bi)系(xi)(xi)(xi)(xi)統(tong)(tong)中(zhong)吸收加熱時膨(peng)脹(zhang)的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)量，平(ping)衡(heng)系(xi)(xi)(xi)(xi)統(tong)(tong)水(shui)(shui)(shui)(shui)量及壓(ya)(ya)力(li)(li)；系(xi)(xi)(xi)(xi)統(tong)(tong)冷卻(que)時，預(yu)充氮氣的(de)(de)(de)(de)壓(ya)(ya)力(li)(li)將隔膜推到(dao)底部，系(xi)(xi)(xi)(xi)統(tong)(tong)水(shui)(shui)(shui)(shui)未(wei)進(jin)(jin)入膨(peng)脹(zhang)水(shui)(shui)(shui)(shui)罐(guan)(guan)，當系(xi)(xi)(xi)(xi)統(tong)(tong)水(shui)(shui)(shui)(shui)溫升高(gao)時，壓(ya)(ya)力(li)(li)增(zeng)大，水(shui)(shui)(shui)(shui)壓(ya)(ya)高(gao)于(yu)預(yu)充氮氣壓(ya)(ya)力(li)(li)，加熱膨(peng)脹(zhang)的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)量進(jin)(jin)入膨(peng)脹(zhang)罐(guan)(guan)。膨(peng)脹(zhang)罐(guan)(guan)用(yong)于(yu)閉(bi)(bi)式水(shui)(shui)(shui)(shui)循(xun)環(huan)(huan)系(xi)(xi)(xi)(xi)統(tong)(tong)中(zhong)，起到(dao)了(le)平(ping)衡(heng)水(shui)(shui)(shui)(shui)量及壓(ya)(ya)力(li)(li)的(de)(de)(de)(de)作(zuo)用(yong)，避免(mian)安(an)全閥(fa)頻(pin)繁(fan)(fan)開啟和自動補(bu)(bu)水(shui)(shui)(shui)(shui)閥(fa)頻(pin)繁(fan)(fan)補(bu)(bu)水(shui)(shui)(shui)(shui)。 氮氣定壓(ya)(ya)補(bu)(bu)水(shui)(shui)(shui)(shui)除氧閉(bi)(bi)式循(xun)環(huan)(huan)系(xi)(xi)(xi)(xi)統(tong)(tong)，膨(peng)脹(zhang)罐(guan)(guan)起到(dao)容(rong)納(na)膨(peng)脹(zhang)水(shui)(shui)(shui)(shui)的(de)(de)(de)(de)作(zuo)用(yong)外(wai)，還能起到(dao)補(bu)(bu)水(shui)(shui)(shui)(shui)箱的(de)(de)(de)(de)作(zuo)用(yong)，膨(peng)脹(zhang)罐(guan)(guan)充入氮氣，能夠獲得(de)較(jiao)大容(rong)積來容(rong)納(na)膨(peng)脹(zhang)水(shui)(shui)(shui)(shui)量，高(gao)、低壓(ya)(ya)膨(peng)脹(zhang)罐(guan)(guan)可利用(yong)本(ben)身壓(ya)(ya)力(li)(li)并聯向穩壓(ya)(ya)系(xi)(xi)(xi)(xi)統(tong)(tong)補(bu)(bu)水(shui)(shui)(shui)(shui)。本(ben)裝置各點(dian)控制(zhi)均為聯鎖反應，自動運(yun)行，壓(ya)(ya)力(li)(li)波動范圍小，安(an)全可靠，節能，經濟(ji)效果好。