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　　用(yong)(yong)于供暖(nuan)、空(kong)調冷熱(re)水(shui)(shui)(shui)循(xun)環系(xi)(xi)(xi)統(tong)的(de)穩(wen)壓(ya)(ya)(ya)(ya)補(bu)充(chong)給水(shui)(shui)(shui)裝置，由膨(peng)(peng)脹(zhang)(zhang)罐(guan)罐(guan)體、氣(qi)囊、氮(dan)氣(qi)、入水(shui)(shui)(shui)口組(zu)成(cheng)的(de)密閉式(shi)(shi)容器；它(ta)運用(yong)(yong)于供暖(nuan)及空(kong)調水(shui)(shui)(shui)密閉系(xi)(xi)(xi)統(tong)中(zhong)吸收加熱(re)時膨(peng)(peng)脹(zhang)(zhang)的(de)水(shui)(shui)(shui)量(liang)，平(ping)衡(heng)系(xi)(xi)(xi)統(tong)水(shui)(shui)(shui)量(liang)及壓(ya)(ya)(ya)(ya)力；系(xi)(xi)(xi)統(tong)冷卻時，預充(chong)氮(dan)氣(qi)的(de)壓(ya)(ya)(ya)(ya)力將隔(ge)膜推(tui)到(dao)(dao)底部，系(xi)(xi)(xi)統(tong)水(shui)(shui)(shui)未進入膨(peng)(peng)脹(zhang)(zhang)水(shui)(shui)(shui)罐(guan)，當(dang)系(xi)(xi)(xi)統(tong)水(shui)(shui)(shui)溫升高時，壓(ya)(ya)(ya)(ya)力增大(da)，水(shui)(shui)(shui)壓(ya)(ya)(ya)(ya)高于預充(chong)氮(dan)氣(qi)壓(ya)(ya)(ya)(ya)力，加熱(re)膨(peng)(peng)脹(zhang)(zhang)的(de)水(shui)(shui)(shui)量(liang)進入膨(peng)(peng)脹(zhang)(zhang)罐(guan)。膨(peng)(peng)脹(zhang)(zhang)罐(guan)用(yong)(yong)于閉式(shi)(shi)水(shui)(shui)(shui)循(xun)環系(xi)(xi)(xi)統(tong)中(zhong)，起到(dao)(dao)了平(ping)衡(heng)水(shui)(shui)(shui)量(liang)及壓(ya)(ya)(ya)(ya)力的(de)作(zuo)用(yong)(yong)，避免安(an)(an)全(quan)閥頻繁(fan)開啟和自動補(bu)水(shui)(shui)(shui)閥頻繁(fan)補(bu)水(shui)(shui)(shui)。 氮(dan)氣(qi)定壓(ya)(ya)(ya)(ya)補(bu)水(shui)(shui)(shui)除氧(yang)閉式(shi)(shi)循(xun)環系(xi)(xi)(xi)統(tong)，膨(peng)(peng)脹(zhang)(zhang)罐(guan)起到(dao)(dao)容納(na)膨(peng)(peng)脹(zhang)(zhang)水(shui)(shui)(shui)的(de)作(zuo)用(yong)(yong)外，還(huan)能起到(dao)(dao)補(bu)水(shui)(shui)(shui)箱的(de)作(zuo)用(yong)(yong)，膨(peng)(peng)脹(zhang)(zhang)罐(guan)充(chong)入氮(dan)氣(qi)，能夠獲得(de)較大(da)容積(ji)來容納(na)膨(peng)(peng)脹(zhang)(zhang)水(shui)(shui)(shui)量(liang)，高、低壓(ya)(ya)(ya)(ya)膨(peng)(peng)脹(zhang)(zhang)罐(guan)可(ke)利(li)用(yong)(yong)本身壓(ya)(ya)(ya)(ya)力并聯向穩(wen)壓(ya)(ya)(ya)(ya)系(xi)(xi)(xi)統(tong)補(bu)水(shui)(shui)(shui)。本裝置各(ge)點(dian)控制(zhi)均(jun)為(wei)聯鎖反(fan)應，自動運行，壓(ya)(ya)(ya)(ya)力波動范圍小，安(an)(an)全(quan)可(ke)靠，節能，經濟效果好。