一、緩沖罐的作用

緩沖罐主要用于(yu)各種(zhong)系統(tong)(tong)(tong)(tong)中(zhong)緩(huan)(huan)沖(chong)(chong)系統(tong)(tong)(tong)(tong)的(de)(de)壓(ya)(ya)(ya)力(li)波動(dong)，使系統(tong)(tong)(tong)(tong)工作更平(ping)穩。緩(huan)(huan)沖(chong)(chong)罐(guan)的(de)(de)緩(huan)(huan)沖(chong)(chong)性(xing)能(neng)主要通(tong)過壓(ya)(ya)(ya)縮罐(guan)內(nei)的(de)(de)壓(ya)(ya)(ya)縮空氣來實現。緩(huan)(huan)沖(chong)(chong)罐(guan)有隔膜式緩(huan)(huan)沖(chong)(chong)罐(guan)和氣囊式兩(liang)種(zhong)，被廣泛應用于(yu)中(zhong)央空調、鍋爐、熱(re)水(shui)器、變頻、恒壓(ya)(ya)(ya)供(gong)水(shui)設備中(zhong)，其(qi)緩(huan)(huan)沖(chong)(chong)系統(tong)(tong)(tong)(tong)壓(ya)(ya)(ya)力(li)波動(dong)，消除水(shui)錘(chui)起(qi)到(dao)穩壓(ya)(ya)(ya)卸荷(he)的(de)(de)作用，在(zai)系統(tong)(tong)(tong)(tong)內(nei)水(shui)壓(ya)(ya)(ya)輕微變化時(shi)，緩(huan)(huan)沖(chong)(chong)罐(guan)氣囊的(de)(de)自(zi)動(dong)膨脹收縮會對水(shui)壓(ya)(ya)(ya)的(de)(de)變化有一定(ding)緩(huan)(huan)沖(chong)(chong)作用，能(neng)保證系統(tong)(tong)(tong)(tong)的(de)(de)水(shui)壓(ya)(ya)(ya)穩定(ding)，水(shui)泵不會因壓(ya)(ya)(ya)力(li)的(de)(de)改變而頻繁(fan)的(de)(de)開啟。

二、緩沖罐的結構和工作原理

緩沖(chong)罐(guan)是利用液(ye)體(ti)的(de)壓(ya)縮(suo)性(xing)極小的(de)性(xing)質，用外(wai)力將(jiang)液(ye)體(ti)儲存在罐(guan)內(nei)，氣體(ti)受到(dao)壓(ya)縮(suo)壓(ya)力升高，當外(wai)力消失壓(ya)縮(suo)氣體(ti)膨脹可將(jiang)水排除。

緩沖罐主要由氣門蓋、充氣口、氣囊、碳鋼罐體、法蘭盤組成，當其連接到水系統上時，主要起一個蓄能器的作用，當系統水壓力大于緩沖罐碳鋼罐體于氣囊之間的氣壓力時，系統水會在系統壓力的作用下擠入緩沖罐氣囊內，這樣一(yi)是(shi)(shi)會(hui)壓(ya)縮罐體(ti)于氣(qi)(qi)囊之(zhi)間的(de)氣(qi)(qi)，使其體(ti)積減小，壓(ya)力增(zeng)大；罐體(ti)于氣(qi)(qi)囊之(zhi)間是(shi)(shi)出(chu)廠(chang)時預充(chong)的(de)氣(qi)(qi)，罐體(ti)外面(mian)為烤漆層(ceng)，進出(chu)水口直(zhi)接用三通(tong)或(huo)(huo)金屬軟管連接到系統(tong)，排(pai)氣(qi)(qi)閥接口可(ke)及(ji)時排(pai)出(chu)系統(tong)和氣(qi)(qi)囊內的(de)水溢(yi)(yi)出(chu)的(de)空氣(qi)(qi)，也可(ke)用閘閥直(zhi)接關死，以免水從頂(ding)部(bu)溢(yi)(yi)出(chu)，防塵帽下面(mian)是(shi)(shi)充(chong)/放氣(qi)(qi)口，可(ke)補充(chong)氣(qi)(qi)或(huo)(huo)放掉一(yi)部(bu)分氣(qi)(qi)體(ti)。二(er)是會增加系(xi)(xi)(xi)(xi)(xi)統(tong)整個水(shui)(shui)的(de)(de)容納空間(jian)(jian)，使系(xi)(xi)(xi)(xi)(xi)統(tong)壓(ya)力(li)(li)減小，直(zhi)到系(xi)(xi)(xi)(xi)(xi)統(tong)水(shui)(shui)的(de)(de)壓(ya)力(li)(li)和罐體于(yu)氣(qi)囊之間(jian)(jian)的(de)(de)氣(qi)壓(ya)力(li)(li)達到新的(de)(de)平衡才停(ting)止進(jin)水(shui)(shui)。當系(xi)(xi)(xi)(xi)(xi)統(tong)水(shui)(shui)壓(ya)力(li)(li)小于(yu)膨脹罐內氣(qi)體壓(ya)力(li)(li)時，氣(qi)囊內的(de)(de)水(shui)(shui)會在罐體于(yu)氣(qi)囊之間(jian)(jian)的(de)(de)氮氣(qi)的(de)(de)壓(ya)力(li)(li)作用下擠(ji)出(chu)，補(bu)回到系(xi)(xi)(xi)(xi)(xi)統(tong)，系(xi)(xi)(xi)(xi)(xi)統(tong)水(shui)(shui)容積減小壓(ya)力(li)(li)上升，罐體于(yu)氣(qi)囊之間(jian)(jian)的(de)(de)氣(qi)體積增大壓(ya)力(li)(li)下降，直(zhi)到兩者達到新的(de)(de)平衡，水(shui)(shui)停(ting)止從氣(qi)囊擠(ji)壓(ya)回系(xi)(xi)(xi)(xi)(xi)統(tong)，緩沖罐起(qi)到調節系(xi)(xi)(xi)(xi)(xi)統(tong)壓(ya)力(li)(li)波動的(de)(de)作用。