【密閉式膨脹水箱原理簡介】

　　PZG型系列密閉式膨脹水箱的工作原理是利用密閉式膨脹水箱內的可壓縮氣體貯存、調節熱水系統，因受溫度變化而收縮或膨脹的水容量，密閉式膨脹水箱內安裝了隔膜，將罐內分為氣室和水室，當水溫提高時水容量增加，此時罐內氣體被壓縮，膨脹的水進入水室，水溫下降時水容量減少，氣體膨脹，水室的水進入系統管網，如管網有泄漏，使管網壓力值達不到設定管網壓力時，由水泵進行補充至設定壓力，達到了穩壓定壓的目的。

　　【密閉式膨脹水箱適用范圍】

　　1、高溫水連續供熱系統;

　　2、熱水站工業、民用連續供暖系統;

　　3、熱水高溫水循環作業系統;

　　4、風機盤管冷熱水系統。

【密閉式膨脹水箱技術參數】序號型 號設計壓力MPa總容積m3調節容積m3進出水口徑mm設備高度mm罐體直徑mm基礎直徑mm膨脹罐重量（Kg）1PZG – 400NL1.0-1.60.1250.0384012004003501502PZG– 600NL1.0-1.60.40.15401800600450250.13PZG– 800NL1.0-1.60.900.30502250800550325.74PZG– 1000NL1.0-1.61.370.456523501000700430.45PZG– 1200NL1.0-1.62.300.6980270012009008156PZG– 1400NL1.0-1.63.401.028032001400110011507PZG– 1600NL1.0-1.65.0341.578035001600125013678PZG– 1800NL1.0-1.67.062.1210035001800125018639PZG–2000NL1.0-1.69.422.851003800200016001318注：密閉式膨脹水箱工作壓力比按0.7計算　　　　　　　　　　 水的膨脹系數終溫t℃初溫t℃5101520253035300.00340.00320.00260.00170.0050350.00480.00460.00400.00310.00190.0005400.00660.00630.00570.00490.00370.00230.0006450.00840.00820.00750.00670.00550.00410.0025500.01040.01300.00990.00920.00820.00700.0055550.01260.01260.01210.01140.01040.00910.0078600.01500.01490.01450.01380.01280.01160.0102650.01760.01750.01710.01640.01540.01420.0127700.02030.02020.01980.01910.01810.01690.0154750.02320.02300.02260.02190.02090.01970.0183800.02620.02620.02570.02500.02400.02280.0214850.02930.02930.02890.02820.02720.02600.0246900.03630.03620.03580.03510.03410.03290.0314