Excel流量孔板计算软件

已知条件流量QNmax：6000m3/hQNcom：5000m3/hQNmin：3000m3/h工作温度t12OC工作压力P15Kpa压力损失=1Kpa管道内径D20357mm管材线胀系数1.1160E-05mm/mmOC辅助计算流量标尺上限Q206300m3/h本地大气压Pa97.99Kpa管道内径D356.9283mm气体压缩系数Z1绝对温度T1275.15K绝对压力P1102.99Kpa标况密度1.091kg/m3工况密度1.1815kg/m3标况粘度0.0094cp粘度系数1工况粘度0.0094cp等熵指数1.24管道粗糙度K0.1000D/K3569工况流量Qmax：5,817.2843m3/hQcom：4,616.8923m3/hQmin：2,770.1354m3/hReDmin345334.8813ReDcom575558.1356确定差压上限P2Kpa圆整P2KpaP2/P10.98060.75Pcom1.2598Kpa(a0B2)10.27750.280020.6458B10.6482r01rRe1B^4(a0B2)20.28000.280020.2815B20.6482d231.3609Qcom：4616.93504,616.8923Dq0.0009%确定差压上限P2Kpa孔板开孔直径d20:231.41mm加工公差0.23mm最大压力损失1125Pa通常压力损失709Pa5712mm1250mm管道内径D20357mm0.6482下游最小直管段孔板开孔直径比上游最小直管段a00.6664528060.0390776680.6336096200.5960513000.5213088000.0067222610.6482000000.0298172998.8821000000.4540664000.2195073000.00302588817.2648400001.5901570000.616823100EK1.21.241.30.10.99120.99190.17650.990664240.9911309070.991364240.20.99050.9912E0.9911EK1.7664380000.0469114400.00437504719.9792600001.0314390000.747840000