1、已知条件流量QNmax：6000 m3/hQNcom：5000 m3/hQNmin：3000 m3/h工作温度t12OC工作压力P15 Kpa压力损失=1 Kpa管道内径D20357 mm管材线胀系数1.1160E-05 mm/mmOC辅助计算流量标尺上限Q206300 m3/h本地大气压Pa97.99 Kpa管道内径D356.9283mm气体压缩系数Z1绝对温度T1275.15 K绝对压力P1102.99 Kpa标况密度1.091 kg/m3工况密度1.1815kg/m3标况粘度0.0094 cp粘度系数1工况粘度0.0094 cp等熵指数1.24管道粗糙度K0.1000D/K3569工况流
2、量Qmax：5,817.2843m3/hQcom：4,616.8923m3/hQmin：2,770.1354m3/hReDmin345334.8813ReDcom575558.1356确定差压上限P2 Kpa圆整P2 KpaP2/P10.98060.75B4Pcom1.2598Kpa(a0B2)10.27750.280020.6458 B10.6482r01rRe1(a0B2)20.28000.280020.2815B20.64820.6482d231.3609Qcom：4616.93504,616.8923Dq0.0009%确确定定差差压压上上限限P2 Kpa孔孔板板开开孔孔直直径径d d2
3、0:231.41231.41 mmmm加加工工公公差差0.230.23mmmm最大压力损失1125Pa通常压力损失709Pa上游最小直管段5712mm下游最小直管段1250mm管管道道内内径径D20357 mm孔孔板板开开孔孔直直径径比比0.6482a00.6664528060.0390776680.6336096200.5960513000.5213088000.0067222610.6482000000.0298172998.8821000000.4540664000.2195073000.00302588817.2648400001.5901570000.616823100EK1.21.241.30.10.99120.99190.17650.990664240.9911309070.991364240.20.99050.9912E0.99111.7664380000.0469114400.00437504719.9792600001.0314390000.747840000
