给排水水力计算表格(建筑给排水)1

消火栓保护半径及栓口压力计算材质水枪弯曲折消火栓水带长45度水带口减系数保护半度Ld投影径C径 RH(mm)(m)(m)(m)喷口直径D(mm)水枪系充实水水枪实柱验系数数Hmafφ(m)衬胶帆布655065500.90.90.90.9252525258.16530.6658.16530.6658.16530.6658.16530.66519191919########################11.511.511.511.51.201.201.201.20消火栓给水系统水力计算计算管段设计秒流栓口最低计算管编号量qg压力径DN流速v(v/s)0.641.40.971.942.052.052.052.05每米沿程管段长度沿程水损累计沿程水损∑hy水损 iLi*L(kPa)0.0970.420.1230.480.530.530.530.53(m)4.24.7202121212121(kPa)0.411.982.4610.0811.1311.1311.1311.13(kPa)0.412.394.8514.93层高H(m)4.24.74.84.84.84.84.84.8(l/s)123456785.0210.9317.0834.1636.1636.1636.1636.16(kPa)19.0723.6830.36(mm)100100150150150150150150栓口总水压(m)40.48消防栓消火栓水流特喷嘴处喷嘴出水带阻水带水流量力系数头损失口的水口所需性系数水压头损失水压HHqqxhHdBAzxhHk(m)(m)(m)(mH2O)(L/s)1.57716.05.00.00171.082.0019.071.5771.5771.57716.016.016.05.05.05.00.00680.00430.0154.272.719.462.002.002.0022.2520.7027.45动水压力剩余压力(kPa)19.0723.6830.3637.6252.5068.4384.36100.29(kPa)0.004.6111.2918.5533.4349.3665.2981.22减压后的孔板孔径实际水压(kPa)(mm)25.2940.2856.2172.1438.1078.32109.24141.10