水管道支吊架间距及流速计算

火力发电厂汽水管道设计技术规定59页3238572.52.53管道上一阶固有频率应大于3.5Hz，最大挠度值不应大于2.62mm273351按刚度条件DN2532x2.5DN2538x2.5DN5057x3Lmax水平直管支吊架最大允许间距(m)m2.552.763.33Et钢材20#在设计温度下20的弹性模数kN/mm^2198198198I管子截面惯性矩cm^42.544.4118.61q管道单位长度自重kN/m0.023920.030440.06043管重kg/m1.8192.1894水重kg/m0.5730.8552.043W管子截面抗弯矩cm^31.592.326.53按强度度条件水平直管道上支吊架最大允许间距(m)m3.613.884.61Et钢材20#在设计温度下100的弹性模数kN/mm^2183183Et钢材20#在设计温度下200的弹性模数kN/mm^2175175水平90度弯管两端支吊架间的管道展开长度，不应大于水平直管道上允许支吊架的最大间距的0.73倍4max2118.0qIELtqWL4336.0max76891081331592192733.54444.5676981100125150207259DN6576x3.5DN8089x4DN100108x4DN125133x4DN150159x4DN200219x6DN250273x73.804.114.444.825.236.116.7619819819819819819819852.5096.68176.96337.53652.272278.745177.310.099970.135380.181130.250020.348170.651740.986056.2588.38510.25912.7317.14631.5245.923.7395.1537.85412.27217.67133.65452.68513.8221.7332.7750.7682.05208.10379.295.215.625.976.326.817.938.70水平90度弯管两端支吊架间的管道展开长度，不应大于水平直管道上允许支吊架的最大间距的0.73倍火力发电厂汽水管道设计技术规定59页32382.52.5管道上一阶固有频率应大于3.5Hz，最大挠度值不应大于2.62mm2733按刚度条件DN2532x2.5DN2538x2.5Lmax水平直管支吊架最大允许间距(m)m1.912.13Et钢材20#在设计温度下150的弹性模数kN/mm^2179179I管子截面惯性矩cm^42.544.41q管道单位长度自重kN/m0.06880.0779管重kg/m1.8192.189水重kg/m0.5730.855保温厚mm7070保温外径mm172178保温体积mm^32243102423750496保温重kg/m4.494.75W管子截面抗弯矩cm^31.592.32按强度度条件水平直管道上支吊架最大允许间距(m)m2.132.42Et钢材20#在设计温度下100的弹性模数kN/mm^2183Et钢材20#在设计温度下200的弹性模数kN/mm^2175水平90度弯管两端支吊架间的管道展开长度，不应大于水平直管道上允许支吊架的最大间距的0.73倍4max2118.0qIELtqWL4336.0max455776891081331592192732.533.54444.56740516981100125150207259DN4045x2.5DN5057x3DN6576x3.5DN8089x4DN100108x4DN125133x4DN150159x4.5DN200219x6DN250273x72.352.763.283.613.964.354.785.706.361791791791791791791791791797.5618.6152.5096.68176.96337.53652.272278.745177.310.08930.11630.16420.20530.25940.33930.44890.77881.13692.6246.2588.38510.25912.7317.14631.5245.921.2572.0433.7395.1537.85412.27217.67133.65452.6857070707070707070701851972162292482732993594132528988027928824321071523496600839144336446421365035984863554568754298165.065.596.426.997.838.9310.0712.7115.093.366.5313.8221.7332.7750.7682.05208.10379.292.723.324.074.564.995.436.007.258.10183175水平90度弯管两端支吊架间的管道展开长度，不应大于水平直管道上允许支吊架的最大间距的0.73倍火力发电厂汽水管道设计技术规定59页32382.52.5管道上一阶固有频率应大于3.5Hz，最大挠度值不应大于2.62mm2733按刚度条件DN2532x2.5DN2538x2.5Lmax水平直管支吊架最大允许间距(m)m2.662.92Et钢材20#在设计温度下20的弹性模数kN/mm^2179179I管子截面惯性矩cm^42.544.41q管道单位长度自重kN/m0.018190.02189管重kg/m1.8192.189水重kg/m00W管子截面抗弯矩cm^31.592.32按强度度条件水平直管道上支吊架最大允许间距(m)m4.144.57Et钢材20#在设计温度下100的弹性模数kN/mm^2183Et钢材20#在设计温度下200的弹性模数kN/mm^2175水平90度弯管两端支吊架间的管道展开长度，不应大于水平直管道上允许支吊架的最大间距的0.73倍4max2118.0qIELtqWL4336.0max57768910813315921927333.54444.567516981100125150207259DN5057x3DN6576x3.5DN8089x4DN100108x4DN125133x4DN150159x4DN200219x6DN250273x73.604.174.514.995.566.087.147.9817917917917917917917917918.6152.5096.68176.96337.53652.272278.745177.310.040.062580.083850.102590.12730.171460.31520.459246.2588.38510.25912.7317.14631.5245.92000000006.5313.8221.7332.7750.7682.05208.10379.295.676.597.147.938.869.7011.4012.75183175水平90度弯管两端支吊架间的管道展开长度，不应大于水平直管道上允许支吊架的最大间距的0.73倍DN200150125规格219X6159X4.5133X4内径Dmm207150125面积Smm233653.5317671.4612271.85流量Qm3/h555555m3/s0.0150.0150.015流速vm/s0.450.861.24管重kg/m31.5217.1512.73水重kg/m33.65417.67112.272管加水kg/m65.17434.82125.002保温厚mm505050保温重量kg/m7.6065.9095.174管加水加保温kg/m72.7840.7330.18DN504032规格57X345X2.538X2.5内径Dmm514033面积Smm22042.821256.64855.30流量Qm3/h555555m3/s0.0150.0150.015流速vm/s7.4812.1617.86管重kg/m42.622.19水重kg/m2.0431.2570.855管加水kg/m6.0433.8773.045保温厚mm505050保温重量kg/m3.0252.6862.488管加水加保温kg/m9.076.565.53离心水泵入口流速　　　　0.5---1.5m/s离心水泵出口流速　　2---3m/s自流、溢流等无压排水管道　1m/s　4max2118.0qIELt1008065备注108X489X476X3.510081697853.985153.003739.285555360.0150.0150.0101.952.962.6710.268.386.267.8545.1533.73918.11413.5339.999硅酸铝纤维板180kg/m35050500.059kg/m24.4673.933.56322.5817.4613.5625201532X2.525X218X2252114490.87346.36153.945555550.0150.0150.01531.1244.1199.251.821.130.7890.4910.3460.1542.3111.4760.9435050500.050kg/m22.3192.1211.9234.633.602.87离心水泵入口流速　　　　0.5---1.5m/s离心水泵出口流速　　2---3m/s自流、溢流等无压排水管道　1m/s