管道水流量的近似计算公式为Q=2D~2式中D为管径,以时为单位代入在推导给水管道流量简化公式中,取经济流速为1米/秒,对于大管径和小管径的管道均适合。例如当D=1″时 Q=2×1~2=2米~3/时当D=1(1″/2)时Q=2×1.5~2=4.5米~3/时当D=2″时 Q=2×2~2=8米~3/时实践证明,应用这一简化公式求得的结果是符 The approximate calculation formula of pipeline water flow is Q = 2D ~ 2, where D is the pipe diameter, and is substituted into the simplification formula of the flow rate of the water supply pipe in units of hours, taking the economic flow rate as 1 m / s, for large pipe diameter and small pipe The diameter of the pipe are suitable. For example, when D = 1 “, Q = 2 × 1 to 2 = 2 m to 3 / when Q = 2 × 1.5 to 2 = 4.5 to 3 / D when D = 1 ”When Q = 2 × 2 ~ 2 = 8 m ~ 3 / hour Practice has proved that the application of this simplified formula to find the result is Fu