Pipeline flow velocity calculation
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This post was last edited by sunjl1981 on 2013-1-6 22:44. Dear experts: Given the parameters of the pump and the diameter of the pipeline, how can we roughly determine the maximum flow rate that can be transported through the pipeline? Thank you! ! ! # hcbbs
The maximum flow rate that a pipe can handle is determined by the flow rate of the pump; therefore, once the pump’s flow rate is known, it is possible to determine the pipe’s maximum flow capacity. Dividing this value by the cross-sectional area of the pipe gives the flow velocity within the pipe.
It seems the order given by the original poster is reversed. Once the pump is selected, the flow rate is determined; then the pipe diameter is chosen based on that flow rate
The flow rate passing through a cross-sectional area per unit of time is the velocity of flow. For example, if the flow rate in a pipe with a diameter of 80 is 200 m3/h, then the velocity is calculated as 200/40*40*3.14*0.00001*3600 = 11 m3/h
Given the parameters of the pump and the diameter of the pipe, how can one roughly determine the maximum flow rate that can be transported through the pipe? Look at the installation height of your pipeline, subtract the static head, and the remaining value can be roughly considered as the dynamic head. It came out.
Under conditions of fixed flow rate, the pipe diameter is calculated based on empirical values of flow velocity. The flow rate is determined by establishing a range of flow rates based on the properties of the liquid itself.
LZ probably wants to know the flow rate of the medium inside ordinary pipes. This information can be found in standard pipe design books; the flow rate requirements vary depending on the type of pipe material and the nature of the medium. From the question posed, it seems that the parameters of the pump and the dimensions of the pipes have already been determined, with only the flow rate remaining unknown.
Knowing the parameters of the pump, one can naturally determine the flow rate
The parameters of the pump have been determined, as well as the pipe diameters. When considering the maximum flow rate, it is also necessary to take into account the resistance within the pipes. This post was last edited by yzhms on 2009-4-13 at 15:36.]
First of all, the question posed by the original poster isn’t clearly stated. Are the pumps centrifugal pumps, diaphragm pumps, or piston pumps? Centrifugal pumps have an H-Q characteristic curve, and the pipeline characteristic curve is determined by operating conditions, installation height, valve opening degree, etc. The theoretical maximum flow rate for transportation can be determined by finding the operating point of the pump based on their intersection points.
The pump head accounts for pipeline resistance and height. Then calculate the flow rate based on the material and the substance.