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How to calculate flow rate?

2009-02-19View Original

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Excuse me, 60 cubic meters per hour, what size pipe should I choose based on the natural flow rate? Is DN100 okay? How to calculate it? Could you please help me? Thank you. One more thing: the material medium is water, and the height of the water tank is about 1.5 meters. The pipes should be installed according to the natural flow rate of water. This post was last edited by lamb on 2009-2-24 08:54 ]
Reply #22009-02-19
What is the material? What is the so-called natural flow rate? The difference can be achieved for different materials, but there is a calculation formula: The volume or weight of fluid passing through a certain cross-section within a certain period of time is called flow rate. The unit of flow expressed by volume is L/s or (`m^3`/h) ; The flow unit expressed by weight is kg/s or t/h. When a fluid flows in a pipeline, the distance it flows within a certain period of time is the flow velocity. The flow velocity generally refers to the average flow velocity of the fluid, and the unit is m/s. The flow rate is directly proportional to the pipeline section and flow rate, and the relationship between the three: `Q = (∏ D^2)/ 4 · v · 3600 `(`m^3` / h ) where Q — flow rate (`m ^3` / h or t / h ) ; D — Pipe inner diameter (m) ; V — average fluid velocity (m/s).
Reply #32009-02-19
Q=u* A The flow rate can be found in the manual to find a suitable value.
Reply #42009-02-19
The full pipe is discharged horizontally. The pipe is made of steel. The pipe roughness is 0.013 in the normal state. The energy consumption per meter of liquid is 10MM/M. Check the chemical engineering calculation manual and it is about DN80. It is recommended to take DN100. According to the preliminary conclusion, the check pressure drop is only 5KPa/100. According to the original assumption, it can be up to 15KPa/100, so assuming that the calculation is passed, take DN100. 1 meter of water column is about 10KPA. 10 meters of water column is about 100KPA. This post was last edited by Albertlu on 2009-2-20 09:12 ]
Reply #52009-02-19
There should be relevant recommended flow rates. Determine the pipe diameter based on the flow rate.
Reply #62009-02-19
There should be relevant recommended flow rates. Determine the pipe diameter based on the flow rate. ----------------------------------------------- Use the pipe diameter to check the flow rate after you are done. If it is within the recommended range, it will be fine (because the pipe must be round).
Reply #72009-02-23
The flow rates of different media are different and are related to the medium and operating conditions. Please refer to the process design manual.
Reply #82015-04-17
have a look. . . . . . . . . . . . . .
Reply #92015-04-17
Please refer to the pipe diameter selection and pressure drop calculation chapters of HG/T20570

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