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Help me calculate it

2007-12-07View Original

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For water with a flow rate of 3 tons per hour, assuming a flow speed of 1.5 m/sec, would the pipe diameter need to be 2.6 cm? Considering that the actual flow speed might be higher than 1.5 m/sec, would a DN25 pipe be more appropriate? ? ? I haven’t done the calculations in this area, so I’m not sure if my calculations are correct ? ? I am working on pipelines for the recycling of continuously flowing water to prevent freezing in winter. Considering both investment and returns, the inner diameter of a DN25 pipe should be around 28 mm. Additionally, the actual flow speed of the water needs to be greater than 1.5 m/sec; so is it acceptable to use a DN25 pipe? ? ? This post was last edited by ntsdn on 2007-12-8 08:45]
Reply #22007-12-07
If you know the flow rate, how can you still not be able to calculate it? It’s possible; let me ask you where that flow rate comes from
Reply #32007-12-07
Isn’t the flow rate usually set at 1.5~2.5 m/sec? ? ? Is this the method used for pipeline design everywhere? ? ?
Reply #42007-12-07
Why do few people pay attention to new users’ posts? ? ?
Reply #52007-12-07
Check the economic flow velocity for other fluids
Reply #62007-12-07
We’ll need to calculate it again later, right?:lol
Reply #72007-12-07
The recommended flow rate for water is 1.5 m/s to 3 m/s; any value within this range is acceptable
Reply #82007-12-07
The calculation is basically correct; the result obtained using the formula is 26.6. It is recommended to use DN32 after rounding, to allow for an appropriate margin of safety. :)
Reply #92007-12-07
The flow rate in water pipes is also related to the pipe diameter; larger diameters result in relatively lower resistance losses, allowing for higher flow rates. For specific selections, please refer to the Quick Reference Manual for Petrochemical Pipeline Design.
Reply #102007-12-07
Calculating R=26.6, DN32 should be selected

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