A DN100 pipe is connected after a DN200 pipe – how should this pipe be viewed? ? ?
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When a main pipe with a diameter of DN200 passes through another workshop, the space in that workshop being too limited, it is necessary to reduce the diameter of this pipe to DN100. What I would like to ask is: when calculating the cross-sectional area of the branch pipe, should this DN100 pipe be considered a branch pipe or still counted as a main pipe?
Personal opinion: It should still be calculated based on the supervisor.
Boss. By ‘branch pipe’, it should mean that you originally have a pipeline with a diameter of 200. . But another 100 one is branched off from the 200 pipeline. . Only this one with a value of 100 is considered a branch pipe. Changing 200 to 100 is just a change in the diameter of the Supervisor.
However, the DN100 pipe further back is at a higher elevation, about 5 meters higher than the DN100 pipe ahead. I think it should be considered a branch pipe. It should be included when calculating the cross-sectional area in question.
That could be considered a branch pipe. Since you mentioned calculating the cross-sectional area of the section in question, I guess that’s the case.
Is there a unified opinion on this? That’s very important.
It also depends on how the diameter change is achieved; if it is done using an elbow, it should still be the main pipe. If it’s changed using a tee, then it can be considered a branch pipe. Actually, it’s not that strict sometimes; what’s important is not to miss any materials or get them wrong.
Actually, could we consider this: even if there’s enough space, would we still use a 200 tube? If so, it means that in the design concept it was intended to be used as a main pipe; the diameter changed only due to on-site conditions.
Agree with what was said on floor 9; it mainly depends on whether there is a change in diameter or not
Why must there be a distinction between main pipes and branch pipes? Is it for calculation purposes? To ensure the flow rate, main pipes and branch pipes are calculated in the same way
The sum of the cross-sectional areas of the branch pipes should be less than the area of the main pipe. Isn’t there such a rule? That’s why it’s important to identify the person in charge.
I think it should still be considered as part of the main pipe; the pipe diameter was changed due to on-site conditions, but this won’t affect the main and branch pipes!
It should be calculated based on the supervisor’s requirements, but I think the specific value should be determined using DN100 as a standard
Personally, I think it isn’t that important whether it’s a main pipe or a branch pipe; as long as the flow rate required for production is met, that’s sufficient. The main change that occurs when the diameter of a pipe changes is the alteration in flow velocity. If the production process does not require a high flow velocity, then there should be no problems. It’s better to use adapter fittings for such changes rather than simply switching to a smaller diameter pipe.
It’s just a change in diameter; if it’s the main pipe, then nothing changes – it remains a main pipe. But in this way, the flow rate is increased to four times the original value~~~ Is this meeting the requirements?
I also think it should be the supervisor; however, if the flow rate remains unchanged after the diameter is altered, the flow velocity inside the pipe will increase significantly, and it is necessary to take full account of this in order to meet the requirements of the process.
There is really no space to fit DN200 pipes.
The user following you is still the main pipeline; due to the reduction in pipe diameter, the pressure drop in the pipeline will increase.