Regarding the resistance of bent pipes
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Why can my company modify the pipe installations however it wants! No consideration at all for resistance? ? ? ? ?
Your question is valid; you need to ask the designers at your company, as it’s difficult for an ordinary person to answer
If the pipeline is long, the resistance caused by bends can be ignored; compared to the frictional resistance of very long pipelines, the resistance from elbows is not significant
The resistance isn’t a big issue; the problem is not to alter the stress in an adverse way.
Many companies do this: they keep modifying the existing piping in order to upgrade the processes or add new equipment. However, before modifying the pipelines, it is essential to consider the impact on the flow pattern of the media being transported upstream and downstream: disrupting the equilibrium state in the existing process can subject certain equipment to high loads or lead to a decrease in production efficiency. If the pipeline modification is not done properly, it is very likely to cause pressure buildup in the pipeline, leading to its rupture; this is extremely dangerous and also **reduces the pipeline’s service life**.
Considering the length of the pipeline, if it is very long, the resistance can be ignored; our company also does not take into account the resistance caused by elbows
The resistance caused by elbows is actually quite significant and cannot be ignored; especially when the number of elbows is increased arbitrarily, it has a considerable impact on the system.