Newbie seeking help
Thread Content
Help, as shown in the figure below, will the liquid flow along path 1?
What are you trying to say? Just by leaving, does that mean you win?
It depends on the pressure drop in the pipeline; the liquid will certainly flow toward the area with lower pressure drop. It is also related to the flow rate and pressure at the pump outlet. For example, if the diameter of line 2 is DN20 and that of line 1 is DN80, and the pump’s output flow is sufficient, then line 1 will definitely carry more flow.
This post was last edited by lelele654987 on 2018-7-30 at 13:42. Reply to the moderator: So, assuming the flow rate at the pump outlet is high enough, liquid will definitely flow through line 1, right? Please take a look at the diagram below: if several small pipes are created in Line 1 and Line 2, will liquid flow out of each of those small pipes?
This diagram looks just like the fire steam loop in the actual facility; if all the pipe diameters are the same and the flow rate and pressure are high enough, then each branch you open will have flow. I think what you’re asking is about the effect of gravity on the flow of fluids inside. In actual chemical production, gravity has a relatively minor impact; under normal conditions, there is a surplus of flow rate and pressure at the pump outlet, so flow will be present in all branches. If you really want to consider extreme cases, make this ring large enough and tall enough, so that it exceeds the pump’s head pressure ； Or the pipe friction losses differ significantly ； Or if the pipe diameter is particularly large and the flow rate at the pump outlet is insufficient, then flow deviation will definitely occur.
Thank you for the advice, moderator. Actually, this loop isn’t very large; the flow velocity in the pipe is 5 m/s. I was initially worried that the liquid might take a shortcut through path 2 and flow directly out via path 3, since path 1 is at a higher level than path 2. But now I think it will definitely flow through path 1 – the effect of gravity is minimal
Lower resistance and lower pressure drop definitely mean a higher flow rate.