The flow velocity of fluid in the pipeline
Thread Content
During process design and technical upgrades, the issue of selecting pipe diameter often arises； What is an appropriate normal flow velocity for different fluids in pipes? Especially for gases, the flow rate varies with pressure; let’s discuss this.
For liquid fluids, the typical flow rate range is 1 m/s to 3 m/s; however, in special cases such as when there are obstructions or a higher shear force is required, the flow rate can be increased appropriately. At the same time, attention must be paid to the effect of the pipe wall surface on the liquid; if the wall surface is rough, it will generate greater friction, thereby affecting the flow velocity. For gaseous fluids, the flow rate is directly proportional to pressure; as pressure increases, the flow rate also increases accordingly. The typical flow rate range is 20 m/s to 60 m/s, but excessively high flow rates can cause turbulence and noise in the gas, and may even lead to corrosion issues. Therefore, when selecting the flow rate of the gas fluid, it is necessary to make a reasonable choice based on specific process requirements as well as factors such as the material and size of the pipes; at the same time, it is important to assess the safety and reliability of the system. .
Thank you! Could you check the standard name or standard number?
HG/T20570.6-95