Regarding the issue of pipeline flow velocity.
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This post was last edited by wangqiande2oo8 on 2024-6-13 at 16:48. As shown in the figure, the pump outlet valve is fully open; the pump’s maximum flow rate is 144 tons, which results in a pipe flow velocity of 1.60 m/s. During the simultaneous loading process at stations 1# and 2#, the mass flow meter indicated a flow rate of 86 t/h, corresponding to a flow velocity of 3.80 m/s – which is above the allowable limit. I would like to ask the experienced users on this forum: at this stage, is it more practical to add flow-limiting orifice plates to the loading crane positions, or to replace the pump?
In this case, installing flow-limiting orifice plates at the loading crane positions is more practical than replacing the pump. By installing a flow control orifice plate, it is possible to effectively regulate the flow rate and prevent problems related to excessive flow speeds. Moreover, the cost is relatively low, and there is no need to modify the existing pump system. .
The loading pipeline is DN200, and the flow rate through the dip pipe is lower than that at the pump outlet – so how can the loading flow rate increase? Does the flow meter have a constriction?
There is a 100 mm reduction in diameter over 2 meters in the middle of the 200 mm pipe!