How to control the flow meter when conveying the medium from a higher place to a lower one?
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Friends, I’m facing such a situation right now. The oil tank is located on the 5th floor, and the equipment for adding oil is also there; the gear pump is automatically controlled to add oil based on the production volume. However, since the addition point is on the 4th floor, the height difference is about 6 meters. After being in use for some time, the clearance in the gear pump increases, which causes the fluid to flow on its own to the addition point. As a result, it becomes impossible to automatically adjust the flow rate based on the pump’s speed; in the most extreme cases, the flow rate is already very high even when the pump isn’t rotating. I’m asking my friends for any good solutions; at the moment, it’s not feasible to add control valves or move the pump and oil tank to the 4th floor. Urgent! ! ! ! !
It is possible to install an inverted U-shaped tube at the outlet of the gear pump, with its height set at the highest liquid level in the tank; this way, flow will not occur by gravity. Additionally, by installing a tee at the highest point to return to the storage tank, siphoning will not occur.