How to measure the volume of water at the bottom of a vertical metal tank when the water level is below the measurement zero point?
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How to measure the volume of water at the bottom of a vertical metal tank when the water level is below the measurement zero point? How do people consider this during the actual handover?
What you are referring to is probably the bottom volume of the oil tank in terms of measurement; this value is provided in a volume report issued by the tank calibration department during the tank cleaning process, and it includes the data regarding the bottom volume. Normally, vertical oil tanks contain a small amount of water, so that leaks at the bottom of the tank can be detected by observing the level of water. Our oil storage facilities will avoid the phenomenon you mentioned, ensuring that there is at least 2–5 millimeters of water at the bottom of the oil tanks. Even if what you described happens, I personally think this bottom should still be considered as water. For the measurement at the handover point, it’s simple – as long as it remains consistent from start to finish, there’s no issue whether it’s calculated as water or as oil.