Seeking advice on measuring tank level using the siphon method
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The liquid level in the tank is measured using the siphon method and differential pressure. When the sampling tube is completely filled with liquid, the drain valve at the bottom is opened. I would like to ask whether the cooling water in the tank will fill the pipe section marked as a in the diagram?
Section A can’t be filled with water completely; it will retain a column of air that drips out........
This post was last edited by 1111111 on 2019-12-17 16:13 ......
For sinks, use an immersion-type level gauge to measure the water level – it’s simple, reliable, and free from false readings. It supports a range of 5 cm, 5 meters, and 500 meters; just drop it in and that’s it........
Section A needs an additional valve for water injection; otherwise, it definitely won’t be filled completely
First, you need to suck it out with your mouth for water to flow continuously; section a should not be filled with liquid and will contain air
The situation is as follows: above section A there is a water addition valve. During testing, in order to allow the water in the tank to be drawn into the pressure guide pipe below through siphoning, the valve at the top is opened to fill the pipe with water; after that, the valve is closed and normal use can begin. However, after a few hours of use, the measured water level shows abnormal values, and it becomes necessary to open the drain valve at the bottom to release some water, after which the water level returns to normal. The water that is discharged is clean, with no bubbles present. Then, after a period of normal operation, problems arise again, requiring repeated sewage discharge, with no way to identify the cause.
The situation is as follows: above section A there is a water addition valve. During testing, in order to allow the water in the tank to be drawn into the pressure guide pipe below through siphoning, the valve at the top is opened to fill the pipe with water; after that, the valve is closed and normal use can begin. However, after a few hours of use, the measured water level shows abnormal values, and it becomes necessary to open the drain valve at the bottom to release some water, after which the water level returns to normal. The water that is discharged is clean, with no bubbles present. Then, after a period of normal operation, problems arise again, requiring repeated sewage discharge, with no way to identify the cause.
The situation is as follows: above section A there is a water addition valve. During testing, in order to allow the water in the tank to be drawn into the pressure guide pipe below through siphoning, the valve at the top is opened to fill the pipe with water; after that, the valve is closed and normal use can begin. However, after a few hours of use, the measured water level shows abnormal values, and it becomes necessary to open the drain valve at the bottom to release some water, after which the water level returns to normal. The water that is discharged is clean, with no bubbles present. Then, after a period of normal operation, problems arise again, requiring repeated sewage discharge, with no way to identify the cause.