Single tank side full pipe problem
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I have a question for you all. The side full pipes of the company's storage tanks (normal pressure) are led from the top melon segment, as shown in the figure below. Can this achieve the goal of fullness? If yes, what is the principle? I personally feel that the principle of this design is the siphon effect. Thank you all!
Siphon is based on the situation where the liquid fills the pipe. With your design, the liquid can only start to flow out when the liquid level in the tank is higher than the highest point of the pipe. Then a siphon is formed, which can suck the liquid out to the height of the liquid level at the inlet.
So when the design liquid level is =, can the pressure inside the tank push the liquid out? If not, wouldn't this design be unreasonable? Thanks
This post was last edited by henglinkou on 2020-7-2 11:31. Isn’t this a normal pressure tank? Is there slight positive pressure? If there is pressure in the tank, when liquid starts to flow out of the overflow pipe, the liquid level will be below the highest point of the pipe and the height from the highest point of the pipe will be: P/(ρg) P---Pressure in the tank Pa(G) ρ---Liquid density kg/m3 g---Acceleration of gravity m/s2 What is the material in the tank? Where does the material go after overflowing?
There is slight positive pressure, the design pressure is 18kpa, the material is liquid oxygen, and it is discharged to the atmosphere after overflow.
This is to prevent positive pressure. When the pressure reaches a certain pressure, even if the liquid level is low, it will be squeezed and flow away from the tube, thus achieving the purpose.
Hello, what does preventing positive pressure mean? Also, if the liquid level is too low to meet the design level, even if the pressure is relatively high, it shouldn't be possible to fill it from the side, right? After all, the liquid level cannot reach the side full pipe at this time. Thanks
You'd better post the whole picture, it's like a blind man trying to figure out the elephant.
Liquid oxygen tanks are all pressurized. When this valve is opened, pressurized gas is always discharged. Once the liquid level reaches the side full pipe, the liquid will spurt out, indicating that the liquid level in the tank is full. Your normal pressure theory is not valid, nor is your micro pressure theory. Everything must speak for itself with data. The so-called normal pressure design is nonsense. Whether it is a liquid oxygen storage tank or a storage tank, "full measurement" must be achieved under the premise that the pressure is greater than atmospheric pressure. For reference.