Leak! Leak! Revealing a new method for using a differential pressure gauge to measure liquid level! . . . . . .
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Leak! Leak! Revealing a new method for using a differential pressure gauge to measure liquid level! This method can perfectly solve the problem of vapor condensation, which affects measurement accuracy. It can also effectively address the issue of highly corrosive liquids that cause damage to the sensor diaphragm. The difficulty with this method lies in finding a way to retain the gas inside – one must be able to hold back the gas, just like a turtle that can store air in its shell, you understand? :P. . The pig said, \"There are no paths in the world originally; when my brother walks on them, and you walk on them as well, then they become paths.\" Hehe :lol
This is how the LNG pressure stabilization tank is installed. It can be used without your proprietary component~ The pressure experienced by the positive pressure is the same as that at the pressure measurement point. Just like with pressure transmitters, it’s fine to run the gauge head at a long distance, but this affects accuracy and response speed.
1. Hehe. . . . . . 2. According to my “research,” LNG exists because liquid natural gas continuously vaporizes, thereby compensating for any leaks in the gas phase at the connection points of the instruments; that’s why the liquid doesn’t rise to higher levels. 3. If the liquid phase were not natural gas, which vaporizes easily when its temperature rises, but rather gasoline, water, or cooking oil – substances with limited volatility – then if your pressure sensing tube can retain air without leaking, and remains leak-free for half a year or even a year, then congratulations to you. In that case, it means I was wrong in my analysis, okay? :lol.
This post was last edited by 1111111 on 2017-11-6 at 20:47. 4. Holding your breath without letting air escape – it seems not that easy, right? Is a liquid a cluster of molecules? Or are the diameter of liquid molecules larger? I forgot about that,,, In any case, liquids can be easily sealed for long periods of time, while gases consist of individual molecules whose diameters are much smaller than those of liquids, right? In short, whenever the topic of gas sealing is discussed, there is a classic saying: leakage is absolute, while no leakage is relative. The most typical example is hydrogen molecules, which can penetrate through thick steel cylinder walls – they cause leakage; nothing can prevent them from doing so
I get what you mean. Are you considering the condition of minor leaks? If it were ideal. Then you really don’t need that “secret weapon” of yours: lol
Compared to the blowing method for level measurement, it seems to save some air: lol
1. Thank you for following, thank you. . . It’s not just about digging to save some gas; the key is to measure pressure in such a way that even at very low liquid levels, accurate readings can still be obtained. As for blowing air in, there’s a risk of backflow, and in places like the boiler drum, people are probably too afraid to do that either 3. As for blowing air, the pressure balance established in this case is too rough; it’s not accurate enough. In areas like the boiler drum, there’s a risk that even if air is blown in, it won’t be possible to accurately control the liquid level 4. Has anyone seen a blow-out level gauge used for measuring the liquid level in a boiler drum? Is there any? .
This air-locking device can be installed in various locations these days; if it can be mounted on the device’s wall to ensure that everything outside the device is filled with gas, its applications will become much broader. Here’s a hint for you: money is shared once the patent application is approved.
Not only does it need to solve the problem of air leakage, but it also has to address the issue that the fluid in the pressure measurement tube is only in horizontal sections; if it reaches vertical sections, the measurements become inaccurate! There is also the issue of excessive gas pressure; if the liquid level is low, the gas escapes, and it becomes impossible to detect a low liquid level. At least for now, it’s not practical.
I have a question: as mentioned before, has it been studied whether the gas obtained through liquid-phase separation affects the differential pressure value? Does this analysis indicate that gas pressure instability prevents the positive pressure chamber from fully reflecting the liquid level?