Liquid level gauge for atmospheric pressure liquid ammonia storage tanks
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Our company has a storage tank for liquid ammonia at atmospheric pressure, and the level gauges installed there keep giving inaccurate readings. Which brand of level gauge performs well?
Atmospheric pressure liquid ammonia storage tank? Ammonia water is more or less okay.
This post was last edited by Xiaonian Gao on 2016-6-19 20:28. Is it entirely frozen? The boundary where ice forms on the outside of the pipe is the liquid level boundary
What type of level gauge is used on site? Magnetic flap? For external level gauges like this, it is best to provide cooling to keep them at the same temperature as the material inside. We have encountered this problem before as well, but we are pressure storage tanks~
Hello! External-mounted level gauges are widely used in liquid ammonia storage tanks; they offer high measurement accuracy, require no drilling, and do not cause any leaks. .
I used to work with acrylonitrile; the liquid ammonia tanks had a pressure of around 10 kilograms at atmospheric pressure, and single-flange connections with capillaries were used, with pressure transfer pipes connecting directly to the negative pressure side
For ammonia to turn into a liquid, either high pressure or low temperature is required. From what the poster mentioned, the temperature seems to be around minus 190 degrees, which makes it difficult to achieve this condition. Typically, liquid ammonia storage tanks operate at high pressure and normal temperature, allowing for a wide range of level gauges to be used; however, such conditions as those described are rare, making it hard to choose an appropriate gauge
E+H guided wave radar, with a hermetically sealed feedthrough structure, resistant to ammonia corrosion. There are many achievements of success
Double flange, already used, simple maintenance
Thank you. Our ammonia tank operates at low temperature and normal pressure, and the magnetic flap level gauge on site keeps giving inaccurate readings, which is really troublesome