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Radar level meter measurement of large floating roof storage tank selection principles

Radar level meter measurement of large floating roof storage tank selection principles


Large floating roof storage tank is an important container for oil storage, and the level data of the storage tank is undoubtedly the most important production data in the production management of the reserve, at present the radar level meter is still the primary choice for most enterprises to measure large floating roof storage tank. Today we talk about the selection and installation considerations of radar level meter when measuring floating roof storage tanks.

The electromagnetic wave emitted by the battery powered electromagnetic flow meter can pass through the vacuum without the need of transmission medium, and has the feature of not being affected by the atmosphere, steam and volatile fog in the tank, so it can be used for level measurement of volatile media. It can be used for level measurement of almost all liquids, and in practical applications, almost all media can reflect enough reflected waves. And with non-contact measurement, it is not affected by the physical properties such as density and concentration of the liquid in the tank. The measurement range is also large, with a maximum measurement range of 0-35m, which can be used for high temperature and high pressure liquid level measurement. The antenna and other key components are made of high quality materials with strong corrosion resistance, which can adapt to strong corrosive environment. And the radar level meter adopts integrated design, no moving parts, no mechanical wear and tear, long service life.

About how to select the radar level meter when measuring large floating top storage tanks? Radar level meter has a variety of antenna types such as conical antenna, parabolic antenna, waveguide tube array antenna, etc. For the floating roof storage tank used in large warehouses, as the liquid medium has a steel floating plate, the floating plate floats up and down with the liquid level, how to detect the liquid level of the medium through the floating plate when distilling is the first problem to face in the selection of liquid level meter. According to the past experience of choosing radar level meter for ordinary arch storage tank, the larger the size of the antenna of the radar level meter, the stronger the ability to transmit microwave signals, and the higher the anti-interference ability, so the parabolic antenna will achieve good detection results. However, the parabolic antenna should be installed far away from the tank wall, so that the propagation and reflection of radar waves can prevent the unstable position of the liquid level at the inlet from interfering with radar detection. The floating top tank is obviously not suitable for the use of parabolic antenna, and the radar antenna with wave guide tube has undoubtedly become the best choice. Because the radar level meter can detect the admittance level switch for liquids directly through the floating disk with waveguide tube. As the large floating-top storage tank in the rotating jets and other agitation devices, will produce continuous eddy current in the medium, which will cause the false reflection of radar waves. The radar level meter cannot be installed in the center of the floating-top storage tank, but only near the tank wall. The wave guide tube also serves to converge the radar waves, enhancing the reliability of the detection. Because of the decision to use the waveguide tube, so you can use a special waveguide tube array antenna, compared with other forms of antennas, waveguide tube array antenna with waveguide tube has a better detection effect.

The above is the selection principle of radar level meter measuring large floating roof storage tank, I will also be dedicated to a note on the installation of radar level meter measuring large floating roof storage tank, continue to lock us to learn more about radar level meter related knowledge!

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