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Factors affecting radar level gauge measurement

Factors affecting radar level gauge measurement

2022-08-04

With the rapid development of my country's chemical industry, the petrochemical industry, as an extremely important part of the chemical industry, has been able to continue to develop and progress, but the original artificial magnetic liquid level gauge flushing form cannot adapt to its development, and there are many shortcomings in manual measurement. At this point, the measurement results are unreliable, so the radar level gauge appeared. This paper introduces the measurement principle and classification of the radar level gauge, explains the measurement characteristics of the radar level gauge, and finally analyzes the application of the radar level gauge in the oil storage tank.

Factors affecting radar level gauge measurement

The oil storage tank is an extremely important part of the radar level gauge measurement system. During the actual measurement process of the radar level gauge, the measurement results will be affected by the substances inside the tank, resulting in the measurement of

The result is less accurate. Such factors include: the interference caused by the condensation of steam or oil and gas in the tank to the reflection stage, and the impedance jump at the connection position of the antenna. Impedance jumps occur inside the short tube, obstacles interfere with the reflection stage, and adhesions are overlaid on the high-frequency head, etc. When installing the still-pipe, special attention should be paid to whether the surface and interior of the still-pipe are flat. The time travel of the electromagnetic wave in the still-pipe will be affected by the slight change in the inner diameter of the still-pipe.


Common problems during measurement

Due to the many advantages of the radar level gauge itself, the 5900s radar level gauge can be widely used in oil storage tanks, but there are still some problems in the actual measurement process.

The problem is analyzed; the lost wave problem, the lost wave is that the echo is too weak, the main reason for this problem is that the oil level and the direction of the radar level gauge antenna are not kept vertical, and the liquid level guage is disturbed or there are disturbance factors. Therefore, it is necessary to check the antenna of the radar level gauge to see if there are other adhesions or condensation, and clean the antenna and adjust the direction to the correct state.

Application effect

After the radar level gauge is installed in the oil storage tank of an oil depot, the measurement is carried out by means of frequency modulation continuous wave. The staff analyzes the inlet temperature, outlet temperature and historical data of the liquid level of the oil storage tank.

It is concluded that during the application of the radar level gauge in the oil depot, the rosemount 5900s radar level gauge has never had any problems, which shows that the radar level gauge has a long trouble-free time, which shows that the radar level gauge is reliable. The measurement results of the radar level gauge are extremely accurate, and the measurement and calculation work will not be affected by problems such as calipers, and the performance is higher than that of the mechanical level gauge.


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