The secondary desalination tank is a common petrochemical equipment, which is mainly used to remove salts and other impurities to ensure the quality of oil products. Monitoring the interface level of the secondary desalination tank is one of the necessary conditions to ensure normal production operation. Guided wave radar level meter has become one of the preferred devices for interface level measurement in secondary desalination tanks due to its high accuracy, fast response, wide adaptability and other characteristics. In this paper, we will introduce the characteristics of the interface level of secondary desalination tank and provide two actual measurement cases to prove the advantages of guided wave radar level meter in the interface measurement of secondary desalination tank.

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The characteristics of the interface level of the secondary desalination tank mainly include: interface level: the interface position of the secondary desalination tank refers to the sub-interface between brine and oil-water. Traditional liquid level meter is difficult to distinguish between liquids with different dielectric constants, while the guided wave radar level meter responds quickly between liquids with different dielectric constants and accurately identifies the interface level of the secondary desalination tank, thus ensuring the normal operation of the equipment. High temperature and high pressure: the level monitoring environment of the secondary desalination tank is high temperature, and there are high-pressure gases and vapours, which often affect the stability and accuracy of conventional level meters. Guided wave radar level meter can work stably because of its high precision and wide adaptability, and it is very little affected by temperature and pressure changes, which ensures the accuracy of measurement. Fast response: The secondary desalination tank needs to adjust the interface level constantly, which requires the level meter to respond quickly and provide timely and accurate feedback of the liquid level information. Guided wave radar level meter has the characteristics of fast response, can accurately feedback interface liquid level, to meet the needs of business monitoring, automatic adjustment and other work in the production process.

We through the actual measurement cases, to understand the guided wave radar level meter in the field of secondary desalination tank interface level monitoring excellent performance. Case 1: An oil group uses guided wave radar level meter technology to measure the interface level of secondary desalination tank. The device has a fast response, high precision, good stability, adaptability and many other features, to meet the complex environmental conditions of the media measurement, has been more excellent application results. Case 2: an oilfield company in the secondary desalination tank level measurement selected guided wave radar level meter, the device can effectively identify the height of different liquids, so as to achieve accurate measurement and automatic control. At the same time, the guided wave radar level meter can adapt to the requirements of the change of dielectric constant in the secondary desalination tank to ensure the accuracy and stability of the measurement.

Interface level measurement of secondary desalination tank is one of the important links in the refining process, and guided wave radar level meter has become one of the preferred equipment for interface level measurement of secondary desalination tank by virtue of its high accuracy, fast response, wide adaptability, insensitivity to the change of dielectric constant and other characteristics. More and more refineries apply guided wave radar level meter in the interface level monitoring of secondary desalination tank, which greatly enhances the safety and controllability of the production process. With the continuous development of science and technology, it is believed that the application range of guided wave radar level meter will be more and more extensive, and its functions will be constantly improved, providing better support for the green production of petrochemical industry.