Application and Maintenance of Radar Level Gauge in Refinery Tank Farm

Refinery is the lifeline of the national economy and is related to the economic development of the country. With the acceleration of the industrial process, manufacturers put forward higher requirements for oil refining measurement, not only for accurate measurement, but also for long-term stable operation. Correspondingly, more stringent requirements are also put forward. Below we will focus on the application and maintenance of radar level gauges in oil refinery tank areas. 1. Application principle The radar level gauge uses high-end radar technology to measure the actual liquid level value in the container. It is a new type of liquid level measuring instrument with high reliability and performance. It sends microwaves to the liquid under test through the antenna, and obtains the liquid level value through the reflected time and frequency. Because its work does not need to contact the liquid, the internal detection element will not be corroded by the liquid, thereby increasing its service life. . At the same time, the microwave emitted by the radar level gauge is an electromagnetic wave, which does not need a propagation medium and can penetrate smoke or steam, thus effectively ensuring the accuracy of its measurement data [1]. 2. The application advantages of radar liquid level gauge in oil refinery tank area Compared with other liquid level measuring instruments, radar liquid level gauge has obvious advantages. It has long service life, strong anti-interference ability, many measurable media, and reliability. strong, making it more widely used. 1. Long service life The radar level gauge has a long service life and does not require long-term maintenance, which has become the main advantage compared with other liquid level measuring instruments. Its internal structure is simple, mainly composed of an antenna and an electronic control unit, and there are no moving parts during operation, so there will be no mechanical wear and tear, which prolongs its service life. At the same time, the radar level gauge does not need to be in contact with the liquid during measurement, thus avoiding the influence of various external environmental factors on its internal structure, making it longer service life compared with other liquid level measuring instruments. 2. The anti-interference ability highlights the strong anti-interference ability of the radar level gauge, and the obtained data is more accurate, which has become its own advantage compared with other liquid level measuring instruments. The microwave it sends is an electromagnetic wave, which can be transmitted without a medium, and can pass through the atmosphere, steam, etc. with little influence. Therefore, the radar level gauge is widely used in the liquid level measurement of various liquids, and the obtained The data is more accurate [2]. 3. The radar liquid level gauge can measure a variety of mediums, and it has many measurable media, which has also become its own unique advantage compared with other liquid level measuring instruments. It does not need to be in direct contact with the liquid to measure, avoiding the influence of the density of the liquid, making it a larger measurement range. At the same time, it also reduces the probability of failure of the radar level gauge, making it easier to maintain. 4. High reliability Compared with other liquid level measuring instruments, the radar level gauge also has the advantages of simple installation and high reliability. The radar level gauge adopts two output modes, digital and analog, which can be easily connected with the computer. At the same time, its radiation rate is very low, and there is basically no harm to the surrounding environment and staff. Therefore, the radar level gauge has high operability. 3. Application characteristics of type selection in oil refinery tank area factors, including the characteristics of the measured medium, the purpose of the medium measurement, and other factors such as environmental conditions and economic conditions. Try to take advantage of the strengths and avoid weaknesses among many instruments, and choose the instrument that is most suitable for the measurement medium and purpose. 2. Consider the characteristics of the measured medium Since there are many types of radar level gauges, before measuring, first consider the pressure, temperature, density and other characteristics of the measured medium, and select the appropriate antenna and meter in a targeted manner. For high temperature or highly corrosive media, a non-contact antenna radar level gauge should be used, so that the level gauge does not come into direct contact with the liquid, which can not only ensure the accuracy of the measurement data, but also protect the level gauge from damage [ 3]. 3. Consider the purpose of medium measurement When selecting a radar level gauge, the purpose of medium measurement should also be considered, so as to choose a level gauge with different measurement accuracy. In order to save the investment as much as possible, on the premise of satisfying the measurement accuracy, choose the most cost-effective liquid level gauge as much as possible. If the purpose of the medium measurement is for internal accounting, the requirements for accuracy do not need to be too high. If the purpose of medium measurement is to be used for external transactions, it is necessary to choose a high-precision level gauge. 4. Consider other factors In addition, when selecting a radar level gauge, other factors such as environmental conditions, installation conditions, economic conditions, and measurement range and frequency need to be considered. 5. The installation of the radar level gauge The installation of the radar level gauge is also a very important part of liquid level measurement. In order to ensure the normal and stable operation of the radar level gauge, scientific and reasonable installation methods must be used to reduce various failures. occur. During installation, the antenna should be balanced with the measurement groove wall, and the distance between the installation position should be greater than 300mm from the groove wall to maintain a sufficient distance, otherwise it is easy to cause abnormal echo signals and false echo signals.
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