Enraf comprehensive sample

In modern industrial enterprises, spherical tanks are primarily used for storing liquefied gases such as liquefied petroleum gas, liquid ammonia, and VCM monomer. These substances exist in gaseous form at normal temperature and pressure; to store them, they need to be converted into a liquid state by applying pressure and lowering the temperature, which **improves storage efficiency**. At the same time, higher requirements have been placed on the selection of level gauges. Firstly, the level gauge must be suitable for measuring over a wide range, and it also needs to have pressure resistance, so that changes in the pressure inside the tank do not have an excessive impact on its measurement stability and accuracy ； Secondly, the impact of the purity, crystallinity, and impurity content of the medium on the level gauge measurements also needs to be considered ； In addition, the feeding and discharging methods and speeds, as well as the impact of the medium’s volatility on level measurement, must also be taken into consideration.

1. The servo level gauge can not only measure the liquid level of the medium, but also perform functions such as density measurement, oil-water interface detection, as well as measurement of the average density and density distribution of the medium. However, when the viscosity of the medium being measured is high, and it exhibits wall-adhesion and viscosity-related properties, servo level gauges produce significant measurement errors; they are not suitable for measuring the level of such media, and moreover, these level gauges are relatively expensive. 2. Radar level gauges have numerous advantages: they can measure liquids, solid media, volatile liquids, etc., and are not affected by factors such as noise, steam, dust, or vacuum. They are also unaffected by changes in the density or temperature of the medium. Additionally, they feature high measurement accuracy, a small blind zone, easy maintenance, and strong stability.