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[Chemical Knowledge]：Working Principle and Application of Differential Pressure Level Gauge

Read： 285 Time：13months ago Source：Transform the World with Simplicity

Differential pressure level gauge is a common liquid level detection instrument, which is widely used in chemical, petroleum, pharmaceutical and other fields to obtain the liquid level information of the measured medium. Its measurement principle is to use the relationship between liquid level height and liquid pressure to measure.

differential pressure level gauge usually consists of two pressure gauges, a computer and a liquid density sensor. The height of the liquid level is obtained by calculating the difference between two pressure measurements, which is also called the pressure difference. It can be calculated by the following formula:

liquid height = pressure difference/liquid density

where the pressure difference refers to the pressure difference between the pressure gauges before sinking to the liquid surface or after rising to the liquid surface.

Compared to other types of level gauges, differential pressure level gauges are not affected by changes in medium pressure, temperature and density. Moreover, the instrument has extremely high accuracy, stability and reliability, which is more common in industrial processes used for long-term stability.

differential pressure level gauges are suitable for measuring various liquids, such as acids, alkalis, oils, water and other hazardous or flammable substances. It is the best choice for measuring high-viscosity substances, because the pressure sensor can be placed directly in the medium, thereby improving measurement accuracy and reducing measurement errors.

differential pressure level gauges can be used in a variety of applications, such as storage tanks, reactors, quenching tanks, make-up tanks, water treatment and chemical treatment. We need to choose according to actual needs, ensure that the effect of the equipment used meets expectations and contributes to industrial safety.

Generally speaking, differential pressure level gauges have the advantages of flexibility, easy operation and safety, and are widely used in various liquid measurement and control. We have reason to believe that it will continue to play an important role in the future industrial field.

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