Due to the special structure and operation mode of PEM electrolysis tanks, many level meters have problems in level measurement of PEM electrolysis tanks.

And radar level meter, as an advanced measuring instrument, has become an ideal choice for measuring the level of PEM electrolysis tank because of its non-contact measurement and high precision measurement. We will introduce the working principle of radar level meter, analyse the measurement difficulties of PEM electrolysis tank, and illustrate the application of radar level meter in PEM electrolysis tank level measurement through actual measurement cases.

Let's take a look at the difficulties of level measurement in PEM electrolysis tanks, corrosive environments

PEM electrolysis tanks are usually filled with strong acid, alkali and other corrosive liquids, traditional level gauges are difficult to withstand this harsh environment and are prone to corrosion and leakage. High-pressure environment: PEM electrolyser generates high pressure during operation, which puts higher requirements on the safety and stability of the measuring equipment. Large temperature fluctuations: The temperature inside the electrolyser fluctuates greatly, affecting the physical properties of the liquid and the accuracy of the measurement equipment. Influence of bubbles and foams: Bubbles and foams in the electrolysis tank will affect the propagation and reflection of microwave signals, leading to measurement errors. Radar level meter uses the transmission and reception of microwave pulses to measure the liquid level. Microwave pulses are transmitted through an antenna and reflected back to the receiver after encountering the liquid level. By measuring the time difference between the transmitted and reflected waves, combined with the known wave speed, the liquid level height is calculated. Radar level meter has the characteristics of non-contact measurement, high accuracy, high reliability, etc. It is suitable for all kinds of harsh industrial environments.

A chemical plant uses radar level meters for level measurement of its PEM electrolysis tank. Considering factors such as corrosion, high pressure and temperature fluctuation, a customized radar level meter with corrosion resistance, high strength and high stability was selected. The radar level meter is equipped with special anti-corrosion coating and high temperature resistant materials, which can adapt to the harsh environment inside the electrolysis tank. During the installation process, in order to avoid the microwave signals being affected by the bubbles and foam inside the electrolysis tank, the radar antenna is protected by a wave guide tube. The waveguide tube can guide the microwave signal along the wall of the tube to avoid direct contact with the liquid inside the electrolytic tank. At the same time, the wave guide tube can also play a role in stabilising the liquid level, reducing the impact of liquid level fluctuations on the measurement accuracy. Through the actual operation data comparison, the chemical plant found that the radar level meter in the PEM electrolysis tank level measurement has high accuracy and stability. It not only meets the requirements of the production process, but also greatly improves the production efficiency. In addition, the radar level meter has low maintenance cost and long service life, which saves a lot of maintenance cost for the plant.

As an advanced measuring instrument, radar level meter has significant advantages in PEM electrolysis tank level measurement. Through reasonable selection and installation of radar level meter, it can effectively solve the difficulties of PEM electrolysis tank level measurement and improve production efficiency and product quality.