Liquid chlorine level gauge selection

The chemical name of liquid chlorine is liquid chlorine, which is a yellow-green liquid. It burns and explodes when mixed with other flammable gases under sunlight. Chlorine is a very active substance that can react with most elements (or compounds). The liquid level measurement of the liquid chlorine storage tank must take into account the requirements of corrosion resistance, safety requirements, reliability, convenient installation and easy maintenance, which makes the liquid level monitoring of the liquid chlorine storage tank a common problem in the chlor-alkali industry. In storage tank level measurement, the following types of level gauges have a large number of practical applications: 1. Buoyancy level gauges such as float level gauges, magnetic flap level gauges, float level gauges, floating disc level gauges Gauge, float level gauge, steel belt level gauge. This type of buoyancy level gauge has measurement accuracy, but the on-site installation and structure are complex, with many mechanical parts and a large amount of daily maintenance in the actual application process. 2. Pressure type liquid level gauge pressure transmitter, single flange liquid level transmitter, and submerged liquid level transmitter are often used for liquid level measurement of open containers; differential pressure transmitter, remote transmission double flange differential pressure Transmitters are often used for level measurement in closed containers. Differential pressure level gauges are easily affected by medium density and temperature changes during measurement, and the maintenance of accessories is large; if the liquid level of strong corrosive media is measured, the cost of the instrument is expensive. 3. Microwave level gauge Ultrasonic level gauge, radar level gauge, and guided wave radar level gauge are all microwave level measuring instruments, which can be used for level measurement of solids and liquids. Although these level meters have advanced technology and increased measurement accuracy, for pressure vessels storing light hydrocarbons, liquid ammonia, liquid chlorine, etc., due to the low dielectric constant, volatilization and the existence of a large number of droplets in the gas phase medium, they will absorb and affect the pressure vessels. Electromagnetic wave reflection interferes with the level measurement of the microwave level gauge, resulting in unstable measurement values ​​of the level gauge. Fourth, the working principle of the externally-mounted liquid level gauge The externally-mounted liquid level gauge adopts the principle of sonar ranging, uses a special probe attached to the outside of the container wall to collect sonar signals, takes special sonar wave processing technology as the system core, and adopts advanced high-speed Signal processing technology is used to calculate the liquid level height. Therefore, the external measuring liquid level meter continuously and accurately measures the liquid level height in the tank from outside the tank, and does not touch the liquid and gas in the tank at all, realizing the real isolation measurement. The externally attached liquid level gauge has the following advantages: 1. It can be used in the harshest environments, can measure liquids of any pressure, can measure the most toxic liquids, and can measure the most corrosive liquids. 2. It is safe to use. When measuring toxic, corrosive, pressurized, flammable, explosive, volatile, and leaky liquids, since the measuring head and the instrument are outside the container, during installation, repair, and maintenance operations, The operator does not touch the liquid and gas in the tank, which is very safe. Leaks will never occur, even when the meter is damaged or under repair. 3. Meet the environmental protection requirements. It neither leaks liquid nor gas, does not pollute the environment, and is a green environmental protection instrument. 4. The installation and maintenance are the most convenient and economical. Because the liquid level meter does not need to open holes on the container, does not need a flange plate, and does not need a connecting pipe, it is very convenient to install and maintain. The external measuring liquid level meter does not need manual calibration during installation and use, which is very convenient. 5. Accurate measurement. The external level gauge can be continuously and automatically calibrated to ensure the highest measurement accuracy. In addition, the external liquid level gauge can increase the temperature compensation function. The measurement accuracy of the externally attached liquid level gauge is 1%; the self-calibration type, the measurement accuracy is 0.2%. Among them, the self-calibrating liquid level meter does not require manual calibration. Related product links: 31.html

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