Measuring chlor-alkali why can directly use electromagnetic flow meter

The chlor-alkali industry mainly measures brine and caustic soda, which share common characteristics:

• A、Chlor-alkali plant in the north due to low winter temperatures, brine pipeline have appeared salt phenomenon, barrier caustic soda will also be in the process of transport with the lowering of the temperature and the precipitation of salt; ionic membrane caustic soda 32% in 3 ~ C or so will be crystallized; in the pipeline long and intermittent transport, the winter of my plant has also presented a 32% caustic soda crystals and infarcted pipeline, so the two types of media will be presented with the phenomenon of containing solid particles.

• B、The temperature of both media is below 100°C.
• C、Brine has a complex composition, sometimes acidic, sometimes alkaline, and may contain free chlorine as a result of poor dechlorination of the ionic membrane, both of which are highly corrosive.
• D、Both are conductive media.

Differential pressure flowmeter, turbine flowmeter, elliptical gear flowmeter, etc. are subject to the fluid operating conditions and fluid density, viscosity and other parameters of the impact of the measurement error increases. As the measuring element by the wear and tear of solid particles to reduce the life, or even clogging can not be used, corrosion can not be solved. There have been customers using elliptical gear flowmeter measuring diaphragm electrolyte, but due to the electrolyte salt precipitation clogging and discontinued, replaced by electromagnetic flowmeter to solve the problem. Based on the characteristics of the measured medium and electromagnetic flowmeter structure and material advantages, can be seen in the chlor-alkali measurement is very suitable for its high accuracy, low maintenance, long service life, has a high cost-effective.