Radar-based Level Measurement in Urea Synthesis or the Elimination of Radioactive Sources in Urea Plants

摘要

Measuring level in high pressure urea synthesis equipment is not an easy job. Extreme process conditions especially with respect to the corrosiveness of the process media and the nature of the equipment involved eliminate most of the measuring principles available. One of the very few reliable techniques uses radioactive sources to measure level and is thus more or less common practice in urea plants. However radar-based measurement has become feasible because the increasing computing power is able to deal with the necessary advanced signal processing. Using appropriate construction materials this technology offers a perfect alternative.