Radar level measurement
AssigneeStamicarbon B.V.
InventorKlement Riegman
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Abstract
Disclosed is a method of measuring the level of a liquid in a vessel, such as a chemical reactor, by radar. The method particularly pertains to situations wherein a supercritical fluid is present above the liquid. More particularly, the method serves to cope with the typical vigorous circumstances of a chemical reaction, such as urea synthesis. The invention foresees the use of a tube extending into the liquid, so as to guide the radar waves to the surface level of the liquid.
Claims14
A radar method for detecting the level of a liquid in a vessel wherein a supercritical fluid is present above said liquid, the method comprising transmitting electromagnetic waves into the direction of the liquid through a tube, wherein the tube extends to a bottom end placed within the vessel above a desired minimum level of the liquid, and wherein said bottom end is defined by a reflective surface, the tube further comprising at least one hole for venting gas, and at least one hole for allowing liquid to enter.
Dependencies are inferred from the claim text.