Level detector for measuring foam and aerated slurry level in a wet flue gas desulfurization absorber tower
First Claim
1. A foam and aerated slurry level detector comprising:
- a sleeve mountable to a vessel and extendable through a wall defined by the vessel into an interior area defined by the vessel, the sleeve being mountable at an angle of less than forty-five degrees relative to the wall defined by the vessel;
a level sensing probe configured to measure a plurality of foam and aerated slurry levels in the vessel, to extend into a bore defined by an inside surface of the sleeve, and to communicate with the interior area via at least one opening in the sleeve which extends into the bore;
at least one connector positioned outside of the vessel and configured to removably support the level sensing probe within the bore;
a liquid level sensor mounted to the vessel and extended through the wall into the interior area of the vessel to measure liquid level; and
a comparator module in communication with the liquid level sensor and the level sensing probe to determine a foam and aerated slurry level by subtracting a liquid level measured generated by the liquid level sensor, from another level measurement generated by the level sensing probe.
2 Assignments
0 Petitions
Accused Products
Abstract
A level detector 100 includes a sleeve 210 mountable to a vessel and extendable through a wall 212 defined by the vessel 212A and into an interior area 214 defined by the vessel. The sleeve 210 is mountable at an angle A of less than forty-five degrees relative to the vessel wall 212. The level detector 100 includes a level sensing probe 230 extending into a bore defined by an inside surface 218 of the sleeve 210. The level sensing probe 230 is configured to measure a plurality of foam and aerated slurry levels in the vessel 212A. One or more connectors 232, 244 are positioned outside 212B of the vessel 212A to removably support the level sensing probe 230 within the bore. The level sensing probe 230 is in communication with the interior area 214 via one or more openings 254, 258 extending into the bore.
34 Citations
19 Claims
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1. A foam and aerated slurry level detector comprising:
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a sleeve mountable to a vessel and extendable through a wall defined by the vessel into an interior area defined by the vessel, the sleeve being mountable at an angle of less than forty-five degrees relative to the wall defined by the vessel; a level sensing probe configured to measure a plurality of foam and aerated slurry levels in the vessel, to extend into a bore defined by an inside surface of the sleeve, and to communicate with the interior area via at least one opening in the sleeve which extends into the bore; at least one connector positioned outside of the vessel and configured to removably support the level sensing probe within the bore; a liquid level sensor mounted to the vessel and extended through the wall into the interior area of the vessel to measure liquid level; and a comparator module in communication with the liquid level sensor and the level sensing probe to determine a foam and aerated slurry level by subtracting a liquid level measured generated by the liquid level sensor, from another level measurement generated by the level sensing probe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for detecting foam and aerated slurry in a vessel comprising:
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using a level sensing probe installed into a bore defined by an inside surface of a sleeve mounted to a vessel to extend through a wall defined by the vessel into an interior area of the vessel with the sleeve mounted at an angle of less than forty-five degrees relative to the wall defined by the vessel, to measure liquid, foam and aerated slurry level; using a liquid level sensor mounted to the vessel and extended through the wall into the interior area of the vessel, to measure liquid level; and using a comparator module in communication with the liquid level sensor and the level sensing probe to determine a foam and aerated slurry level by subtracting a liquid level measurement generated by the liquid level sensor, from another level measurement generated by the level sensing probe.
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Specification