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US 2015/0027235 A1Published application
Optimized techniques for generating and measuring toroidal vortices via an industrial vortex flowmeter
AssigneeYokogawa Corporation of America
InventorMohamed Khalifa
Life of this patent
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Abstract
A vortex flowmeter may utilize a ring-shaped bluff body as the vortex generator or shedder. The ring shape and size of the vortex ring generator may be optimized to produce linear and stable toroidal vortex outputs that may outperform the conventional shedder bar. In comparison to the conventional vortex shedder bar, the ring may have a slimmer configuration and a higher K-factor, and hence, a higher resolution.
Claims20
An apparatus comprising:
- a ring-shaped bluff body configured to produce toroidal vortices when the bluff body is disposed within a flow of at least one fluid;
- and
- at least one transducer disposed adjacent to the ring-shaped bluff body to detect one or more mechanical effects induced by the toroidal vortices, wherein the at least one transducer is shielded from contact with the at least one fluid.
A flowmeter comprising:
- a ring-shaped bluff body configured to produce toroidal vortices when the bluff body is disposed within a flow of at least one fluid;
- and
- at least one transducer disposed adjacent to the ring-shaped bluff body to detect one or more mechanical effects induced by the toroidal vortices, wherein the at least one transducer is shielded from contact with the at least one fluid;
- at least one support for attaching the bluff body to a conduit body, the at least one support comprising:
- a first end coupled to the conduit body;
- and
- a distal second end coupled to the bluff body, wherein the bluff body is substantially centered within the conduit body with respect to the same axis as the conduit body.
4 more elements
A method comprising:
- disposing a ring-shaped bluff body within a flow of at least one fluid;
- disposing at least one transducer proximate to the ring-shaped bluff body;
- generating toroidal vortices at least in part with the ring-shaped bluff body;
- and
- detecting one or more mechanical effects induced by the toroidal vortices, with the at least one transducer, and wherein the at least one transducer is shielded from contact with the at least one fluid.
2 more elements
Dependencies are inferred from the claim text.