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US 12,742,671 B2Granted
Metering systems and methods
AssigneeSur-Flo Meters & Controls Ltd.
InventorsSteve Crawshaw, Simon Blackmore, Darrell Nelson
Life of this patent
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AssigneeSur-Flo Meters & Controls Ltd.
InventorsSteve Crawshaw, Simon Blackmore, Darrell Nelson
Estimating the term…
A flow meter run offers autonomous operation whilst improving measurement performance & confidence, increased safety and improving the total cost of ownership. A plurality of isolation valve assemblies each offer DBB (Double Block & Bleed) isolation to isolate a component or meter run section. This DBB isolation includes components being extracted from the main metering line. The meter run philosophy is detailed with use of a novel rotational orifice meter, though other flow meters may be substituted. The flow meter run also features extractable filters, a rotational and extractable flow conditioner which includes open and blind isolation components. The rotational orifice meter can house several independent orifice plates or nozzles and extractable sample probes and temperature elements. Further instrument sensors include the direct (non-inferred) measurement of density and/or viscosity. The system is configured for multiple sensors to monitor performance, autonomy, validation and isolation.
A rotary chamber isolation valve selectively operable to establish isolation between two sections of a flow meter run, said rotary chamber isolation valve comprising a housing having an internal chamber containing rotatable discs, each having different spots thereon that, via rotation of said rotatable discs, are selectively movable into and out of a working position residing inline of the two sections of said flow meter run to change a flow status of said rotary chamber isolation valve between a closed state establishing said isolation between said two sections of the flow meter run, and at least one flow state that allows flow between said two sections of the flow meter run.
Dependencies are inferred from the claim text.