Apparatus for failsafe metering of a fluid

Patent · Tue Dec 12 04:00:00 EST 1989

OSTI ID:7016621

Hays, G F

This patent describes an assembly for introducing a predetermined volume of a plurality of liquids into a process fluid at a predetermined time cycle without the aid of a pump. It comprises; a plurality of storage tanks for the liquids; a metering chamber of predetermined volume associated with a respective storage tank, the metering chamber being vertically disposed below the storage tank; an inlet conduit for returning process fluid to the process unit; an eductor assembly associated with each metering chamber; conduit means in fluid communication with the conduits and the eductor assembly associated with each metering chamber; valve assembly means associated with each metering chamber having three ports for providing fluid flow between a first port and a second port of the valve assembly in a first position and for providing fluid flow between the second port and a third port of the valve assembly in a second position thereof; first conduit means for providing fluid communication between a respective one of the plurality of storage tanks and a first port of the valve assembly; second conduit means for providing fluid communication between a second port of the valve assembly and the metering chamber; third conduit means for providing fluid communication between a third port of the valve assembly means and the eductor assembly; and timer means for placing valve assembly in the first position from the second position.

• Assignee: Ashland Oil Inc., Russell, KY
• Patent Number(s): A; US 4886090
• Application Number: PPN: US 7-277282A
• OSTI ID: 7016621
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
022000 -- Petroleum-- Transport
Handling
& Storage
023000* -- Petroleum-- Properties & Composition
CONTAINERS
CONTROL EQUIPMENT
DESIGN
ENERGY SOURCES
EQUIPMENT
FLOW RATE
FLOW REGULATORS
FLOWMETERS
FLUID FLOW
FOSSIL FUELS
FUELS
LIQUID FLOW
MEASURING INSTRUMENTS
METERING
METERS
PETROLEUM
STORAGE
TANKS
VALVES
VOLUME