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Title: Apparatus for failsafe metering of a fluid

Abstract

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 providingmore » 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.« less

Inventors:
Publication Date:
OSTI Identifier:
7016621
Patent Number(s):
US 4886090; A
Application Number:
PPN: US 7-277282A
Assignee:
Ashland Oil Inc., Russell, KY
Resource Type:
Patent
Resource Relation:
Patent File Date: 29 Nov 1988
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; FLOWMETERS; DESIGN; PETROLEUM; METERING; FLOW RATE; LIQUID FLOW; STORAGE; TANKS; VALVES; VOLUME; CONTAINERS; CONTROL EQUIPMENT; ENERGY SOURCES; EQUIPMENT; FLOW REGULATORS; FLUID FLOW; FOSSIL FUELS; FUELS; MEASURING INSTRUMENTS; METERS; 023000* - Petroleum- Properties & Composition; 022000 - Petroleum- Transport, Handling, & Storage

Citation Formats

Hays, G F. Apparatus for failsafe metering of a fluid. United States: N. p., 1989. Web.
Hays, G F. Apparatus for failsafe metering of a fluid. United States.
Hays, G F. Tue . "Apparatus for failsafe metering of a fluid". United States.
@article{osti_7016621,
title = {Apparatus for failsafe metering of a fluid},
author = {Hays, G F},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {12}
}