Valves and control systems for clean fluid pressure equalization and de-energization
AssigneeE3 LLC
InventorsDaniel Fink, Clayton Dale
Life of this patent
Estimating the term…
Abstract
A pressure control system configured to respond to high-pressure conditions in a fluid conduit is disclosed. The system generally includes first and second flow restrictors positionable inline on a fluid conduit and configured to block fluid flow in the conduit and respond to a high-pressure event to allow fluid flow therethrough. The first flow restrictor is position upstream from the second flow restrictor and may open to allow fluid flow in response to the high-pressure event. The second flow restrictor provides adjustable flow of fluid therethrough or may open a bypass line in response to the high-pressure event to allow unrestricted fluid flow therethrough.
Claims19
A flow restrictor system for pressure relief in a fluid conduit, the system comprising:
- a first flow restrictor comprising:
- a sleeve having an inlet end, an outlet end, and a longitudinal bore therebetween,
- an insert positioned within the longitudinal bore and sealed against an inner wall thereof, the insert comprising a plurality of longitudinal perforations that provide fluid passage through the longitudinal bore, and
- a plurality of ports positioned radially through the sleeve, each port in fluid communication with one of the plurality of longitudinal perforations, wherein each port comprises an adjustable plunger configured to move within the port to adjustably restrict fluid flow through the longitudinal perforation,
- wherein the insert comprises a bypass port configured to provide fluid flow that bypasses the plurality of longitudinal perforations, the bypass port maintained in a closed position by a piston, wherein the piston is configured to open responsive of a high-pressure condition.
Dependencies are inferred from the claim text.