Flushing System for Use in Delayed Coking Systems
AssigneeDeltaValve, LLC
InventorRuben F. Lah
Life of this patent
Estimating the term…
Abstract
The present invention provides a de-header valve with a flushing system for flushing undesirable material from the upper and lower bonnets while the de-header valve is opened. The flushing system can include three valves. A first valve controls the flow of steam to the de-header valve. A second valve controls the flow of water for flushing the bonnets. A third valve controls how the bonnets are drained. The third valve can be a three way valve that allows the bonnets to be drained to a pit during flushing, and also allows steam condensate to drain into a steam trap.
Claims20
A flushable de-header valve for a coke drum comprising:
- a main body portion configured to attach to a coke drum;
- an upper bonnet configured to attach to the main body portion, the upper bonnet including a cavity;
- a lower bonnet configured to attach to the main body portion opposite the upper bonnet, the lower bonnet including a cavity;
- and
- a flushing system for flushing undesirable material that enters the cavities of the upper and lower bonnets while the de-header valve is being opened.
The flushable de-header valve of 2, wherein the steam, water, and drain valves are configured with an electric actuator to allow remote control of the valves.
A de-header valve configured to attach to a coke drum used for delayed coking, the de-header valve comprising:
- a main body portion configured to attach to a coke drum;
- an upper bonnet configured to attach to the main body portion;
- a lower bonnet configured to attach to the main body portion opposite the upper bonnet;
- a flushing system for flushing undesirable material that enters the interior of the upper and lower bonnets while the de-header valve is being opened, the flushing system comprising:
- a steam valve for controlling the flow of steam into the interior of the upper and lower bonnets;
- a water valve for controlling the flow of water into the interior of the upper and lower bonnets;
- a drain valve for controlling the flow of water from the interior of the upper and lower bonnets;
- and
- a processing device for controlling the position of the steam, water, and drain valves.
Dependencies are inferred from the claim text.