Coker feed method and apparatus
First Claim
1. A fluid dispensing apparatus for use with a delayed coke drum comprising the following components:
- (a) a spool that has a wall that encloses an interior space, where the top of the spool is coupled to the bottom of a delayed coke drum and the bottom of the spool is coupled to the top of a coke drum bottom deheader valve;
(b) a main pipe for supplying a primary fluid stream; and
(c) a split piping system that comprises an intersection where the primary fluid stream is split into two secondary fluid streams that flow in separate directions along separate legs of branch piping, where each leg of the branch piping (i) includes one or more block valves and (ii) terminates with an equal number of ports;
(d) entry pipes each connected to a port of each leg of the branch piping and to a spool inlet that allows fluid to flow into the interior space enclosed by the spool, each entry pipe being (i) being disposed to direct the fluid to flow into and towards the center of the spool and (ii) angled to dispense fluid into the interior space of the spool at an upward angle not greater than 30 degrees above the horizontal and equal to the upward angle(s) of the other entry pipes(s).
1 Assignment
0 Petitions
Accused Products
Abstract
Described herein are methods and mechanisms for laterally dispensing fluid to a coke drum in a predictable and maintainable manner that alleviates thermal stress. In one embodiment, the methods and mechanisms utilize a split piping system to dispense fluid through two or more inlets into a spool that is connected to a coke drum and a coke drum bottom deheader valve. A combination of block valves and clean out ports provides a more effective means to clean the lines and allows fluid to be laterally dispensed in a controllable and predictable manner. The fluid is preferably introduced to the spool in opposing directions toward a central vertical axis of the spool at equal but opposing angles ranging from minus thirty (−30) to thirty (30) degrees relative to a horizontal line laterally bisecting the spool. Alternatively, however, fluid can be introduced to the spool tangentially.
24 Citations
16 Claims
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1. A fluid dispensing apparatus for use with a delayed coke drum comprising the following components:
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(a) a spool that has a wall that encloses an interior space, where the top of the spool is coupled to the bottom of a delayed coke drum and the bottom of the spool is coupled to the top of a coke drum bottom deheader valve; (b) a main pipe for supplying a primary fluid stream; and (c) a split piping system that comprises an intersection where the primary fluid stream is split into two secondary fluid streams that flow in separate directions along separate legs of branch piping, where each leg of the branch piping (i) includes one or more block valves and (ii) terminates with an equal number of ports; (d) entry pipes each connected to a port of each leg of the branch piping and to a spool inlet that allows fluid to flow into the interior space enclosed by the spool, each entry pipe being (i) being disposed to direct the fluid to flow into and towards the center of the spool and (ii) angled to dispense fluid into the interior space of the spool at an upward angle not greater than 30 degrees above the horizontal and equal to the upward angle(s) of the other entry pipes(s). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A fluid dispensing method for delayed coking comprising the following steps:
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(a) supplying a spool that has a wall that encloses an interior space at the bottom of a delayed coke drum and where the bottom of the spool is coupled to the top of a coke drum bottom deheader valve; (b) supplying a primary fluid stream for the delayed coke drum through a main pipe; (c) routing the primary fluid stream through a split piping system that comprises an intersection where the primary fluid stream is split into two secondary fluid streams that flow in separate directions along separate legs of branch piping, where and where each leg of branch piping terminates with an equal number of ports that are each connected to an entry pipe which is also connected a spool inlet that allows fluid to flow into the interior space enclosed by the spool, each entry pipe being (i) being disposed to direct the fluid to flow into and towards the center of the spool and (ii) angled to dispense fluid into the interior space of the spool at an upward angle not greater than 30 degrees above the horizontal and equal to the upward angle(s) of the other entry pipes(s), and (d) dispensing the secondary fluid streams into the interior space of the spool through the spool inlets. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification