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US 10,330,340 B2Granted
Alternative coil for fired process heater
AssigneeUop LLC
InventorsQuan Yuan, Rajeswar Gattupalli, Ka Lok, William M. Hartman, Bryan J. Egolf
Life of this patent
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Abstract
An apparatus for a fired heater is presented. The fired heater is designed with a plurality of process coils inside a shell, and with a positioning of the burners for reducing the size of the fired heater. The shell has a general rectangular prismatic shape with combustion inlets for admitting combustion gases from the burners, and the process coils include at least two inlet ports and at least one outlet port.
Claims22
An apparatus for heating a process fluid, comprising:
- a shell having sides, an upper surface, a lower surface, combustion fluid inlets and a flue gas outlet, wherein the combustion fluid inlets are for admitting a combustion mixture;
- at least one process coil comprising at least two inlet ports, at least two U-shaped process tubes with the end of each tube in fluid communication with at least one outlet port, and disposed within the shell;
- at least two burners disposed within the shell and on opposite sides of the shell;
- a first manifold having an inlet and multiple outlets, wherein each outlet is in fluid communication with the first inlet port of the process coil;
- a second manifold having an inlet and multiple outlets, wherein each outlet is in fluid communication with the second inlet port of the process coil;
- and
- a third manifold having multiple inlets and an outlet, wherein each inlet is in fluid communication with the outlet of the process coil.
4 more elements
An apparatus for heating a process fluid, comprising:
- a shell having sides, an upper surface, a lower surface, combustion fluid inlets and a flue gas outlet, and wherein the shell has a substantially rectangular prismatic shape, with a height, a depth and a width;
- a plurality of process coils, each process coil comprising two inlet ports, a first inlet port and a second inlet port, two U-shaped process tubes with the end of each tube merging to form one outlet port, and disposed within the shell;
- and
- at least two burners disposed on the sides of the shell, and in an opposing configuration;
- wherein, the plurality of process coils have the inlet ports and outlet port on the upper surface, and the flue gas outlet is centered on the lower surface.
2 more elements
An apparatus for heating a process fluid, comprising:
- a shell having sides, an upper surface, a lower surface, combustion fluid inlets and a flue gas outlet;
- at least one process coil comprising two U-shaped sections, with each U-shaped section having a first end as an inlet port and a second end as an outlet port, the process coil has a configuration of four tubes in a parallel orientation, with two semi-circular tubular sections connecting the ends of pairs of the tubes, such that the tubes form a coil having two U-shaped sections, with each U-shaped section having an outer tube closer to the sides of the shell and an inner tube closer to the centerline of the shell, and wherein each U-shapes has the inner tube diameter smaller than the outer tube diameter;
- and
- at least two burners disposed on the lower surface of the shell, and in an opposing configuration toward the sides of the shell.
1 more element
Dependencies are inferred from the claim text.