Optimized burners for boiler applications
AssigneeRheem Manufacturing Company
InventorsAmin Akbarimonfared, Timothy J. Shellenberger, Leonard E. Chambers, Christopher Hertzberg, Juan Cervantes
Life of this patent
Estimating the term…
Abstract
A boiler can have a combustion chamber, a burner, a heat exchanger in fluid communication with the combustion chamber, and a flue for removing a combustion product from the boiler. The burner has a protruding taper shape such as a cone or similar shape. The protruding taper shape of the burner distributes heat to the heat exchanger more evenly than a cylindrical shaped burner thereby reducing heat losses at the combustion chamber wall and increasing the thermal efficiency. The protruding taper shape of the burner also reduces noise associated with the operation of the burner.
Claims19
A boiler comprising:
- a combustion chamber that is enclosed except for a combustion chamber inlet and a combustion chamber outlet;
- a burner disposed at the combustion chamber inlet of the combustion chamber, the burner having a protruding taper shape, the burner configured to receive a mixture of air and fuel, wherein the burner comprises a mesh with a non-uniform perforation pattern, such that at least three apertures are separated from each other at inconsistent distances, wherein the protruding taper shape of the burner eliminates harmonics emanating from the boiler at a firing rate between 2% and 40% of the maximum firing rating for the boiler and at a carbon dioxide range of 7% to 11.7% for a natural gas fuel;
- a heat exchanger having a heat exchanger inlet and a heat exchanger outlet, the heat exchanger inlet in fluid communication with the combustion chamber outlet of the combustion chamber;
- and
- a flue in fluid communication with the heat exchanger outlet for removing combustion product from the heat exchanger outlet.
A boiler comprising:
- a combustion chamber that is enclosed except for a combustion chamber inlet and a combustion chamber outlet;
- a burner disposed at the combustion chamber inlet of the combustion chamber, the burner having a protruding taper shape, the burner configured to receive a mixture of air and fuel, wherein the protruding taper shape of the burner eliminates harmonics emanating from the boiler at a firing rate between 2% and 40% of the maximum firing rating for the boiler and at a carbon dioxide range of 7% to 11.7% for a natural gas fuel;
- a heat exchanger having a heat exchanger inlet and a heat exchanger outlet, the heat exchanger inlet in fluid communication with the combustion chamber outlet of the combustion chamber;
- and
- a flue in fluid communication with the heat exchanger outlet for removing combustion product from the heat exchanger outlet.
Dependencies are inferred from the claim text.