System and method for retrofitting a burner front and injecting a second fuel into a utility furnace
OwnerChristopher L. Abeytainventor
Life of this patent
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Abstract
This disclosure may relate generally to systems, devices, and methods for a injecting a compound through a sootblower, burner or other utility furnace hardware, such that the compound can be delivered to targeted areas on the inside of a utility furnace. In one embodiment, the compound is a chemical for improving environmental controls. In another embodiment, the compound is a fuel. In that embodiment, compound can facilitate retrofitting a burner to a dual fired utility furnace. In another embodiment, the compound is a chemical for removing slag from the furnace.
Claims19
A method of retrofitting a utility furnace, wherein the utility furnace has a burner front, wherein the burner front fires the utility furnace with a first fuel type, and wherein the burner front supplies combustion air associated with the combustion of the first fuel type, wherein the combustion air is delivered into the utility furnace via a delivery mechanism, wherein the combustion air comprises at least one of:
- primary air, secondary air, and tertiary air, the method comprising:
- connecting a source of a second fuel type to the delivery mechanism for the combustion air, wherein the connection is configured to introduce the second fuel type into the combustion air at a location outside of the burner front;
- wherein the first fuel type is a different type of fuel from the second fuel type.
A method of injecting a compound into a utility furnace comprising:
- injecting a compound into a preexisting fluid stream;
- wherein the preexisting fluid stream is a fluid stream carried in an already existing conveyance device, wherein the already existing conveyance device was connected to the utility furnace, in such a manner as to inject the preexisting fluid stream into the utility furnace, prior to retrofitting the utility furnace to provide the ability to inject the compound into the fluid stream;
- wherein the preexisting fluid stream comprises combustion air carrying a first fuel of a first fuel type;
- injecting the preexisting fluid stream, containing the compound, into the utility furnace through a burner front, wherein the compound comprises a second fuel of a second fuel type, the compound comprising one of:
- a solid, a liquid, and a gas;
- wherein the first fuel type is different from the second fuel type, and wherein the compound is injected at a location outside of the burner front.
A utility furnace comprising:
- a burner within a burner front;
- a delivery mechanism, wherein the delivery mechanism is configured to deliver combustion air into the utility furnace, wherein the delivery mechanism is configured to deliver combustion air into the utility furnace in the vicinity of the burner, wherein the combustion air comprises one of primary air, secondary air and tertiary air;
- a first fuel source of a first fuel provided to the burner, wherein the first fuel source is a first fuel type and is delivered to the utility furnace via the combustion air;
- and
- a second fuel source of a second fuel comprising a second fuel type that is different from the first fuel type, wherein the second fuel source is connected to the delivery mechanism at a location that is outside of the burner front, wherein the second fuel source is configured to inject the second fuel of the second fuel type into the combustion air in the delivery mechanism.
Dependencies are inferred from the claim text.