Combustion system with perforated flame holder and swirl stablized preheating flame
AssigneeClearsign Combustion Corporation
InventorsDONALD KENDRICK, CHRISTOPHER A. WIKLOF
Life of this patent
Estimating the term…
Abstract
A combustion system supports a swirl-stabilized preheating flame with a preheating fuel and an oxidant. The combustion system preheats a perforated flame holder with the preheating flame. After the perforated flame holder has been preheated to the threshold temperature, the combustion system outputs a primary fuel. The perforated flame holder receives a mixture of the primary fuel and the oxidant supports a combustion reaction of the primary fuel and the oxidant.
Claims57
A combustion system, comprising:
- an oxidant source configured to output an oxidant into a furnace volume;
- one or more preheating fuel distributors configured to output a preheating fuel and to support a swirl-stabilized preheating flame of the preheating fuel and the oxidant during a preheating state;
- one or more primary fuel distributors positioned peripherally to the one or more preheating fuel distributors and configured to output a primary fuel into the furnace volume during a standard operating state;
- and
- a perforated flame holder positioned to be preheated by the preheating flame during the preheating state and then to receive a mixture of the primary fuel and the oxidant after preheating is complete, during the standard operating state, the perforated flame holder being configured to hold a combustion reaction of the primary fuel and the oxidant within the perforated flame holder.
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A method comprising:
- outputting an oxidant into a furnace volume;
- outputting a preheating fuel into the furnace volume;
- supporting a swirl-stabilized preheating flame with the preheating fuel and the oxidant;
- preheating a perforated flame holder positioned in the furnace volume with the preheating flame;
- outputting a primary fuel into the furnace volume;
- receiving a mixture of the primary fuel and the oxidant in the perforated flame holder;
- and
- supporting a combustion reaction of the primary fuel and the oxidant in the perforated flame holder.
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A combustion system, comprising:
- a perforated flame holder positioned in a furnace volume;
- an oxidant source configured to output an oxidant into the furnace volume;
- a preheating fuel distributor, including:
- a preheating fuel riser having an interior channel configured to convey a preheating fuel;
- one or more orifices communicably coupled to the interior channel of the preheating fuel riser and configured to output the preheating fuel;
- and
- a swirler positioned downstream from the orifices and configured to impart a swirling motion to the preheating fuel, the preheating fuel distributor being configured to support a swirl-stabilized preheating flame of the preheating fuel and the oxidant at a position selected to preheat the perforated flame holder;
- and
- a primary fuel distributor configured to output a primary fuel toward the perforated flame holder after the perforated flame holder has been preheated by the preheating flame, the perforated flame holder being configured to support a combustion reaction of the preheating flame at least partially within the perforated flame holder.
Dependencies are inferred from the claim text.