Back to results
US 11,415,316 B2Granted
Combustion system with perforated flame holder and swirl stabilized preheating flame
AssigneeClearSign Technologies Cosporation
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.
Claims47
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.
2 more elements
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.
5 more elements
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.
6 more elements
Dependencies are inferred from the claim text.