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US 10,378,760 B2Granted
Lean gas burner
AssigneeCogebio
InventorsLouis Rousseau, Etienne Lebas, Christian Bedrossian, Adrien Queuche
Life of this patent
Estimating the term…
Abstract
A gas burner for burning a gas with a low calorific value. The gas burner may be for burning a synthesis gas issuing from the gasification of biomass.
Claims19
A gas burner for burning a gas having a low calorific value, the gas burner comprising:
- a cylindrical body having:
- a first annular zone formed between an external wall thereof and an internal wall thereof, and which extends substantially parallel to the external wall wherein the external wall has a base at an upstream distal end thereof;
- a second annular zone formed downstream of the first zone between the external wall and the internal wall, wherein the first annular zone is separated from the second annular zone by a partition;
- a first opening formed in the base, to supply the gas, and which extends substantially parallel to a longitudinal axis of the cylindrical body;
- a second opening to supply primary air, and which is formed in the external wall in fluidic communication with the first annular zone;
- a third opening to supply secondary air, and which is formed in the external wall in fluidic communication with the second annular zone;
- an annular slot to introduce the primary air from the first annular zone into a combustion zone, the annular slot being formed between the external wall and an upstream end of the internal wall, and formed such that the primary air is supplied to the combustion zone in the form of a conical sheet of air, and creates a compression zone;
- and
- orifices formed in the internal wall to introduce the secondary air from the second annular zone into the combustion zone, and are disposed so as to allow swirling of the secondary air.
6 more elements
A system, comprising:
- a biomass gasifier;
- and
- a gas burner for burning a gas having a low calorific value, the gas burner including a cylindrical body having:
- a first annular zone formed between an external wall thereof and an internal wall thereof, and which extends substantially parallel to the external wall, wherein the external wall has a base at an upstream distal end thereof;
- a second annular zone formed downstream of the first zone between the external wall and the internal wall, wherein the first annular zone is separated from the second annular zone by a partition;
- a first opening, formed in the base, to supply the gas, and which extends substantially parallel to a longitudinal axis of the cylindrical body;
- a second opening to supply primary air, and which is formed in the external wall in fluidic communication with the first annular zone;
- a third opening to supply secondary air, and which is formed in the external wall in fluidic communication with the second annular zone;
- an annular slot to introduce the primary air from the first annular zone into a combustion zone, the annular slot being formed between the external wall and an upstream end of the internal wall, and formed such that the primary air is supplied to the combustion zone in the form of a conical sheet of air, and creates a compression zone;
- and
- orifices formed in the internal wall to introduce the secondary air from the second annular zone into the combustion zone, and are disposed so as to allow swirling of the secondary air.
8 more elements
A gas burner, comprising:
- a gas burner body having:
- an external wall and an internal wall defining a combustion zone, wherein the external wall further has a base at an upstream distal end thereof;
- a partition extending from the external wall to the internal wall to define a first annular zone and a second annular zone formed downstream of the first zone;
- a first opening, formed in the base, to supply a gas to the combustion zone;
- a second opening formed in the external wall in fluidic communication with the first annular zone to supply primary air to the first annular zone;
- a third opening formed in the external wall in fluidic communication with the second annular zone to supply secondary air to the second annular zone;
- an annular slot formed between the external wall and an upstream end of the internal wall to introduce the primary air from the first annular zone into the combustion zone, the annular slot being formed to supply the primary air in the form of a conical sheet of air which forms a compression zone in the combustion zone;
- and
- orifices formed in the internal wall to introduce the secondary air from the second annular zone into the combustion zone, and are disposed to allow rotation and swirling of the secondary air.
6 more elements
Dependencies are inferred from the claim text.