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US 9,587,822 B2Granted
Internal combustion burner
AssigneeSaint-Gobain Isover
InventorsOleg Boulanov, Christopher Ellison
Life of this patent
Estimating the term…
Abstract
An internal combustion burner including a combustion chamber supplied with fuel and with oxidant and at least two combustion devices supplied with oxidant and with fuel. Combining two combustion devices of distinct configurations, which respectively generate two distinct types of flames with a system for cooling the walls of the burner by introducing air along the walls, makes it possible to obtain a burner that supplies a combustion gas temperature of up to 1700° C., while at the same time being easily cooled and occupying very little space so that it can, for example, be housed in an existing installation used in the manufacture of rock wool or glass wool.
Claims29
An internal combustion burner comprising:
- a combustion chamber supplied with fuel and with oxidant, the chamber comprising a casing including a first end which is closed and with an opposite exhaust second end which is open and via which the combustion gases escape, the casing including at least two opposite walls connecting the two ends,
- and further comprising in the chamber and at the closed first end, at least two combustion devices supplied with oxidant and with fuel, the at least two combustion devices include a first type of combustion device and a second type of combustion device that are configured differently so as respectively to generate two distinct types of flame, and including a system for cooling the two opposite walls by introducing a cooling gas along the two opposite walls,
- wherein each combustion device includes a body having a first face facing an exterior of the combustion chamber at the first end and a second face opposite to the first face and facing an interior of the combustion chamber, the body including plural oxidant supply ducts and one fuel supply duct passing through a thickness of the body from one face to the other, with an axis of the fuel supply duct being perpendicular to the faces of the body,
- wherein the first type of combustion device and the second type of combustion device are arranged alternating in a ring on the first face of the body facing the exterior of the combustion chamber,
- wherein in a case of one of the combustion devices, the oxidant supply ducts are inclined with respect to the axis of the central fuel supply duct and each oxidant supply duct includes an inlet on the first face of the body of the device and an outlet opening onto the surface of the second face of the body of the device, the inlets and the outlets of the ducts being arranged in circles around the central fuel supply duct,
- wherein in the case of one of the combustion devices, a diameter of the circle of the plural inlets arranged around the central fuel supply duct have a same size as a diameter of the circle of the plural outlets arranged around the central fuel supply duct, and
- wherein, for each of the plural inlets and outlets, a diameter of the inlet is the same as a diameter of the corresponding outlet.
4 more elements
An internal combustion burner comprising:
- a combustion chamber supplied with fuel and with oxidant, the chamber comprising a casing including a first end which is closed and with an opposite exhaust second end which is open and via which the combustion gases escape, the casing including at least two opposite walls connecting the two ends,
- and further comprising in the chamber and at the closed first end, at least two combustion devices supplied with oxidant and with fuel, the at least two combustion devices are positioned adjacent each other, the at least two combustion devices include a first type of combustion device and a second type of combustion device and are configured differently so as respectively to generate two distinct types of flame, and including a system for cooling the two opposite walls by introducing a cooling gas along the two opposite walls,
- wherein each combustion device includes a body having a first face facing an exterior of the combustion chamber at the first end and a second face opposite to the first face and facing an interior of the combustion chamber, the body including plural oxidant supply ducts and one fuel supply duct passing through a thickness of the body from one face to the other, with an axis of the fuel supply duct being perpendicular to the faces of the body,
- wherein the first type of combustion device and the second type of combustion device are arranged alternating in a ring on the first face of the body facing the exterior of the combustion chamber,
- wherein in a case of one of the at least two combustion devices, the oxidant supply ducts are inclined with respect to the axis of the central fuel supply duct and each oxidant supply duct includes an inlet on the first face of the body of the device and an outlet opening onto the surface of the second face of the body of the device, the inlets and the outlets of the ducts being arranged in circles around the central fuel supply duct, the circles of the inlets and the outlets of the ducts arranged about the central fuel supply duct have different diameters, and a diameter of the circle formed by the outlets has a smaller diameter than a diameter of the circle formed by the inlets, and
- wherein in a case of one of the at least two combustion devices, the oxidant supply ducts are inclined with respect to the axis of the central fuel supply duct and each oxidant supply duct includes an inlet on the first face of the body of the device and an outlet opening onto the surface of the second face of the body of the device, wherein the inlets and the outlets of the ducts are arranged in circles around the central fuel supply duct, a diameter of the circle of the plural inlets arranged around the central fuel supply duct has a same size as a diameter of the circle of the plural outlets arranged around the central fuel supply duct, and
- wherein for each of the plural inlets and outlets, a diameter of the inlet is the same as a diameter of the corresponding outlet.
4 more elements
A fiberizing installation comprising one or more burners, the one or more burners comprising
- a combustion chamber supplied with fuel and with oxidant, the chamber comprising a casing including a first end which is closed and with an opposite exhaust second end which is open and via which the combustion gases escape, the casing including at least two opposite walls connecting the two ends,
- and further comprising in the chamber and at the closed first end, at least two combustion devices supplied with oxidant and with fuel, the at least two combustion devices are positioned adjacent each other, the at least two combustion devices include a first type of combustion device and a second type of combustion device and are configured differently so as respectively to generate two distinct types of flame, and including a system for cooling the two opposite walls by introducing a cooling gas along the two opposite walls,
- wherein each combustion device includes a body having a first face facing an exterior of the combustion chamber at the first end and a second face opposite to the first face and facing an interior of the combustion chamber, the body including plural oxidant supply ducts and one fuel supply duct passing through a thickness of the body from one face to the other, with an axis of the fuel supply duct being perpendicular to the faces of the body,
- wherein the first type of combustion device and the second type of combustion device are arranged alternating in a ring on the first face of the body facing the exterior of the combustion chamber,
- wherein in a case of one of the at least two combustion devices, the oxidant supply ducts are inclined with respect to the axis of the central fuel supply duct and each oxidant supply duct includes an inlet on the first face of the body of the device and an outlet opening onto the surface of the second face of the body of the device, the inlets and the outlets of the ducts being arranged in circles around the central fuel supply duct, the circles of the inlets and the outlets of the ducts arranged about the central fuel supply duct have different diameters, and a diameter of the circle formed by the outlets has a smaller diameter than a diameter of the circle formed by the inlets, and
- wherein in a case of one of the at least two combustion devices, the oxidant supply ducts are inclined with respect to the axis of the central fuel supply duct and each oxidant supply duct includes an inlet on the first face of the body of the device and an outlet opening onto the surface of the second face of the body of the device, wherein the inlets and the outlets of the ducts are arranged in circles around the central fuel supply duct, a diameter of the circle of the plural inlets arranged around the central fuel supply duct has a same size as a diameter of the circle of the plural outlets arranged around the central fuel supply duct, and
- wherein for each of the plural inlets and outlets, a diameter of the inlet is the same as a diameter of the corresponding outlet.
4 more elements
A fiberizing installation comprising one or more burners, the one or more burners comprising
- a combustion chamber supplied with fuel and with oxidant, the chamber comprising a casing including a first end which is closed and with an opposite exhaust second end which is open and via which the combustion gases escape, the casing including at least two opposite walls connecting the two ends,
- and further comprising in the chamber and at the closed first end, at least two combustion devices supplied with oxidant and with fuel, the at least two combustion devices include a first type of combustion device and a second type of combustion device that are configured differently so as respectively to generate two distinct types of flame, and including a system for cooling the two opposite walls by introducing a cooling gas along the two opposite walls,
- wherein each combustion device includes a body having a first face facing an exterior of the combustion chamber at the first end and a second face opposite to the first face and facing an interior of the combustion chamber, the body including plural oxidant supply ducts and one fuel supply duct passing through a thickness of the body from one face to the other, with an axis of the fuel supply duct being perpendicular to the faces of the body,
- wherein the first type of combustion device and the second type of combustion device are arranged alternating in a ring on the first face of the body facing the exterior of the combustion chamber,
- wherein in a case of one of the combustion devices, the oxidant supply ducts are inclined with respect to the axis of the central fuel supply duct and each oxidant supply duct includes an inlet on the first face of the body of the device and an outlet opening onto the surface of the second face of the body of the device, the inlets and the outlets of the ducts being arranged in circles around the central fuel supply duct,
- wherein in the case of one of the combustion devices, a diameter of the circle of the plural inlets arranged around the central fuel supply duct have a same size as a diameter of the circle of the plural outlets arranged around the central fuel supply duct, and
- wherein, for each of the plural inlets and outlets, a diameter of the inlet is the same as a diameter of the corresponding outlet.
4 more elements
Dependencies are inferred from the claim text.