The invention relates to an arrangement (1) for the combustion of granular, solid fuel, for example wood-flour pellets, chips and the like, comprising a preferably horizontal combustion chamber ( 16), a dispensing unit (3) for feeding the fuel into the combustion chamber via fuel feed pipe (15), air
The invention relates to an arrangement (1) for the combustion of granular, solid fuel, for example wood-flour pellets, chips and the like, comprising a preferably horizontal combustion chamber ( 16), a dispensing unit (3) for feeding the fuel into the combustion chamber via fuel feed pipe (15), air inlets (22, 23) with blower (18) for the delivery of primary air (P) to the combustion chamber via at least one air duct or air chamber (24, 25) in order to produce a flow of air through the combustion chamber and the fuel for a primary combustion of the fuel to combustion gases, and for the delivery of secondary air (S) to a secondary combustion chamber (26) via a secondary air distributor (26A) in order to produce a secondary combustion of the combustion gases formed in the primary combustion together with a common outlet (47) for the primary air, the combustion gases and the secondary air from the secondary combustion chamber to a boiler space (12) in a broiler (2) for transmitting the heat from the said primary and secondary combustion to the heat supply system of the boiler. According to the invention the secondary air distributor also comprises a fan (49) for producing an air and combustion gas vortex (50) inside the secondary combustion chamber and on out through the outlet (47) to the boiler space. The invention also relates to a method of combustion comprising such a combustion arrangement.
대표청구항▼
What is claimed is: 1. Arrangement (1) for the combustion of granular, solid fuel comprising: a combustion chamber (16); a dispensing unit (3) for feeding the fuel into the combustion chamber (16) via a fuel feed pipe (15) which opens into a centre of rotation of the combustion chamber (16); air i
What is claimed is: 1. Arrangement (1) for the combustion of granular, solid fuel comprising: a combustion chamber (16); a dispensing unit (3) for feeding the fuel into the combustion chamber (16) via a fuel feed pipe (15) which opens into a centre of rotation of the combustion chamber (16); air inlets (22, 23) with blower (18) for the delivery of primary air (P) to the combustion chamber (16) via at least one air duct or air chamber (24, 25) in order to produce a flow of air through the combustion chamber (16) and the fuel for a primary combustion of the fuel to combustion gases, and for the delivery of secondary air (S) to a secondary combustion chamber ( 26) via a secondary air distributor (26A) in order to produce a secondary combustion of the combustion gases formed in the primary combustion; a common outlet (47) for the primary air (P), the combustion gases and the secondary air (S) from the secondary combustion chamber (26) to a boiler space (12) in a boiler (2) for transmitting the heat from the said primary and secondary combustion to the heat supply system of the boiler (2); and the secondary air distributor (26A) being designed to deliver the secondary air radially inwards towards the centre of the secondary combustion chamber (26) so that combustion is concentrated at a distance from walls of the secondary combustion chamber (26); wherein at least the combustion chamber (16) is rotatable; wherein the secondary air distributor also comprises a fan (49) for producing an air and combustion gas vortex (50) inside the secondary combustion chamber (26) and on out through the outlet (47) to the boiler space (12). 2. Combustion arrangement according to claim 1, characterized in that the secondary air distributor (26A) also comprises an inner edge flange (41) in the form of an annular edge flange ( 41) and an outer edge flange (37), between which flanges the secondary air is led and directed radially inwards. 3. Combustion arrangement according to claim 1, characterized in that the combustion arrangement (1) also comprises a drive motor (17) for a continuous or intermittent rotation of the fan (49). 4. Combustion arrangement according to claim 3, characterized in that the drive motor (17) is also designed to rotate the combustion chamber (16) and the secondary combustion chamber ( 26). 5. Combustion arrangement according to claim 1, characterized in that the fuel feed pipe (15), the combustion chamber (16) , the existing air inlets (22, 23) and the air chambers ( 24, 25) are arranged concentrically in relation to one another with a common axis (33). 6. Combustion arrangement according to claim 1, characterized in that the fan (49) comprises a plurality of fan blades (49 B) which are arranged in the secondary air distributor (26A). 7. Combustion arrangement according to claim 6, characterized in that the fan blades (49B) are arranged around the circumference of the secondary air distributor (26A). 8. Combustion arrangement according to claim 6, characterized in that the fan blades (49B) have a certain defined axial plane along the axis of rotation (33). 9. Combustion arrangement according to claim 6, characterized in that the fan blades (49B) have a certain defined radial angle to a plane along the axis of rotation (33). 10. Combustion arrangement according to claim 1, characterized in that the combustion arrangement (1) comprises separate air ducts or air chambers (24, 25) for the primary air (P) and the secondary air (S). 11. Combustion arrangement according to claim 1, characterized in that at least the combustion chamber (16) has internal cross-section which is polygonal. 12. Combustion arrangement according to claim 1, characterized in that at least the combustion chamber (16) has internal cross-section which is provided with longitudinal or helical vanes for tumbling the fuel as the combustion chamber (16) rotates. 13. Combustion arrangement according to claim 1, characterized in that the combustion arrangement (1) comprises two circular cylindrical drums (23, 25) which are arranged concentrically in tandem on the outside of the air inlet (22), the air ducts or the air chamber (24) respectively in order to form an outer air inlet (23) and outer air ducts or air chamber (25) for the delivery of secondary air (S) to the secondary combustion chamber (26) via the secondary air distributor (26A), while only primary air (P) is delivered to the combustion chamber (16) via the air inlet (22) and the air ducts or the air chamber ( 24). 14. Combustion arrangement according to claim 1, characterized in that the secondary air distributor (26A) comprises an inner and an outer edge flange (41, 37), which inner edge flange (41) and inner boundary wall (40) of the combustion chamber (16), and outer edge flange (37) and outer wall (36) of the combustion part (21) are respectively arranged at a certain angle (α, β) to one another of between approximately 90째 and 180째. 15. Combustion arrangement according to claim 14, wherein the angles (α, β) are between approximately 90째 and 135째. 16. Method for the combustion of granular fuel, the method comprising the steps of: a. providing a combustion chamber (16) with an outlet end, b. providing a fuel feed pipe (15) which opens into a centre of rotation of the combustion chamber (16), c. providing a secondary combustion chamber (26) connected to the outlet end of the combustion chamber (16), the secondary combustion chamber (16) having walls, d. at least intermittently rotating at least the combustion chamber (16) e. delivering fuel through the fuel feed pipe (15) to the combustion chamber (16) so that the fuel is delivered centrally into the combustion chamber (16), f. delivering a primary air flow to the combustion chamber (16), g. combusting fuel in the combustion chamber (16) and h. delivering a secondary air flow at the outlet end of the combustion chamber (16), the secondary air flow being delivered around the periphery of the outlet end of the combustion chamber ( 16) and being directed radially inwards towards the centre of the secondary combustion chamber (26) so that further combustion takes place at a distance from the walls of the secondary combustion chamber (26); wherein the second air flow is fed through a fan (49) in which it is blown radially inwards towards the centre of the secondary combustion chamber; wherein the quantity of air is controlled by means of blowers so that of the total the air flow, 20% to 40% is made up of primary air and 60% to 80% of secondary air. 17. Arrangement (1) for the combustion of granular, solid fuel comprising: a combustion chamber (16); a dispensing unit (3) for feeding the fuel into the combustion chamber (16) via a fuel feed pipe (15) which opens into a centre of rotation of the combustion chamber (16); air inlets (22, 23) with blower (18) for the delivery of primary air (P) to the combustion chamber (16) via at least one air duct or air chamber (24, 25) in order to produce a flow of air through the combustion chamber (16) and the fuel for a primary combustion of the fuel to combustion gases, and for the delivery of secondary air (S) to a secondary combustion chamber ( 26) via a secondary air distributor (26A) in order to produce a secondary combustion of the combustion gases formed in the primary combustion; wherein the air inlets (22, 23) surround the fuel feed pipe (15) and the combustion chamber (16) such that they blow the primary air (P) radially inwards into the combustion chamber; a common outlet (47) for the primary air (P), the combustion gases and the secondary air (S) from the secondary combustion chamber (26) to a boiler space (12) in a boiler (2) for transmitting the heat from the said primary and secondary combustion to the heat supply system of the boiler (2); and the secondary air distributor (26A) being designed to deliver the secondary air radially inwards towards the centre of the secondary combustion chamber (26) so that combustion is concentrated at a distance from walls of the secondary combustion chamber (26). 18. Combustion arrangement according to claim 17, characterized in that the secondary air distributor also comprises a fan (49) for producing an air and combustion gas vortex (50) inside the secondary combustion chamber (26) and on out through the outlet (47) to the boiler space (12). 19. Combustion arrangement according to claim 17, characterized in that the secondary air distributor (26A) also comprises an inner edge flange (41) in the form of an annular edge flange (41) and an outer edge flange (37), between which flanges the secondary air is led and directed radially inwards. 20. Combustion arrangement according to claim 18, characterized in that the combustion arrangement (1) also comprises a drive motor (17) for a continuous or intermittent rotation of the fan (49). 21. Combustion arrangement according to claim 20, characterized in that the drive motor (17) is also designed to rotate the combustion chamber (16) and the secondary combustion chamber (26). 22. Combustion arrangement according to claim 17, characterized in that the fuel feed pipe (15), the combustion chamber (16), the existing air inlets (22, 23) and the air chambers (24, 25) are arranged concentrically in relation to one another with a common axis (33). 23. Combustion arrangement according to claim 18, characterized in that the fan (49) comprises a plurality of fan blades (49B) which are arranged in the secondary air distributor (26A). 24. Combustion arrangement according to claim 23, characterized in that the fan blades (49B) are arranged around the circumference of the secondary air distributor (26A). 25. Combustion arrangement according to claim 23, characterized in that the fan blades (49B) have a certain defined axial plane along the axis of rotation (33). 26. Combustion arrangement according to claim 23, characterized in that the fan blades (49B) have a certain defined radial angle to a plane along the axis of rotation (33). 27. Combustion arrangement according to claim 17, characterized in that the combustion arrangement (1) comprises separate air ducts or air chambers (24, 25) for the primary air (P) and the secondary air (S). 28. Combustion arrangement according to claim 17, characterized in that at least the combustion chamber (16) has internal cross-section which is polygonal. 29. Combustion arrangement according to claim 17, characterized in that at least the combustion chamber (16) has internal cross-section which is provided with longitudinal or helical vanes for tumbling the fuel as the combustion chamber (16) rotates. 30. Combustion arrangement according to claim 17, characterized in that the combustion arrangement (1) comprises two circular cylindrical drums (23, 25) which are arranged concentrically in tandem on the outside of the air inlet (22), the air ducts or the air chamber (24) respectively in order to form an outer air inlet (23) and outer air ducts or air chamber (25) for the delivery of secondary air (S) to the secondary combustion chamber (26) via the secondary air distributor (26A), while only primary air (P) is delivered to the combustion chamber (16) via the air inlet (22) and the air ducts or the air chamber ( 24). 31. Combustion arrangement according to claim 17, characterized in that the secondary air distributor (26A) comprises an inner and an outer edge flange (41, 37), which inner edge flange (41) and inner boundary wall (40) of the combustion chamber (16), and outer edge flange (37) and outer wall (36) of the combustion part (21) are respectively arranged at a certain angle (α, β) to one another of between approximately 90째 and 180째. 32. Combustion arrangement according to claim 31, wherein the angles (α, β) are between approximately 90째 and 135째.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (4)
Wright Richard C. (Mequon WI), Bio-mass suspension burner.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.