The invention relates to a device for the reactive conversion of gaseous streams at high temperatures in excess of 1000° C. Said device comprises a reaction chamber (8) with an inlet opening for the gaseous streams to be converted, in particular a burner head (2) and an outlet opening for the c
The invention relates to a device for the reactive conversion of gaseous streams at high temperatures in excess of 1000° C. Said device comprises a reaction chamber (8) with an inlet opening for the gaseous streams to be converted, in particular a burner head (2) and an outlet opening for the converted gaseous streams. In order to guarantee the highest possible conversion performance, the reaction chamber (8) has a narrow construction, extending longitudinally from the inlet opening to the outlet opening to form a controlled gaseous flow, thus preventing a circulatory flow in the reaction chamber (8). To achieve reaction conditions that are as adiabatic as possible, the reaction chamber (8) is thermally insulated with a layer (7) that has a porous foam and/or fiber structure. In the simplest embodiment, the reaction chamber (8) is cylindrical, thus achieving a tubular flow reactor construction for the entire device.
대표청구항▼
The invention claimed is: 1. A device for reacting streams of gas at temperatures exceeding 1000° C., comprising: a reaction space surrounded by a wall with an inflow opening for introducing gas streams to be reacted, and an outflow opening for discharging reacted gas streams, said reaction sp
The invention claimed is: 1. A device for reacting streams of gas at temperatures exceeding 1000° C., comprising: a reaction space surrounded by a wall with an inflow opening for introducing gas streams to be reacted, and an outflow opening for discharging reacted gas streams, said reaction space having a geometrical shape that prevents large-area circulation flows and that promotes a directed gas flow in the reaction space, with a lengthwise extension from the inflow opening to the outflow opening, and wherein the inner surface of said wall, facing the reaction space, is provided with a heat-insulating layer having a porous foam and/or fiber structure, said heat-insulating layer exhibiting a heat conduction of 0.14 to 0.5 W/mK at temperatures of up to 1600° C., the diameter of the inflow opening and the diameter of the outflow opening are both smaller than the largest diameter of the reaction space, the ratio of the area of the inflow opening cross section to the maximum reaction space cross section is between 1/2 and 1/20, and wherein the ratio of the diameter of the reaction space to the length of the reaction space is between 4/10 and 1/10. 2. A device according to claim 1, wherein said device further comprises an inlet area wherein the wall widens from the diameter of the inflow opening to the largest diameter of the reaction space at an angle of incline of the wall surface to the flow direction of the gas streams in the reaction space of less than 90°; said device further comprising a cylindrical area of the reaction space, said cylindrical area having a constant diameter and being connected to said inlet area; and said device further comprising an outlet area, connected to said cylindrical area, in which the diameter of the reaction space is reduced in the flow direction, said outlet area being connected to said outflow opening. 3. A device according to claim 1, wherein said device further comprises an inlet area wherein said wall widens from the diameter of said inflow opening to the largest diameter of the reaction space. 4. A device according to claim 3, wherein the wall in said inlet area widens at an angle of incline of the wall surface to the flow direction of the gas streams in the reaction space of less than 90°. 5. A device according to claim 4, further comprising a cylindrical area of the reaction space having a constant diameter which is connected to said inlet area. 6. A device according to claim 5, further comprising an outlet area, in which the diameter of the reaction space is reduced in the flow direction, which is connected to said cylindrical area. 7. A device according to claim 6, wherein said cylindrical area and/or said outlet area contains a catalyst material. 8. A device according to claim 1, wherein said heat-insulating layer consists of high temperature-resistant materials. 9. A device according to claim 1, wherein said foam and/or fiber structure is soft and flexible, but has a stable shape. 10. A device according to claim 1, wherein the surface of the heat-insulating layer has been subjected to surface treatment. 11. A device according to claim 1, wherein the heat-insulating layer comprises at least two components. 12. A device according to claim 11, wherein said components are coated over one another. 13. A device according to claim 1, wherein the reaction space is designed for a pressure of from 1 to 100 bar. 14. A device according to claim 1, wherein said inflow opening is made as a nozzle comprising an inner pipe and outer pipe that are arranged concentrically to one another for supply of gas streams, said nozzle being designed to permit a gas flow exit speed of up to 200 m/s. 15. A device according to claim 14, wherein said nozzle is made as a burner nozzle, and said inner pipe and outer pipe are connected to a source of an oxygen-containing gas or a fuel. 16. A device according to claim 15, wherein the burner nozzle is made as a swirl-plate burner nozzle comprising means for imposing a swirl on a gas stream flowing through said inner pipe, a gas stream flowing through said outer pipe, or gas streams flowing through both said inner pipe and said outer pipe. 17. A device according to claim 15, wherein the burner nozzle is made as a jet burner nozzle without means for imposing a swirling of a gas stream. 18. A device according to claim 1, wherein the reaction space is designed for an effective gas flow velocity of from 1 to 100 m/s. 19. A device according to claim 2, wherein said angle of incline of the wall surface is between 0° and 40°. 20. A device according to claim 2, wherein said cylindrical area and/or said outlet area contains a catalyst material. 21. A device according to claim 2, wherein the ratio of the area of the inflow opening cross section to the maximum reaction space cross section is advantageously between 1/3 and 1/15, and said angle of incline of the wall surface is between 30° and 45°. 22. A device according to claim 2, wherein the ratio of the area of the inflow opening cross section to the maximum reaction space cross section is advantageously between 1/4 and 1/10, and said angle of incline of the wall surface is between 30° and 45°. 23. A device according to claim 1, wherein the heat-insulating layer is made from Al2O3, SiO2, ZrO2, and/or tungsten.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (3)
Watson Richard William,GBX ; Graville Stephen Rhys,GBX, Apparatus for burning a combustible gas containing hydrogen sulfide.
Wrenn ; Jr. George E. (Clinton TN) Holcombe ; Jr. Cressie E. (Farragut TN), Multilayered thermal insulation formed of zirconia bonded layers of zirconia fibers and metal oxide fibers and method fo.
Joshi Mahendra L. ; Borders Harley A. ; Marin Ovidiu ; Charon Olivier, Self-cooled oxygen-fuel burner for use in high-temperature and high-particulate furnaces.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.