Burner and method for the chemical reaction of two gas streams
View Patent ↗The invention relates to a burner with a burner head ( 1 ) and a gas feed pipe ( 2 ) that is located in the burner head ( 1 ) and that is surrounded by an ring channel ( 3 ) for feed of another gas. In the gas feed pipe ( 2 ) and in the ring channel ( 3 ), there are means ( 10, 11 ) for producing a swirl of the gas flowing through the gas feed pipe ( 2 ) and that flowing through the ring channel ( 3 ).
1. A burner comprising a burner head, a gas feed pipe located in the burner head, and a ring channel which surrounds the gas feed pipe for feed of another gas, means for producing a swirl of a gas flowing through the gas feed pipe, and the ring channel, wherein the wall of the gas feed pipe ( 2 ) runs to an acute angle on its exit end ( 4 ) and the means ( 10 , 11 ) for producing a swirl in the gas feed pipe ( 2 ) or the ring channel ( 3 ) is set back upstream from the exit end ( 4 ) by 0.1 to 10 times the outside diameter of the means ( 10 , 11 ) for producing a swirl.
2. A burner according to claim 1 , wherein the means for producing a swirl located in the gas feed pipe has a hole that runs parallel to the burner axis.
3. A burner according to claim 1 , wherein the inside diameter of the gas feed pipe ( 2 ) decreases in the area of the exit end.
4. A burner according to claim 1 , wherein the outside diameter of the gas feed pipe ( 2 ) decreases in the area of its exit end.
5. A burner according to claim 1 , wherein the outside wall of the ring channel ( 3 ) is tilted in the area of the exit end in the flow direction of the burner axis ( 5 ).
6. A burner according to claim 1 , wherein the outside wall of the ring channel ( 3 ) extends in the flow direction beyond the exit end of the gas feed pipe ( 2 ).
7. A burner according to claim 1 , wherein an annular guide sleeve ( 8 ) adjoins the ring channel ( 3 ) in the flow direction, and its outside wall runs essentially parallel to the burner axis ( 5 ).
8. A burner according to claim 7 , wherein the annular guide sleeve ( 8 ) is adjoined by a mixing chamber ( 9 ) with an inside diameter that increases in the flow direction.
9. A burner according to claim 1 , wherein the ring channel ( 3 ) or is adjoined by a mixing chamber ( 9 ) with an inside diameter that increases in the flow direction.
10. A burner according to claim 1 , wherein the means ( 10 , 11 ) for producing a swirl in the gas feed pipe ( 2 ) and/or in the ring channel ( 3 ) have flow channels ( 12 ) that are tilted tangentially against the flow direction.
11. A burner according to claim 1 , wherein the means ( 10 , 11 ) for producing a swirl in the gas feed pipe ( 2 ) and/or in the ring channel ( 3 ) are adjustable in order to produce swirl flows of varied velocity.
12. A burner according to claim 1 , further comprising means for supplying an oxygen-containing gas, is connected to the gas feed pipe ( 2 ), and means for supplying a combustible gas is connected to the ring channel ( 3 ).
13. A burner according to claim 12 , wherein said oxygen-containing gas is pure oxygen.
14. A burner according to claim 1 , further comprising means for supplying a combustible gas is connected to the gas feed pipe ( 2 ), and means for supplying an oxygen-containing gas is connected to the ring channel ( 3 ).
15. A burner according to claim 14 , wherein said oxygen-containing gas is pure oxygen.
16. A burner according to claim 1 , further comprising a blade for stabilizing gas flow in the gas feed pipe ( 2 ) and/or the ring channel ( 3 ).
17. A burner according to claim 16 , wherein the blade is set back against the exit end of the gas feed pipe ( 2 ) or of the ring channel ( 3 ).
18. A burner according to claim 1 , wherein the means ( 10 , 11 ) is set back upstream from the exit end ( 4 ) by 0.5 to 5 times the outside diameter of the means ( 10 , 11 ).
19. A burner according to claim 1 , wherein the means ( 10 , 11 ) is set back upstream from the exit end ( 4 ) by 0.5 to 2 times the outside diameter of the means ( 10 , 11 ).
20. A process for producing a reaction product by chemical reaction of gases that are supplied to a reaction space by means of a burner according to claim 1 , as two separate gas streams and are chemically reacted in the reaction space, wherein a swirl flow is impressed on the two separate gas streams before entering the reaction space.
21. A process according to claim 20 , wherein the swirl flows impressed on the two gas streams are in the same direction.
22. A process according to claim 20 , wherein the flow velocities of the two gas streams differ by at least 10%.
23. A process according to claim 22 , wherein the velocities of the 2 gas streams differ by at least 20%.
24. A process according to claim 20 , wherein the total swirl number of the two swirl flows is between 0.1 and 1.2.
25. A process according to claim 20 , wherein the flow velocities of the gas streams are between 15 and 200 m/s.
26. A process according to claim 25 , wherein the flow velocities of the gas streams are between 70 and 150 m/s.
27. A process according to claim 20 , wherein an oxygen-containing gas and a hydrogen sulfide-containing gas are chemically reacted.
28. A process according to claim 20 , wherein halogenated hydrocarbons or pyrolysis oils are reacted with an oxygen-containing gas.
29. A process according to claim 20 , wherein hydrocarbons are reacted with an oxygen-containing gas for producing carbon black.