Mixing device
The invention relates to a mixing device which is arranged in a flow channel and a mixing method for mixing a fluid flowing through the flow channel in a main direction of flow. The mixing device has a plurality of mixer disks which generate leading edge eddies in a fluid flowing through the flow channel in a main direction of flow. The mixer disks are arranged in mixer disk rows in row axes running essentially across the main direction of flow. The mixer disk rows are arranged side by side in the main direction of flow in a common flow channel section where the mixer disks of neighboring mixer disk rows are alternately angled in a positive angle of attack and in a negative angle of attack with respect to the main direction of flow. According to this process, the fluid flowing through the flow channel is mixed thoroughly by a leading edge eddy system, whereby in the mixing method presented here at least two contra-rotating leading edge eddy systems are generated in a common flow channel section.
1. A mixing device, comprising a flow channel and a plurality of mixer slices being arranged in the flow channel, for creating leading edge eddies in a fluid flowing through the flow channel in a main direction of flow, whereby said mixer slices are arranged in individual mixer slices rows along row axes running essentially across the main direction of flow, and the mixer slices of each individual mixer slices row are angled in the same direction with respect to the main direction of flow and are situated partially overlapping in relation to the main direction of flow;
wherein the individual mixer slices rows are arranged side by side in a common flow channel section based on the main direction of flow, whose lengths correspond to the maximum longitudinal dimension of the largest mixer plate row, whereby the mixer slices of neighboring individual mixer slices rows are angled contrary to each other in a positive angle of attack (+α) and in a negative angle of attack (−α) with respect to the main direction of flow, and
whereby the row axes of the same neighboring individual mixer slices rows are further angled contrary to each other in a positive angle of alignment (+β) and in a negative angle of alignment (−β) with respect to the main direction of flow, wherein the alignment angle (β) is understood to be the angle between a row axis of an individual mixer slices row and the main direction of flow.
2. The mixing device according to claim 1 , wherein said mixer slices rows are arranged one above the other.
3. The mixing device according to claim 1 , wherein the row axes of neighboring mixer slice rows are arranged in planes neighboring to one another and extending essentially parallel to the main direction of flow.
4. The mixing device according to claim 1 , wherein the row axes of the mixer slices rows are arranged so they are inclined in an alignment angle (β) of 75° to 90° and (β) −75° to −90° with respect to the main direction of flow.
5. The mixing device according to claim 1 , wherein said mixer slices rows are arranged symmetrically to one another.
6. The mixing device according to claim 1 , wherein each of the mixer slices rows have an equal number of mixer slices.
7. The mixing device according to claim 1 , wherein all of the mixer slices of a mixer slice row have the same shaping.
8. The mixing device according to claim 1 , wherein an overlap (ü y ) of the individual mixer slices varies by mixer slices row.
9. The mixing device according to claim 1 , wherein at least one mixer slice has a triangular shape.
10. The mixing device according to claim 1 , wherein the least one mixer slice has a roundish shape chosen from a circular, elliptical or oval shapes.
11. The mixing device according to claim 10 , wherein the at least one roundish mixer slice is flattened on its side facing away from the main direction of flow.
12. The mixing device according to claim 1 , wherein at least one mixer slice has a trapezoidal shape.
13. The mixing device according claim 1 , wherein at least one mixer slice has at least one kink in its surface that is exposed to the oncoming flow.
14. The mixing device according to claim 1 , wherein an admixing device having at least one outlet opening for a secondary fluid (S) is arranged in the same flow cross section of the flow channel in which the mixer slice rows extend.
15. The mixing device according to claim 14 , wherein the mixer slices are mounted on the admixing device.
16. The mixing device according to claim 14 , wherein at least one outlet pipe is arranged between two neighboring slice rows with at least one outlet opening for the secondary fluid (S) being situated in the outlet pipe.
17. The mixing device according to claim 16 , wherein at least one outlet pipe in which there is at least one outlet opening for the secondary fluid (S) is arranged parallel to each mixer slice row.
18. The mixing device according to claim 16 , wherein each mixer slice is assigned at least one outlet opening of the admixing device.
19. The mixing device according to claim 15 , wherein each at least one mixer slice is assigned its own outlet pipe of the admixing device.
20. A mixing device, comprising a flow channel and a plurality of mixer slices being arranged in the flow channel, for creating leading edge eddies in a fluid (P) flowing through the flow channel in a main direction of flow, whereby said mixer slices are arranged in individual mixer slices rows along row axes running essentially across the main direction of flow, and the mixer slices of each individual mixer slices row are angled in the same direction with respect to the main direction of flow, and are situated partially overlapping in relation to the main direction of flow wherein the individual mixer slices rows are arranged side by side in a common flow channel section based on the main direction of flow, whose lengths correspond to the maximum longitudinal dimension of the largest mixer plate row, whereby the mixer slices of neighboring individual mixer slices rows are angled contrary to each other in a positive angle of attack (+α) and in a negative angle of attack (−α) with respect to the main direction of flow so that a global rotating fluid flow in the main direction of flow is generated being superimposed with two contra-rotating leading edge eddies, and whereby the row axes of the same neighboring individual mixer slices rows are further angled contrary to each other in a positive angle of alignment (+β) and in a negative angle of alignment (−β) with respect to the main direction of flow for supporting the global rotating fluid flow, wherein the alignment angle (β) is understood to be the angle between a row axis of an individual mixer slices row and the main direction of flow.
21. A mixing device, comprising a flow channel and a plurality of mixer slices being arranged in the flow channel, for creating leading edge eddies in a fluid (P) flowing through the flow channel in a main direction of flow, whereby said mixer slices are arranged in individual mixer slices rows along row axes running essentially across the main direction of flow, and the mixer slices of each individual mixer slices row are angled in the same direction with respect to the main direction of flow, and are situated partially overlapping in relation to the main direction of flow wherein the individual mixer slices rows are arranged side by side in a common flow channel section based on the main direction of flow, whose lengths correspond to the maximum longitudinal dimension of the largest mixer plate row, whereby the mixer slices of neighboring individual mixer slices rows are angled contrary to each other in a positive angle of attack (+α) and in a negative angle of attack (−α) with respect to the main direction of flow, and whereby the row axes of the same neighboring individual mixer slices rows are further angled contrary to each other in a positive angle of alignment (+β) and in a negative angle of alignment (−β) with respect to the main direction of flow resulting in a cross-type arrangement of the mixer slices rows, wherein the alignment angle (β) is understood to be the angle between a row axis of an individual mixer slices row and the main direction of flow.