Particle separator assembly connectable to a fluidized bed reactor and a fluidized bed reactor
A particle separator assembly connectable to a fluidized reactor includes a vertical vortex chamber enclosed by water tube panel walls forming a polygonal horizontal cross section and a supporting structure of the water tube panel walls. The polygonal horizontal cross section has at least six corners and the supporting structure has at least one horizontally arranged circular beam arranged outside of the water tube panel walls and attached by radially extending fasteners to at least three of the water tube panel walls. The at least one circular beam forms a full circle, or the at least one circular beam forms a partial circle covering at least seventy-five percent of a full circle and has ends that are firmly attached to a rigid support construction.
1. A particle separator assembly connectable to a fluidized bed reactor for separating particles from gas exhausted from a reaction chamber of the fluidized bed reactor, the particle separator assembly comprising:
a vertical vortex chamber enclosed by water tube panel walls forming a polygonal horizontal cross section comprising at least six corners and a supporting structure of the water tube panel walls,
wherein the supporting structure comprises at least one horizontally arranged circular beam arranged outside of the water tube panel walls and attached by radially extending fastening means to at least three of the water tube panel walls, the at least one circular beam being formed by one of (i) a full circle and (ii) a partial circle covering at least seventy-five percent of a full circle, comprising ends that are firmly attached to a rigid support construction, so as to resist bending of the water tube panel walls by the tension of the circular beam.
2. A particle separator assembly according to claim 1 , wherein the fastening means comprises multiple fastening means attached to each of the at least three water tube panel walls.
3. A particle separator assembly according to claim 2 , wherein the fastening means comprises multiple substantially equidistantly arranged fastening means attached to each of the at least three water tube panel walls.
4. A particle separator assembly according to claim 1 , wherein the at least one horizontally arranged circular beam is thermally insulated from the environment and encased to the same space with the vortex chamber.
5. A particle separator assembly according to claim 4 , wherein the substantially equidistantly arranged fastening means is attached to each of the at least three water tube panel walls at a distance from vertical edges of the water tube panel walls.
6. A particle separator assembly according to claim 1 , wherein the at least one circular beam comprises multiple horizontally arranged circular beams attached to the at least three water tube panel walls at different levels.
7. A particle separator assembly according to claim 6 , wherein the multiple circular beams comprise at least one circular beam forming a full circle around the vortex chamber.
8. A particle separator assembly according to claim 6 , wherein the multiple circular beams comprise at least one circular beam forming a partial circle covering at least seventy-five percent of a full circle.
9. A particle separator assembly according to claim 8 , wherein the multiple circular beams comprise at least one circular beam forming a partial circle covering at least seventy-five percent of a full circle attached to an upper portion of the vortex chamber and having a gap adjacent to an inlet channel of the vortex chamber.
10. A particle separator assembly according to claim 1 , wherein the at least one horizontally arranged circular beam has one of a circular and a rectangular cross section.
11. A particle separator assembly according to claim 1 , wherein the at least one horizontally arranged circular beam is formed as one of a circularly bent I-beam and a U-beam.
12. A particle separator assembly according to claim 1 , wherein the radially extending fastening means are radially extending plates.
13. A particle separator assembly according to claim 12 , wherein the water tube panel walls comprise fins between the water tubes, and the radially extending plates are attached to the fins by welding.
14. A particle separator assembly according to claim 1 , wherein the polygonal cross section comprises eight to sixteen corners.
15. A particle separator assembly according to claim 14 , wherein the polygonal cross section comprises sixteen corners.
16. A fluidized bed reactor comprising:
(A) a reaction chamber for combusting fuel, combustion gas being generated as a result of the combustion of the fuel; and
(B) a particle separator assembly for separating particles from the combustion gas exhausted from the combustion chamber, the particle assembly comprising:
a vertical vortex chamber enclosed by water tube panel walls forming a polygonal horizontal cross section comprising at least six corners and a supporting structure of the water tube panel walls,
wherein the supporting structure comprises at least one horizontally arranged circular beam arranged outside of the water tube panel walls and attached by radially extending fastening means to at least three of the water tube panel walls, the at least one circular beam being formed by one of (i) a full circle and (ii) a partial circle covering at least seventy-five percent of a full circle, comprising ends that are firmly attached to a rigid support construction, so as to resist bending of the water tube panel walls by the tension of the circular beam.
17. A fluidized bed reactor according to claim 16 , wherein the fastening means comprises multiple fastening means attached to each of the at least three water tube panel walls.
18. A fluidized bed reactor according to claim 17 , wherein the fastening means comprises multiple substantially equidistantly arranged fastening means attached to each of the at least three water tube panel walls.
19. A fluidized bed reactor according to claim 16 , wherein the at least one horizontally arranged circular beam is thermally insulated from the environment and encased to the same space with the vortex chamber.
20. A fluidized bed reactor according to claim 19 , wherein the substantially equidistantly arranged fastening means is attached to each of the at least three water tube panel walls at a distance from vertical edges of the water tube panel walls.
21. A fluidized bed reactor according to claim 16 , wherein the at least one circular beam comprises multiple horizontally arranged circular beams attached to the at least three water tube panel walls at different levels.
22. A fluidized bed reactor according to claim 21 , wherein the multiple circular beams comprise at least one circular beam forming a full circle around the vortex chamber.
23. A fluidized bed reactor according to claim 21 , wherein the multiple circular beams comprise at least one circular beam forming a partial circle covering at least seventy-five percent of a full circle.
24. A fluidized bed reactor according to claim 23 , wherein the multiple circular beams comprise at least one circular beam forming a partial circle covering at least seventy-five percent of a full circle attached to an upper portion of the vortex chamber and having a gap adjacent to an inlet channel of the vortex chamber.
25. A fluidized bed reactor according to claim 16 , wherein the at least one horizontally arranged circular beam has one of a circular and a rectangular cross section.
26. A fluidized bed reactor according to claim 16 , wherein the at least one horizontally arranged circular beam is formed as one of a circularly bent I-beam and a U-beam.
27. A fluidized bed reactor according to claim 16 , wherein the radially extending fastening means are radially extending plates.
28. A fluidized bed reactor according to claim 27 , wherein the water tube panel walls comprise fins between the water tubes, and the radially extending plates are attached to the fins by welding.
29. A fluidized bed reactor according to claim 16 , wherein the polygonal cross section comprises eight to sixteen corners.
30. A fluidized bed reactor according to claim 29 , wherein the polygonal cross section comprises sixteen corners.