Filling body

Abstract

Filling bodies for the use in unstructured packings. The filling body has a fibre-reinforced carbon flat material. Two strip regions of the carbon flat material, which are separated by a cut, transition into two connecting regions of the carbon flat material.

Claims

1. A filling body for use in unstructured packings, comprising: a fibre-reinforced carbon flat material, and two strip regions of the carbon flat material, which are separated by a cut, and transition into one another in two connecting regions of the carbon flat material; the two strip regions forming an alternating pair of strip regions; wherein one of the two strip regions of the alternating pair of strip regions is separated by the cut and forms a single hump; and wherein another one of the two strip regions of the alternating pair of strip regions forms a U shape, each end of the U shape comprising a hump; and wherein the filling body comprises a total of n cuts, resulting in an alternating arrangement of a plurality of adjacent alternating pairs of strip regions, and n is a number ranging from 4 to 35.

2. The filling body according to claim 1, wherein at least some of the fibres running in at least one strip region extend into both connecting regions.

3. The filling body according to claim 1, comprising n cuts and n+1 strip regions, wherein n is a number selected from 5, 6, 7, 8, 9, 10 or 11.

4. The filling body according to claim 1, wherein the cut defines a first cut edge and a second cut edge, which transition into one another at a first and a second cut end of the cut, and a portion of one cut edge is spaced apart from the other cut edge of the same cut.

5. The filling body according to claim 1, wherein two cut edges of adjacent cuts delimit a given strip region, and the cut edges delimiting the given strip region run parallel to one another.

6. The filling body according to claim 5, wherein the two other cut edges of the adjacent cuts also run parallel to one another.

7. The filling body according to claim 1, wherein both cut edges of the same cut lie in one plane.

8. The filling body according to claim 1, wherein the fibre-reinforced carbon flat material comprises fibres selected from glass fibres, basalt fibres and carbon fibres.

9. The filling body according to claim 1, wherein the fibre-reinforced carbon flat material comprises at least one unidirectional region in which the fibres do not cross.

10. The filling body according to claim 9, wherein the fibre-reinforced carbon flat material comprises at least two unidirectional strip regions adjacent to both cut edges of the same cut.

11. The filling body according to claim 9, wherein a unidirectional strip region extends from one cut edge of a given strip region to the other cut edge of the same strip region and from the first cut ends of the two cuts to the second cut ends of the two cuts.

12. The filling body according to claim 9, wherein the unidirectional region extends over the entire carbon flat material.

13. The filling body according to claim 1, wherein the fibre-reinforced carbon flat material comprises at least one multidirectional region in which the fibres cross.

14. A column having an unstructured packing comprising filling bodies according to claim 1.

15. A method for producing a filling body according to claim 1, wherein a fibre-reinforced starting flat material is fed into a press-and-cutting zone, and the starting flat material is shaped, cut up and cut through in the press-and-cutting zone so as to form a body which comprises a fibre-reinforced flat material and in which two strip regions of the flat material separated by a cut transition into one another in two connecting regions of the flat material.

16. The filling body according to claim 1, wherein each of the two strip regions separated by the cut is configured in a curved shape, the other one of the two strip regions comprises two more turning points compared to the one of the two strip regions.

17. The filling body according to claim 1, wherein the cut defines a first cut edge and a second cut edge, a distance between one point of the first cut edge and a corresponding point of the second cut edge is at least 1/6 of a length of each cut edge, wherein the one point and the corresponding point are immediately adjacent to one another before cutting the carbon flat material.

18. The filling body according to claim 1, wherein all cuts have equal lengths.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) The invention will be explained by the following figures and embodiment, without being limited thereto.

(2) FIG. 1A shows a filling body according to the invention with two connecting regions in different perspectives.

(3) FIG. 1B shows a filling body according to the invention with two connecting regions in different perspectives.

(4) FIG. 1C shows a filling body according to the invention with two connecting regions in different perspectives.

(5) FIG. 2 shows an enlarged detail of the filling body according to the invention, which is indicated by a rectangle in FIG. 1A.

(6) FIG. 3A shows press-and-cutting tools engaging with one another to produce the filling body shown in FIGS. 1A, 1B, 1C and 2.

(7) FIG. 3B shows press-and-cutting tools engaging with one another to produce the filling body shown in FIGS. 1A, 1B, 1C and 2.

(8) FIG. 4 shows the press-and-cutting tools of FIGS. 3A and 3B arranged one above the other with fibre-reinforced flat material that has been cut through and cut to size so as to form filling body green bodies.

(9) FIG. 5 shows a filling body according to the invention with three connecting regions.

DETAILED DESCRIPTION

(10) FIGS. 1A, 1B and 1C show a filling body 1 for a column. The filling body comprises a fibre-reinforced carbon flat material 2. Two strip regions 5, 15 of the carbon flat material 2, separated by a cut 10-1, transition into one another in two connecting regions 3, 4 of the carbon flat material. In FIG. 1A, the transition from the strip regions to the connecting regions is indicated by dashed lines. In the embodiment shown in the figures, there are a total of four cuts 10-1, 20-1, 30-1, 40-1, which run in parallel. Therefore, there are a total of five separate strip regions 5, 15, 25, 35, 45 (n cuts and n+1 strip regions, with n being 4).

(11) A part of the fibres (preferably carbon fibres) running in each strip region 5, 15, 25, 35, 45 extends into both connecting regions 3, 4. This is shown in FIG. 2 by way of example for an enlarged detail of FIG. 1A around the strip region 15. The fibres in the strip region 15 extending from the connecting region 3 to the connecting region 4 are shown as thin straight lines in FIG. 2. When looking at the filling body 1 from the outside, the fibres are not visible or not visible in their full length, because they are at least partially in the carbon matrix of the carbon flat material. FIG. 2 indicates the fibre orientation within the matrix.

(12) The cuts 10-1, 20-1, 30-1, 40-1 shown in FIG. 1A each define a first cut edge 10-2, 20-2, 30-2, 40-2 shown in FIG. 1B and a second cut edge 10-3, 20-3, 30-3, 40-3 shown in FIG. 1B. At the two cut ends of the cuts 10-1, 20-1, 30-1, 40-1, the two cut edges of each cut transition into one another, which can be clearly seen in the three perspectives of FIGS. 1A, 1B and 1C. In the perspective of FIG. 1B, the strip region 5 covers the two strip regions 25, 45, and the strip region 15 covers the strip region 35. The strip region 5 also covers the cut edge 10-2, with a double arrow d in FIG. 1B indicating that a portion of this cut edge 10-2 is spaced from the other cut edge 10-3 of the same cut 10-1.

(13) In the case of the filling body according to the invention shown in FIG. 1A to 1C, two cut edges (10-3 and 20-2; 20-3 and 30-2; 30-3 and 40-2) of adjacent cuts (10-1 and 20-1; 20-1 and 30-1; 20-1 and 30-1) in each case delimit a strip region (15, 25, 35). The cut edges (10-3 and 20-2; 20-3 and 30-2; 30-3 and 40-2) which delimit a particular strip region (15, 25, 35) run parallel to one another in pairs.

(14) The two other cut edges (10-2 and 20-3; 20-2 and 30-3; 30-2 and 40-3) of the adjacent cuts (10-1 and 20-1; 20-1 and 30-1; 20-1 and 30-1) also run parallel to one another in pairs.

(15) From the perspective of FIG. 1A, it can be clearly seen that the two cut edges (10-2 and 10-3; 20-2 and 20-3; 30-2 and 30-3; 40-2 and 40-3) of the same cut (10-1; 20-1; 30-1; 40-1) lie in one plane. Here, the planes run towards the viewer. Therefore, the cut edges lying in the planes each appear as a straight line portion that coincides with the corresponding cut.

(16) In the region indicated by straight lines in FIG. 2, the carbon fibres do not cross. This region is therefore a unidirectional region BU of the fibre-reinforced carbon flat material 2. The figures do not show that the fibres embedded in the other strip regions also run parallel and up to the connecting regions 3 and 4. The fibre-reinforced carbon flat material 2 thus comprises a number of pairs of unidirectional strip regions (BU-5 and BU-15; BU-15 and BU-25; BU-25 and BU-35; BU-35 and BU-45), each of which is adjacent to the two cut edges (10-2 and 10-3; 20-2 and 20-3; 30-2 and 30-3; 40-2 and 40-3) of the same cut (10-1; 20-1; 30-1; 40-1).

(17) FIGS. 1A and 2 show that the unidirectional strip region BU-15 occupies the entire area of the strip region 15. The unidirectional strip region BU-15 extends from one cut edge 10-3 of the strip region 15 to the other cut edge 20-2 of the same strip region 15 and from the first cut ends of the two cuts 10-1, 20-1 to the second cut ends of the two cuts 10-1, 20-1. As an example, the unidirectional region BU can extend over the entire carbon flat material.

(18) What is not shown in the figures is that the fibre-reinforced carbon flat material 2 can include at least one multidirectional region where the fibres cross.

(19) The press-and-cutting tools shown in FIGS. 3A and 3B can be used in a method according to the invention to produce the filling body shown. According to the method, a starting flat material comprising fibres and a carbonisable matrix substance is fed into a press-and-cutting zone. In the press-and-cutting zone, the press-and-cutting tool shown in FIG. 3A forms an upper counterpart to the lower press-and-cutting tool shown in FIG. 3B; as shown in FIG. 4. In the press-and-cutting zone, the starting flat material between the tools shown in FIGS. 3A and 3B is cut through and cut to size and thus converted into filling body green bodies. The filling body green bodies can be converted into filling bodies according to the invention by carbonisation.

(20) The press-and-cutting tools shown here as an example each comprise 9 (33) sub-regions, with portion-cutting edges 100 running on the lower press-and-cutting tool at the transitions between the sub-regions. The portion-cutting edges 100 cut through the fibre-reinforced flat material in the longitudinal and transverse direction in such a way that 9 cut filling body green bodies are obtained with the desired cut.

(21) Each of the 9 sub-regions comprises planar, parallel cutting projections and parallel cutting projection receptacles arranged in between, which receive the cutting projections of the other press-and-cutting tool during the press-and-cutting process. The strip regions 5, 15, 25, 35, 45 come to rest on the surfaces (see for example 105, 125 and 145 in the first sub-region in FIGS. 3B and 115 and 135 in the first sub-region in FIG. 3A) of the cutting projections. The cuts 10-1, 20-1, 30-1, 40-1 each result from the fact that the planar cutting projections penetrate into the cutting projection receptacles of the other cutting tool. In this case, two through-cutting edges (for example 120-2 and 120-3, and 130-2 and 130-3) slide along each other and thus force the formation of the corresponding cuts (cuts 20-1 and 30-1 for the through-cutting edges 120-2, 120-3, 130-2, 130-3 mentioned here and denoted by reference signs in FIGS. 3A and 3B).

(22) It is also possible to use press-and-cutting tools that do not comprise 33 sub-regions, but rather larger or smaller numbers of sub-regions, for example only one sub-region.

(23) FIG. 5 shows a filling body according to the invention with 3 connecting regions 3, 4 and 6. Only the perspective of FIG. 1A is shown.

(24) For reasons of clarity, only selected reference signs have been shown in the figures.

LIST OF REFERENCE SIGNS

(25) Filling body 1 Carbon flat material 2 First main surface 2-1 Second main surface 2-2 Connecting region 3, 4, 6 Strip region 5, 15, 25, 35, 45 Cut 10-1, 20-1, 30-1, 40-1 First cut edge 10-2, 20-2, 30-2, 40-2 Second cut edge 10-3, 20-3, 30-3, 40-3 Unidirectional region BU Unidirectional strip region BU-5, BU-15 Portion-cutting edge 100 Through-cutting edge 120-2, 120-3, 130-2, 130-3 Surfaces 105, 115, 125, 135, 145