BURNER ASSEMBLY

Abstract

The invention relates to a burner assembly (100) comprising at least two gas supply lines (1, 2) for supplying at least two different gases, a gas mixture supply line assembly (11), in which the mixture of the at least two different gases is passed on and fed to at least one burner head (20) in which the mixture is combusted, wherein the gas mixture supply line assembly (11) and/or at least one of the gas supply lines has at least one flexible metal tube (1, 2, 13, 16, 19, 21).

Claims

1. Burner assembly (100) having at least two gas supply lines (1, 2, 14, 15) for supplying at least two different gases, a mixing section (10) in which the at least two different gases are mixed with one another, a gas mixture supply line assembly (11) in which the mixture of the at least two different gases is passed on and fed to at least one burner head (20) in which the mixture is combusted, characterized in that the gas mixture supply line assembly (11) and/or at least one of the gas supply lines (1, 2) comprise at least one flexible metal hose (1, 2, 13, 16, 19, 21).

2. The burner assembly (100) according to claim 1, wherein at least one of the at least two gas supply lines (14, 15) is connected to an oxygen supply and/or a compressed air supply.

3. The burner assembly (100) according to claim 1, wherein at least one of the at least two gas supply lines (14, 15) is connected to a fuel gas supply.

4. The burner assembly (100), wherein the at least one flexible metal hose (1, 2, 13, 16, 19, 21) takes the form of a corrugated metal hose.

5. The burner assembly (100) according to claim 1, wherein the at least one flexible metal hose (1, 2, 13, 16, 19, 21) is fastened by means of screw connections.

6. The burner assembly (100) according to claim 1, wherein the mixture feed assembly (11) comprises a distributor line assembly on which at least two combustion heads (20) are arranged.

7. The burner assembly (100) according to claim 6, wherein the distributor line assembly comprises at least two distributor sections (18), each interconnected by a flexible metal hose (19).

8. The burner assembly (100) according to claim 6, wherein at least one of the combustion heads (20) is connected to the distributor line assembly by a flexible metal hose (21).

9. The burner assembly (100) according to claim 6, wherein the gas mixture supply line assembly (11) has at least one flexible metal tube upstream of the distributor line assembly.

10. The burner assembly (100) according to claim 1, comprising at least one teardrop nozzle burner (12a).

11. The burner assembly (100) according to claim 1, comprising at least one block burner (12b).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 shows a preferred embodiment of a burner assembly according to the invention in a schematic representation;

[0025] FIG. 2 shows another preferred embodiment of a burner assembly according to the invention in a schematic representation;

[0026] FIG. 3 shows another preferred embodiment of a burner assembly according to the invention in a schematic representation;

[0027] FIG. 4 shows a combustion head for connection to an embodiment of a burner assembly according to the invention;

[0028] FIG. 5 shows another preferred embodiment of a burner assembly according to the invention in a schematic representation.

DETAILED DESCRIPTION OF DRAWINGS

[0029] In FIG. 1, a preferred embodiment of a burner assembly according to the invention is schematically illustrated and denoted by 100.

[0030] The burner assembly 100 has two gas supply lines for feeding two different gases. A compressed air supply and a fuel gas supply line, for example an acetylene feed, can each comprise, for example, a pipe 14, 15 or, for example, also a flexible metal hose.

[0031] Furthermore, the compressed air supply has a compressed air hose 1 downstream of the pipe 14. This can be realized as a flexible metal hose or as a rubber hose. The fuel gas supply line has a fuel gas hose 2, which is arranged downstream of the pipe 15. This can likewise be realized either as a flexible metal hose or as a rubber hose.

[0032] The compressed air hose 1 is connected at its other end to a hose sleeve with a union nut 3. This hose sleeve 3 is in turn connected to a quick-release valve 4. This allows the compressed air supply to be opened and closed easily. An adjusting valve 7, which enables pressure regulation, is arranged downstream of the quick-release valve 4.

[0033] The fuel gas hose 2 can also be connected at its further end to a hose sleeve with a union nut 3, which in turn is connected to a quick-release valve 5. An adjusting valve 8 is arranged downstream thereof.

[0034] The compressed air supply and the fuel gas supply line are brought together in a machine shaft 6, which is connected to a mixing section 10 via a union nut 9.

[0035] The burner assembly 100 further includes a gas mixture supply line assembly 11 having a flexible metal hose 13 for connection to a teardrop nozzle burner 12a. Teardrop nozzle burners are characterized by a high exit velocity, as a result of which lanceolate flame shapes can be achieved. In this simple embodiment, the gas mixture supply line assembly 11 consists only of the flexible metal hose 13. However, the gas mixture supply line assembly 11 is not restricted thereto. It may further comprise, for example, a tube or a plurality of tubes and a distributor line assembly for passing on to one or more burner heads and/or burners. Alternatively, it is also conceivable for the mixing section to be directly connectable to the teardrop nozzle burner 12a.

[0036] FIG. 2 shows another embodiment of a burner assembly 100 according to the invention. The same reference symbols denote the same elements as in FIG. 1 and will not be described again here. The difference from FIG. 1 is that here, instead of a teardrop nozzle burner 12a, a block burner 12b is provided.

[0037] Furthermore, a water-cooling device 17 having a supply line 17a and a return line 17b is provided between mixing section 10 and gas mixture supply line assembly 11.

[0038] FIG. 3 schematically illustrates another embodiment of a burner assembly 100 according to the invention. The same reference symbols denote the same elements as in FIGS. 1 and 2 and will not be described again. The burner assembly 100 shown in FIG. 3 takes the form of an oxygen or compressed-air burner 12c with a handpiece. Instead of the machine shaft 6, the burner assembly 100 has a handle 6a on which the adjusting valves 7 and 8 are arranged.

[0039] FIG. 4 shows an exemplary burner head 20 for connection to an embodiment of a burner assembly according to the invention. The burner head can have, for example, an offset at an angle of 45 here, wherein a flexible metal tube 16 can be provided as the connecting means. Here, the burner head has a diameter of 40 mm.

[0040] FIG. 5 shows another embodiment of a burner assembly 100 according to the invention. This has a fuel gas supply line 15 with a Y-piece 40, to which an ignition burner 30 is additionally connected. This is advantageously suitable for igniting the actual burner assembly. A compressed air supply is designated by 14.

[0041] In this embodiment, a mixture supply line assembly 11 includes a distributor line assembly. This distributor line assembly comprises three distributor sections 18 connected together by flexible metal hoses 19. The distributor sections 18 take the form of tubes, on each of which three burner heads 20 are arranged. The burner heads 20 may optionally be coupled to the distributor sections 18 in each case by a flexible metal tube 21. Even the line 13 between the mixing area and the distributor line assembly can be manufactured entirely or partially from a flexible metal tube.

[0042] Fuel gas such as acetylene is usually supplied at a pressure of up to 1.5 bar.

[0043] Compressed air is supplied at a pressure of up to 7.0 bar.

[0044] The flexible metal tubes can advantageously have diameters between 10 mm and 100 mm.