Clamping device and an associated method thereof

Patent metadata

Field	Value
Publication number	US-10711920-B2
Application number	US-201715715192-A
Country	US
Kind code	B2
Filing date	Sep 26, 2017
Priority date	Sep 28, 2016
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

Clamping device including sheet metal, wedge-washers, and fastening members. Sheet metal includes first segments and second segment, where each of the first and second segments include conduit-facing end and outwardly-extending end. Conduit-facing ends are joined to each other and wrapped around conduit in opposite directions. Outwardly-extending ends extend in opposite direction to outwardly-extending end. Each outwardly-extending end is bent at bend angle towards a respective conduit-facing end. Wedge-washers are disposed on first and second segments. Each wedge-washer includes sidewall inclined in a direction opposite to bend angle and in contact with a respective outwardly-extending end. Fastening members are disposed on respective wedge-washer.

First claim

What is claimed is:

1. A clamping device for clamping a conduit in a position, comprising:
a sheet metal comprising a plurality of first segments and at least one second segment,
wherein each of the plurality of first segments and the at least one second segment comprise a conduit-facing end and an outwardly-extending end,
wherein the conduit-facing ends are joined to each other along a lateral axis of the sheet metal and configured to wrap around the conduit in opposite directions,
wherein the outwardly-extending ends of the plurality of first segments extend in an opposite direction to the outwardly-extending end of the at least one second segment, and
wherein each of the outwardly-extending ends has an angled portion at a respective bend angle relative to a longitudinal axis of the sheet metal, towards a respective conduit-facing end of a respective one of the plurality of first segments or the at least one second segment;
a plurality of wedge-washers, wherein at least one wedge-washer is disposed on each of the plurality of first segments and the at least one second segment, wherein each of the at least one wedge-washer comprises an angled sidewall inclined along and in contact with the angled portion of a respective outwardly-extending end of each of the plurality of first segments and the at least one second segment; and
a plurality of fastening members with at least one fastening member disposed on each of the plurality of wedge-washers for applying pressure on the respective wedge-washer along radial and longitudinal axes of the sheet metal.

2. The clamping device of claim 1 , wherein the conduit-facing ends of each of the plurality of first segments are coupled to the conduit-facing end of the at least one second segment via a locking pin.

3. The clamping device of claim 1 , wherein the conduit-facing ends of each of the plurality of first segments are integrated to the conduit-facing end of the at least one second segment to form a unified conduit-facing end of the sheet metal.

4. The clamping device of claim 1 , further comprising a solid lubricant coating disposed along at least a portion of an inner surface of each of the plurality of first segments and along at least a portion of an inner surface of the at least one second segment.

5. The clamping device of claim 1 , wherein the clamping device is configured to clamp the conduit to a combustor-can of a gas turbine engine.

6. The clamping device of claim 1 , wherein the conduit-facing ends of the plurality of first segments and the at least one second segment is in a cylindrical form having a diameter in a range from about 3 mm to about 5 mm.

7. The clamping device of claim 1 , wherein at least one side of each of the plurality of first segments and at least one second segment comprise a plurality of slits spaced apart from each other along the longitudinal axis.

8. A system comprising:
a combustor-can; and
an axial fuel staging system coupled to the combustor-can, wherein the axial fuel staging system comprises a fuel injector and a conduit assembly, wherein the conduit assembly comprises a conduit that is clamped to the combustor-can with a clamping device comprising;
a sheet metal comprising a plurality of first segments and at least one second segment,
wherein each of the plurality of first segments and the at least one second segment comprise a conduit-facing end and an outwardly-extending end, wherein the conduit-facing ends are joined to each other along a lateral axis of the sheet metal and configured to wrap around the conduit in opposite directions, wherein the outwardly-extending ends of the plurality of first segments extend in an opposite direction to the outwardly-extending end of the at least one second segment, and wherein each of the outwardly-extending ends has an angled portion at a respective bend angle relative to a longitudinal axis of the sheet metal, towards a respective conduit-facing end of a respective one of the plurality of first segments or the at least one second segment;
a plurality of wedge-washers, wherein at least one wedge-washer is disposed on each of the plurality of first segments and the at least one second segment, wherein each of the at least one wedge-washer comprises an angled sidewall inclined along and in contact with the angled portion of a respective outwardly-extending end of each of the plurality of first segments and the at least one second segment; and
a plurality of fastening members with at least one fastening member disposed on each of the plurality of wedge-washers for applying pressure on the respective wedge-washer along radial and longitudinal axes of the sheet metal and clamp the conduit to the combustor-can.

9. The system of claim 8 , wherein the conduit-facing ends of each of the plurality of first segments are coupled to the conduit-facing end of the at least one second segment via a locking pin.

10. The system of claim 8 , wherein the conduit-facing ends of each of the plurality of first segments are integrated to the conduit-facing end of the at least one second segment to form a unified conduit-facing end of the sheet metal.

11. The turbine system of claim 8 , further comprising a solid lubricant coating disposed along at least a portion of an inner surface of each of the plurality of first segments, along at least a portion of an inner surface of the at least one second segment, and along a portion of an outer surface of the conduit.

12. The system of claim 8 , further comprising a mesh wrapped on a portion of an outer surface of the conduit.

13. The turbine system of claim 8 , wherein the clamping device has a stiffness in a range from about 1000 N/mm to about 100000 N/mm.

14. The system of claim 8 , comprising a gas turbine engine having the combustor-can, a turbine, and the axial fuel staging system.

15. The turbine system of claim 8 , wherein the conduit-facing ends of the plurality of first segments and the at least one second segment is in a cylindrical form having a diameter in a range from about 3 mm to about 5 mm.

16. The system of claim 8 , wherein at least one side of each of the plurality of first segments and at least one second segment comprise a plurality of slits spaced apart from each other along the longitudinal axis.

17. The system of claim 8 , wherein the at least one wedge-washer has a hole and the combustor-can has an elongated hole and wherein the at least one fastening member is inserted through the hole and the elongated hole.

18. The system of claim 8 , wherein the at least one wedge-washer has a hole, the combustor-can has a first elongated hole, and at least one of the plurality of first segments and the at least one second segment has a second elongated hole and wherein the at least one fastening member is inserted through the hole, the first elongated hole, and the second elongated hole.

19. A method for clamping at least one conduit in a position, comprising:
obtaining a sheet metal comprising a plurality of first segments and at least one second segment,
wherein each of the plurality of first segments and the at least one second segment comprise a conduit-facing end, and an outwardly-extending end and wherein the conduit-facing ends are joined to each other along a lateral axis of the sheet metal;
adjusting the sheet metal so that the conduit-facing ends of each of the plurality of first segments and the at least one second segment of the sheet metal wrap around the conduit in opposite directions;
adjusting the outwardly-extending ends of the plurality of first segments e

Assignees

• Gen Electric

Inventors

• Dhanasekaran Kesavan
• Huffman Marcus Byron

Classifications

• F16L3/02

  partly surrounding the pipes, cables or protective tubing (bands or chains F16L3/14) · CPC title

• F23R3/28

  characterised by the fuel supply (burners F23D) · CPC title

• F02C7/32

  Arrangement, mounting, or driving, of auxiliaries · CPC title

• F23R3/346

  for staged combustion · CPC title

• B60K15/01

  Arrangement of fuel conduits · CPC title