Device and method for mounting or dismantling, replacement and maintenance of a can-combustor

Patent metadata

Field	Value
Publication number	US-10174637-B2
Application number	US-201514835991-A
Country	US
Kind code	B2
Filing date	Aug 26, 2015
Priority date	Sep 5, 2014
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

The present invention concerning of a device for mounting or dismantling, replacement and maintenance of a can-combustor of a gas turbine engine including an assembly tool or assembly tool with additional frame having at least one lifting beam, at least one linear driver, wheels, at least one eccentric rolling hook for fixation of the gas turbine housing, optionally spacers for building the interface to the can-combustor, adapters, lifting points for the main crane. The eccentric rolling hook is connected to the gas turbine housing by giving in axial or quasi-axial direction a force for mounting or dismantling the can-combustor from the gas turbine housing.

First claim

The invention claimed is:

1. A device for mounting or dismantling, replacement and maintenance of a can-combustor of a gas turbine engine, the device comprising:
an assembly tool or assembly tool with an additional frame having at least one lifting beam;
at least one linear driver;
wheels;
at least one eccentric rolling hook configured for fixation of a gas turbine housing, and the at least one eccentric rolling hook includes an outer structure/casing which is movable/turnable and an inner ring which behaves stationary, or an inner ring which is movable/turnable and an outer structure/casing which behaves stationary; and
lifting points for a crane, wherein the at least one eccentric rolling hook is configured to be connected to a gas turbine housing by applying in an axial or quasi-axial direction a force for mounting or dismantling the can-combustor relative to the gas turbine housing.

2. The device according to claim 1 , wherein the at least one eccentric rolling hook comprising:
an adjustment device, discretely or operatively communicating with the crane, to adjust a position of a can-combustor in a radial or quasi-radial position.

3. The device according to claim 1 , comprising:
electrical means or a worm gear for driving the eccentric rolling hook.

4. The device according to claim 1 , wherein the at least one eccentric rolling hook is configured to be self-locking with respect to a counterpart attached to a gas turbine housing.

5. The device according to claim 4 , in combination with a counterpart bolted to a machined surface of the gas turbine housing.

6. The device according to claim 1 , wherein the assembly tool or the assembly tool with the additional frame is configured to avoid collision with nearby can-combustors and auxiliary systems.

7. A method for mounting of a can-combustor with a device for mounting or dismantling, replacement and maintenance of the can-combustor of a gas turbine engine, the device comprising:
an assembly tool or assembly tool with an additional frame having at least one lifting beam;
at least one linear driver;
wheels;
at least one eccentric rolling hook configured for fixation of a gas turbine housing, and the at least one eccentric rolling hook includes an outer structure/casing which is movable/turnable and an inner ring which behaves stationary, or an inner ring which is movable/turnable and an outer structure/casing which behaves stationary; and
lifting points for a crane, wherein the at least one eccentric rolling hook is configured to be connected to a gas turbine housing by applying in an axial or quasi-axial direction a force for mounting or dismantling the can-combustor relative to the gas turbine housing, the method comprising:
during an assembly procedure the assembly tool is always connected to a crane;
an adjustment of an angle with respect to an assembling direction of the can-combustor is managed by the crane;
adjusting and fixing the can-combustor within the right a desired operational position into the gas turbine housing; and
removing the assembly tool from an impact region of the can-combustors.

8. A method for dismantling or replacement of a can-combustor with a device for mounting or dismantling, replacement and maintenance of the can-combustor of a gas turbine engine, the device comprising:
an assembly tool or assembly tool with an additional frame having at least one lifting beam;
at least one linear driver;
wheels;
at least one eccentric rolling hook configured for fixation of a gas turbine housing, and the at least one eccentric rolling hook includes an outer structure/casing which is movable/turnable and an inner ring which behaves stationary, or an inner ring which is movable/turnable and an outer structure/casing which behaves stationary; and
lifting points for a crane, wherein the eccentric rolling hook is configured to be connected to a gas turbine housing by applying in an axial or quasi-axial direction a force for mounting or dismantling the can-combustor relative to the gas turbine housing, the method comprising:
removing a majority of portal/nuts;
lifting the assembly tool to the can-combustor by the crane;
placing the eccentric rolling hook relative to the gas turbine housing;
after securing the eccentric rolling hook, adjusting, a desired angle between gas turbine housing and assembly tool by the crane;
after the assembly tool is in the desired angle, adjusting a height in radial direction with the eccentric rolling hook;
mounting the assembly tool to the can-combustor by several bolts;
connecting the can-combustor to the assembly tool for extraction;
removing any remaining bolts on the can-combustor that are still supporting the can-combustor;
adjusting a height with the eccentric rolling hook to compensate dimensional differences or elasticity of the assembly tool;
starting to shift the can-combustor outside the gas turbine housing until it reaches a maximum stroke of the assembly tool; and
adjusting with the crane to maintain the desired angle such that the can-combustor, positioned outside the gas turbine housing, is ready for lifting.

9. A method for maintenance of a can-combustor with a device for mounting or dismantling, replacement and maintenance of the can-combustor of a gas turbine engine, the device comprising:
an assembly tool or assembly tool with an additional frame having at least one lifting beam;
at least one linear driver;
wheels;
at least one eccentric rolling hook configured for fixation of a gas turbine housing, and the at least one eccentric rolling hook includes an outer structure/casing which is movable/turnable and an inner ring which behaves stationary, or an inner ring which is movable/turnable and an outer structure/casing which behaves stationary; and
lifting points for a crane, wherein the at least one eccentric rolling hook is configured to be connected to a gas turbine housing by applying in an axial or quasi-axial direction a force for mounting or dismantling the can-combustor relative to the gas turbine housing, the method comprising:
removing the majority of portal/nuts;
lifting the assembly tool to the can-combustor by the crane;
placing the eccentric rolling hook relative to the gas turbine housing;
after securing the eccentric rolling hook, adjusting a desired angle between gas turbine housing and assembly tool by the crane;
after the assembly tool is in the desired angle, adjusting height in radial direction with the eccentric rolling hook;
mounting the assembly tool to the can-combustor by several bolts;
connecting the can-combustor to the assembly tool for extraction;
removing any remaining bolts on the can-combustor that are still supporting the can-combustor;
adjusting a height with the eccentric rolling hook to compensate dimensional differences or elasticity of the assembly tool;
starting to shift the can-combustor outside the gas turbine housing until it reaches a maximum stroke of the assembly tool;
adjusting with the crane to maintain the angle such that the can-combustor is outside the gas turbine housing and ready for lifting; and
after the maintenance operation is completed, remounting the can-combustor as follows:
during the assembly procedure the assembly tool is always connected to the crane:
managing adjustment of the angle with respect to the assembling direction of the can-combustor by the crane;
adjusting and fixing the can-combustor within a desired operational position into a gas turbine housing; and
removing the assembly tool from an impact region of the can-combustor.

10. A method for mounting of a can-combustor with the use of the device as claimed in claim 1 , the method comprising:
during an assembly proc

Assignees

• Ansaldo Energia Switzerland AG

Inventors

• Imfeld Jost
• Mathews Hans-Christian

Classifications

• Y10T29/49346

  Rocket or jet device making · CPC title

• Y10T29/49318

  Repairing or disassembling · CPC title

• Y10T29/49718

  Repairing · CPC title

• Y10T29/4932

  Turbomachine making · CPC title

• F01D25/285 Primary

  Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures · CPC title