Rotating device for a gas turbine and method for rotating a component

Patent metadata

Field	Value
Publication number	US-2016222829-A1
Application number	US-201415021491-A
Country	US
Kind code	A1
Filing date	Aug 21, 2014
Priority date	Sep 19, 2013
Publication date	Aug 4, 2016
Grant date	—

Abstract

A rotating device for an at least partially opened gas turbine, is designed for being mounted on a parting line of the housing of the at least partially opened gas turbine by way of at least one connecting portion, wherein the rotating device has at least one first fastening portion, which is designed for mechanically interacting with a force-transmitting connection, in particular at least one traction cable, in order to pass on mechanically a rotating movement of at least one component of the at least partially opened gas turbine, wherein it has at least one sleeve, which has at least one second fastening portion, wherein the sleeve is designed for being connected non-positively to the gas turbine rotor.

First claim

1 . A rotating device for an at least partially opened gas turbine, which is designed to be installed on a parting joint of the casing of the at least partially opened gas turbine by means of at least one connection section, wherein the rotating device comprises:
at least one first attachment section which is designed to mechanically cooperate with a force-transmitting connection, in order to mechanically impart a rotational movement to at least one component of the at least partially opened gas turbine, and at least one collar having at least one second attachment section, the collar being designed to be connected in a force-fitting manner to the gas turbine rotor.

2 . The rotating device as claimed in claim 1 ,
wherein the rotating device, once installed on the casing, partially surrounds a gas turbine rotor of the at least partially opened gas turbine.

3 . The rotating device as claimed in claim 1 , further comprising:
at least one adapter piece which can be mechanically connected both to the at least one connection section and to the parting joint of the casing of the gas turbine.

4 . The rotating device as claimed in claim 1 ,
wherein the at least one first attachment section is designed to support a sheathed cable as the force-transmitting connection.

5 . The rotating device as claimed in claim 1 ,
wherein the at least one second attachment section is designed to support a sheathed cable as the force-transmitting connection.

6 . The rotating device as claimed in claim 1 ,
wherein the at least one collar has, at least in part, a circumferential shape which replicates the circumferential shape of a guide apparatus.

7 . The rotating device as claimed in claim 1 ,
wherein the rotating device is essentially U-shaped, its end pieces each having a connection section for installation on a parting joint of the casing of the gas turbine.

8 . The rotating device as claimed in claim 7 , further comprising:
at least one first attachment section in the region of the apex of the essentially U-shaped rotating device.

9 . The rotating device as claimed in claim 1 , further comprising:
at least two first attachment sections which are designed to support a sheathed cable as the force-transmitting connection.

10 . The rotating device as claimed in claim 1 ,
wherein the rotating device comprises one or more steel beams.

11 . A method for rotating a component of an at least partially opened gas turbine by means of a rotating device as claimed in claim 1 , comprising:
installing at least one connection section of the rotating device on a parting joint of the casing of the gas turbine; connecting, in a force-fitting manner, the collar to the gas turbine rotor of the gas turbine; attaching a force-transmitting connection, to the at least one second attachment section of the collar; attaching the force-transmitting connection to the at least one first attachment section; applying a force to the force-transmitting connection in order to rotate the gas turbine rotor.

12 . The method as claimed in claim 11 ,
wherein the rotation takes place on the basis of force control.

13 . The method as claimed in claim 11 ,
wherein the rotation takes place on the basis of angle control in order to rotate through a predefined angular range.

14 . The rotating device as claimed in claim 1 ,
wherein the force-transmitting connection comprises at least one sheathed cable.

15 . The rotating device as claimed in claim 4 ,
wherein the at least one first attachment section comprises an eye or a moveable eye designed to support the sheathed cable.

16 . The rotating device as claimed in claim 5 ,
wherein the at least one second attachment section comprises an eye or a moveable eye designed to support the sheathed cable.

17 . The rotating device as claimed in claim 9 ,
wherein the at least two first attachment sections comprise an eye or a moveable eye designed to support the sheathed cable.

18 . The rotating device as claimed in claim 10 ,
wherein the one or more steel beams comprise I-section steel beams.

19 . The method as claimed in claim 11 ,
wherein the force-transmitting connection comprises at least one sheathed cable.

20 . The method as claimed in claim 13 ,
wherein the angle control is imparted by multiple changes to the first attachment section and the force-transmitting connection and, for each change, subsequently applying a force in order to rotate through the predefined angular range.

Assignees

• Siemens Ag

Inventors

• Hülfenhaus Armin
• Li gang yi

Classifications

• B23P6/002

  Repairing turbine components, e.g. moving or stationary blades, rotors, (B23P6/045 takes precedence) · CPC title

• F01D25/28

  Supporting or mounting arrangements, e.g. for turbine casing · CPC title

• F01D25/246 Primary

  Fastening of diaphragms or stator-rings · CPC title

• F04D29/60

  Mounting; Assembling; Disassembling {(F04D13/10 takes precedence)} · CPC title

• F01D25/34 Primary

  Turning or inching gear · CPC title