摘要:
The invention relates to a method for cooling a gas turbine comprising a rotor, said method being carried out after the operation of the gas turbine and whereby the rotor is driven at least intermittently during a cooling phase at a reduced nominal speed. To provide a gas turbine with a reduced down time, a liquid is introduced at least intermittently into the air stream upstream of the compressor during the cooling phase.
摘要:
The invention relates to a fitting device for producing the arrangement for locking a sealing element, arranged at the front end on a rotor of a turbine, against a displacement in the circumferential direction, the sealing element locking moving blades arranged on the rotor against an axial displacement. Furthermore, the invention comprises a method of producing the arrangement for locking a sealing element, arranged at the front end on a rotor of a turbine, against a displacement in the circumferential direction. The quality of the fitting can be further increased by means of a modular, mobile fitting device which secures the sealing element for the duration of the bending operation.
摘要:
A device for pivoting a rotor of a turbomachine from a first—preferably horizontal—position into a second—preferably vertical—position is provided. The rotor includes a plurality of rotor discs held together by at least one tension rod, the device includes two sidewall elements arranged parallel to one another, a bridge element connecting the sidewall elements to one another, and a divisible turning ring for form-fittingly holding an axial section of the rotor to be positioned perpendicularly. The rotor further includes two pins rotatably seated in the sidewall elements and arranged flush to the turning ring in order to pivot the turning ring about a pivot axis parallel to the horizontal plane. The bridge element includes a disk, wherein the disk is movable perpendicularly to the horizontal plane in order to be bolted in a flange-like manner onto a rotor retained by the device.
摘要:
A device for pivoting a rotor of a turbomachine from a first—preferably horizontal—position into a second—preferably vertical—position is provided. The rotor includes a plurality of rotor discs held together by at least one tension rod, the device includes two sidewall elements arranged parallel to one another, a bridge element connecting the sidewall elements to one another, and a divisible turning ring for form-fittingly holding an axial section of the rotor to be positioned perpendicularly. The rotor further includes two pins rotatably seated in the sidewall elements and arranged flush to the turning ring in order to pivot the turning ring about a pivot axis parallel to the horizontal plane. The bridge element includes a disk, wherein the disk is movable perpendicularly to the horizontal plane in order to be bolted in a flange-like manner onto a rotor retained by the device.
摘要:
An arrangement is presented for axially securing rotating blades in a rotor, having a shaft collar on whose external circumference rotating blade securing grooves which extend in the axial direction of the rotor are provided. At one end side face of the shaft a projection is arranged in the region of the securing grooves, in which projection a circumferential groove which is open radially towards the outside is provided and said projection having securing grooves which are arranged in each rotating bade, sheet-metal-shaped sealing elements which each engage in the circumferential groove and in the securing groove and form an end side sealing ring in the circumferential direction being provided for axially securing the rotating blades, and at least one of the sealing elements comprising a sheet metal strip which is attached to said sealing ring in order to secure the sealing elements against displacement in the circumferential direction.