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Wheel disc, gas turbine rotor and gas turbine

A technology of gas turbines and discs, applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve the problems of working fluid and energy loss in the hot channel

Pending Publication Date: 2022-05-27
CHINA UNITED GAS TURBINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the related technology, there is a gap between the end teeth, which leads to the loss of working fluid and energy in the hot channel; and a relatively large pre-tightening force must be used between the wheels to ensure that the end teeth are always meshed during operation

Method used

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  • Wheel disc, gas turbine rotor and gas turbine
  • Wheel disc, gas turbine rotor and gas turbine
  • Wheel disc, gas turbine rotor and gas turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0041] A gas turbine rotor 100 according to an embodiment of the present invention will be described below with reference to the drawings. like Figure 1 to Figure 3 As shown, the gas turbine rotor 100 according to the embodiment of the present invention includes a tie rod 1 and a disk assembly.

[0042] The wheel assembly includes a plurality of wheel discs 2 , and the plurality of wheel discs 2 are sheathed on the pull rod 1 . One of the two adjacent wheel discs 2 has a plurality of protruding teeth 21 arranged at intervals around its axis, and the other of the two adjacent wheel discs 2 has a plurality of grooves 22 arranged at intervals around its axis. Wh...

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PUM

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Abstract

The invention provides a wheel disc, a gas turbine rotor and a gas turbine. The gas turbine rotor comprises a pull rod; the wheel disc assembly comprises a plurality of wheel discs, the wheel discs are arranged on the pull rod in a sleeving mode, one of every two adjacent wheel discs is provided with a plurality of convex teeth arranged around the axis of the wheel disc at intervals, and the other one of every two adjacent wheel discs is provided with a plurality of grooves arranged around the axis of the wheel disc at intervals; wherein the length direction of each convex tooth and the length direction of each groove are both the axial direction of the pull rod, and the multiple convex teeth are matched in the multiple grooves in a one-to-one correspondence mode. Therefore, the gas turbine rotor has the advantage that the working medium loss and the energy loss in the gas turbine can be reduced.

Description

technical field [0001] The invention relates to the technical field of gas turbines, in particular to a disk, a gas turbine rotor and a gas turbine. Background technique [0002] Heavy-duty gas turbines are mainly divided into three types of rotors: welded rotors, central tie-rod rotors and distributed tie-rod rotors. The welded rotor connects the disks of all levels of the rotor together by welding; the distributed tie rod rotor connects the disks of all levels through multiple tie rods distributed around the disk, and transmits torque through the end teeth of the disk; the central tie rod rotor, The discs of each stage are tightened by the tie rod in the center, and the torque is transmitted through the end teeth of the discs. In the related technology, there is a gap between the end teeth, which leads to the loss of working fluid and energy in the hot channel; and a relatively large pre-tightening force must be used between the discs to ensure that the end teeth are alwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D5/06
CPCF01D5/06F01D5/066
Inventor 梁晓龙谢意
Owner CHINA UNITED GAS TURBINE TECH CO LTD