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Rotor system and micro gas turbine generator set

A rotor and compressor technology, applied in gas turbine installations, machines/engines, mechanical equipment, etc., can solve the problems of lengthening, bad, and affecting the stability of the rotor system, and achieve short axial dimensions and good dynamic characteristics. Effect

Pending Publication Date: 2020-04-21
TECH XANADU OF RESONATORY SOLAR SYSTD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first solution is likely to cause technical problems such as unsmooth and insufficient compressor operation and poor heat dissipation of the generator; while the second solution will cause the length of the entire rotor system to be lengthened in the axial direction, and the lengthening of the axial length of the rotor system will affect to the smooth operation of the entire rotor system

Method used

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  • Rotor system and micro gas turbine generator set
  • Rotor system and micro gas turbine generator set
  • Rotor system and micro gas turbine generator set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] In this embodiment, a structure of an integrated bearing 200 is provided. The integrated bearing 200 adopts an integrated air bearing, which not only has a radial support function, but also has an axial support function.

[0088] Among them such as figure 2 , 3 As shown, the integrated bearing 200 includes: a first bearing body 2200, a thrust plate 2300, and a second bearing body 2400; the thrust plate 2300 is fixedly connected or integrally formed with the rotating shaft 100; the first bearing body 2200 and the second bearing body 2400 are equally fitted Set on the rotating shaft 100 and located on both sides of the thrust plate 2300; the first bearing body 2200 has a radial bearing part 2210 and a thrust bearing part 2220 integrally formed, and the radial bearing part 2210 and the rotating shaft 100 have a predetermined radial clearance in the radial direction S1, the thrust bearing part 2220 is installed opposite to the thrust plate 2300 in the axial direction and...

Embodiment 2

[0127] In this embodiment, a motor 400 structure is provided, and the motor 400 adopts a back-winding method to form a first air inlet P1 on the stator of the motor.

[0128] Specifically, such as Figure 9 As shown, the motor 400 includes: a motor stator 410, a motor rotor (not shown in this figure), and a motor housing 430. The motor stator 410 is sleeved on the rotating shaft 100, and maintains a certain gap with the rotating shaft 100 in the radial direction. The casing 430 is covered on the outer periphery of the motor stator 410, and the motor stator 410 is provided with a plurality of air inlets 440 axially penetrating through the motor stator 410, and the air inlets 440 are the first air inlets. Road P1.

[0129] Since the air inlet 440 is provided, the air intake of the compressor 500 can enter the compressor 500 through the air inlet 440, so that the air intake of the compressor 500 is more sufficient, and at the same time, the normal temperature air passing through...

Embodiment 3

[0141] In this embodiment, an anti-rotation structure for the integrated bearing 200 in the second embodiment is provided. A first anti-rotation member 2900 is provided between the first bearing housing 2500 and the first bearing body 2200, and / or between the first bearing housing 2500 and the second bearing body 2400, and the first The anti-rotation member 2900 is used for fixing the first bearing body 2200 relative to the first bearing housing 2500 and / or the second bearing body 2400 relative to the first bearing housing 2500 in the circumferential direction.

[0142] Specifically, one end of the first anti-rotation member 2900 is fixedly connected or integrally formed with the first bearing housing 2500, and the other end of the first anti-rotation member 2900 is detachably connected with the first bearing body 2200 or the second bearing body 2400; or One end of the first anti-rotation member 2900 is detachably connected to the first bearing housing 2500, and the other end ...

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Abstract

The invention provides a rotor system and a micro gas turbine generator set. The rotor system comprises a rotating shaft, an integrated bearing, a motor, a radial bearing, an air compressor and a turbine, wherein the rotating shaft is of an integrated forming structure; the integrated bearing, the motor, the radial bearing, the air compressor and the turbine are arranged on the rotating shaft in sequence; the integrated bearing and the motor are provided with a first air inlet channel penetrating through the integrated bearing and the motor in the axial direction; and the first air inlet channel communicates with an air inlet of the air compressor. In the system, an air inlet is formed in a bearing shell and a stator part of a generator, the inlet air for the air compressor can enter the air compressor through the bearing shell and the air inlet in the stator of the generator, on one hand, the inlet air of the air compressor can cool the coil winding of the generator stator, on the other hand, the inlet air of the air compressor does not detour and does not increase the axial length of the rotor system, and sufficient air intake of the air compressor can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of rotor dynamics, in particular to a rotor system and a micro gas turbine generating set. Background technique [0002] In the technical field of micro gas turbine power generation, a micro gas turbine generating set usually includes a coaxially installed generator and a micro gas turbine. Specifically, a micro gas turbine mainly includes three major components: a compressor, a combustion chamber and a turbine. After the air enters the compressor, it is compressed into high-temperature and high-pressure air, which is then supplied to the combustor and mixed with fuel for combustion. The high-temperature and high-pressure gas generated expands in the turbine to do work, driving the turbine to rotate, and then drives the generator to generate electricity. Since the magnetic components and coil windings in the generator are not resistant to high temperatures, the generator cannot be installed on the hot end o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/12F02C7/18F02C7/06F02C7/20F02C7/32F02C6/00F02C3/04
CPCF02C7/12F02C7/18F02C7/06F02C7/20F02C7/32F02C6/00F02C3/04
Inventor 靳普刘慕华
Owner TECH XANADU OF RESONATORY SOLAR SYSTD CO LTD
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