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Steam turbine generator brush support with RC grounding device and matched shaft end thereof

A technology of steam turbine generator and brush bracket, which is used in connection with grounding device, electromechanical device, casing/cover/support, etc., can solve the problems of nowhere to install RC grounding device, insufficient cooling air volume, etc., to reduce The effect of electrical corrosion, shaft voltage reduction, and installation problem solving

Pending Publication Date: 2021-01-15
SHANDONG QILU ELECTRIC MOTOR MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, there are problems that the brushes of the air-cooled turbogenerator are installed at both ends of the generator casing, the cooling air volume is insufficient, and there is no place to install the RC grounding device.

Method used

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  • Steam turbine generator brush support with RC grounding device and matched shaft end thereof
  • Steam turbine generator brush support with RC grounding device and matched shaft end thereof
  • Steam turbine generator brush support with RC grounding device and matched shaft end thereof

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with specific examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] refer to Figure 1-4 As shown, a turbogenerator brush bracket with an RC grounding device and its supporting shaft end, the brush bracket includes a brush bracket welding part 1, an air guide structure, an excitation brush assembly frame 5 and an RC grounding device; The wind guide structure, excitation brush assembly frame and RC grounding device are respectively arranged on the welding part 1 of the brush bracket, and the wind guiding structure, excitation brush assembly frame and RC grounding device are connected with the brush bracket welding part 1 are respectively connected by bolts; wherein, the RC grounding device is arranged at the rear end of the brush bracket 1; the excitation brush assembly frame ...

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PUM

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Abstract

The invention discloses a steam turbine generator brush support with an RC grounding device and a matched shaft end thereof. The brush support comprises a brush support welding part, an air guide structure, an excitation brush assembly frame, an adjusting structure and an RC grounding device; the air guide structure, the excitation brush assembly frame and the RC grounding device are respectivelyarranged on the brush support welding part; the RC grounding device is arranged at the rear end of the electric brush support welding part; the excitation brush assembly frame is connected with an outgoing line, and the matched shaft end comprises a collecting ring, a fan and a grounding shaft. Shaft voltage can be reduced, electrical corrosion is reduced, damage to a bearing, a sealing device andthe like is avoided, and reliability of a shaft grounding system is improved.

Description

technical field [0001] The invention is applicable to the field of air-cooled stationary excitation air-cooled turbogenerators with rotor air internal cooling, and in particular relates to a brush bracket of a turbogenerator with an RC grounding device and a supporting shaft end thereof. Background technique [0002] The rotor is air-cooled and the rotor coil of the turbogenerator is a hollow wire. The cooling air passes through the inside of the rotor coil, which can take away more heat than the surface cooling. Therefore, the excitation current of the generator rotor is designed to be relatively large, and the stationary excitation brush A large amount of heat is generated between the collector ring and the excitation brush and the collector ring. In order to cool the excitation brush and the collector ring, it is necessary to concentrate the excitation brush and the collector ring to the non-drive end of the generator and design a new brush bracket; at the same time, the s...

Claims

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Application Information

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IPC IPC(8): H02K5/14H02K11/40
CPCH02K5/14H02K11/40
Inventor 董江伟王正平陈旭辛雷袁琳
Owner SHANDONG QILU ELECTRIC MOTOR MFG
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