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Inner and outer end cover fixing structure for steam turbine generator and mounting method thereof

A technology for fixing turbogenerators and end covers, which is applied in the manufacture of motor generators, electromechanical devices, casings/covers/supports, etc., and can solve problems such as potential safety hazards and loosening of inner and outer end covers

Active Publication Date: 2020-10-27
SHANDONG QILU ELECTRIC MOTOR MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the on-site operation response, the fixing of the inner and outer end caps will become loose after long-term operation, and there is a great potential safety hazard

Method used

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  • Inner and outer end cover fixing structure for steam turbine generator and mounting method thereof
  • Inner and outer end cover fixing structure for steam turbine generator and mounting method thereof
  • Inner and outer end cover fixing structure for steam turbine generator and mounting method thereof

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] A kind of internal and external end cover fixing structure for turbogenerator, such as image 3 As shown, it includes a support bolt 10, a connecting screw 6, a fastening nut 7 and a bushing 4; the support bolt 10 is installed on the inner end cover 2, and the screw rod of the support bolt 10 is provided with an internal thread w...

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Abstract

The invention provides an inner and outer end cover fixing structure for a steam turbine generator and a mounting method thereof, and relates to the field of air-cooled steam turbine generators. A support bolt is mounted on an inner end cover, and an internal thread is arranged in a screw of the support bolt. The bushing is mounted on the outer end cover, and an internal thread is arranged in thebushing. One end of the connecting screw is in threaded fit with the internal thread of the supporting bolt, and the other end is in threaded fit with the internal thread of the bushing. One fasteningnut locks one end, close to the outer end cover, of the connecting screw, and the other fastening nut locks one end, close to the inner end cover, of the connecting screw. The installation method mainly comprises the three steps of preparation, pre-installation and formal installation, so that the inner end cover and the outer end cover of the steam turbine generator are connected more stably, and the anti-loosening effect is achieved. The pre-installation work before formal installation can ensure that the fixing structures of the inner and outer end covers of the steam turbine generator canbe installed as required.

Description

technical field [0001] The invention belongs to the field of air-cooled turbogenerators, and in particular relates to a fixing structure of inner and outer end covers for a turbogenerator and an installation method thereof. Background technique [0002] The end cover of the air-cooled turbogenerator plays the role of sealing, wind guiding and insulation during the operation of the generator. The end cover is divided into an inner end cover and an outer end cover. The L-shaped disc structure of the inner end cover and the air guide ring on the outer end cover work together to guide the wind generated by the fan rotation along the air gap axis between the rotor and the stator. to the flow. The inner end cover is made of insulating material, which creates insulation between the outer end cover and the stator winding while guiding the wind. The outer end cover is on the outermost side, mainly capable of sealing the casing of the generator and performing the function of safety ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/04H02K15/14
CPCH02K5/04H02K15/14Y02E10/72
Inventor 张文泉宋术青张衍康张晓彤
Owner SHANDONG QILU ELECTRIC MOTOR MFG
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