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Auxiliary equipment for steam turbines, steam turbines

A technology for auxiliary equipment and steam turbines, applied to mechanical equipment, machines/engines, engine components, etc., can solve problems such as difficult to suppress self-excited vibration of bearing bushes, and achieve the effect of suppressing self-excited vibration

Active Publication Date: 2021-05-14
广州粤能电力科技开发有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a steam turbine auxiliary equipment and a steam turbine

Method used

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  • Auxiliary equipment for steam turbines, steam turbines
  • Auxiliary equipment for steam turbines, steam turbines
  • Auxiliary equipment for steam turbines, steam turbines

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] It should be noted that the term "first\second" involved in this embodiment of the present invention is only used to distinguish similar objects, and does not represent a specific ordering of objects. Understandably, "first\second" is allowed The specific order or sequence may be interchanged under certain circumstances. It is to be understood that the terms "first\second" are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of practice in sequences other than those illustrated or described herein.

[0029] The auxiliary...

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Abstract

The invention relates to an auxiliary equipment of a steam turbine and a steam turbine. The auxiliary equipment of the steam turbine can be used to suppress the self-excited vibration of the bearing bush of the steam turbine. device; the lubricating oil pipe is provided with an oil introduction port and a first oil outlet and a second oil outlet; the oil introduction port is used to introduce lubricating oil from the lubricating oil main pipe of the steam turbine; the first oil outlet and the second oil outlet Extend symmetrically to both sides of the upper part of the bearing pad of the steam turbine, and are used to export the lubricating oil introduced from the oil inlet to the bearing pad; when the monitoring device detects that the bearing pad has self-excited vibration, it opens the controlled oil valve so that the first oil outlet and the second oil outlet to export the lubricating oil to the bearing pad of the steam turbine, so that the exported lubricating oil thickens the oil film between the bearing pad and the journal, and the anti-vortex force used to destroy the rotor for unstable whirl is generated by thickening the oil film Inhibit the occurrence of oil film instability, and inhibit the self-excited vibration of the bearing bush of the steam turbine.

Description

technical field [0001] The invention relates to the technical field of steam turbines, in particular to a steam turbine auxiliary equipment and a steam turbine. Background technique [0002] In the field of steam turbine technology, during the start-up process of the steam turbine unit, especially when the speed is over, when the speed of the rotor rises to a certain value, the rotor is prone to vortex, which increases the vibration and quickly spreads to each bearing bush of the shaft system. The self-excited vibration of the bearing pad will further deteriorate from half-speed eddy to oil film oscillation in severe cases, resulting in the instability of the bearing pad, and even accidents such as tile rolling, which will affect the safe operation of the steam turbine unit. [0003] Traditional methods to eliminate and reduce the self-excited vibration of steam turbine bearing bushes generally include methods such as increasing lubricating oil temperature, increasing specif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D21/00F01D25/18
CPCF01D21/003F01D25/18
Inventor 李松波
Owner 广州粤能电力科技开发有限公司
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