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Method and system for evaluating safety margin of heavy-duty bearing with paint film

A safety margin and bearing technology, applied in the field of bearings, can solve problems such as inability to evaluate the safety state of bearings

Active Publication Date: 2019-11-29
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method and system for evaluating the safety margin of heavy-duty bearings containing paint film, which is used to solve the problem that the prior art cannot evaluate the safety state of the bearing

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  • Method and system for evaluating safety margin of heavy-duty bearing with paint film
  • Method and system for evaluating safety margin of heavy-duty bearing with paint film
  • Method and system for evaluating safety margin of heavy-duty bearing with paint film

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Embodiment Construction

[0072] The invention provides a method and system for evaluating the safety margin of heavy-duty bearings containing paint film, which are used to solve the problem that the prior art cannot evaluate the safety state of the bearing.

[0073] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but 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 belong to the protection scope of the present invention.

[0074] see figure 1 , is a schematic flowchart of a method for evaluating the safety margin of a heavy-duty bearing with varnish film provided in an embodiment of the present invention.

[0075] A method for evaluating the safety margin of heavy-duty bearings containing varnish, including:

[0076] 1...

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Abstract

The invention belongs to the technical field of bearings, and particularly relates to a safety margin assessment method and system for a heavy-load bearing containing paint film. The safety margin assessment method for the heavy-load bearing containing the paint film includes the steps that by obtaining a rotor space position, lubricating oil boundary conditions and other relevant information, thecorrelations of a bearing bush temperature rising value, a bearing load added-weight, a bearing bush installation state and lubricating oil parameter variations are analyzed, the judgment rules of sliding bearing paint film failure deterioration are established, the relation between the bearing bush temperature rising value and the relative thickness of the paint film under a target bearing paintfilm failure is calculated, and the safety margin of the bearing paint film thickness is judged according to the maximum bearing bush temperature rising value.

Description

technical field [0001] The invention belongs to the technical field of bearings, and in particular relates to a method and system for evaluating the safety margin of heavy-duty bearings containing paint films. Background technique [0002] Heavy-duty bearings are mainly used in large-scale rotating equipment in electric power, petrochemical and other industries, and are especially suitable for rotating machinery with high-speed and heavy-load characteristics such as steam turbine generator sets. Varnish, also known as carbon deposits and gelling, is a degradation pollutant that occurs in lubricating oil or hydraulic oil systems. The local high temperature generated when the sliding bearing operates at high speed and heavy load will accelerate the formation of varnish film. After the paint film is formed, it is easy to adhere to the metal surface, especially at the smallest gap of the bearing, resulting in poor lubrication of the bearing, rise in the temperature of the tile,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 张楚杨毅高庆水刘石金格蔡笋
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD