Method for calculating all round properties of bearing of turbo generator in large size

A technology of steam turbine generator and calculation method, applied in the directions of bearings, shafts and bearings, engine components, etc., can solve the problem of lack of radial bearing design and analysis methods, achieve clear and convenient pre- and post-processing, avoid operation errors, and facilitate calculation Effect

Inactive Publication Date: 2006-04-19
SHANGHAI UNIV +1
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lack of radial bearing design analysis methods suitable for actual engineering design

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for calculating all round properties of bearing of turbo generator in large size
  • Method for calculating all round properties of bearing of turbo generator in large size
  • Method for calculating all round properties of bearing of turbo generator in large size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0215] A preferred embodiment of the present invention is as follows:

[0216] 1. Bearing type: lower tile tilting tile-upper tile fixed tile open eccentric circumferential groove hybrid bearing (see Figure 9 )

[0217] Working condition parameters:

[0218] Speed ​​= 3600r / min

[0219] Load = 330000N Lubricating oil: No. 30 turbine oil

[0220] Inlet oil temperature = 40°C

[0221] Oil inlet pressure=.1MPa

[0222] Bearing geometry parameters:

[0223] Tilting tile opening angle=74.89°

[0224] Pivot angle = 37.45°

[0225] Upper tile opening angle = 180°

[0226] Upper tile pre-negative distance = 0mm

[0227] Radius clearance = .5mm

[0228] Bearing diameter = 500mm

[0229] Bearing length = 400mm

[0230] Bottom radius of upper tile circumferential groove = 253mm

[0231] The length of the circumferential groove of the upper tile=280mm

[0232] Circumferential vertical vertical eccentricity of upper tile=4.6mm

[0233] The horizontal eccentricity of the cir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method for calculating comprehensive performance of bearing for generator on large ¿C scale turbine includes calling on pretreatment and post ¿C treatment processing module to carry out design pretreatment of bearing for selecting type of bearing and for inputting relevant bearing geometric parameter and single or integrated operation mode parameter , calling on relevant bearing calculation module to calculate parameters of bearing static ¿C dynamic character and bearing stability according to selected type of bearing , returning back to pretreatment and post ¿C treatment module to carry out design post ¿C treatment of bearing.

Description

technical field [0001] The invention relates to a calculation method for bearing performance, in particular to a calculation method for comprehensive performance of a large steam turbine generator bearing. Background technique [0002] The radial sliding bearing is a key component of a large generator set, bearing the weight and radial force of the entire turbine generator rotor and parts on the shaft. When the sliding bearing is working, it is required that the temperature of the oil film should not be too high, the thickness of the oil film should not be too small, and the pressure of the oil film should not be too high. If it is too large, its flow rate is directly related to the oil supply system, and its dynamic characteristics directly affect the stability and critical speed of the entire rotor system. Moreover, with the increase in capacity, size and bearing capacity of turbogenerator sets, higher requirements are put forward for the performance of sliding bearings. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F01D25/16F16C17/02
Inventor 王小静顾越张直明徐钢峰刘永武姚金传王敏
Owner SHANGHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap