Device and method for monitoring and controlling safety risk of steam turbine generator bearing on line

A turbo-generator, safety risk technology, applied in safety devices, engine components, machines/engines, etc., can solve the problem of online monitoring and control without the safety risk of turbo-generator bearings

Active Publication Date: 2011-11-02
SHANGHAI POWER EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing thermal protection system for turbogenerators has online protection functions for rotor vibration, bearing bush metal temperature, bearing return oil temperature and bearing lubricating oil pressure, but does not have online monitoring and control functions for turbogenerator bearing safety risks

Method used

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  • Device and method for monitoring and controlling safety risk of steam turbine generator bearing on line
  • Device and method for monitoring and controlling safety risk of steam turbine generator bearing on line
  • Device and method for monitoring and controlling safety risk of steam turbine generator bearing on line

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Embodiment

[0048] Such as figure 1As shown, the block diagram of the online monitoring and control method for the safety risk of the steam turbine generator bearing of the present invention, the online monitoring and control device for the safety risk of the steam turbine generator bearing of the present invention consists of a vibration sensor 1, a bearing bush metal temperature sensor 2, a bearing return oil temperature Sensor 3, bearing lubricating oil pressure sensor 4, steam turbine generator thermal protection system interface, calculation server, web server and client browser, the turbine side bearing and the exciter side bearing of the generator are respectively equipped with two The vibration sensor 1, a bearing bush metal temperature sensor 2, a bearing oil return temperature sensor 3 and a bearing lubricating oil pressure sensor 4 installed at a 45° horizontal plane, vibration sensor 1, bearing bush metal temperature sensor 2, and bearing oil return temperature sensor 3 and t...

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Abstract

The invention relates to a method for monitoring and controlling safety risk of a steam turbine generator bearing on line. The method comprises: calculating fault probability of a bearing of the steam turbine generator, monitoring a rotor vibration signal of the steam turbine generator on line, monitoring a bearing bush metal temperature signal of the steam turbine generator on line, monitoring a bearing oil back temperature signal of the bearing on line, monitoring a bearing lubricating oil pressure signal on line, calculating an average maintenance time of the bearing, determining a weight coefficient of a bearing fault result, calculating a safe risk rank number of the steam turbine generator bearing, evaluating a safe risk grade of the steam turbine generator bearing, determining a maximum safe risk rank number of the steam turbine generator bearing, and recommending a risk control measure of the steam turbine generator bearing. The invention provides the method for monitoring and controlling the safety risk of the steam turbine generator bearing on line, and realizes the online calculation and control of the safety risk of the steam turbine generator bearing.

Description

technical field [0001] The invention relates to an on-line monitoring and control device and method for the safety risk of a steam turbine generator bearing, and belongs to the technical field of the steam turbine generator. Background technique [0002] The bearing of the turbogenerator is a radial bearing, which is used to bear the weight of the turbogenerator rotor and the unbalanced force of rotation and determine the radial position of the rotor, so as to ensure the correct radial clearance between the turbogenerator rotor and the stator . The failure modes of bearing pad burning, bearing pad wear, bearing oil leakage and high bearing pad temperature occur in turbogenerator bearings, and the consequences are serious. The safety risk of turbogenerator bearings is related to the possibility of bearing failure and the consequences of bearing failure; related to hazards. The existing thermal protection system for turbogenerators has online protection functions for rotor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D21/00F01D25/16
Inventor 史进渊汪勇杨宇邓志成李汪繁
Owner SHANGHAI POWER EQUIP RES INST
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