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Multi-parameter correction turbo generator unit remote vibration fault diagnosis method and system

A technology of turbo-generator set and generator set, which is applied in the test of machine gear/transmission mechanism, the test of engine, the test of mechanical parts, etc., can solve the difficulty of vibration fault diagnosis, the intervention and adjustment of vibration fault of turbo-generator set , failure to guide power plants in a timely manner

Inactive Publication Date: 2017-08-11
DATANG DONGBEI ELECTRIC POWER TESTING & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vibration faults of rotating equipment have the characteristics of suddenness, persistence, and seriousness of hazards, and the solution and control of vibration faults of steam turbine generators are the most important and urgent among the vibrations of many rotating equipment. Professionals in vibration fault diagnosis of steam turbine generators Due to factors such as strong nature and many influencing factors, it is difficult to diagnose the vibration fault of the steam turbine generator set, and it is impossible to guide the power plant to intervene and adjust the vibration fault of the steam turbine generator set in time.

Method used

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  • Multi-parameter correction turbo generator unit remote vibration fault diagnosis method and system
  • Multi-parameter correction turbo generator unit remote vibration fault diagnosis method and system
  • Multi-parameter correction turbo generator unit remote vibration fault diagnosis method and system

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Embodiment 1

[0045] The multi-parameter corrected remote vibration fault diagnosis method for turbo-generator sets in this embodiment includes: the establishment of a multi-parameter historical database and the diagnosis of vibration faults; wherein,

[0046] The establishment of the multi-parameter historical database: establish the standard numerical intervals corresponding to the corresponding parameters that affect the shafting vibration of the generator set when the rotor vibration data is normal;

[0047] Diagnosis of the vibration fault described:

[0048] Collect the real-time vibration data of each rotor of the shaft system of the steam turbine generator set, and simultaneously collect the real-time values ​​of multiple parameters that affect the vibration of the shaft system of the generator set corresponding to the vibration vibration data;

[0049] output the acquired vibration data of each rotor to the front-end device, and the front-end device performs analog / digital conversi...

Embodiment 2

[0064] Such as Figures 1 to 3 As shown, the multi-parameter corrected remote vibration fault diagnosis system for turbogenerator sets in this embodiment includes:

[0065] The series-connected steam turbine high and medium pressure rotor HIP, steam turbine low pressure LP, steam turbine generator set generator rotor GEN, and the steam turbine high and medium pressure rotor front bearing respectively supporting the steam turbine high and medium pressure rotor HIP, steam turbine low pressure LP, and steam turbine generator set generator rotor GEN 1. Rear bearing of steam turbine high and medium pressure rotor 2; Front bearing of steam turbine low pressure rotor 3; Rear bearing of steam turbine medium pressure rotor 4; Front bearing of steam turbine generator generator rotor 5;

[0066] The multi-parameter historical database is used to store the standard value intervals of multiple parameters that affect the vibration of the shafting of the generator set corresponding to the ro...

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Abstract

The present invention relates to a multi-parameter correction turbo generator unit remote vibration fault diagnosis method and system. Two eddy-current sensors which form an 90-degree angle with each other and a proximitor are installed at two support bearings of each rotor of a turbine-generator shaft system to perform real-time online collection of vibration data of the turbine-generator shaft system, and the vibration data is taken as the basis of remote diagnosis of the turbo generator unit; operation parameters closely related to the turbine-generator shaft system such as temperature differences of upper cylinders and lower cylinders of a high pressure cylinder and an intermediate pressure cylinder and set condenser vacuum are subjected to real-time online collection through each related sensor; and the measured vibration data of the turbo generator shaft system and the current parameters are fed into an optimally operating vibration database, and through comparison analysis, a result is transmitted to a vibration engineer in a remote mode for performing diagnosis and early prediction of vibration faults.

Description

technical field [0001] The invention relates to the field of vacuum maintenance and energy saving of condensers in power plants, in particular to a multi-parameter corrected remote vibration fault diagnosis method and system for steam turbine generator sets. Background technique [0002] Diagnosis and control of vibration faults of rotating equipment is a comprehensive work that combines theory and practice closely, is based on theory, takes practice as the approach, and aims at solving vibration problems. In a thermal power plant, there are many rotating devices, and various types of fans, water pumps, motors and other rotating devices are important components of a thermal power generation system. Vibration faults of rotating equipment have the characteristics of suddenness, persistence, and seriousness of hazards, and the solution and control of vibration faults of steam turbine generators are the most important and urgent among the vibrations of many rotating equipment. P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02G01M13/02
CPCG01M13/028G01M15/02
Inventor 王凤良张贵强赵凯常应文
Owner DATANG DONGBEI ELECTRIC POWER TESTING & RES INST
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