CN109238442A - A kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults - Google Patents
A kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults Download PDFInfo
- Publication number
- CN109238442A CN109238442A CN201810826814.9A CN201810826814A CN109238442A CN 109238442 A CN109238442 A CN 109238442A CN 201810826814 A CN201810826814 A CN 201810826814A CN 109238442 A CN109238442 A CN 109238442A
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- China
- Prior art keywords
- vibration
- power plant
- auxiliary machinery
- driving motor
- vibration data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The present invention relates to a kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults, comprising: obtains the vibration data of each radial journal bearing of generator auxiliary system；The horizontal and vertical vibration data of Auxiliary Machinery of Power Plant and basic, Auxiliary Machinery of Power Plant and driving motor platen, driving motor and subsidiary engine the bottom of driving motor is obtained respectively；The vibration data is analyzed, position and the reason of vibration fault are judged according to the result of the vibration data and feature.The present invention can vibration fault existing for comprehensive descision Auxiliary Machinery of Power Plant system, achieve the purpose that the vibration fault for fast and accurately diagnosing and handling auxiliary system, guarantee the safe and stable operation of Auxiliary Machinery of Power Plant system.
Description
Technical field
The invention belongs to slewing vibrating failure diagnosis technical field more particularly to a kind of Auxiliary Machinery of Power Plant vibration-testings
And method for diagnosing faults.
Background technique
The diagnosis and control of slewing vibration fault be a theory and practice combine closely, based on theory, with
It is practiced as approach, the synthesis sex work for the purpose of solving vibration problem.In power plant, slewing is numerous, all kinds of blowers,
The slewings such as water pump, motor are the important components in heat power generating system.The vibration fault of slewing has prominent
Hair property, endangers the features such as seriousness at duration.Each slewing belongs to some subsystem in power plant, therefore rotation is set
The standby operation for once developing vibration fault and directly affecting subsystem, or even influence the safe operation in entire power plant.
Summary of the invention
The object of the present invention is to provide a kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults, comprehensive descision power plants
Vibration fault existing for auxiliary system achievees the purpose that the vibration fault for fast and accurately diagnosing and handling auxiliary system, guarantees
The safe and stable operation of Auxiliary Machinery of Power Plant system.
The present invention provides a kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults, comprising:
Obtain the vibration data of each radial journal bearing of generator auxiliary system；
Auxiliary Machinery of Power Plant and driving motor basis, Auxiliary Machinery of Power Plant and driving motor foundation sole plate, driving electricity are obtained respectively
The horizontal and vertical vibration data of the bottom of machine and subsidiary engine；
Vibration data is analyzed, position and the reason of vibration fault are judged according to the result of vibration data and feature.
Further, vibration data is analyzed, vibration fault is judged according to the result of the vibration data and feature
Position and reason include:
When Auxiliary Machinery of Power Plant and driving motor basis, Auxiliary Machinery of Power Plant and driving motor platen, driving motor and subsidiary engine
When the difference vibration of bottom reaches 20 μm, judge that driving motor foundation bolt and/or subsidiary engine foundation bolt have the possibility loosened.
Further, vibration data is analyzed, the portion of vibration fault is judged according to the result of vibration data and feature
Position and reason further include:
When shaft coupling bearings at both ends axial vibration phase phase difference is 180 ± 30 °, judges that shaft coupling angle exists and misalign
Possibility；When shaft coupling bearings at both ends radial vibration phase phase difference is 180 ± 30 °, judging shaft coupling, there are Parallel misalignments
It may.
It further, can there are when high-frequency vibration, judge the corresponding faulty generation of radial journal bearing when each radial journal bearing
Energy.
Further, this method further include:
According to the position of vibration fault and reason, the solution of Auxiliary Machinery of Power Plant vibration fault is proposed.
According to the above aspect of the present invention, by Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults, comprehensive descision Auxiliary Machinery of Power Plant
Vibration fault existing for system achievees the purpose that the vibration fault for fast and accurately diagnosing and handling auxiliary system, guarantees power generation
The safe and stable operation of factory's auxiliary system.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Auxiliary Machinery of Power Plant vibration test system of the present invention；
Fig. 2 is the front view of Auxiliary Machinery of Power Plant installation system front view of the present invention.
Figure label:
The first, second foundation bolt of 1- driving motor；2- driving motor third, the 4th foundation bolt；3- subsidiary engine first,
Two foundation bolts；4- subsidiary engine third, the 4th foundation bolt；5- driving motor；6- subsidiary engine；7- first bearing；8- second bearing；9-
3rd bearing；10- fourth bearing；The vibrating sensor that 11- is horizontally mounted；The vertically arranged vibrating sensor of 12-；13- is horizontal
The photoelectric sensor of installation；14- reflective tape；15- shaft coupling；16- Auxiliary Machinery of Power Plant and driving motor foundation sole plate；17- power generation
Factory's subsidiary engine and driving motor basis.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Join shown in Fig. 1 and Fig. 2, present embodiments provides a kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults, packet
It includes:
Auxiliary Machinery of Power Plant vibration test system is by being installed on first bearing 7, second bearing 8,3rd bearing 9, the 4th axis
Hold vibrating sensor (vibrating sensor 11, the vertically arranged vibrating sensor 12 that are horizontally mounted) and the photoelectric sensor on 10
(photoelectric sensor 13 being horizontally mounted) obtains the vibration data of each radial journal bearing of generator auxiliary system, vibrates as judgement
The basic data of failure；
Auxiliary Machinery of Power Plant and driving motor basis 17, Auxiliary Machinery of Power Plant and driving motor foundation sole plate 16 are obtained respectively, are driven
The horizontal and vertical vibration data of the bottom of dynamic motor and subsidiary engine, as the basic data for judging vibration fault；
By Auxiliary Machinery of Power Plant vibration data management system, vibration data is analyzed, according to the result of vibration data
Position and the reason of vibration fault are judged with feature.And then position and reason according to vibration fault, propose Auxiliary Machinery of Power Plant vibration
The solution of dynamic failure.
In the present embodiment, vibration data is analyzed, according to the result of the vibration data and feature judgement vibration
The position of failure and reason include:
When Auxiliary Machinery of Power Plant and driving motor basis, Auxiliary Machinery of Power Plant and driving motor platen, driving motor and subsidiary engine
When the difference vibration of bottom reaches 20 μm, driving motor foundation bolt (the first, second foundation bolt of driving motor can be tentatively judged
1, driving motor third, the 4th foundation bolt 2) and/or subsidiary engine foundation bolt (the first, second foundation bolt of subsidiary engine 3, subsidiary engine
Three, the 4th foundation bolt 4) there are the possibility of loosening.
When shaft coupling bearings at both ends (second bearing 8,3rd bearing 9) axial vibration phase phase difference is 180 ± 30 °, sentence
There is the possibility misaligned in disconnected shaft coupling angle；When shaft coupling bearings at both ends radial vibration phase phase difference be 180 ± 30 °, judgement
There are the possibility of Parallel misalignment for shaft coupling.
When there are the possibility for when biggish high-frequency vibration, judging the corresponding faulty generation of radial journal bearing for each radial journal bearing.
It, can quick, comprehensive descision subsidiary engine vibration fault hair by the Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults
Targeted solution is formulated at raw position, quickly solves vibration problem existing for Auxiliary Machinery of Power Plant, guarantees that power plant is auxiliary
The safe and stable operation of machine system.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults characterized by comprising
Obtain the vibration data of each radial journal bearing of generator auxiliary system；
Obtain respectively Auxiliary Machinery of Power Plant and driving motor basis, Auxiliary Machinery of Power Plant and driving motor foundation sole plate, driving motor and
The horizontal and vertical vibration data of the bottom of subsidiary engine；
The vibration data is analyzed, position and the original of vibration fault are judged according to the result of the vibration data and feature
Cause.
2. a kind of Auxiliary Machinery of Power Plant vibration-testing according to claim 1 and method for diagnosing faults, which is characterized in that institute
It states vibration data to be analyzed, the position of vibration fault is judged according to the result of the vibration data and feature and reason includes:
When Auxiliary Machinery of Power Plant and the bottom on driving motor basis, Auxiliary Machinery of Power Plant and driving motor platen, driving motor and subsidiary engine
Difference vibration when reaching 20 μm, judge that driving motor foundation bolt and/or subsidiary engine foundation bolt have the possibility loosened.
3. a kind of Auxiliary Machinery of Power Plant vibration-testing according to claim 2 and method for diagnosing faults, which is characterized in that institute
It states vibration data to be analyzed, judges that the position of vibration fault and reason are also wrapped according to the result of the vibration data and feature
It includes:
When shaft coupling bearings at both ends axial vibration phase phase difference is 180 ± 30 °, judge that shaft coupling angle can in the presence of what is misaligned
Energy；When shaft coupling bearings at both ends radial vibration phase phase difference be 180 ± 30 °, judge possibility of the shaft coupling there are Parallel misalignment.
4. a kind of Auxiliary Machinery of Power Plant vibration-testing according to claim 3 and method for diagnosing faults, which is characterized in that when each
There are the possibility for when high-frequency vibration, judging the corresponding faulty generation of radial journal bearing for radial journal bearing.
5. a kind of Auxiliary Machinery of Power Plant vibration-testing according to claim 4 and method for diagnosing faults, which is characterized in that also wrap
It includes:
According to the position of vibration fault and reason, the solution of Auxiliary Machinery of Power Plant vibration fault is proposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826814.9A CN109238442A (en) | 2018-07-25 | 2018-07-25 | A kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826814.9A CN109238442A (en) | 2018-07-25 | 2018-07-25 | A kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults |
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| CN109238442A true CN109238442A (en) | 2019-01-18 |
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| CN201810826814.9A Pending CN109238442A (en) | 2018-07-25 | 2018-07-25 | A kind of Auxiliary Machinery of Power Plant vibration-testing and method for diagnosing faults |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958628A (en) * | 2019-03-19 | 2019-07-02 | 华能（上海）电力检修有限责任公司 | A kind of subsidiary engine equipment fault diagnosis and defect examination and repair system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429877A (en) * | 2008-11-28 | 2009-05-13 | 华北电力大学 | Real-time diagnosis method for angle misalignment fault of steam-electric generating set coupling |
| CN104457969A (en) * | 2014-11-19 | 2015-03-25 | 华北电力大学 | Wireless vibration monitoring system applied to auxiliary machine of thermal power plant and provided with self power generation device |
| CN105092196A (en) * | 2015-09-17 | 2015-11-25 | 山东钢铁股份有限公司 | Time spectrum phase fault diagnosis device |
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2018
- 2018-07-25 CN CN201810826814.9A patent/CN109238442A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429877A (en) * | 2008-11-28 | 2009-05-13 | 华北电力大学 | Real-time diagnosis method for angle misalignment fault of steam-electric generating set coupling |
| CN104457969A (en) * | 2014-11-19 | 2015-03-25 | 华北电力大学 | Wireless vibration monitoring system applied to auxiliary machine of thermal power plant and provided with self power generation device |
| CN105092196A (en) * | 2015-09-17 | 2015-11-25 | 山东钢铁股份有限公司 | Time spectrum phase fault diagnosis device |
Non-Patent Citations (1)
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| 王明锐: "汽轮机及主要辅机在线监测诊断系统研究与应用", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958628A (en) * | 2019-03-19 | 2019-07-02 | 华能（上海）电力检修有限责任公司 | A kind of subsidiary engine equipment fault diagnosis and defect examination and repair system and method |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Fengliang Inventor after: Gao Yansong Inventor after: Wang Yonghong Inventor after: Ma Jinbo Inventor after: Jiang Nan Inventor after: Hao Yuguang Inventor before: Gao Yansong Inventor before: Wang Fengliang Inventor before: Wang Yonghong Inventor before: Ma Jinbo Inventor before: Jiang Nan Inventor before: Hao Yuguang |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |