CN205677754U - A kind of high water head large capacity hydroelectric generator group vibration throw protection device - Google Patents
A kind of high water head large capacity hydroelectric generator group vibration throw protection device Download PDFInfo
- Publication number
- CN205677754U CN205677754U CN201620532890.5U CN201620532890U CN205677754U CN 205677754 U CN205677754 U CN 205677754U CN 201620532890 U CN201620532890 U CN 201620532890U CN 205677754 U CN205677754 U CN 205677754U
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- China
- Prior art keywords
- bearing bracket
- upper spider
- drainage pipe
- vibration sensor
- throw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 241000239290 Araneae Species 0.000 claims abstract description 34
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009414 blockwork Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model discloses a kind of high water head large capacity hydroelectric generator group vibration throw protection device, including generating set, described generating set includes lower bearing bracket and upper spider, and upper spider is arranged on lower bearing bracket；The bottom of lower bearing bracket is provided with head cover drainage pipe, is provided with water wheels between lower bearing bracket and upper spider, and water wheels are connected with lower guide bearing；The lower end of lower guide bearing is arranged in head cover drainage pipe；Upper spider is provided with upper spider vertical vibration sensor and upper spider horizontal vibration sensor, and lower bearing bracket is provided with lower bearing bracket vertical vibration sensor and lower bearing bracket horizontal vibration sensor；Lower guide bearing is provided with lower guide bearing throw sensor, and head cover drainage pipe is provided with head cover drainage pipe vertical vibration sensor.The utility model is convenient realizes high accuracy, with high reliability vibration monitoring.
Description
Technical field
The utility model relates to a kind of protection device, particularly to a kind of high water head large capacity hydroelectric generator group vibration pendulum
Degree protection device.
Background technology
Russia Sa Yang-Shu Shensike power station occurs operating unit vibration to cause closure stud to rupture, and causes accident machine
Group hydraulic turbine kickoff hole, the water in generating system by piloting water does not cuts off in time and enters factory building in a large number, cause full station unit outage, 75
The dead special major accident of people.Xiaowan Hydropower Station is underground power house, diversion and power formula structure, installed capacity of power station 4200MW,
Install 6, single-machine capacity 700MW, the upright Francis hydroturbine generator set of the vertical gold of unit, the maximum drop 251m of water levels of upstream and downstream.
Prevent from unit to be in vibrating area for a long time to run, prevent the major tasks that water logging workshop accident is that power plant safety produces.Power station sets
At the meter initial stage, take into consideration only to vibration of hydrogenerator set, the collection of throw service data and modeling analysis, unit is not shaken
Dynamic, throw exceedes operation and allows operating mode value and the situation in permission time limit to take the safeguard measure of necessity.Meanwhile, " unattended, few
People is on duty " be the developing direction of hydroelectric station operation pattern, improve the safeguard measure of vibration of hydrogenerator set, throw, prevent because of
Vibration, the excessive mechanical accident that causes of throw, water logging workshop accident are that the necessary technology realizing " unattended, few man on duty " is arranged
Execute.
Utility model content
The utility model is mainly the technical problem solving existing for prior art, thus it is high-precision to provide one conveniently to realize
The high water head large capacity hydroelectric generator group vibration throw protection device of degree, with high reliability vibration monitoring.
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals:
A kind of high water head large capacity hydroelectric generator group vibration throw protection device, including generating set, described generator
Group includes lower bearing bracket and upper spider, and upper spider is arranged on lower bearing bracket；The bottom of lower bearing bracket is provided with head cover drainage pipe, lower bearing bracket with
Being provided with water wheels between upper spider, water wheels are connected with lower guide bearing；The lower end of lower guide bearing is arranged in head cover drainage pipe；Upper spider
Being provided with upper spider vertical vibration sensor and upper spider horizontal vibration sensor, lower bearing bracket is provided with lower bearing bracket vertical vibration and passes
Sensor and lower bearing bracket horizontal vibration sensor；Lower guide bearing is provided with lower guide bearing throw sensor, and head cover drainage pipe is provided with
Head cover drainage pipe vertical vibration sensor.
Further, described lower guide bearing throw sensor is arranged on the lateral wall position of lower guide bearing.
Further, described head cover drainage pipe vertical vibration sensor is arranged on the lateral wall position of head cover drainage pipe.
Further, the bottom of described head cover drainage pipe is provided with spiral case.
Further, the bottom of described spiral case is provided with draft tube.
Use the high water head large capacity hydroelectric generator group vibration throw protection device of technique scheme, can be by upper machine
Frame vertical vibration sensor and upper spider horizontal vibration sensor are arranged on upper spider；Lower bearing bracket vertical vibration can be sensed
Device and lower bearing bracket horizontal vibration sensor are arranged on lower bearing bracket；It is arranged on lower guide bearing throw sensor on lower guide bearing,
It is arranged on head cover drainage pipe vertical vibration sensor on head cover drainage pipe；By upper spider vertical vibration sensor, upper spider
Horizontal vibration sensor, lower bearing bracket vertical vibration sensor, lower bearing bracket horizontal vibration sensor, lower guide bearing throw sensor with
And head cover drainage pipe vertical vibration sensor high accuracy, with high reliability realize to lower bearing bracket, upper spider, head cover drainage pipe and
Lower guide bearing can realize vibration monitoring.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing of required use is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model high water head large capacity hydroelectric generator group vibration throw protection device.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, thus protection domain of the present utility model is made apparent clearly
Define.
As it is shown in figure 1, a kind of high water head large capacity hydroelectric generator group vibration throw protection device, including generating set,
Described generating set includes lower bearing bracket 1 and upper spider 2, and upper spider 2 is arranged on lower bearing bracket 1；The bottom of lower bearing bracket 1 is provided with top cover
Drainpipe 3, is provided with water wheels 6 between lower bearing bracket 1 and upper spider 2, water wheels 6 are connected with lower guide bearing 7；The lower end of lower guide bearing 7 sets
Put in head cover drainage pipe 3；Upper spider 2 is provided with upper spider vertical vibration sensor 8 and upper spider horizontal vibration sensor 9,
Lower bearing bracket 1 is provided with lower bearing bracket vertical vibration sensor 10 and lower bearing bracket horizontal vibration sensor 11；Lower guide bearing 7 is provided with down
Guide bearing throw sensor 12, head cover drainage pipe 3 is provided with head cover drainage pipe vertical vibration sensor 13；Lower guide bearing throw passes
Sensor 12 is arranged on the lateral wall position of lower guide bearing 7；Head cover drainage pipe vertical vibration sensor 13 is arranged on head cover drainage pipe 3
Lateral wall position；The bottom of head cover drainage pipe 3 is provided with spiral case 4, and the bottom of spiral case 4 is provided with draft tube 5.
The utility model high water head large capacity hydroelectric generator group vibration throw protection device, can be by upper spider Vertical Vibrating
Dynamic sensor 8 and upper spider horizontal vibration sensor 9 are arranged on upper spider 2；Can be by lower bearing bracket vertical vibration sensor 10
It is arranged on lower bearing bracket 1 with lower bearing bracket horizontal vibration sensor 11；Lower guide bearing throw sensor 12 is arranged on lower guide bearing 7
On, it is arranged on head cover drainage pipe vertical vibration sensor 13 on head cover drainage pipe 3；By upper spider vertical vibration sensor the 8th,
Upper spider horizontal vibration sensor the 9th, lower bearing bracket vertical vibration sensor the 10th, lower bearing bracket horizontal vibration sensor the 11st, lower guide bearing
Throw sensor 12 and head cover drainage pipe vertical vibration sensor 13 high accuracy, realize to lower bearing bracket the 1st, upper machine with high reliability
Frame the 2nd, head cover drainage pipe 3 and lower guide bearing 7 can realize vibration monitoring；This generating set is by shaking that sensor collects
Dynamic, throw value accesses signal acquisition and processing apparatus by hard wired mode, is analyzed and Logical Configuration by device internal data
After process, generate " vibration, the excessive alarm signal of throw " and " vibration, throw excessive shutdown letter according to vibration position and measured value
Number ", two signals deliver to computer supervisory control system LCU by hardwire with the form that SOE measures respectively, to realize vibration, throw
Excessive warning and startup " emergency shutdown flow process " realize the purpose of stoppage protection.
The utility model high water head large capacity hydroelectric generator group vibration throw protection device, in system architecture, runout is protected
Protecting system signals collecting sensor, measurement loop, signal acquisition module are completely independent configuration, and not mixing with outside other system makes
With；The data message collecting only is one-way transmitted to outside other system, not mutual with their generation information；Protection device is adopted
Original mold block works alone, and wherein a certain passage, the fault of module do not affect other parts and normally work, and improve data acquisition
Reliability.On Logic judgment, the higher limit of single vibration throw measuring point, the pressing plate of body warning simultaneously puts into, and " vibration is outputed in only time delay
Throw one-level is reported to the police " report to the police to computer supervisory control system；The higher limit of single vibration throw measuring point, the pressing plate of body warning simultaneously is thrown
Entering, only time delay outputs " vibration throw secondary alarm " warning to computer supervisory control system；Two of same position with type measuring point
Simultaneously higher limit, body is shut down pressing plate and is put into simultaneously, and time delay outputs " vibration throw shutdown " signal to computer supervisory control system,
Computer supervisory control system receives " vibration throw shutdown " signal, and shuts down pressing plate input position, starts " urgent thing through filtering wave by prolonging time
Therefore shut down flow process ", and output and drop into mouth of a river emergency gate signal cut water turbine set power source；Logic judgment condition covers machine
Group is shut down to generating, idle running, zero load, generating, load adjustment, generating to shutdown, removal of load various working.On fixed value calculation, report
Alert and shutdown definite value every unit can individually calculate according to self-operating feature, set.By to start process, stopping process,
The vibration of varying duty process and load dump test, throw data statistic analysis, set in conjunction with the hydraulic turbine, generator set vibration, throw
Evaluation and vibrations of rotating components throw definite value technical specification, determine vibration throw alarming value and the shutdown value of each unit；Definite value
Determine that mode has taken into full account that compressor emergency shutdown is many to generating, idle running, zero load, generating, load adjustment, generating to shutdown, removal of load
Plant the vibration allowing under operating mode, throw situation.Sensor is installed, the low frequency component producing in order to avoid startup-shutdown process vibrations
Cause channel failure to alert the impact of device, between vibrating sensor and tested surface, be mounted with isolation pad, effectively subtract
The little impact of low frequency component.
The above, detailed description of the invention only of the present utility model, but protection domain of the present utility model does not limit to
In this, any change expected without creative work or replacement, all should cover within protection domain of the present utility model.
Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims are limited.
Claims (5)
1. a high water head large capacity hydroelectric generator group vibration throw protection device, including generating set, it is characterised in that: institute
Stating generating set and including lower bearing bracket and upper spider, upper spider is arranged on lower bearing bracket；The bottom of lower bearing bracket is provided with head cover drainage pipe,
Being provided with water wheels between lower bearing bracket and upper spider, water wheels are connected with lower guide bearing；The lower end of lower guide bearing is arranged on head cover drainage pipe
In；Upper spider is provided with upper spider vertical vibration sensor and upper spider horizontal vibration sensor, and lower bearing bracket is provided with lower bearing bracket
Vertical vibration sensor and lower bearing bracket horizontal vibration sensor；Lower guide bearing is provided with lower guide bearing throw sensor, and top cover is arranged
Water pipe is provided with head cover drainage pipe vertical vibration sensor.
2. high water head large capacity hydroelectric generator group vibration throw protection device according to claim 1, it is characterised in that:
Lower guide bearing throw sensor is arranged on the lateral wall position of lower guide bearing.
3. high water head large capacity hydroelectric generator group vibration throw protection device according to claim 1, it is characterised in that:
Head cover drainage pipe vertical vibration sensor is arranged on the lateral wall position of head cover drainage pipe.
4. high water head large capacity hydroelectric generator group vibration throw protection device according to claim 1, it is characterised in that:
The bottom of head cover drainage pipe is provided with spiral case.
5. high water head large capacity hydroelectric generator group vibration throw protection device according to claim 4, it is characterised in that:
The bottom of spiral case is provided with draft tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532890.5U CN205677754U (en) | 2016-06-03 | 2016-06-03 | A kind of high water head large capacity hydroelectric generator group vibration throw protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532890.5U CN205677754U (en) | 2016-06-03 | 2016-06-03 | A kind of high water head large capacity hydroelectric generator group vibration throw protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205677754U true CN205677754U (en) | 2016-11-09 |
Family
ID=57434962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620532890.5U Withdrawn - After Issue CN205677754U (en) | 2016-06-03 | 2016-06-03 | A kind of high water head large capacity hydroelectric generator group vibration throw protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205677754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075637A (en) * | 2019-11-27 | 2020-04-28 | 国网新源控股有限公司回龙分公司 | Method for monitoring vibration of pumped storage unit |
-
2016
- 2016-06-03 CN CN201620532890.5U patent/CN205677754U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075637A (en) * | 2019-11-27 | 2020-04-28 | 国网新源控股有限公司回龙分公司 | Method for monitoring vibration of pumped storage unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161109 Effective date of abandoning: 20240112 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161109 Effective date of abandoning: 20240112 |