CN106568582A - Air cooling island framework vibration monitoring method - Google Patents
Air cooling island framework vibration monitoring method Download PDFInfo
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- CN106568582A CN106568582A CN201510658155.9A CN201510658155A CN106568582A CN 106568582 A CN106568582 A CN 106568582A CN 201510658155 A CN201510658155 A CN 201510658155A CN 106568582 A CN106568582 A CN 106568582A
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- test point
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- air
- vibration
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Abstract
The invention discloses an air cooling island framework vibration monitoring method. As for each column of framework, N test points are selected on the column of framework, wherein N is a positive integer greater than 1; the vibration values of each test point on M preset directions are acquired by using an ODS technology, wherein M is a positive integer greater than 1; and all the acquired vibration values are comprehensively analyzed so that the monitoring result of the column of framework is obtained. The reliability of the monitoring result can be enhanced by applying the air cooling island framework vibration monitoring method.
Description
Technical field
The present invention relates to Air-Cooling Island technology, more particularly to a kind of Air-Cooling Island frame vibration monitoring method.
Background technology
Air-Cooling Island is the core component of Direct Air-Cooled Turbo-generator Set, is 2008 from the external new technology introduced, mesh
It is widely applied in the front levels of 300MW at home, 600MW levels and 1000MW level Turbo-generator Sets.
The technology uses air as cooling medium, instead of traditional recirculated water and cooling tower, so as to reduce circulation
Water vapor is lost, and has saved substantial amounts of water resource, particularly especially suitable in the deficienter the Northwest of water resource.
Air-Cooling Island generally by the way of high-order arrangement, by tens of air cooling blower fans cooling air is provided, will be by steam discharge
The turbine discharge that pipeline is sent in air cooling tubes condenser is condensed into water, and condensate sends back to steam turbine by condensate pump again
Heat regenerative system in.
Air cooling blower fan is generally laid on 40～50 meters of high frameworks, is made up of the part such as motor, reductor.Motor,
Reductor etc. adopts the upright parallel axle kind of drive, using variable-frequency control technique, cause to vibrate for a long time it is big, subtract
The defects such as fast machine well damage.
And the Long-term Vibration of air cooling blower fan can largely affect the rigidity of Air-Cooling Island framework so as to deform, enter
And dangerous, the irregular operation of Air-Cooling Island framework and auxiliary device are caused, therefore it is necessary to shake to Air-Cooling Island framework
Emotionally condition is monitored in time.
Existing monitoring mode mainly carries out personal monitoring's (measurement) using simple vibration detection instrument, and monitoring accuracy is low,
And easily disturbed by other extraneous factors, so as to cause the reliability of monitoring result low.
The content of the invention
In view of this, the invention provides a kind of Air-Cooling Island frame vibration monitoring method, it is possible to increase monitoring result can
By degree.
In order to achieve the above object, the technical scheme is that what is be achieved in that：
A kind of Air-Cooling Island frame vibration monitoring method, including：
For each column framework, N number of test point is selected on the row framework respectively, N is the positive integer more than 1；
Using operation deformation ODS technologies, vibration values of each test point on M predetermined direction, M are obtained respectively
It is the positive integer more than 1；
Each vibration values to getting carry out comprehensive analysis, obtain the monitoring result of the row framework.
It can be seen that, using scheme of the present invention, using each predetermined party of each test point selected on ODS technical limit spacing frameworks
Vibration values upwards, and by carrying out comprehensive analysis to each vibration values, required monitoring result is obtained, so as to avoid
Problems of the prior art, and then improve the reliability of monitoring result.
Description of the drawings
Fig. 1 is the flow chart of Air-Cooling Island frame vibration monitoring method embodiment of the present invention.
Fig. 2 is the schematic diagram of each test point of the present invention.
Specific embodiment
In order that technical scheme is clearer, clear, develop simultaneously referring to the drawings embodiment, to the present invention
The scheme is described in further detail.
Fig. 1 is the flow chart of Air-Cooling Island frame vibration monitoring method embodiment of the present invention, as shown in figure 1, including following
Step 11～13.
Step 11：For each column framework, N number of test point is selected on the row framework respectively, N is just whole more than 1
Number.
Step 12：Using operation deformation (ODS, Operational Deflection Shapes) technology, obtain respectively every
Vibration values of the individual test point on M predetermined direction, M is the positive integer more than 1.
Step 13：Each vibration values to getting carry out comprehensive analysis, obtain the monitoring result of the row framework.
As it was previously stated, N is the positive integer more than 1, concrete value can be decided according to the actual requirements, preferably, N is
Even number.
Accordingly, if with the row air cooling blower fan on the row framework as line of demarcation, N/2 test point is located at boundary
On passageway on the left of line, in addition N/2 test point is located on the passageway on the right side of line of demarcation, and the test point symmetry of both sides
Distribution.
Illustrate：
Fig. 2 is the schematic diagram of each test point of the present invention, as illustrated in fig. 2, it is assumed that being laid with 7 altogether on the row framework
Platform air cooling blower fan, the region beyond air cooling blower fan is passageway, for every air cooling blower fan, can respectively its upper left corner,
A test point is respectively laid on the passageway in the lower left corner, the upper right corner and the lower right corner, so as to obtain test point 1～4, test point
6～9, test point 10～13 and test point 15～18, it should be noted that the corresponding test point of adjacent air cooling blower fan is
Have what is overlapped, such as test point 2, test point 17 are the test point for overlapping, special, due to centre position
Vibration is generally larger, then can be directed to air cooling blower fan in an intermediate position, extra to lay two test points more, that is, exist
A test point 5 is laid in the middle of test point 4 and test point 6, one is laid between test point 13 and test point 15
Test point 14, so, is obtained 18 test points, and wherein test point 1～9 is distributed in the (vacation of each air cooling blower fan left side
If the side be left side) passageway on, test point 10～18 is distributed on the passageway on the right side of each air cooling blower fan, and test point
1～9 and test point 10～18 it is symmetrical, the particular location of each test point such as arrives distance of frame edge etc. can basis
Depending on being actually needed.
For above-mentioned each test point, ODS technologies can be utilized respectively, obtain the test point on M predetermined direction
Vibration values.
ODS technologies are a kind of experimental simulation analysis methods being analyzed to the vibration characteristics under structure running status, tool
Body is embodied as prior art.
The concrete value of above-mentioned M equally can be decided according to the actual requirements, preferably, can be 3, accordingly, M predetermined
Direction can be：Horizontal direction, vertical direction and axial direction.
Afterwards, you can each vibration values of each test point to getting carry out comprehensive analysis, to obtain the prison of the row framework
Result is surveyed, is implemented and is similarly prior art.
In a word, using scheme of the present invention, it is to avoid problems of the prior art, so as to improve monitoring knot
The reliability of fruit, and, scheme of the present invention is convenient to carry out, is easy to popularize and promotes.
In sum, presently preferred embodiments of the present invention is these are only, is not intended to limit protection scope of the present invention.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in this
Within the protection domain of invention.
Claims (3)
1. a kind of Air-Cooling Island frame vibration monitoring method, it is characterised in that include：
For each column framework, N number of test point is selected on the row framework respectively, N is the positive integer more than 1；
Using operation deformation ODS technologies, vibration values of each test point on M predetermined direction, M are obtained respectively
It is the positive integer more than 1；
Each vibration values to getting carry out comprehensive analysis, obtain the monitoring result of the row framework.
2. method according to claim 1, it is characterised in that
The value of the M is 3；
The M predetermined direction includes：Horizontal direction, vertical direction and axial direction.
3. method according to claim 1 and 2, it is characterised in that
The N is even number；
If with the row air cooling blower fan on the row framework as line of demarcation, N/2 test point is located on the left of line of demarcation
On passageway, in addition N/2 test point is located on the passageway on the right side of line of demarcation, and the test point of both sides is symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658155.9A CN106568582A (en) | 2015-10-12 | 2015-10-12 | Air cooling island framework vibration monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658155.9A CN106568582A (en) | 2015-10-12 | 2015-10-12 | Air cooling island framework vibration monitoring method |
Publications (1)
| Publication Number | Publication Date |
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| CN106568582A true CN106568582A (en) | 2017-04-19 |
Family
ID=58508617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510658155.9A Pending CN106568582A (en) | 2015-10-12 | 2015-10-12 | Air cooling island framework vibration monitoring method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203454837U (en) * | 2013-06-29 | 2014-02-26 | 内蒙古电力勘测设计院 | Direct air cooling vibration on-line monitor system |
| CN104019952A (en) * | 2014-05-28 | 2014-09-03 | 国网上海市电力公司 | Vibration detecting method for reactor fault diagnosis |
| CN104359694A (en) * | 2014-11-06 | 2015-02-18 | 北京强度环境研究所 | Method for testing system-level trial run operation modes and operation deformation of liquid rockets |
-
2015
- 2015-10-12 CN CN201510658155.9A patent/CN106568582A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203454837U (en) * | 2013-06-29 | 2014-02-26 | 内蒙古电力勘测设计院 | Direct air cooling vibration on-line monitor system |
| CN104019952A (en) * | 2014-05-28 | 2014-09-03 | 国网上海市电力公司 | Vibration detecting method for reactor fault diagnosis |
| CN104359694A (en) * | 2014-11-06 | 2015-02-18 | 北京强度环境研究所 | Method for testing system-level trial run operation modes and operation deformation of liquid rockets |
Non-Patent Citations (1)
| Title |
|---|
| 郑伟娟 等: ""应用振动ODS方法分析汽车动力总成振动"", 《汽车技术》 * |
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Application publication date: 20170419 |