CN204239161U - A kind of wind generator set blade icing detection device - Google Patents
A kind of wind generator set blade icing detection device Download PDFInfo
- Publication number
- CN204239161U CN204239161U CN201420704292.2U CN201420704292U CN204239161U CN 204239161 U CN204239161 U CN 204239161U CN 201420704292 U CN201420704292 U CN 201420704292U CN 204239161 U CN204239161 U CN 204239161U
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- pitch variable
- variable bearings
- displacement
- wind
- outer ring
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Abstract
The utility model discloses a kind of wind generator set blade icing detection device, it comprises displacement transducer, institute's displacement sensors is arranged at the position near pitch variable bearings in wheel hub, displacement transducer is for measuring pitch variable bearings inner ring and outer ring relative displacement, the signal that displacement transducer exports inputs to wind-driven generator master controller, during wind power generating set debugging, distance between the bearing inner race that displacement transducer is measured and outer ring is as initial value, when restarting, when distance between pitch variable bearings inner ring and outer ring and the deviation of initial value exceed setting value, then wind-driven generator master controller sends icing alarm, system stops starting.By the change in displacement of measurement pitch variable bearings inner ring and outer ring, the utility model is owing to judging whether the weight of blade changes, thus judge blade whether icing, thus before fan starting, detect the icing situation of blade fast, without the need to maintenance man's Site Detection on the spot.
Description
Technical field
The utility model relates to wind-driven generator field, particularly relates to a kind of wind generator set blade icing detection device.
Background technique
At present; wind generator set blade whether icing; be difficult to be detected by effective means; be generally and send attendant to observe blower fan on the spot, this kind of method has following shortcoming: the blower fan multidigit of icing is in mountain area in winter, now deposite snow; attendant has gone up a hill very large potential safety hazard; when weather is more severe, attendant cannot go up a hill and carry out field observation, thus by forced-stopping machine.In addition, when again starting shooting, must carry out detecting by platform to blower fan, because blower fan distribution comparatively disperses, carry out field observation to an all blower fan of wind field, the used time for a long time, have lost generated energy.
Model utility content
The purpose of this utility model is to overcome above defect, provides a kind of wind generator set blade icing detection device fast and without the need to detecting on the spot.
The technical solution of the utility model is: a kind of wind generator set blade icing detection device, it comprises displacement transducer, institute's displacement sensors is arranged at the position near pitch variable bearings in wheel hub, for measuring pitch variable bearings inner ring and outer ring relative displacement, the signal that displacement transducer exports is delivered to wind-driven generator master controller, during wind power generating set debugging, distance between the bearing inner race that displacement transducer is measured and outer ring is as initial value, during startup, when distance between pitch variable bearings inner ring and outer ring and the deviation of initial value exceed setting value, then wind-driven generator master controller sends icing alarm, system stops starting.
The quantity of institute's displacement sensors is identical with the quantity of pitch variable bearings, and institute's displacement sensors independently measures single pitch variable bearings inner ring and outer ring relative displacement.
Advantageous Effects of the present utility model is, because the change in displacement by measuring pitch variable bearings inner ring and outer ring judges whether the weight of blade changes, thus judge blade whether icing, thus before fan starting, the icing situation of quick detection blade, without the need to maintenance man's Site Detection on the spot.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to accompanying drawing, a kind of wind generator set blade icing detection device, it comprises displacement transducer 5, the quantity of displacement transducer 5 is identical with the quantity of pitch variable bearings, institute's displacement sensors 5 is arranged at the position near pitch variable bearings in wheel hub 4 by mounting frame for sensor 6, for measuring the relative displacement of pitch variable bearings inner ring 3 and pitch variable bearings outer ring 2, the signal that displacement transducer 5 exports is delivered to wind-driven generator master controller, during wind power generating set debugging, distance between the pitch variable bearings inner ring 3 that displacement transducer 5 is measured and pitch variable bearings outer ring 2 is as initial value, during startup, when distance between pitch variable bearings inner ring 3 and pitch variable bearings outer ring 2 and the deviation of initial value exceed setting value, then wind-driven generator master controller sends the alarm of blade 2 icing, system stops starting, institute's displacement sensors 5 independently measures the relative displacement of each pitch variable bearings inner ring 3 and pitch variable bearings outer ring 2.
Be more than a kind of mode of execution of the present utility model, a preferred demonstration example.The scope of the utility model application request protection has more than and is limited to described mode of execution.Allly all belong to protection domain of the present utility model with the technological scheme of the present embodiment equivalence.
Claims (2)
1. a wind generator set blade icing detection device, it is characterized in that, it comprises displacement transducer, institute's displacement sensors is arranged at the position near pitch variable bearings in wheel hub, displacement transducer is for measuring pitch variable bearings inner ring and outer ring relative displacement, the signal that displacement transducer exports inputs to wind-driven generator master controller, during wind power generating set debugging, distance between the bearing inner race that displacement transducer is measured and outer ring is as initial value, when restarting, when distance between pitch variable bearings inner ring and outer ring and the deviation of initial value exceed setting value, then wind-driven generator master controller sends icing alarm, system stops starting.
2. a kind of wind generator set blade icing detection device according to claim 1, it is characterized in that, the quantity of institute's displacement sensors is identical with the quantity of pitch variable bearings, and institute's displacement sensors independently measures single pitch variable bearings inner ring and outer ring relative displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704292.2U CN204239161U (en) | 2014-11-21 | 2014-11-21 | A kind of wind generator set blade icing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704292.2U CN204239161U (en) | 2014-11-21 | 2014-11-21 | A kind of wind generator set blade icing detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239161U true CN204239161U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420704292.2U Active CN204239161U (en) | 2014-11-21 | 2014-11-21 | A kind of wind generator set blade icing detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204239161U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036692A (en) * | 2015-07-15 | 2017-08-11 | 成都阜特科技股份有限公司 | A kind of wind generator set blade icing measuring method |
| CN109425300A (en) * | 2017-09-04 | 2019-03-05 | 中车株洲电力机车研究所有限公司 | The measuring device and measuring method of Wind turbines pitch variable bearings Internal and external cycle relative displacement |
-
2014
- 2014-11-21 CN CN201420704292.2U patent/CN204239161U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036692A (en) * | 2015-07-15 | 2017-08-11 | 成都阜特科技股份有限公司 | A kind of wind generator set blade icing measuring method |
| CN107036692B (en) * | 2015-07-15 | 2019-11-08 | 成都阜特科技股份有限公司 | A kind of wind generator set blade icing measuring method |
| CN109425300A (en) * | 2017-09-04 | 2019-03-05 | 中车株洲电力机车研究所有限公司 | The measuring device and measuring method of Wind turbines pitch variable bearings Internal and external cycle relative displacement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |