CN203925890U - A kind of blade with loop-type ground wire - Google Patents
A kind of blade with loop-type ground wire Download PDFInfo
- Publication number
- CN203925890U CN203925890U CN201420365648.4U CN201420365648U CN203925890U CN 203925890 U CN203925890 U CN 203925890U CN 201420365648 U CN201420365648 U CN 201420365648U CN 203925890 U CN203925890 U CN 203925890U
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- China
- Prior art keywords
- blade
- ground wire
- loop
- arrester
- type
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- 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.)
- Expired - Fee Related
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- Y02E10/722—
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses a kind of blade with loop-type ground wire, comprise blade, ground wire and arrester, described ground wire is at least two, all be connected with described arrester, the blade root of described many ground wires from described arrester to blade mutually side by side, independently arranges, and at the blade root place of blade, is removably joined together to form loop.The utility model is by arranging many ground wires, make the lightning-arrest effect of unit better, simultaneously owing to having adopted the lightning-arrest circuit with loop-type, significantly simplified the regularly testing to blade lightning-protection circuit, reduce labor intensity and testing cost, improved Security.
Description
Technical field
The utility model relates to wind turbine technical group field, particularly relates to a kind of blade with loop-type ground wire.
Background technique
Current wind generator set blade only has a ground wire, only possesses the effect of single reception and conduction thunder and lightning.Once the phenomenons such as ground wire is damaged, disconnection, virtual connection, resistance increase are difficult to be found, and cause great thunderbolt hidden danger to unit.For getting rid of this hidden danger, need regularly to blade lightning-protection line, to detect, testing process needs professional workforce to do outdoor high-lift operation by crane, climbing tower machine etc. just to complete, not only take time and effort, cost is huge, and the safety in work can not be ignored more.Task difficulty for offshore wind turbine strengthens especially.
As can be seen here,, obviously there are a lot of defects, and be urgently further improved in the above-mentioned existing blade structure that only has a ground wire.How to found a kind of new blade of discovery ground wire problem that can be convenient, safe, becoming the current industry utmost point needs improved target.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of new blade of detection ground wire problem that can be convenient, safe, overcomes the existing deficiency of only having the blade structure of a ground wire.
For solving the problems of the technologies described above, the utility model provides a kind of blade with loop-type ground wire, comprise blade, ground wire and arrester, described ground wire is at least two, all be connected with described arrester, the blade root of described many ground wires from described arrester to blade mutually side by side, independently arranges, and at the blade root place of blade, is removably joined together to form loop.
Further improve, described arrester is positioned at the blade tip place of described blade.
Further improve, described ground wire is the built-in ground wire that is placed in described blade.
Further improve, described ground wire has at most a ground wire to be fixedly connected with arrester at described arrester place, all the other ground wires with arrester for being removably connected.
Further improve, described ground wire and described arrester removably connect by galvanized bolt.
Further improve, described ground wire is when work, and at described blade root, place is connected in parallel by bolt; When measuring, the bolt that is connected in parallel described in taking apart detects the loop of described ground wire.
Further improve, also comprise sensor, this sensor is connected on the loop of described ground wire, transmits break-make, virtual connection and the resistance variations signal in ground wire loop.
Further improve, also comprise the alarming relay being connected with described sensor.
Further improve, described ground wire is two.
Owing to adopting technique scheme, the utility model at least has the following advantages:
(1) the utility model, owing to having adopted the lightning-arrest circuit with loop-type, when the regular detection to blade lightning-protection circuit, as long as take the bolt of blade root apart, is surveyed its loop resistance with common multimeter, just can judge the working condition of ground wire.Only, when having measured problem, just need to make a definite diagnosis by conventional method.Greatly reduce like this labor intensity and testing cost, operator's safety is also protected simultaneously.
(2) in the utility model, ground wire arranges many, makes the lightning-arrest property reliable for effect of unit higher, and pinpointing the problems of energy more convenient and quicker, reduces the number of times of high-lift operation simultaneously, improves Security.
(3) on the loop that the utility model utilization forms at ground wire, install sensor additional, monitor in real time the ground wire working condition of blade, make hidden danger discovery early.
Accompanying drawing explanation
Above-mentioned is only the general introduction of technical solutions of the utility model, and in order to better understand technological means of the present utility model, below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Fig. 1 is the structural representation that the utlity model has built-in ground wire blade.
Embodiment
Shown in accompanying drawing 1, it is example that the two built-in ground wires of take form a loop, and the utility model is described in further detail.
A kind of blade with loop-type ground wire of the utility model, comprises blade, two built-in ground wires 1,2 and arrester 3.Arrester 3 is positioned at blade tip place, and two built-in ground wires 1 are the down lead being connected with arrester 3 with 2, and two ground wires 1 can be with arrester 3 for being fixedly connected with 2, and arrester 3 is as the double starting point of drawing thunder of mid point in loop.In order to be conducive to dispatch from the factory when test convenient and making a definite diagnosis while being conducive to go wrong of blade in the future, it is any bar circuit detection that goes wrong, article two, ground wire also can be connected by galvanized bolt is dismountable with arrester 3, or wherein a ground wire is dismountable connection with arrester 3, then two built-in ground wires 1 with 2 from blade tip to blade root parallel laid, separate, become state arranged side by side, the circuit that goes and return is independent of each other, during to blade root, by bolt, be shorted together and form loop again, bolt joint is the short circuit point 4 of blade root, as starting point and the terminal in loop.In to the test of the built-in lightning-arrest circuit of blade, as long as take the bolt that short circuit is put 4 places apart, use multimeter to survey the loop resistance of two circuit end points, just can judge the situation of the built-in lightning-arrest circuit of blade.
In addition, the utlity model has the blade of loop-type ground wire, can also install sensor additional, sensor is connected on the loop of ground wire, transmit the signals such as ground wire break-make, virtual connection, resistance increase, when signal reaches early warning value, can realize alarm equipment alarm by the alarming relay action being connected with sensor, be beneficial to the working condition of real-time monitoring ground wire.
In the utility model, built-in ground wire can arrange many, when ground wire is set more than three and three, and three above lightning-arrest circuit parallel operations article three,, make lightning-arrest property reliable for effect higher, simultaneously by using multimeter to test the loop resistance of every two circuit end points, can directly judge at blade root is that opening circuit appears in which bar ground wire, further conveniently pinpoints the problems, and reduces the number of times of high-lift operation.
Certainly, in the utility model, ground wire can be embedded in the external layer of blade equally, as long as more than two and two ground wires adopt loop-type setting can reach goal of the invention of the present utility model.In addition, the arrester 3 of many ground wires of short circuit also can be placed in other place of blade.
In sum, a kind of blade with loop-type ground wire of the utility model, can realize following functions:
1, the utlity model has the blade of loop-type ground wire, many (two and more than) lightning-arrest circuit is loop-type at blade tip and blade root place short circuit, in regularly to the detection of blade lightning-protection circuit, as long as take the bolt of blade root apart, with common multimeter, survey its loop resistance, just can judge the working condition of ground wire.Realized like this and by original every Fans, all must take high-altitude to hang people to fulfil assignment, be simplified in wheel hub and detect and just can pinpoint the problems in time by common multimeter, only, after having found problem, just need to hang people's operation with traditional high-altitude and make a definite diagnosis and repair.For the offshore wind turbine that is difficult to outdoor high-lift operation, ideal is extremely especially.
2, the utlity model has the blade of loop-type ground wire, in the loop that can form at ground wire, install sensor additional, the problem that blade lightning-protection circuit is occurred is sent alarm signal, and the working condition of ground wire is realized to monitoring in real time, allow operator on duty note, the machine of going up is if desired measured, is ascertained the reason.
3, the utlity model has the blade of loop-type ground wire, ground wire arranges many, and many lightning-arrest circuit parallel operations can make lightning-arrest property reliable for effect higher, more convenient the pinpointing the problems of energy simultaneously, and the number of times of minimizing high-lift operation, improves Security.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection domain of the present utility model.
Claims (9)
1. a blade with loop-type ground wire, comprise blade, ground wire and arrester, it is characterized in that, described ground wire is at least two, all be connected with described arrester, the blade root of described many ground wires from described arrester to blade mutually side by side, independently arranges, and at the blade root place of blade, is removably joined together to form loop.
2. the blade with loop-type ground wire according to claim 1, is characterized in that, described arrester is positioned at the blade tip place of described blade.
3. the blade with loop-type ground wire according to claim 1, is characterized in that, described ground wire is the built-in ground wire that is placed in described blade.
4. the blade with loop-type ground wire according to claim 1, is characterized in that, described ground wire has at most a ground wire to be fixedly connected with arrester at described arrester place, and all the other ground wires are dismountable connection with arrester.
5. the blade with loop-type ground wire according to claim 4, is characterized in that, described ground wire and described arrester removably connect by galvanized bolt.
6. the blade with loop-type ground wire according to claim 1, is characterized in that, described ground wire is when work, and at described blade root, place is connected in parallel by bolt; When measuring, the bolt that is connected in parallel described in taking apart detects the loop of described ground wire.
7. according to the blade with loop-type ground wire described in claim 1 to 6 any one, it is characterized in that, also comprise sensor, this sensor is connected on the loop of described ground wire, transmits break-make, virtual connection and the resistance variations signal in ground wire loop.
8. the blade with loop-type ground wire according to claim 7, is characterized in that, also comprises the alarming relay being connected with described sensor.
9. according to the blade with loop-type ground wire described in claim 1 to 6 any one, it is characterized in that, described ground wire is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365648.4U CN203925890U (en) | 2014-07-03 | 2014-07-03 | A kind of blade with loop-type ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365648.4U CN203925890U (en) | 2014-07-03 | 2014-07-03 | A kind of blade with loop-type ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925890U true CN203925890U (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420365648.4U Expired - Fee Related CN203925890U (en) | 2014-07-03 | 2014-07-03 | A kind of blade with loop-type ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925890U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500352A (en) * | 2014-12-19 | 2015-04-08 | 北京天源科创风电技术有限责任公司 | Blade of wind turbine generator set |
| CN105545615A (en) * | 2015-12-22 | 2016-05-04 | 北京金风科创风电设备有限公司 | Lightning protection structure of wind turbine generator blade and wind driven generator blade |
| CN107989828A (en) * | 2018-01-08 | 2018-05-04 | 大连理工大学 | A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device |
| CN112302884A (en) * | 2019-08-01 | 2021-02-02 | 中材科技风电叶片股份有限公司 | Wind turbine and blade thereof, resistance detection method, storage medium and electronic equipment |
-
2014
- 2014-07-03 CN CN201420365648.4U patent/CN203925890U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500352A (en) * | 2014-12-19 | 2015-04-08 | 北京天源科创风电技术有限责任公司 | Blade of wind turbine generator set |
| CN105545615A (en) * | 2015-12-22 | 2016-05-04 | 北京金风科创风电设备有限公司 | Lightning protection structure of wind turbine generator blade and wind driven generator blade |
| CN105545615B (en) * | 2015-12-22 | 2019-02-15 | 北京金风科创风电设备有限公司 | Lightning protection structure of wind turbine generator blade and wind driven generator blade |
| CN107989828A (en) * | 2018-01-08 | 2018-05-04 | 大连理工大学 | A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device |
| CN107989828B (en) * | 2018-01-08 | 2019-09-27 | 大连理工大学 | A kind of safety device winged suitable for the anti-blade throwing of trunnion axis blower |
| CN112302884A (en) * | 2019-08-01 | 2021-02-02 | 中材科技风电叶片股份有限公司 | Wind turbine and blade thereof, resistance detection method, storage medium and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170703 |