CN206668474U - The anti-strong wind device of wind power tower - Google Patents
The anti-strong wind device of wind power tower Download PDFInfo
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- CN206668474U CN206668474U CN201720262562.2U CN201720262562U CN206668474U CN 206668474 U CN206668474 U CN 206668474U CN 201720262562 U CN201720262562 U CN 201720262562U CN 206668474 U CN206668474 U CN 206668474U
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- drag
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- wind
- pylon main
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- 238000007665 sagging Methods 0.000 claims abstract description 7
- 230000008602 contraction Effects 0.000 claims abstract description 5
- 239000011888 foil Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 230000002459 sustained effect Effects 0.000 claims description 3
- 239000004567 concrete Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000029777 axis specification Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
Abstract
It the utility model is related to the anti-strong wind device of wind power tower, wind-driven generator including pylon main body and installed in the pylon main body top, the pylon main body is provided with more drag-lines, one end of wherein every drag-line is fixed on the top of the pylon main body, the other end of every drag-line is connected with toothed-wheel gear, the toothed-wheel gear is connected with control system, the contraction or expansion of the toothed-wheel gear control drag-line are controlled by the control system, when the drag-line shrinks, the drag-line is sagging along the pylon main body and packs up, during the drag-line expansion, the blade of the drag-line through the wind-driven generator scans scope, and the bottom of the pylon main body is provided with multiple strain gauge means corresponding with the drag-line quantity.The utility model makes high wind be transferred in drag-line the overwhelming majority in the horizontal force of wind power tower, considerably reduces the stress level and collapse probability of pylon.
Description
Technical field
The utility model belongs to the technical field of wind power tower, refers in particular to the anti-strong wind device of wind power tower.
Background technology
Wind power generation stepped to belong to tower mast structure, with the development of wind generating technology, wind blade is increasing, blower fan tower
The height of frame also increases, and the cost of corresponding Wind turbines is also increasing.Therefore, in order to reduce large-scale wind driven generator year
Equal cost of electricity-generating, the projected life of wind-power electricity generation start to increase substantially.In the military service of wind-driven generator, corresponding to wind load
Wind speed can be divided into normal wind speed and extreme wind speeds.In normal wind speed, rotated by Wind power propelling fan blade and realize what is generated electricity；
Generally, wind power tower corresponding wind speed within most times is normal wind speed, or less than normal wind speed；And in pole
Hold under wind speed, damaged to protect electrical equipment driving will not occur, fan blade will stop operating, although extreme wind speeds
The probability very little of generation, the duration is very short, but the load of the blower fan pylon and structure design are necessarily required to by extreme wind speeds
Calculate, thereby may be ensured that the safety of wind power tower.
It is existing in order to ensure the safety of wind power tower under extreme wind speeds, such as Chinese invention patent（CN105179183A）It is open
A kind of prestressed concrete wind power tower system and its construction method, the upper end connection wind-driven generator of its pylon main body, institute
State pylon main body to be socketed to form by the concrete tower positioned at bottom and superposed steel tower segment, the pylon main body is by advance should
Power drag-line drawknot is fixed；The prestressed cable has the vertical prestressing beam being arranged on inside the concrete tower of bottom and is arranged on
Oblique prestressed cable outside the concrete tower of bottom, the upper end of vertical prestressing beam and oblique prestressed cable anchor with
On the steel tower segment flange in the bottom of top, the lower end of oblique prestressed cable is fixedly connected with anti_floating foundation, under vertical prestressing beam
End and the base anchor connection of concrete tower.In above-mentioned wind power tower, although can be played by drag-line to pylon main body
Supporting role, reduce the stress performance of pylon structure to a certain extent, but in order to avoid blade and the drag-line bump against,
The position that the vertical prestressing beam and oblique prestressed cable are fixed in pylon main body has to send out less than the wind-force
The position of motor, i.e. drag-line hanging point must be very low, therefore when high wind is to attack, support effect of the described drag-line to pylon main body
Limited, when causing to run into extreme wind still there is the risk collapsed in the pylon main body.
Utility model content
Therefore, technical problem to be solved in the utility model is to overcome drag-line described in prior art in pylon main body
Hanging point position it is too low cause to pylon support effect difference the problem of so as to provide one kind can increase substantially drag-line to pylon
The anti-strong wind device of the wind power tower of supporting role.
In order to solve the above technical problems, a kind of anti-strong wind device of wind power tower of the present utility model, including pylon main body
And the wind-driven generator installed in the pylon main body top, the pylon main body is provided with more drag-lines, wherein every
One end of drag-line is fixed on the top of the pylon main body, and the other end of every drag-line is connected with toothed-wheel gear, the tooth
Wheel linkage is connected with control system, and the receipts of the toothed-wheel gear drive drag-line are controlled by the control system
Contracting or expansion, when the drag-line shrinks, the drag-line is sagging along the pylon main body and packs up, when the drag-line deploys, institute
The blade for stating drag-line through the wind-driven generator scans scope, and the bottom of the pylon main body is provided with and the drag-line number
Multiple strain gauge means corresponding to amount.
In one embodiment of the present utility model, one end of the more drag-lines is fixed on the pylon main body top
On sustained height.
In one embodiment of the present utility model, the quantity of the drag-line is at least three, and is evenly distributed on described
Around pylon main body.
In one embodiment of the present utility model, the drag-line shrink when including the top by the pylon main body from
By the second segment for hanging down to the first paragraph on ground and being connected with the toothed-wheel gear.
In one embodiment of the present utility model, the tie point of the drag-line first paragraph and second segment is fixed on earth anchor
On, and the earth anchor is located at the root of the pylon main body.
In one embodiment of the present utility model, the pylon main body is provided with multiple for tying up institute along short transverse
State the storage ring of drag-line.
In one embodiment of the present utility model, the strain gauge means are located at by the drag-line axis after deploying and institute
State in the plane of pylon main body axis determination and the intersection of the pylon body surfaces.
In one embodiment of the present utility model, the strain gauge means are foil gauges.
In one embodiment of the present utility model, the toothed-wheel gear includes hoist engine.
Above-mentioned technical proposal of the present utility model has advantages below compared with prior art：
The anti-strong wind device of wind power tower described in the utility model, under normal wind regime, drag-line is to pack up hang,
Freely rotating for fan blade is not influenceed；When high wind is to attack, the blade of wind-driven generator stops operating, toothed-wheel gear
Rotate and drive the drag-line on wind power tower top to start to spread out, the strain gauge means moment monitors pylon monitoring point corresponding to each drag-line
Adaptability to changes, to adjust the output of the strain gauge means, ensure the strain difference of each monitoring point in the range of permissible value,
So as to ensure that when drag-line deploys, wind power tower is kept vertical state, make level of the high wind to wind power tower
The overwhelming majority in power is transferred in drag-line, considerably reduces the stress level and collapse probability of pylon.
Brief description of the drawings
In order that content of the present utility model is more likely to be clearly understood, below according to specific implementation of the present utility model
Example and with reference to accompanying drawing, is described in further detail to the utility model, wherein
Fig. 1 is the schematic diagram when drag-line of wind power tower described in the utility model shrinks；
Schematic diagram when Fig. 2 is the drag-line expansion of wind power tower described in the utility model；
Top view when Fig. 3 is the drag-line expansion of wind power tower described in the utility model.
Embodiment
It refer to shown in Fig. 1 and Fig. 2 and Fig. 3, the present embodiment provides a kind of anti-strong wind device of wind power tower, including tower
Frame body 10 and the wind-driven generator 20 installed in the top of pylon main body 10, the pylon main body 10 is provided with more
Drag-line 30, wherein one end of every drag-line 30 is fixed on the top of the pylon main body 10, the other end and tooth of every drag-line 30
Take turns linkage 40 to be connected, the toothed-wheel gear 40 is connected with control system, and the tooth is controlled by the control system
Wheel linkage 40 drives the contraction or expansion of the drag-line 30, and when the drag-line 30 shrinks, the drag-line 30 is along the tower
Frame body 10 is sagging and packs up, and when the drag-line 30 deploys, the blade of the drag-line 30 through the wind-driven generator 20 scans
Scope, and the bottom of the pylon main body 10 is provided with multiple strain gauge means 50 corresponding with the quantity of drag-line 30.
Above-mentioned is core technology scheme described in the utility model, and the anti-high wind of wind power tower described in the utility model fills
Put, including pylon main body 10 and the wind-driven generator 20 installed in the top of pylon main body 10, along the pylon main body 10
More drag-lines 30 are provided with, wherein one end of every drag-line 30 is fixed on the top of the pylon main body 10, so as to be advantageous to pair
The support of the pylon main body 10；The other end of every drag-line 30 is connected with toothed-wheel gear 40, the toothed-wheel gear
40 are connected with control system, by the control system control the toothed-wheel gear 40 drive the drag-line 30 contraction or
Person deploys, and specifically, the control system controls the toothed-wheel gear 40 to drive the drag-line in wind speed under normal circumstances
30 shrink, and when the drag-line 30 shrinks, the drag-line 30 is sagging along the pylon main body 10 and packs up, and avoids the wind-power electricity generation
The blade of machine 20 collides with the drag-line 30, so as to not influence the normal power generation of the wind-driven generator 20；If high wind comes
Attack, the blade of the wind-driven generator 20 stops operating, the control system control the toothed-wheel gear 40 to rotate so as to
The drag-line 30 for tying up to the top of pylon main body 10 is driven to deploy, when the drag-line 30 deploys, the drag-line 30 passes through the wind
The blade of power generator 20 scans scope, so as to be advantageous to the support to the pylon main body 10；The bottom of the pylon main body 10
End is provided with multiple strain gauge means 50 corresponding with the quantity of drag-line 30, is monitored respectively by the strain gauge means 50
Corresponding to drag-line 30 in the pylon main body 10 monitoring point adaptability to changes, and calculate the drag-line 30 accordingly to the wind power tower
Caused tilting moment, ensure that the drag-line 30 each drag-line horizontal resultant during expansion is zero, so as to avoid occurring to institute
State tilting moment caused by pylon main body 10；Furthermore after the drag-line 30 is fully deployed, horizontal force of the high wind to wind power tower
In the overwhelming majority be transferred in drag-line, so as to considerably reduce, the stress of the wind power tower is horizontal and collapse probability；
In addition, the utility model is easy for installation, low cost, therefore can be used for reinforcing existing blower fan apparatus.
It is described in order to ensure to share the wind load that the wind power tower born using the drag-line 30 under high wind state
One end of more drag-lines 30 is fixed on the sustained height on the top of pylon main body 10, so as to balance the wind-power electricity generation
Unit 20 reduces the overturning moment load that the bottom of pylon main body 10 is born to moment of flexure caused by the pylon main body 10.
The quantity of the drag-line 30 is at least three, and is evenly distributed on around the pylon main body 10, so as to favourable
In the wind-driven generator 20 is disperseed away to huge lateral load load caused by the pylon main body 10, reduce the tower
The overturning moment load that the bottom of frame body 10 is born；When the drag-line 30 shrinks, as shown in figure 1, the drag-line 30 is included by institute
The second segment that the top of pylon main body 10 freely hangs down to the first paragraph on ground and is connected with the toothed-wheel gear 40 is stated,
And the tie point of the first paragraph of drag-line 30 and second segment is fixed on earth anchor, and the earth anchor is located at the pylon main body 10
Root, so as to ensure in the case of normal wind speed, avoid influenceing the normal power generation of the wind-driven generator 20；In addition, the tower
Frame body 10 is provided with multiple storage rings for being used to tie up the drag-line 30 along short transverse, when the drag-line 30 is in sagging type
During state, the drag-line 30 is contained ring and constrained, and prevents the drag-line 30 from arbitrarily waving, and avoids influenceing the wind-driven generator 20
The rotation of blade；And in the case of extreme wind speeds, as shown in Fig. 2 the drag-line 30 is in deployed condition, the drag-line 30 and institute
It is acute angle to state the angle formed between pylon main body 10, and now the blade of the wind-driven generator 20 is when the drag-line 30 deploys
Stop operating, so as to which the wind load that the pylon main body 10 born can be shared using the drag-line 30.
In the present embodiment, the toothed-wheel gear 40 is hoist engine, in the case of extreme wind speeds, the hoist engine according to
Control centre instructs, and tightens up the drag-line 30, the drag-line 30 is shared the wind load that the pylon main body 10 is born；Institute
After stating wind speed recovery normally, the drag-line 30 is discharged.
In order to ensure that the strain gauge means 50 measure the accuracy that the pylon main body 10 strains, the strain measurement
Device 50 is located at by the plane that the axis of drag-line 30 after deploying and the axis of pylon main body 10 determine and the pylon main body 10
On the intersection on surface, and as far as possible close to the root of the pylon main body 10.In addition, surveyed according to the strain gauge means 50
The strain value of amount, the drag-line 30 can be calculated to tilting moment caused by the pylon main body 10, so as to ensure each drag-line
Tilting moment and/or horizontal force sum to pylon main body 10 is zero.Specifically, to set three in the pylon main body 10
Exemplified by root drag-line, the method for calculating the tilting moment of the drag-line 30 is： M1=（ε1-ε）EW, ε=ε 1+ ε 2+ ε 3, wherein, ε 1, ε
2nd, ε 3 is respectively the strain that foil gauge corresponding to three drag-lines measures, and E is the modulus of elasticity of component, and W is the pylon main body 10
Resistance moment, its numerical value can be inquired about inside the tower design handbook.Therefore measured by the strain gauge means 50
The adaptability to changes of the pylon main body 10, so as to which toothed-wheel gear 40 described in reasonable arrangement is handled, by adjusting the drawing
The stressing conditions of rope 30 avoid the wind power tower from being collapsed because Cable forces are uneven.
In the present embodiment, the strain gauge means 50 are foil gauges, and the foil gauge can be affixed directly to the tower
On frame body 10.
To sum up, technical scheme described in the utility model has advantages below：
1. the anti-strong wind device of wind power tower described in the utility model, including pylon main body and installed in the pylon master
The wind-driven generator on body top, the pylon main body is provided with more drag-lines, wherein one end of every drag-line be fixed on it is described
The top of pylon main body, so as to be advantageous to the support to the pylon main body；The other end and toothed-wheel gear of every drag-line
It is connected, the toothed-wheel gear is connected with control system, controls the toothed-wheel gear to drive by the control system
The contraction or expansion of the drag-line, specifically, the toothed-wheel gear controls the drag-line to receive in wind speed under normal circumstances
Contracting, when the drag-line shrinks, the drag-line is sagging along the pylon main body and packs up, avoid the blade of the wind-driven generator with
Drag-line collides, so as to not influence the normal power generation of the wind-driven generator；If high wind is attacked, the leaf of the wind-driven generator
Piece stops operating, and the control system controls the toothed-wheel gear to rotate and ties up to the pylon main body top so as to drive
Drag-line deploys, and during drag-line expansion, the blade of the drag-line through the wind-driven generator scans scope, so as to be advantageous to pair
The support of the pylon main body, the bottom of the pylon main body are provided with multiple strain measurement dresses corresponding with the drag-line quantity
Put, the adaptability to changes of monitoring point in the pylon main body corresponding to each drag-line is monitored by the strain gauge means, and count accordingly
The drag-line is calculated to tilting moment caused by the wind power tower, ensures the drag-line each drag-line horizontal resultant during expansion
It is zero, so as to avoid occurring to tilting moment caused by the pylon main body；Furthermore after the drag-line is fully deployed, high wind
The overwhelming majority in the horizontal force of wind power tower is transferred in drag-line, so as to considerably reduce the wind power tower by
Power level and collapse probability.
2. the anti-strong wind device of wind power tower described in the utility model, in order to ensure described in the strain gauge means measurement
The accuracy of pylon main body strain, the strain gauge means are located at by the drag-line axis after deploying and the pylon main body axis
On the intersection of the plane of determination and the pylon body surfaces, and as far as possible close to the root of the pylon main body.Pass through institute
The adaptability to changes of the pylon main body can be measured by stating strain gauge means, so that described in reasonable arrangement at toothed-wheel gear
Reason, the stressing conditions by adjusting the drag-line avoid the wind power tower because of Cable forces inequality to collapse.
Obviously, above-described embodiment is only intended to clearly illustrate example, not to the restriction of embodiment.For
For those of ordinary skill in the art, other multi-form changes can also be made on the basis of the above description or are become
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change or change thus extended out
Among the dynamic protection domain created still in the utility model.
Claims (9)
1. a kind of anti-strong wind device of wind power tower, including pylon main body and the wind-force installed in the pylon main body top are sent out
Motor, it is characterised in that：The pylon main body is provided with more drag-lines, wherein one end of every drag-line is fixed on the pylon
The top of main body, the other end of every drag-line are connected with toothed-wheel gear, and the toothed-wheel gear is connected with control system,
The contraction or expansion of the toothed-wheel gear drive drag-line are controlled by the control system, the drag-line shrinks
When, the drag-line is sagging along the pylon main body and packs up, and when the drag-line deploys, the drag-line passes through the wind-driven generator
Blade scan scope, and the bottom of the pylon main body is provided with multiple strain measurement dresses corresponding with the drag-line quantity
Put.
2. the anti-strong wind device of wind power tower according to claim 1, it is characterised in that：One end of the more drag-lines is consolidated
It is scheduled on the sustained height on the pylon main body top.
3. the anti-strong wind device of wind power tower according to claim 2, it is characterised in that：The quantity of the drag-line is at least
Three, and be evenly distributed on around the pylon main body.
4. according to the anti-strong wind device of wind power tower any one of in claim 1-3, it is characterised in that：The drag-line
Shrink when including freely hung down to by the top of the pylon main body ground first paragraph and with the toothed-wheel gear
Connected second segment.
5. the anti-strong wind device of wind power tower according to claim 4, it is characterised in that：The drag-line first paragraph and second
The tie point of section is fixed on earth anchor, and the earth anchor is located at the root of the pylon main body.
6. the anti-strong wind device of wind power tower according to claim 1, it is characterised in that：The pylon main body is along height side
Multiple it is used to tie up the storage rings of the drag-line to being provided with.
7. the anti-strong wind device of wind power tower according to claim 1, it is characterised in that：The strain gauge means are located at
In the plane and the intersection of the pylon body surfaces determined by the drag-line axis after deploying and the pylon main body axis.
8. the anti-strong wind device of the wind power tower according to claim 1 or 7, it is characterised in that：The strain gauge means
It is foil gauge.
9. the anti-strong wind device of wind power tower according to claim 1, it is characterised in that：The toothed-wheel gear includes
Hoist engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720262562.2U CN206668474U (en) | 2017-03-17 | 2017-03-17 | The anti-strong wind device of wind power tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720262562.2U CN206668474U (en) | 2017-03-17 | 2017-03-17 | The anti-strong wind device of wind power tower |
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| Publication Number | Publication Date |
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| CN206668474U true CN206668474U (en) | 2017-11-24 |
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ID=60377754
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| CN201720262562.2U Active CN206668474U (en) | 2017-03-17 | 2017-03-17 | The anti-strong wind device of wind power tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968893A (en) * | 2017-03-17 | 2017-07-21 | 中国电力科学研究院 | The anti-strong wind device of wind power tower |
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2017
- 2017-03-17 CN CN201720262562.2U patent/CN206668474U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968893A (en) * | 2017-03-17 | 2017-07-21 | 中国电力科学研究院 | The anti-strong wind device of wind power tower |
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