CN115846087A - Wind turbine blade spraying device - Google Patents
Wind turbine blade spraying device Download PDFInfo
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- CN115846087A CN115846087A CN202211626151.9A CN202211626151A CN115846087A CN 115846087 A CN115846087 A CN 115846087A CN 202211626151 A CN202211626151 A CN 202211626151A CN 115846087 A CN115846087 A CN 115846087A
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Abstract
The invention discloses a spraying device for a wind turbine blade, which is applied to spraying operation of the wind turbine blade and comprises a support general frame and a propulsion assembly, wherein two nozzle supporting arms are symmetrically arranged on the support general frame, each nozzle supporting arm is rotationally arranged on the support general frame, the two nozzle supporting arms are symmetrically arranged, a plurality of nozzles are distributed on the nozzle supporting arms in an array manner, and each nozzle is rotationally connected with the nozzle supporting arm; the support assembly is arranged on the propelling assembly through the telescopic component, and the nozzle support arm is arranged and the direction of the nozzle can be adjusted, so that the blades can be sprayed in all directions, and the spraying effect is improved.
Description
Technical Field
The invention relates to the technical field of fan blade deicing, in particular to a wind turbine blade spraying device.
Background
At present, the blade of the wind turbine is easy to be coated with ice in a low-temperature environment, the blade coated with ice loses the original aerodynamic characteristics, the aerodynamic noise and the blade load are increased, the power output of the wind turbine is reduced, and the safety problems that the blade of the wind turbine is broken, the wind turbine collapses, the blade of the wind turbine is coated with ice and is thrown away to hurt people and the like are seriously caused.
The current general wind turbine blade icing solving means comprises the following steps: "electric blanket" deicing, spray liquid deicing, hot blast deicing, ultrasonic deicing, mechanical deicing, infrared deicing, laser deicing, and the like.
When a wind turbine blade is frozen, the existing deicing technology is generally electric heating, hot blast and spraying of a deicing agent controlled by an unmanned aerial vehicle. Deicing in a heating mode generally has certain influence on the electric energy output value of a wind turbine, and meanwhile, the existing unmanned aerial vehicle controlled spraying deicing effect is poor, and accidents such as collision, loss, falling and the like are easy to happen in disordered high-altitude airflow. Therefore, the deicing mode is often poor, and the problem of icing in the rapid development of the current wind power generation industry is not solved sufficiently.
Disclosure of Invention
The invention aims to provide a wind turbine blade spraying device to solve the technical problems in the background technology.
The first aspect of the present invention provides a technical solution: a spraying device for a wind turbine blade is applied to spraying operation of the wind turbine blade and comprises a supporting main frame and a propelling assembly, wherein two nozzle supporting arms are symmetrically arranged on the supporting main frame, each nozzle supporting arm is rotationally arranged on the supporting main frame, the two nozzle supporting arms are symmetrically arranged, a plurality of nozzles are distributed on the nozzle supporting arms in an array mode, and each nozzle is rotationally connected with the nozzle supporting arm; the supporting general frame is arranged on the propelling assembly through a telescopic component.
And a first angle adjusting motor is arranged at the joint of each nozzle and the nozzle supporting arm.
And a second angle adjusting motor is arranged at the joint of each nozzle supporting arm and the supporting general frame.
Every the nozzle supporting arm all includes first connecting portion and second connecting portion, the one end of first connecting portion with it is connected to support the total frame, the other end of first connecting portion with the second connecting portion are connected.
An included angle α is formed at the joint of the first connecting part and the second connecting part, the length of the first connecting part is L1, the length of the second connecting part is L2, the number of nozzles on the first connecting part is N1, the number of nozzles on the second connecting part is N2, and L1: L2= 3; n1: N2= 2.
The spacing distance between two adjacent nozzles on the first connecting part is D1; the distance between two adjacent nozzles on the second connecting portion is D2, and D1: D2= 1.
The included angle alpha ranges from 105 degrees to 120 degrees; the range of the L1 is 1050mm-1650mm; the range of the L2 is 1575mm-2475mm; the range of D1 is 80mm-120mm; the range of D2 is 400mm-600mm.
And a connecting pipeline is arranged in the nozzle supporting arm.
The spraying device also comprises a coating supply box and a pipeline connecting part for connecting the nozzle and the coating supply box, wherein the pipeline connecting part comprises a first pipeline, and the first pipeline is used for connecting the air compression and coating supply box; and one end of the second pipeline is communicated with the first pipeline, the other end of the second pipeline is connected with the nozzle through a connecting pipeline in the nozzle supporting arm, and a flow distribution level is arranged at the joint of the second pipeline and the nozzle supporting arm.
The nozzle support arm is provided with a plurality of circumferential holes, the circumferential holes are 3/4 of the circumference, and the circle center of each circumferential hole is coincided with the rotation axis of the nozzle.
The invention provides a wind turbine blade spraying device through improvement, and compared with the prior art, the wind turbine blade spraying device has the following improvements and advantages:
the spray nozzles distributed in the array can better ensure the uniformity of the spraying effect;
the nozzle supporting arm carries out non-contact clamping on the blade, so that the nozzle arranged on the nozzle supporting arm can face one side of the windward side of the wind turbine blade, and the deicing operation of the wind turbine blade can be better carried out;
the nozzle is rotatably arranged on the nozzle supporting arm, so that the nozzle can adapt to the change of the chord length and the surface shape of the blade in the spraying operation process, each nozzle can be always aligned to the blade, and the efficient spraying operation on the blade is completed.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a top view of the present invention;
FIG. 2 is a schematic view of a first isometric configuration of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a schematic view of a nozzle support arm according to the present invention;
FIG. 5 is a schematic isometric view of the propulsion assembly-containing package of the present invention;
FIG. 6 is a second isometric view of the present invention;
FIG. 7 is a schematic isometric view of a pod-containing construction according to the present invention;
FIG. 8 is a schematic view of the connection structure of the pipes in the nozzle support arm according to the present invention;
FIG. 9 is an X-direction slice analysis of a third comparative example of the present invention;
FIG. 10 is a Z-direction slice analysis of the film thickness of a third comparative example in the present invention.
Detailed Description
The core of the invention is to provide a wind turbine blade spraying device to solve the problems mentioned in the background technology.
The present invention will be described in detail with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the descriptions of "first", "second", etc. used in the embodiments of the present invention are only for descriptive purposes, and should not be interpreted as indicating or implying any limitation to the number of technical features, and therefore, the features defined as "first", "second", etc. in the embodiments of the present invention may indicate that at least one of the defined technical features is included.
Technical solutions between the embodiments of the present invention described in the present specification may be combined with each other, but it is necessary for those skilled in the art to realize the technical solutions.
As shown in fig. 1 to 8, the invention relates to a wind turbine blade spraying device, which is applied to spraying operation of wind turbine blades, and comprises a support main frame 1 and a propulsion assembly 11, wherein two nozzle support arms 2 are symmetrically arranged on the support main frame 1, each nozzle support arm 2 is rotatably arranged on the support main frame 1, the two nozzle support arms 2 are symmetrically arranged, a plurality of nozzles 3 are distributed on the nozzle support arms 2 in an array manner, and each nozzle 3 is rotatably connected with the nozzle support arm 2; the supporting general frame 1 is arranged on the propelling assembly 1 through a telescopic component 12.
In one embodiment of the invention, the nozzles 3 are distributed on the nozzle supporting arm 2 in an array manner, so that the omnibearing spraying of the surface of the wind turbine blade can be met, and the spraying without death and omission can be realized.
Further, after a certain blade of control wind turbine rotated to being parallel with a tower section of thick bamboo, support assembly 1 was under telescopic component 12's effect, was visited nozzle support arm 2, and further nozzle support arm 2 rotates along its axis of rotation, carries out non-contact pincers to this blade and embraces to make nozzle 3 of installing on nozzle support arm 2 can face wind turbine blades's windward side one side, and then can be better carry out deicing operation to wind turbine blades.
In one embodiment of the present invention, the telescopic assembly 12 comprises a first hydraulic cylinder 121 and a second hydraulic cylinder 122, wherein the extension direction of the output shaft of the first hydraulic cylinder 121 is perpendicular to the installation plane of the propulsion assembly 11, and the extension direction of the output shaft of the second hydraulic cylinder 122 is at an angle to the installation plane of the propulsion assembly 11, so that the first hydraulic cylinder 121 is used for supporting the telescopic control of the horizontal direction of the total frame 1; the second hydraulic cylinder 122 is used for controlling the extension and contraction of the pitch and swing angle of the support frame 1.
It should be noted that the array distribution of the nozzles 3 is determined by modeling and analyzing the atomization parameters, the high altitude flow field parameters, the wind turbine blade airfoil parameters and other data of the nozzles 3, and the nozzles 3 are distributed in this way, which better ensures the uniformity of the spraying effect on the wind turbine blades compared with the traditional uniform distribution type nozzle distribution method, and further, the model established by the wind turbine blade airfoil parameter data in the invention is a universal wind turbine blade with a specific model of NREL 5MW universal wind turbine blade.
Further, all set up two nozzle support arms 2 with supporting total frame 1 symmetry to two nozzle support arms 2 are the symmetry and set up on supporting total frame 1, just so make when the spraying operation begins, through rotating two nozzle support arms 2 simultaneously, make nozzle support arm 2 can accomplish non-contact pincers to the blade and embrace the action.
It should be noted that the nozzle support arm 2 is in the retracted state when the leeward side of the blade is being painted. When the windward side of the blade is sprayed, the nozzle supporting arm 2 is in a clamping state.
Furthermore, the nozzles 3 are rotatably arranged on the nozzle supporting arms 2, so that the nozzles 3 can adapt to changes of chord lengths and surface shapes of the blades during the spraying operation, and each nozzle 3 can be always aligned with the blade, thereby completing the efficient spraying operation on the blade. The nozzle 3 can be adjusted in direction as needed in accordance with changes in the chord length of the blade and the surface shape during the spraying operation.
In one embodiment of the present invention, a first angle adjusting motor 4 is disposed at the connection point of each nozzle 3 and the nozzle supporting arm 2.
By arranging the plurality of first angle adjusting motors 4, each nozzle 3 can be independently adjusted in direction.
In one embodiment of the present invention, a second angle adjusting motor 5 is provided at the connection of each nozzle supporting arm 2 and the supporting assembly 1.
Through setting up second angle accommodate motor 5 to can drive nozzle support arm 2 and accomplish the pincers and embrace the action, and in time withdraw after the spraying is accomplished, thereby avoided nozzle support arm 2 to produce with the motion of wind energy conversion system blade and interfere, avoid damaging wind energy conversion system blade and nozzle support arm 2.
In one embodiment of the present invention, each of the nozzle support arms 2 includes a first connection portion 21 and a second connection portion 22, one end of the first connection portion 21 is connected to the support assembly 1, and the other end of the first connection portion 21 is connected to the second connection portion 22.
Set up nozzle support arm 2 into first connecting portion 21 and second connecting portion 22 two parts to first connecting portion 21 has an contained angle alpha with the junction of second connecting portion 22, make nozzle support arm 2 to embrace wind turbine blade non-contact pincers from this, and through the setting of contained angle alpha, make nozzle support arm 2 when pincers embrace the blade, can be better suit with the shape of blade, when improving the spraying effect, also can prevent that nozzle support arm 2 from producing with the blade and interfering.
Further, in an embodiment of the present invention, the length of the first connection portion 21 is L1, the length of the second connection portion 22 is L2, wherein the number of nozzles 3 on the first connection portion 21 is N1, the number of nozzles 3 on the second connection portion 22 is N2, wherein L1: L2= 3; n1: N2= 2.
The spacing distance between two adjacent nozzles 3 on the first connecting part 21 is D1; the distance between two adjacent nozzles 3 on the second connecting portion 22 is D2, and D1: D2= 1.
The included angle alpha ranges from 105 degrees to 120 degrees; the range of the L1 is 1050mm-1650mm; the range of the L2 is 1575mm-2475mm; the range of D1 is 80mm-120mm; the range of D2 is 400mm-600mm.
In an embodiment of the present invention, the included angle α is preferably 110 °, the length L1 of the first connection portion 21 is preferably 1200mm, the length L2 of the second connection portion 22 is preferably 1800mm, the distance D1 between two adjacent nozzles 3 on the first connection portion 21 is preferably 100mm, and the distance D2 between two adjacent nozzles 3 on the second connection portion 22 is preferably 500mm, it should be noted that when the length L1 is less than 1050mm and the length L2 is 1575mm, when the nozzle 3 arranged on the nozzle support arm 2 sprays the blade, the spraying angle is too low, which results in low utilization rate of the paint, when the length L1 is greater than 1650 and the length L2 is greater than 2475, when the nozzle 3 arranged on the nozzle support arm 2 sprays the blade, the spraying angle is too large, which results in uneven spraying of the paint, which further restricts the spraying effect, therefore, in this application, the length L1 of the first connection portion 21 is preferably 1200mm, the length L2 of the second connection portion 22 is preferably 1800mm, the distance D3 between two adjacent nozzles 21 is preferably 500mm, thereby achieving the improved utilization rate of the blade spraying of the wind turbine blade, and the blade.
The proportion table:
therefore, from the above comparative example table and fig. 9 to 10, it can be seen that in the present application, it is preferable that the included angle α is 110 °, the length L1 of the first connection portion 21 is 1200mm, the length L2 of the second connection portion 22 is 1800mm, the distance D1 between two adjacent nozzles 3 on the first connection portion 21 is 100mm, and the distance D2 between two adjacent nozzles 3 on the second connection portion 22 is 500mm, so that the spraying effect of each nozzle 3 on the wind turbine blade is optimal, and the film forming thickness and the film forming rate of the coating material are optimal.
In one embodiment of the invention, a connecting line is arranged in the nozzle supporting arm 2.
Through set up connecting line in nozzle support arm 2, and then carry out pipeline rational arrangement to each nozzle 3, carry out rational distribution to the flow of each nozzle 3.
In one embodiment of the invention, the spraying device further comprises a paint supply tank 6 and a pipeline connecting part 7 for connecting the nozzle 3 and the paint supply tank 6, wherein the pipeline connecting part 7 comprises a first pipeline 71, and the first pipeline 71 is used for connecting the air compressing and paint supply tank 6; and one end of the second pipeline 72 is communicated with the first pipeline 71, and the other end of the second pipeline 72 is connected with the nozzle 3 through a connecting pipeline in the nozzle supporting arm 2.
It should be noted that the nozzle support arm 2 is hollow, the connecting pipeline is at least two rubber hoses arranged in the nozzle support arm 2, the rubber hoses are respectively connected with the pipelines of each nozzle 3, and the pipe diameter of the second pipeline 72 is greater than that of the rubber hoses, so that the flow of each nozzle 3 is reasonably distributed.
It should be noted that the variable working medium pump is arranged in the coating supply tank 6, so that the nozzle 3 can spray the deicing agent to perform deicing operation on the wind turbine blade, and can also spray the anti-icing agent to perform anti-icing treatment on the blade immediately before the blade is frozen, thereby improving the practicability of the invention.
The nozzle supporting arm 2 is provided with a plurality of circumferential holes 23, the circumferential holes 23 are 3/4 of a circumference, and the circle center of each circumferential hole 23 is coincided with the rotation axis of the nozzle 3.
The nozzle 3 comprises an atomizing nozzle 31, a paint conveying pipeline 32 and a gas conveying pipeline 33, wherein the paint conveying pipeline and the gas conveying pipeline 33 are embedded in the circumferential hole 23.
And the nozzle support frame 2 is also provided with a monitoring camera 8 and an infrared imaging camera 9.
By arranging the monitoring camera 8 and the infrared imaging camera 9, the spraying effect of the nozzle 3 in the spraying operation can be monitored in real time.
In one embodiment of the present invention, a flow guiding cover 24 is further disposed on the nozzle supporting frame 2.
By arranging the air guide sleeve 24, the high-altitude air flow can be stably processed in the spraying process of the static deicing agent for the blades, so that the spraying effect is prevented from being interfered by the high-altitude air flow, and the spraying effect is further improved.
It should be noted that, after the air guide sleeve 24 is installed, the stability of the air flow in the space field near the rear nozzle is improved, meanwhile, the air guide plate is symmetrically divided into an upper part and a lower part, the structures of the two parts are the same, and the top guide plate and the middle wedge-shaped guide plate are connected through the reinforcing ribs, so that the strength of the air guide plate is improved, the weight of the air guide plate is reduced, and the stability and the safety of the device are improved.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A wind turbine blade spraying device is applied to spraying operation of wind turbine blades and is characterized by comprising a supporting main frame and a propelling assembly, wherein two nozzle supporting arms are symmetrically arranged on the supporting main frame, each nozzle supporting arm is rotatably arranged on the supporting main frame, the two nozzle supporting arms are symmetrically arranged, a plurality of nozzles are distributed on the nozzle supporting arms in an array mode, and each nozzle is rotatably connected with the nozzle supporting arm; the supporting general frame is arranged on the propelling assembly through a telescopic component.
2. The wind turbine blade spraying device as claimed in claim 1, wherein: and a first angle adjusting motor is arranged at the joint of each nozzle and the nozzle supporting arm.
3. The wind turbine blade spraying device as claimed in claim 1, wherein: and a second angle adjusting motor is arranged at the joint of each nozzle supporting arm and the supporting general frame.
4. The wind turbine blade spraying device as claimed in any one of claims 1 or 2, wherein: every the nozzle support arm all includes first connecting portion and second connecting portion, the one end of first connecting portion with support the assembly and be connected, the other end of first connecting portion with the second connecting portion are connected.
5. The wind turbine blade spraying device as claimed in claim 4, wherein: an included angle α is formed at a joint of the first connecting portion and the second connecting portion, the length of the first connecting portion 21 is L1, the length of the second connecting portion is L2, the number of nozzles on the first connecting portion is N1, the number of nozzles on the second connecting portion is N2, wherein L1: L2= 3; n1: N2= 2.
6. The wind turbine blade spraying device as claimed in claim 5, wherein: the spacing distance between two adjacent nozzles on the first connecting part is D1; the distance between two adjacent nozzles on the second connecting portion is D2, and D1: D2= 1.
7. The wind turbine blade spraying device as claimed in claim 6, wherein: the included angle alpha ranges from 105 degrees to 120 degrees; the range of the L1 is 1050mm-1650mm; the range of the L2 is 1575mm-2475mm; the range of D1 is 80mm-120mm; the range of D2 is 400mm-600mm.
8. The wind turbine blade spraying device as claimed in any one of claims 1 or 2, wherein: and a connecting pipeline is arranged in the nozzle supporting arm.
9. The wind turbine blade spraying device as claimed in claim 6, wherein: the spraying device also comprises a coating supply box and a pipeline connecting part for connecting the nozzle and the coating supply box, wherein the pipeline connecting part comprises a first pipeline, and the first pipeline is used for connecting the air compressing and coating supply box; and one end of the second pipeline is communicated with the first pipeline, the other end of the second pipeline is connected with the nozzle through a connecting pipeline in the nozzle supporting arm, and a flow distribution level is arranged at the joint of the second pipeline and the nozzle supporting arm.
10. The wind turbine blade spraying device as claimed in claim 9, wherein: the nozzle support arm is provided with a plurality of circumferential holes, the circumferential holes are 3/4 of the circumference, and the circle center of each circumferential hole is coincided with the rotation axis of the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211626151.9A CN115846087A (en) | 2022-12-15 | 2022-12-15 | Wind turbine blade spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211626151.9A CN115846087A (en) | 2022-12-15 | 2022-12-15 | Wind turbine blade spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115846087A true CN115846087A (en) | 2023-03-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211626151.9A Pending CN115846087A (en) | 2022-12-15 | 2022-12-15 | Wind turbine blade spraying device |
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| CN (1) | CN115846087A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11221503A (en) * | 1998-02-10 | 1999-08-17 | Sekisui Chem Co Ltd | Coater |
| KR20100023108A (en) * | 2008-08-21 | 2010-03-04 | 중앙산업 (주) | Epoxy lining apparatus for an pipe |
| CN103736618A (en) * | 2014-01-23 | 2014-04-23 | 太原理工大学 | Multifunctional antifreezing solution spraying device and usage thereof |
| CN107824356A (en) * | 2017-11-21 | 2018-03-23 | 中冶天工集团天津有限公司 | A kind of crane girder painting device and the coating process using the crane girder painting device |
| CN110538748A (en) * | 2019-08-29 | 2019-12-06 | 南京禹智智能科技有限公司 | industrial paint spraying robot with adjusting function |
| CN212943684U (en) * | 2020-06-01 | 2021-04-13 | 西安中科微精光子制造科技有限公司 | Blade protective layer spraying device with coating |
| CN114377881A (en) * | 2022-02-21 | 2022-04-22 | 东北电力大学 | Anti-icing agent spraying device for wind driven generator blade and using method |
-
2022
- 2022-12-15 CN CN202211626151.9A patent/CN115846087A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11221503A (en) * | 1998-02-10 | 1999-08-17 | Sekisui Chem Co Ltd | Coater |
| KR20100023108A (en) * | 2008-08-21 | 2010-03-04 | 중앙산업 (주) | Epoxy lining apparatus for an pipe |
| CN103736618A (en) * | 2014-01-23 | 2014-04-23 | 太原理工大学 | Multifunctional antifreezing solution spraying device and usage thereof |
| CN107824356A (en) * | 2017-11-21 | 2018-03-23 | 中冶天工集团天津有限公司 | A kind of crane girder painting device and the coating process using the crane girder painting device |
| CN110538748A (en) * | 2019-08-29 | 2019-12-06 | 南京禹智智能科技有限公司 | industrial paint spraying robot with adjusting function |
| CN212943684U (en) * | 2020-06-01 | 2021-04-13 | 西安中科微精光子制造科技有限公司 | Blade protective layer spraying device with coating |
| CN114377881A (en) * | 2022-02-21 | 2022-04-22 | 东北电力大学 | Anti-icing agent spraying device for wind driven generator blade and using method |
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