Deicing device for blades of wind generating set

Abstract

The utility model discloses a wind generating set blade deicing device which comprises a base, a support, a machine box, a rotating body and a blade, the support is fixedly connected to the top of the support, the machine box is fixedly connected to the top of the support, the rotating body is movably connected to the right side of the machine box, and the blade is fixedly connected to the surface of the rotating body. The number of the blades is three, the three blades are annularly distributed at equal intervals, and deicing mechanisms are fixedly connected to the surfaces of the blades. Through the arrangement of the deicing mechanism, the deicing mechanism can quickly deice the blades when the blades are iced, the situation that the blades fall off or are damaged due to the fact that the weight of the blades is increased by ice is avoided, and the problem that an existing deicing device deices by increasing the internal temperature is solved. And the speed is low, meanwhile, the protruding air outlet pipes and the sensors on the surfaces of the blades can influence rotation of the blades, and the deicing device has the advantage of being higher in deicing speed.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine generator technology, specifically to a de-icing device for wind turbine generator blades. Background Technology

[0002] A wind power generation system consists of a wind turbine generator set, a tower supporting the generator set, a battery charging controller, an inverter, a load unloader, a grid connection controller, and a battery bank. The wind turbine generator set includes a wind rotor and a generator set, with blades inside the wind rotor.

[0003] Existing examples include Chinese invention patent application number CN202320205772.3, which discloses a de-icing device for wind turbine blades, belonging to the field of wind turbine technology. Specifically, it includes a base, a tower fixed above the base, a chassis fixed at the top of the tower, a rotating body at the output end of the chassis, and three blades on the rotating body. Each blade has an internal cavity, which is divided into a placement cavity and a de-icing cavity by a first partition. The de-icing cavity is further divided into multiple heating chambers by a second partition. The de-icing chamber has an installation pipe and an air outlet pipe. A heating pipe is installed in the installation pipe, and a blower is installed in the placement cavity. This invention, through the heating chamber, installation pipe, air outlet pipe, heating pipe, air supply pipe, air outlet pipe, air nozzle, and blower, can precisely heat the iced parts of the blades, accelerating the de-icing efficiency. The uniced parts of the blades do not require heating, avoiding heat waste and rationally utilizing heat energy while reducing electrical energy loss.

[0004] Existing de-icing devices de-ice by raising the internal temperature, which is not only slow, but the protruding air inlet pipe and sensors on the blade surface also affect the rotation of the blades. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a de-icing device for wind turbine blades, which has the advantage of faster de-icing and solves the problem that existing de-icing devices rely on increasing the internal temperature for de-icing, which is not only slow but also causes the protruding air outlet pipe and sensor on the blade surface to affect the rotation of the blade.

[0006] To achieve the above objectives, this utility model provides the following technical solution: it includes a base, a bracket, a housing, a rotating body, and blades. The bracket is fixedly connected to the top of the support, the housing is fixedly connected to the top of the support, the rotating body is movably connected to the right side of the housing, the blades are fixedly connected to the surface of the rotating body, and three blades are provided, which are distributed in a ring at equal distances. A de-icing mechanism is fixedly connected to the surface of the blades.

[0007] As a preferred embodiment of the present invention, the de-icing mechanism includes an aerogel, which is fixed to the surface of the blade. A partition is fixedly connected to the inner wall of the blade. Several partitions are provided and are distributed at equal intervals. A grid groove is formed on the surface of the aerogel.

[0008] As a preferred embodiment of this invention, the inner wall of the mesh groove is fixedly connected with a mesh copper wire.

[0009] As a preferred embodiment of the present invention, the surface of the aerogel is provided with grooves, and the grooves are provided in a plurality of manners, and the plurality of grooves are distributed at equal intervals.

[0010] As a preferred embodiment of this invention, an icing sensor is fixedly connected to the inner wall of the groove.

[0011] As a preferred embodiment of this utility model, a power source is fixedly connected to one side of the partition, and several power sources are provided, which are distributed at equal distances. Through holes are provided on both sides of the left side of the partition.

[0012] As a preferred embodiment of this invention, a control device is fixedly connected to the top of the power supply.

[0013] As a preferred embodiment of this invention, the surface of the aerogel is fixedly connected with a graphene coating.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up a de-icing mechanism, can quickly remove ice from the blades when they are icy, avoiding the increase in blade weight caused by ice, which could lead to blade detachment or damage. It solves the problem that existing de-icing devices rely on increasing the internal temperature for de-icing, which is not only slow but also affects the rotation of the blades due to the protruding air outlet pipe and sensor on the blade surface. This invention has the advantage of faster de-icing.

[0016] 2. By setting up a de-icing mechanism, this utility model can avoid stress concentration between the blade surface material and the grid copper wire during the heating and cooling cycle, which may damage the structural integrity of the blade surface and cause delamination, cracking, etc. The baffle can support the inner wall of the blade, and the grid groove fixes the grid copper wire to prevent the grid copper wire from protruding.

[0017] 3. This utility model uses a grid of copper wires. When current passes through the grid of copper wires, the wires generate heat. The heat generated is high enough to melt the ice on the blade surface, thereby achieving the purpose of de-icing. The power of the grid of copper wires can be adjusted at different positions of the blade by a control device to achieve the effect of temperature control. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the blade of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Base; 2. Bracket; 3. Chassis; 4. Rotating body; 5. Blade; 6. De-icing mechanism; 61. Aerogel; 62. Partition; 63. Grid groove; 7. Grid copper wire; 8. Groove; 9. Icing sensor; 10. Power supply; 11. Through hole; 12. Control device; 13. Graphene coating. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 3 As shown, the present invention includes a base 1, a bracket 2, a housing 3, a rotating body 4, and blades 5. The bracket 2 is fixedly connected to the top of the bracket 2, the housing 3 is fixedly connected to the top of the bracket 2, the rotating body 4 is movably connected to the right side of the housing 3, and the blades 5 are fixedly connected to the surface of the rotating body 4. There are three blades 5, and the three blades 5 are distributed in a ring at equal distances. A de-icing mechanism 6 is fixedly connected to the surface of the blades 5.

[0024] refer to Figure 3 The de-icing mechanism 6 includes an aerogel 61, which is fixed to the surface of the blade 5. A partition 62 is fixedly connected to the inner wall of the blade 5. Several partitions 62 are provided and are distributed at equal intervals. A grid groove 63 is provided on the surface of the aerogel 61.

[0025] As a technical optimization of this utility model, by setting up the de-icing mechanism 6, the excellent heat insulation effect of the aerogel 61 can avoid stress concentration between the surface material of the blade 5 and the grid copper wire 7 during the heating and cooling cycle, which may damage the structural integrity of the blade 5 surface and cause the blade 5 to delaminate, crack, etc. The partition plate 62 can support the inner wall of the blade 5, and the grid groove 63 fixes the grid copper wire 7 to prevent the grid copper wire 7 from protruding.

[0026] refer to Figure 3 The inner wall of the grid groove 63 is fixedly connected with a grid copper wire 7.

[0027] As a technical optimization of this utility model, by setting up a grid copper wire 7, when current passes through the grid copper wire 7, the grid copper wire 7 will generate heat. The heat generated is high enough to melt the ice on the surface of the blade 5, thereby achieving the purpose of de-icing. The control device 12 adjusts the amount of electricity on the grid copper wire 7 at different positions of the blade 5 to achieve the effect of temperature control.

[0028] refer to Figure 3 The surface of the aerogel 61 has grooves 8, and there are several grooves 8, which are evenly distributed.

[0029] As a technical optimization of this utility model, by setting a groove 8, the icing sensor 9 can be fixed, avoiding the icing sensor from protruding and affecting the rotation of the blade 5.

[0030] refer to Figure 3 An icing sensor 9 is fixedly connected to the inner wall of the groove 8.

[0031] As a technical optimization of this utility model, by setting an icing sensor 9, the icing sensor 9 transmits a signal to the control device 12 to know the icing position of the blade 5, and then the control device 12 controls the power supply 10 to supply power to the grid copper wire 7 at the icing position.

[0032] refer to Figure 2 A power supply 10 is fixedly connected to one side of the partition 62. Several power supplies 10 are provided and are distributed at equal distances. Through holes 11 are provided on both sides of the left side of the partition 62.

[0033] As a technical optimization of this utility model, by setting a power supply 10 and a through hole 11, multiple power supplies 10 can supply power to the grid copper wires 7 at different positions, which can make the operation more stable and avoid overload damage to the power supply 10. The through hole 11 can allow the airflow inside the blade 5 to dissipate heat from the power supply 10.

[0034] refer to Figure 2 A control device 12 is fixedly connected to the top of the power supply 10.

[0035] As a technical optimization of this utility model, by setting up a control device 12, the control device 12 can receive the signal from the icing sensor 9, and then control the start-up of the power supply 10 and the power supply of the power supply 10.

[0036] refer to Figure 3 A graphene coating 13 is fixedly attached to the surface of aerogel 61.

[0037] As a technical optimization of this utility model, by setting a graphene coating 13 and applying the graphene coating 13 to the blade 5, the heat generated by the grid copper wire 7 can be effectively transferred to the ice layer during de-icing.

[0038] The working principle and usage process of this utility model: During use, the excellent heat insulation effect of the aerogel 61 can prevent stress concentration between the surface material of the blade 5 and the grid copper wire 7 during heating and cooling cycles, which could damage the structural integrity of the blade 5 surface and cause delamination or cracking. The partition plate 62 supports the inner wall of the blade 5, and the grid groove 63 fixes the grid copper wire 7, preventing it from protruding. When current passes through the grid copper wire 7, it generates heat. The heat generated is high enough to melt the ice on the surface of the blade 5, thus achieving de-icing. The control device 12 adjusts the current to the grid copper wire 7 at different positions of the blade 5 to control the temperature. The groove 8 can... The icing sensor 9 is fixed in place to prevent it from protruding and affecting the rotation of the blade 5. The icing sensor 9 transmits a signal to the control device 12 so that it knows the icing position of the blade 5. Then, the control device 12 controls the power supply 10 to supply power to the grid copper wire 7 at the icing position. By using multiple power supplies 10 to supply power to the grid copper wire 7 at different positions, the operation can be more stable and avoid overload damage to the power supply 10. The through hole 11 allows the airflow inside the blade 5 to dissipate heat from the power supply 10. The control device 12 can receive the signal from the icing sensor 9 and then control the start-up of the power supply 10 and the power supply of the power supply 10. The graphene coating 13 is applied to the blade 5 so that the heat generated by the grid copper wire 7 can be effectively transferred to the ice layer during de-icing.

[0039] In summary, this wind turbine blade de-icing device, by setting up a de-icing mechanism 6, can quickly de-ic the blade 5 when it is icy, avoiding the increase in weight of the blade 5 due to ice, which could cause the blade 5 to fall off or be damaged. It solves the problem that existing de-icing devices rely on increasing the internal temperature for de-icing, which is not only slow but also affects the rotation of the blade due to the protruding air outlet pipe and sensor on the blade surface.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A de-icing device for wind turbine blades, comprising a base (1), a support (2), a casing (3), a rotating body (4), and blades (5), characterized in that: The bracket (2) is fixedly connected to the top of the bracket (2), the chassis (3) is fixedly connected to the top of the bracket (2), the rotating body (4) is movably connected to the right side of the chassis (3), the blade (5) is fixedly connected to the surface of the rotating body (4), there are three blades (5), and the three blades (5) are distributed in a ring at equal distances, and the surface of the blade (5) is fixedly connected to a de-icing mechanism (6).

2. The de-icing device for wind turbine blades according to claim 1, characterized in that: The de-icing mechanism (6) includes an aerogel (61), which is fixed on the surface of the blade (5). A partition (62) is fixedly connected to the inner wall of the blade (5). A plurality of partitions (62) are provided, and the plurality of partitions (62) are distributed at equal distances. A grid groove (63) is provided on the surface of the aerogel (61).

3. The de-icing device for wind turbine blades according to claim 2, characterized in that: The inner wall of the grid groove (63) is fixedly connected with a grid copper wire (7).

4. The de-icing device for wind turbine blades according to claim 2, characterized in that: The surface of the aerogel (61) is provided with grooves (8), and there are several grooves (8) and the grooves (8) are distributed at equal distances.

5. The wind turbine blade de-icing device according to claim 4, characterized in that: An icing sensor (9) is fixedly connected to the inner wall of the groove (8).

6. The de-icing device for wind turbine blades according to claim 2, characterized in that: A power source (10) is fixedly connected to one side of the partition (62). There are several power sources (10), and the power sources (10) are distributed at equal distances. Through holes (11) are opened on both sides of the left side of the partition (62).

7. The de-icing device for wind turbine blades according to claim 6, characterized in that: A control device (12) is fixedly connected to the top of the power supply (10).

8. The de-icing device for wind turbine blades according to claim 2, characterized in that: The surface of the aerogel (61) is fixedly connected with a graphene coating (13).

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