Efficient deicing device for wind power blade

Abstract

The utility model provides an efficient deicing device for a wind power blade, which comprises a generator blade, a heating mechanism is arranged in an inner cavity of the generator blade, the heating mechanism is used for heating the generator blade, a patch type heater is arranged on the inner wall of the generator blade, a supporting block is fixedly connected to the inner wall of the generator blade, and the heating mechanism is used for heating the generator blade. A fixing mechanism is arranged on one side of the heating mechanism and used for fixing the heating mechanism, the generator blade comprises a blade body and a drainage layer arranged on the outer side of the blade body, the heating mechanism comprises a partition plate, the partition plate is located in an inner cavity of the generator blade, and an air heater is fixedly connected to the top of the partition plate. According to the efficient deicing device for the wind power blade, the problem that although an existing device achieves the deicing purpose, if a device installed in the blade is damaged, a user cannot conveniently disassemble and overhaul the device is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a high-efficiency deicing device for wind power blades. Background Art

[0002] When the surface of a wind turbine blade is covered with ice, the airfoil of the blade will change irregularly, causing the blade surface to be highly uneven and the roughness to increase, which will result in reduced lift, increased drag, and reduced aerodynamic performance, ultimately leading to a reduction in speed or even a stop. The utilization rate of wind energy will also decrease, making it impossible to generate electricity stably, affecting the stable operation of the power system.

[0003] The patent document with announcement number: CN215908008U discloses "a highly efficient deicing device for wind turbine blades", which includes: a first blower installed on the upper side of the middle partition, and its position is at the root of the blade; a heating device, connected to the first blower through an air duct; a first sealing partition, connected to the inner wall of the middle partition and the blade, the first sealing partition is on the upper side of the middle partition, and the first sealing partition is connected to the air outlet of the heating device; an insulation layer is laid on the inner wall of the front section of the blade above the middle partition. Through the technical solution of the utility model, hot air is sent to the middle and blade tip positions that are more prone to ice formation, there is enough air volume inside, the deicing effect is better, the installation and maintenance are simple, the maintenance cost is low, and it can be applied to new wind farms and can also be applied to the renovation of old wind farms.

[0004] Although the device uses the first blower to cooperate with the heating device to send hot air to the middle and blade tips which are more prone to ice formation, and there is sufficient air volume inside to achieve the purpose of deicing, if the first blower or other devices installed inside the blade are damaged, it is inconvenient for the user to disassemble and repair them. Therefore, it is necessary to provide an efficient deicing device for wind turbine blades that is easy to maintain. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a high-efficiency deicing device for wind turbine blades which is easy to maintain.

[0006] The utility model provides a high-efficiency deicing device for wind turbine blades, comprising a generator blade, an inner cavity of the generator blade is provided with a heating mechanism, the heating mechanism is used to heat the generator blade, the inner wall of the generator blade is provided with a patch heater, the inner wall of the generator blade is fixedly connected with a support block, and a fixing mechanism is provided on one side of the heating mechanism, the fixing mechanism is used to fix the heating mechanism.

[0007] In order to facilitate the drainage of water droplets, the utility model provides a high-efficiency deicing device for wind turbine blades. Preferably, the generator blade includes a blade body and a hydrophobic layer arranged on the outer side of the blade body.

[0008] In order to facilitate heating of the inside of the generator blades, the utility model provides a high-efficiency deicing device for wind turbine blades. Preferably, the heating mechanism includes a partition, which is located in the inner cavity of the generator blades, and a hot air blower is fixedly connected to the top of the partition, and the air outlet of the hot air blower is connected to a perforated pipe.

[0009] In order to facilitate the internal maintenance of the generator blades, the utility model provides a high-efficiency deicing device for wind turbine blades. Preferably, the fixing mechanism includes a fixing block, the fixing block is fixed to one side of the partition, and the inner cavity of the fixing block is threadedly connected with a fixing bolt.

[0010] In order to improve the stability of the fixed block, the utility model provides an efficient deicing device for wind turbine blades. Preferably, the top and bottom of the fixed block are fixedly connected with connecting plates, one side of the connecting plate is fixedly connected with a clamping plate, one side of the generator blade is provided with a clamping groove used in conjunction with the clamping plate, and the outer side of the clamping plate is clamped with the inner cavity of the clamping groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The high-efficiency deicing device for wind turbine blades can move the partition into the generator blade when installing the partition into the generator blade, so that one end of the generator blade is against the inner wall of the generator blade, and then the fixing bolt is twisted into the fixing block and finally into the threaded groove on the outer side of the generator blade to fix the partition to the inside of the generator blade. When the partition is taken out and the hot air blower and other equipment are inspected and repaired, the fixing bolt can be twisted out of the fixing block to release the fixation of the partition, and then the partition can be pulled out from the generator blade. This solves the problem that although the current device achieves the purpose of deicing, if the device installed inside the blade is damaged, it is inconvenient for the user to disassemble and repair it. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a preferred embodiment of a wind turbine blade efficient deicing device provided by the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the generator blade of the utility model;

[0015] Figure 3 This is a structural cross-sectional view of the generator blade of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the generator blade of the utility model;

[0017] Figure 5 This is a structural side view of the generator blade of the utility model.

[0018] Numbers in the figure: 1. generator blade; 101. blade body; 102. hydrophobic layer; 2. heating mechanism; 201. partition; 202. hot air blower; 203. hole tube; 3. patch heater; 4. support block; 5. fixing mechanism; 501. fixing block; 502. fixing bolt; 6. connecting plate; 7. snap-in plate; 8. snap-in groove. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in Figure 1 A schematic structural diagram of a preferred embodiment of a wind turbine blade efficient deicing device provided by the utility model; Figure 2 This is a schematic diagram of the internal structure of the generator blade of the utility model; Figure 3 This is a structural cross-sectional view of the generator blade of the utility model; Figure 4 It is a schematic diagram of the cross-sectional structure of the generator blade of the utility model; Figure 5 A high-efficiency deicing device for wind turbine blades includes a generator blade 1, a heating mechanism 2 is provided in the inner cavity of the generator blade 1, the heating mechanism 2 is used to heat the generator blade 1, a patch heater 3 is provided on the inner wall of the generator blade 1, a support block 4 is fixedly connected to the inner wall of the generator blade 1, and a fixing mechanism 5 is provided on one side of the heating mechanism 2, the fixing mechanism 5 is used to fix the heating mechanism 2.

[0021] In this embodiment: the generator blade 1 can be heated by the heating mechanism 2, so as to remove the ice on the outside of the generator blade 1, so as to prevent the surface of the generator blade 1 from being covered with ice and affecting the normal use of the generator blade 1. By setting up the fixing mechanism 5, the user can easily install the heating mechanism 2 inside the generator blade 1, or remove the heating mechanism 2 from the generator blade 1 for maintenance.

[0022] As a technical optimization solution of the present invention, the generator blade 1 includes a blade body 101 and a hydrophobic layer 102 arranged on the outer side of the blade body 101 .

[0023] In this embodiment, the hydrophobic layer 102 is a hydrophobic coating. By providing the hydrophobic layer 102 , the probability of water adhering to the generator blades 1 is reduced, thereby reducing the probability of ice coating.

[0024] As a technical optimization solution of the utility model, the heating mechanism 2 includes a partition 201, which is located in the inner cavity of the generator blade 1. A hot air blower 202 is fixedly connected to the top of the partition 201, and the air outlet of the hot air blower 202 is connected to a perforated pipe 203.

[0025] In this embodiment: one end of the perforated tube 203 passes through the inner cavity of the partition 201, and the hot air blower 202 generates a hot air flow. The hot air flow enters the perforated tube 203 and is then discharged through the holes in the perforated tube 203 to heat the inside of the generator blade 1, thereby increasing the temperature of the generator blade 1 and melting the ice on the outside of the generator blade 1.

[0026] As a technical optimization solution of the utility model, the fixing mechanism 5 includes a fixing block 501, the fixing block 501 is fixed to one side of the partition 201, and the inner cavity of the fixing block 501 is threadedly connected with a fixing bolt 502;

[0027] The top and bottom of the fixed block 501 are fixedly connected with a connecting plate 6, one side of the connecting plate 6 is fixedly connected with a clamping plate 7, one side of the generator blade 1 is provided with a clamping groove 8 used in conjunction with the clamping plate 7, and the outer side of the clamping plate 7 is clamped with the inner cavity of the clamping groove 8.

[0028] In this embodiment: a threaded groove for use with a fixing bolt 502 is opened on one side of the generator blade 1. When the partition 201 is installed inside the generator blade 1, the partition 201 can be moved into the generator blade 1 so that one end of the generator blade 1 is against the inner wall of the generator blade 1, and then the fixing bolt 502 is twisted into the fixing block 501, and finally twisted into the threaded groove on the outside of the generator blade 1 to fix the partition 201 to the inside of the generator blade 1. When the partition 201 is taken out and the hot air blower 202 and other equipment are inspected and repaired, the fixing bolt 502 can be twisted out from the fixing block 501 to release the fixation of the partition 201, and then the partition 201 can be pulled out from the inside of the generator blade 1. When the partition 201 is inserted into the generator blade 1, the snap-in plate 7 will also be snapped into the snap-in groove 8. By providing the snap-in plate 7 and the snap-in groove 8, the connection stability between the partition 201 and the generator blade 1 is improved.

[0029] The working principle of a wind turbine blade high-efficiency deicing device provided by the utility model is as follows:

[0030] The hot air blower 202 generates a hot air flow, which enters the perforated tube 203 and is then discharged through the holes in the perforated tube 203, heating the inside of the generator blade 1, thereby increasing the temperature of the generator blade 1 and melting the ice on the outside of the generator blade 1. The patch heater 3 can also assist in heating the generator blade 1. When installing the partition 201 into the inside of the generator blade 1, the partition 201 can be moved into the inside of the generator blade 1 so that one end of the generator blade 1 is against the inner wall of the generator blade 1, and then the fixing bolt 502 is twisted into the fixing block 501 and finally twisted into the threaded groove on the outside of the generator blade 1 to fix the partition 201 to the inside of the generator blade 1. When the partition 201 is taken out and the hot air blower 202 and other equipment are inspected and repaired, the fixing bolt 502 can be twisted out of the fixing block 501 to release the fixation of the partition 201, and then the partition 201 can be pulled out from the inside of the generator blade 1.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A wind turbine blade high-efficiency deicing device, characterized in that: The invention comprises a generator blade (1), wherein the inner cavity of the generator blade (1) is provided with a heating mechanism (2), wherein the heating mechanism (2) is used to heat the generator blade (1), the inner wall of the generator blade (1) is provided with a patch heater (3), the inner wall of the generator blade (1) is fixedly connected with a support block (4), and a fixing mechanism (5) is provided on one side of the heating mechanism (2), wherein the fixing mechanism (5) is used to fix the heating mechanism (2).

2. The high-efficiency deicing device for wind turbine blades according to claim 1 is characterized in that: The generator blade (1) comprises a blade body (101) and a hydrophobic layer (102) arranged on the outer side of the blade body (101).

3. The high-efficiency deicing device for wind turbine blades according to claim 1, characterized in that: The heating mechanism (2) comprises a partition (201), the partition (201) is located in the inner cavity of the generator blade (1), a hot air blower (202) is fixedly connected to the top of the partition (201), and an air outlet of the hot air blower (202) is connected to a perforated pipe (203).

4. The high-efficiency deicing device for wind turbine blades according to claim 3 is characterized in that: The fixing mechanism (5) comprises a fixing block (501), wherein the fixing block (501) is fixed to one side of the partition plate (201), and the inner cavity of the fixing block (501) is threadedly connected with a fixing bolt (502).

5. The high-efficiency deicing device for wind turbine blades according to claim 4 is characterized in that: The top and bottom of the fixed block (501) are both fixedly connected to a connecting plate (6), one side of the connecting plate (6) is fixedly connected to a clamping plate (7), one side of the generator blade (1) is provided with a clamping groove (8) for use with the clamping plate (7), and the outer side of the clamping plate (7) is clamped with the inner cavity of the clamping groove (8).

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