Gas-heat deicing device for blades of wind turbine generator

Abstract

The utility model relates to a wind turbine generator blade gas-heat deicing device which comprises fan blades, a heater, an air blower, a flow guide strip, a heat inlet runner, a gas outlet runner and a gas outlet hole, and the air blower is provided with a first air outlet and a second air outlet; the first air outlet is connected with an air inlet pipe, the air inlet pipe is connected with an air chamber, the air chamber is provided with an air outlet pipe, the air chamber is provided with a first rotating shaft, the first rotating shaft is provided with a power fan matched with the air chamber, the first rotating shaft is provided with a rotating disc, and the rotating disc is provided with a cylinder; the fan blades are provided with a second rotating shaft, the second rotating shaft is provided with a rotating rod, the rotating rod is provided with a sliding groove matched with the cylinder, the cylinder is provided with a supporting frame, the second air outlet is connected with a corrugated pipe, and the corrugated pipe is provided with an air spraying pipe matched with the supporting frame.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a wind turbine blade air-heat deicing device. Background Art

[0002] With the continuous development of social productivity, energy has become an indispensable and important foundation for people's lives. In the development of new energy, wind energy has the advantages of being renewable, easy to develop, and mature technology. The use of wind power generation is very environmentally friendly, and the wind energy reserves are huge, so it is increasingly valued by countries around the world. When wind power generation operates under cold climate conditions, the blades of the wind turbine are prone to ice formation. This phenomenon will have the following hazards: Blade ice will damage the original aerodynamic characteristics of the blades to varying degrees, reduce power output, and in severe cases, it will be forced to shut down, thereby reducing the power generation of the unit. When the blades are frozen, the additional load of the unit will be increased, and long-term load operation will reduce the service life of the wind turbine. When the blades are frozen, there will be a phenomenon of ice falling off, which poses a risk of endangering personal and equipment safety.

[0003] The utility model patent is named "A wind turbine blade air-heat deicing device" (application number 202222441680.3) and proposes "This utility model discloses a wind turbine blade air-heat deicing device, which relates to the field of wind power generation technology, including a fan blade, wherein the left side of the fan blade is fixedly connected with an arc-shaped thin plate, the bottom end of the arc-shaped thin plate is fixedly connected to the bottom of the inner cavity of the fan blade, the top end of the arc-shaped thin plate is fixedly connected with a seal, the seal is fixedly connected to the inner wall of the fan blade, a cavity is formed between the arc-shaped thin plate and the inner wall of the fan blade, and the right side of the inner wall of the fan blade is fixedly connected There are several guide strips, the front of the guide strip is fixedly connected to the trapezoidal thin plate, the top of the trapezoidal thin plate is fixedly connected to the top of the inner cavity of the fan blade, the bottom of the trapezoidal thin plate is fixedly connected to the bottom of the inner cavity of the fan blade, the trapezoidal thin plate and the inner wall of the fan blade form an inlet hot flow channel above the guide strip, and the trapezoidal thin plate and the inner wall of the fan blade form an outlet flow channel below the guide strip. The utility model can prevent hot air from filling the entire fan blade by setting an arc-shaped thin plate and a trapezoidal thin plate, thereby quickly removing ice. "However, the utility model patent has the following problems:

[0004] 1. The application did not take into account that the fixed position of the blower causes the flow path of most of the hot air to first pass through the hot runner and then through the outlet flow channel and finally be discharged from the outlet hole. This treatment method is not good because it reduces the hot air in the guide strip, resulting in poor overall deicing effect and failing to achieve the best treatment effect. Utility Model Content

[0005] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a wind turbine blade air-heat deicing device to solve the problems existing in the prior art.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0007] A wind turbine blade air-heat deicing device comprises a fan blade, a heater, a blower, a guide strip, a heat inlet channel, an outlet channel and an air outlet, wherein the blower is provided with a first air outlet and a second air outlet;

[0008] The first air outlet is connected to an air inlet pipe, the air inlet pipe is connected to an air chamber, the air chamber is equipped with an air outlet pipe, the air chamber is equipped with a first rotating shaft, the first rotating shaft is equipped with a power fan matching the air chamber, the first rotating shaft is equipped with a rotating disk, and the rotating disk is provided with a cylinder;

[0009] The fan blade is installed with a second rotating shaft, the second rotating shaft is installed with a rotating rod, the rotating rod is provided with a slide groove matching the cylinder, the cylinder is installed with a support frame, the second air outlet is connected with a bellows, and the bellows is installed with an air jet pipe matching the support frame.

[0010] It is further defined that the power fan is sprayed with a coating. Such a structural design reduces the probability of the power fan being rusted and corroded, thereby extending the service life of the equipment.

[0011] It is further defined that the turntable is installed with a rubber cushion layer. Such a structural design reduces friction damage to the turntable and prolongs the service life of the equipment.

[0012] It is further defined that the cylinder is provided with a rubber cushion layer. Such a structural design reduces friction damage to the cylinder and prolongs the service life of the equipment.

[0013] It is further defined that the slideway is provided with a rubber cushion layer. Such a structural design reduces friction damage to the slideway and prolongs the service life of the equipment.

[0014] The technical solution of the utility model has the following beneficial effects:

[0015] The utility model provides a rotating rod and an air jet pipe, so that the utility model can achieve the effect of guiding the hot air flow to the guide strip through the rotating rod and the air jet pipe, so that the overall deicing effect of the equipment is better;

[0016] The utility model is provided with a wind chamber and a power fan, so that the utility model can achieve the effect of utilizing the wind force of the blower through the wind chamber and the power fan, and is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0018] Figure 1It is a structural schematic diagram of a wind turbine blade gas-heat deicing device according to the utility model;

[0019] Figure 2 yes Figure 1 An enlarged schematic diagram of the A region in FIG.

[0020] Figure 3 The utility model is a front view cross-sectional view of a wind chamber and related components of a wind turbine blade air-heat deicing device.

[0021] The symbols of the main components are explained as follows: fan blades 1; heater 2; blower 3; guide strip 4; hot runner inlet 5; air outlet duct 6; air outlet 7; first air outlet 8; second air outlet 9; air inlet pipe 10; wind chamber 11; air outlet pipe 12; first rotating shaft 13; power fan 14; turntable 15; cylinder 16; second rotating shaft 17; rotating rod 18; slide 19; support frame 20; bellows 21; jet pipe 22. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1 to Figure 3 As shown, a wind turbine blade air-heat deicing device comprises a fan blade 1, a heater 2, a blower 3, a guide strip 4, a hot inlet flow channel 5, an outlet flow channel 6 and an air outlet 7, and the blower 3 is provided with a first air outlet 8 and a second air outlet 9;

[0024] The first air outlet 8 is connected to an air inlet pipe 10, the air inlet pipe 10 is connected to an air chamber 11, the air chamber 11 is equipped with an air outlet pipe 12, the air chamber 11 is equipped with a first rotating shaft 13, the first rotating shaft 13 is equipped with a power fan 14 matching the air chamber 11, the first rotating shaft 13 is equipped with a rotating disk 15, and the rotating disk 15 is provided with a cylinder 16;

[0025] The fan blade 1 is equipped with a second rotating shaft 17, the second rotating shaft 17 is equipped with a rotating rod 18, the rotating rod 18 is provided with a slide groove 19 matching the cylinder 16, the cylinder 16 is equipped with a support frame 20, the second air outlet 9 is connected to a bellows 21, and the bellows 21 is equipped with a jet pipe 22 matching the support frame 20.

[0026] Working principle description:

[0027] The basic function of this device is the same as that of the utility model patent named "A wind turbine blade air-heat deicing device" (application number 202222441680.3). The device heats the air through the heater 2 and then sprays the hot air into the guide strip 4, the hot inlet flow channel 5 and the outlet flow channel 6 through the blower 3 to break the ice, and finally the gas is discharged from the outlet hole 7; it is worth mentioning that when the blower 3 is running, the hot air is discharged from the first air outlet 8 and the second air outlet 9. When the hot air is discharged from the first air outlet 8, the hot air passes through the air inlet pipe 10 and the air chamber 11 in turn and is finally discharged from the air outlet pipe 12, and then the hot air passes through the inlet The hot runner 5 and the outlet flow channel 6 are finally discharged from the air outlet 7. When the hot air passes through the wind chamber 11, the power fan 14 runs and drives the first rotating shaft 13 to rotate. The rotation of the first rotating shaft 13 drives the turntable 15 to rotate, so the cylinder 16 follows the movement. The cylinder 16 moves in the slide groove 19 to make the rotating rod 18 rotate back and forth around the second rotating shaft 17, so the support frame 20 moves back and forth. At the same time, the hot air is discharged from the second air outlet 9 and then sprayed out by the bellows 21. The jet pipe 22 follows the support frame 20 to move back and forth to guide the hot air into each guide strip 4, so as to ensure the de-icing effect of the equipment.

[0028] Preferably, the power fan 14 is sprayed with a coating. Such a structural design reduces the probability of the power fan 14 rusting and being corroded, thereby extending the service life of the equipment.

[0029] Preferably, a rubber cushion is installed on the rotating disk 15. Such a structural design reduces the friction damage to the rotating disk 15 and prolongs the service life of the equipment.

[0030] Preferably, a rubber cushion is installed on the cylinder 16. Such a structural design reduces friction damage to the cylinder 16 and prolongs the service life of the equipment.

[0031] Preferably, a rubber cushion is installed on the chute 19. Such a structural design reduces the friction damage to the chute 19 and prolongs the service life of the equipment.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A wind turbine blade air-heat deicing device, comprising a fan blade (1), a heater (2), a blower (3), a guide strip (4), a hot inlet flow channel (5), an outlet flow channel (6) and an air outlet (7), characterized in that: The blower (3) is provided with a first air outlet (8) and a second air outlet (9); The first air outlet (8) is connected to an air inlet pipe (10), the air inlet pipe (10) is connected to an air chamber (11), the air chamber (11) is equipped with an air outlet pipe (12), the air chamber (11) is equipped with a first rotating shaft (13), the first rotating shaft (13) is equipped with a power fan (14) matching the air chamber (11), the first rotating shaft (13) is equipped with a rotating disk (15), and the rotating disk (15) is provided with a cylinder (16); The fan blade (1) is installed with a second rotating shaft (17), the second rotating shaft (17) is installed with a rotating rod (18), the rotating rod (18) is provided with a slide groove (19) matching the cylinder (16), the cylinder (16) is installed with a support frame (20), the second air outlet (9) is connected with a bellows (21), and the bellows (21) is installed with an air jet pipe (22) matching the support frame (20).

2. The wind turbine blade air-heat deicing device according to claim 1, characterized in that: The power fan (14) is sprayed with a coating.

3. The wind turbine blade air-heat deicing device according to claim 2, characterized in that: The rotating disk (15) is provided with a rubber cushion layer.

4. The wind turbine blade air-heat deicing device according to claim 3, characterized in that: The cylinder (16) is provided with a rubber cushion layer.

5. The wind turbine blade air-heat deicing device according to claim 4, characterized in that: The slide groove (19) is provided with a rubber cushion layer.

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