Deicing device of wind generating set

Abstract

The utility model discloses a deicing device of a wind generating set, which relates to the technical field of deicing devices and comprises blades and an impact component. The blade is internally and fixedly provided with two corresponding supporting frames, the lower end of the interior of the blade is provided with an extrusion assembly and a reset assembly, the extrusion assembly is matched with the reset assembly, and the interior of the blade is provided with a heating assembly and a stirring assembly; the impact assembly comprises connecting blocks, rotating shafts, fixing rings and hammering blocks, the rotating shafts which are uniformly distributed are arranged in the blades, the left end and the right end of each rotating shaft are rotationally connected with two corresponding connecting blocks, all the connecting blocks are fixed in the blades, the fixing rings which are uniformly distributed are fixed on the circumferential surfaces of the rotating shafts, and the hammering blocks are fixed on the fixing rings. And beating blocks are fixed to the circumferential face of the fixing ring and attached to the upper side walls of the interiors of the blades, and ice on the blades of the wind generating set can be rapidly removed.

Description

Technical Field

[0001] The utility model relates to the technical field of deicing devices, in particular to a deicing device for a wind turbine generator set. Background Art

[0002] A wind turbine generator set includes a wind rotor and a generator; the wind rotor contains blades, a hub, and reinforcements; it has the functions of generating electricity by rotating the blades under wind power and rotating the generator head. Wind turbine blades are the core components of wind turbines that convert natural wind energy into electricity for wind turbines, and are also the main basis for measuring the design and technical level of wind turbines. In the cold winter, the existing wind turbine blades have a lot of rain and snow attached to their exterior, which condenses into ice, thereby increasing the weight of the wind turbine blades, reducing the rotation speed of the blades, and affecting the power generation efficiency.

[0003] Currently, deicing can be achieved by arranging electric heating films on the blades to heat the blades. However, when the ice layer is thick, it is necessary to wait for the ice to melt slowly, and it is impossible to quickly remove the ice attached to the blades. For this reason, we propose a deicing device for wind turbines. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a deicing device for a wind turbine generator set, which can quickly remove ice on the blades of the wind turbine generator set and effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deicing device for a wind turbine generator set, comprising a blade and an impact assembly;

[0006] Blade: Two corresponding support frames are fixed inside, and the lower end of the blade is installed with an extrusion component and a reset component, the extrusion component and the reset component cooperate with each other, and a heating component and a toggle component are installed inside the blade;

[0007] Impact assembly: comprises a connecting block, a rotating shaft, a fixing ring and a hammering block. The inside of the blade is provided with an evenly distributed rotating shaft. The left and right ends of the rotating shaft are rotatably connected with two corresponding connecting blocks. All the connecting blocks are fixed inside the blade. The circumferential surface of the rotating shaft is fixed with an evenly distributed fixing ring. The circumferential surface of the fixing ring is fixed with a hammering block. The hammering block is fitted with the upper side wall inside the blade. The blade is impacted by setting the impact assembly.

[0008] Furthermore, the toggle assembly includes a gear ring, a rack and a limit bar. Two corresponding limit bars are fixed to the rear side of the inside of the blade. A rack is slidably connected between the two limit bars. A gear ring is fixed on the circumferential surface of the rotating shaft. All gear rings are meshed with the rack. All rotating shafts are moved by setting the toggle assembly.

[0009] Furthermore, the reset component includes a connecting frame and a spring. The lower side of the interior of the blade is slidably connected to the connecting frame, and the connecting frame is fixed to the lower side of the rack. Two corresponding springs are fixed to the lower side of the connecting frame, and the lower ends of the two springs are fixed to the lower side of the interior of the blade. The rack is reset by setting the reset component.

[0010] Furthermore, the extrusion assembly includes a motor and a cam. The motor is installed on the upper side of the inside of the blade. The cam is fixed on the output shaft of the motor. The cam is located inside the connecting frame. The input end of the motor is electrically connected to the output end of the external PLC controller. The connecting frame is extruded by setting the extrusion assembly.

[0011] Furthermore, the heating component includes an electric heating strip and a temperature sensor. Four corresponding electric heating strips are installed on the front and rear sides of the inside of the blade. A temperature sensor is installed inside the blade. The temperature sensor is bidirectionally electrically connected to an external PLC controller. The input end of the electric heating strip is electrically connected to the output end of the external PLC controller. The inside of the blade is heated by setting up the heating component.

[0012] Furthermore, three corresponding strip grooves are provided on the upper and lower sides of the interior of the blade, and beating plates are fixed inside the strip grooves. All the beating plates correspond to all the beating blocks respectively. By setting the beating plates, it is possible to effectively prevent the beating blocks from damaging the blades.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the deicing device of the wind turbine generator set has the following advantages:

[0014] By setting up a heating component, when ice appears on the surface of the blade, all the electric heating strips can be started to heat all the blades. After heating, the ice layer melts and becomes loose. At this time, the extrusion component is started to make the rack reciprocate up and down, thereby moving all the gear rings. The movement of all the gear rings drives all the rotating shafts to reciprocate back and forth. The reciprocating rotation of the rotating shafts drives all the hammering blocks to swing back and forth and hit the front and back sides of the inside of the blades. In this case, the blades can vibrate, and the vibration of the blades can make the loosened ice layer fall off quickly, thereby quickly removing the ice. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the heating component of the utility model;

[0017] Figure 3 This is an enlarged view of point A of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the cam of the utility model.

[0019] In the figure: 1 blade, 2 impact assembly, 21 connecting block, 22 rotating shaft, 23 fixing ring, 24 hammering block, 3 toggle assembly, 31 gear ring, 32 rack, 33 limit strip, 4 extrusion assembly, 41 motor, 42 cam, 5 heating assembly, 51 electric heating strip, 52 temperature sensor, 6 reset assembly, 61 connecting frame, 62 spring, 7 hammering plate, 8 support frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 ,This embodiment provides a technical solution: a deicing device for a wind turbine generator set, comprising a blade 1 and an impact assembly 2;

[0022] Blade 1: Two corresponding support frames 8 are fixed inside, and an extrusion component 4 and a reset component 6 are installed at the lower end of the inside of the blade 1. The extrusion component 4 and the reset component 6 cooperate with each other. A heating component 5 and a toggle component 3 are installed inside the blade 1. The toggle component 3 includes a gear ring 31, a rack 32 and a limit bar 33. Two corresponding limit bars 33 are fixed on the rear side of the inside of the blade 1. The rack 32 is slidably connected between the two limit bars 33. A gear ring 31 is fixed on the circumferential surface of the rotating shaft 22. All gear rings 31 are meshed with the rack 32. The reset component 6 includes a connecting frame 61 and a spring 62. The lower side of the inside of the blade 1 is slidably connected with the connecting frame 61. The connecting frame 61 is fixed to the lower side of the rack 32. Two corresponding springs 62 are fixed to the lower side of the connecting frame 61. The lower ends of the two springs 62 are fixed to the lower side of the inside of the blade 1. The pressing component 4 includes a motor 41 and a cam 42. The motor 41 is installed on the upper side of the inside of the blade 1. The cam 42 is fixed on the output shaft of the motor 41. The cam 42 is located inside the connecting frame 61. The input end of the motor 41 is electrically connected to the output end of the external PLC controller. The heating component 5 includes an electric heating strip 51 and a temperature sensor 52. Four corresponding electric heating strips 51 are installed on the front and back sides of the inside of the blade 1. The temperature sensor 52 is installed inside the blade 1. The temperature sensor 52 is bidirectionally electrically connected to the external PLC controller. The input end of the electric heating strip 51 is electrically connected to the output end of the external PLC controller. The inside of the blade 1 is heated by setting the heating component 5, the connecting frame 61 is squeezed by setting the pressing component 4, the rack 32 is reset by setting the reset component 6, and all the rotating shafts 22 are moved by setting the toggle component 3.

[0023] Impact component 2: includes a connecting block 21, a rotating shaft 22, a fixing ring 23 and a hammering block 24. The inside of the blade 1 is provided with an evenly distributed rotating shaft 22. The left and right ends of the rotating shaft 22 are rotatably connected with two corresponding connecting blocks 21. All the connecting blocks 21 are fixed inside the blade 1. The circumferential surface of the rotating shaft 22 is fixed with an evenly distributed fixing ring 23. The circumferential surface of the fixing ring 23 is fixed with a hammering block 24. The hammering block 24 is fitted with the upper side wall inside the blade 1. The blade 1 is impacted by setting the impact component 2.

[0024] Among them: three corresponding strip grooves are opened on the upper and lower sides inside the blade 1, and hammering plates 7 are fixed inside the strip grooves. All hammering plates 7 correspond to all hammering blocks 24 respectively. By setting the hammering plates 7, the hammering blocks 24 can effectively prevent damage to the blade 1.

[0025] The de-icing device of a wind turbine generator set provided by the utility model works as follows: when ice appears on the surface of the blade 1, all the electric heating strips 51 can be started to heat all the blades 1. After heating, the ice layer melts and becomes loose. At this time, the motor 41 is started to rotate the cam 42. During the rotation of the cam 42, when its raised part is in contact with the lower side of the inside of the connecting frame 61, it will squeeze the connecting frame 61 to move downward. When the raised part of the cam 42 is away from the lower side of the inside of the connecting frame 61, the connecting frame 61 will move upward under the action of two springs 62. The cam 42 is continuously rotated to make the connecting frame 61 reciprocate up and down. The reciprocating up and down movement of the connecting frame 61 drives the rack 32 to reciprocate up and down, thereby moving all the gear rings 31. The movement of all the gear rings 31 drives all the rotating shafts 22 to rotate back and forth. The reciprocating back and forth rotation of the rotating shaft 22 drives all the hammering blocks 24 to swing back and forth and hit the front and back sides of the inside of the blade 1. In this case, the blade 1 can vibrate, and the vibration of the blade 1 can make the loosened ice layer fall off quickly, thereby quickly removing the ice.

[0026] It is worth noting that the external PLC controller disclosed in the above embodiment is specifically a Siemens S7-200 model, the motor 41 can be a 1LE0003 three-phase asynchronous motor, the heating strip 51 can be a 10mm electric heating sheet, the temperature sensor 52 can be a LSCI-TZ03 laser focusing infrared temperature sensor, and the external PLC controller controls the motor 41 and the heating strip 51 using methods commonly used in the prior art.

[0027] 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 deicing device for a wind turbine generator set, characterized in that: It comprises a blade (1) and an impact assembly (2); The blade (1) has two corresponding support frames (8) fixed inside, and an extrusion component (4) and a reset component (6) are installed at the lower end inside the blade (1). The extrusion component (4) and the reset component (6) cooperate with each other, and a heating component (5) and a toggle component (3) are installed inside the blade (1); The impact assembly (2) comprises a connecting block (21), a rotating shaft (22), a fixing ring (23) and a hammering block (24). The blade (1) is provided with evenly distributed rotating shafts (22). The left and right ends of the rotating shaft (22) are rotatably connected to two corresponding connecting blocks (21). All the connecting blocks (21) are fixed inside the blade (1). Evenly distributed fixing rings (23) are fixed on the circumferential surface of the rotating shaft (22). The hammering block (24) is fixed on the circumferential surface of the fixing ring (23). The hammering block (24) is fitted with the upper side wall inside the blade (1).

2. A deicing device for a wind turbine generator set according to claim 1, characterized in that: The toggle assembly (3) comprises a gear ring (31), a rack (32) and a limit bar (33); two corresponding limit bars (33) are fixed to the rear side of the interior of the blade (1); a rack (32) is slidably connected between the two limit bars (33); a gear ring (31) is fixed on the circumferential surface of the rotating shaft (22); and all the gear rings (31) are meshed with the rack (32).

3. A deicing device for a wind turbine generator set according to claim 2, characterized in that: The reset assembly (6) comprises a connecting frame (61) and a spring (62); the lower side of the interior of the blade (1) is slidably connected to the connecting frame (61); the connecting frame (61) is fixed to the lower side of the rack (32); two corresponding springs (62) are fixed to the lower side of the connecting frame (61); the lower ends of the two springs (62) are fixed to the lower side of the interior of the blade (1).

4. A deicing device for a wind turbine generator set according to claim 3, characterized in that: The extrusion assembly (4) comprises a motor (41) and a cam (42); the motor (41) is mounted on the upper side of the interior of the blade (1); the cam (42) is fixed on the output shaft of the motor (41); the cam (42) is located inside the connecting frame (61); and the input end of the motor (41) is electrically connected to the output end of an external PLC controller.

5. The deicing device for a wind turbine generator set according to claim 1, characterized in that: The heating component (5) comprises an electric heating strip (51) and a temperature sensor (52); four corresponding electric heating strips (51) are installed on the front and rear sides of the interior of the blade (1); a temperature sensor (52) is installed inside the blade (1); the temperature sensor (52) is bidirectionally electrically connected to an external PLC controller; the input end of the electric heating strip (51) is electrically connected to the output end of the external PLC controller.

6. The deicing device for a wind turbine generator set according to claim 1, characterized in that: Three corresponding strip grooves are provided on both upper and lower sides of the interior of the blade (1), and a beating plate (7) is fixed inside the strip groove, and all the beating plates (7) correspond to all the beating blocks (24) respectively.

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