CN220909913U

CN220909913U - Deicing mechanism for blades of wind driven generator

Info

Publication number: CN220909913U
Application number: CN202322646959.XU
Authority: CN
Inventors: 朱元超; 杨晓博; 韩艳杰; 贾宁波; 刘柏纯; 南国霆; 王孜硕; 李妍然
Original assignee: Datang Henan Cleaning Energy Co ltd
Current assignee: Datang Henan Cleaning Energy Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-05-07
Anticipated expiration: 2033-09-28

Abstract

The utility model provides a deicing mechanism for wind driven generator blades, which belongs to the technical field of deicing of wind driven generator blades and comprises a hot air blower fixedly connected with a cylinder, wherein a heat distribution disc is arranged on a generator rotating disc, a heat outlet pipe matched with the generator blades is fixedly connected to the outer side of the heat distribution disc, a guide strip is fixedly connected to the generator blades, the position of the heat outlet pipe corresponds to the position of the guide strip, and one end of the hot air blower is fixedly connected with a heat transmission pipe communicated with the heat distribution disc. According to the blade deicing mechanism of the wind driven generator, hot air can be blown to the surface of the blade through the cooperation among the hot air blower, the heat transmission pipe, the heat distribution plate and the heat output pipe, so that ice on the surface of the blade is melted and falls off, and the influence of ice attached to the surface of the blade on the operation of the wind driven generator is reduced.

Description

Deicing mechanism for blades of wind driven generator

Technical Field

The utility model belongs to the technical field of deicing of wind driven generator blades, and particularly relates to a deicing mechanism for wind driven generator blades.

Background

The wind driven generator is power equipment for converting wind energy into mechanical work, wherein the mechanical work drives a rotor to rotate, and finally, alternating current is output; the wind driven generator generally comprises wind wheels, generators (including devices), steering gears (tail wings), towers, speed-limiting safety mechanisms, energy storage devices and other components, is commonly used in areas with developed wind energy sources, has a relatively simple working principle, rotates under the action of wind force, converts kinetic energy of wind into mechanical energy of wind wheel shafts, and rotates to generate electricity under the driving of the wind wheel shafts.

When the weather is colder, the surfaces of the blades of the wind driven generator are easy to freeze, and the frozen blades can increase the surface roughness and change the aerodynamic characteristics of the blades, so that the wind energy conversion efficiency is reduced; the weight of the frozen blades is increased, so that the inertial load of the fan during rotation is increased, the starting wind speed of the fan is increased, the power generation capacity of the fan is reduced, and the designed power generation capacity cannot be achieved; icing blades may cause the fan to lose balance, increase operational instability of the fan, and even cause failure, tilting, or collapse of the fan. There is therefore a need for a wind turbine blade de-icing mechanism that addresses the above-described problems.

Disclosure of utility model

The utility model aims to provide a deicing mechanism for blades of a wind driven generator, and aims to solve the problem that the blades of the wind driven generator are easy to freeze in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a wind-driven generator blade deicing mechanism, includes the air heater with cylinder fixed connection, install on the generator rotor disc and divide the hot disc, divide the outside fixedly connected with of hot disc and the play heat pipe of generator blade looks adaptation, fixedly connected with guide bar on the generator blade, the position of going out the heat pipe corresponds with the guide bar position, the one end fixedly connected with of air heater is linked together with the heat pipe that divides the hot disc.

In one preferable aspect of the utility model, the plurality of heat-discharging pipes are symmetrically distributed on two sides of the generator blade.

As one preferable mode of the utility model, the outer walls of the two sides of the generator blade are fixedly connected with a plurality of guide strips, and an air channel is formed between two adjacent guide strips.

As one preferable mode of the utility model, the outer walls of the two sides of the generator blade are fixedly connected with a wind shielding frame, and a plurality of wind outlet holes corresponding to the wind channels are formed in the wind shielding frame.

As one preferable mode of the utility model, the heat transmission pipe, the heat distribution plate and the heat outlet pipe are all made of heat insulation materials.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the blade deicing mechanism of the wind driven generator, hot air can be blown to the surface of the blade through the cooperation among the hot air blower, the heat transmission pipe, the heat distribution plate and the heat output pipe, so that ice on the surface of the blade is melted and falls off, and the influence of ice attached to the surface of the blade on the operation of the wind driven generator is reduced.

2. According to the blade deicing mechanism of the wind driven generator, through the cooperation between the wind shielding frame and the guide strip, hot air blown out by the heat pipe is more concentrated, so that the hot air can flow along the surface of the blade, and deicing efficiency is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

Fig. 4 is a schematic structural view of a windshield frame according to the present utility model.

In the figure: 1. an air heater; 2. a heat transfer pipe; 3. a heat distribution plate; 4. a heat pipe; 5. a wind shielding frame; 6. a guide bar; 7. and an air outlet hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, the present utility model provides the following technical solutions: the utility model provides a aerogenerator blade deicing mechanism, includes with cylinder fixed connection's air heater 1, installs on the generator rolling disc and divides hot disc 3, divides the outside fixedly connected with of hot disc 3 and the play heat pipe 4 of generator blade looks adaptation, fixedly connected with guide bar 6 on the generator blade, the position of going out heat pipe 4 corresponds with guide bar 6 position, the one end fixedly connected with of air heater 1 is with divide hot disc 3 to be linked together's heat pipe 2.

In the specific embodiment of the utility model, when the surface of the blade of the wind driven generator is frozen, the hot air blower 1 is started, hot air generated by the hot air blower 1 enters the heat distribution plate 3 through the heat transmission pipe 2, the heat distribution plate 3 uniformly transmits heat to the heat output pipe 4, and finally, the hot air is blown to the outer wall of the blade through the heat output pipe 4, so that the ice on the surface of the blade is melted and falls off, and the influence of the ice attached to the surface of the blade on the operation of the wind driven generator is reduced.

Specifically, the number of the heat-discharging pipes 4 is plural, and the plurality of the heat-discharging pipes 4 are symmetrically distributed on two sides of the generator blade.

In this embodiment: through all setting up out heat pipe 4 in the both sides of generator blade, can make hot-blast both sides that flow towards the generator blade simultaneously to improve deicing efficiency.

Specifically, the outer walls of two sides of the generator blade are fixedly connected with a plurality of guide strips 6, and an air channel is formed between two adjacent guide strips 6.

In this embodiment: the guide strip 6 is utilized to form an air channel on the surface of the generator blade, so that hot air can flow to the tail end of the blade along the air channel, and a good deicing effect is achieved.

Specifically, the outer walls of the two sides of the generator blade are fixedly connected with a wind shielding frame 5, and a plurality of wind outlet holes 7 corresponding to the wind channels are formed in the wind shielding frame 5.

In this embodiment: . The wind frame 5 can collect the wind that the heat pipe 4 blown out, and the hot-blast wind that gathers can get into the wind channel through the apopore 7 to flow at the blade outer wall, through the cooperation between frame 5 and the gib block 6 of keeping out the wind, make the hot-blast more concentrated that the heat pipe 4 blown out, make hot-blast can flow along the blade surface, be favorable to improving deicing efficiency.

Specifically, the heat transfer pipe 2, the heat distribution plate 3 and the heat outlet pipe 4 are all made of heat insulation materials.

In this embodiment: by arranging the heat transmission pipe 2, the heat distribution plate 3 and the heat output pipe 4 which are made of heat insulation materials, the heat loss of hot air in the transmission process can be reduced.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a aerogenerator blade deicing mechanism, includes air heater (1) with cylinder fixed connection, its characterized in that: the heat distribution plate (3) is arranged on the generator rotating plate, the heat outlet pipe (4) matched with the generator blade is fixedly connected to the outer side of the heat distribution plate (3), the guide strip (6) is fixedly connected to the generator blade, the position of the heat outlet pipe (4) corresponds to the position of the guide strip (6), and the heat transmission pipe (2) communicated with the heat distribution plate (3) is fixedly connected to one end of the air heater (1).

2. A wind turbine blade de-icing mechanism as claimed in claim 1, wherein: the heat pipes (4) are multiple, and the heat pipes (4) are symmetrically distributed on two sides of the generator blade.

3. A wind turbine blade de-icing mechanism as claimed in claim 2, wherein: the outer walls of two sides of the generator blade are fixedly connected with a plurality of guide strips (6), and an air channel is formed between two adjacent guide strips (6).

4. A wind turbine blade de-icing mechanism according to claim 3, wherein: the wind shielding frames (5) are fixedly connected to the outer walls of the two sides of the generator blades, and a plurality of wind outlet holes (7) corresponding to the wind channels are formed in the wind shielding frames (5).

5. A wind turbine blade de-icing mechanism as claimed in claim 4, wherein: the heat transfer pipe (2), the heat distribution plate (3) and the heat outlet pipe (4) are all made of heat insulation materials.