CN213981072U

CN213981072U - Wind driven generator with deicing system

Info

Publication number: CN213981072U
Application number: CN202022573108.3U
Authority: CN
Inventors: 李云鹏; 安达; 刘洋; 马云龙; 韩健; 姚振环; 刘岩
Original assignee: Huaneng Tongliao Wind Power Co Ltd
Current assignee: Huaneng Tongliao Wind Power Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-08-17
Anticipated expiration: 2030-11-09

Abstract

The utility model relates to the technical field of deicing of blades of wind turbine generators, and discloses a wind driven generator with a deicing system, which comprises a stand column and an impeller consisting of a plurality of blades, and comprises a first hot melting part and a second hot melting part which are arranged on the stand column; the first hot melting part comprises an air heater, and an air outlet of the air heater faces to the middle of the impeller; the second hot melting part is a hot melting pipeline device which comprises an injection pipe, a medium input interface and a connecting pipe for communicating the injection pipe with the medium input interface; the spraying range of the spraying pipe is located in the rotating range of the blade. Compared with the prior art, the utility model discloses a take aerogenerator of deicing system passes through the ice-melt scheme of air heater and hot melt piping installation, has solved the problem that the blade freezes among the prior art, has obtained the ice-melt effect that the practicality is stronger.

Description

Wind driven generator with deicing system

Technical Field

The utility model relates to a technical field of wind turbine generator system blade deicing especially relates to a take aerogenerator of deicing system.

Background

Wind turbine blades may form ice in cold and high humidity climates, particularly where the blade tip to center ice layer affects blade aerodynamics and may cause increased blade vibration and loading, all of which may reduce the output of the wind turbine and affect the efficiency of the power generation. More severe icing can result in excessive loads and cause the turbine to shut down, and also a significant layer of ice is thrown off the blades causing safety problems.

Disclosure of Invention

The embodiment of the utility model provides a take aerogenerator of deicing system can solve the fatigue and the shut down problem that the unit blade leads to because of freezing effectively.

In order to achieve the above object, an embodiment of the present invention provides a wind turbine with a deicing system, which includes a stand column and an impeller composed of a plurality of blades, and includes a first hot melting portion and a second hot melting portion both disposed on the stand column;

the first hot melting part comprises an air heater, and an air outlet of the air heater faces to the middle of the impeller;

the second hot melting part is a hot melting pipeline device which comprises an injection pipe, a medium input interface and a connecting pipe for communicating the injection pipe with the medium input interface; the spraying range of the spraying pipe is located in the rotating range of the blade.

Compared with the prior art, the utility model discloses a take aerogenerator of deicing system passes through the ice-melt scheme of air heater and hot melt piping installation, has solved the problem that the blade freezes among the prior art, has obtained the ice-melt effect that the practicality is stronger.

As an improvement of the scheme, the connecting pipe is rotatably connected with the upright post, and the upright post is provided with a forward and reverse rotating motor which drives the connecting pipe to rotate to drive the injection pipe to swing.

As an improvement of the scheme, the connecting pipe is arranged inside the upright post, and the upright post is provided with a movable groove for the projection of the jet pipe and the swing of the jet pipe.

As a modification of the above, the number of the injection pipes is set to 9.

As an improvement of the scheme, the injection pipes are vertically and uniformly distributed on the upright post.

As an improvement of the scheme, the flowing medium of the hot melting pipeline device is hot air.

As an improvement of the scheme, the flowing medium of the hot melting pipeline device is water vapor.

As an improvement of the scheme, the medium input interface is positioned at the bottom of the upright post.

Has the beneficial effects that:

1. the swing arrangement of the connecting pipe enables the spraying pipe to synchronously and uniformly heat and melt the blades, so that the ice melting efficiency of the device can be greatly improved;

2. the medium of the hot melting pipeline device can be steam, so that the ice melting efficiency of the steam is higher;

3. the hot melting pipeline device can be connected with hot air equipment and water vapor equipment, the ice melting efficiency of water vapor is higher, so that the water vapor equipment is connected in advance, after ice blocks are dissolved, the hot air equipment is connected in to blow dry the moisture on the blades, and through the arrangement, the situation that the moisture staying on the surfaces of the blades is frozen again after the water vapor ice melting can be avoided.

Drawings

FIG. 1 is a detailed block diagram of an embodiment of the present invention;

FIG. 2 is a detailed structural diagram of a hot-melt piping device according to an embodiment of the present invention;

fig. 3 is an enlarged view at a in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a specific structural diagram of an embodiment of the present invention, fig. 2 is a specific structural diagram of an embodiment of the present invention, and fig. 3 is an enlarged view of a position a in fig. 2.

A wind driven generator with a deicing system comprises a stand column 1 and an impeller formed by 3 blades 2, and further comprises a first hot melting part and a second hot melting part which are arranged on the stand column 1.

In this embodiment, the first heat-melting portion includes the air heater 3, and the air outlet of the air heater 3 faces the middle of the impeller.

The second hot melting part is a hot melting pipeline device, the hot melting pipeline device comprises an injection pipe 4, a medium input interface 5 and a connecting pipe for communicating the injection pipe 4 with the medium input interface 5, and the injection range of the injection pipe 4 is located in the rotation range of the blade 2.

The blade 2 on the impeller can be frozen under cold and high-humidity weather conditions, particularly the ice layer from the middle part to the tip part of the blade 2 can affect the aerodynamic characteristics of the blade 2 and can cause the blade 2 to increase vibration and load, and the problems can reduce the output power of the wind turbine and affect the power generation efficiency. More severe icing can result in excessive loads and cause turbine shutdown.

Illustratively, when the impeller needs to be deiced, one of the blades 2 on the impeller needs to be adjusted to face the hot air blower 3 and to face the injection pipe 4. And starting the air heater 3, blowing the air heater 3 towards the middle part of the impeller, and heating and melting the ice blocks in the middle part of the impeller at the moment. In addition, the hot melting pipeline device is started synchronously, a hot air output device is externally connected to the medium input interface 5, hot air is conveyed to the injection pipe 4 through the connecting pipe and is finally sprayed onto the blade 2 through the injection pipe 4 to melt ice blocks on the surface of the blade 2, after the ice melting work of the blade 2 is finished, the next blade 2 is continuously operated and adjusted, the next blade 2 is enabled to be opposite to the air heater 3 and opposite to the injection pipe 4, and the operation is circulated until the icing problem of the impeller blade 2 is completely solved.

Preferably, in this embodiment, the connecting pipe is rotatably connected to the upright post 1, and the upright post 1 is provided with a forward/reverse rotation motor for driving the connecting pipe to rotate, so as to drive the injection pipe 4 to swing.

The swing of the connecting pipe enables the injection pipe 4 to synchronously and uniformly heat and melt the blades 2, so that the ice melting efficiency of the device can be greatly improved.

In the present embodiment, the connection pipe is provided inside the column 1, and the column 1 is provided with a movable groove 6 through which the injection pipe 4 protrudes and the injection pipe 4 swings so as not to interfere with the swinging operation of the injection pipe 4. The hidden setting of connecting pipe can play better protection effect to it to can also furthest improve the holistic outward appearance sight of aerogenerator.

More preferably, in order to further improve the overall ice melting efficiency of the device, in this embodiment, 9 injection pipes 4 are provided, and the injection pipes 4 are vertically and uniformly distributed on the upright post 1.

As a modification of the above solution, the media input interface 5 is located at the bottom of the upright 1. Such a position setting can be convenient for the operating personnel to carry out the connection of piping installation to medium input interface 5 department.

Example 2:

it should be noted that the medium of the hot-melting pipeline device is water vapor, and the ice melting efficiency of the water vapor is higher.

Illustratively, when the impeller needs to be deiced, one of the blades 2 on the impeller needs to be adjusted to face the hot air blower 3 and to face the injection pipe 4. And starting the air heater 3, blowing the air heater 3 towards the middle part of the impeller, and heating and melting the ice blocks in the middle part of the impeller at the moment. In addition, the hot melting pipeline device is started synchronously, a steam output device is connected to the medium input interface 5 in an external mode, water vapor is conveyed to the injection pipe 4 through the connecting pipe and finally sprayed onto the blades 2 through the injection pipe 4 to melt ice blocks on the surfaces of the blades 2, after the ice melting work of the blades 2 is finished, the next blade 2 is continuously operated and adjusted, the next blade 2 is made to face the air heater 3 and the injection pipe 4 in an opposite mode, and the operation is conducted in a circulating mode until the icing problem of the impeller blades 2 is completely solved.

Example 3:

it should be noted that the hot-melting pipeline device can be connected to a hot air device and a water vapor device, and the ice melting efficiency of water vapor is higher, so that the water vapor device is connected to the hot air device first, and after ice cubes are dissolved, the water vapor device is connected to blow dry the water on the blade 2.

Illustratively, when the impeller needs to be deiced, one of the blades 2 on the impeller needs to be adjusted to face the hot air blower 3 and to face the injection pipe 4. And starting the air heater 3, blowing the air heater 3 towards the middle part of the impeller, and heating and melting the ice blocks in the middle part of the impeller at the moment. In addition, the hot melting pipeline device is started synchronously, a steam output device is connected to the medium input interface 5 in an external mode, water vapor is conveyed to the injection pipe 4 through the connecting pipe and finally sprayed onto the blade 2 through the injection pipe 4 to melt ice blocks on the surface of the blade 2, after the ice melting work of the blade 2 is finished, a hot air device is connected to the medium input interface 5, the moisture staying on the blade 2 is dried, and at the moment, the ice melting work of the single blade 2 is finished. And continuously operating and adjusting the next blade 2 to enable the next blade 2 to be opposite to the hot air blower 3 and the injection pipe 4, and circularly operating until the problem of icing of the impeller blade 2 is completely solved.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A wind driven generator with a deicing system comprises an upright post and an impeller consisting of a plurality of blades, and is characterized by comprising a first hot melting part and a second hot melting part which are arranged on the upright post;

2. The wind power generator with an ice removing system according to claim 1, wherein the connecting pipe is rotatably connected to the upright post, and the upright post is provided with a forward and reverse rotation motor for driving the connecting pipe to rotate to drive the jet pipe to swing.

3. The wind power generator with an ice removing system according to claim 2, wherein the connection pipe is disposed inside the vertical column, and the vertical column is provided with a movable groove for the protrusion of the injection pipe and the swing of the injection pipe.

4. The wind power generator with an ice removing system according to claim 3, wherein the number of the spray pipes is set to 9.

5. The wind turbine generator with an ice removing system according to claim 4, wherein the spraying pipes are vertically and evenly distributed on the upright post.

6. The wind power generator with an ice removing system according to any one of claims 1 to 5, wherein the flowing medium of the hot melt duct device is hot air.

7. Wind turbine with ice removal system according to any of claims 1 to 5, wherein the flow medium of said hot melt pipe means is water vapour.

8. The wind turbine generator with an ice removal system of claim 1, wherein the media input interface is located at a bottom of the column.