CN219549043U

CN219549043U - Blade heating system of wind driven generator

Info

Publication number: CN219549043U
Application number: CN202320879673.3U
Authority: CN
Inventors: 刘旭; 侯啸龙; 魏纪文
Original assignee: Huaneng Guangxi Clean Energy Co ltd
Current assignee: Huaneng Guangxi Clean Energy Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-08-18
Anticipated expiration: 2033-04-19

Abstract

The utility model relates to a blade heating system of a wind driven generator. The blade-mounted air conditioner comprises a plurality of heating modules arranged on the inner sides of blades and a main control system electrically connected with the heating modules, wherein the heating modules are arranged on the inner sides of the blades and close to the front edges. The heating modules are arranged in parallel, so that the heating modules can be controlled independently. The automatic start-stop module can automatically start and stop the heating module according to actual conditions. The overheat power-off module and the overcurrent power-off module can protect a connecting line in the main control system.

Description

Blade heating system of wind driven generator

Technical Field

The utility model relates to a blade heating system of a wind driven generator.

Background

The existing wind generating set blade is easy to congeal in winter cold and damp, so that the set is stopped, and wind power resources are wasted.

The prior art CN202123153496.0 discloses a wind driven generator blade heating control system, which comprises a blade heating main control system, a blade control box, a main shaft slip ring and a blade heater, wherein the blade heating main control system and the blade control box are electrically connected through the main shaft slip ring, the blade control box and the blade heater are three, and one blade control box controls one blade heater. The utility model adopts distributed installation by a control technology of thermal deicing, and is used when the space of a blade hub or even a cabin is too compact to provide a complete control system installation space.

The prior art CN202111525036.8 discloses a wind driven generator blade heating control system and a method, wherein the wind driven generator blade heating control system comprises a blade heating main control system, a blade control box, a main shaft slip ring and a blade heater, wherein the blade heating main control system and the blade control box are electrically connected through the main shaft slip ring, three blade control boxes and three blade heaters are arranged, and one blade control box controls one blade heater. The utility model adopts distributed installation by a control technology of thermal deicing, and is used when the space of a blade hub or even a cabin is too compact to provide a complete control system installation space.

By adopting the two modes, the automatic control of temperature detection and heating of the blade cannot be completed.

Disclosure of Invention

The utility model aims to provide a blade temperature detector capable of detecting the temperature of a blade in real time and automatically controlling the heating process of the blade.

The utility model adopts the following technical scheme:

the utility model comprises a plurality of heating modules arranged on the inner side of the blade and a main control system electrically connected with the heating modules, wherein the heating modules are arranged on the inner side of the blade and close to the front edge.

The heating modules are arranged in parallel.

The heating module is provided with the temperature sensor, the temperature sensor is used for collecting real-time temperature of the blade, the temperature sensor corresponds to the heating module one by one, and the temperature sensor is electrically connected with the main control system.

The main control system comprises a power supply module, an automatic start-stop module, an overheat power-off module and an overcurrent power-off module.

The power module is used for providing power for the heating module and is electrically connected with the heating module, the automatic start-stop module, the overheat power-off module and the overcurrent power-off module respectively.

The automatic start-stop module is used for automatically starting and stopping the power supply of the heating module according to the real-time temperature of the blade, the preset starting temperature and the preset closing temperature, and the automatic start-stop module corresponds to the heating module one by one.

The overheat power-off module is used for closing the power supply module when the temperature of a connecting line in the main control system exceeds a preset temperature.

The overcurrent power-off module is used for closing the power supply module when the current of the connecting line in the main control system exceeds the preset current.

The utility model has the following positive effects:

1. the position of the inner side of the blade close to the front edge is the windward side when the blade rotates.

2. The heating modules are arranged in parallel, so that the heating modules can be controlled independently.

3. The automatic start-stop module can automatically start and stop the heating module according to actual conditions.

4. The overheat power-off module and the overcurrent power-off module can protect a connecting line in the main control system.

Drawings

FIG. 1 is a topology of the present utility model;

FIG. 2 is a topology of a master control system of the present utility model;

FIG. 3 is a functional schematic of the overheat power-off module according to the present utility model;

fig. 4 is a functional schematic diagram of an overcurrent power-off module according to the present utility model.

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. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. 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.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

Example 1

As shown in fig. 1-4, the utility model comprises a plurality of heating modules arranged on the inner side of the blade and a main control system electrically connected with the heating modules, wherein the heating modules are arranged on the inner side of the blade and near the front edge. The position of the inner side of the blade close to the front edge is the windward side when the blade rotates.

The heating modules are arranged in parallel. The heating module can be conveniently and independently controlled.

The automatic start-stop module is used for automatically starting and stopping the power supply of the heating module according to the real-time temperature of the blade, the preset starting temperature and the preset closing temperature, and the automatic start-stop module corresponds to the heating module one by one. The automatic start-stop module can automatically start and stop the heating module according to actual conditions.

Example 2

As shown in fig. 1 to 4, according to embodiment 1, the overheat power-off module of the present utility model is used to turn off the power module when the temperature of the connection line in the main control system exceeds the preset temperature.

Example 3

As shown in fig. 1 to 4, according to embodiment 1 and embodiment 2, the over-current power-off module of the present utility model is used for turning off the power module when the current of the connection line in the main control system exceeds the preset current. The overheat power-off module and the overcurrent power-off module can protect a connecting line in the main control system.

At present, the technical scheme of the utility model has been subjected to pilot-scale experiments, namely small-scale experiments of products before large-scale mass production; after the pilot test is completed, the use investigation of the user is performed in a small range, and the investigation result shows that the user satisfaction is higher; now, the preparation of the formal production of the product for industrialization (including intellectual property risk early warning investigation) is started.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A wind turbine blade heating system, characterized in that: the blade-mounted air conditioner comprises a plurality of heating modules arranged on the inner sides of blades and a main control system electrically connected with the heating modules, wherein the heating modules are arranged on the inner sides of the blades and close to the front edges.

2. A wind turbine blade heating system according to claim 1, wherein: the heating modules are arranged in parallel.

3. A wind turbine blade heating system according to claim 2, wherein: the heating module is provided with a temperature sensor, the temperature sensor is used for collecting real-time temperature of the blade, the temperature sensor corresponds to the heating module one by one, and the temperature sensor is electrically connected with the main control system.

4. A wind turbine blade heating system according to claim 3, wherein: the main control system comprises a power supply module, an automatic start-stop module, an overheat power-off module and an overcurrent power-off module.

5. A wind turbine blade heating system as claimed in claim 4, wherein: the power module is used for providing power for the heating module, and is electrically connected with the heating module, the automatic start-stop module, the overheat power-off module and the overcurrent power-off module respectively.

6. A wind turbine blade heating system according to claim 5, wherein: the automatic start-stop module is used for automatically starting and stopping the power supply of the heating module according to the real-time temperature of the blade, the preset starting temperature and the preset closing temperature, and the automatic start-stop module corresponds to the heating module one by one.

7. A wind turbine blade heating system as claimed in claim 6, wherein: the overheat power-off module is used for closing the power supply module when the temperature of a connecting line in the main control system exceeds a preset temperature.

8. A wind turbine blade heating system as claimed in claim 7, wherein: the overcurrent power-off module is used for closing the power supply module when the current of the connecting line in the main control system exceeds the preset current.