Tower drum door structure of wind turbine generator and wind turbine generator

Abstract

The utility model discloses a tower drum door structure of a wind turbine generator and the wind turbine generator. The tower drum door structure comprises a door frame, a frame and a roller shutter door device. The door frame is mounted in a tower drum door opening; the frame is fixedly connected to the door frame and comprises two side edges extending in the axis direction of the tower drum and an arc top extending from the top ends of the two side edges along the inner side contour of the upper portion of the door frame, and the two side edges are each provided with a guide rail; the roller shutter door device comprises a shell, a reel, a motor and a roller shutter door, the two ends of the shell are connected to the two side edges of the frame respectively, the reel and the motor are arranged in the shell, and one end of the roller shutter door is fixedly connected with the reel, so that the roller shutter door can be opened or closed around the reel along the guide rails. According to the tower drum door structure, the roller shutter door is opened and closed in the plane where the door plate is located, the situation that opening or closing is difficult due to the wind pressure effect can be avoided, and operation is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a tower door structure of a wind turbine set and a wind turbine set. Background Art

[0002] The tower of a wind turbine is a key component that supports the nacelle and blades of a wind turbine. The tower door is located at the bottom of the tower and is an important passage for maintenance operators to enter the tower. The tower door opening is a weak point in the tower. In order to achieve safe operation of the wind turbine, the tower door is generally set in a direction perpendicular to the main wind direction. However, this will cause the tower door to be difficult to open due to wind pressure when it is needed. Therefore, it is necessary to design a tower door system that is less affected by wind pressure and is easy to open. Utility Model Content

[0003] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the utility model provides a tower door structure of a wind turbine generator set, comprising:

[0005] A door frame, wherein the door frame is installed in the door opening of the tower;

[0006] A frame, the frame is fixedly connected to the door frame, the frame comprises two side edges extending along the axial direction of the tower and an arc top extending from the top ends of the two side edges along the inner contour of the upper portion of the door frame, and the two side edges are respectively provided with guide rails;

[0007] A rolling door device, the rolling door device includes a shell, a roller, a motor and a rolling door, the two ends of the shell are respectively connected to the two sides of the frame, the roller and the motor are arranged in the shell, and one end of the rolling door is fixedly connected to the roller, so that the rolling door can be opened or closed around the roller along the guide rail.

[0008] Furthermore, the tower door structure also includes an air inlet arranged above the rolling door device.

[0009] Furthermore, the air inlet is a shutter structure formed by the arc top and a plurality of strips fixedly connected to the inner side of the arc top.

[0010] Furthermore, the tower door structure further includes a fixing plate disposed below the rolling door device, wherein the fixing plate is configured to match an inner profile of a lower portion of the door frame and is fixedly connected to the door frame.

[0011] Furthermore, the fixing plate is provided with an air outlet.

[0012] Furthermore, the tower door structure also includes a rain shield installed on the door frame.

[0013] Furthermore, the rain shield is a channel steel connected to the door frame by bolts.

[0014] Furthermore, a wind-resistant hook suitable for connecting with the side of the rolling door is provided in the guide rail.

[0015] In addition, the utility model also provides a wind turbine set, which includes the tower door structure.

[0016] The rolling door of the tower door structure of the wind turbine set of the utility model is opened and closed within the plane where the door panel is located, which can avoid the difficulty of opening or closing due to wind pressure, and is convenient for on-site operation and maintenance personnel to perform maintenance operations on the set. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the device and principle of the present invention. In the drawings,

[0018] Figure 1 The present invention is a schematic diagram of the structure of a tower door of a wind turbine generator set according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0020] In order to thoroughly understand the present invention, a detailed structure will be presented in the following description to illustrate the present invention. Obviously, the implementation of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments and should not be interpreted as being limited to the embodiments presented here.

[0021] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention. The singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0022] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0023] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present invention and are not intended to limit the present invention.

[0024] The utility model provides a tower door structure of a wind turbine. Figure 1 As shown, the tower door structure includes a door frame 1, a frame 2 and a rolling door device 3. The door frame 1 is installed in the tower door opening; the frame 2 is fixedly connected to the door frame 1, and the frame 2 includes two side edges 21 extending along the tower axis direction and an arc top 22 extending from the top of the two side edges 21 along the inner contour of the upper part of the door frame 1, and the two side edges 21 are respectively provided with guide rails; the rolling door device 3 includes a shell 31, a reel, a motor and a rolling door 32, and the two ends of the shell 31 are respectively connected to the two sides of the frame 2, the reel and the motor are arranged in the shell 31, and one end of the rolling door 32 is fixedly connected to the reel, so that the rolling door 32 can be opened or closed along the guide rail around the reel. Specifically, the frame 2 can be an angle steel plate structure integrally welded to the inner contour of the door frame 1.

[0025] The rolling door of the tower door structure of the utility model is opened and closed within the plane where the door panel is located, which can avoid the difficulty of opening or closing due to wind pressure. In addition, the rolling door device is driven by a motor and can be remotely switched on and off, making the operation more convenient. In addition, the rolling door device can be provided with a manual rocker, so that when a power outage occurs, the rolling door can be quickly opened by hand. Preferably, a wind-resistant hook suitable for connecting to the side of the rolling door is provided in the guide rail to ensure that the rolling door panel does not separate from the guide rail in the case of strong winds.

[0026] According to an embodiment of the present utility model, the tower door structure further includes an air inlet disposed above the rolling door device 3. Preferably, the air inlet is a shutter structure 4 formed by the arc top 22 of the frame 2 and a plurality of strips fixedly connected to the arc top 22. Specifically, a plurality of strips of different lengths are respectively welded to the inner side wall of the arc top 22 at appropriate intervals to form an integral frame structure with shutters, so as to facilitate the overall installation operation of the tower door structure.

[0027] According to the implementation mode of the utility model, the tower door structure also includes a fixed plate 5 arranged below the rolling door device 3, the fixed plate 5 is configured to match the inner profile of the lower part of the door frame 1 and is fixedly connected to the door frame 1, and the fixed plate 5 is provided with an air outlet. Specifically, the fixed plate 5 is located below the platform 8 at the bottom of the tower, and the axial flow fan 6 arranged in the space below the platform is connected to the fixed plate 5 and the air outlet of the fixed plate 5 is used as the air outlet of the axial flow fan. The platform 8 at the bottom of the tower is equipped with heat generating unit equipment such as a frequency converter. The heat generated by these unit equipment during the operation of the unit is discharged to the outside of the tower by the axial flow fan 5 through the conveying pipeline running through the platform 8 at the bottom of the tower, and the outside air enters the space above the platform in the tower from the shutter structure 4 to dissipate heat and cool the heat generating unit equipment. Therefore, in addition to being easier to open and close, the tower door structure of the utility model can also better meet the ventilation and heat dissipation requirements of the unit equipment in the tower.

[0028] According to an embodiment of the utility model, the tower door structure further comprises a rain shield 7 mounted on the door frame 1. Preferably, the rain shield 7 is a channel steel connected to the door frame 1 by bolts. Using a channel steel with an upward notch and two ends bent downward as a rain shield is conducive to guiding rainwater from both ends to avoid the rolling door area.

[0029] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "parts" and "pieces" appearing in this article may represent either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing in this article may represent either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0030] The utility model has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalent scope.

Claims

1. A tower door structure of a wind turbine generator set, characterized in that: include: A door frame, wherein the door frame is installed in the door opening of the tower; A frame, the frame is fixedly connected to the door frame, the frame comprises two side edges extending along the axial direction of the tower and an arc top extending from the top ends of the two side edges along the inner contour of the upper portion of the door frame, and the two side edges are respectively provided with guide rails; A rolling door device, the rolling door device includes a shell, a roller, a motor and a rolling door, the two ends of the shell are respectively connected to the two sides of the frame, the roller and the motor are arranged in the shell, and one end of the rolling door is fixedly connected to the roller, so that the rolling door can be opened or closed around the roller along the guide rail.

2. The tower door structure according to claim 1, characterized in that: The tower door structure also includes an air inlet arranged above the rolling door device.

3. The tower door structure according to claim 2, characterized in that: The air inlet is a shutter structure formed by the arc top and a plurality of strips fixedly connected to the inner side of the arc top.

4. The tower door structure according to claim 1, characterized in that: The tower door structure further includes a fixing plate disposed below the rolling door device, wherein the fixing plate is configured to match an inner profile of a lower portion of the door frame and is fixedly connected to the door frame.

5. The tower door structure according to claim 4, characterized in that: The fixing plate is provided with an air outlet.

6. The tower door structure according to claim 1, characterized in that: The tower door structure also includes a rain shield installed on the door frame.

7. The tower door structure according to claim 6, characterized in that: The rain shield is a channel steel connected to the door frame by bolts.

8. The tower door structure according to any one of claims 1 to 7, characterized in that: A wind-resistant hook suitable for connecting with the side of the rolling door is arranged in the guide rail.

9. A wind turbine generator set, characterized in that: The wind turbine generator set comprises a tower door structure as described in any one of claims 1-8.

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