Cabin wall of vertical axis wind turbine

Abstract

A cabin wall of a vertical axis wind turbine is characterized in that the cabin wall comprises a tubular object (1), a top flange plate (2) and a bottom flange plate (3), the bottom flange plate (3) is arranged at the bottom of the tubular object (1), the top flange plate (2) is arranged at the top of the tubular object (1), the tubular object (1) is coaxial with the top flange plate (2) and the bottom flange plate (3), and a hole is formed in the tubular object (1). The invention has the advantage that the large-scale wind wheel of the vertical-axis wind turbine can stably run for a long time.

Description

Technical Field

[0001] This invention relates to the field of wind power engine technology, and in particular to a nacelle bulkhead for a vertical axis wind power engine. Background Technology

[0002] Wind power, as a clean and renewable energy source, has experienced rapid development.

[0003] Currently, the power generation capacity of three-bladed horizontal axis wind turbines has reached 15MW and above, and the nacelle installation height is mostly above 100 meters; the rotor weight of 5MW horizontal axis wind turbines is mostly above 100 tons, the nacelle is mostly above 100 tons, and a single tower section is mostly above 50 tons. The high height and heavy weight determine that the center of gravity of the horizontal axis wind turbine is located high, which causes inconvenience in installation and maintenance, and increases the difficulty and cost of construction.

[0004] Compared to horizontal axis wind turbines, vertical axis wind turbines have a lower nacelle installation height, with blades rotating around a vertical axis, resulting in a lower center of gravity, reduced high-altitude operation requirements for installation and maintenance, and the elimination of the need for a yaw system to adjust the blades for wind alignment. While vertical axis wind turbines offer numerous advantages and theoretical benefits, most current models are small and come in various styles. Large vertical axis wind turbines have not yet been commercialized. The inventors have identified the main reason as the technology of vertical axis wind turbines not yet being adequately addressed. Large-scale construction makes stable operation difficult, and the return on investment cannot yet reach the level of horizontal axis wind turbines. Therefore, further technological advancements in vertical axis wind turbines are needed to ensure stable operation on land, nearshore, and offshore, which remains a pressing engineering challenge. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the difficulty in achieving stable operation of vertical axis wind turbines after they are scaled up, and to provide a nacelle wall for a vertical axis wind turbine.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A nacelle wall for a vertical axis wind turbine is characterized by comprising: a tubular structure (1), a top flange (2), and a bottom flange (3), wherein the bottom of the tubular structure (1) is provided with a bottom flange (3), and the top is provided with a top flange (2), the tubular structure (1) is coaxial with the top flange (2) and the bottom flange (3), and the tubular structure (1) has an opening.

[0008] Book invention The advantages and beneficial effects are:

[0009] 1. It helps vertical axis wind turbines generate power in the megawatt range or above.

[0010] 2. It helps to ensure the long-term stable operation of the wind turbines used in large-scale vertical axis wind turbines. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0012] Figure 1 This is a three-dimensional view of the cabin wall of the present invention. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be preferably described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0015] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if "and / or" or "and / or" appears throughout the text, it includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies solutions A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0016] like Figure 1 As shown,

[0017] Example 1

[0018] A nacelle wall of a vertical axis wind turbine according to one embodiment is characterized by comprising: a tubular structure (1), a top flange (2), and a bottom flange (3), wherein the bottom of the tubular structure (1) is provided with a bottom flange (3), and the top is provided with a top flange (2). The tubular structure (1), the top flange (2), and the bottom flange (3) are coaxial, and the tubular structure (1) has an opening. The tubular structure (1), the bottom flange (3), and the top flange (2) are cast or welded together to form an integral structure.

[0019] The tubular structure (1), bottom flange (3), and top flange (2) are cast or welded together to form an integral structure.

[0020] The tubular object (1) is made of metal with a wall thickness greater than 0.5 cm. It is a hollow cylindrical tube, a hollow frustum tube, or a polygonal tube.

[0021] The bolt holes of the top flange (2) and the bottom flange (3) are one or two turns.

[0022] The connection hole of the bottom flange (3) is located on the inner and / or outer side of the pipe wall of the tubular object (1).

[0023] The connection hole of the top flange (2) is located on the inner and / or outer side of the pipe wall of the tubular object (1).

[0024] The tubular object (1) is equipped with a ladder inside.

[0025] The tubular object (1) has an internal mounting platform.

[0026] The pipe wall at the opening of the tubular object (1) is thickened for protection.

[0027] A door frame and a door are installed on the opening of the tubular object (1).

[0028] The nacelle includes nacelle walls and nacelle cover; the nacelle walls serve as the central pivot of the wind turbine of the vertical axis wind turbine, support the nacelle cover, and prevent horizontal displacement of the wind turbine; the nacelle cover is the hub, serving as the rotating part of the central pivot of the wind turbine.

[0029] The wind turbine, consisting of blades, sits on a railcar, which is connected to a transmission frame, which in turn is connected to the hub.

[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.

Claims

1. A nacelle wall for a vertical axis wind turbine, characterized in that, include: A tubular object (1), a top flange (2), and a bottom flange (3), wherein the bottom of the tubular object (1) is provided with a bottom flange (3) and the top is provided with a top flange (2). The tubular object (1), the top flange (2), and the bottom flange (3) are coaxial. The tubular object (1) has an opening.

2. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: The tubular structure (1), bottom flange (3), and top flange (2) are cast or welded together to form an integral structure.

3. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: The tubular object (1) is made of metal with a wall thickness greater than 0.5 cm. It is a hollow cylindrical tube, a hollow frustum tube, or a polygonal tube.

4. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: The bolt holes of the top flange (2) and the bottom flange (3) are one or two turns.

5. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: The connection hole of the bottom flange (3) is located on the inner and / or outer side of the pipe wall of the tubular object (1).

6. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: The connection hole of the top flange (2) is located on the inner and / or outer side of the pipe wall of the tubular object (1).

7. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: The tubular object (1) is equipped with a ladder inside.

8. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: The tubular object (1) has an internal mounting platform.

9. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: The pipe wall at the opening of the tubular object (1) is thickened for protection.

10. The nacelle wall of a vertical axis wind turbine according to claim 1, characterized in that: A door frame and a door are installed on the opening of the tubular object (1).

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