CN205977553U - Offshore wind power generation machine - Google Patents

Abstract

The utility model provides an offshore wind power generation machine, belongs to wind power generation technical field. Set up a set of swinging boom on aerogenerator's the wind wheel, the swinging boom slope is arranged to rotor shaft is radially distributed for the center, and the lower extreme of swinging boom is fixed on the wind wheel carousel, sets up the blade on the swinging boom. The utility model discloses reduce the height of center of gravity of aerogenerator wind wheel, improved aerogenerator job stabilization nature, avoided aerogenerator can produce the problem of great displacement effectively in the high sea to the potential safety hazard in the offshore wind farm working process has been eliminated.

Description

An offshore wind turbine

technical field

The utility model relates to a wind power generator, in particular to an offshore wind power generator, which belongs to the technical field of wind power generation.

Background technique

The principle of wind power generation is to use the wind to drive the windmill blades to rotate, and then increase the speed of rotation through the speed increaser to promote the generator to generate electricity. Since wind power generation does not involve fuel issues, nor does it produce radiation or air pollution, it is a clean and environmentally friendly power generation method. Especially with the continuous development and utilization of marine resources, the construction of offshore wind farms is currently forming a boom in the world .

Wind turbines are generally equipped with components such as wind rotors, generator sets, steering gears, towers, speed limiting safety mechanisms, and energy storage devices. According to the layout of the wind rotor shaft, they can be divided into horizontal axis wind turbines and vertical axis wind turbines. There are two types of wind turbines. Among them, the rotation axis of the wind rotor of the vertical axis wind turbine is perpendicular to the ground or the direction of air flow, and there is no need to face the wind when the wind direction changes. Therefore, the vertical axis wind turbine not only simplifies the structural design, but also reduces the The gyro force of the wind wheel when facing the wind. However, most of the existing vertical-axis wind turbine rotors are located on the upper part of the rotor shaft, and are in a Φ or H-shaped structure. For wind farms standing on the boundless ocean, there are wind turbines with a high center of gravity and poor stability. The problem is that the wind turbine will have a large displacement in the strong wind and waves, which will cause safety hazards in the working process of the offshore wind farm.

Utility model content

The purpose of the utility model is to provide an offshore wind generator to improve the stability of the wind generator and ensure the reliability of the offshore wind farm.

The above-mentioned purpose of the utility model is achieved through the following technical solutions:

An offshore wind power generator. A group of rotating arms are arranged on the wind rotor of the wind power generator. The rotating arms are arranged obliquely and radially distributed around the rotation axis of the wind rotor. The lower ends of the rotating arms are fixed on the rotor disk On, blades are set on the upper end of the rotating arm.

For the above-mentioned offshore wind power generator, the number of the rotating arms is three groups, and the spatial angle α≮30° between the central axis of each group of rotating arms and the central axis of the rotating shaft of the wind rotor.

In the above-mentioned offshore wind power generator, a pulling element is arranged between the rotating shaft of the wind rotor and the rotating arm.

In the above-mentioned offshore wind power generator, the pulling element adopts a steel cable or a tie rod structure.

In the utility model, the blades are arranged on the top of the rotating arm arranged obliquely, and the lower end of the rotating arm is fixed on the turntable of the wind wheel, thereby reducing the height of the center of gravity of the wind wheel of the wind power generator, improving the working stability of the wind power generator, and effectively It effectively avoids the problem of large displacement of wind turbines in strong winds and waves, thereby eliminating potential safety hazards in the working process of offshore wind farms.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a front view of Fig. 1 .

The list of labels in the figure is: 1. Rotating arm, 2. Wind wheel rotating shaft, 3. Wind wheel rotating disk, 4. Pulling element, 5. Blade.

It should be pointed out that: in order to clearly express the position and assembly relationship between the various components, a set of rotating arms installed in front of the rotating shaft of the wind wheel is omitted in Fig. 1 and Fig. 2 .

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

Referring to Fig. 1 and Fig. 2, the utility model is an offshore wind-driven generator. Three groups of rotating arms 1 are arranged on the wind rotor of the wind-driven generator. Distributed radially, the space angle between the central axis of each group of rotating arms 1 and the central axis of the wind wheel rotating shaft 2 is α≮30°.

Referring to Fig. 1 and Fig. 2, the utility model provides a pulling element 4 between the rotating shaft 2 of the wind wheel and the rotating arm 1, and the pulling element 4 adopts a steel cable or a pull rod structure.

Referring to Fig. 1 and Fig. 2, the utility model arranges the rotating arm 1 obliquely, and fixes the lower end of the rotating arm 1 on the wind wheel turntable 2, thus reducing the height of the center of gravity of the wind wheel of the wind power generator and improving the working efficiency of the wind power generator. The stability of the wind turbine effectively avoids the problem of large displacement of the wind turbine in the strong wind and waves, thereby eliminating the safety hazard in the working process of the offshore wind farm.

Claims (4)

1. a kind of offshore wind generating, arranges turning arm on the wind wheel of described wind-driven generator（1）, it is characterized in that, described Turning arm（1）It is in tilted layout, with wind wheel rotary shaft（2）Centered on radially distribute, turning arm（1）Lower end be fixed on wind wheel Rotating disk（3）On, in turning arm（1）Upper end arranges blade（5）.

2. offshore wind generating according to claim 1, is characterized in that, described turning arm（1）Quantity is three groups, each Group turning arm（1）Central axis and wind wheel rotary shaft（2）Space angle α ≮ 30 of central axis.

3. offshore wind generating according to claim 1 and 2, is characterized in that, described wind wheel rotary shaft（2）With turning arm （1）Between arrange tractive element（4）.

4. offshore wind generating according to claim 3, is characterized in that, described tractive element（4）Using cable wire or draw Bar structure.