CN213981076U

CN213981076U - Wind generating set

Info

Publication number: CN213981076U
Application number: CN202022573284.7U
Authority: CN
Inventors: 吴巍; 青根木; 刘岩; 刘洋; 马文斌; 代亚良; 安达
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 discloses a wind generating set, because the air intake setting forms chimney effect by the heat dissipation wind channel that air intake, second cavity, first cavity, air outlet constitute on a tower section of thick bamboo for the hot gas flow in the cabin flows from the air outlet, accelerates the heat dissipation to the components and parts in the cabin. Meanwhile, the air outlet is formed in the top of the engine room, the air inlet is formed in the tower barrel below the engine room, the heat dissipation air duct is formed between the air inlet and the air outlet, the fan is used for accelerating the airflow flow of the heat dissipation air duct at the air outlet, the heat in the engine room is accelerated to be taken away by the airflow in the air duct, and therefore the temperature in the engine room is reduced. Because the heat dissipation air duct forms a structure similar to a chimney, namely the heat dissipation air duct has a very high height in the vertical direction, which can reach more than twenty meters generally, dust and sand entering the heat dissipation air duct from the air inlet along with the air flow can slow down and fall due to the influence of gravity acceleration in the rising process due to long rising time, and the heat dissipation air duct of the chimney structure plays a role in filtering the dust and sand.

Description

Wind generating set

Technical Field

The utility model relates to a wind power generation technical field, in particular to wind generating set.

Background

Important components such as a generator, a gear box, a frequency converter and the like are arranged in a cabin of the wind generating set, and can generate a large amount of heat when working. When the wind field is located in an environment with more wind and sand, particularly when the wind field is generally rain and hot in summer, dust can adhere to the surface of the radiator, and the heat dissipation capacity of the radiator is reduced. When the ambient temperature is slightly high, the temperature in the engine room is easily higher than a preset working temperature threshold value, the over-temperature of the gear box easily occurs, and components in the engine room work for a long time when exceeding the preset working temperature threshold value, so that the loss is easily accelerated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a wind generating set, through offering the air outlet at the cabin top, offer the air intake at the tower section of thick bamboo of cabin below, found the heat dissipation wind channel between air intake and air outlet, utilize the fan to accelerate the air current in heat dissipation wind channel at the air outlet and flow for the heat is taken away by the air current in the wind channel in the cabin, thereby reduces the temperature in the cabin.

The utility model provides a wind generating set, include:

the cabin is internally provided with a first cavity, the top of the cabin is provided with an air outlet, and the bottom of the cabin is provided with a first through hole;

the tower barrel is internally provided with a second cavity, the top of the tower barrel is provided with a second through hole, the side wall of the tower barrel is provided with an air inlet, and the second through hole is communicated with the first through hole; and

and the fan is arranged at the air outlet and used for driving airflow to sequentially flow into the second cavity and the first cavity from the air inlet and flow out from the air outlet.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

1. an air outlet is formed in the top of the engine room, an air inlet is formed in the tower barrel below the engine room, a heat dissipation air duct is formed between the air inlet and the air outlet, the fan is used for accelerating airflow flowing of the heat dissipation air duct at the air outlet, heat in the engine room is accelerated to be taken away by the airflow in the air duct, and therefore the temperature in the engine room is reduced.

2. Because the air inlet is arranged on the tower barrel, the heat dissipation air duct formed by the air inlet, the second cavity, the first cavity and the air outlet forms a chimney effect, hot air in the engine room flows out from the air outlet, and heat dissipation of components in the engine room is accelerated.

As a further improvement, a gear box is arranged in the engine room, and the first through hole is positioned right below the gear box.

As a further improvement, a tower door is arranged on the tower barrel, and the air inlet is positioned on the tower door.

As further improvement, still include the air-out pipeline, the air-out pipeline intercommunication the air outlet, the fan is installed in the air-out pipeline, the air-out pipeline stretches into one end in the first cavity in the cabin covers there is the filter screen.

As a further improvement, one end of the air outlet pipeline extending out of the engine room is arranged into a bending structure with an opening facing to the horizontal direction or the downward direction.

As a further improvement, the wind power generation device further comprises a rain shelter connected to the top of the cabin.

As a further improvement, the bottom of the engine room is provided with a plurality of air inlet holes.

As a further improvement, the air inlet is provided with a sand filtering net.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

FIG. 1 is a schematic structural diagram of a wind generating set in one embodiment.

FIG. 2 is a schematic view of a nacelle according to an embodiment.

Fig. 3 is a schematic structural view of an air outlet duct in one embodiment.

Fig. 4 is a schematic structural view of a nacelle according to another embodiment.

Reference numerals:

100. a nacelle; 110. a first cavity; 120. an air outlet; 130. a first through hole; 140. an air outlet pipeline; 150. a gear case; 200. a tower drum; 210. a second cavity; 220. a tower door; 230. an air inlet; 240. a second through hole; 250. an air inlet hole; 300. a fan; 310. a filter screen;

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

To facilitate understanding of the embodiments of the present invention by those skilled in the art, the technical terms related to the embodiments are briefly described below.

Gearboxes are used in a wide range of applications, for example in wind power installations, where gearboxes are an important mechanical component. The wind power generator mainly has the function of transmitting the power generated by the wind wheel under the action of wind power to the generator and enabling the generator to obtain corresponding rotating speed.

The wind generating set comprises a wind wheel and a generator; the wind wheel comprises blades, a hub, a reinforcing member and the like; it has the functions of wind driven blade rotation to generate electricity, generator head rotation, etc. The wind power generation power supply comprises a wind generating set, a tower frame for supporting the generating set, a storage battery charging controller, an inverter, an unloader, a grid-connected controller, a storage battery pack and the like. In the embodiment, a wind generating set with a tower-type structure is used.

In the following, a wind turbine generator set according to an embodiment of the present invention will be described and explained in detail through several specific embodiments.

As shown in fig. 1 to 4, in one embodiment, a wind park is provided, comprising a nacelle 100, a tower 200 and a wind turbine 300. The cabin 100 has a first cavity 110 therein, an air outlet 120 is formed at the top thereof, and a first through hole 130 is formed at the bottom thereof; the tower tube 200 has a second cavity 210 therein, a second through hole 240 is formed at the top, an air inlet 230 is formed in the side wall, and the second through hole 240 is communicated with the first through hole 130; the fan 300 is disposed at the air outlet 120, and is configured to drive an air flow to sequentially flow into the second cavity 210 and the first cavity 110 from the air inlet 230 and flow out from the air outlet 120.

In this embodiment, since the air inlet 230 is disposed on the tower 200, the heat dissipation air duct formed by the air inlet 230, the second cavity 210, the first cavity 110, and the air outlet 120 forms a chimney effect, so as to accelerate the outflow of hot air in the cabin 100 from the air outlet 120 and accelerate the heat dissipation of components in the cabin 100. Meanwhile, the air outlet 120 is formed in the top of the cabin 100, the air inlet 230 is formed in the tower drum 200 below the cabin 100, the heat dissipation air duct is formed between the air inlet 230 and the air outlet 120, the fan 300 is used for accelerating the airflow flow of the heat dissipation air duct at the air outlet 120, the heat in the cabin 100 is accelerated to be taken away by the airflow in the air duct, and therefore the temperature in the cabin 100 is reduced.

It can be understood that, because the heat dissipation air duct forms a structure similar to a chimney, that is, the heat dissipation air duct has a very high height in the vertical direction, which can be generally more than twenty meters, dust and sand entering the heat dissipation air duct from the air inlet 230 along with the air flow, and because the rising time is long, the dust and sand falls down due to the influence of gravity acceleration in the rising process, and the heat dissipation air duct of the chimney structure plays a role in filtering dust and sand.

As shown in FIG. 1, in one embodiment, a gearbox 150 is disposed within the nacelle 100, and the first through-hole 130 is located directly below the gearbox 150. Because the gear box 150 directly faces the first through hole 130, when air circulates in the heat dissipation air duct, the contact area with the gear box 150 is increased, and heat removal is accelerated. Specifically, a plurality of first through holes 130 may be further provided, such that the first through holes 130 are aligned below the frequency converter and the generator, respectively. And the heat dissipation of each component is accelerated.

As shown in fig. 1, in an embodiment, a tower door 220 is disposed on the tower drum 200, the air inlet 230 is disposed on the tower door 220, and a sand filter screen is mounted on the air inlet 230 to further filter out dust and sand outside the tower drum 200.

As shown in fig. 3, the wind outlet device further includes a wind outlet pipe 140, the wind outlet pipe 140 is communicated with the wind outlet 120, the fan 300 is installed in the wind outlet pipe 140, and a filter screen 310 covers one end of the wind outlet pipe 140 extending into the first cavity 110 in the nacelle 100.

It can be understood that the filter screen 310 is arranged to effectively prevent dust and oil gas from attaching to the fan 300.

In some embodiments, the end of the outlet duct 140 extending out of the nacelle 100 is configured as a bent structure with an opening facing horizontally or downward.

It will be appreciated that, as shown in fig. 4, the end of the outlet duct 140 extending out of the nacelle 100 is arranged to be open downward, which prevents rainwater from flowing into the nacelle 100.

In other embodiments, a rain shelter (not shown) is attached to the top of the nacelle 100 to further prevent rain from flowing into the nacelle 100.

As shown in fig. 2, in some embodiments, the bottom of the nacelle 100 is provided with a plurality of air inlet holes 250, so as to increase the air flow in the nacelle 100 and improve the cooling efficiency.

It can be understood that, in order to keep the temperature in the cabin 100 stable in a preset working temperature range, a temperature sensor, a controller, the plurality of air outlets 120 and the fans 300 are arranged in the base, a temperature signal of the temperature sensor is sent to the controller, when the controller judges that the temperature is greater than a threshold value, the plurality of fans 300 are controlled to work simultaneously, and when the temperature is less than the threshold value, part of the fans 300 can be controlled to stop working, so as to save electric energy.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims

1. A wind turbine generator set, comprising:

2. A wind park according to claim 1, wherein a gear box is arranged in the nacelle, said first through hole being located directly below said gear box.

3. The wind generating set of claim 1, wherein the tower has a tower door, and the air inlet is located on the tower door.

4. The wind generating set according to claim 1, further comprising an air outlet duct, wherein the air outlet duct is communicated with the air outlet, the fan is installed in the air outlet duct, and a filter screen covers an end of the air outlet duct extending into the first cavity in the nacelle.

5. A wind power plant according to claim 4, characterised in that the end of the air outlet duct extending out of the nacelle is arranged in a bent configuration with the opening facing horizontally or downwards.

6. A wind park according to claim 5, further comprising a canopy connected to the top of the nacelle.

7. A wind power plant according to claim 1, characterised in that the bottom of the nacelle is provided with air inlet openings.

8. A wind power plant according to claim 1, wherein a sand screen is mounted on said air inlet.