CN110345012B - Wind power generation equipment convenient to heat dissipation - Google Patents

Abstract

The invention relates to a wind power generation device that is convenient for heat dissipation, comprising a wind power generator set, a tower and a nacelle. The wind power generator set includes a power generating device, a wind paddle and a hub plate. The power generating device is provided with a main shaft. The main shaft is hollow and arranged in the main shaft. There is a first air valve, a first air inlet is arranged on the hub plate, a first air outlet is arranged at the end of the engine room away from the wind paddle, and a second air valve is arranged on the first air outlet; the tower is communicated with the engine room and the tower is arranged. The side wall of the tower is provided with a second air inlet, the second air inlet is provided with a cooling fan, the end of the tower away from the second air inlet is provided with a second air outlet, and the second air outlet is provided with a third air valve. Through the arrangement of the first air inlet and the hollow main shaft on the hub plate, the solution can use natural wind to cool the equipment, and through the arrangement of multiple air valves and cooling fans, it can cool down each position of the equipment in a targeted manner, and has a simple structure. Reduce energy consumption, strong practicability and other beneficial effects.

Description

A kind of wind power generation equipment that is easy to dissipate heat

technical field

The invention relates to the technical field of wind power generation, in particular to a wind power generation device that facilitates heat dissipation.

Background technique

Due to the installation of electrical equipment with large heat generation such as frequency converters, transformers, control cabinets and other electrical equipment in the tower base and engine room of the wind turbine, the internal space of the tower base is small, the heat dissipation is not good, and the long-term sunshine causes the ambient temperature of the tower base Higher, it will seriously affect the normal, stable and safe operation of electrical equipment. Therefore, wind turbines need to design a ventilation and heat dissipation scheme to ensure that the electrical equipment has a good operating ambient temperature. Most of the heat dissipation methods of the existing wind turbines are by adding a cooling fan in the tower, and the air is discharged from the engine room through the tower, and the engine room and the tower are cooled at the same time. This kind of scheme can achieve the purpose of cooling, but it cannot be targeted. It cools down the location where the heating device is located, and at the same time, the energy consumption is high, which is inconvenient to use.

For example, a "wind generator set cooling system, its control method and wind generator set" disclosed in the Chinese patent document, its bulletin number CN105134508A, includes an air inlet, which is provided on the wall of the tower; a fan, which is provided with In the tower, it is used to introduce external air into the tower through the air inlet; a bellows, the bellows has an air inlet end opened downward and an air outlet end opposite to the air inlet end, An air handling system is arranged in the bellows, the air handling system isolates the air inlet end from the air outlet end, the air inlet end is connected to the air inlet through an air guide pipe, and the air inlet end is connected to the air inlet. The fan is arranged on the air outlet end. This solution can achieve the effect of cooling, but cannot cool down the location of the heating device in a targeted manner, and the energy consumption is high, which is inconvenient to use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to improve and innovate the shortcomings and problems existing in the background technology, and to provide a kind of wind power generation equipment that can reduce the temperature of each position in a targeted manner and is convenient for heat dissipation.

The technical solution of the present invention is to construct a wind power generation equipment including a wind turbine, a tower and a nacelle, the wind turbine includes a power generating device, a hub plate and a wind paddle connected in sequence, and the power generating device is fixedly connected to the nacelle , wherein: a main shaft is arranged in the power generation device, the main shaft is hollow, a first air valve is arranged in the main shaft, a first air inlet is arranged on the hub plate, and the nacelle is far away from the wind paddle. One end is provided with a first air outlet, and the first air outlet is provided with a second air valve; the tower is communicated with the engine room, and the side wall of the tower is provided with a second air inlet. A cooling fan is arranged on the second air inlet, a second air outlet is arranged at one end of the tower away from the second air inlet, and a third air valve is arranged on the second air outlet.

In the scheme, the wind turbine, the tower and the nacelle are the basic structures of the wind turbine. The hollow main shaft and the first air inlet on the hub plate are used to introduce natural wind into the nacelle to cool down and reduce energy consumption. The setting of the air valve is closed when the outside temperature is high to avoid the influence of the hot air on the components in the engine room. The setting of the inlet and outlet seals and several air valves in the device can control the flow of cooling air by opening and closing the air valve. The direction is controlled. Under normal conditions, the first and third air valves are opened, and the second air valve is closed. The natural wind is blown into the engine room from the main shaft, and after entering the tower, it is blown out from the second air outlet; when the temperature in the tower is high, When the cooling fan is turned on, the natural wind and the air inlet of the cooling fan cool the tower at the same time; when the temperature in the engine room is high, the second air valve is opened, the third air valve is closed, and the natural wind blows through the engine room directly from the first air outlet After blowing out, the cooling fan enters the engine room after passing through the tower, and quickly cools the engine room, so as to achieve the purpose of targeted cooling, and has strong practicability.

Preferably, both the first air inlet and the second air inlet are provided with dust-proof nets. The setting of the dust-proof net can prevent the outside dust and sundries from entering the equipment and ensure the normal operation of the various components in the equipment.

Preferably, a first cavity and a second cavity are respectively provided in the tower from top to bottom, the cooling fan is located in the first cavity, and a first ventilation is provided at the connection between the nacelle and the tower The connection between the first cavity and the second cavity is provided with a second ventilation port and an air inlet, and an induced draft fan is arranged on the air inlet. Since there are usually several layers in the tower (to facilitate the installation of the tower), this solution is used to reflect the cooling method of the temperature at each height of the multi-layer tower. The setting of the first vent and the second vent is convenient for wind Conduction, the cooling fan located in the first cavity is convenient for cooling the engine room. The setting of the air inlet and the induced draft fan can introduce the cold air in the first cavity into the second cavity, and cool the second cavity. The actual use At the same time, an opening and closing air valve can also be added on the side wall of the second cavity to improve the control effect.

Preferably, grid plates are arranged on the first ventilation opening, the second ventilation opening and the air induction opening. The setting of the grid plate can prevent the staff from falling from the upper cavity during operation, and at the same time prevent the components in the engine room from falling into the tower, eliminating potential safety hazards.

Preferably, the tower is provided with a controller for controlling each element. The setting of the controller is used to control the opening and closing of the cooling fan, the induced draft fan and each valve to improve the control effect.

Preferably, both the cabin and the tower are provided with temperature sensors, and the temperature sensors are electrically connected to the controller. The temperature sensor is used to detect the temperature of each position of the equipment and transmit it to the controller to achieve the purpose of automatic adjustment.

Preferably, a plurality of cooling fins are arranged on the side wall of the tower, and the cooling fins are arranged close to the cooling fan. The setting of the refrigerating sheet is used to cool the air outlet of the cooling fan and improve the cooling effect of the air body. The refrigerating sheet is only an example, and other refrigerating devices can be used according to the actual use.

Advantages and beneficial effects of the present invention:

Through the arrangement of a plurality of air valves and cooling fans, the present invention can lower the temperature of each position of the equipment in a targeted manner. The overall structure of the present invention is simple, and a natural air inlet (first air inlet) is also provided, which reduces loss and has strong practicability.

Description of drawings

FIG. 1 is a schematic cross-sectional structure diagram of the present invention in a normal state.

Figure 2 is a schematic diagram of the wind direction when the cabin is high temperature.

FIG. 3 is a schematic diagram of the wind direction of the first cavity when the temperature is high.

FIG. 4 is a schematic diagram of the wind direction of the second cavity when the temperature is high.

In the picture: 1-wind direction, 2-tower, 3-engine room, 4-generator, 5-wind paddle, 6-hub plate, 7-spindle, 8-first air valve, 9-first air inlet, 10 -First air outlet, 11-Second air valve, 12-Second air inlet, 13-Second air outlet, 14-Third air valve, 15-Cooling fan, 16-Dust net, 17-First cavity body, 18-second cavity, 19-first vent, 20-second vent, 21-air intake, 22-draft fan, 23-grid plate, 24-controller, 25-temperature sensor , 26-refrigeration sheet.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "disposed" or "connected" to another element, it can be directly disposed or connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art of this invention. The terms used in the specification are only for the purpose of describing specific implementations, and are not intended to limit the present invention.

As shown in FIG. 1 , a wind power generation equipment including a wind turbine, a tower 2 and a nacelle 3, the wind turbine includes a power generation device 4, a hub plate 6 and a wind paddle 5 connected in sequence, and the power generation device 4 is fixedly connected with the engine room 3, wherein: the main shaft 7 is provided in the power generation device 4, the main shaft 7 is hollow, the main shaft 7 is provided with a first air valve 8, and the hub plate 6 is provided with a The first air inlet 9, the end of the cabin 3 away from the wind paddle 5 is provided with a first air outlet 10, the first air outlet 10 is provided with a second air valve 11; the tower 2 and the cabin 3 are provided with a first air outlet 10. Connected, the side wall of the tower 2 is provided with a second air inlet 12, the second air inlet 12 is provided with a cooling fan 15, and the end of the tower 2 away from the second air inlet 12 is provided with a second air inlet 12. The air outlet 13, the second air outlet 13 is provided with a third air valve 14.

Specifically, as shown in FIG. 1 , both the first air inlet 9 and the second air inlet 12 are provided with dustproof nets 16 .

Specifically, as shown in FIG. 1 , the tower 2 is provided with a first cavity 17 and a second cavity 18 from top to bottom, the cooling fan 15 is located in the first cavity 17 , and the The connection between the nacelle 3 and the tower 2 is provided with a first ventilation port 19, and the connection between the first cavity 17 and the second cavity 18 is provided with a second ventilation port 20 and an air inlet 21. The air induction port 21 is provided with an induced draft fan 22 .

Specifically, as shown in FIG. 1 , the first vent 19 , the second vent 20 and the air inlet 21 are all provided with a grid plate 23 .

Specifically, as shown in FIG. 1 , the tower 2 is provided with a controller 24 for controlling each element.

Specifically, as shown in FIG. 1 , a temperature sensor 25 is provided in the nacelle 3 and the tower 2 , and the temperature sensor 25 is electrically connected with the controller 24 .

Specifically, as shown in FIG. 1 , a plurality of cooling fins 26 are arranged on the side wall of the tower tube 2 , and the cooling fins 26 are arranged close to the cooling fan 14 .

During use, under normal conditions, the first air valve 8 and the third air valve 14 are opened, and the second air valve 11 is closed. As shown in FIG. , is blown out from the second air outlet 13 to cool the tower 2 and the engine room 3 without turning on the cooling motor 15 to reduce energy consumption;

When the temperature sensor 25 senses that the temperature in the first cavity 17 is relatively high, the cooling sheet 16 and the cooling fan 15 are turned on. As shown in FIG. 2 , the natural wind and the cooling fan 15 enter the air to cool the tower 2 at the same time;

When the temperature sensor 25 senses that the temperature in the second cavity 18 is higher, the cooling sheet 16 , the cooling fan 15 , the induced draft fan 22 , the first air valve 8 and the second air valve 11 are turned on, and the third air valve 14 is closed. 3, the cooling air in the first cavity 17 is introduced into the second cavity 18 for cooling;

When the temperature sensor 25 senses that the temperature in the engine room 3 is relatively high, the cooling sheet 16, the cooling fan 15, the first air valve 8 and the second air valve 11 are opened, and the third air valve 14 is closed, as shown in FIG. 4, naturally After the wind blows through the cabin 3, it is directly blown out from the first air outlet 10, and the cooling fan 15 enters the cabin 3 after passing through the first cavity 17, and is blown out from the first air outlet 10 to rapidly cool the cabin 3;

When the outside temperature is high or the temperature difference between the outside and the inside of the equipment is large, the first air valve 8 is closed, and the equipment is cooled only by the cooling fan 15 .

The scheme is simple in structure, convenient in operation, strong in stability, and has beneficial effects such as high cooling efficiency and low energy consumption.

The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Various modifications and improvements made should fall within the protection scope of the present invention, and the technical content claimed in the present invention has been fully recorded in the claims.

Claims (3)

1. a kind of wind power generation equipment that is convenient for heat dissipation, comprises wind power generator set, tower and nacelle, it is characterized in that: described wind power generator set comprises power generation device, hub plate and wind paddle connected in turn, described power generation device and nacelle Fixed connection, where: The power generation device is provided with a main shaft, the main shaft is hollow, the main shaft is provided with a first air valve, the hub plate is provided with a first air inlet, and the end of the nacelle away from the wind paddle is provided with a first air valve. a first air outlet, the first air outlet is provided with a second air valve; The tower is communicated with the engine room, the side wall of the tower is provided with a second air inlet, the second air inlet is provided with a cooling fan, and the end of the tower away from the second air inlet is provided with a second air inlet. Two air outlets, the second air outlet is provided with a third air valve; The tower is provided with a first cavity and a second cavity from top to bottom, the cooling fan is located in the first cavity, and a first vent is provided at the connection between the engine room and the tower, so the cooling fan is located in the first cavity. A second vent and an air inlet are arranged at the connection between the first cavity and the second cavity, and an induced draft fan is arranged on the air inlet; The tower is provided with a controller for controlling each element, the cabin and the tower are provided with temperature sensors, the temperature sensor is electrically connected with the controller, and the side of the tower is provided with a temperature sensor. Several cooling fins are arranged on the wall, and the cooling fins are arranged close to the cooling fan. 2 . The wind power generation equipment according to claim 1 , wherein the first air inlet and the second air inlet are provided with dust-proof nets. 3 . 3 . The wind power generation equipment that facilitates heat dissipation according to claim 1 , wherein the first ventilation opening, the second ventilation opening and the air induction opening are all provided with grid plates. 4 .

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