CN110345012A - A kind of wind power plant convenient for heat dissipation - Google Patents

Abstract

The invention relates to a kind of wind power generation equipment which is convenient for heat dissipation, which comprises a wind power generation unit, a tower and a nacelle. There is a first air valve, a first air inlet is provided on the hub plate, a first air outlet is provided at the end of the nacelle away from the wind paddle, and a second air valve is arranged on the first air outlet; the tower is connected to the nacelle, and the tower A second air inlet is provided on the side wall of the tower, a cooling fan is arranged on the second air inlet, a second air outlet is arranged on the end of the tower away from the second air inlet, and a third air valve is arranged on the second air outlet. Through the setting of the first air inlet on the hub plate and the hollow main shaft, the solution can use natural wind to cool down the equipment. Through the setting of multiple air valves and cooling fans, it can cool down the temperature of each position of the equipment in a targeted manner. It has a simple structure, The utility model has beneficial effects such as reducing energy consumption and strong practicability.

Description

A kind of wind power generation equipment that is convenient for heat dissipation

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 frequency converters, transformers, control cabinets and other electrical equipment with high heat generation in the wind turbine tower base and the engine room, the tower base has a small internal space and poor heat dissipation. If it is 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 electrical equipment has a good operating environment temperature. Most of the heat dissipation methods of existing wind turbines are to add a cooling fan in the tower, and the air is discharged from the cabin through the tower to cool the cabin and the tower at the same time. This type of scheme can achieve the purpose of cooling, but it cannot be targeted It is necessary to cool down the position where the heating device is located, and at the same time, the energy consumption is high, which is not convenient for use.

For example, a "Wind Power Generating Set Heat Dissipation System, Its Control Method, and Wind Power Generating Set" disclosed in Chinese patent literature, its notification number CN105134508A, includes an air inlet, which is arranged on the wall of the tower; In the tower, it is used to introduce external air into the tower through the air inlet; the air box, the air box has a downwardly open air inlet end and an air outlet end opposite to the air inlet end, An air treatment system is provided in the bellows, the air treatment system isolates the air inlet end from the air outlet end, the air inlet end is connected to the air inlet port through an air duct, and the air inlet end is connected to the air inlet port. The fan is arranged on the air outlet end. This solution can achieve the effect of cooling, but cannot specifically cool the location of the heating device, and has high energy consumption, which is inconvenient to use.

Contents of the invention

The purpose of the present invention is to improve and innovate on the shortcomings and problems existing in the background technology, and to provide a kind of wind power generation equipment that can cool 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 power generating set, a tower and a nacelle, the wind power generating set includes a power generating device connected in sequence, a hub plate and a wind paddle, and the power generating device is fixedly connected to the nacelle , wherein: 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 cabin 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 connected to the engine room, and the side wall of the tower is provided with a second air inlet, and the first A cooling fan is arranged on the second air inlet, a second air outlet is arranged on the end of the tower away from the second air inlet, and a third air valve is arranged on the second air outlet.

In the plan, the wind turbine, the tower and the nacelle are the basic structure of the wind power generation device. The setting of 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 first The air valve is set to be closed when the external temperature is high, so as to avoid the influence of hot air on the components in the cabin. The installation 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 inside the tower is high, The cooling fan is turned on, and the natural wind and the cooling fan enter the air to cool down the tower at the same time; when the temperature in the cabin is high, the second air valve is opened, the third air valve is closed, and the natural wind blows through the cabin directly from the first air outlet Blow out, the cooling fan enters the cabin after passing through the tower, and quickly cools the cabin, so as to achieve the purpose of targeted cooling, which is more practical.

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 floating dust and debris from entering the equipment and ensure the normal operation of the components in the equipment.

Preferably, a first cavity and a second cavity are respectively arranged in the tower from top to bottom, the cooling fan is located in the first cavity, and the connection between the engine room and the tower is provided with a first ventilation chamber. The connection between the first cavity and the second cavity is provided with a second ventilation port and an air-introduction port, and the air-introduction port is provided with an air-introduction fan. Since there are usually several layers in the tower (to facilitate the installation of the tower), this scheme is used to reflect the cooling method of the temperature at each height of the multi-layer tower body. The setting of the first vent and the second vent is convenient for wind Conduction, the cooling fan located in the first chamber is convenient to cool down the engine room, the setting of the air inlet and the induction fan can introduce the cold air in the first chamber into the second chamber to cool the second chamber, practical use Also can add switch damper on the side wall of the second cavity during this time, improve control effect.

Preferably, the first ventilation opening, the second ventilation opening and the air introduction opening are all provided with grid plates. The setting of the grid plate can prevent the staff from falling from the upper cavity when operating, and at the same time prevent the components in the cabin from falling into the tower, eliminating potential safety hazards.

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

Preferably, temperature sensors are installed in the engine room and the tower, 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 send it to the controller to achieve the purpose of automatic adjustment.

Preferably, several refrigerating fins are arranged on the side wall of the tower, and the refrigerating fins are disposed close to the cooling fan. The setting of the cooling plate is used to cool the air from the cooling fan and improve the cooling effect of the air body. The cooling plate is only an example, and other cooling devices can be used according to the actual situation.

Advantage of the present invention and beneficial effect:

The present invention can reduce the temperature of each position of the equipment in a targeted manner through the setting of multiple air valves and cooling fans. The present invention has a simple overall structure, and is also provided with a natural wind air inlet (the first air inlet), 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 at high temperature.

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

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

In the figure: 1-wind direction, 2-tower, 3-cabin, 4-power generation device, 5-wind propeller, 6-hub plate, 7-main shaft, 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-proof net, 17-First cavity Body, 18-second cavity, 19-first vent, 20-second vent, 21-introduction vent, 22-introduction fan, 23-grid plate, 24-controller, 25-temperature sensor , 26-refrigerating sheet.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

It should be noted that when an element is considered to be “disposed” or “connected” to another element, it may be directly disposed or connected to another element or an intervening element may exist at the same time.

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

As shown in Figure 1, a kind of wind power generation equipment that comprises wind power generating set, tower tube 2 and nacelle 3, described wind generating set comprises the generating device 4, hub plate 6 and wind paddle 5 that are connected in sequence, described generating device 4 is fixedly connected with the nacelle 3, wherein: the power generating device 4 is provided with a main shaft 7, 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 The first air inlet 9, the end of the nacelle 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 nacelle 3 The second air inlet 12 is arranged on the side wall of the tower 2, the cooling fan 15 is arranged on the second air inlet 12, and the second air inlet 12 is arranged on the end of the tower 2 away from the 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 , the first air inlet 9 and the second air inlet 12 are both provided with dust-proof nets 16 .

Specifically, as shown in FIG. 1, a first cavity 17 and a second cavity 18 are respectively arranged in the tower 2 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 opening 19, and the connection between the first cavity 17 and the second cavity 18 is provided with a second ventilation opening 20 and an air introduction port 21. 21 is provided with induced draft fan 22.

Specifically, as shown in FIG. 1 , the first ventilation opening 19 , the second ventilation opening 20 and the air introduction opening 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 various components.

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

Specifically, as shown in FIG. 1 , several refrigerating fins 26 are disposed on the side wall of the tower 2 , and the refrigerating fins 26 are disposed 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. , which is blown out from the second air outlet 13 to cool down the tower tube 2 and the cabin 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 high, the cooling plate 16 and the cooling fan 15 are turned on, as shown in Figure 2, the natural wind and the cooling fan 15 enter the wind and cool the tower tube 2 at the same time;

When the temperature sensor 25 senses that the temperature in the second cavity 18 is high, the refrigerating plate 16, the cooling fan 15, the induced draft fan 22, the first damper 8 and the second damper 11 are turned on, and the third damper 14 is closed. , as shown in Figure 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 cabin 3 is high, the refrigerating plate 16, the cooling fan 15, the first damper 8 and the second damper 11 are turned on, and the third damper 14 is closed, as shown in Figure 4, naturally After the wind blows through the nacelle 3, it is directly blown out from the first air outlet 10, and the cooling fan 15 enters the nacelle 3 after passing through the first cavity 17, and is blown out by the first air outlet 10 to rapidly cool down the nacelle 3;

When the outside temperature is high or the temperature difference between the outside and the equipment is large, the first air valve 8 is closed, and only the cooling fan 15 is used to cool down the equipment.

The scheme has the advantages of simple structure, convenient operation, strong stability, high cooling efficiency and low energy consumption.

The embodiments described in the present invention are only a description of the preferred implementation of the present invention, and are not intended to 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 (7)

1. A kind of wind power generation equipment that is convenient to heat dissipation, comprises wind power generating set, tower tube and engine room, it is characterized in that: described wind generating set comprises power generation device, hub plate and wind paddle that are connected successively, 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 a first air outlet, the first air outlet is provided with a second air valve; The tower is arranged in communication 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. 2. The wind power generating equipment for heat dissipation according to claim 1, characterized in that the first air inlet and the second air inlet are both provided with dust-proof nets. 3. The wind power generation equipment for heat dissipation according to claim 1 or 2, characterized in that a first cavity and a second cavity are respectively arranged in the tower from top to bottom, and the cooling fan is located in the second cavity. In a cavity, a first vent is provided at the connection between the nacelle and the tower, a second vent and an air introduction port are provided at the connection between the first cavity and the second cavity, and the air introduction port An induced draft fan is provided. 4. The wind power generation equipment for heat dissipation according to claim 3, characterized in that the first vent, the second vent and the air inlet are all provided with grid plates. 5. The wind power generation equipment that facilitates heat dissipation according to claim 1, characterized in that a controller for controlling each element is arranged inside the tower. 6 . The wind power generation equipment that facilitates heat dissipation according to claim 5 , wherein a temperature sensor is installed in the engine room and the tower, and the temperature sensor is electrically connected to the controller. 7 . 7. The wind power generation equipment that facilitates heat dissipation according to claim 1, wherein 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.