Dehumidification device of wind driven generator

Abstract

The utility model discloses a wind driven generator dehumidification device which comprises a support, a machine shell is fixedly installed on the top of the support, a hub is arranged on one side of the machine shell, blades are fixedly installed on the circumferential side face of the hub, a cavity is formed in the support and communicated with the machine shell, and a fan is arranged in the cavity. A cavity is formed in the support, a fan and a pipeline which are used for conveying wind power into the cavity are arranged on the support, a heating piece is arranged in the cavity, a condensation mechanism is arranged in the support and located on the upper side of the heating piece, and a water collecting tank is installed on the support. When the humidity in the machine shell is large, the draught fan rotates, so that external air flows towards the cavity in the support through the pipeline and flows towards the direction of the machine shell on the top of the support, when the air enters the cavity, the heating piece heats the air, and after the external air passes through the draught fan and the heating piece, the flowing hot air dehumidifies the interior of the machine shell. And the water flows outwards and is sprayed out from the gap of the enclosure, so that the effect of reducing the humidity in the enclosure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbines, and particularly relates to a dehumidification device for a wind turbine. Background Art

[0002] Wind power generation converts the kinetic energy of the wind into mechanical energy and then converts the mechanical energy into electrical energy for utilization. As a clean and renewable energy source, wind energy has attracted more and more attention from countries around the world due to its green, environmental protection and reusability. At the same time, because the energy consumed is the wind in nature, some farmers or residents will also install small wind turbines for household electricity use.

[0003] Among them, the wind turbine supports the fan blades in the air through a bracket. The wind in the environment drives the fan blades to rotate, and the fan blades drive the rotor to rotate. Through the internal conversion of the wind turbine, the mechanical energy is converted into electrical energy. Since the generator is located in the housing at the top of the bracket and is at a relatively high height, it is difficult for the staff to check the inside of the wind turbine at any time. In case of rainy weather, the generator inside the housing will get damp, which is likely to cause a short circuit in the wires inside the generator and even damage the generator. Content of the Utility Model

[0004] In order to solve at least one technical problem mentioned in the background art, the purpose of the utility model is to provide a dehumidification device for a wind turbine to reduce the humidity inside the wind turbine.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A dehumidification device for a wind turbine, including a bracket, a housing is fixedly installed at the top of the bracket, a hub is arranged on one side of the housing, blades are fixedly installed on the circumferential side of the hub, a humidity sensor is arranged inside the housing, a power generation mechanism is installed inside the housing, a cavity is arranged inside the bracket, the cavity is communicated with the housing, a fan and a pipeline for conveying wind into the cavity are arranged on the bracket, a heating element is arranged inside the cavity, a condensation mechanism is arranged above the heating element inside the bracket, and a water collection tank is installed on the bracket.

[0006] Further, the condensation mechanism includes a condensation plate, the condensation plate is in a horn shape, and the opening gradually decreases from bottom to top.

[0007] Further, a water inlet is arranged on the upper side of the water collection tank, a drainage ring is fixedly installed on the inner wall of the cavity, the drainage ring is located at the lower edge of the condensation plate, and the water inlet is communicated with the drainage ring.

[0008] Further, a diversion circular plate is fixedly installed on the inner side wall of the condensation plate, and the diversion circular plate is located directly below the upper opening of the condensation plate.

[0009] Further, a water outlet is provided on the lower side of the water collecting tank, and a one-way water filtering plate is arranged in the water collecting tank.

[0010] Further, the outer diameter of the flow dividing circular plate is larger than the inner diameter of the opening on the upper side of the condensation plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: when the humidity inside the casing is relatively high, the humidity sensor senses the humidity inside the casing, and thus transmits an electrical signal to the controller. The controller drives the fan to rotate with the electrical signal, so that external air flows through the pipeline into the cavity inside the bracket and flows towards the casing at the top of the bracket. When the air enters the cavity, the heating element heats the air. After the external air passes through the fan and the heating element, the moisture inside it will evaporate and flow towards the condensation mechanism with the air flow. The condensation mechanism and the water collecting tank are used to condensate the water vapor, so as to convey relatively dry air into the casing. Thus, the flowing hot air dehumidifies the inside of the casing and sprays out through the gaps of the casing, so as to achieve the effect of reducing the humidity inside the casing. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the structural schematic diagram of the bracket of the present utility model;

[0014] Figure 3 is the partial cross-sectional view of the bracket structure of the present utility model;

[0015] Figure 4 is the present utility model in Figure 3 is the partially enlarged schematic diagram of the structure at A.

[0016] In the figure: 1. Bracket; 2. Casing; 3. Hub; 4. Blade; 5. Cavity; 6. Fan; 7. Pipeline; 8. Heating element; 9. Condensation mechanism; 91. Condensation plate; 10. Water collecting tank; 101. Water inlet; 102. Water outlet; 11. Drainage ring; 12. Flow dividing circular plate; 13. One-way water filtering plate. Specific Embodiments

[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without any creative work shall fall within the protection scope of the present utility model.

[0018] Please refer to Figure 1, this embodiment provides a dehumidification device for a wind turbine, which includes a bracket 1. A casing 2 is fixedly installed at the top of the bracket 1. A hub 3 is arranged on one side of the casing 2. Blades 4 are fixedly installed on the circumferential side of the hub 3. A power generation mechanism is installed inside the casing 2.

[0019] During the wind power generation process, the external wind drives the blades 4 to rotate, the blades 4 drive the hub 3 to rotate, and the rotation of the hub 3, through the power generation mechanism, converts the mechanical energy of the rotation of the hub 3 into electrical energy, thereby completing the conversion of wind energy into electrical energy.

[0020] However, in rainy weather, rainwater will flow into the inside of the casing 2 along the gap between the hub 3 and the casing 2, and the generator inside the casing 2 will get damp, which can easily cause a short circuit in the wires inside the generator and even damage the generator.

[0021] Please refer to Figure 2 and Figure 3 , to solve the above technical problems. A cavity 5 is arranged inside the bracket 1. The cavity 5 is communicated with the casing 2. A fan 6 and a pipeline 7 for conveying wind power into the cavity 5 are arranged on the bracket 1. A heating element 8 is arranged inside the cavity 5. A humidity sensor is arranged inside the casing 2. It also includes a controller. The humidity sensor, the heating element 8 and the fan 6 are all electrically connected to the controller.

[0022] When the humidity inside the casing 2 is relatively high, the humidity sensor senses the humidity inside the casing 2, and then transmits an electrical signal to the controller. The controller drives the fan 6 to rotate with the electrical signal, so that the external air flows through the pipeline 7 into the cavity 5 inside the bracket 1 and flows towards the casing 2 at the top of the bracket 1. When the air enters the cavity 5, the heating element 8 heats the air, and then blows it into the casing 2. Thus, the flowing hot air dehumidifies the inside of the casing 2, sprays out through the gap of the casing 2, and entrains the water vapor inside the casing 2. At the same time, by blowing the air flow from inside the bracket 1 into the casing 2, the gas can jet out from the inside of the casing 2, reducing the excessive flow of external rainwater into the inside of the casing through the gap of the casing 2.

[0023] Because it is rainy weather outside, a large amount of moisture will also be entrained in the air. When the fan 6 sucks the external air into the cavity 5 through the pipeline 7 and heats it, the internal water vapor will enter the casing 2 along with the air flow. Thus, the moisture entrained by the flowing air from inside the casing 2 will be reduced, resulting in poor dehumidification efficiency.

[0024] Please refer to Figure 2 and Figure 3To address the above technical issues, a condensing mechanism 9 is installed within the bracket 1, above the heating element 8. A water collection tank 10 is mounted on the bracket 1. After the outside air passes through the fan 6 and the heating element 8, the moisture within evaporates. This moisture then flows toward the condensing mechanism 9, where it is condensed by the condensing mechanism 9 and the water collection tank 10, ultimately delivering relatively dry air to the interior of the housing 2, enhancing dehumidification efficiency.

[0025] The condensing mechanism 9 includes a condensing plate 91 . The condensing plate 91 is trumpet-shaped, and the opening thereof gradually decreases from bottom to top.

[0026] As the hot air carrying water vapor flows upward, the water vapor hits the condensation plate 91 and condenses into small water droplets that adhere to the condensation plate 91, thereby removing the water vapor in the hot air and reducing the moisture content of the hot air blowing upward.

[0027] As more and more water droplets condense on the condensation plate 91, they slide down along the inner wall of the condensation plate 91 under the action of gravity, and the sliding water droplets are collected.

[0028] See also Figure 3 and Figure 4 A water inlet 101 is provided on the upper side of the water collecting tank 10 , and a drainage ring 11 is fixedly installed on the inner wall of the cavity 5 . The drainage ring 11 is located at the lower edge of the condensation plate 91 , and the water inlet 101 is connected to the drainage ring 11 .

[0029] The water drops flowing down from the condensation plate 91 fall into the drainage ring 11 , enter the water collecting tank 10 through the drainage ring 11 , and are collected by the water collecting tank 10 .

[0030] A diverter disc 12 is fixedly mounted on the inner wall of condenser plate 91. This disc 12 is located directly below the upper opening of condenser plate 91, and its outer diameter is larger than the inner diameter of the upper opening of condenser plate 91. As the hot air in the center of cavity 5 flows upward, it comes into contact with diverter disc 12, where it is intercepted. The air then flows upward around diverter disc 12 before coming into contact with condenser plate 91. This maximizes the amount of contact between the hot air and condenser plate 91, removing as much water vapor as possible from the hot air.

[0031] See also Figure 4 A water outlet 102 is provided at the lower side of the water collecting box 10 , and a one-way water filter plate 13 is provided in the water collecting box 10 .

[0032] The water in the water collecting tank 10 is continuously discharged to the outside through the one-way water filter plate 13, thereby preventing the water collecting tank 10 from being filled with water and unable to collect water.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A dehumidification device for a wind turbine, comprising a bracket (1), a casing (2) is fixedly installed at the top of the bracket (1), a hub (3) is arranged on one side of the casing (2), blades (4) are fixedly installed on the circumferential side of the hub (3), a humidity sensor is arranged inside the casing (2), and a power generation mechanism is installed inside the casing (2), characterized in that, A cavity (5) is provided inside the bracket (1), and the cavity (5) communicates with the casing (2). A blower (6) and a pipeline (7) for delivering wind power into the cavity (5) are provided on the bracket (1). A heating element (8) is provided inside the cavity (5). A condensation mechanism (9) is provided inside the bracket (1) and above the heating element (8). A water collecting tank (10) is installed on the bracket (1).

2. The dehumidification device for a wind turbine according to claim 1, wherein The condensation mechanism (9) includes a condensation plate (91), and the condensation plate (91) is trumpet-shaped with a gradually decreasing opening from bottom to top.

3. The dehumidifying device for a wind turbine according to claim 2, characterized in that, An inlet (101) is provided on the upper side of the water collecting tank (10). A diversion ring (11) is fixedly installed on the inner wall of the cavity (5), and the diversion ring (11) is located at the lower edge of the condensation plate (91). The inlet (101) communicates with the diversion ring (11).

4. The dehumidification device for a wind turbine according to claim 2, wherein A diversion circular plate (12) is fixedly installed on the inner side wall of the condensation plate (91), and the diversion circular plate (12) is directly below the upper opening of the condensation plate (91).

5. The dehumidification device for a wind turbine according to claim 3, characterized in that, An outlet (102) is provided on the lower side of the water collecting tank (10), and a one-way water filtering plate (13) is provided inside the water collecting tank (10).

6. The dehumidifying device for a wind turbine according to claim 4, wherein The outer diameter of the diversion circular plate (12) is larger than the inner diameter of the upper opening of the condensation plate (91).

Images