Ventilation and dust removal device for cabin of wind driven generator

Abstract

The ventilation and dust removal device of the wind driven generator cabin comprises a cabin body, an air inlet frame is fixedly installed at the left end of the bottom of the cabin body, and an air guide shell is fixedly connected to the upper end of an inner cavity of the air inlet frame. Through the arrangement of the air inlet frame, the air guide shell and the axial flow fan, outside airflow can be driven to be quickly blown into the cabin main body, and meanwhile, under the action of the air exhaust frame, the air exhaust shell and the air exhaust opening, the airflow blown into the cabin main body can be exhausted to the outside; meanwhile, through the arrangement of a tail vane and a containing groove, the exhaust shell and the exhaust outlet can be driven to rotate along with the wind direction, so that the exhaust path of the exhaust outlet can follow the wind direction, and the situation that external air directly blows the exhaust outlet to perfuse the interior of the cabin body is effectively avoided; therefore, the ventilation operation in the cabin main body can be normally carried out.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine equipment, specifically to a ventilation and dust removal device for wind turbine nacelles. Background Technology

[0002] In a wind power generation system, the nacelle houses many critical devices, such as generators, gearboxes, and controllers. These devices generate a lot of heat during operation. If the heat cannot be dissipated in a timely and effective manner, it will cause the temperature inside the nacelle to become too high, affecting the performance and lifespan of the equipment. Therefore, ventilation devices are installed inside the wind turbine nacelle to dissipate the heat inside the nacelle.

[0003] However, in the operation of existing wind turbine nacelles, the ventilation system has a fixed exhaust vent orientation. Under the influence of external wind speed and direction, external airflow often flows into the nacelle through the exhaust vent and clashes with the airflow delivered by the ventilation fan, which seriously affects the ventilation effect inside the nacelle. Utility Model Content

[0004] The purpose of this utility model is to provide a ventilation and dust removal device for a wind turbine nacelle, which has the advantages of being able to ventilate the interior of the nacelle while avoiding the influence of external wind speed and direction, which would cause external airflow to flow into the nacelle through the exhaust port, thus ensuring that the ventilation operation can maintain stable operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation and dust removal device for a wind turbine nacelle, comprising:

[0006] The main body of the nacelle has an air inlet frame fixedly installed at the bottom left end, an air guide shell fixedly connected to the upper end of the inner cavity of the air inlet frame, and an axial flow fan fixedly installed at the middle end of the air guide shell.

[0007] An exhaust frame is provided, with the upper end of its outer surface fixedly installed at the right end of the bottom of the main body of the cabin. A receiving groove is provided at the lower end of the outer surface of the exhaust frame. An exhaust shell is movably connected to the surface of the receiving groove. An exhaust port is provided at the lower end of the back of the exhaust shell. A tail rudder is fixedly connected to both ends of the bottom of the outer surface of the exhaust shell.

[0008] As a preferred embodiment, a dust filter is fixedly installed at the lower end of the inner cavity of the air inlet frame, and the dust filter is V-shaped.

[0009] As a preferred embodiment, a protective mesh cover is fixedly installed at the bottom of the air inlet frame, and a protective mesh plate is fixedly installed at the lower end of the back of the exhaust shell and behind the exhaust port.

[0010] As a preferred embodiment, a reinforcing crossbar is fixedly connected between both ends of the two tail rudders, and the top of the reinforcing crossbar is fixedly connected to the bottom of the outer surface of the exhaust casing. The two tail rudders are arranged in parallel.

[0011] As a preferred embodiment, a guide plate is fixedly connected to the bottom of the inner cavity of the exhaust shell, and a grid plate is fixedly installed on the top of the exhaust frame.

[0012] As a preferred embodiment, the receiving groove is annular in shape, and a movable ball bearing is movably connected between the surface of the receiving groove and the upper end of the exhaust shell.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the arrangement of an air inlet frame, an air guide shell, and an axial flow fan, can rapidly blow external airflow into the interior of the engine compartment. Simultaneously, under the action of the exhaust frame, exhaust shell, and exhaust port, the airflow blown into the engine compartment can be exhausted to the outside, thereby achieving the purpose of ventilation inside the engine compartment. At the same time, through the arrangement of the tail rudder and the receiving slot, the exhaust shell and exhaust port can be rotated with the wind direction, so that the exhaust path of the exhaust port can follow the wind direction, effectively preventing external air from blowing directly into the engine compartment and ensuring that the ventilation operation inside the engine compartment can proceed normally. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a top view sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the air inlet frame of this utility model;

[0018] Figure 4 This is a bottom view of the exhaust frame structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the exhaust frame of this utility model on the right side.

[0020] In the diagram: 1. Main body of the nacelle; 2. Air inlet frame; 3. Air outlet frame; 4. Grille; 5. Air guide shell; 6. Protective mesh cover; 7. Dust filter; 8. Axial flow fan; 9. Air outlet shell; 10. Reinforcing crossbar; 11. Tail rudder; 12. Protective mesh plate; 13. Receiving slot; 14. Moving ball bearing; 15. Air guide plate; 16. Air outlet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] The components of this application, such as the main body of the cabin 1, air inlet frame 2, air outlet frame 3, grille plate 4, air guide shell 5, protective net cover 6, dust filter 7, axial flow fan 8, air outlet shell 9, reinforcing crossbar 10, tail rudder 11, protective net plate 12, receiving groove 13, movable ball bearing 14, air guide plate 15, and air outlet 16, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0024] Example 1:

[0025] Please see Figures 1-5 As shown, this utility model provides a ventilation and dust removal device for a wind turbine nacelle, comprising:

[0026] The main body of the nacelle 1 has an air inlet frame 2 fixedly installed at the bottom left end of the main body of the nacelle 1. An air guide shell 5 is fixedly connected to the upper end of the inner cavity of the air inlet frame 2, and an axial flow fan 8 is fixedly installed at the middle end of the air guide shell 5.

[0027] The upper end of the outer surface of the exhaust frame 3 is fixedly installed at the right end of the bottom of the main body 1 of the cabin. The lower end of the outer surface of the exhaust frame 3 is provided with a receiving groove 13. The surface of the receiving groove 13 is movably connected to the exhaust shell 9. The lower end of the back of the exhaust shell 9 is provided with an exhaust port 16. The two ends of the bottom of the outer surface of the exhaust shell 9 are fixedly connected to the tail rudder 11.

[0028] In this technical solution, when the equipment inside the main body 1 of the cabin is running, the axial flow fan 8 drives the outside air through the air inlet frame 2 and the air guide shell 5, and quickly blows it into the interior of the main body 1 of the cabin. The rapidly blown airflow can carry away the heat inside the main body 1 of the cabin and exhaust it to the outside through the exhaust frame 3, the exhaust shell 9 and the exhaust port 16 at the tail, so as to achieve the effect of ventilation inside the main body 1 of the cabin. At the same time, through the setting of the tail rudder 11, under the influence of the wind force and wind direction at high altitude, the tail rudder 11 can rotate with the wind direction and drive the exhaust shell 9 to rotate along the surface of the receiving groove 13. This causes the exhaust path of the exhaust port 16 at the tail of the exhaust shell 9 to follow the wind direction, which effectively prevents the outside air from blowing directly into the interior of the main body 1 of the cabin, thereby ensuring that the ventilation operation inside the main body 1 of the cabin can be carried out normally.

[0029] Example 2:

[0030] Based on Embodiment 1, this utility model is as follows: Figures 2-5 As shown, a dust filter 7 is fixedly installed at the lower end of the inner cavity of the air inlet frame 2. The dust filter 7 is V-shaped. A protective mesh cover 6 is fixedly installed at the bottom of the air inlet frame 2. A protective mesh plate 12 is fixedly installed at the lower end of the back of the exhaust shell 9 and behind the exhaust port 16. A reinforcing crossbar 10 is fixedly connected between the two ends of the two tail rudders 11. The top of the reinforcing crossbar 10 is fixedly connected to the bottom of the outer surface of the exhaust shell 9. The two tail rudders 11 are arranged in parallel. A guide plate 15 is fixedly connected to the bottom of the inner cavity of the exhaust shell 9. A grid plate 4 is fixedly installed on the top of the exhaust frame 3. The shape of the receiving groove 13 is annular. A movable ball bearing 14 is movably connected between the surface of the receiving groove 13 and the upper end of the exhaust shell 9.

[0031] In this technical solution, the dust filter 7 effectively filters the dust in the airflow delivered by the axial fan 8 within the air inlet frame 2, preventing a large amount of dust from entering the main body 1 of the engine compartment and affecting the normal operation of the equipment. The V-shaped design effectively increases the windward area of ​​the dust filter 7, allowing the airflow to circulate more quickly. The protective mesh cover 6 and the protective mesh plate 12 provide protection for the bottom of the air inlet frame 2 and the rear of the exhaust port 16. The reinforcing crossbar 10 effectively improves the connection strength between the tail rudder 11 and the exhaust shell 9. The air guide plate 15 guides the airflow inside the exhaust shell 9. The grille plate 4 protects the top of the exhaust frame 3, preventing personnel from falling into the exhaust frame 3 during maintenance of the main body 1 of the engine compartment. The movable ball bearing 14 supports the exhaust shell 9 and the receiving groove 13, effectively reducing the resistance encountered by the exhaust shell 9 when rotating.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A ventilation and dust removal device for a wind turbine nacelle, characterized in that, include: The main body of the cabin (1) has an air inlet frame (2) fixedly installed at the bottom left end of the main body of the cabin (1), and an air guide shell (5) fixedly connected to the upper end of the inner cavity of the air inlet frame (2), and an axial flow fan (8) fixedly installed at the middle end of the air guide shell (5). An exhaust frame (3) is fixedly installed at the upper end of the outer surface of the exhaust frame (3) at the bottom right end of the main body of the cabin (1). A receiving groove (13) is provided at the lower end of the outer surface of the exhaust frame (3). An exhaust shell (9) is movably connected to the surface of the receiving groove (13). An exhaust port (16) is provided at the lower end of the back of the exhaust shell (9). A tail rudder (11) is fixedly connected to both ends of the bottom of the outer surface of the exhaust shell (9).

2. A ventilation and dust removal arrangement for a wind generator nacelle according to claim 1, characterized in that: A dust filter (7) is fixedly installed at the lower end of the inner cavity of the air inlet frame (2), and the dust filter (7) is V-shaped.

3. The ventilation and dust removal device for a wind power generator nacelle according to claim 1, characterized in that: A protective mesh cover (6) is fixedly installed at the bottom of the air inlet frame (2), and a protective mesh plate (12) is fixedly installed at the lower end of the back of the exhaust shell (9) and behind the exhaust port (16).

4. The ventilation and dust removal device for a wind power generator nacelle according to claim 1, characterized in that: A reinforcing crossbar (10) is fixedly connected between the two ends of the two tail rudders (11). The top of the reinforcing crossbar (10) is fixedly connected to the bottom of the outer surface of the exhaust shell (9). The two tail rudders (11) are arranged in parallel.

5. The ventilation and dust removal device for a wind power generator nacelle according to claim 1, characterized in that: A guide plate (15) is fixedly connected to the bottom of the inner cavity of the exhaust shell (9), and a grid plate (4) is fixedly installed on the top of the exhaust frame (3).

6. The ventilation and dust removal device for the wind turbine nacelle according to claim 1, characterized in that: The receiving groove (13) is annular in shape, and a movable ball bearing (14) is movably connected between the surface of the receiving groove (13) and the upper end of the exhaust shell (9).

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