A sealing door of a wind power tower and a wind turbine tower

Abstract

The application provides a sealing door of a wind power tower and a wind turbine tower, belonging to the technical field of wind power tower maintenance, comprising a door frame, an outer door plate, an inner door plate, a ventilation hole and a locking device, the outer door plate is opened from the outside of the tower, the inner door plate is a door plate with a ventilation hole, and the inner door plate is opened from the inside of the tower; when it is not necessary to enter the tower for maintenance, the inner door plate and the outer door plate are connected through the locking device, so that the inner door plate and the outer door plate are respectively attached to the two sides of a sealing part, the ventilation hole of the inner door plate is blocked by the outer door plate, and the sealing property of the sealing door is ensured. When a staff needs to enter the inside of the tower for maintenance, the locking device is first opened, then the outer door plate is opened, then the maintenance personnel close the inner door plate from the inside of the tower, the tower is locked on the basis of ensuring that the inside and outside of the tower are ventilated smoothly, animals or other irrelevant personnel are prevented from entering the inside of the tower at will, the work of the maintenance personnel is affected, and safety hazards are reduced.

Description

Technical Field

[0001] This application belongs to the field of wind power tower maintenance technology, specifically relating to a sealing door for a wind power tower and a wind turbine generator tower. Background Technology

[0002] Wind energy is the kinetic energy generated by the movement of large amounts of air across the Earth's surface. Differences in temperature due to solar radiation and variations in water vapor content in the air create pressure differences across the land. This causes high-pressure air to flow horizontally towards low-pressure areas, forming wind. Wind energy resources are determined by wind energy density and the annual cumulative number of usable wind energy hours. Wind turbine towers are the supports used in wind turbine generators, primarily providing structural support and absorbing vibrations from the generator.

[0003] Tower doors are typically located at the bottom of the wind turbine tower and serve as the only entrance for routine maintenance. When personnel need to enter the tower for inspection, the tower door must be opened. However, once inside, maintenance personnel usually leave the tower door open for ventilation to ensure proper airflow. Since wind turbines are typically installed in farmland or on high mountains, keeping the tower door open for extended periods could allow animals or passersby to enter, affecting the work of maintenance personnel and creating safety hazards. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the first aspect of this utility model provides a sealing door for a wind power generation tower.

[0006] The second aspect of this utility model provides a wind turbine generator tower.

[0007] In view of this, a sealing door for a wind power tower is provided according to a first aspect of the embodiments of this application, comprising: A door frame, including a sealing part, is located at the bottom of the tower. The outer door panel is located on the outside of the door frame and is rotatably connected to the door frame. The inner door panel is located inside the door frame and is rotatably connected to the door frame. Ventilation holes are located on the inner door panel; The locking device connects the outer door panel and the inner door panel. The locking device makes the outer door panel fit against one side of the sealing part, and the locking device makes the inner door panel fit against the other side of the sealing part.

[0008] In one feasible implementation, the sealing door of the wind turbine tower further includes: The first door lock is located on the side of the outer door panel away from the inner door panel, and the first door lock fixes the outer door panel to the door frame.

[0009] In one feasible implementation, the sealing door of the wind turbine tower further includes: The second door lock is located on the side of the inner door panel away from the outer door panel, and it securely connects the inner door panel to the door frame.

[0010] In one feasible implementation, the locking device includes: A pull rod that passes through the inner and outer door panels; The nut is fitted onto the outside of the pull rod and is threaded to the pull rod. The nut fits against the side of the outer door panel away from the inner door panel, pressing the inner and outer door panels tightly against the sealing part.

[0011] In one feasible implementation, the pull rod includes: The rod passes through the inner and outer door panels; The limiting part has a vertical rod and fits against the side of the inner door panel away from the outer door panel.

[0012] In one feasible implementation, the sealing door of the wind turbine tower further includes: A vertical hole is formed on the inner door panel and extends along the length of the inner door panel; the length of the vertical hole is not less than the length of the limiting part, and the width of the vertical hole is not less than the width of the rod. A circular hole is made on the outer door panel, and the size of the circular hole is adapted to the cross-sectional dimensions of the rod. The tie rod passes through both the vertical hole and the circular hole.

[0013] In one feasible implementation, the sealing door of the wind turbine tower further includes: A sealing gasket is placed on the end face of the nut facing the outer door panel.

[0014] In one feasible implementation, the sealing part is provided on the inner opening of the door frame along the circumference of the door frame; The sealing doors of wind turbine towers also include: The first sealing protrusion is disposed along the circumference of the outer door panel on the side of the outer door panel facing the inner door panel, and the first sealing protrusion fits into the sealing part.

[0015] In one feasible implementation, the sealing part is provided on the inner opening of the door frame along the circumference of the door frame; The sealing doors of wind turbine towers also include: The second sealing protrusion is arranged along the circumference of the inner door panel on the side of the inner door panel facing the outer door panel, and the second sealing protrusion fits into the sealing part.

[0016] According to a second aspect of the embodiments of this application, a wind turbine tower is provided, including: a sealing door for a wind turbine tower as described in any of the above technical solutions.

[0017] The sealing door of the wind turbine tower and the wind turbine generator tower of this application have the following advantages compared with the prior art: The sealing door of the wind turbine tower provided in this application embodiment includes a door frame, an outer door panel, an inner door panel, ventilation holes, and a locking device. The outer door panel opens from the outside of the tower, while the inner door panel, which has ventilation holes, opens from the inside of the tower. When maintenance is not required, the inner and outer door panels are connected by the locking device, allowing them to fit against the sides of the sealing part. The outer door panel blocks the ventilation holes of the inner door panel, ensuring the sealing door's airtightness. When maintenance personnel need to enter the tower for maintenance, the locking device is first opened, then the outer door panel is opened, and then the maintenance personnel close the inner door panel from the inside of the tower. This ensures unobstructed ventilation between the inside and outside of the tower while locking the tower, preventing animals or other unrelated personnel from entering and affecting the maintenance personnel's work, and reducing safety hazards. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic structural diagram of the sealing door of a wind power generation tower according to an embodiment of this application, showing the first angle. Figure 2 A schematic structural diagram of the outer door panel of a wind power generation tower according to an embodiment of this application; Figure 3 A schematic structural diagram of the inner door panel of a wind power generation tower according to an embodiment of this application; Figure 4 A schematic structural diagram of a locking device for a wind power generation tower according to an embodiment of this application; in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows: 11. Tower; 12. Door frame; 13. Outer door panel; 14. Inner door panel; 15. Ventilation hole; 16. Locking device; 17. First door lock; 18. Second door lock; 19. Vertical hole; 21. Sealing gasket; 22. First sealing protrusion; 23. Second sealing protrusion; 121. Sealing part; 161. Tie rod; 162. Nut; 1611, Rod body; 1612, Limiting part. Detailed Implementation

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0023] like Figures 1 to 3As shown, according to a first aspect of the embodiments of this application, a sealing door for a wind power generation tower is proposed, comprising: a door frame 12, an outer door panel 13, an inner door panel 14, a ventilation hole 15, and a locking device 16; the door frame 12 includes a sealing part 121, and the door frame 12 is disposed at the bottom of the tower 11; the outer door panel 13 is located on the outside of the door frame 12, and the outer door panel 13 is rotatably connected to the door frame 12; the inner door panel 14 is located on the inside of the door frame 12, and the inner door panel 14 is rotatably connected to the door frame 12; the ventilation hole 15 is disposed on the inner door panel 14; the locking device 16 connects the outer door panel 13 and the inner door panel 14, the locking device 16 causing the outer door panel 13 to fit against one side of the sealing part 121, and the locking device 16 causing the inner door panel 14 to fit against the other side of the sealing part 121; wherein, the outer side of the door frame 12 is the side of the door frame 12 facing the outside of the tower 11, and the inner side of the door frame 12 is the side of the door frame 12 facing the inside of the tower 11.

[0024] The sealing door of the wind power tower provided in this application embodiment includes a door frame 12, an outer door panel 13, an inner door panel 14, a ventilation hole 15, and a locking device 16. The outer door panel 13 opens from the outside of the tower 11, and the inner door panel 14 is a door panel with a ventilation hole 15, which opens from the inside of the tower 11. When it is not necessary to enter the tower 11 for maintenance, the inner door panel 14 and the outer door panel 13 are connected by the locking device 16, so that the inner door panel 14 and the outer door panel 13 are respectively attached to both sides of the sealing part 121. The outer door panel 13 blocks the ventilation hole 15 of the inner door panel 14, thus ensuring the sealing performance of the sealing door. When staff need to enter the tower 11 for maintenance, they should first open the locking device 16, then open the outer door panel 13, and then close the inner door panel 14 from inside the tower 11. While ensuring unobstructed ventilation inside and outside the tower 11, the tower 11 should be locked to prevent animals or other unrelated personnel from entering the tower 11 at will, affecting the work of maintenance personnel and reducing safety hazards.

[0025] like Figure 2 As shown, in one feasible embodiment, the sealing door of the wind power tower further includes: a first door lock 17, which is disposed on the side of the outer door panel 13 away from the inner door panel 14, and the first door lock 17 fixes the outer door panel 13 to the door frame 12.

[0026] In this technical solution, the first door lock 17 is used to lock the outer door panel 13 from the outside of the tower 11. After the maintenance personnel have completed the maintenance, the maintenance personnel lock the outer door panel 13 from the outside of the tower 11 to prevent unrelated personnel from entering the tower 11.

[0027] like Figure 3 As shown, in one feasible embodiment, the sealing door of the wind power tower further includes a second door lock 18, which is disposed on the side of the inner door panel 14 away from the outer door panel 13, and the second door lock 18 fixes the inner door panel 14 to the door frame 12.

[0028] In this technical solution, the second door lock 18 is used to lock the inner door panel 14 from inside the tower 11. After the maintenance personnel enter the tower 11, they lock the inner door panel 14 from inside the tower 11, so that the inner door panel 14 can only be opened from inside the tower 11, that is, the inner door panel 14 cannot be opened from inside the tower 11, thus ensuring the safety of the maintenance personnel carrying out maintenance work inside the tower 11.

[0029] like Figure 1 As shown, in one feasible embodiment, the locking device 16 includes: a pull rod 161 and a nut 162; the pull rod 161 passes through the inner door panel 14 and the outer door panel 13; the nut 162 is fitted on the outside of the pull rod 161, the nut 162 is threadedly connected to the pull rod 161, and the nut 162 is in contact with the side of the outer door panel 13 away from the inner door panel 14, pressing the inner door panel 14 and the outer door panel 13 tightly against the sealing part 121.

[0030] In this technical solution, after maintenance is completed, maintenance personnel install a pull rod 161 on the outside, so that the pull rod 161 passes through the inner door panel 14 and the outer door panel 13. By installing a nut 162 on the pull rod 161, the inner door panel 14 and the outer door panel 13 are fastened by the nut 162, so that the inner door panel 14 and the outer door panel 13 are tightly fitted to the two sides of the sealing part 121 respectively, ensuring the sealing performance of the sealing door.

[0031] like Figure 1 and 4 As shown, in one feasible embodiment, the pull rod 161 includes: a rod body 1611 and a limiting part 1612; the rod body 1611 passes through the inner door panel 14 and the outer door panel 13; the limiting part 1612 is perpendicular to the rod body 1611 and fits against the side of the inner door panel 14 away from the outer door panel 13.

[0032] In this technical solution, after the nut 162 is tightened, the limiting part 1612 fits against the inner side of the inner door panel 14, and the nut 162 fits against the outer side of the outer door panel 13, so that the inner door panel 14 and the outer door panel 13 are pressed tightly against the sealing part 121 by the limiting part 1612 and the nut 162.

[0033] like Figure 3 As shown, in one feasible embodiment, the sealing door of the wind power tower further includes: a vertical hole 19 and a circular hole; the vertical hole 19 is opened on the inner door plate 14 and extends along the length direction of the inner door plate 14; the length of the vertical hole 19 is not less than the length of the limiting part 1612, and the width of the vertical hole 19 is not less than the width of the rod 1611; the circular hole is opened on the outer door plate 13, and the size of the circular hole is adapted to the cross-sectional size of the rod 1611; wherein, the tie rod 161 passes through the vertical hole 19 and the circular hole.

[0034] In this technical solution, the inner door panel 14 is provided with a vertical hole 19. After the inner door panel 14 is closed from the outside, the limiting part 1612 of the pull rod 161 passes through the inner door panel 14 from the outside, and then the pull rod 161 is rotated to limit the inner door panel 14 through the limiting part 1612. When it is necessary to connect the inner door panel 14 and the outer door panel 13 through the locking device 16, the limiting part 1612 and the rod 1611 pass through the inner door panel 14 in sequence, and then the rod 1611 is rotated to make the limiting part 1612 rotate and engage with the inner door panel 14, and the rod 1611 passes through the circular hole. Then the nut 162 is installed on the rod 1611 and tightened. The nut 162 and the limiting part 1612 cooperate to connect the inner door panel 14 and the outer door panel 13, and press the inner door panel 14 and the outer door panel 13 tightly on the sealing part 121.

[0035] like Figure 1 As shown, in one feasible embodiment, the sealing door of the wind power tower further includes a sealing gasket 21, which is disposed on the end face of the nut 162 facing the outer door panel 13.

[0036] In this technical solution, the sealing gasket 21 is placed on the contact surface between the nut 162 and the outer door panel 13, so as to seal the circular hole through the sealing gasket 21 and ensure the sealing performance of the outer door panel 13 after the hole is opened.

[0037] like Figure 1 As shown, in one feasible embodiment, the sealing part 121 is disposed on the inner opening of the door frame 12 along the circumference of the door frame 12; the sealing door of the wind power generation tower further includes: a first sealing protrusion 22, which is disposed on the side of the outer door panel 13 facing the inner door panel 14 along the circumference of the outer door panel 13, and the first sealing protrusion 22 is in contact with the sealing part 121.

[0038] In this technical solution, the first sealing protrusion 22 is arranged along the circumference of the outer door panel 13 on the contact surface between the outer door panel 13 and the sealing part 121. By contacting the sealing part 121 with the first sealing protrusion 22, the circumferential gap between the outer door panel 13 and the sealing part 121 is further sealed, ensuring the tightness of the contact between the outer door panel 13 and the door frame 12.

[0039] Furthermore, the first sealing protrusion 22 is elastic. The first sealing protrusion 22 deforms under the pressure of the outer door panel 13 and the sealing part 121, ensuring that the first sealing protrusion 22 and the sealing part 121 fit tightly together.

[0040] like Figure 1As shown, in one feasible embodiment, the sealing part 121 is disposed on the inner opening of the door frame 12 along the circumference of the door frame 12; the sealing door of the wind power generation tower further includes: a second sealing protrusion 23, which is disposed on the side of the inner door panel 14 facing the outer door panel 13 along the circumference of the inner door panel 14, and the second sealing protrusion 23 is in contact with the sealing part 121.

[0041] In this technical solution, the second sealing protrusion 23 is arranged circumferentially on the contact surface between the inner door panel 14 and the sealing part 121. By contacting the sealing part 121 with the second sealing protrusion 23, the gap between the inner door panel 14 and the sealing part 121 in the circumferential direction is further sealed, ensuring the tightness of the contact between the inner door panel 14 and the door frame 12.

[0042] Furthermore, the second sealing protrusion 23 is elastic. The second sealing protrusion 23 is deformed by the pressure of the inner door panel 14 and the sealing part 121, ensuring that the second sealing protrusion 23 and the sealing part 121 fit tightly together.

[0043] According to a second aspect of this application, a wind turbine tower is proposed, comprising: a sealing door of the wind turbine tower as described in any of the above technical solutions.

[0044] The wind turbine tower provided in this application includes a sealing door as described in any of the above-mentioned technical solutions. Therefore, the wind turbine tower has all the beneficial effects of the sealing door of the wind turbine tower described in the above-mentioned technical solutions, which will not be elaborated here.

[0045] Specifically, wind turbine towers can include steel wind turbine towers and concrete wind turbine towers.

[0046] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A sealing door for a wind power generation tower, characterized in that, The sealing doors of the wind power tower include: A door frame, the door frame including a sealing part, the door frame being disposed at the bottom of the tower; An outer door panel, located on the outside of the door frame, is rotatably connected to the door frame; An inner door panel, located inside the door frame, is rotatably connected to the door frame; Ventilation openings are provided on the inner door panel; A locking device is provided, which connects the outer door panel to the inner door panel, and the locking device causes the outer door panel to fit against one side of the sealing part, and the locking device causes the inner door panel to fit against the other side of the sealing part.

2. The sealing door of a wind power generation tower according to claim 1, characterized in that, The sealing door of the wind power tower also includes: The first door lock is located on the side of the outer door panel away from the inner door panel, and the first door lock fixes the outer door panel to the door frame.

3. The sealing door of a wind power generation tower according to claim 1, characterized in that, The sealing door of the wind power tower also includes: The second door lock is located on the side of the inner door panel opposite to the outer door panel, and the second door lock fixes the inner door panel to the door frame.

4. The sealing door of a wind power generation tower according to claim 1, characterized in that, The locking device includes: A pull rod that passes through the inner door panel and the outer door panel; A nut is fitted onto the outside of the pull rod and is threaded to the pull rod. The nut fits against the side of the outer door panel away from the inner door panel, pressing the inner door panel and the outer door panel tightly against the sealing part.

5. A sealing door for a wind power generation tower according to claim 4, characterized in that, The pull rod includes: A rod that passes through the inner door panel and the outer door panel; The limiting part is perpendicular to the rod body and is attached to the side of the inner door panel away from the outer door panel.

6. The sealing door of a wind power generation tower according to claim 5, characterized in that, The sealing door of the wind power tower also includes: A vertical hole is formed on the inner door panel and extends along the length of the inner door panel; the length of the vertical hole is not less than the length of the limiting part, and the width of the vertical hole is not less than the width of the rod. A circular hole is provided on the outer door panel, and the size of the circular hole is adapted to the cross-sectional dimensions of the rod. The pull rod passes through the vertical hole and the circular hole.

7. A sealing door for a wind power generation tower according to claim 4, characterized in that, The sealing door of the wind power tower also includes: A sealing gasket is disposed on the end face of the nut facing the outer door panel.

8. A sealing door for a wind power generation tower according to any one of claims 1 to 7, characterized in that, The sealing part is provided on the inner opening of the door frame along the circumference of the door frame; The sealing door of the wind power tower also includes: A first sealing protrusion is disposed circumferentially on the side of the outer door panel facing the inner door panel, and the first sealing protrusion is in contact with the sealing part.

9. A sealing door for a wind power generation tower according to any one of claims 1 to 7, characterized in that, The sealing part is provided on the inner opening of the door frame along the circumference of the door frame; The sealing door of the wind power tower also includes: The second sealing protrusion is disposed circumferentially on the side of the inner door panel facing the outer door panel, and the second sealing protrusion is in contact with the sealing part.

10. A wind turbine generator tower, characterized in that, Including the sealing door of the wind power generation tower as described in any one of claims 1 to 9.

Images