Wind power tower with built-in transformer

Abstract

The utility model discloses a wind power tower with a built-in transformer, which comprises a tower tube, a transformer, a transformer and a power supply device, and is characterized in that the tower tube is of a tubular structure arranged along the vertical direction; the bottom platform is arranged in the tower drum, a transformer is arranged between the bottom platform and the foundation platform at the bottom of the tower drum, and a tower drum inlet is formed in the joint of the tower drum and the bottom platform; the door outer ladder is arranged outside the tower drum, the top end of the door outer ladder is in butt joint with the tower drum inlet, and the bottom end of the door outer ladder is in butt joint with the ground on the periphery of the tower drum. According to the wind power tower with the built-in transformer, the transformer is arranged between the foundation platform and the bottom platform in the tower barrel, the occupied area needed by the wind power tower is reduced, and therefore the investment cost of a wind power project is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power equipment, and more specifically to a wind power tower with a built-in transformer. Background Art

[0002] With the continuous development of economy and the acceleration of urbanization, land resources are becoming increasingly scarce, and the cost of land acquisition will naturally increase. For wind power projects, this not only affects the initial investment cost of the project, but may also affect the overall economic benefits of the project.

[0003] In existing wind power projects, transformers are placed outside wind turbine towers. Owners need to acquire land and reinforce the foundation for the installation location of the transformer, which significantly increases the investment cost of wind power projects.

[0004] In summary, how to reduce the investment cost of wind power projects is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a wind power tower with a built-in transformer, which reduces the floor space required for the wind power tower by arranging the transformer between the foundation platform and the bottom platform in the tower, thereby reducing the investment cost of the wind power project.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A wind power tower with a built-in transformer, comprising:

[0008] The tower is a cylindrical structure arranged in the vertical direction;

[0009] A bottom platform is arranged in the tower, a transformer is arranged between the bottom platform and the base platform at the bottom of the tower, and a tower entrance is arranged at the connection between the tower and the bottom platform;

[0010] The outer ladder is arranged outside the tower, the top end of the outer ladder is connected to the tower entrance, and the bottom end of the outer ladder is connected to the ground around the tower.

[0011] Preferably, the bottom platform includes a first platform plate, a first platform frame, a first cable tray and a first connecting member. The first platform frame is overlapped along a criss-cross pattern. The first platform plate is provided with multiple cables and all are detachably connected to the first platform frame. The first cable tray is arranged at the lower end of the first platform frame. The first connecting member is used to realize the connection between the first platform frame and the inner wall of the tower.

[0012] Preferably, a ring main unit and a water cooling cabinet are provided on the upper end surface of the bottom platform, and the transformer is arranged in the middle position of the base platform.

[0013] Preferably, a transformer maintenance hanging beam is provided above the bottom platform, the transformer maintenance hanging beam comprises a hanging beam bracket and two hanging beams, and the transformer maintenance hanging beam is used for hanging the transformer coil.

[0014] Preferably, an elevator inverter platform is provided above the transformer maintenance beam, the elevator inverter platform comprises a second platform plate, a second platform frame, a second cable tray, a second connecting piece and a first elevator guardrail, and an inverter is provided on the upper surface of the elevator inverter platform.

[0015] Preferably, a flange platform is provided on the top of the tower, and the flange platform includes a third platform plate, a third platform frame, a third connecting member and a second elevator guardrail, and the second elevator guardrail, the third platform plate and the third platform frame are all detachably connected.

[0016] Preferably, a lifting system is provided in the tower, and the lifting system comprises a ladder and an elevator, and the elevator can move up and down along the ladder.

[0017] Preferably, the outer ladder is detachably connected to the tower, and leveling devices are provided on multiple supporting legs of the outer ladder.

[0018] Preferably, a water-cooling radiator is provided on the outer ladder, and the water-cooling radiator is connected to the water cooling cabinet through a water pipe.

[0019] Preferably, a fourth cable tray and a fifth cable tray are provided on the inner wall of the tower, the fourth cable tray extends from the bottom of the tower to the lower end of the bottom platform, and the fifth cable tray extends from the upper end of the transformer to the top of the tower.

[0020] The utility model provides a wind power tower with a built-in transformer, wherein a basic platform is arranged at the bottom of the tower, a transformer is arranged on the basic platform, a bottom platform is arranged above the transformer, a tower entrance is arranged at the connection between the bottom platform and the tower, an outer ladder arranged outside the tower corresponds to the tower entrance, and the inside of the tower can be entered from the outside of the tower through the outer ladder. Since the transformer is arranged inside the tower, there is no need to specially requisition land and reinforce the foundation of the transformer outside the tower, thereby reducing the initial investment cost of the wind power project. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of a wind power tower with a built-in transformer provided by the utility model;

[0023] Figure 2 A top view of the bottom of the tower provided by the utility model;

[0024] Figure 3 A schematic diagram of the structure of the bottom platform provided by the utility model;

[0025] Figure 4 for Figure 3 A schematic diagram of the structure of the bottom platform after partially disassembling the first platform plate and the first platform frame;

[0026] Figure 5 A schematic diagram of the structure of the transformer maintenance hanging beam provided by the utility model;

[0027] Figure 6 A schematic diagram of the structure of the elevator converter platform provided by the utility model;

[0028] Figure 7 for Figure 6 A schematic diagram of the structure of the elevator converter platform after partially disassembling the second platform plate, the second platform frame and the first elevator guardrail;

[0029] Figure 8 This is a schematic diagram of the structure of the flange platform provided by the utility model;

[0030] Fig. 9 for Figure 8 A schematic diagram of the structure of the flange platform after the third platform plate, the third platform frame and the second elevator guardrail are partially disassembled;

[0031] Fig.10 A schematic diagram of the structure of the lifting system provided by the utility model;

[0032] Fig.11 A schematic diagram of the structure of the external ladder provided by the utility model;

[0033] Fig.12 This is a schematic structural diagram of the water cooling system provided by the utility model.

[0034] Reference numerals:

[0035] 1-tower; 2-bottom platform; 3-transformer; 4-outdoor ladder; 5-ring main unit; 6-water cooling cabinet; 7-transformer maintenance beam; 8-elevator converter platform; 9-converter; 10-flange platform; 11-ladder; 12-elevator; 13-water cooling radiator; 14-water pipe; 15-fourth cable tray; 16-fifth cable tray; 17-middle beam

[0036] 201-first platform plate; 202-first platform frame; 203-first cable tray; 204-first connecting piece;

[0037] 801-second platform plate; 802-second platform frame; 803-second cable tray; 804-second connecting piece; 805-first elevator guardrail;

[0038] 1001 - the third platform plate; 1002 - the third platform frame; 1003 - the third connecting piece; 1004 - the second elevator guardrail. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The core of the utility model is to provide a wind power tower with a built-in transformer. The wind power tower arranges the transformer inside the tower, thereby reducing the investment cost of the wind power project.

[0041] It should be noted that the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0042] The present application provides a wind power tower with a built-in transformer, comprising: a tower 1, a bottom platform 2, a transformer 3 and an outer ladder 4;

[0043] The tower 1 is a cylindrical structure arranged in the vertical direction;

[0044] The bottom platform 2 is arranged in the tower 1, a transformer 3 is arranged between the bottom platform 2 and the foundation platform at the bottom of the tower 1, and a tower entrance is arranged at the connection between the tower 1 and the bottom platform 2;

[0045] The outer ladder 4 is arranged outside the tower 1 , the top end of the outer ladder 4 is connected to the tower entrance, and the bottom end of the outer ladder 4 is connected to the ground around the tower 1 .

[0046] Specifically, the structure of the tower 1 can be referred to in the attached Figure 1 The structure of the outer ladder 4 can refer to the attached Fig.11 The tower 1 is arranged in the vertical direction, the transformer 3 is arranged on the foundation platform at the bottom of the tower 1, a bottom platform 2 is arranged above the transformer 3, a tower entrance is arranged at the joint of the bottom platform 2 and the tower 1, and the tower 1 can be entered from the ground through the ladder 4 outside the door. Since the transformer 3 is arranged between the bottom platform 2 and the foundation platform in the tower 1, there is no need to requisition land outside the tower 1 and reinforce the foundation separately, which reduces the initial investment of the wind power project.

[0047] On the basis of the above embodiment, the bottom platform 2 includes a first platform plate 201, a first platform frame 202, a first cable tray 203 and a first connecting member 204. The first platform frame 202 is overlapped along a tic-tac-toe pattern. The first platform plate 201 is provided with a plurality of cables which are detachably connected to the first platform frame 202. The first cable tray 203 is provided at the lower end of the first platform frame 202. The first connecting member 204 is used to realize the connection between the first platform frame 202 and the inner wall of the tower 1.

[0048] For details, please refer to the attached Figure 3 With attached Figure 4 The first platform frame 202 is divided into two halves, and the two halves of the frame are welded by steel sections, which are mainly used to ensure the supporting strength of the platform. The two halves of the frame are connected by I-beams and bolts in the middle. The first platform plate 201 is assembled with ordinary steel plates. The first platform plate 201 and the first platform frame 202 are detachably connected by bolts. The first cable tray 203 is hung at the bottom of the first platform frame 202 to realize the cable routing of the ring network cabinet 5 and the water cooling cabinet 6 described later.

[0049] On the basis of the above-mentioned embodiment, a ring main unit 5 and a water cooling cabinet 6 are provided on the upper end surface of the bottom platform 2, and the transformer 3 is arranged in the middle position of the base platform.

[0050] Specifically, refer to the attached Figure 2 With attached Figure 4 The transformer 3 is placed on the foundation platform, centered relative to the tower 1, to ensure the maintenance space for the anchor bolts and at the same time meet the maintenance space for the transformer 3. The first platform plate 201 and the connecting I-beam in the middle of the bottom platform 2 can be removed when the transformer 3 is maintained. No components are installed in the middle of the bottom platform 2, to ensure that the transformer coil can be lifted out from the bottom.

[0051] In some embodiments, a transformer maintenance hanging beam 7 is provided above the bottom platform 2. The transformer maintenance hanging beam 7 includes a hanging beam bracket and two hanging beams. The transformer maintenance hanging beam 7 is used to hang the transformer coil.

[0052] For details, please refer to the attached Figure 1 With attached Figure 5 The transformer maintenance hanging beam 7 is arranged above the bottom platform 2, and is composed of a hanging beam bracket and two hanging beams, and is used to hang the transformer coil when the transformer 3 is maintained.

[0053] On the basis of the above embodiment, an elevator inverter platform 8 is provided above the transformer maintenance beam 7, and the elevator inverter platform 8 includes a second platform plate 801, a second platform frame 802, a second cable tray 803, a second connecting piece 804 and a first elevator guardrail 805, and an inverter 9 is provided on the upper surface of the elevator inverter platform 8.

[0054] For details, please refer to the attached Figure 6 With attached Figure 7 The elevator converter platform 8 is composed of a second platform plate 801, a second platform frame 802, a second cable tray 803, and a second connector 804 for welding with the tower wall. This platform is used to install the converter 9, and the two layers of the second cable tray 803 at the bottom are used to fix the cables entering and exiting the converter 9. In addition, the first elevator guardrail 805, the second platform plate 801, and the middle crossbeam 17 used to connect the second platform frame 802 in the middle of the elevator converter platform 8 can be removed. The opening after removal is used to hoist the ring network cabinet 5 and the water cooling cabinet 6 under this platform, and reinstall them after the hoisting of the ring network cabinet 5 and the water cooling cabinet 6 is completed.

[0055] On the basis of the above embodiment, a flange platform 10 is provided at the top of the tower 1, and the flange platform 10 includes a third platform plate 1001, a third platform frame 1002, a third connecting member 1003 and a second elevator guardrail 1004, and the second elevator guardrail 1004, the third platform plate 1001 and the third platform frame 1002 are all detachably connected.

[0056] For details, please refer to the attached Figure 8 With attached Fig. 9 The second elevator guardrail 1004 in the middle of the flange platform 10, the third platform plate 1001, the middle crossbeam 17 for connecting the third platform frame 1002, etc. can be removed. The opening after removal is used to hoist the ring network cabinet 5, water cooling cabinet 6, and converter 9 under this platform, and will be reinstalled after the ring network cabinet 5, water cooling cabinet 6, and converter 9 are hoisted.

[0057] In some embodiments, a lifting system is provided in the tower 1 , and the lifting system includes a ladder 11 and an elevator 12 . The elevator 12 can move up and down along the ladder 11 .

[0058] For details, please refer to the attached Fig.10 The ladder 11 is arranged along the inner wall of the tower 1, and the elevator 12 arranged on the ladder 11 can slide up and down along the ladder 11, and the elevator 12 can drive people and objects to be moved up and down.

[0059] In some embodiments, the outer ladder 4 is detachably connected to the tower 1 , and leveling devices are provided on multiple supporting legs of the outer ladder 4 .

[0060] For details, please refer to the attached Fig.11 Since the transformer 3 is arranged at the bottom of the tower 1, the horizontal height of the bottom platform 2 should be set above the transformer 3 and needs to maintain a certain distance from the transformer 3. After the bottom platform 2 is raised, the outer ladder 4 also needs to be raised synchronously. The outer ladder 4 is divided into two sections, the upper and lower sections, and the entire outer ladder 4 is supported by columns and connecting channel steels. The outer ladder 4 and the outer wall of the tower 1 are fixed with bolts; considering the uneven bottom surface of the guide foundation and the manufacturing error of the support legs of the outer ladder 4, after the 10 supporting legs are installed, it is easy to cause different heights, resulting in instability of the outer ladder. Therefore, it is necessary to add a leveling device to each supporting leg to adjust the height of the supporting leg at the project site to ensure the stability of the outer ladder 4 and ensure the safety of personnel entering and exiting the tower.

[0061] On the basis of the above-mentioned embodiment, a water-cooling radiator 13 is provided on the outer ladder 4 , and the water-cooling radiator 13 is connected to the water cooling cabinet 6 through a water pipe 14 .

[0062] For details, please refer to the attached Fig.12 The transformer 3 is placed at the bottom of the tower 1. Considering that the heat generated by the transformer 3 is relatively large, a water cooling system is used to dissipate the heat of the transformer 3. The water cooling cabinet 6 is arranged on the bottom platform 2. The hot water is introduced into the water cooling radiator 13 through the water pipe 14. The cooled water is introduced into the water cooling cabinet 6 through another water pipe 14, thereby dissipating the heat of the transformer 3 to the outside of the tower 1.

[0063] Based on the above embodiment, a fourth cable tray 15 and a fifth cable tray 16 are provided on the inner wall of the tower 1. The fourth cable tray 15 extends from the bottom of the tower 1 to the lower end of the bottom platform 2, and the fifth cable tray 16 extends from the upper end of the transformer 3 to the top of the tower 1.

[0064] For details, please refer to the attached Figure 2 There are cable trays on both sides of the tower 1. The left cable tray, that is, the fourth cable tray 15, has a length from the bottom of the tower 1 to the first cable tray 203 under the bottom platform 2, and is used to fix the cables of the external ring network cabinet of the wind turbine; the right cable tray, that is, the fifth cable tray 16, has a length from the top of the transformer 3, and its upper end reaches the top of the tower 1, and is used to fix the cables from the transformer 3 to the converter 9.

[0065] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0066] The above is a detailed introduction to a wind power tower with a built-in transformer provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A wind power tower with a built-in transformer, characterized in that: include: The tower (1) is a cylindrical structure arranged in the vertical direction; A bottom platform (2) is arranged in the tower (1), a transformer (3) is arranged between the bottom platform (2) and a base platform at the bottom of the tower (1), and a tower entrance is arranged at the connection between the tower (1) and the bottom platform (2); An external ladder (4) is arranged outside the tower (1), the top end of the external ladder (4) is connected to the tower entrance, and the bottom end of the external ladder (4) is connected to the ground around the tower (1).

2. The wind power tower with built-in transformer according to claim 1, characterized in that: The bottom platform (2) comprises a first platform plate (201), a first platform frame (202), a first cable tray (203) and a first connecting member (204); the first platform frame (202) is overlapped along a tic-tac-toe pattern; the first platform plate (201) is provided with a plurality of cables which are all detachably connected to the first platform frame (202); the first cable tray (203) is provided at the lower end of the first platform frame (202); and the first connecting member (204) is used to realize the connection between the first platform frame (202) and the inner wall of the tower (1).

3. The wind power tower with built-in transformer according to claim 2, characterized in that: A ring network cabinet (5) and a water cooling cabinet (6) are provided on the upper end surface of the bottom platform (2), and the transformer (3) is arranged in the middle position of the base platform.

4. The wind power tower with built-in transformer according to claim 1, characterized in that: A transformer maintenance hanging beam (7) is provided above the bottom platform (2), the transformer maintenance hanging beam (7) comprising a hanging beam bracket and two hanging beams, and the transformer maintenance hanging beam (7) is used for hanging transformer coils.

5. The wind power tower with built-in transformer according to claim 4, characterized in that: An elevator converter platform (8) is provided above the transformer maintenance beam (7), and the elevator converter platform (8) comprises a second platform plate (801), a second platform frame (802), a second cable tray (803), a second connecting piece (804) and a first elevator guardrail (805), and a converter (9) is provided on the upper surface of the elevator converter platform (8).

6. The wind power tower with built-in transformer according to claim 5, characterized in that: A flange platform (10) is provided at the top of the tower (1), and the flange platform (10) comprises a third platform plate (1001), a third platform frame (1002), a third connecting member (1003) and a second elevator guardrail (1004), and the second elevator guardrail (1004), the third platform plate (1001) and the third platform frame (1002) are all detachably connected.

7. The wind power tower with built-in transformer according to claim 1, characterized in that: A lifting system is provided in the tower (1), the lifting system comprising a ladder (11) and a lift (12), and the lift (12) can move up and down along the ladder (11).

8. The wind power tower with built-in transformer according to claim 3, characterized in that: The external ladder (4) is detachably connected to the tower (1), and a plurality of supporting legs of the external ladder (4) are each provided with a leveling device.

9. The wind power tower with built-in transformer according to claim 8, characterized in that: A water cooling radiator (13) is provided on the outer ladder (4), and the water cooling radiator (13) is connected to the water cooling cabinet (6) via a water pipe (14).

10. The wind power tower with built-in transformer according to any one of claims 1 to 9, characterized in that: A fourth cable tray (15) and a fifth cable tray (16) are provided on the inner wall of the tower (1), wherein the fourth cable tray (15) extends from the bottom of the tower (1) to the lower end of the bottom platform (2), and the fifth cable tray (16) extends from the upper end of the transformer (3) to the top of the tower (1).

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