Tower and wind generating set

Abstract

The utility model relates to a tower and a wind generating set, the tower comprises a tower body and a protection device arranged on the tower body, the tower body comprises a plurality of tower pieces which are mutually spliced in the circumferential direction of the tower body, the protection device comprises a sealing piece and a protection cover, the sealing piece comprises sealing parts which are arranged on every two adjacent tower pieces in pairs, and the protection cover is arranged on the sealing parts. Each sealing part is provided with a first surface and a second surface which are oppositely arranged, the first surfaces are connected with the tower fragments in a sealed mode, the sealing pieces are covered with the protective covers, and the protective covers cover the second surfaces of the sealing parts and extend towards the tower fragments. According to the tower and the wind generating set in the embodiment of the invention, the risk of water leakage at the vertical joints of the tower fragments can be reduced, and the service life of the wind generating set is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind power generation, in particular to a tower and a wind turbine generator set. BACKGROUND

[0002] The tower in the wind turbine generator set is a component that bears, bears pressure and bears other types of loads, and its structure directly affects the working reliability of the wind turbine. In order to improve the power generation capacity of the unit, the capacity of the wind turbine generator set is getting larger and larger, and the tower load is getting larger and larger. However, considering the bearing capacity and safety of the wind turbine tower, the diameter of the tower must be increased, and the transportation of the large-diameter tower becomes the bottleneck restricting the development of the wind turbine generator set. The conventional tower design is limited by transportation, and thus the large-diameter segmented tower emerges as the times require.

[0003] The sealing requirement of the tower segment joint is crucial to the later operation of the unit. However, after the tower segments are assembled by vertical flanges, the vertical joint of the tower segments may leak due to the lack of sealing reliability. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a tower and a wind turbine generator set, which can reduce the risk of water leakage at the vertical joint of the tower segments and improve the service life of the wind turbine generator set.

[0005] In one aspect, the present application provides a tower, which comprises a tower body and a protection device arranged on the tower body. The tower body comprises a plurality of tower segments that are mutually spliced along the circumferential direction thereof. The protection device comprises a sealing element and a protection cover. The sealing element comprises a pair of sealing portions arranged on two adjacent tower segments. Each sealing portion has a first surface and a second surface arranged oppositely. The first surface is sealingly connected to the tower segment. The protection cover is arranged on the sealing element and covers the second surfaces of the sealing portions and extends towards the tower segment.

[0006] According to one aspect of the present application, the protection cover comprises a plurality of protection segments arranged successively along the height direction of the tower body. Each protection segment comprises an upper end and a lower end arranged along the height direction. In the two adjacent protection segments, the upper end of the lower protection segment is embedded into the lower end of the upper protection segment.

[0007] According to one aspect of the present application, at least part of the protection segments have the same structure. Each protection segment further comprises a protection body between the upper end and the lower end. The lower end of the protection segment is outwardly expanded relative to the protection body and forms a stepped structure capable of accommodating the upper end of the protection segment.

[0008] According to an aspect of the embodiments of the present application, the sealing member comprises a plurality of sealing sections arranged successively along the height direction of the tower, each sealing section comprises a pair of sub-sealing portions arranged on two adjacent tower segments, the adjacent sub-sealing portions are connected to form a sealing portion, and in at least part of the sealing sections, a first surface of the sub-sealing portion is provided with a connecting portion, and the sub-sealing portion is detachably connected to the tower segment through the connecting portion.

[0009] According to an aspect of the embodiments of the present application, the plurality of sealing sections comprises a first sealing section and a second sealing section, the sub-sealing portion of the first sealing section is fixed on the tower segment, the sub-sealing portion of the second sealing section is connected to the tower segment through the connecting portion, and the second sealing section is arranged between two adjacent first sealing sections along the height direction.

[0010] According to an aspect of the embodiments of the present application, the connecting portion comprises at least one of a magnetic suction sealing portion and a vacuum adsorption portion.

[0011] According to an aspect of the embodiments of the present application, a gap is formed between the pair of sub-sealing portions in the circumferential direction, and the sub-sealing portion comprises an upper end and a lower end arranged along the height direction. In the two adjacent sealing sections, the upper end of the sub-sealing portion located below is embedded into the gap of the lower end of the sub-sealing portion located above.

[0012] According to an aspect of the embodiments of the present application, the sub-sealing portion further comprises a sealing body arranged between the upper end and the lower end along the height direction. The lower end of the sub-sealing portion is outwardly expanded relative to the sealing body in a direction away from the gap, and / or the upper end of the sub-sealing portion is inwardly contracted relative to the sealing body in a direction close to the gap.

[0013] According to an aspect of the embodiments of the present application, the protection device further comprises a protection end cover, the protection end cover is arranged above the sealing member and the protection cover along the height direction of the tower body; and / or the protection device further comprises a connecting member, the protection cover and the sealing member are correspondingly provided with connecting holes, and the connecting member is arranged through the connecting holes and connects the protection cover and the sealing member.

[0014] On the other hand, according to the embodiments of the present application, a wind turbine generator is also provided, which comprises the tower of the above-mentioned embodiments.

[0015] The tower provided by the embodiment of the application is provided with a protection device at the vertical joint of two adjacent tower segments, the protection device comprises a sealing element and a protection cover covering the sealing element, the sealing element comprises a sealing part arranged on the two sides of the joint of the tower segment, and the protection cover covers the side surface of the sealing part away from the tower segment, so as to surround the vertical joint by the sealing part and the protection cover and form physical isolation. When rainwater formed by external precipitation falls on the tower, the rainwater can be blocked by the protection cover and the sealing element at the position of the vertical joint of two adjacent tower segments, the rainwater is effectively prevented from entering the joint, and the risk of corrosion of the metal components, cables and the like in the tower caused by the rainwater entering the tower is reduced, and the service life of the wind turbine generator system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The features, advantages, and technical effects of the exemplary embodiments of the application will be described below with reference to the accompanying drawings.

[0017] Figure 1 is a structural schematic diagram of a wind turbine generator system provided by an embodiment of the application;

[0018] Figure 2 is a structural schematic diagram of a tower provided by an embodiment of the application;

[0019] Figure 3 is a front view of the tower provided by an embodiment of the application;

[0020] Figure 4 is a sectional view in the direction of A-A in Figure 3

[0021] Figure 5 is an enlarged view of B in Figure 4

[0022] Figure 6 is a structural schematic diagram of the inner side of the protection section provided by an embodiment of the application;

[0023] Figure 7 is a structural schematic diagram of the outer side of the protection section provided by an embodiment of the application;

[0024] Figure 8 is a schematic diagram of the lap joint of the protection section provided by an embodiment of the application;

[0025] Figure 9 is a partial enlarged view of the joint of the tower segment provided by another embodiment of the application;

[0026] Figure 10 is a structural schematic diagram of a second sealing section provided by an embodiment of the application;

[0027] Figure 11 ​​is a schematic view of the lap joint of the sealing section provided by an embodiment of the present application;

[0028] Figure 12 is a schematic view of the lap joint of the sealing section provided by another embodiment of the present application;

[0029] Figure 13 is Figure 2 is an enlarged view of C in FIG. 1.

[0030] In the drawings:

[0031] 100 - tower; 200 - nacelle; 300 - impeller; 310 - hub; 320 - blade; 400 - foundation platform;

[0032] 1 - tower segment; 11 - vertical flange;

[0033] 2 - guard; 21 - seal; 211 - sealing portion; 2111 - sub-sealing portion; 2112 - connecting portion; 22 - shield; 221 - shielding portion; 222 - extending portion; 23 - shield end cover; 24 - connecting piece;

[0034] L1 - guard section; S1 - upper end of guard section; S2 - lower end of guard section;

[0035] L2 - sealing section; L21 - first sealing section; S3 - upper end of first sealing section; S4 - lower end of first sealing section; L22 - second sealing section; S5 - upper end of second sealing section; S6 - lower end of second sealing section;

[0036] Z - height direction.

[0037] In the drawings, the same components are designated by the same reference numerals. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0038] Features and exemplary embodiments of various aspects of the present application will be described below in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application, as is apparent to one of ordinary skill in the art. In the drawings and description below, well-known structures and techniques have not been shown or described in detail in order not to obscure the application. Also, in the following description and in the claims, the terms "include" and "have" are used inclusively and therefore should be interpreted as "including but not limited to." Moreover, the features described below, structures or characteristics, can be combined in any suitable manner in one or more embodiments.

[0039] The orientation words appearing in the following description are the directions shown in the drawings, and are not intended to limit the tower and wind turbine generator set of the present application. It should be noted in the description of the present application that, unless otherwise specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic view of a wind turbine generator set of an embodiment of the present application, Figure 2 is a structural schematic view of a tower 100 of an embodiment of the present application.

[0041] The utility model provides a kind of wind turbine generator set, including tower 100, cabin 200, generator, impeller 300 and base platform 400, tower 100 is connected to base platform 400, cabin 200 is set in the top of tower 100, generator is set in cabin 200. Impeller 300 includes hub 310 and multiple blades 320 connected on hub 310, impeller 300 is connected with the rotating shaft of generator by its hub 310. When wind acts on blade 320, it drives the rotating shaft of entire impeller 300 and generator to rotate, to convert wind energy into electric energy.

[0042] In the prior art wind turbine generator set, the tower 100 is usually two or more sections, each section of the tower 100 includes multiple tower segments 1 that are spliced together in the circumferential direction, after the tower segments 1 are transported to the predetermined position, the vertical flanges 11 of the adjacent two tower segments 1 are spliced together by bolts or other fasteners to realize the assembly of the large-diameter tower 100.

[0043] After the vertical flanges 11 of the adjacent two tower segments 1 are spliced together, the tower 100 is generally sealed at the joint by applying sealant to improve the sealing performance of the joint. However, once the sealant ages and cracks, or a small amount of separation occurs due to bending moment, rainwater will easily flow into the interior of the tower 100 along the joint, causing corrosion to the metal components, cables, etc. in the interior of the tower 100. Therefore, in order to overcome the above-mentioned defects, the present application also provides a new type of tower 100, in order to better understand the present application, the following will be combined with the drawings to describe the present application in detail. Figures 3 to 13 The tower 100 of the present application will be described in detail.

[0044] Please refer to Figures 3 to 5 , Figure 3 is a front view of the tower 100 of an embodiment of the present application, Figure 4 is Figure 3A cross-sectional view in the A-A direction, Figure 5 is Figure 4 An enlarged view at B.

[0045] The embodiment of the present application provides a tower 100, which comprises a tower body and a protection device 2 arranged on the tower body, the tower body comprises a plurality of tower segments 1 which are spliced with each other along the circumferential direction of the tower body, the protection device 2 comprises a sealing element 21 and a protective cover 22, the sealing element 21 comprises sealing parts 211 which are arranged on two adjacent tower segments 1 in pairs, each sealing part 211 has a first surface and a second surface which are oppositely arranged, the first surface is sealingly connected with the tower segment 1, and the protective cover 22 is arranged on the sealing element 21 and covers the second surface of each sealing part 211 and extends towards the tower segment 1.

[0046] The tower 100 provided by the embodiment of the present application is provided with the protection device 2 at the vertical joint of the two adjacent tower segments 1, the protection device 2 comprises the sealing element 21 and the protective cover 22 arranged on the sealing element 21, the sealing element 21 comprises the sealing parts 211 arranged on the two sides of the joint of the tower segment 1 in pairs, the protective cover 22 covers the side surface of the sealing part 211 away from the tower segment 1, so as to surround the vertical joint by the sealing part 211 and the protective cover 22 and form physical isolation. When rainwater formed by external precipitation falls on the tower 100, the rainwater can be blocked by the protective cover 22 and the sealing element 21 at the position of the vertical joint of the two adjacent tower segments 1, so that the rainwater can be effectively prevented from entering the joint, and the risk that the rainwater enters the inside of the tower 100 and corrodes the metal components and cables in the inside of the tower 100 can be reduced, and the service life of the wind turbine generator system is improved.

[0047] It should be noted that the protection device 2 can be used in the tower 100 of each of the above-mentioned embodiments and serve as a component of the tower 100, and of course, can also be produced or sold as an independent component.

[0048] For the convenience of description, when the protective cover 22 is arranged on the sealing element 21, the part of the protective cover 22 which covers the part between the sealing parts 211 arranged in pairs is defined as a protection part 221, and the part of the protective cover 22 which extends towards the tower segment 1 is defined as an extension part 222. When rainwater formed by external precipitation falls on the tower 100 obliquely, part of the rainwater will flow down along the protective cover 22, and part of the rainwater will be guided to the tower 100 through the extension parts 222 on the two sides, and the sealing part 211 can shield the rainwater of the tower 100 in the transverse direction, and the sealing part 211 and the extension part 222 are arranged in overlap, so that a certain labyrinth sealing effect can also be achieved, so that reliable waterproof performance is achieved, the risk that the rainwater enters the joint is effectively reduced, and the reliability is improved.

[0049] Optionally, the protective cover 22 can be provided in a U-shaped structure, or in an arc-shaped structure, and the specific structure can be adjusted according to actual requirements.

[0050] In some optional embodiments, the protection device 2 further comprises a connecting piece 24, the protective cover 22 and the sealing piece 21 are correspondingly provided with connecting holes, and the connecting piece 24 penetrates the connecting holes and connects the protective cover 22 and the sealing piece 21.

[0051] Since the protective cover 22 covers the second surface of the sealing part 211 and extends towards the tower segment 1, the extension part 222 can be arranged at least partially overlapping the sealing part 211. In the overlapping area, the extension part 222 and the sealing part 211 can be correspondingly provided with connecting holes, and the connecting piece 24 can be provided as a bolt. By penetrating the bolt into the connecting holes, the protective cover 22 can be fixed to the tower 100 through the sealing piece 21.

[0052] Please refer to Figures 6 to 8 , Figure 6 and Figure 7 is a structural schematic diagram of the protection segment L1 provided by an embodiment of the present application, Figure 8 is a schematic diagram of the lap joint of the protection segment L1 provided by an embodiment of the present application.

[0053] In some optional embodiments, the protective cover 22 comprises a plurality of protection segments L1 arranged successively along the height direction Z of the tower body, and each protection segment L1 comprises an upper end and a lower end arranged along the height direction Z. In the two adjacent protection segments L1, the upper end of the lower protection segment L1 is embedded into the lower end of the upper protection segment L1.

[0054] The protection segments L1 are arranged continuously along the height direction Z, and the plurality of protection segments L1 are spliced with each other along the height direction Z to form the protective cover 22, so as to facilitate the manufacturing and installation of the protective cover 22. When the protection segments L1 are connected to the tower 100, the end portions of the two adjacent protection segments L1 overlap each other, and the upper end of the lower protection segment L1 is embedded into the lower end of the upper protection segment L1, that is, the lower end of the upper protection segment L1 is wrapped in the upper end of the lower protection segment L1, so as to reduce the risk of rainwater entering the gap between the two adjacent protection segments L1, and to realize reliable waterproofing at the splicing position of the protection segments L1.

[0055] In some optional embodiments, at least part of the protection segments L1 have the same structure, and each protection segment L1 further comprises a protection body between the upper end and the lower end, and the lower end of the protection segment L1 is arranged outwardly relative to the protection body and forms a stepped structure capable of accommodating the upper end of the protection segment L1.

[0056] Specifically, when the structures of the protection segments L1 are the same, the protection segment L1 can include a protection segment upper end S1, a protection main body, and a protection segment lower end S2, the protection segment lower end S2 is arranged outwardly relative to the protection main body and forms a stepped structure capable of accommodating the protection segment upper end S1, so that when the plurality of protection segments L1 are spliced, the protection segment upper end S1 can be embedded into the protection segment lower end S2 of another protection segment L1 to realize the mutual splicing of the plurality of protection segments L1 with the same structure.

[0057] Optionally, the protection segment upper end S1 can be arranged in the same size as the protection main body to simplify the structure of the protection segment L1. The sizes of the protection segment upper end S1 and the protection main body can be adapted to the sealing element 21 to improve the tightness of the connection between the protection cover 22 and the sealing element 21. The specific sizes of the protection segment upper end S1 and the protection segment lower end S2 in the height direction Z can be adjusted according to actual needs, which can meet the connection requirements of the protection segment lower end S2 and the protection segment upper end S1 of the adjacent two protection segments L1, and the present application does not make specific limitations thereto.

[0058] Optionally, in the overlapping area of the protection segment upper end S1 and the protection segment lower end S2, the protection segment upper end S1 can be provided with a first connecting hole, and the protection segment lower end S2 can be provided with a second connecting hole matched with the first connecting hole, and the protection cover 22 further includes a bolt, after the protection segment upper end S1 of one protection segment L1 is embedded into the protection segment lower end S2 of another protection segment L1, the bolt can be sequentially arranged in the second connecting hole and the first connecting hole to realize the splicing of the adjacent two protection segments L1.

[0059] Please refer to Figure 9 , Figure 9 is a partial enlarged view of the joint of the tower segment 1 provided by another embodiment of the present application.

[0060] In some optional embodiments, the sealing element 21 includes a plurality of sealing segments L2 arranged in sequence along the height direction Z of the tower 100, each sealing segment L2 includes a pair of sub-sealing portions 2111 arranged on the adjacent two tower segments 1, the end portions of the adjacent sub-sealing portions 2111 are connected to form a sealing portion 211, and in at least part of the sealing segment L2, the first surface of the sub-sealing portion 2111 is provided with a connecting portion 2112, and the sub-sealing portion 2111 is detachably connected to the tower segment 1 through the connecting portion 2112.

[0061] Similarly to the protection section L1, the seal 21 can also include a plurality of seal sections L2 arranged in sequence along the height direction Z, and for each seal section L2, part of the seal section L2 can be directly fixed to the tower segment 1 to simplify the assembly difficulty of the protection device 2 and improve the installation efficiency. For the area that cannot be directly fixed to the tower segment 1, for example, at the segmented position of the tower 100 along the height direction Z, the sub-seal part 2111 can also be detachably connected to the tower segment 1 through the connecting part 2112, that is, the seal section L2 is designed to be detachable, so that after the tower 100 is assembled, the seal section L2 is connected to the tower segment 1, so as to avoid the influence of the seal section L2 on the assembly of the tower 100 and reduce the assembly difficulty.

[0062] Optionally, the connecting part 2112 includes at least one of a magnetic sealing part and a vacuum adsorption part. Taking the example that the connecting part 2112 is a magnetic sealing part 211, the sub-seal part 2111 can be fixed to one side of the vertical joint of the tower segment 1 through magnetic attraction, and a sealant can also be arranged between the sub-seal part 2111 and the tower segment 1, so that the sub-seal part 2111 can be sealed and connected to the tower segment 1 through the connecting part 2112, thereby reducing the risk of rainwater entering the joint.

[0063] In some optional embodiments, the plurality of seal sections L2 includes a first seal section L21 and a second seal section L22, the first seal section L21 is fixed to the tower segment 1, and the second seal section L22 is connected to the tower segment 1 through the connecting part 2112, and the second seal section L22 is arranged between two adjacent first seal sections L21 along the height direction Z.

[0064] That is, the first seal section L21 is a non-detachable structure, which can be directly fixed to the tower segment 1 through welding, for example, and the second seal section L22 is a detachable structure, which can be detachably connected to the tower segment 1 through magnetic attraction, for example. By arranging the second seal section L22 between two adjacent first seal sections L21 along the height direction Z, the two ends of the second seal section L22 can be matched with the first seal sections L21 fixed by welding, thereby improving the reliability of the installation of the protection device 2.

[0065] Please refer to Figures 10 to 12 , Figure 10 is a structural schematic view of the second seal section L22 provided in an embodiment of the present application, Figure 11 and Figure 12 is a schematic view of the lap joint of the seal section L2 provided in an embodiment of the present application.

[0066] In some optional embodiments, gaps are formed between the pairs of sub-sealing portions 2111 in the circumferential direction, and the sub-sealing portions 2111 include upper ends and lower ends arranged in the height direction Z. In the two adjacent sealing sections L2, the upper end of the lower sub-sealing portion 2111 is embedded into the gap of the lower end of the upper sub-sealing portion 2111.

[0067] Similarly to the protection section L1, by embedding the upper end of the lower sealing section L2 into the lower end of the upper sealing section L2 in the two adjacent sealing sections L2, i.e., by wrapping the lower end of the upper sealing section L2 around the upper end of the lower sealing section L2, the risk of rainwater entering the gap between the two adjacent sealing sections L2 can be reduced, and reliable waterproofing at the joint of the sealing sections L2 can be achieved.

[0068] In some optional embodiments, the sub-sealing portion 2111 further includes a sealing body arranged between the upper end and the lower end in the height direction Z. The lower end of the sub-sealing portion 2111 is outwardly expanded relative to the sealing body in a direction away from the gap, and / or the upper end of the sub-sealing portion 2111 is inwardly contracted relative to the sealing body in a direction close to the gap.

[0069] Optionally, the structures of the first sealing sections L21 are the same, and the structures of the second sealing sections L22 are the same.

[0070] As an optional implementation, the first sealing section L21 can be arranged as a plate structure with the same width of the upper end, the sealing body, and the gap of the lower end, and the second sealing section L22 can be arranged as a stepped structure with the lower end outwardly expanded relative to the sealing body in a direction away from the gap and the upper end inwardly contracted relative to the sealing body in a direction close to the gap.

[0071] For example, the second sealing section L22 is arranged between the two adjacent first sealing sections L21 in the height direction Z.

[0072] Referring to Figure 11 Since the upper end S5 of the second sealing section is inwardly contracted relative to the sealing body in a direction close to the gap, at the joint position of the lower end S4 of the first sealing section and the upper end S5 of the second sealing section, the upper end S5 of the second sealing section can be embedded into the lower end S4 of the first sealing section, so as to reduce the risk of rainwater entering the gap between the two adjacent sealing sections L2 and achieve reliable waterproofing at the joint of the sealing sections L2.

[0073] Referring to Figure 12 Since the lower end S6 of the second sealing section is outwardly expanded relative to the sealing body in a direction away from the gap, at the joint position of the lower end S6 of the second sealing section and the upper end S3 of the first sealing section, the upper end S3 of the first sealing section can be embedded into the lower end S6 of the second sealing section, so as to reduce the risk of rainwater entering the gap between the two adjacent sealing sections L2 and achieve reliable waterproofing at the joint of the sealing sections L2.

[0074] Referring to Figures 1 to 13 , Figure 13 is Figure 2 is an enlarged view of C in FIG.

[0075] In some optional embodiments, the protection device 2 further comprises a protection end cover 23, which is arranged above the sealing member 21 and the protection cover 22 along the height direction Z of the tower body.

[0076] By arranging the protection end cover 23 on the tower 100, the protection end cover 23 is arranged above the sealing member 21 and the protection cover 22 along the height direction Z, i.e. above the end of the vertical flange 11, so as to prevent rainwater from entering from the end of the vertical joint, thereby further improving the reliability of the protection and reducing the risk of water leakage of the vertical joint of the tower 100.

[0077] Therefore, the tower 100 provided by the embodiments of the present application can effectively reduce the risk of water leakage at the vertical joint and has high reliability, because the tower 100 comprises the tower body and the protection device 2, and the vertical joint is circumferentially surrounded by the sealing member 21 and the protection cover 22 to form physical isolation. The wind turbine generator provided by the embodiments of the present application has good waterproof performance, long service life and other advantages, and is easy to popularize and use.

[0078] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent components can be substituted therefor. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tower characterized in that, The tower body comprises a plurality of tower segments (1) spliced together along the circumferential direction of the tower body, and the protection device (2) comprises: a sealing member (21) comprising a pair of sealing portions (211) arranged on two adjacent tower segments (1), each sealing portion (211) having a first surface and a second surface arranged oppositely, and the first surface being in sealing connection with the tower segment (1); a protective cover (22) covering the second surface of each sealing portion (211) and extending towards the tower segment (1).

2. Tower according to claim 1, characterized in that The protective cover (22) comprises a plurality of protective segments (L1) arranged successively along the height direction (Z) of the tower body, and each protective segment (L1) comprises an upper end and a lower end arranged along the height direction (Z); In two adjacent protective segments (L1), the upper end of the lower protective segment (L1) is embedded into the lower end of the upper protective segment (L1).

3. Tower according to claim 2, characterized in that At least part of the protective segments (L1) are identical in structure, and each protective segment (L1) further comprises a protective body between the upper end and the lower end, and the lower end of the protective segment (L1) is arranged outwardly relative to the protective body and forms a stepped structure capable of accommodating the upper end of the protective segment (L1).

4. Tower according to any of claims 1 to 3, characterized in that The sealing member (21) comprises a plurality of sealing segments (L2) arranged successively along the height direction (Z) of the tower (100), and each sealing segment (L2) comprises a pair of sub-sealing portions (2111) arranged on two adjacent tower segments (1), and adjacent sub-sealing portions (2111) are connected to form the sealing portion (211); In at least part of the sealing segments (L2), the first surface of the sub-sealing portion (2111) is provided with a connecting portion (2112), and the sub-sealing portion (2111) is detachably connected to the tower segment (1) through the connecting portion (2112).

5. Tower according to claim 4, characterized in that The plurality of sealing segments (L2) comprises a first sealing segment (L21) and a second sealing segment (L22), the sub-sealing portion (2111) of the first sealing segment (L21) is fixed to the tower segment (1), and the sub-sealing portion (2111) of the second sealing segment (L22) is connected to the tower segment (1) through the connecting portion (2112), and the second sealing segment (L22) is arranged between two adjacent first sealing segments (L21) along the height direction (Z).

6. Tower according to claim 4, characterized in that The connecting portion (2112) comprises at least one of a magnetic sealing portion and a vacuum adsorption portion.

7. The tower of claim 4, wherein In the circumferential direction, a gap is formed between the pair of sub-sealing portions (2111), and the sub-sealing portion (2111) comprises an upper end and a lower end arranged along the height direction (Z); In two adjacent sealing segments (L2), the upper end of the lower sub-sealing portion (2111) is embedded into the gap of the lower end of the upper sub-sealing portion (2111).

8. Tower according to claim 7, characterized in that The sub-seal part (2111) further comprises a seal body arranged between an upper end and a lower end along the height direction (Z); The lower end of the sub-seal part (2111) is arranged outwardly away from the gap relative to the seal body, and / or the upper end of the sub-seal part (2111) is arranged inwardly close to the gap relative to the seal body.

9. Tower according to any of claims 1 to 3, characterized in that The protection device (2) further comprises a protection end cover (23) arranged above the seal (21) and the protection cover (22) along the height direction (Z) of the tower body; And / or, the protection device (2) further comprises a connecting piece (24), the protection cover (22) and the seal (21) are correspondingly provided with connecting holes, and the connecting piece (24) penetrates the connecting holes and connects the protection cover (22) and the seal (21).

10. A wind power unit, characterized in that The tower (100) according to any one of claims 1 to 9. The tower (100) according to any one of claims 1 to 9.

Images