Tower and wind generating set

Abstract

The utility model provides a tower and a wind generating set, and relates to the technical field of wind power generation. The tower frame is applied to the wind generating set and comprises a tower body and a protective layer, the tower body comprises a plurality of prefabricated tower sections made of carbon fibers or glass fibers, the prefabricated tower sections are coaxially spliced in the axial direction of the tower body to form the tower body, the wall thickness of the prefabricated tower sections changes in a gradient mode in the axial direction, and the protective layer covers the tower body. The protective layer is at least used for blocking ultraviolet irradiation on the tower body. The utility model provides a tower and a wind generating set, which are light in weight and can prevent ultraviolet rays.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field especially, relate to a tower and wind turbine generator unit. BACKGROUND

[0002] With the rapid development of global clean energy, wind power is more and more popular. But there are many problems in the existing wind turbine tower technology. The traditional tower is mostly steel structure, which is made by cutting and welding steel. On the one hand, due to the high density of steel, in order to adapt to the increase of wind power single machine capacity and installation height, the size of the tower increases and the weight increases sharply, which makes the transportation cost high during production, and the finished product transportation needs heavy vehicles, which requires high road and bridge. In the wind power construction site, heavy tower needs large crane, which has high leasing and operation cost. When encountering complex terrain or bad weather, hoisting is also easily blocked, which delays the construction progress. On the other hand, wind turbine is often set in open and strong ultraviolet region, such as grassland, seaside and other places. The surface protective paint of steel structure tower is aged and peeled off under the long time irradiation of ultraviolet, the steel rusts, the structural strength is reduced, the service life is shortened, and frequent maintenance and repainting increase the operation cost. SUMMARY

[0003] In order to solve at least one problem mentioned in the background art, the utility model provides a tower and wind turbine generator unit, which is light in weight and can prevent ultraviolet.

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0005] Firstly, the utility model provides a tower, which is applied to wind turbine generator unit, comprising a tower body and a protective layer. The tower body comprises a plurality of prefabricated tower segments made of carbon fiber or glass fiber. The plurality of prefabricated tower segments are coaxially spliced along the axial direction of the tower body to form the tower body. The wall thickness of the prefabricated tower changes along the axial direction in a gradient manner. The protective layer covers the outside of the tower body. The protective layer is used at least to block the ultraviolet irradiation of the tower body.

[0006] As an optional embodiment, the wall thickness of the prefabricated tower segment continuously decreases from the bottom to the top, and the wall thickness decreases by 0.5mm-1.2mm per meter from the bottom to the top.

[0007] As an optional embodiment, the protective layer comprises a first coating layer and a second coating layer. The first coating layer covers the surface of the tower body, and the second coating layer covers the outside of the first coating layer. The first coating layer comprises silane coupling agent, and the second coating layer comprises polyurethane finish.

[0008] As an optional embodiment, the thickness of the first coating layer is 50μm-100μm, and the thickness of the second coating layer is 100μm-300μm.

[0009] As an optional implementation, the protective layer further comprises a third coating layer, the third coating layer covers the surface of the first coating layer, the third coating layer comprises a zinc chromate epoxy primer, and the thickness of the third coating layer is 100-200 mu m.

[0010] As an optional implementation, the protective layer further comprises a fourth coating layer, the fourth coating layer covers the surface of the third coating layer, the fourth coating layer comprises an epoxy cloud iron intermediate coating, the thickness of the fourth coating layer is 50-100 mu m, and the second coating layer covers the surface of the fourth coating layer.

[0011] As an optional implementation, the protective layer further comprises a fifth coating layer, the fifth coating layer comprises a fluorocarbon finish, the thickness of the fifth coating layer is 50-100 mu m, and the fifth coating layer covers the surface of the second coating layer.

[0012] As an optional implementation, the reinforcing ribs are integrally formed with the tower segments by a co-curing process.

[0013] As an optional implementation, the reinforcing ribs have a T-shaped structure or a cross-shaped structure.

[0014] In a second aspect, the utility model further provides a wind generating set, including tower of any one in first aspect.

[0015] The tower provided by the utility model is applied to the wind generating set, and comprises a tower body and a protective layer, the tower body comprises a plurality of prefabricated tower segments made of carbon fibers or glass fibers, the plurality of prefabricated tower segments are coaxially spliced along the axial direction of the tower body to form the tower body, the wall thickness of the prefabricated tower changes along the axial direction in a gradient mode, and the protective layer covers the outside of the tower body and is used at least for blocking ultraviolet radiation to the tower body.

[0016] The prefabricated tower section is made through winding forming process, and the wall thickness changes along the axial direction in a gradient manner, the design can accurately distribute materials according to stress conditions of different parts of the tower, optimizes material use while ensuring structural strength, avoids material waste, and reduces manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present utility model, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 The schematic diagram of the tower provided by the embodiment of the present utility model is provided.

[0019] Figure 2 The schematic diagram of the prefabricated tower section in the tower provided by the embodiment of the present utility model is provided.

[0020] Figure 3 The enlarged view of A in the middle. Figure 2 The enlarged view of A in the middle.

[0021] Explanation of reference signs:

[0022] 100-tower;

[0023] 110-prefabricated tower section;

[0024] 120-protection layer;

[0025] 121-first coating;

[0026] 122 - second coating;

[0027] 123 - third coating;

[0028] 124 - fourth coating;

[0029] 125 - fifth coating;

[0030] 130 - reinforcing rib. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the application, the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like are the orientations or positional relationships shown based on the drawings. These terms are mainly used for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to necessarily have a specific orientation, or to be constructed and operated in a specific orientation.

[0033] In addition, in addition to being used to indicate orientations or positional relationships, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the present application according to specific circumstances.

[0034] In addition, the terms "mount", "set", "provided with", "connect", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. Those skilled in the art can understand the specific meanings of the above-mentioned terms in the present application according to specific circumstances.

[0035] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "multiple" is two or more.

[0036] Traditional wind turbine towers are mostly steel structures, which are made by cutting and welding steel materials. On the one hand, steel has a large density, and wind power is to increase efficiency, so the single machine capacity and installation height are increased, and the tower size and weight are also increased. During production, heavy vehicles are required for transportation, which requires high requirements for roads and bridges, and the cost is soaring. At the construction site, large cranes are required for hoisting, and the leasing operation cost is high. When encountering complex terrain or bad weather, hoisting is blocked, and the construction period is delayed. On the other hand, wind turbines are often located in open and strong ultraviolet regions, such as grasslands and seashores. The steel structure tower is exposed to ultraviolet radiation for a long time, and the protective paint peels off, the steel rusts, the structural strength decreases, and the service life is shortened. Frequent maintenance and repainting increase the operating cost.

[0037] Therefore, the utility model provides a tower, which comprises a tower body and a protective layer, the tower body comprises a plurality of prefabricated tower segments made of carbon fiber or glass fiber, the plurality of prefabricated tower segments are coaxially spliced along the axial direction of the tower body to form the tower body, the wall thickness of the prefabricated tower changes along the axial direction in a gradient manner, and the protective layer covers the outside of the tower body. The tower body is spliced by the prefabricated tower segments made of carbon fiber or glass fiber. Compared with the traditional steel structure tower, the carbon fiber and the glass fiber material have the characteristics of light weight and high strength, which greatly reduces the overall weight of the tower. On the one hand, in the production and transportation link, a transportation vehicle with relatively small carrying capacity can be selected, the special requirements for roads and bridges are reduced, and the logistics cost is greatly reduced. On the other hand, at the wind farm construction site, a large crane with super lifting capacity is no longer required, and a small crane can easily cope with the situation, which reduces the hoisting difficulty, reduces the hindrance of factors such as terrain and climate to hoisting operation, effectively speeds up the construction process of the wind farm. Secondly, the protective layer covering the outside of the tower body can effectively block ultraviolet radiation. Even if the wind turbine is located in an open and strong ultraviolet region, such as a grassland, a mountain, or a sea, the protective layer can provide long-term protection for the tower body, prevent the tower body from being eroded by ultraviolet radiation, and prevent problems such as surface aging and structural strength reduction. The service life of the tower is significantly prolonged, the maintenance frequency and cost are reduced, and the stable and efficient operation of the wind turbine is ensured.

[0038] Figure 1 A schematic view of the tower provided by the utility model embodiment is shown in the following figure; Figure 2 A schematic view of the prefabricated tower segment in the tower provided by the utility model embodiment is shown in the following figure; Figure 3 A schematic view of the prefabricated tower segment in the tower provided by the utility model embodiment is shown in the following figure; Figure 2 An enlarged view of position A in the middle.

[0039] The utility model can be used for Figures 1 to 3The utility model embodiment provides a tower 100, be applied to wind generating set, including tower body and protection layer 120, tower body includes a plurality of by carbon fiber or glass fiber made prefabricated tower section 110, a plurality of prefabricated tower section 110 is coaxially spliced along the axial direction of tower body and forms tower body, prefabricated tower section 110 can be made by winding forming process, the wall thickness of prefabricated tower is gradient change along the axial direction, and the protection layer 120 is covered in the tower body, and the protection layer 120 is at least used to block ultraviolet radiation tower body.

[0040] The tower body is spliced by the prefabricated tower section 110 made of carbon fiber or glass fiber, compared with the traditional steel structure tower 100, the carbon fiber and glass fiber material has the characteristics of light weight and high strength, which greatly reduces the overall weight of the tower 100. On the one hand, in the production and transportation link, relatively small transportation vehicles can be selected, the special requirements for roads and bridges are reduced, thereby the logistics cost is greatly reduced; on the other hand, in the wind power field construction site, a large crane with super lifting capacity is no longer needed, and a small crane can easily cope with it, the hoisting difficulty is reduced, the obstacles to hoisting operation caused by factors such as terrain and climate are reduced, and the wind power field construction process is effectively accelerated. Secondly, the prefabricated tower section 110 is made by winding forming process, and the wall thickness is gradient change along the axial direction, this design can accurately distribute materials according to the stress condition of different parts of the tower 100, further optimize the use of materials while ensuring the structural strength, avoid material waste, and reduce manufacturing cost. Furthermore, the protection layer 120 covering the tower body can effectively block ultraviolet radiation, even if the wind generating set is in an open, strong ultraviolet radiation area such as grassland, high mountain, sea, etc., the protection layer 120 can also provide durable protection for the tower body, prevent the tower body from surface aging, structural strength decline and other problems caused by ultraviolet erosion, significantly prolong the service life of the tower 100, reduce the maintenance frequency and cost in the later period, and ensure the stable and efficient operation of the wind generating set.

[0041] In the above embodiment, the wall thickness of the prefabricated tower section 110 can be continuously reduced from the bottom to the top, and the wall thickness can be reduced by 0.5-1.2 mm per meter from the bottom to the top. It can be understood that the bottom of the wind turbine tower 100 bears a large force, and a larger wall thickness is required to ensure strength and stability. The top bears a small force, and a smaller wall thickness can meet the requirements. This design can accurately allocate materials according to the actual force of different parts, avoid waste of materials at the top, reduce the overall weight and cost. At the same time, due to the reduction of the weight of the tower 100, the vehicle carrying requirement is reduced during transportation, the lifting capacity requirement of the hoisting equipment is reduced during installation, the transportation and installation costs are reduced, and the stress distribution is more uniform, which improves the overall stability and seismic resistance. However, the reduction rate of the wall thickness with the height has certain requirements. If the reduction rate is too small, too much material will be used at the top, which will make it difficult to reduce the overall weight of the tower 100, cause material waste, and affect the stability due to the increase of the center of gravity. The transportation and installation costs are high. If the reduction rate is too large, the wall thickness at the top is reduced too quickly, which cannot meet the strength requirements, is easy to deform, damage or even collapse under external load, and causes sudden change of structural stiffness, uneven stress distribution, stress concentration, and reduction of stability and seismic resistance. The wall thickness of the prefabricated tower section 110 is reduced by 0.5-1.2 mm per meter from the bottom to the top, which can meet the requirements of the strength, stability and cost of the tower 100.

[0042] In the above embodiment, the protective layer 120 can include a first coating layer 121 and a second coating layer 122. The first coating layer 121 covers the surface of the tower body, and the second coating layer 122 covers the outside of the first coating layer 121. The first coating layer 121 includes a silane coupling agent, and the second coating layer 122 includes a polyurethane finish. The first coating layer 121 located in the innermost layer and directly in contact with the surface of the tower body contains a silane coupling agent, which can chemically react with active groups such as hydroxyl groups on the surface of the tower body material (carbon fiber or glass fiber) to form a stable chemical bond, thereby greatly enhancing the adhesion between the coating and the tower body, and ensuring that the protective layer 120 is not easily peeled off during long-term use of the tower body. The second coating layer 122 uses a polyurethane finish, which has excellent weather resistance and can effectively resist complex and variable weather conditions. Whether it is long-term high-intensity ultraviolet radiation, wind and rain, or ice and snow attack, it can effectively prevent the surface of the tower 100 from aging and fading. Secondly, the paint film formed by the polyurethane finish has good flexibility. When the tower 100 is slightly deformed due to wind action or thermal expansion and contraction of its own structure, the paint film can stretch or contract moderately to avoid cracking and maintain the integrity of the protection. Furthermore, the polyurethane finish has high wear resistance, and even if it is subjected to some slight mechanical friction and collision during transportation, installation and daily maintenance of the tower 100, it can maximize the protection of the inner coating and the tower body from damage, and prolong the service life of the tower 100 in all directions, ensuring the stable operation of the wind power generation system.

[0043] In the above embodiments, the thickness of the first coating layer 121 can be 50-100 μm, and the thickness of the second coating layer 122 can be 100-300 μm. The thickness of the first coating layer 121 is between 50-100 μm, which can ensure that the silane coupling agent fully plays its key role in enhancing the adhesion, and will not cause material waste or introduce unnecessary internal stress due to excessive thickness. If the thickness of the first coating layer 121 is less than 50 μm, the content of the silane coupling agent is relatively insufficient, and it is difficult to form a dense chemical bond network on the surface of the tower body, which will greatly reduce the adhesion of the coating to the tower body. In the subsequent use process, due to external factors such as wind, sunlight, and rain, local peeling of the coating may occur, thereby reducing the protection effect. If the thickness of the first coating layer 121 is too thick, more than 100 μm, on the one hand, the excess silane coupling agent cannot fully react with the surface of the tower body, resulting in material waste; on the other hand, the shrinkage stress generated during the drying process of the thick coating may cause the coating to crack, which also damages the integrity of the protective layer 120 and brings difficulties to the construction of the second coating layer 122.

[0044] If the thickness of the second coating layer 122 is less than 100 μm, the paint film formed by the polyurethane topcoat is too thin to effectively resist long-term high-intensity ultraviolet radiation, and the surface of the tower 100 will age and fade rapidly. The flexibility and wear resistance of the paint film are also limited due to insufficient thickness, and cracking and peeling may occur under slight deformation or mechanical friction, which cannot provide reliable protection for the inner coating and the tower body. Conversely, if the thickness of the second coating layer 122 is too thick, more than 300 μm, firstly, the amount of paint used increases significantly, resulting in increased cost; secondly, the drying time of the thick paint film is prolonged, which will affect the construction progress on the construction site; thirdly, the thick paint film is more prone to blistering and peeling due to environmental factors such as temperature and humidity differences between the inner and outer layers during long-term use, which may affect the protection effect.

[0045] In the above embodiments, the protective layer 120 can further include a third coating layer 123, which covers the surface of the first coating layer 121. The third coating layer 123 includes a zinc chromate epoxy primer, and the thickness of the third coating layer 123 is 100-200 μm. The third coating layer 123 can further enhance the adhesion, and on the other hand, it can form a dense film structure on the surface of the first coating layer 121 to isolate external water vapor and impurities, effectively protecting the first coating layer 121 from penetration and erosion. When the thickness of the third coating layer 123 is insufficient, the adhesion decreases and the number of surface micropores increases, which makes it easy for external media to penetrate the interface along the pores and cause delamination of the coating. When the thickness is too thick, invisible cracks may be formed due to the shrinkage stress generated inside, which may weaken the adhesion.

[0046] In the above embodiment, the protective layer 120 can further include a fourth coating layer 124 covering the surface of the third coating layer 123, the fourth coating layer 124 including an epoxy micaceous iron oxide intermediate paint, the thickness of the fourth coating layer 124 being 50-100 μm, and the second coating layer 122 covering the surface of the fourth coating layer 124. It can be understood that the epoxy micaceous iron oxide intermediate paint has a compact molecular arrangement, can greatly fill the small pores possibly existing on the surface of the third coating layer 123, further prevents the penetration of external water vapor, dust and other small particles, effectively isolates the third coating layer 123 from the external environment, avoids the performance degradation of the third coating layer 123 due to external factors, and ensures that the third coating layer 123 can stably play the basic functions of enhancing adhesion and sealing the base material for a long time. When the thickness of the fourth coating layer 124 is less than 50 μm, the material is insufficient to sufficiently cover the pores of the third coating layer 123, and the sealing effect is greatly reduced. When the thickness exceeds 100 μm, on the one hand, the epoxy micaceous iron oxide intermediate paint material is wasted, and the cost is increased; on the other hand, during the drying process, the solidification rates of the inner and outer layers are inconsistent, and a large internal stress is generated, which causes the coating layer to crack, bubble and other quality problems, damages the integrity of the protective layer 120, and brings hidden dangers to the tower 100.

[0047] In the above embodiment, the protective layer 120 can further include a fifth coating layer 125, the fifth coating layer 125 including a fluorocarbon topcoat, the thickness of the fifth coating layer 125 being 50-100 μm, and the fifth coating layer 125 covering the surface of the second coating layer 122. The fluorocarbon topcoat has a stable molecular structure and has strong resistance to corrosive chemicals such as acid rain and salt spray. When the acidic or alkaline substances in the external environment attack, it can block the penetration of these substances to the lower coating layer by virtue of its compact molecular arrangement, avoid the chemical corrosion of the tower 100 material, and effectively guarantee the structural integrity of the tower 100. Moreover, the fluorocarbon topcoat has good adhesion to the second coating layer 122 in the inner layer, can be tightly attached, and ensures the integrity of the entire protective system. The thickness of the fluorocarbon topcoat should not be too thin or too thick. If the thickness is less than 50 μm, the protective film formed by the fluorocarbon topcoat is too thin, the weather resistance and corrosion resistance are greatly reduced, and it is difficult to effectively resist the external harsh environment. If the thickness exceeds 100 μm, the fluorocarbon topcoat material is wasted, and the cost is increased.

[0048] In the above embodiments, the reinforcing ribs 130 can be integrally formed with the prefabricated tower section 110 through a co-curing process. The reinforcing ribs 130 can greatly enhance the ability of the tower 100 to resist external forces such as strong winds and vibrations, effectively reducing the risk of deformation and damage, greatly improving the reliability and safety of the tower 100, and ensuring stable operation in complex and harsh operating environments. Secondly, the reinforcing ribs 130 are integrally formed with the prefabricated tower section 110 through a co-curing process, which can enable the reinforcing ribs 130 to closely cooperate with the prefabricated tower section 110 and evenly distribute stress to the entire tower 100 structure when under stress, avoiding stress concentration-induced crack or fatigue damage hazards and significantly extending the service life of the tower 100.

[0049] In the above embodiments, the reinforcing ribs 130 can have a T-shaped structure or a cross-shaped structure. The T-shaped and cross-shaped reinforcing ribs 130 have omnidirectional support characteristics, with the horizontal portion having a large contact area that can closely adhere to the inner wall of the tower 100 and evenly distribute pressure to a wider area when under radial pressure, effectively improving the bending resistance of the tower 100 and inhibiting radial deformation of the tower 100 caused by wind forces. The vertical portion extends into the interior of the tower 100, strengthening the connection stability with the tower body and ensuring stable and reliable tower 100 structure under complex stress conditions. When facing strong wind impact, whether the external force comes from horizontal thrust or vertical shear force, both horizontal and vertical directions can simultaneously play a role, quickly and evenly transmit and disperse complex external forces to the entire tower 100, effectively avoid local stress overload, reduce the risk of damage to the tower 100, and ensure the safe and stable operation of the wind power generation equipment.

[0050] In addition, the utility model discloses a wind generating set, including tower 100 among above -mentioned embodiment, this tower 100 includes tower body and protective layer 120, tower body includes a plurality of by carbon fiber or glass fiber made prefabricated tower section 110, a plurality of prefabricated tower section 110 is coaxially spliced along the axial direction of tower body and forms tower body, prefabricated tower section 110 is made through winding forming process, and the wall thickness of prefabricated tower is gradient change along the axial direction, the protective layer 120 is covered in tower body outside, this tower body is formed by the splicing of the prefabricated tower section 110 made of carbon fiber or glass fiber, compared with traditional steel structure tower 100, carbon fiber and glass fiber material has the characteristics of light weight, high strength, greatly reduces the overall weight of tower 100.Prefabricated tower section 110 is made through winding forming process, and the wall thickness is gradient change along the axial direction, this design can accurately distribute material according to the stress condition of different parts of tower 100, further optimizes material use while guaranteeing structural strength, avoids material waste, reduces manufacturing cost.Tower body outside covering protective layer 120 can effectively block ultraviolet radiation, even if wind generating set is in the region such as grassland, high mountain, sea etc. for a long time, protective layer 120 can also provide durable protection for tower body, prevent tower body from appearing surface aging, structural strength decline and other problems due to ultraviolet erosion, significantly prolong the service life of wind generating set, reduce the frequency and cost of later maintenance, ensure the stable and efficient operation of wind generating set.

[0051] Finally, it needs to be explained that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A tower, characterized in that, The invention is applied to wind turbine generator sets and includes a tower body and a protective layer. The tower body includes multiple prefabricated tower segments made of carbon fiber or glass fiber. The multiple prefabricated tower segments are coaxially spliced ​​together along the axial direction of the tower body to form the tower body. The wall thickness of the prefabricated tower varies in a gradient along the axial direction. The protective layer covers the outside of the tower body and is used to at least block ultraviolet radiation from irradiating the tower body.

2. The tower according to claim 1, characterized in that, The wall thickness of the prefabricated tower section decreases continuously from bottom to top, and the wall thickness decreases by 0.5mm-1.2mm per meter from bottom to top.

3. The tower according to claim 2, characterized in that, The protective layer includes a first coating and a second coating. The first coating covers the surface of the tower body, and the second coating covers the outside of the first coating. The first coating includes a silane coupling agent, and the second coating includes a polyurethane topcoat.

4. The tower according to claim 3, characterized in that, The thickness of the first coating is 50μm-100μm, and the thickness of the second coating is 100μm-300μm.

5. The tower according to claim 4, characterized in that, The protective layer further includes a third coating layer, which covers the surface of the first coating layer. The third coating layer includes a zinc chromate epoxy primer and has a thickness of 100μm-200μm.

6. The tower according to claim 5, characterized in that, The protective layer further includes a fourth coating layer, which covers the surface of the third coating layer. The fourth coating layer includes an epoxy micaceous iron oxide intermediate varnish and has a thickness of 50μm-100μm. The second coating layer covers the surface of the fourth coating layer.

7. The tower according to claim 6, characterized in that, The protective layer further includes a fifth coating, which comprises a fluorocarbon topcoat and has a thickness of 50μm-100μm, covering the surface of the second coating.

8. The tower according to claim 7, characterized in that, It also includes reinforcing ribs, which are integrally formed with the precast tower section through a co-curing process.

9. The tower according to claim 8, characterized in that, The reinforcing ribs are T-shaped or cross-shaped.

10. A wind turbine generator set, characterized in that, Includes the tower described in any one of claims 1-9.

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