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 provided by the utility model is applied to the wind generating set and comprises a plurality of prefabricated cylinders, flange assemblies, hoisting assemblies and reinforcing ribs, the plurality of prefabricated cylinders are stacked in the height direction, and the adjacent prefabricated cylinders are detachably connected through the flange assemblies; the hoisting assemblies are arranged at the top and the bottom of the prefabricated barrel so that the prefabricated barrel can be hoisted through the hoisting assemblies, and reinforcing ribs are arranged on the inner wall of the prefabricated barrel. The utility model provides a tower and a wind generating set, which can save transportation cost and improve construction efficiency.

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] In recent years, with the global pursuit of clean energy, the wind power industry is booming, and the number and scale of wind power plant construction continue to grow. Among them, the tower as the key structure to support the wind turbine generator set, its design and construction directly affect the implementation effect of wind power project.

[0003] In the traditional wind power project construction, the tower usually adopts the integral design and construction mode. For complex terrain conditions such as remote mountainous areas and hills, due to the winding and narrow and rugged roads, large transport vehicles have great difficulty in passing. The integral tower has to be transported to the road for widening, reinforcing and other large-scale reconstruction due to its large volume and heavy weight, which not only consumes a lot of manpower, material resources and time cost, but also often causes transportation to be blocked due to too complex terrain, slowing down the construction efficiency. UTILITARIAN CONTENT

[0004] 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 can save transportation cost and improve construction efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] Firstly, the utility model provides a tower applied to wind turbine generator unit, which comprises prefabricated cylinder, flange assembly, hoisting assembly and reinforcing rib. The prefabricated cylinder has multiple, and the multiple prefabricated cylinders are stacked along the height direction. The adjacent prefabricated cylinders are detachably connected through the flange assembly.

[0007] The hoisting assembly is arranged at the top and bottom of the prefabricated cylinder to hoist the prefabricated cylinder through the hoisting assembly. The inner wall of the prefabricated cylinder is provided with reinforcing rib.

[0008] As an optional embodiment, the flange assembly comprises lower flange and upper flange. The lower flange and the top of one of the prefabricated cylinders are welded together. The upper flange and the bottom of another prefabricated cylinder are welded together. The upper flange and the lower flange are connected together through bolts to detachably connect the adjacent two prefabricated cylinders.

[0009] As an optional embodiment, the connecting surface of the upper flange is provided with protrusion, and the connecting surface of the lower flange is provided with groove.

[0010] Alternatively, the connecting surface of the lower flange is provided with protrusion, and the connecting surface of the upper flange is provided with groove.

[0011] As an optional implementation, a sealing ring is arranged between the protrusion and the groove.

[0012] As an optional implementation, the hoisting assembly comprises a lifting lug and a hoisting hole, the lifting lug is integrally arranged on the top of the prefabricated cylinder, and the hoisting hole is a threaded hole and is arranged on the bottom of the prefabricated cylinder.

[0013] As an optional implementation, the reinforcing rib is a grid-shaped steel structure, and the reinforcing rib is fixed to the inner wall of the prefabricated cylinder by welding or riveting.

[0014] As an optional implementation, the utility channel, the safety fence and the plurality of partitions are further included, the utility channel is arranged inside the prefabricated cylinder, the safety fence is arranged on both sides of the utility channel, and the plurality of partitions are arranged on the inner wall of the prefabricated cylinder in a height direction.

[0015] As an optional implementation, the observation window and the escape sliding device are further included, the observation window is arranged on the sidewall of the prefabricated cylinder of the top layer of the tower, and the escape sliding device is arranged at the observation window.

[0016] As an optional implementation, the prefabricated cylinder has a cylindrical structure or a conical cylinder structure, the height of the prefabricated cylinder is 3-15 m, and the diameter of the prefabricated cylinder is 2-8 m.

[0017] In the second aspect, the utility model also provides a wind generating set, including the tower of first aspect.

[0018] The tower provided by the utility model is applied to the wind generating set, and comprises a prefabricated cylinder, a flange assembly, a hoisting assembly and a reinforcing rib, the prefabricated cylinder has a plurality of, the plurality of prefabricated cylinders are arranged in a height direction and are stacked, adjacent prefabricated cylinders are detachably connected through the flange assembly, the hoisting assembly is arranged on the top and the bottom of the prefabricated cylinder, the prefabricated cylinder is hoisted through the hoisting assembly, and the inner wall of the prefabricated cylinder is provided with the reinforcing rib.

[0019] The tower provided by the utility model is stacked along the height direction through multiple prefabricated cylinders, and the design that the adjacent prefabricated cylinders are detachably connected through the flange assembly can cope with the transportation problem under the complex terrain, and in remote mountainous areas, hills and the like, without large-scale widening, reinforcement and reconstruction of the winding, narrow and rugged road like the traditional integral tower, the prefabricated cylinder with small volume and weight dispersion can be easily carried by the transportation vehicle, the manpower, material resources and time cost are greatly saved, the transportation obstruction situation is effectively avoided, and the construction efficiency is greatly improved, which saves valuable time for project promotion. Secondly, the hoisting assembly arranged at the top and bottom of the prefabricated cylinder is convenient and efficient for hoisting operation, whether the loading and unloading in the prefabrication link in the factory or the assembly and building at the construction site, the cylinder hoisting can be flexibly and quickly completed, and the construction process is further accelerated. Furthermore, the reinforcing rib arranged on the inner wall of the prefabricated cylinder effectively enhances the structural strength of the cylinder under the premise that the weight and transportation difficulty of the cylinder are not significantly increased, ensures that the tower stably and reliably bears various loads such as wind force and unit weight during the operation of supporting the wind turbine generator set, and guarantees long-term, safe and efficient operation of the entire wind power plant. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 The schematic view of the tower provided by the embodiment of the utility model is shown in the figure.

[0022] Figure 2 The structure of the prefabricated cylinder in the tower provided by the embodiment of the utility model is shown in the figure. Figure 1 The enlarged view of A in the figure.

[0023] Figure 3 The structure of the flange assembly in the tower provided by the embodiment of the utility model is shown in the figure.

[0024] Figure 4 The top view of the upper flange or the lower flange in the tower provided by the embodiment of the utility model is shown in the figure.

[0025] Figure 5 The schematic view of the wind turbine generator set provided by the embodiment of the utility model is shown in the figure.

[0026] Figure 6 The schematic view of the wind turbine generator set provided by the embodiment of the utility model is shown in the figure.

[0027] Explanation of reference signs:

[0028] 100-tower;

[0029] 110 - prefabricated cylinder;

[0030] 120 - flange assembly; 121 - upper flange; 122 - lower flange; 123 - protrusion; 124 - recess; 125 - sealing ring;

[0031] 130 - hoisting assembly; 131 - lifting lug; 132 - hoisting hole;

[0032] 140 - reinforcing rib;

[0033] 150 - maintenance access;

[0034] 160 - safety fence;

[0035] 170 - partition;

[0036] 180 - observation window;

[0037] 190 - escape slide device;

[0038] 200 - wind turbine generator. DETAILED DESCRIPTION

[0039] 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. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0040] In the application, the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "transverse", "longitudinal" and the like are the orientations or positional relationships shown based on the drawings. These terms are mainly used to better describe 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.

[0041] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the 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 of ordinary skill in the art can understand the specific meanings of these terms in the present application according to the specific circumstances.

[0042] In addition, the terms "mount", "set", "provided with", "connected", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated device, element or component. Unless otherwise stated, the meaning of "multiple" is two or more.

[0044] In the construction of traditional wind power projects, the tower is usually designed and built in an integral mode. In complex terrain conditions such as remote mountainous areas and hilly areas, due to the winding and narrow and rugged roads, large transport vehicles have great difficulty in passing. Due to the large volume and heavy weight of the integral tower, the road along the way has to be widened, reinforced and other large-scale modifications during transportation, which not only consumes a lot of manpower, material resources and time cost, but also often causes transportation to be blocked due to too complex terrain, slowing down the construction efficiency.

[0045] Therefore, the utility model provides a tower, which comprises a prefabricated cylinder, a flange assembly, a hoisting assembly and a reinforcing rib, the prefabricated cylinder has a plurality of, the plurality of prefabricated cylinders are arranged in a stacking mode along the height direction, and adjacent prefabricated cylinders are detachably connected through the flange assembly; the hoisting assembly is arranged at the top and bottom of the prefabricated cylinder, and the inner wall of the prefabricated cylinder is provided with the reinforcing rib. The tower is arranged in a stacking mode along the height direction through a plurality of prefabricated cylinders, and adjacent prefabricated cylinders are detachably connected through the flange assembly, which can solve the transportation problem in complex terrain. Unlike the traditional integral tower, the road does not need to be widened, reinforced and modified on a large scale, and the transport vehicle can easily carry the prefabricated cylinder with small volume and dispersed weight, greatly saving manpower, material resources and time cost, effectively avoiding the situation of blocked transportation, greatly improving the construction efficiency, and gaining valuable time for project promotion. The hoisting assembly arranged at the top and bottom of the prefabricated cylinder makes the hoisting operation convenient and efficient, and whether it is loading and unloading in the prefabrication link of the factory or assembling and building at the construction site, the cylinder hoisting can be flexibly and quickly completed, further accelerating the construction process. Furthermore, the reinforcing rib arranged on the inner wall of the prefabricated cylinder effectively enhances the structural strength of the cylinder without significantly increasing the weight and transportation difficulty of the cylinder, ensures that the tower can stably and reliably bear various loads such as wind force and unit weight during the operation of the wind turbine generator set, and guarantees the long-term, safe and efficient operation of the entire wind power plant.

[0046] Figure 1 A schematic diagram of a tower provided by an embodiment of the present application is shown in FIG. 1. Figure 2 A Figure 1 An enlarged view of position A in FIG. 1. Figure 3 A structural schematic diagram of a prefabricated cylinder in a tower provided by an embodiment of the present application is shown in FIG. 2. Figure 4 A structural schematic diagram of a flange assembly in a tower provided by an embodiment of the present application is shown in FIG. 3. Figure 5 A top view of an upper flange or a lower flange in a tower provided by an embodiment of the present application is shown in FIG. 4. Figure 6 A schematic diagram of a wind turbine generator provided by an embodiment of the present application is shown in FIG. 5.

[0047] Reference can be made to Figures 1 to 6 An embodiment of the present application provides a tower 100, which is applied to a wind turbine generator 200 and includes prefabricated cylinders 110, a flange assembly 120, a hoisting assembly 130, and reinforcing ribs 140. The prefabricated cylinders 110 are multiple, and the multiple prefabricated cylinders 110 are arranged in a stacking manner along a height direction. Adjacent prefabricated cylinders 110 are detachably connected through the flange assembly 120. The hoisting assembly 130 is arranged at the top and the bottom of the prefabricated cylinder 110, so as to hoist and transport the prefabricated cylinder 110 through the hoisting assembly 130. The inner wall of the prefabricated cylinder 110 is provided with the reinforcing ribs 140.

[0048] The tower 100 provided by an embodiment of the present application is arranged in a stacking manner along a height direction through multiple prefabricated cylinders 110, and adjacent prefabricated cylinders 110 are detachably connected through the flange assembly 120. This design can solve the transportation problem in complex terrain. In remote mountainous areas, hills, and the like, the winding, narrow, and rugged road does not need to be widely widened and reinforced and reconstructed like the traditional integral tower 100. The transportation vehicle can easily carry the prefabricated cylinder 110 which is small in size and light in weight. The manpower, material resources, and time cost are greatly saved, the transportation obstruction is effectively avoided, the construction efficiency is greatly improved, and valuable time is saved for project promotion. In addition, the hoisting assembly 130 arranged at the top and the bottom of the prefabricated cylinder 110 makes the hoisting operation convenient and efficient. Whether in the loading and unloading of the prefabricated cylinder in the factory or in the assembly and construction of the construction site, the cylinder hoisting can be flexibly and quickly completed, and the construction process is further accelerated. Furthermore, the reinforcing ribs 140 arranged on the inner wall of the prefabricated cylinder 110 effectively enhance the structural strength of the cylinder without significantly increasing the weight and transportation difficulty of the cylinder. The tower 100 can stably and reliably bear various loads such as wind force and weight of the wind turbine generator 200 during operation of the wind turbine generator 200, and the entire wind power plant can be operated for a long time, safely and efficiently.

[0049] In the above embodiment, the flange assembly 120 can include a lower flange 122 and an upper flange 121, the lower flange 122 is welded with the top of one of the prefabricated cylinder bodies 110, the upper flange 121 is welded with the bottom of another prefabricated cylinder body 110, and the upper flange 121 and the lower flange 122 are connected together by bolts to detachably connect the two adjacent prefabricated cylinder bodies 110. It can be understood that, by welding the lower flange 122 with the top of the prefabricated cylinder body 110 and welding the upper flange 121 with the bottom of another prefabricated cylinder body 110, the stability of the connection between the flange and the cylinder body is ensured, so that the vibration and swing generated during the operation of the wind turbine generator set 200 can be effectively resisted, and a solid guarantee for the overall structure of the tower 100 is provided. Secondly, the upper flange 121 and the lower flange 122 are connected to the two adjacent prefabricated cylinder bodies 110 by bolts, on the one hand, the detachable function is realized, when facing complex terrain transportation, the tower 100 can be disassembled into prefabricated cylinder bodies 110 for easy transportation, avoiding the road reconstruction problem caused by the large size and heavy weight of the traditional integral tower 100, greatly reducing the transportation cost and improving the transportation efficiency; on the other hand, the bolt connection is convenient for on-site rapid assembly, construction personnel can efficiently complete the butt joint between the cylinder bodies according to the accurate engineering standard by using simple tools, compared with the traditional welding process which needs complex equipment, professional welders and long welding time, the construction period of the tower 100 is greatly shortened, and the construction process of the entire wind power project is accelerated.

[0050] In the above embodiment, the connecting surface of the upper flange 121 can be provided with a protrusion 123, and the connecting surface of the lower flange 122 can be provided with a groove 124; or the connecting surface of the lower flange 122 is provided with a protrusion 123, and the connecting surface of the upper flange 121 is provided with a groove 124. When the protrusion 123 is arranged on the connecting surface of the upper flange 121 and the groove 124 is arranged on the connecting surface of the lower flange 122, or vice versa, the concave-convex matching can play a precise positioning role. When assembling the adjacent prefabricated cylinder bodies 110 on the construction site, the protrusion 123 and the groove 124 fit with each other like a mortise and tenon structure, the construction personnel can quickly align the two flanges, greatly improving the accuracy and speed of assembly, effectively reducing the assembly deviation caused by human operation errors, reducing the risk of rework, thereby accelerating the construction process of the entire tower 100. And after the assembly is completed, the protrusion 123 can be embedded in the groove 124, compared with the planar connection, they can bear more shear force in more directions, further strengthening the connection strength between the upper and lower flanges 122, so that the connection part of the adjacent prefabricated cylinder bodies 110 is still stable and reliable when the tower 100 is subjected to strong wind impact, unit vibration and other complex working conditions, laying a solid foundation for the safe and stable operation of the wind turbine generator set 200, and ensuring the long-term and efficient operation of the wind power project.

[0051] In the above embodiment, the sealing ring 125 can be arranged between the protrusion 123 and the groove 124. The sealing ring 125 can effectively prevent impurities such as rain, dust, and moisture from the outside from entering the inside of the tower 100, avoiding problems such as corrosion of the cylinder and short circuit of electrical elements caused by the impurities, greatly prolonging the service life of the tower 100 and the internal equipment, and reducing the maintenance cost. Moreover, the sealing ring 125 can also play a buffering and filling role. When the tower 100 is subjected to external forces such as wind impact and unit vibration, the sealing ring 125 can absorb part of the impact force, prevent the protrusion 123 and the groove 124 from being damaged due to frequent friction and collision, maintain the close fit between the two, and further ensure the stability of the connection of the upper and lower flanges 122, ensuring that the entire tower 100 structure is still stable under complex working conditions, and providing further protection for the continuous and reliable operation of the wind power plant.

[0052] In the above embodiment, the hoisting assembly 130 can include a lifting lug 131 and a hoisting hole 132. The lifting lug 131 is integrally and fixedly arranged at the top of the prefabricated cylinder 110, and the hoisting hole 132 is a threaded hole and is arranged at the bottom of the prefabricated cylinder 110. The lifting lug 131 is integrally and fixedly arranged at the top of the prefabricated cylinder 110, which can ensure the high strength and stability of the connection between the lifting lug 131 and the cylinder. During hoisting, the lifting lug 131 can withstand a large tensile force without the risk of loosening or falling off, providing a solid guarantee for safe and efficient hoisting. Whether it is the transfer of prefabricated parts in the factory or the positioning of the cylinder at the construction site, with the stable lifting lug 131, large hoisting equipment can accurately and stably control the lifting and lowering of the prefabricated cylinder 110, greatly reducing the probability of hoisting accidents. The hoisting hole 132 is designed as a threaded hole and arranged at the bottom of the prefabricated cylinder 110. On the one hand, the threaded hole form facilitates quick connection with various hoisting tools, and construction personnel only need to simply screw the appropriate bolts or hooks to complete the hoisting preparation, which is convenient and efficient, and greatly saves the on-site preparation time. On the other hand, the bottom hoisting hole 132 cooperates with the top lifting lug 131 to realize bidirectional force traction of the prefabricated cylinder 110, making the hoisting process more stable and controllable, avoiding problems such as cylinder tilting and shaking caused by uneven single-point force, and further ensuring the safety of hoisting.

[0053] In the above embodiment, the reinforcing rib 140 can be a grid-shaped steel structure, and the reinforcing rib 140 is fixed to the inner wall of the prefabricated cylinder 110 by welding or riveting. It can be understood that when the tower 100 faces various complex stress situations brought by the operation of the wind turbine generator set 200, such as lateral force under strong wind impact, gravity of the set itself, and vibration load generated during operation, etc., the grid-shaped reinforcing rib 140 can uniformly disperse these forces, effectively prevent local deformation or stress concentration of the cylinder, and ensure the stability and reliability of the overall structure of the tower 100. The reinforcing rib 140 is made of steel material, and the high strength characteristics of steel can further enhance the carrying capacity of the tower 100, while ensuring the structural strength, the steel material also has good toughness and can adapt to a certain degree of deformation without brittle fracture, which provides additional fault tolerance capability for the tower 100 to cope with extreme working conditions. The reinforcing rib 140 and the inner wall of the prefabricated cylinder 110 are fixed by welding or riveting. The welding can realize the nearly seamless connection between the reinforcing rib 140 and the cylinder, form an organic whole, and maximize the stress transfer to ensure the reinforcement effect. Riveting is relatively flexible, which is convenient for on-site installation and later maintenance. When it is necessary to replace part of the reinforcing rib 140, the operation is more convenient.

[0054] In the above embodiment, the maintenance channel 150, the safety guardrail 160 and the plurality of partitions 170 can also be included. The maintenance channel 150 is arranged inside the prefabricated cylinder 110, the safety guardrail 160 is arranged on both sides of the maintenance channel 150, and the plurality of partitions 170 are arranged on the inner wall of the prefabricated cylinder 110 in the height direction. During daily inspection, fault finding and maintenance, the operation and maintenance personnel can directly reach each key part of the tower 100 through the maintenance channel 150 quickly and conveniently, thereby improving the maintenance efficiency. The safety guardrail 160 is arranged on both sides of the maintenance channel 150, which can ensure the personal safety of the operation and maintenance personnel. In the high-altitude working environment, the risk of falling is extremely high, and the safety guardrail 160 as an entity protection facility can effectively block the personnel from stepping out of the channel boundary, thereby reducing the possibility of such safety accidents. Whether it is regular inspection or emergency repair, as long as the operation and maintenance personnel are in the maintenance channel 150, the guardrail can provide reliable protection, so that they can focus on the maintenance task. The plurality of partitions 170 are arranged on the inner wall of the prefabricated cylinder 110 in the height direction, which can cooperate with the grid-shaped reinforcing rib 140 to strengthen the overall structural strength of the tower 100, so that the tower 100 is more stable when subjected to external forces such as wind and vibration of the set. The partitions 170 can also divide the inside of the cylinder into a plurality of relatively independent areas, which is conducive to the classified management of equipment, cables and the like at different levels, avoids messy storage of articles, improves the effective utilization rate of space, and also builds a clear layout framework for subsequent maintenance and upgrading work, thereby ensuring long-term and stable operation of the wind power project.

[0055] In the above embodiment, the observation window 180 can be further included, which is arranged on the sidewall of the prefabricated cylinder 110 of the top layer of the tower 100, and the escape sliding device 190 is arranged at the observation window 180. The observation window 180 is arranged on the sidewall of the prefabricated cylinder 110 of the top layer of the tower 100, which can provide an open view for the operation and maintenance personnel. In daily inspection, the operation and maintenance personnel can directly and clearly view the key information such as the blade operation state of the wind turbine generator set 200, the wind vane direction, and the surrounding airspace environment through the observation window 180 without the need to risk going out of the tower 100 to observe, which not only reduces the risk of high-altitude operation, but also improves the convenience and immediacy of information acquisition. In troubleshooting, the operation and maintenance personnel can quickly locate the problem, such as observing whether there is a crack in the blade, whether the connecting part of the unit is loose, and the like, to provide a strong basis for subsequent accurate maintenance, thereby effectively shortening the downtime and ensuring the continuous and efficient operation of the wind power project. The escape sliding device 190 is arranged at the observation window 180, and once the tower 100 encounters an emergency situation such as fire, strong wind leading to structural damage, and the like, the escape sliding device 190 can be immediately used when the operation and maintenance personnel are trapped on the top layer. A relatively safe escape channel is provided for the operation and maintenance personnel. Compared with the traditional climbing escape mode, the sliding device uses gravity to enable personnel to quickly escape from danger and reduce the time spent in a dangerous environment, thereby maximizing the safety of the operation and maintenance personnel and ensuring that the personnel casualty risk of the wind power project is controllable in extreme situations.

[0056] In the above embodiment, the prefabricated cylinder 110 has a cylindrical structure or a conical cylinder structure, the height of the prefabricated cylinder 110 is 3-15 meters, and the diameter is 2-8 meters. When the prefabricated cylinder 110 has a cylindrical structure, its stress characteristics are relatively uniform, and when bearing the vertical downward gravity and horizontal wind force exerted by the wind turbine generator set 200, the geometric shape of the cylinder can make the stress more evenly distributed along the circumferential direction, effectively avoiding the problem of local stress concentration, thereby ensuring the stability of the tower 100 as a whole. At the same time, the cylindrical structure is relatively simple, which is conducive to the implementation of mold manufacturing and forming process in the prefabricated processing link, and is beneficial to improve the production efficiency and reduce the manufacturing cost. When the prefabricated cylinder 110 has a conical cylinder structure, the conical cylinder gradually reduces in size from bottom to top, which is highly consistent with the wind load distribution law of the wind turbine generator set 200, and can better cope with the actual working conditions of high-altitude wind speed and strong wind load. Near the top area, the smaller diameter makes the resistance generated by the wind relatively small when passing through, thereby reducing the impact of the wind on the top of the tower 100, and further improving the ability of the tower 100 to resist strong winds.

[0057] The height of the prefabricated cylinder 110 should not be too low or too high. If the height is less than 3 meters, a large number of cylinders need to be spliced when a higher wind power tower 100 is built, which not only increases the workload of on-site splicing and prolongs the construction period, but also affects the stability of the overall structure due to too many splicing seams. If the height is too high, more than 15 meters, on the one hand, the transportation difficulty is greatly increased, and on the other hand, the lifting height and capacity requirements of large hoisting equipment are also extremely high during on-site assembly, which is prone to safety hazards. In addition, the diameter of the prefabricated cylinder 110 should also be moderate. If the diameter is less than 2 meters, the internal space is too narrow, which will bring great inconvenience to the subsequent maintenance passage 150 setting, equipment installation and daily work of operation and maintenance personnel. If the diameter is too large, more than 8 meters, the transportation difficulty is also greatly increased, and the transportation road needs to be widened, reinforced and treated, which consumes a lot of manpower, material resources and time. In addition, the area and flatness requirements of the construction site are extremely high during assembly, and any carelessness may cause problems such as cylinder inclination and collision, affecting the construction progress and quality.

[0058] In addition, the utility model embodiment still provides a kind of wind generating set 200, including the tower 100 in above-mentioned embodiment, which includes prefabricated cylinder 110, flange assembly 120, hoisting assembly 130 and reinforcing rib 140, prefabricated cylinder 110 has multiple, multiple prefabricated cylinder 110 is stacked along height direction, and adjacent prefabricated cylinder 110 is detachably connected by flange assembly 120;Hoisting assembly 130 is set to the top and bottom of prefabricated cylinder 110, and the inner wall of prefabricated cylinder 110 is provided with reinforcing rib 140.The tower 100 is stacked along height direction by multiple prefabricated cylinder 110, and adjacent prefabricated cylinder 110 is detachably connected by the design of flange assembly 120, which can solve the transportation problem under complex terrain, without the need for large-scale widening, reinforcement and reconstruction of the road like traditional integral tower 100, and the transportation vehicle can easily carry the prefabricated cylinder 110 with small volume and dispersed weight, greatly saving manpower, material resources and time cost, effectively avoiding transportation obstruction, greatly improving construction efficiency, and gaining valuable time for project promotion. Hoisting assembly 130 is set to the top and bottom of prefabricated cylinder 110, which makes hoisting operation convenient and efficient, whether in the loading and unloading of prefabrication in factory or in the assembly and construction of construction site, cylinder hoisting can be flexibly and quickly completed, further speeding up the construction process. Reinforcing rib 140 is set to the inner wall of prefabricated cylinder 110, which effectively enhances the structural strength of the cylinder without significantly increasing the weight and transportation difficulty of the cylinder, ensures that the tower 100 can stably and reliably bear various loads such as wind force and unit weight during the operation of wind generating set 200, and guarantees the long-term, safe and efficient operation of the entire wind power plant.

[0059] 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, Applied to wind turbine generator sets, it includes a prefabricated cylinder, a flange assembly, a hoisting assembly, and reinforcing ribs. There are multiple prefabricated cylinders, which are stacked along the height direction. Adjacent prefabricated cylinders are detachably connected through the flange assembly. The hoisting assembly is located at the top and bottom of the precast cylinder to hoist the precast cylinder. The inner wall of the precast cylinder is provided with the reinforcing ribs.

2. The tower according to claim 1, characterized in that, The flange assembly includes a lower flange and an upper flange. The lower flange is welded to the top of one of the precast cylinders, and the upper flange is welded to the bottom of the other precast cylinder. The upper flange and the lower flange are bolted together to detachably connect two adjacent precast cylinders.

3. The tower according to claim 2, characterized in that, The upper flange has a protrusion on its connecting surface, and the lower flange has a groove on its connecting surface; Alternatively, the connecting surface of the lower flange may have a protrusion, and the connecting surface of the upper flange may have a groove.

4. The tower according to claim 3, characterized in that, A sealing ring is provided between the protrusion and the groove.

5. The tower according to claim 4, characterized in that, The hoisting assembly includes a lifting lug and a hoisting hole. The lifting lug is integrally fixed to the top of the precast cylinder, and the hoisting hole is a threaded hole and is opened at the bottom of the precast cylinder.

6. The tower according to claim 5, characterized in that, The reinforcing ribs are a grid-like steel structure, and the reinforcing ribs are fixed to the inner wall of the precast cylinder by welding or riveting.

7. The tower according to claim 6, characterized in that, It also includes an inspection passage, safety railings, and multiple partitions. The inspection passage is located inside the precast cylinder, the safety railings are located on both sides of the inspection passage, and the multiple partitions are spaced apart along the height direction on the inner wall of the precast cylinder.

8. The tower according to claim 7, characterized in that, It also includes an observation window and an escape descent device. The observation window is located on the side wall of the prefabricated cylinder at the top of the tower, and the escape descent device is located at the observation window.

9. The tower according to claim 8, characterized in that, The precast cylinder has a cylindrical or conical structure, and its height is 3-15 meters and its diameter is 2-8 meters.

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

Images