CN112796955A - Wind power tower barrel, fan and fan construction method - Google Patents

Abstract

The application discloses a wind power tower cylinder, a fan and a fan construction method. The wind power tower comprises a plurality of tower units and a plurality of jacking mechanisms. The tower units are sequentially sleeved from inside to outside, and two adjacent tower units can relatively slide along the axial direction of the wind power tower. The jacking mechanism is arranged between two adjacent tower drum units and used for jacking one of the two adjacent tower drum units. The technical scheme that this application provided can solve among the prior art fan construction degree of difficulty height, problem that construction cost is high.

Description

Wind power tower barrel, fan and fan construction method

Technical Field

The application relates to the technical field of fan construction, in particular to a wind power tower cylinder, a fan and a fan construction method.

Background

The wind power tower is an important component of the wind generating set and is used for supporting the engine room and the wind wheel, lifting the wind wheel to a corresponding height for operation and obtaining enough wind power to drive the generating set to generate electricity.

Along with the increase of unit capacity, the cabin is also bigger and bigger, hundreds of tons of cabins move often, tens of tons of wheel hubs and 100 meters of hoisting height have also greatly increased the construction degree of difficulty, have improved construction cost, and the concrete problem lies in:

1. beach wind power and offshore wind power are the wind power construction field at the leading edge at present. As the tidal flat wind power plant is generally positioned in a coastal tidal flat area, the geological condition is poor, the offshore wind power hoisting environment is poor, the requirement on crane equipment is extremely high, and the cost is extremely high.

2. The traditional wind power construction crane is frequent in assembly times, time and labor are consumed in hoisting and assembling, and the project construction period is limited. The effective utilization time and the use efficiency of project machinery are greatly influenced, and the project construction cost and the economic benefit are influenced.

3. The land acquisition range of general owners of beach wind power is limited, and the assembly site for installing a fan crane is limited. The project has extremely strict requirements on environmental protection and the like. Traditional filling needs to occupy large tracts of land place, and is great to the ecological environment influence, greatly increased cubic metre of earth and stone construction costs.

4. Traditional wind-powered electricity generation fan hoist and mount and construction receive place and environmental impact, and the hoist and mount risk is great, and the installation accuracy is difficult to control.

Disclosure of Invention

The application provides a wind power tower cylinder, a fan and a fan construction method, and solves the problems that in the prior art, the fan construction difficulty is high and the construction cost is high.

In a first aspect, the present invention provides a wind tower, comprising:

the wind power tower comprises a plurality of tower drum units, a plurality of wind power tower units and a plurality of wind power tower units, wherein the tower drum units are sequentially sleeved from inside to outside, and two adjacent tower drum units can relatively slide along the axial direction of the wind power tower; and

and the jacking mechanisms are arranged between the two adjacent tower drum units and used for jacking one of the two adjacent tower drum units.

In the implementation process, the tower drum unit can be manufactured in a factory, the quality of the tower drum unit is easy to control, and the safety and reliability of the wind power tower drum are guaranteed. The jacking mechanism jacks one of two adjacent tower drum units of the tower drum corresponding to the jacking mechanism, and after all the jacking mechanisms complete work, the wind power tower drum can reach a designed elevation. Because the tower drum unit is lifted by the jacking mechanism, the hoisting operation is not needed, the utilization rate of hoisting machinery is effectively reduced in the whole fan construction process, and the construction cost is controlled. It should be noted that, when the wind power tower installation construction is not performed, each tower unit can be transported to a construction site in an independent state, and then the sleeving assembly is performed at the present time of the construction; or, in a factory, all the tower drum units are sleeved in place, and all the tower drum units are transported to a construction site in an integrated state.

In an alternative embodiment, the jacking mechanism is used for jacking the inner tower unit of two adjacent tower units.

In the process of the realization, when the wind power tower drum is installed and constructed, the jacking mechanisms between the two adjacent tower drum units work to jack the inner side of the two, and in the same way, the plurality of tower drum units finally rise to the designed elevation under the work of the plurality of jacking mechanisms in the axis direction of the wind power tower drum. It should be noted that, at the beginning of construction, the lowest, i.e., outermost tower unit may be conveniently fixed to a bearing platform or other fixed platform, and finally the highest, i.e., innermost tower unit is used for supporting the wind turbine nacelle. It should be noted that, in other specific embodiments, the jacking mechanism may also be used to jack an outer tower unit of two adjacent tower units, where under the limitation, the innermost tower unit is used to be connected with a bearing platform or other fixed platform, and the outermost tower unit is lifted to the highest position by the layer-by-layer jacking of the multiple jacking mechanisms to support the nacelle.

In an optional embodiment, a limiting structure is configured between two adjacent tower units, and is used for restricting the two adjacent tower units from sliding relatively along the axial direction of the wind power tower.

In the implementation process, the relative positions of two adjacent tower drum units can be constrained through the limiting structure, and for example, in combination with the limitation of the jacking position of the jacking mechanism, the tower drum unit on the inner side accurately moves along the specified direction under the action of the jacking mechanism; during actual construction, the limiting structure can ensure the installation verticality of the wind power tower cylinder, so that smooth construction of the wind power tower cylinder is realized.

In an alternative embodiment, the limiting structure comprises a clamping groove and a clamping block. The clamping groove is arranged on one of the two adjacent tower drum units, and the clamping block is arranged on the other of the two adjacent tower drum units;

the clamping block is slidably embedded in the clamping groove along the axis direction of the wind power tower.

In the implementation process, when the jacking mechanism works, the tower drum unit on the inner side can accurately move along the axis direction of the wind power tower drum under the limitation of the clamping block and the clamping groove, so that the condition of deviation is avoided, and the mounting verticality of the wind power tower drum is controlled; it should be noted that, in one case, the clamping groove is arranged on the inner wall of the tower drum unit on the outer side, and the clamping block is arranged on the outer wall of the tower drum unit on the inner side; in another case, the clamping groove is formed in the outer wall of the inner side unit, and the clamping block is arranged on the inner wall of the outer side tower drum unit. Meanwhile, it should be noted that the limiting structure includes, but is not limited to, the structural forms of the clamping groove and the clamping block, so as to restrict the adjacent two tower drum units to only slide along the axial direction of the wind power tower drum; meanwhile, it should be noted that the number of the limiting structures is not limited, and may be one, two, three, or four.

In an alternative embodiment, the jacking mechanism comprises a hydraulic jack.

In the process of realizing, in two adjacent tower drum units, the hydraulic jack is fixed on the inner wall of the tower drum unit on the outer side, and the lifting execution end of the hydraulic jack is abutted against the tower drum unit on the inner side, so that the tower drum unit on the inner side is jacked. It should be noted that, in other specific embodiments, the jacking mechanism may also be an air pressure jacking device or other jacking devices, so as to achieve the purpose of jacking the tower drum unit.

In an alternative embodiment, the innermost tower unit is provided with a nacelle mounting structure;

the wind power tower cylinder further comprises hanging basket equipment, and the hanging basket equipment is installed on the hanging basket installation structure.

In the process of the implementation, during the installation and construction of the wind power tower, after each section of tower drum unit is jacked, constructors move to the position near the jacked tower drum unit by utilizing the hanging basket equipment, and two tower drum units which are in relative displacement are welded or installed through high-strength bolts. It should be noted that after each section of tower drum unit is jacked under the action of the jacking mechanism, constructors need to perform a fixing procedure on two tower drum units which are in relative displacement, so as to ensure firm connection between the tower drum units and ensure the structural stability of the wind power tower drum, thereby ensuring the normal operation of the fan; it should be noted that, the basket equipment can be configured with a plurality of strands of reinforced steel bar ropes so as to improve the safety factor of the basket equipment; meanwhile, in this embodiment, the construction worker is moved to the construction position by using the basket device, and in other specific embodiments, the construction worker may be moved to the construction position by using other devices capable of moving the construction worker.

In an alternative embodiment, the basket mounting structure comprises an i-steel mast welded to the top end of the innermost tower unit.

In an alternative embodiment, the innermost tower unit may be longer than the remaining tower units.

In the implementation process, the length of the innermost tower drum unit is longest, so that the innermost tower drum unit can be independently exposed to other tower drum units when the jacking mechanism does not work, and the installation of the fan engine room is facilitated.

In an optional embodiment, a settlement sensing device is configured between two adjacent tower units, and is used for sensing the lifting between the two adjacent tower units.

The in-process of above-mentioned realization, through subsiding induction system, can real-time recording tower drum unit by the position of jacking, the monitoring that makes things convenient for tower drum unit to subside to tower drum unit when tower drum unit is by the jacking and later stage guarantees the normal work of fan.

In a second aspect, the present invention provides a wind turbine comprising:

a nacelle;

a fan blade; and

the wind tower of any of the preceding embodiments;

the engine room is connected with the tower unit positioned at the innermost side, and the fan blades are arranged on the engine room.

In the implementation process, the engine room is located at the top of the wind power tower cylinder and assembled with the fan blades to generate electricity under the action of wind force, and it is noted that in the actual construction of the fan, the engine room can be fixed on the innermost tower cylinder unit, and when the tower cylinder unit rises to the designed elevation under the action of the jacking mechanism, the fan blades are hoisted again to reduce the workload of the jacking mechanism and ensure that the tower cylinder unit rises smoothly to the designed elevation.

In a third aspect, the invention provides a wind turbine construction method, in which the wind turbine tower of the foregoing embodiment is applied, the method including the steps of:

assembling tower drum units, and sequentially sleeving a plurality of tower drum units;

mounting a first section of tower drum unit, and mounting the tower drum unit at the first section on a bearing platform;

hoisting the engine room, and hoisting the fan engine room on the tower drum unit at the tail section;

jacking and fixing the tower drum units, jacking the corresponding tower drum units through the jacking mechanism according to a set sequence, and fixing two adjacent tower drum units which slide relatively;

installing fan blades, and hoisting the fan blades to an engine room after the wind power tower cylinder is jacked to a designed elevation;

and (5) electric installation and fan debugging.

In the implementation process, the wind power tower exemplarily includes four tower units, the tower unit at the first section is taken as a first tower unit (when the jacking position of the jacking mechanism is defined as the inner tower unit, the outermost tower unit is the tower unit at the first section, i.e., the first tower unit), and the tower unit at the last section is taken as a fourth tower-receiving unit (when the jacking position of the jacking mechanism is defined as the inner tower unit, the innermost tower unit is the tower unit at the last section, i.e., the fourth tower unit); the mode of 'sesame blossom and node height' is adopted for installation and construction:

assembling the four sections of tower drum units, transporting the four sections of tower drum units to a construction site, hoisting the first section of tower drum unit by using crane equipment and fixing the first section of tower drum unit on a concrete bearing platform, and hoisting the fan engine room to the fourth section of tower drum unit, wherein the crane equipment can leave; and then jacking up the tower units and fixing two adjacent tower units at the same time according to a set sequence, wherein the set sequence can comprise the following two conditions, the first situation is that firstly, a jacking mechanism positioned between a first section of tower drum unit and a second section of tower drum unit is utilized to jack the second section of tower drum unit to a designed height, a constructor welds the first section of tower drum unit and the second section of tower drum unit or adopts a bolt mode for connection, then, the jacking mechanism positioned between the second section of tower drum unit and the third section of tower drum unit is utilized to jack the third section of tower drum unit to the designed height, the constructor welds the second section of tower drum unit and the third section of tower drum unit or adopts a bolt mode for connection, then, the jacking mechanism positioned between the third section of tower drum unit and the fourth section of tower drum unit is utilized to jack the fourth section of tower drum unit to the designed height, and the constructor welds the third section of tower drum unit and the fourth section of tower drum unit or adopts a bolt mode; in the second situation, firstly, a jacking mechanism positioned between a third section of tower drum unit and a fourth section of tower drum unit is utilized to jack the fourth section of tower drum unit to the designed height, a constructor welds the third section of tower drum unit and the fourth section of tower drum unit or adopts a bolt mode for connection, then, the jacking mechanism positioned between a second section of tower drum unit and the third section of tower drum unit is utilized to jack the third section of tower drum unit to the designed height, the constructor welds the second section of tower drum unit and the third section of tower drum unit or adopts a bolt mode for connection, then, the jacking mechanism positioned between the first section of tower drum unit and the second section of tower drum unit is utilized to jack the second section of tower drum unit to the designed height, and the constructor welds the first section of tower drum unit and the second section of tower drum unit or adopts a bolt;

at the moment, the whole wind power tower barrel reaches the design elevation; then, the crane equipment can enter the field, and the fan blades are hoisted to the fan cabin to complete the installation of the fan blades; and finally, the constructor carries out the electrical installation and debugging tasks of the fan to complete the construction. By the construction method, the installation precision of the wind power tower barrel is improved, the utilization rate of crane equipment is reduced, and the problems of poor hoisting environment, high requirement on the crane equipment, high cost and high cost in the prior art are solved; meanwhile, the utilization rate of crane equipment is reduced, so that the problems that the conventional wind power construction crane is frequent in assembly times, time and labor are consumed in hoisting and assembling, and the project construction period is restricted are solved, and the problems that the effective utilization time and the use efficiency of project machinery are greatly influenced and the project construction cost and the economic benefit are influenced in the conventional construction are also solved; meanwhile, the crane equipment only hoists the first tower drum unit, the engine room and the fan blades, so that the requirement on the performance of the crane equipment is greatly reduced, the hoisting height is lower, the crane can exert the hoisting performance of the crane, a large truck crane can be directly adopted for hoisting, the cost is saved, meanwhile, the requirement of the crane equipment on the site is reduced, and the hoisting risk is also reduced.

In an alternative embodiment, the tower unit at the end is provided with a gondola device;

in the step of jacking and fixing the tower drum units, a constructor fixes two adjacent tower drum units which slide relatively through the hanging basket equipment.

In the process of the realization, a constructor utilizes the hanging basket equipment to rapidly move to the position near the jacked tower drum unit, and the two tower drum units which are in relative displacement are welded or installed through high-strength bolts.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of a plurality of tower units of the present embodiment shown in an un-jacked position;

FIG. 2 is a schematic diagram illustrating a plurality of tower units being lifted according to the present embodiment;

FIG. 3 is a sectional view of a plurality of tower units of the present embodiment sequentially nested from inside to outside and not lifted;

FIGS. 4A and 4B are sectional views respectively illustrating two adjacent tower units;

FIG. 5 is a schematic internal view of a plurality of tower units of this embodiment after being lifted;

FIG. 6 is a schematic view of a basket mounting structure in the present embodiment;

FIG. 7 is a schematic view of a blower fan according to the present embodiment;

FIG. 8 is a flowchart showing a method of constructing the wind turbine according to the present embodiment;

fig. 9A and 9B together show a working process schematic diagram of the fan construction.

Icon: 1A-a wind power tower cylinder; 10-a tower unit; 10 a-a first section of tower unit; 10 b-a second section of tower unit; 10 c-a third section of tower unit; 10 d-a fourth tower unit section; 11-a limiting structure; 12-a card slot; 13-a cartridge; 14-basket mounting structure; 14 a-an i-beam derrick; 14 b-channel beam; 14 c-steel ladder stand; 15-a basket device; 16-a steel wire rope; 17-a safety lock; 18-a hoist; 19-an electrical control system; 20-basket body; 21-a nacelle; 22-fan blades; 23-concrete cap; and 24, repairing the door opening.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The technical solution in the present application will be described below with reference to the accompanying drawings.

The embodiment provides a wind power tower cylinder 1A, can solve among the prior art the fan construction degree of difficulty height, problem that construction cost is high.

The wind tower 1A includes a plurality of tower units 10 and a plurality of jacking mechanisms.

The tower units 10 are configured to be sequentially sleeved from inside to outside, and two adjacent tower units 10 can relatively slide along the axial direction of the wind power tower 1A.

The jacking mechanism is arranged between two adjacent tower units 10 and used for jacking one of the two adjacent tower units 10.

Referring to fig. 1 to fig. 3, fig. 1 is a schematic view illustrating a plurality of tower units 10 of this embodiment when not being jacked up, fig. 2 is a schematic view illustrating a plurality of tower units 10 of this embodiment after being jacked up, and fig. 3 is a cross-sectional view illustrating a plurality of tower units 10 of this embodiment being nested from inside to outside and not being jacked up.

In the implementation process, the tower drum unit 10 can be manufactured in a factory, the quality of the tower drum unit is easy to control, and the safety and reliability of the wind power tower drum 1A are guaranteed. The jacking mechanism jacks one of the two adjacent tower drum units 10 of the tower drum corresponding to the jacking mechanism, and after all the jacking mechanisms complete work, the wind power tower drum 1A can reach a designed elevation. Because the tower drum unit 10 is lifted by the jacking mechanism, the hoisting operation is not needed, the utilization rate of hoisting machinery is effectively reduced in the whole fan construction process, and the construction cost is controlled. It should be noted that, when the wind power tower 1A is not installed, each tower unit 10 may be transported to the construction site in an independent state, and then the sleeving assembly is performed at the present time of construction; alternatively, all of the tower units 10 may be nested in place at the factory and all of the tower units 10 may be transported to the construction site in an integrated state.

It should be noted that, when the axes of each tower unit 10 coincide, that is, when it is ensured that the assembly accuracy of all the tower units 10 is high, the axis direction of the tower unit 10 is equal to the axis direction coinciding with the wind power tower 1A, and when the tower unit 10 is hoisted and fixed on other fixed platforms such as a bearing platform, the axis direction of the tower unit 10 may be perpendicular to the other fixed platforms such as the bearing platform.

In the present disclosure, the jacking mechanism is used for jacking the inner tower unit 10 of two adjacent tower units 10.

In the process of the implementation, when the wind power tower barrel 1A is installed and constructed, the jacking mechanisms between the two adjacent tower drum units 10 work to jack the inner side of the two, and in the same way, in the axis direction of the wind power tower barrel 1A, the tower drum units 10 finally rise to the designed elevation under the work of the jacking mechanisms. It should be noted that, at the beginning of the construction, the lowest, i.e., outermost tower unit 10 may be conveniently fixed to a bearing platform or other fixed platform, and the highest, i.e., innermost tower unit 10 is finally used for supporting the wind turbine nacelle 21.

It should be noted that, in other embodiments, the jacking mechanisms may also be used to jack the outer tower unit 10 of two adjacent tower units 10, and under this limitation, the innermost tower unit 10 is used to connect with a bearing platform or other fixed platform, and the outermost tower unit 10 is lifted to the highest position by the multiple jacking mechanisms to support the nacelle 21.

Referring to FIGS. 4A and 4B, FIGS. 4A and 4B show cross-sectional views of two adjacent tower units 10, respectively, to illustrate the position limiting structure 11.

In the present disclosure, a limiting structure 11 is configured between two adjacent tower units 10, and is used for restricting the two adjacent tower units 10 from sliding relatively along the axial direction of the wind power tower 1A.

In the implementation process, the limiting structure 11 can restrict the relative position of two adjacent tower units 10, for example, in combination with the limitation of the jacking position of the jacking mechanism, the tower unit 10 on the inner side moves precisely along a specified direction (i.e., the axial direction of the wind power tower 1A) under the action of the jacking mechanism; during actual construction, the limiting structure 11 can ensure the installation verticality of the wind power tower barrel 1A, so that the wind power tower barrel 1A can be smoothly constructed.

In the present disclosure, the limiting structure 11 includes a slot 12 and a latch 13. The locking groove 12 is disposed on one of the two adjacent tower units 10, and the locking block 13 is disposed on the other of the two adjacent tower units 10. The clamping block 13 is slidably embedded in the clamping groove 12 along the axial direction of the wind power tower 1A.

In the implementation process, when the jacking mechanism works, the tower drum unit 10 on the inner side can accurately move along the axis direction of the wind power tower drum 1A under the limitation of the fixture block 13 and the clamping groove 12, so that the occurrence of offset is avoided, and the mounting verticality of the wind power tower drum 1A is controlled; it should be noted that, in one aspect, the locking slot 12 is disposed on the inner wall of the tower unit 10 (as shown in fig. 4A), and the locking block 13 is disposed on the outer wall of the tower unit 10; alternatively, the locking groove 12 is formed on the outer wall of the inner unit, and the locking block 13 is formed on the inner wall of the outer tower unit 10. Meanwhile, it should be noted that the limiting structure 11 includes, but is not limited to, a structural form of the slot 12 and the fixture block 13, so as to restrict the two adjacent tower units 10 to slide only along the axial direction of the wind power tower 1A; meanwhile, it should be noted that the number of the limiting structures 11 is not limited, and may be one, two, three, or four. It should be noted that the clamping groove 12 may be a high-strength shear alloy steel clamping groove structure, and the clamping block 13 may be a block structure of high-strength shear alloy steel.

In this disclosure, the jacking mechanism includes a hydraulic jack.

In the above implementation process, in two adjacent tower drum units 10, the hydraulic jack is fixed on the inner wall of the tower drum unit 10 on the outer side, and the lifting execution end of the hydraulic jack abuts against the tower drum unit 10 on the inner side, so as to lift the tower drum unit 10 on the inner side. It should be noted that, in other specific embodiments, the jacking mechanism may also be an air pressure jacking device or other jacking devices, so as to achieve the jacking effect on the tower unit 10. Meanwhile, the number and specification types of the hydraulic jacks, the air pressure jacking equipment or other jacking equipment are selected according to the specification and weight of the fan, and the actual requirements are met.

It should be noted that, in an alternative embodiment, the jacking mechanism may be disposed at or near the limiting structure 11, subject to actual requirements. The general position of the jacking mechanism is exemplarily indicated by reference "a" in fig. 4A.

Referring to FIG. 5, FIG. 5 is a schematic internal view of a plurality of tower units 10 of this embodiment after being lifted.

In the present disclosure, the innermost tower unit 10 is provided with a basket mounting structure 14.

The wind tower 1A further comprises a basket device 15, the basket device 15 being mounted to the basket mounting structure 14.

It should be noted that the above design is based on that after all the tower units 10 are lifted, the topmost tower unit 10 is the innermost tower unit 10; in other embodiments, the basket mounting structure 14 may also be provided on the outermost tower unit 10 when the topmost tower unit 10 is the outermost tower unit 10 after all tower units 10 have been jacked up.

In the implementation process, during installation and construction of the wind power tower 1A, after each tower unit 10 is jacked, a constructor moves to a position near the jacked tower unit 10 by using the hanging basket equipment 15, and two tower units 10 at the position where relative displacement occurs are welded or installed through high-strength bolts. It should be noted that after each section of tower drum unit 10 is jacked under the action of the jacking mechanism, a constructor needs to perform a fixing procedure on two tower drum units 10 at the position where the tower drum units are relatively displaced, so that the jacked tower drum units 10 are prevented from falling back, firm connection between the tower drum units 10 is ensured, and the structural stability of the wind power tower drum 1A is ensured, thereby ensuring normal operation of the wind turbine; it should be noted that, the basket device 15 may be configured with a plurality of strands of reinforcing steel bar ropes to improve the safety factor of the basket device 15; meanwhile, in this embodiment, the hanging basket device 15 is used to move the constructor to the construction position, and in other specific embodiments, other devices capable of moving the constructor may be used to move the constructor to the construction position.

It should be noted that in fig. 5, the wire rope 16 of the basket device 15, the safety lock 17, the hoist 18, the electric control system 19, and the basket body 20 for carrying the worker are exemplarily indicated.

Referring to fig. 6, fig. 6 is a schematic view of the basket mounting structure 14 in this embodiment.

The basket mounting structure 14 comprises an i-steel mast 14a, the i-steel mast 14a being welded to the top end of the innermost tower unit 10.

The i-steel derrick 14a comprises four channel steel cross beams 14B, the four channel steel cross beams 14B are connected in a shape like a Chinese character 'jing', and in order to guarantee stability of the i-steel derrick 14a, when the engine room 21 is connected with the wind power tower 1A, four crossing positions (as indicated by a position B in a figure 6) of the i-steel derrick 14a are also welded with the engine room 21. It should be noted that the i-steel derrick 14a may also be provided with a steel ladder 14 c.

It should be noted that the basket mounting structure 14 may be other structures, so as to be capable of being used for mounting the basket device 15.

It should be noted that, in the present disclosure, the innermost tower unit 10 is longer than the remaining tower units 10.

In the implementation process, since the length of the innermost tower unit 10 is the longest, when the jacking mechanism is not in operation, the innermost tower unit 10 is exposed to the remaining tower units 10 alone, which is convenient for installation of the wind turbine nacelle 21.

It should be noted that a settlement sensing device (not shown) is disposed between two adjacent tower units 10, and is used for sensing the lifting between two adjacent tower units 10. Through subsiding induction system, can real-time recording tower drum unit 10 by the position of jacking, make things convenient for tower drum unit 10 by the jacking time and later stage to tower drum unit 10 settlement's monitoring, guarantee the normal work of fan.

Referring to fig. 7, fig. 7 is a schematic view of the blower in the present embodiment. The wind turbine comprises a nacelle 21, blades 22 and the wind tower 1A described above. The nacelle 21 is connected to the innermost tower unit 10, and the fan blades 22 are provided on the nacelle 21.

In the implementation process, the nacelle 21 is located at the top of the wind power tower 1A and assembled with the fan blades 22, and the wind power is applied to generate power, it should be noted that in the actual construction of the wind turbine, the nacelle 21 can be fixed on the innermost tower unit 10, and when the tower unit 10 rises to the designed elevation under the action of the jacking mechanism, the fan blades 22 are hoisted again to reduce the workload of the jacking mechanism and ensure that the tower unit 10 smoothly rises to the designed elevation.

It should be noted that the nacelle 21, the blades, and the equipment in the nacelle 21 together form a wind turbine generator system, and the wind turbine generator system is supported by the wind tower 1A and is located at a high altitude, and generates power under the action of wind force.

Referring to fig. 8, 9A and 9B, fig. 8 is a flowchart illustrating a method of constructing a wind turbine according to the present embodiment. Fig. 9A and 9B together show a working process schematic diagram of the fan construction.

The wind turbine construction method applies the wind power tower barrel 1A described above, and comprises the following steps:

assembling the tower drum units 10, and sequentially sleeving a plurality of tower drum units 10;

installing the first tower unit 10, and installing the tower unit 10 at the first section on a bearing platform;

hoisting the engine room 21, and hoisting the fan engine room 21 on the tower drum unit 10 at the tail section;

jacking and fixing the tower drum units 10, jacking the corresponding tower drum unit 10 through a jacking mechanism according to a set sequence, and fixing two adjacent tower drum units 10 which slide relatively;

installing fan blades 22, and hoisting the fan blades 22 to the engine room 21 after the wind power tower barrel 1A is jacked to a designed elevation;

and (5) electric installation and fan debugging.

In the implementation described above, the wind tower 1A illustratively includes four tower units 10, the tower unit 10 in the first segment is the first tower unit 10a (the first segment is defined as the tower unit 10 in the lowest segment when all the tower units 10 are lifted, for example, when the lifting position of the lifting mechanism is defined as the inner tower unit 10, the outermost tower unit 10 is the tower unit 10 in the first segment, i.e., the first tower unit 10a), the tower unit 10 in the last segment is the fourth tower unit 10d (the last segment is defined as the tower unit 10 in the uppermost segment when all the tower units 10 are lifted, for example, when the lifting position of the lifting mechanism is defined as the inner tower unit 10, the innermost tower unit 10 is the last tower unit 10, i.e., the fourth tower unit segment 10 d); the mode of 'sesame blossom and node height' is adopted for installation and construction:

after the four-section tower unit 10 is assembled and transported to a construction site, the crane equipment hoists the first section tower unit 10a and fixes the first section tower unit on the concrete bearing platform 23, and then hoists the fan nacelle 21 (hub) to the fourth section tower unit 10d, and at the moment, the crane equipment can leave; the tower units 10 are then lifted and two adjacent tower units 10 are fixed simultaneously in a set sequence, wherein the set sequence may include the following two cases:

in the first case (which may be defined as lifting from bottom to top), the second tower unit 10b is lifted to the designed height by a lifting mechanism located between the first tower unit and the second tower unit 10b, the first tower unit 10a and the second tower unit 10b are welded or connected by bolts by the constructor, the third tower unit 10c is lifted to the designed height by a lifting mechanism located between the second tower unit and the third tower unit 10c, the constructor welds or connects the second tower unit 10b and the third tower unit 10c by bolts, the fourth tower unit 10d is lifted to the designed height by a lifting mechanism located between the third tower unit and the fourth tower unit 10d, the constructor welds or connects the third tower unit 10c and the fourth tower unit 10d by bolts, it should be noted that in this case, a resisting structure is required to prevent the tower unit 10 from falling back, for example, when lifting the second tower unit 10b, the fall back of the third tower unit 10 and the fourth tower unit 10 is considered, the solution includes, but is not limited to, providing a steel corbel between the second tower unit 10b and the third tower unit 10c, providing a steel corbel between the third tower unit 10c and the fourth tower unit 10d, the steel corbel being configured to abut against the third tower unit 10c and the fourth tower unit 10d, or, the bottom end of the slot 12 of the second tower unit 10b is closed, the bottom end of the slot 12 abuts against the fixture block 13 of the third tower unit 10c, and similarly, the bottom end of the slot 12 of the third tower unit 10c is closed, and the bottom end of the slot 12 abuts against the fixture block 13 of the fourth tower unit 10 d.

In a second case (which may be referred to as top-down jacking), the fourth tower unit 10d is jacked up to the designed height by using a jacking mechanism located between the third and fourth tower units 10d, the third tower unit 10c is welded or bolted to the fourth tower unit 10d by a constructor, the third tower unit 10c is jacked up to the designed height by using a jacking mechanism located between the second and third tower units 10c, the second tower unit 10b is welded or bolted to the third tower unit 10c by a constructor, the second tower unit 10b is jacked up to the designed height by using a jacking mechanism located between the first and second tower units 10b, the first tower unit 10a is welded or bolted to the second tower unit 10b by a constructor, in this case, the tower unit 10 above is lifted and fixed first, and the falling back of the tower unit 10 can be effectively avoided.

The whole wind power tower barrel 1A reaches the design elevation; then, the crane equipment can enter the field, and the fan blades 22 are hoisted to the fan nacelle 21, so as to complete installation of the fan blades 22 (it should be noted that, in one case, the fan blades 22 can be installed after the third tower unit 10c is jacked up); and finally, the constructor carries out the electrical installation and debugging tasks of the fan to complete the construction. By the construction method, the installation precision of the fan is improved, the utilization rate of crane equipment is reduced, and the problems of poor hoisting environment, extremely high requirement on the crane equipment, and high cost in the prior art are solved; meanwhile, the utilization rate of crane equipment is reduced, so that the problems that the conventional wind power construction crane is frequent in assembly times, time and labor are consumed in hoisting and assembling, and the project construction period is restricted are solved, and the problems that the effective utilization time and the use efficiency of project machinery are greatly influenced and the project construction cost and the economic benefit are influenced in the conventional construction are also solved; meanwhile, the crane equipment only hoists the first section of tower drum unit 10a, the engine room 21 and the fan blades 22, so that the performance requirement on the crane equipment is greatly reduced, the hoisting height is lower, the crane can exert the hoisting performance of the crane, a large truck crane can be directly adopted for hoisting, the cost is saved, meanwhile, the requirement of the crane equipment on the site is reduced, and the hoisting risk is also reduced.

It should be noted that the nacelle 21 may be installed prior to the hoisting of the first tower unit 10a, which may reduce the number of crane equipment used. It should be noted that the tower unit 10 at the end is provided with a gondola device 15.

Meanwhile, it should be noted that, when the nacelle 21 is designed, the center of gravity of the nacelle 21 and the center of gravity of the hub are reasonably distributed, so that the center of gravity of the nacelle 21 and the center of gravity of the hub are located at the center of the wind power tower 1A, and jacking is facilitated.

In the step of lifting and fixing the tower units 10, a worker fixes two adjacent tower units 10, which are slid relative to each other, by means of the basket device 15.

In the implementation process, a constructor uses the hanging basket device 15 to quickly move to the position near the jacked tower unit 10, and the two tower units 10 which are in relative displacement are welded or installed through high-strength bolts. Meanwhile, it should be noted that, a settlement sensing device is configured between two adjacent tower drum units 10, and through the settlement sensing device, the position of the tower drum unit 10 which is jacked can be recorded in real time, so that the tower drum unit 10 can be jacked conveniently and the settlement of the tower drum unit 10 can be monitored in the later period, and the normal work of the fan is ensured.

It should be noted that, during construction, the blower can be used to circulate air in the wind power tower barrel 1A, so as to avoid oxygen deficiency in the enclosed space and to take safety precaution measures for the construction of the enclosed space.

It should be noted that the first tower unit section 10a may further be provided with an access door opening 24 for allowing an access person to enter the interior of the wind power tower 1A.

It should be noted that, the above-described fan construction method may have the following advantages:

1. the requirement on the performance of crane equipment is greatly reduced, the hoisting height is lower, the crane can exert the hoisting performance of the crane, a large truck crane can be directly adopted for hoisting, and the cost is saved.

2. More selection spaces of the crane equipment can greatly reduce the occupied area, reduce filling, have less influence on the ecological environment, and the hydraulic jack has strong jacking capacity, safety and reliability.

3. The hoisting is only needed to be carried out when the first tower drum unit 10a and the fan blades 22 (the fan blades are generally dozens of tons, and the hoisting difficulty is low) are hoisted, so that the service time of the crane is reduced, and the construction cost is greatly saved.

4. The tower unit 10 is manufactured in a factory and the product quality is easily controlled. The clamping groove 12 of the tower unit 10 at the lower section can restrain the position of the tower unit 10 at the upper section, so that the installation verticality of the fan is controlled.

5. The construction speed is high, and the construction process is simple to operate. Multiple fans can be constructed simultaneously, and dependence on hoisting machinery is reduced. A plurality of teams and groups can be organized for simultaneous construction, the wind power hoisting construction progress is greatly accelerated, and project fulfillment is facilitated.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A wind tower, comprising:

the wind power tower comprises a plurality of tower drum units, a plurality of wind power tower units and a plurality of wind power tower units, wherein the tower drum units are sequentially sleeved from inside to outside, and two adjacent tower drum units can relatively slide along the axial direction of the wind power tower; and

the jacking mechanisms are arranged between every two adjacent tower drum units and used for jacking one of the two adjacent tower drum units.

2. The wind tower as claimed in claim 1,

the jacking mechanism is used for jacking the tower drum unit at the inner side of the two adjacent tower drum units.

3. The wind tower as claimed in claim 1,

and a limiting structure is configured between every two adjacent tower drum units and used for restricting the two adjacent tower drum units from sliding relatively along the axis direction of the wind power tower drum.

4. The wind tower as claimed in claim 3,

the limiting structure comprises a clamping groove and a clamping block, the clamping groove is arranged on one of the two adjacent tower drum units, and the clamping block is arranged on the other of the two adjacent tower drum units;

the clamping block is slidably embedded in the clamping groove along the axis direction of the wind power tower cylinder.

5. The wind tower as claimed in claim 1,

the jacking mechanism comprises a hydraulic jack.

6. The wind tower as claimed in claim 2,

the innermost tower drum unit is provided with a hanging basket mounting structure;

the wind power tower cylinder further comprises hanging basket equipment, and the hanging basket equipment is installed on the hanging basket installation structure.

7. The wind tower as claimed in any one of claims 1 to 6,

and a settlement sensing device is arranged between every two adjacent tower drum units and used for sensing the lifting between every two adjacent tower drum units.

8. A fan, comprising:

a nacelle;

a fan blade; and

the wind tower as claimed in any one of claims 1-7;

the nacelle is connected with the tower unit located at the innermost side, and the fan blades are arranged on the nacelle.

9. A wind turbine construction method, characterized in that a wind tower as claimed in claim 1 is applied, said method comprising the steps of:

assembling tower drum units, and sequentially sleeving the tower drum units;

mounting a first section of tower drum unit, and mounting the tower drum unit at the first section on a bearing platform;

hoisting the engine room, and hoisting the fan engine room on the tower drum unit at the tail section;

jacking and fixing tower drum units, jacking the corresponding tower drum units through the jacking mechanism according to a set sequence, and fixing two adjacent tower drum units which slide relatively;

installing fan blades, and hoisting the fan blades to the engine room after the wind power tower cylinder is jacked to a designed elevation;

and (5) electric installation and fan debugging.

10. The wind turbine construction method according to claim 9,

the tower drum unit at the tail section is provided with a hanging basket device;

in the step of jacking and fixing the tower drum units, a constructor fixes two adjacent tower drum units which slide relatively through the hanging basket equipment.

Images