WO2023082748A1 - Apparatus and method for vertically lifting and installing variable-diameter unbalanced-load device - Google Patents

Abstract

An apparatus for vertically lifting and installing a variable-diameter unbalanced-load device, the apparatus comprising: a track (10) and a track-type transport device (20) mounted on the track (10); and further comprising: a lifting frame (30), comprising a plurality of support columns (31) and, connected at the upper portions of the support columns, a mounting rod (32), wherein the lifting frame (30) is disposed transversely above the track (10); and further comprising: a plurality of groups of lifting centralized-control apparatuses (40) mounted at different orientations on the outer side of the lifting frame (30), wherein the lifting centralized-control apparatuses (40) are used, after the track-type transport device (20) transports a variable-diameter unbalanced-load device into the lifting frame (30), for stably lifting the variable-diameter unbalanced-load device to a mounting position. Additionally disclosed is a method for vertically lifting and installing a variable-diameter unbalanced-load device. The apparatus and the method are highly versatile, reduce installation difficulty, are successful at reducing risks such as severe weather, have a high safety coefficient, can adapt to the requirements of complex lifting working conditions such as variable-diameter tower sections and unbalanced loads, occupy a small amount of space, involve little auxiliary installation work, and are relatively economical in installation.

Description

A device and method for vertical lifting and installation of variable-diameter unbalanced load equipment technical field

The invention relates to the technical field of engineering construction, in particular to a device and method for vertically lifting and installing variable-diameter unbalanced load equipment.

Background technique

The installation of high-tower-type equipment such as power generation fans has always been a difficult problem in equipment installation. In the past, large-scale crawler cranes were used for installation, which required the cooperation of large crawler cranes and other small and medium-sized hoisting equipment. The installation efficiency was low and the economy was also poor. With the continuous development of wind turbine technology, the wind turbine tower is getting higher and higher, blindly adopting larger crawler cranes, it will become more and more difficult to increase the lifting height and lifting capacity of crawler cranes, and the economy will become worse and worse. Based on the above reasons, there is a need for an installation or removal device and method with higher efficiency, better economy and greater versatility.

However, the installation of fans and other equipment in the lifting method has two prominent difficulties: on the one hand, the fan tower is a variable-diameter tower, generally with a thin upper and thicker structure, which is not convenient for the arrangement of lifting equipment; on the other hand, the upper part of the fan Machine rooms, generators, blades and other equipment cannot achieve complete equal moment balance at the front and rear, which will bring the risk of unbalanced load during the lifting process. This is a key problem that must be solved when the wind turbine is installed using the vertical lifting method. This patent solves the above problems well through innovative and reasonable design.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a vertical lifting and installation device for variable-diameter unbalanced load-type equipment to solve the above-mentioned problems.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a vertical lifting installation device for variable-diameter unbalanced load equipment, which includes a track and a track-type transfer device installed on the track; a lifting frame, and the lifting frame is The truss structure includes a plurality of pillars and installation rods connected to the upper part of the pillars, the lifting frame spans above the track; it also includes multiple groups of lifting centralized control devices installed in different directions on the outside of the lifting frame, the The lifting centralized control device is used to smoothly lift the variable-diameter unbalanced load equipment to the installation station after the track-type transfer device transfers the variable-diameter unbalanced load equipment to the lifting frame.

In a preferred solution, the track-type transfer device includes a transfer frame, the bottom of the transfer frame is equipped with rollers adapted to the track, and the top is provided with a plurality of support cylinders for fixing variable-diameter unbalanced load equipment. The piston rod of the supporting oil cylinder is connected with the support tile, and the transfer frame is provided with a transfer frame hydraulic station and a transfer frame electric control box, and the transfer frame hydraulic station is electrically connected with the transfer frame; it also includes a rail clamp.

In a preferred solution, each group of the lifting centralized control devices includes three continuous stretching hydraulic hoists, a lifting hydraulic station that provides power for the three continuous stretching hydraulic hoists, and a lifting electric station that controls the lifting hydraulic station. In the control box, a plurality of fixed pulleys are arranged on the installation rod, and the fixed pulleys are used for the steel strand group of the continuous stretching hydraulic hoist to pass through and lift the variable-diameter unbalanced load equipment.

In a preferred solution, the continuous stretching hydraulic hoist includes a support base and a continuous stretching hydraulic jack hinged on the support base, and a steel strand group reel arranged behind the continuous stretching hydraulic jack , the continuous stretching hydraulic jack is connected to the lifting hydraulic station, and the motor of the steel strand group reel is connected to the lifting electric control box; in each group of lifting centralized control devices, one of the continuous stretching hydraulic hoist The wind rope is connected, and the other two continuous stretching hydraulic hoists are connected to the steel strand group, and the steel strand group of each continuous stretching hydraulic jack is connected to the anchor assembly.

In a preferred solution, the lifting frame includes three or four uprights, and the uprights are installed on both sides of the track, and the height of the installation rod is greater than the height of the rail-type transfer device; the installation rod is circular, A plurality of said fixed pulleys are equiangularly distributed on said installation rod.

In a preferred solution, the anchor assembly includes two groups of anchors sequentially connected to the steel strand group; the anchor includes a cylindrical shell, and also includes multiple groups of anchor seats that are evenly distributed in the shell. It is fixedly connected with the shell, and each group of anchor seats is equipped with anchor pieces and locking pieces; the connection method between the steel strand group and the anchor assembly is: after all steel strands pass through the anchor at the front end, any Two adjacent steel strands are respectively locked on different anchors.

The present invention also provides a method for vertically lifting and installing variable-diameter unbalanced load-type equipment, including the following steps:

S1 Auxiliary work before lifting: including foundation construction, fan base section installation, lifting frame installation, lifting centralized control device installation and commissioning;

S2 Wind turbine lifting assembly: Install lifting points at equal angles in the circumferential direction of each tower section of the wind turbine tower, and assemble the third tower section, the second tower section, the first tower section and the upper part of the first tower section of the wind tower. The fan machine room, generator and blades, so that the steel strand group of one of the continuous stretching hydraulic hoists in each group of hoisting centralized control devices is connected to the third tower section, so that the other one of each group of hoisting centralized control devices is connected continuously The steel strand group of the stretching hydraulic hoist is connected to the second tower section, so that the wind rope of the last continuous stretching hydraulic hoist in each group of lifting centralized control device is connected to the first tower section, and the lifting centralized control device is started Lift the installed equipment as a whole over one tower section height, so that the new tower section can be placed and installed. The connection method between the steel strand group and the tower section is: after all the steel strands pass through the anchor at the front end, any Two adjacent steel strands are respectively locked on different anchors;

S3 new tower section transfer in place: According to the number of groups of transfer frames selected, one tower section is hoisted for each transfer frame, and the support oil cylinders are respectively activated to make the support tiles push the tower sections tightly, and the tower sections are transported in sequence according to the assembly sequence Go to the lifting frame and go to the next step;

S4 Connection and lifting of new tower section: loosen the connection of the steel strand group connected to the second tower section with the hoisting point of the second tower section, and install it on the hoisting point of the new tower section. After all the groups are evenly stressed, loosen the support of the supporting tiles and the tower section, slowly lift the new tower section and connect the top of the new tower section with the bottom of the third tower section; After steadily raising the height of one tower section with the equipment as a whole, move the transfer frame with another tower section to the bottom of the installed tower section, lock the rail clamp and the track, and repeat the above operations to complete the connection of the fan tower;

S5 wind turbine is connected to the foundation section: After the tower section connected to the foundation section is connected to other tower sections of the fan tower, after the installed wind turbine is raised by one tower section height, the tower section transfer frame is moved out of the lifting frame, and then, linkage Control the lifting centralized control device, slowly lower the installed tower section of the fan and the overall equipment, and connect the entire fan tower with the foundation section;

S6: Fan confirmatory debugging: carry out debugging of each component and equipment of the fan;

S7: Auxiliary device removal: Remove the lifting frame, lifting centralized control device and transfer frame, and the installation is complete.

In the preferred solution, S2 is hoisted by a mobile crane, which specifically includes the following steps:

S2-1 Use the mobile crane to hoist the third tower section to the foundation section, and connect the steel strand group of one of the continuous stretching hydraulic hoists in each group of lifting centralized control devices to the third tower section, and connect the third tower section The three-tower section adjusts the vertical and tightens the force of the steel strand group;

S2-2 Enable the mobile crane to hoist the second tower section above the third tower section, connect and fix the second tower section and the third tower section coaxially, and continuously stretch the other one of each group of lifting centralized control devices The steel strand group of the type hydraulic hoist is connected to the second tower section;

S2-3 Use the mobile crane to hoist the first tower section above the second tower section, connect and fix the first tower section and the second tower section coaxially, and continuously stretch the last one of each group of lifting centralized control devices The wind rope of the type hydraulic hoist is connected to the first tower section.

In a preferred solution, S2 is carried out by hoisting using the installation device of the present invention, which specifically includes the following steps:

S2-1 first uses the transfer frame to transfer the second tower section to the installation position in the lifting frame, drives a continuous stretching hydraulic hoist in each group of lifting centralized control device, and connects its anchors with the hoisting The lifting points are connected, tightened, and then the second tower section is lifted to exceed the clear height of the first tower section;

S2-2 uses the transfer frame to transfer the third tower section to the installation position in the lifting frame, drives another continuous stretching hydraulic hoist in each group of lifting centralized control device, and connects its anchors with the tower section respectively. Lift the lifting point to connect and tighten, slowly lift the third tower section to the position where it fits with the second tower section, and fasten the second tower section to the third tower section;

S2-3 Then use the crane to hoist the first tower section above the second tower section, connect and fasten the first tower section and the second tower section under the condition that the crane does not loosen the hook, and then place each group of lifting centralized control device The wind rope of the last continuous stretching hydraulic hoist is connected and tightened to the first tower section;

S2-4 Carry out the hoisting and adjustment of the fan machine room, generator and blades in the overall vertically stable state, and lock the rotatable or movable parts after the installation is completed.

In the preferred solution, after S2 is completed, that is, after the main functional components of the fan are installed, the functional debugging is carried out first, and after the debugging is passed, the subsequent tower sections are lifted and connected.

Compared with the prior art, the present invention has the following beneficial effects:

1. The installation is economical. The device and method avoid the purchase of expensive large-scale crawler cranes, and the required installation equipment is general equipment, and the installation is economical. It has more advantages in the installation of the taller and heavier fan or tower equipment.

2. Occupies less space and less auxiliary work for installation. The large crawler crane hoisting method requires a large space for the installation and hoisting of the crawler crane, especially for the assembly of the boom of the large crawler crane, and the turning over of the tower section and the unloading of the truck by other cranes. Due to the small hoisting weight of all components, the device and method can be completed only by ordinary wheeled cranes, and do not require a large-scale crawler crane boom assembly site. The multi-transfer frame can store part of the fan tower sections while installing, further reducing The requirements for the site are greatly reduced, and auxiliary work such as the installation of large crawler cranes and the assembly of booms are greatly reduced; it has great advantages for the installation of wind turbines in mountainous areas, and the cost input and construction period of the site are greatly reduced.

3. It can adapt to the requirements of complex lifting conditions such as variable-diameter tower sections and unbalanced loads. Because the diameter of each fan tower is different, this patent adopts the lifting steel strand to connect the lifting point to avoid the influence of the diameter change of the tower section, and the diameter change will only cause a slight change in the angle between the steel strand and the lifting point , because the hydraulic steel strand lifting equipment has a large lifting capacity margin, which can solve this problem well. For the problem that the upper machine room, generator, blade and other equipment of the fan cannot achieve complete equal moment balance at the front and rear parts, which brings the risk of unbalanced load during the lifting process, this patent adopts the multi-anchor vertical three-dimensional lifting method of the steel strand of the lifting cylinder on the one hand. The method strengthens the stability and dynamic adjustment ability of the lifting process. On the other hand, by setting up a group of multi-point wind-covering hydraulic steel strands, the overall verticality of the tower section can be automatically or manually adjusted at any time, which effectively overcomes the interference of eccentric loads. .

4. The installation and preparation can be operated in parallel, and the installation efficiency is high. The device and method can complete the installation and tower section transfer preparation synchronously and in parallel, shorten the preparation time to a great extent, ensure the continuity of installation, and shorten the total installation time.

5. Strong ability to resist bad weather and other risks, and large safety factor. Due to the high-altitude operation of the original ultra-large crawler crane hoisting method, the crawler crane driver's vision is limited and it is inconvenient to observe. In severe weather conditions such as sudden strong winds, it is easy to lose stability and cause safety accidents and risks. Compared with the large-scale crawler crane installation method, this device and method has a large margin of lifting capacity of the hydraulic steel strand, strong deviation correction and adjustment capabilities, and good synchronization of the hydraulic lifting device, which can reach millimeter level, and all dimensions of the lifting process are within a certain range. In the state of adjustment and control, in case of sudden strong winds, the steel strands can be quickly locked and tightened, with strong anti-risk ability and greatly improved safety, avoiding the slow and easy drop of the hook when the large crawler crane is hoisted in high winds. The overturning problem.

6. Reduce the difficulty of debugging and improve the efficiency of debugging. The device and method of this patent divides the debugging into preliminary debugging and confirmatory debugging. The preliminary debugging is completed when the fan is at a lower installation height, which facilitates the handling of faults and improves the debugging efficiency; the confirmatory debugging is completed after the fan is lifted. Before the fan is put into operation, only the final inspection and confirmation are carried out, and it can be put into normal operation after being correct, which greatly improves the quality of debugging, increases safety, and advances the construction period.

7. The equipment is highly versatile. The core equipment of this patent, the lifting frame and the centralized lifting control device, are easy to transfer, highly versatile, and easy to maintain. They can be used not only in the installation of wind turbines and other tower equipment, but also in other engineering fields. Widely used, high utilization rate and good economy; unlike the original installation method, the super-large crawler crane has poor versatility. If it is used in the occasion of small lifting capacity, because it is difficult to install, dismantle and transfer, the gain outweighs the gain. Therefore, the utilization rate of ultra-large crawler cranes is very low, the maintenance cost is generally high, and the economy is often poor.

Description of drawings

Fig. 1 is a schematic structural view of the transport rack in the present invention.

Fig. 2 is a structural schematic diagram of the lifting frame in the present invention.

Fig. 3 is a schematic diagram of an installation state of S2 in the method of the present invention.

Fig. 4 is a schematic diagram of another installation state of S2 in the method of the present invention.

Fig. 5 is a schematic diagram of another installation state of S2 in the method of the present invention.

Fig. 6 is a schematic diagram of an installation state of S3 in the method of the present invention.

Fig. 7 is a schematic diagram of another installation state of S3 in the method of the present invention

Fig. 8 is a schematic diagram of the connection state of the steel strand group and the tower section in the present invention.

Fig. 9 is a schematic structural view of the lifting centralized control device in the present invention.

Fig. 10 is a schematic structural view of the anchor in the present invention.

Fig. 11 is a schematic structural view of the rail clamp in the present invention.

In the above drawings: 10, track; 20, track-type transfer device; 21, transfer frame; 22, roller; 23, support cylinder; 24, support tile; 25, transfer frame hydraulic station; 26, transfer frame electric control box; 27. Rail clamp; 30. Lifting frame; 31. Pillar; 32. Installation rod; 33. Fixed pulley; 40. Lifting centralized control device; 41. Continuous stretching hydraulic hoist; Stretching hydraulic jack; 413, steel strand group reel; 42, lifting hydraulic station; 43, lifting electric control box; 44, wind rope; 45, steel strand group; 50, anchor; 51, shell ; 52, anchor seat; 53, anchor sheet; 54, locking sheet.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the preferred embodiments of the present invention will be described below in conjunction with specific examples, but it should be understood that the accompanying drawings are for illustrative purposes only, and cannot be interpreted as an explanation of this patent. Restrictions; In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, some known structures and their descriptions in the drawings may The omission is understandable; the positional relationship described in the drawings is only for illustrative purposes, and should not be construed as a limitation on this patent.

As an embodiment of the present invention, referring to accompanying drawing 1 and accompanying drawing 2, provide a kind of variable-diameter unbalanced load type equipment vertical lifting installation device, it comprises that it comprises track 10 and is installed on the track type transfer device on track 10 20; a lifting frame 30, the lifting frame 30 is a truss structure, including three pillars 31 and a mounting rod 32 connected to the upper part of the pillars 31, the lifting frame 30 spans above the track 10; There are multiple sets of lifting centralized control devices 40 on different positions outside the lifting frame 30. The lifting centralized control devices 40 are used to transfer the variable-diameter unbalanced load equipment to the lifting frame 30 after the rail-type transfer device 20 transfers the variable-diameter Unbalanced load equipment is smoothly lifted to the installation station. Wherein, each group of the lifting centralized control device 40 includes three continuous stretching hydraulic hoists 41, and a lifting hydraulic station 42 that provides power for the three continuous stretching hydraulic lifting machines 41, and a control lift hydraulic station 42. Elevate the electric control box 43, and a plurality of fixed pulleys 33 are arranged on the installation rod 32, and the fixed pulleys 33 are used for the steel strand group of the continuous stretching hydraulic hoist 41 to pass through and lift the variable-diameter unbalanced load class Equipment, in the present embodiment, column 31 is installed on both sides of track 10, and the height of mounting rod 32 is greater than the height of track-type transfer device 20; The pulleys 33 are evenly distributed on the installation rod 32 at equal angles; the fixed pulley 33 is preferably in an angle-adjustable form, so as to adapt to the angle change of the steel strand.

The number and structural form of the hoisting frame pillars are matched with each other according to the comprehensive consideration of the overall weight of the hoisting fan, the design of the foundation geology and the bearing capacity of the embedded parts, and the capacity of the hoisting centralized control device. In order to ensure the passage of the transfer frame, the lower part of the lifting frame is at least slightly higher than the height of a tower section, and there are no horizontal braces or diagonal braces that affect the passage of the transfer frame in the direction of travel. The lifting frame structure is preferably connected by pins and bolts, which is convenient for installation, disassembly and reuse. Walkways, ladders and operating platforms are arranged on the structure of the lifting frame as required to ensure safe and convenient operation; the lifting frame is reliably installed on a solid foundation through the pre-buried foundation. The hoisting frame, hoisting centralized control device, track, and foundation section are preferably jointly arranged and constructed so as to form an overall force bearing and simplify the structure.

In this embodiment, the track-type transfer device 20 includes a transfer frame 21, the bottom of the transfer frame 21 is equipped with rollers 22 adapted to the track 10, and a plurality of rollers 22 for fixing variable-diameter unbalanced load equipment are arranged on the top. A support cylinder 23, the piston rod of the support cylinder 23 is connected with a support tile 24, a transfer frame hydraulic station 25 and a transfer frame electric control box 26 are arranged on the transfer frame 21, and the transfer frame hydraulic station 25 is connected with the transfer frame electric control box. 26 electrical connection; it also includes a rail clamp 27. When it is transferred to a predetermined position, in order to facilitate the hoisting operation, the rail clamp 27 is firmly locked with the track 10 at this time to prevent the displacement of the rail-type transfer device 20 and bring potential safety hazards. The specific structure of the rail clamp 27 is referring to accompanying drawing 11.

In this embodiment, referring to accompanying drawing 9, the continuous stretching hydraulic hoist 41 includes a support base 411 and a continuous stretching hydraulic jack 412 hinged on the support base 411, and is arranged on the continuous stretching hydraulic jack 412. The steel strand group reel 413 at the rear of the jack 412, the continuous stretching hydraulic jack 412 is connected with the lifting hydraulic station 42, and the motor of the steel strand group reel 413 is connected with the lifting electric control box 43; each group of lifting In the centralized control device, one of the continuous stretching hydraulic hoists is connected to the wind rope 44, and the other two continuous stretching hydraulic hoists are connected to the steel strand group 45, and the steel strands of each continuous stretching hydraulic jack Connect the anchor components on the group.

During implementation, a lifting centralized control device may be provided at each leg of the lifting frame, or a lifting centralized control device may be provided for several legs. Regardless of whether the hoisting centralized control device is installed separately or jointly, the hoisting electric control cabinet and the hoisting hydraulic station, as the driving control device of the hoisting centralized control device, can be selected separately or jointly. Connection, so as to carry out the linkage control during the lifting or lowering process of the fan tower section. Standardized container or frame structure is preferred to improve versatility and facilitate layout and transshipment. The container or the frame can be a one-layer or multi-layer structure, which is reliably connected to the preset ground anchor point or the connection point of the lifting frame to withstand the tension during the wind turbine lifting process. The lifting centralized control device can choose steel strands or steel wire ropes according to the use occasions, the reel is used to store steel strands or steel wire ropes, and the continuous stretching hydraulic jack is used to pull steel strands or steel wire ropes. Steel strands are preferred. This patent is for For the convenience of description, they are all referred to as steel strands for short below. The hinge or turntable is used to adjust the direction and angle of the oil cylinder according to the height of the lifting tower section and the angle of the steel strand.

In the above embodiment, referring to accompanying drawing 10, the anchor assembly includes two groups of anchors 50 sequentially connected to the steel strand group; A plurality of groups of anchor seats 52, the anchor seats 52 are fixedly connected with the housing 51, and each group of anchor seats 52 is correspondingly provided with an anchor piece 53 and a locking piece 54; the connection mode between the steel strand group 45 and the anchor assembly is : After all the steel strands pass through the anchor at the front end, any two adjacent steel strands are respectively locked on different anchors.

When connecting the steel strand group to the tower section of the wind turbine, first connect the anchor at the tail end to the hoisting point on the tower section, and then adjust the relative distance between the anchor at the front end and the anchor at the end end to adapt to the wind turbine tower. Raise the distance of the lifting point, and then hinge the anchor at the front end to another lifting point on the wind turbine tower with a bolt. During the lifting process, the anchor at the front end can rotate at a certain angle to adapt to the force under different lifting states , to achieve the purpose of stability.

In this embodiment, the number of hoisting points on the tower also matches the number of anchors, and each set of continuous stretching hydraulic jacks is equipped with a steel strand tension detection device to synchronize the tension of each steel strand Detection and comparison, if the deviation from the design value is too large, it will alarm immediately for inspection and troubleshooting.

The present invention takes the installation of the wind power generator tower as an example, and introduces the installation method of the present invention. Referring to accompanying drawings 3 to 8, according to auxiliary work before lifting, fan lifting assembly, new tower section transfer section in place, new tower section Steps such as connection and lifting, connection between fan and foundation section, confirmatory debugging of fan, removal of auxiliary devices and other steps complete all installation work. In order to facilitate understanding in this invention, the naming method of tower sections is named according to the order of fans from high to low, that is, the tower section where blades are installed It is the first tower section, followed by the second tower section, the third tower section... in the accompanying drawings of the present invention, for the convenience of clear display, the steel strand group is represented by a single straight line, which is actually distributed in a circle For the steel strand group formed by multiple steel strands, those skilled in the art should know the layout form of the steel strand group used in conjunction with the continuous stretching hydraulic jack; The wire groups are displayed in bold to facilitate understanding and distinguish the connection relationship between different steel strand groups and fan tower sections.

Now install step by step:

S1 Auxiliary work before lifting: including foundation construction, wind turbine foundation section installation, lifting frame installation, lifting centralized control device installation and commissioning; foundation construction includes lifting frame, lifting centralized control device, tower section transfer frame track, fan tower section in place, etc. For foundation construction, joint layout and joint construction are preferred, so as to reduce the engineering quantity, improve the stressed structure and improve reliability through joint force bearing. The foundation section of the fan should be installed in place in advance to avoid difficulties in installation due to large interference in the later stage. The lifting frame and the lifting centralized control device should be installed and debugged in place in advance to ensure that each device functions well.

S2 Fan lifting assembly: Refer to attached drawings 2-5, install lifting points at equal angles in the circumferential direction of each tower section of the fan tower, and assemble the third tower section, the second tower section and the first tower section of the fan tower. The fan machine room, generator and blades on the tower section and the upper part of the first tower section are connected to the steel strand group under tension during the installation of each tower section, so that one of the lifting centralized control devices in each group is continuously stretched The steel strand group of the type hydraulic hoist is connected to the third tower section, so that the steel strand group of another continuous tension hydraulic hoist in each group of lifting centralized control device is connected to the second tower section, so that each group of lifting centralized control The wind rope 44 of the last continuous stretching hydraulic hoist in the device is connected to the first tower section, and the hoisting centralized control device is activated to lift the installed equipment to the height of one tower section so that the new tower section can be placed and installed. Referring to accompanying drawing 10, the connection method between the steel strand group and the tower section is as follows: after all the steel strands pass through the anchor at the front end, any two adjacent steel strands are respectively locked on different anchors .

S3 new tower section transfer in place: According to the number of groups of transfer frames selected, one tower section is hoisted for each transfer frame, and the support oil cylinders are respectively activated to make the support tiles push the tower sections tightly, and the tower sections are transported in sequence according to the assembly sequence Go to the next step in the lifting frame; according to the number of tower section transfer frames selected, hoist a tower section for each tower section transfer frame, and the tower section should be placed on the corresponding transfer frame in a vertical position according to the installation sequence of the tower sections. The way of installation is in place, the angle of the circumference of the tower section on the transfer frame should be reasonable, and should match the installation angle of the circumference of the previous tower section, so as to facilitate the alignment between the two tower sections and facilitate the lifting of the steel strands. The group is connected with lifting lifting points. Before the tower section transfer frame moves, the supporting cylinders of the transfer frame should be driven to tighten the tower section together to ensure that the tower section is in a stable vertical state, and then drive the transfer frame to move along the track to the installation position under the installed tower section, and then clamp the The rail device and the track are reliably locked, and the locked state is shown in Figure 11.

The transfer frame of the tower section can also be used in series with multiple sections. In this working condition, the transfer frame is connected by the hinge point of the transfer frame, and a set of control system can be shared for overall joint control. The advantage of the combined use of multi-section tower section transfer frames is that loading multi-section towers at one time can make the lifting more continuous and efficient.

S4 new tower section connection and lifting: refer to attached drawings 6 and 7, loosen the steel strand group connected to the second tower section from the hoisting point of the second tower section, and install it on the tower section transfer frame On the hoisting point of the tower section, after all the steel strand groups are uniformly stressed, the support tile and the tower section are loosened, and the new tower section is slowly lifted and the top of the new tower section is connected to the bottom of the third tower section; Then the centralized control device is linked and controlled to lift the installed tower section and equipment as a whole. After a tower section height is steadily raised, another transfer frame equipped with a tower section is moved to the bottom of the installed tower section, and the rail clamp is locked with the track. , repeat the above operation to connect all the wind turbine towers; when multiple sets of transfer frames are enabled at the same time, the transfer frames with tower sections are in the state to be installed, and the transfer frames that have been hoisted with tower sections in the previous step have also been moved out of the lifting frame In addition, the hoisting of new tower sections can be carried out simultaneously. Through simultaneous operations, the preparation and waiting time can be shortened and continuous installation can be ensured. During the installation process, in case of severe weather that is not suitable for installation such as super-standard strong winds, you should immediately control the wind rope cylinder and the two sets of hoist rope cylinders to ensure that the overall installed tower section is in a vertical state, and tighten each group of steel strands, that is It can ensure the stability of the overall structure.

S5 wind turbine is connected to the foundation section: After the tower section connected to the foundation section is connected to other tower sections of the fan tower, after the installed wind turbine is raised by one tower section height, the tower section transfer frame is moved out of the lifting frame, and then, linkage Control the lifting centralized control device, slowly lower the fan tower section and equipment as a whole, slowly lower the fan tower section and equipment as a whole, accurately align and adjust the holes with the flange of the foundation section, and tighten the connecting bolts. The whole is connected with the foundation section. After this step is completed, the overall structure of the fan has been installed.

S6: Fan confirmatory debugging: carry out debugging of each component and equipment of the fan.

S7: Auxiliary device removal: Remove the lifting frame, lifting centralized control device and transfer frame, and the installation is complete. The connection between the wind rope and the first tower section can be unhooked and dismantled by personnel from the manhole to the operation platform outside the tower section by means of lifting equipment.

This patent preferably adopts a control method combining local sub-control + aggregated overall control. On-site sub-control refers to sub-systems such as lifting centralized control device and tower section transfer frame, which have operation modes such as on-site equipment operation and on-site wireless remote control; summary general control refers to the lifting centralized control device and tower section transfer frame etc. The signals of the sub-systems, as well as the signals of multiple other fan lifting devices are aggregated to the site or remote centralized control room, and the method of overall system control is carried out through the transmission of camera and sensor signals. The overall control can also be automatically controlled or manually controlled according to program settings. , ensuring the safety and efficiency of the lifting process.

The device and method can also be used for fan removal, and the removal step is the reverse operation of the installation step.

In this embodiment, an automatic verticality measuring device is installed on the fan tower section to ensure that the verticality deviation of the overall structure is within a reasonable range during the overall lifting process of the fan. The verticality can be measured by mechanical, optical, or electronic methods. and other measurement methods.

In this embodiment, a wind speed measurement device is installed on the fan tower section to measure the wind speed level during the wind turbine lifting process. When the wind speed is too high, the lifting operation will be suspended in time. device, and the measuring device equipped with this system can also be temporarily installed, and the measuring signal needs to be connected to the master control system. The manhole of the tower section and the operating platform are used to facilitate the installation and removal of each lifting point of the steel strand.

Because the diameter of each wind turbine tower is different, this embodiment adopts the lifting steel strand to connect the lifting point so that it will not be affected by the diameter change of the tower section, and the diameter change will only cause a slight change in the angle between the steel strand and the lifting point. Changes, because the continuous stretching hydraulic hoist in this embodiment has a large margin of hoisting capacity, which can solve this problem well.

In addition, for the machine room, generator, blades and other equipment on the upper part of the fan, the front and rear parts cannot be arranged in a completely equal moment balance, which brings the risk of unbalanced load to the lifting process. On the one hand, this patent adopts a continuous stretching hydraulic jack with multiple anchor points. The vertical three-dimensional lifting method strengthens the stability and dynamic adjustment ability of the lifting process. On the other hand, by setting up a group of multi-point wind-covering hydraulic steel strands, the overall verticality of the tower section can be automatically or manually adjusted at any time, effectively overcoming the eccentric load interference.

As a preferred embodiment of the present invention, step S2 of the above embodiment is hoisted by a mobile crane, which specifically includes the following steps:

S2-1 Use the mobile crane to hoist the third tower section to the foundation section, and connect the steel strand group of one of the continuous stretching hydraulic hoists in each group of lifting centralized control devices to the third tower section, and connect the third tower section The three-tower section adjusts the vertical and tightens the force of the steel strand group;

S2-2 Enable the mobile crane to hoist the second tower section above the third tower section, connect and fix the second tower section and the third tower section coaxially, and continuously stretch the other one of each group of lifting centralized control devices The steel strand group of the type hydraulic hoist is connected to the second tower section;

S2-3 Use the mobile crane to hoist the first tower section above the second tower section, connect and fix the first tower section and the second tower section coaxially, and continuously stretch the last one of each group of lifting centralized control devices The wind rope of the type hydraulic hoist is connected to the first tower section.

The wind rope is connected to the wind wind lifting point of the first tower section of the fan through the lifting point; the end of each set of lifting rope device is connected to the same tower section through at least two vertical anchors, and the two sets of lifting centralized control devices are respectively connected to the upper and lower Wind tower section. Correspondingly, the first tower section is provided with a plurality of lifting points for lifting the wind, and the other tower sections are provided with several groups of lifting points for lifting. The strand ends should match where they hang.

As a preferred embodiment of the present invention, step S2 in the above embodiment is hoisted by using the installation device of the present invention, which specifically includes the following steps:

S2-1 first uses the transfer frame to transfer the second tower section to the installation position in the lifting frame, drives a continuous stretching hydraulic hoist in each group of lifting centralized control device, and connects its anchors with the hoisting The lifting points are connected, tightened, and then the second tower section is lifted to exceed the clear height of the first tower section;

S2-2 uses the transfer frame to transfer the third tower section to the installation position in the lifting frame, drives another continuous stretching hydraulic hoist in each group of lifting centralized control device, and connects its anchors with the tower section respectively. Lift the lifting point to connect and tighten, slowly lift the third tower section to the position where it fits with the second tower section, and fasten the second tower section to the third tower section;

S2-3 Then use the crane to hoist the first tower section above the second tower section, connect and fasten the first tower section and the second tower section under the condition that the crane does not loosen the hook, and then place each group of lifting centralized control device The wind rope of the last continuous stretching hydraulic hoist is connected and tightened to the first tower section;

S2-4 Carry out the hoisting and adjustment of the fan machine room, generator and blades in the overall vertically stable state, and lock the rotatable or movable parts after the installation is completed.

As a preferred embodiment of the present invention, in this embodiment, after S2 is completed, that is, after the main functional components of the wind turbine are installed, functional debugging is carried out first, and after the debugging is passed, the subsequent tower section is lifted and connected.

In the above embodiment, after the completion of S2, the preliminary debugging is carried out. The advantage is that the debugging is carried out at a lower installation position, which is convenient for confirming the integrity and reliability of the installed equipment and for the maintenance of the faulty equipment. The main debugging work can be done here After the stage is completed, only confirmatory debugging can be carried out after the overall installation of the fan is completed, which reduces the overall debugging workload, avoids high-altitude debugging, and reduces the difficulty and danger of debugging operations.

In the description of the present invention, the continuous stretching hydraulic jack 37 is the equipment quoted in the standard DL/T 5400-2007 hydraulic building sliding formwork construction technical specification, and it is also the present invention disclosed in the Chinese patent application document with the publication number CN100424003C. There is equipment, so the specific structure of this existing equipment is not described in detail in the description of this patent, and those skilled in the art should know that it does not affect the realization of this patent.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (10)

1. A vertical lifting and installation device for variable-diameter unbalanced load equipment, characterized in that it includes:

   Rails and rail-type transfer devices mounted on rails;

   A lifting frame, the lifting frame is a truss structure, including a plurality of pillars and a mounting rod connected to the upper part of the pillars, and the lifting frame spans above the track; also includes

   Multiple sets of lifting centralized control devices installed on different positions outside the lifting frame, the lifting centralized control device is used to transfer the variable diameter non-balanced load equipment to the lifting frame after the rail-type transfer device transfers the variable diameter non-balanced load equipment Balanced load equipment is smoothly lifted to the installation station.
2. According to claim 1, a vertical lifting installation device for variable-diameter unbalanced load-type equipment is characterized in that: the rail-type transfer device includes a transfer frame, and the bottom of the transfer frame is equipped with rollers adapted to the rails, The top is provided with a plurality of support cylinders for fixing variable-diameter unbalanced load equipment. The piston rods of the support cylinders are connected with support tiles. The transfer frame hydraulic station and the transfer frame electric control box are installed on the transfer frame. The transfer frame hydraulic pressure The station is electrically controlled and electrically connected with the transfer rack; it also includes a rail clamp.
3. According to claim 1, a vertical lifting installation device for variable-diameter unbalanced load-type equipment is characterized in that: each set of lifting centralized control devices includes three continuous tension hydraulic hoists, and three continuous tension hydraulic hoists The lifting hydraulic station powered by the extension hydraulic hoist, and the lifting electric control box controlling the lifting hydraulic station, a plurality of fixed pulleys are arranged on the installation rod, and the fixed pulleys are used for the steel of the continuous stretching hydraulic hoist. The twisted wire group passes through and lifts the variable diameter unbalanced load type equipment.
4. According to claim 3, a device for vertical lifting and installation of variable-diameter unbalanced load-type equipment is characterized in that: the continuous stretching hydraulic lift includes a supporting base and a continuous stretching hydraulic jack hinged on the supporting base , and the steel strand group reel arranged at the rear of the continuous stretching hydraulic jack, the continuous stretching hydraulic jack is connected to the lifting hydraulic station, the motor of the steel strand group reel is connected to the lifting electric control box connection; in each group of lifting centralized control devices, one of the continuous stretching hydraulic hoists is connected to the wind rope, and the other two continuous stretching hydraulic hoists are connected to the steel strand group, and each continuous stretching hydraulic jack An anchor assembly is connected to the steel strand group.
5. According to claim 3, a device for vertical lifting and installation of variable-diameter unbalanced load-type equipment is characterized in that: the lifting frame includes three or four uprights, and the uprights are installed on both sides of the track, and the installation rod The height is greater than the height of the track-type transfer device; the installation rod is circular, and a plurality of the fixed pulleys are evenly distributed on the installation rod at equal angles.
6. According to claim 4, a device for vertical lifting and installation of variable-diameter unbalanced load-type equipment is characterized in that, the anchor assembly includes two groups of anchors sequentially connected to the steel strand group; the anchor includes a barrel Type shell, also includes multiple groups of anchor seats uniformly distributed in the shell, the anchor seats are fixedly connected with the shell, and each set of anchor seats is correspondingly provided with anchor pieces and locking pieces; the steel strand group and the anchor The connection method of the components is: after all steel strands pass through the anchor at the front end, any two adjacent steel strands are respectively locked on different anchors.
7. The method for vertically lifting and installing variable-diameter unbalanced load-type equipment is characterized in that it includes the following steps:

   S1 Auxiliary work before lifting: including foundation construction, fan base section installation, lifting frame installation, lifting centralized control device installation and commissioning;

   S2 Wind turbine lifting assembly: Install lifting points at equal angles in the circumferential direction of each tower section of the wind turbine tower, and assemble the third tower section, the second tower section, the first tower section and the upper part of the first tower section of the wind tower. The fan machine room, generator and blades, so that the steel strand group of one of the continuous stretching hydraulic hoists in each group of hoisting centralized control devices is connected to the third tower section, so that the other one of each group of hoisting centralized control devices is connected continuously The steel strand group of the stretching hydraulic hoist is connected to the second tower section, so that the wind rope of the last continuous stretching hydraulic hoist in each group of lifting centralized control device is connected to the first tower section, and the lifting centralized control device is started Lift the installed equipment as a whole over one tower section height, so that the new tower section can be placed and installed. The connection method between the steel strand group and the tower section is: after all the steel strands pass through the anchor at the front end, any Two adjacent steel strands are respectively locked on different anchors;

   S3 new tower section transfer in place: According to the number of groups of transfer frames selected, one tower section is hoisted for each transfer frame, and the support oil cylinders are respectively activated to make the support tiles push the tower sections tightly, and the tower sections are transported in sequence according to the assembly sequence Go to the lifting frame and go to the next step;

   S4 Connection and lifting of new tower section: loosen the connection of the steel strand group connected to the second tower section with the hoisting point of the second tower section, and install it on the hoisting point of the new tower section. After all the groups are evenly stressed, loosen the support of the supporting tiles and the tower section, slowly lift the new tower section and connect the top of the new tower section with the bottom of the third tower section; After steadily raising the height of one tower section with the equipment as a whole, move the transfer frame with another tower section to the bottom of the installed tower section, lock the rail clamp and the track, and repeat the above operations to complete the connection of the fan tower;

   S5 wind turbine is connected to the foundation section: After the tower section connected to the foundation section is connected to other tower sections of the fan tower, after the installed wind turbine is raised by one tower section height, the tower section transfer frame is moved out of the lifting frame, and then, linkage Control the lifting centralized control device, slowly lower the installed tower section of the fan and the overall equipment, and connect the entire fan tower with the foundation section;

   S6: Fan confirmatory debugging: carry out debugging of each component and equipment of the fan;

   S7: Auxiliary device removal: Remove the lifting frame, lifting centralized control device and transfer frame, and the installation is complete.
8. According to the method for vertically lifting and installing variable-diameter unbalanced load-type equipment according to claim 7, it is characterized in that S2 is hoisted by a mobile crane, and specifically includes the following steps:

   S2-1 Use the mobile crane to hoist the third tower section to the foundation section, and connect the steel strand group of one of the continuous stretching hydraulic hoists in each group of lifting centralized control devices to the third tower section, and connect the third tower section The three-tower section adjusts the vertical and tightens the force of the steel strand group;

   S2-2 Enable the mobile crane to hoist the second tower section above the third tower section, connect and fix the second tower section and the third tower section coaxially, and continuously stretch the other one of each group of lifting centralized control devices The steel strand group of the type hydraulic hoist is connected to the second tower section;

   S2-3 Use the mobile crane to hoist the first tower section above the second tower section, connect and fix the first tower section and the second tower section coaxially, and continuously stretch the last one of each group of lifting centralized control devices The wind rope of the type hydraulic hoist is connected to the first tower section.
9. According to claim 7, the method for vertically lifting and installing variable-diameter unbalanced load-type equipment is characterized in that S2 is hoisted by using the installation device of the present invention, and specifically includes the following steps:

   S2-1 first uses the transfer frame to transfer the second tower section to the installation position in the lifting frame, drives a continuous stretching hydraulic hoist in each group of lifting centralized control device, and connects its anchors with the hoisting The lifting points are connected, tightened, and then the second tower section is lifted to exceed the clear height of the first tower section;

   S2-2 uses the transfer frame to transfer the third tower section to the installation position in the lifting frame, drives another continuous stretching hydraulic hoist in each group of lifting centralized control device, and connects its anchors with the tower section respectively. Lift the lifting point to connect and tighten, slowly lift the third tower section to the position where it fits with the second tower section, and fasten the second tower section to the third tower section;

   S2-3 Then use the crane to hoist the first tower section above the second tower section, connect and fasten the first tower section and the second tower section under the condition that the crane does not loosen the hook, and then place each group of lifting centralized control device The wind rope of the last continuous stretching hydraulic hoist is connected and tightened to the first tower section;

   S2-4 Carry out the hoisting and adjustment of the fan machine room, generator and blades in the overall vertically stable state, and lock the rotatable or movable parts after the installation is completed.
10. According to claim 7, the method for vertical lifting and installation of equipment with variable diameter and unbalanced loads is characterized in that after S2 is completed, that is, after the main functional components of the fan are installed, functional debugging is carried out first, and after the debugging is passed, the subsequent tower is lifted and connected Festival.

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