A method and device for installing an offshore wind power suction tube pipe frame

Abstract

The present invention relates to the technical field of offshore engineering facilities, and in particular to an offshore wind power suction tube conductor frame installation method and device. Lifting points are respectively arranged at opposite ends of a lying conductor frame body. By controlling the lifting speed of each lifting point, the conductor frame body is flipped over to an upright state, thereby facilitating the installation of the suction tube body and the conductor frame body. After the installation, the two can be directly transported vertically, solving the major problems of traditional three-pile suction tube conductor frame construction process and equipment investment. The initial investment of the entire device is about 25 million, which is far lower than the initial investment of nearly 200 million of super-large gantry crane equipment; and there is no need to tension cable wind ropes, so the impact on the site is minimized; the foundation treatment is simple, the overall stability is good, and the economic benefit is high; the requirements of horizontal construction of the upper conductor frame and overall turning over, lifting and splicing are met, the horizontal construction of the upper conductor frame can be realized, the construction accuracy and construction efficiency are improved, and the risk of high-altitude operations is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore engineering facilities, and in particular to an installation method and device for an offshore wind power suction tube conductor frame. Background Art

[0002] Offshore wind turbine foundations use different forms of foundations, such as single piles, skirt piles, gravity type, jackets, and floating types, as the water depth changes. As my country's offshore wind power develops from shallow waters to deep seas, three-pile suction tube jacket wind turbine foundations are widely used because they can adapt to 20m to 50m water depths, have short offshore construction periods, and are less affected by offshore operation windows. The three-pile suction tube jacket wind turbine foundation includes an upper jacket and three suction piles at the bottom. The overall jacket structure is 92m to 98m high and weighs 2300t to 2600t.

[0003] At present, there are generally two traditional methods for constructing three-pile suction tube jacket wind turbine foundations, as follows: one is that the upper jacket is constructed horizontally, and the lifting equipment is used to turn it over and splice it with the suction tube, which requires the use of super-large gantry lifting equipment (lifting capacity must be greater than 3000t, and lifting height must be greater than 120 meters); the second is that the upper jacket is constructed horizontally in stages, which requires the use of lifting equipment (lifting capacity must be greater than 1000t, and lifting height must be greater than 120 meters), and then the staged vertical splicing operation is carried out. The disadvantage of method one is that the overall turning over of the horizontal construction requires the configuration of super-large lifting equipment, and the equipment investment of the construction unit is large. The disadvantage of method two is that the staged vertical splicing is difficult and requires high docking accuracy; the staged vertical splicing involves many high-altitude operations, the safety risk factor of the operation is high, and the operation efficiency is low. It can be seen that the use of these two construction processes either requires large equipment investment or the splicing process is difficult and involves many high-altitude operations, which is not conducive to reducing the construction cost of the three-pile suction tube conductor frame fan foundation and improving the construction efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an offshore wind power suction tube conductor frame installation method and device, which solves the problems of large construction process and equipment investment, difficult splicing process and many high-altitude operations of the traditional three-pile suction tube conductor frame.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for installing an offshore wind power suction tube jacket, which specifically includes the following steps:

[0006] S1. Preset a first hanging point at one end of the lying jacket body in the horizontal direction, preset a second hanging point at the other end of the lying jacket body in the horizontal direction, and set a line connecting the first hanging point and the second hanging point as an initial line;

[0007] S2, vertically hoisting the first hanging point upward at a first hoisting speed, vertically hoisting the second hanging point upward at a second hoisting speed, and adjusting the horizontal distance between the first hanging point and the second hanging point to gradually decrease, until the connecting line of the first hanging point and the second hanging point rotates 90° relative to the initial line;

[0008] S3. After synchronously lifting the first lifting point and the second lifting point vertically upward to a preset installation height at a third lifting speed, the suction cylinder body is installed vertically below the catheter frame body.

[0009] The present invention also provides an offshore wind power suction tube conductor frame installation device, which is used to connect the suction tube body and the conductor frame body, and includes a first lifting tower and a second lifting tower;

[0010] The first lifting tower is used to hoist one end of the conductor frame body, and the second lifting tower is used to hoist the other end of the conductor frame body. The lifting height of the first lifting tower is greater than the lifting height of the second lifting tower. The difference in lifting height between the first lifting tower and the second lifting tower is greater than or equal to the vertical height of one conductor frame body. The lifting height of the second lifting tower is greater than the vertical height of one suction cylinder body. The horizontal spacing between the first lifting tower and the second lifting tower is adjustable.

[0011] The beneficial effects of the present invention are as follows: the present invention provides an offshore wind power suction tube conductor frame installation method and device, wherein hanging points are respectively arranged at the opposite ends of a lying conductor frame body, and the conductor frame body is flipped into an upright state by controlling the hoisting speed of each hanging point, thereby facilitating the installation of the suction tube body and the conductor frame body, and the two can be directly transported vertically after installation, thus solving the problems of large construction process and equipment investment, difficult splicing process and many high-altitude operations of the traditional three-pile suction tube conductor frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0013] Figure 2 It is another structural schematic diagram of the offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0014] Figure 3 It is a partial schematic diagram of an offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0015] Figure 4 Another partial schematic diagram of the offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0016] Figure 5It is another structural schematic diagram of the offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0017] Figure 6 A top view of an offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0018] Figure 7 It is another structural schematic diagram of the offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0019] Figure 8 It is another structural schematic diagram of the offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0020] Fig. 9 It is another structural schematic diagram of the offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0021] Fig.10 It is another structural schematic diagram of the offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0022] Fig.11 It is another structural schematic diagram of the offshore wind power suction tube jacket installation device according to an embodiment of the present invention;

[0023] Description of labels:

[0024] 1. Suction cylinder body;

[0025] 2. The main body of the catheter frame;

[0026] 3. The first lifting tower;

[0027] 4. Second lifting tower;

[0028] 5. The first lifting assembly;

[0029] 6. Second lifting assembly;

[0030] 7. Concrete base;

[0031] 8. Tower body;

[0032] 9. Bottom section;

[0033] 10. Standard section;

[0034] 11. Top section;

[0035] 12. Beam;

[0036] 13. Winch;

[0037] 14. Pulley block;

[0038] 15. Balance cable;

[0039] 16. Tie rod set;

[0040] 17. Balance beam;

[0041] 18. Traveling trolley;

[0042] 19. Axis vehicle. DETAILED DESCRIPTION

[0043] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0044] Please refer to Figures 1 to 11 , a method for installing an offshore wind power suction tube pipe frame, specifically comprising the following steps:

[0045] S1. Preset a first hanging point at one end of the lying jacket body in the horizontal direction, preset a second hanging point at the other end of the lying jacket body in the horizontal direction, and set a line connecting the first hanging point and the second hanging point as an initial line;

[0046] S2, vertically hoisting the first hanging point upward at a first hoisting speed, vertically hoisting the second hanging point upward at a second hoisting speed, and adjusting the horizontal distance between the first hanging point and the second hanging point to gradually decrease, until the connecting line of the first hanging point and the second hanging point rotates 90° relative to the initial line;

[0047] S3. After synchronously lifting the first lifting point and the second lifting point vertically upward to a preset installation height at a third lifting speed, the suction cylinder body is installed vertically below the catheter frame body.

[0048] From the above description, it can be seen that the beneficial effects of the present invention are: first, two lifting points are respectively set at both ends of the lying conductor frame body, and then the two lifting points are lifted vertically at different speeds, so that the lying conductor frame body is lifted and turned over at the same time, until the turning angle reaches 90°, the two lifting points are lifted upward at the same speed, and finally the suction cylinder body is installed vertically below the conductor frame body. The present invention adopts the method of horizontal construction of the upper conductor frame and overall overturning, hoisting and splicing to achieve horizontal construction of the upper conductor frame, improve construction accuracy and construction efficiency, and overturning, hoisting and splicing reduces the risk of high-altitude operations.

[0049] An offshore wind power suction tube pipe frame installation device is used to connect a suction tube body and a pipe frame body, comprising a first lifting tower and a second lifting tower;

[0050] The first lifting tower is used to hoist one end of the conductor frame body, and the second lifting tower is used to hoist the other end of the conductor frame body. The lifting height of the first lifting tower is greater than the lifting height of the second lifting tower. The difference in lifting height between the first lifting tower and the second lifting tower is greater than or equal to the vertical height of one conductor frame body. The lifting height of the second lifting tower is greater than the vertical height of one suction cylinder body. The horizontal spacing between the first lifting tower and the second lifting tower is adjustable.

[0051] From the above description, it can be seen that the beneficial effects of the present invention are: when in use, the first lifting tower and the second lifting tower are respectively arranged on both sides of the conductor frame body, and the lifting height difference between the first lifting tower and the second lifting tower is at least the vertical height of a conductor frame body, thereby ensuring the smooth flipping of the conductor frame body, and the first lifting tower and the second lifting tower gradually approach each other while lifting the conductor frame body, and the lifting height of the second lifting tower is at least the vertical height of a suction cylinder body, thereby facilitating the suction cylinder body to be installed from the bottom of the conductor frame body, reducing the amount of high-altitude operations, and the advantage of using a tower structure is that the investment cost is low. The initial investment of the entire device is about 25 million, which is far lower than the initial investment of nearly 200 million of super-large gantry cranes; there is no need to tension cable wind ropes, and the impact on the site is minimized; the foundation treatment is simple, the overall stability is good, and the economic benefits are high; it meets the requirements of horizontal construction of the upper conductor frame and overall turning over, lifting and splicing, and can realize horizontal construction of the upper conductor frame, improve construction accuracy and construction efficiency, and reduce the risk of high-altitude operations.

[0052] Furthermore, the first lifting tower is provided with a first lifting assembly connected to one end of the conductor frame body, and the second lifting tower is provided with a second lifting assembly connected to the other end of the conductor frame body.

[0053] It can be seen from the above description that both the first lifting tower and the second lifting tower are provided with lifting assemblies, and the lifting assemblies are used to lift the main body of the conductor frame, which is easy to control and has low cost.

[0054] Furthermore, the number of the first lifting assemblies is two, and the horizontal heights of the two first lifting assemblies are equal. The number of the second lifting assemblies is one, and the distance between each first lifting assembly and the second lifting assembly is equal.

[0055] As can be seen from the above description, this design enables the three lifting components to form an isosceles triangle, thereby ensuring the stability and accuracy of the lifting operation.

[0056] Furthermore, the first lifting tower and the second lifting tower both include a concrete base and a tower body, the concrete base is set on the ground, the tower body is installed on the concrete base, the first lifting assembly is set on the tower body of the first lifting tower, and the second lifting assembly is set on the tower body of the second lifting tower.

[0057] From the above description, it can be seen that the concrete base is set on the ground to play a supporting and fixing role, and the tower body is set on the concrete base, which has a stable structure and is easy to install.

[0058] Furthermore, the tower body of the first lifting tower and the tower body of the second lifting tower both include a bottom section, a standard section, a top section and a beam, the bottom section is installed on a concrete base, two or more groups of the standard sections are spliced ​​in sequence, one end of the two or more groups of the spliced ​​standard sections is connected to the bottom section, the top section is connected to the other end of the two or more groups of the spliced ​​standard sections, the beam is arranged on the top section, the first lifting assembly is arranged on the beam of the first lifting tower, and the second lifting assembly is arranged on the beam of the second lifting tower.

[0059] From the above description, it can be seen that the tower body includes a bottom section, a standard section, a top section and a beam. The bottom section, the standard section and the top section can be selected independently according to the construction height requirements. After splicing and installation, the beam is installed on the top section. The beam is used to install lifting components to ensure the stability of the lifting structure.

[0060] Furthermore, the first lifting assembly and the second lifting assembly both include a winch and a pulley group, and the winch and the pulley group are connected to each other. The winch of the first lifting assembly is installed on the concrete base of the first lifting tower, and the pulley group of the first lifting assembly is installed on the beam of the first lifting tower. The winch of the second lifting assembly is installed on the concrete base of the second lifting tower, and the pulley group of the second lifting assembly is installed on the beam of the second lifting tower.

[0061] From the above description, it can be seen that the lifting assembly includes a winch and a pulley group. The winch is used to reel in and out the lifting rope, and the pulley group is used to pull and guide to ensure the lifting efficiency and accuracy.

[0062] Furthermore, the tower body of the first lifting tower and the tower body of the second lifting tower both include a balancing cable, a tie rod group and a balancing beam, one end of the balancing cable is connected to the concrete base, the tie rod group is arranged on the beam, the other end of the balancing cable is connected to one end of the tie rod group, and the other end of the tie rod group is used to fix the first lifting assembly or the second lifting assembly, and the first lifting assembly and the second lifting assembly are both connected to the conductor frame body through the balancing beam.

[0063] As can be seen from the above description, the tower body also includes a balance cable, a tie rod group and a balance beam, and the combination of the three enhances the stability of the main lifting structure of the jacket.

[0064] Furthermore, the second lifting tower also includes a traveling trolley, and the tower body of the second lifting tower is arranged on the traveling trolley.

[0065] It can be seen from the above description that the traveling trolley is used to realize the movement of the second lifting tower, so as to adjust the distance between the two lifting towers according to the hoisting state.

[0066] Furthermore, the offshore wind power suction tube conductor frame installation device also includes an axis vehicle, and the axis vehicle is provided with a tooling seat for installing the suction tube body.

[0067] From the above description, it can be seen that the axis vehicle installs the suction cylinder body through the tooling seat. After the catheter frame body is hoisted to the specified position, the axis vehicle sends the suction cylinder body to the installation area below the catheter frame body for welding and assembly. After installation, the axis vehicle is driven to send the assembled whole out of the installation area.

[0068] Embodiment 1 of the present invention is: a method for installing an offshore wind power suction tube pipe frame, which specifically includes the following steps:

[0069] Please refer to Figures 1 to 6 S1, preset a first hanging point at one end of the lying catheter rack body 2 along the horizontal direction, preset a second hanging point at the other end of the lying catheter rack body 2 along the horizontal direction, and set the line connecting the first hanging point and the second hanging point as the initial line;

[0070] Please refer to Figure 7 , 8 , S2, vertically hoisting the first hanging point upward at a first hoisting speed, vertically hoisting the second hanging point upward at a second hoisting speed, and adjusting the horizontal distance between the first hanging point and the second hanging point to gradually decrease, until the connecting line of the first hanging point and the second hanging point rotates 90° relative to the initial line;

[0071] Please refer to Figures 9 to 11 S3, after vertically hoisting the first hoisting point and the second hoisting point to a preset installation height synchronously at a third hoisting speed, the suction cylinder body 1 is installed vertically below the catheter frame body 2.

[0072] Please refer to Figures 1 to 11 , Embodiment 2 of the present invention is: an offshore wind power suction tube jacket installation device, used to connect a suction tube body 1 and a jacket frame body 2, comprising a first lifting tower 3 and a second lifting tower 4;

[0073] The first lifting tower 3 is used to hoist one end of the jacket body 2, and the second lifting tower 4 is used to hoist the other end of the jacket body 2. The lifting height of the first lifting tower 3 is greater than the lifting height of the second lifting tower 4. The difference in lifting height between the first lifting tower 3 and the second lifting tower 4 is greater than or equal to the vertical height of one jacket body 2. The lifting height of the second lifting tower 4 is greater than the vertical height of one suction cylinder body 1. The horizontal spacing between the first lifting tower 3 and the second lifting tower 4 is adjustable.

[0074] Please refer to Figures 1 to 11, the difference between the third embodiment of the present invention and the second embodiment is that: the first lifting tower 3 is provided with a first lifting assembly 5, the first lifting assembly 5 is connected to one end of the jacket body 2, and the second lifting tower 4 is provided with a second lifting assembly 6, the second lifting assembly 6 is connected to the other end of the jacket body 2. The number of the first lifting assemblies 5 is two, and the horizontal heights of the two first lifting assemblies 5 are equal. The number of the second lifting assembly 6 is one, and the spacing between each first lifting assembly 5 and the second lifting assembly 6 is equal. The first lifting tower 3 is a 3200t frame-type hoisting system (main hoist), that is, a double-hanging-point frame lifting gantry, including one pair of 2.4-meter lifting towers and one pair of 4.2-meter lifting towers spliced ​​together; the second lifting tower 4 is a 3200t frame-type hoisting system (tail), that is, a single-hanging-point frame tail lifting gantry, including two pairs of 2.4-meter lifting towers spliced ​​together. The first lifting tower 3 and the second lifting tower 4 both include a concrete base 7 and a tower body 8, the concrete base 7 is set on the ground, the tower body 8 is installed on the concrete base 7, the first lifting assembly 5 is set on the tower body 8 of the first lifting tower 3, and the second lifting assembly 6 is set on the tower body 8 of the second lifting tower 4. The tower body 8 of the first lifting tower 3 and the tower body 8 of the second lifting tower 4 both include a bottom section 9, a standard section 10, a top section 11 and a beam 12, the bottom section 9 is installed on the concrete base 7, two or more groups of the standard sections 10 are spliced ​​in sequence, one end of the two or more groups of the spliced ​​standard sections 10 is connected to the bottom section 9, the top section 11 is connected to the other end of the two or more groups of the spliced ​​standard sections 10, the beam 12 is set on the top section 11, the first lifting assembly 5 is set on the beam 12 of the first lifting tower 3, and the second lifting assembly 6 is set on the beam 12 of the second lifting tower 4. The number of standard sections 10 of the first lifting tower 3 is 15, and the top elevation of the beam 12 is 101.26m from the ground; the number of standard sections 10 of the second lifting tower 4 is 5, and the top elevation of the beam 12 is 36.18m from the ground. The bottom section of the first lifting tower 3 is 94.5m, the standard section is 106m, the top section is 114.13m, and the beam 12 is 2.63m high, which meets the hoisting requirements of the maximum specification suction tube guide frame (h=94.8m). The bottom section of the second lifting tower 4 is 93m, the standard section is 106m×4 sections+3m×1 section, the top section is 112.1m, and the beam 12 is 2.63m high, which meets the hoisting requirements.The first lifting assembly 5 and the second lifting assembly 6 both include a winch 13 and a pulley group 14, which are connected to each other. The winch 13 of the first lifting assembly 5 is installed on the concrete base 7 of the first lifting tower 3, and the pulley group 14 of the first lifting assembly 5 is installed on the beam 12 of the first lifting tower 3. The winch 13 of the second lifting assembly 6 is installed on the concrete base 7 of the second lifting tower 4, and the pulley group 14 of the second lifting assembly 6 is installed on the beam 12 of the second lifting tower 4. The first lifting assembly 5 is equipped with 2 sets of 800t lifting pulley groups 14, with a lifting capacity of 1600t; the second lifting assembly 6 is equipped with 2 sets of 500t lifting pulley groups 14, with a lifting capacity of 1000t; the lifting pulley groups 14 of the first lifting tower 3 and the second lifting tower 4 are both 2m high. The pulley group 14 is equipped with a traction wire rope. The total number of ropes of a single set of 800t pulley group 14 is 36, the number of wheels is 36, and there are 2 sets in total. The maximum force of a single set of pulley group is 1141 / 2×1.2 (uneven coefficient) = 684.6 tons. The tower body 8 of the first lifting tower 3 and the tower body 8 of the second lifting tower 4 both include a balancing cable 15, a tie rod group 16 and a balancing beam 17. One end of the balancing cable 15 is connected to the concrete base 7, and the tie rod group 16 is arranged on the beam 12. The other end of the balancing cable 15 is connected to one end of the tie rod group 16, and the other end of the tie rod group 16 is used to fix the first lifting assembly 5 or the second lifting assembly 6. The first lifting assembly 5 and the second lifting assembly 6 are both connected to the conductor frame body 2 through the balancing beam 17. The second lifting tower 4 also includes a walking trolley 18, and the tower body 8 of the second lifting tower 4 is arranged on the walking trolley 18. The height of the walking trolley 18 is 1.45m, and the walking trolley 18 is equipped with 4 groups and 2 tracks. The offshore wind power suction tube pipe frame installation device also includes an axis car 19, and the axis car 19 is provided with a tooling seat for installing the suction tube body 1. The axis car 19 is an SPMT axis car 19. The pulley group 14 on the first lifting tower 3 and the second lifting tower 4 includes a fixed pulley and a movable pulley. The fixed pulley is installed on the beam 12 and connected to the movable pulley through a lifting rope. The fixed pulley specification of the first lifting tower 3 is H800×18D, and the movable pulley specification is H500×18D, which meets the needs of this project. The total lifting capacity of the two groups of lifting points is 1600t, which meets the needs of this project. Considering the maximum lifting weight of 1141t, the lifting capacity utilization factor is 71%, ensuring the safety of lifting. The fixed pulley specification of the second lifting tower 4 is H500×13D, and the movable pulley specification is H500×13D. The total lifting capacity of the two sets of lifting points is 1000t, which meets the needs of this project. Considering the maximum lifting weight of 581t, the lifting capacity utilization factor is 58%, ensuring the safety of lifting.The tie rod assembly 16 includes a front tie rod, a column and a rear tie rod. The front tie rod and the rear tie rod are arranged in a triangle, and the column is connected to the vertex of the triangle, thereby improving the stability of the hoisting structure.

[0075] The working principle of this embodiment is as follows:

[0076] Please refer to Figures 1 to 6 First, use the SPMT axis vehicle 19 to transport the jacket body 2 to the designated location, preset the first lifting point and the second lifting point on the jacket body 2, install the lifting rigging, and use the first lifting assembly 5 and the first lifting assembly 5 to lift the jacket as a whole, and the SPMT axis vehicle 19 will leave the site; please refer to Figure 7 , 8 , and then the main body 2 of the pipe frame is hoisted to an upright state with the cooperation of the first lifting assembly 5 and the first lifting assembly 5. During the hoisting process, the second lifting tower 4 is delivered through the walking trolley 18 at the bottom, and the rigging of the two hoisting systems is always kept vertical; please refer to Figures 9 to 11 Then, the jacket body 2 is hoisted to the elevation through the cooperation of two sets of frame-type hoisting systems, and the three suction tube bodies 1 at the bottom of the jacket body 2 are transported to the vertical bottom of the jacket body 2 by the SPMT axis vehicle 19, and aligned and welded with the jacket body 2; after installation, the suction tube jacket is loaded as a whole by the SPMT axis vehicle 19, and the second lifting tower 4 is returned to the initial area. The suction tube jacket is driven out of the hoisting area as a whole, loaded on the ship, and shipped, in preparation for the turning over and assembly of the next jacket body 2.

[0077] In summary, the present invention provides an offshore wind power suction tube conductor frame installation method, firstly, two lifting points are respectively set at both ends of the lying conductor frame body, and then the two lifting points are vertically lifted at different speeds, so that the lying conductor frame body is lifted while flipping, until the flip angle reaches 90°, the two lifting points are lifted upward at the same speed, and finally the suction tube body is installed vertically below the conductor frame body. The present invention adopts a method of horizontal construction of the upper conductor frame and overall overturning, hoisting and splicing to achieve horizontal construction of the upper conductor frame, improve construction accuracy and construction efficiency, and overturning, hoisting and splicing reduces the risk of high-altitude operations. The present invention also provides an offshore wind power suction tube conductor frame installation device. When in use, the first lifting tower and the second lifting tower are respectively arranged on both sides of the conductor frame body, and the lifting height difference between the first lifting tower and the second lifting tower is at least the vertical height of one conductor frame body, so as to ensure the smooth flipping of the conductor frame body. The first lifting tower and the second lifting tower gradually approach each other while lifting the conductor frame body, and the lifting height of the second lifting tower is at least the vertical height of one suction tube body, so as to facilitate the suction tube body to be installed from the bottom of the conductor frame body, thereby reducing the amount of high-altitude operations. The advantage of adopting the tower structure is that the investment cost is low. The initial investment of the whole device is about 25 million, which is far lower than the initial investment of nearly 200 million of the super-large gantry crane. There is no need to tension the cable wind rope, and the impact on the site is minimized. The foundation treatment is simple, the overall stability is good, and the economic benefit is high. It meets the requirements of horizontal construction of the upper conductor frame and overall turning over, lifting and splicing, and can realize the horizontal construction of the upper conductor frame, improve the construction accuracy and construction efficiency, and reduce the risk of high-altitude operations. The first lifting tower and the second lifting tower are both provided with lifting components. The lifting components are used to lift the main body of the jacket, which is easy to control and low in cost. This design makes the three lifting components form an isosceles triangle, which ensures the stability and accuracy of the lifting operation. The concrete base is set on the ground to support and fix. The tower body is set on the concrete base, with a stable structure and convenient installation. The tower body includes a bottom section, a standard section, a top section and a beam. The bottom section, the standard section and the top section can be selected independently according to the construction height requirements. After splicing and installation, the beam is installed on the top section. The beam is used to install the lifting components to ensure the stability of the lifting structure. The lifting components include a winch and a pulley group. The winch is used to reel in and unreel the hoisting rope, and the pulley group is used to pull and guide to ensure the lifting efficiency and accuracy. The tower body also includes a balance cable, a pull rod group and a balance beam. The combination of the three enhances the stability of the main lifting structure of the jacket. The walking trolley is used to realize the movement of the second lifting tower, so as to adjust the distance between the two lifting towers according to the lifting state. The axis vehicle installs the suction cylinder body through the tooling seat. After the catheter frame body is hoisted to the specified position, the axis vehicle sends the suction cylinder body to the installation area below the catheter frame body for welding and assembly. After installation, the axis vehicle is driven to send the assembled whole out of the installation area.

[0078] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An offshore wind power suction tube pipe frame installation device, used to connect the suction tube body and the pipe frame body, characterized in that: including a first lifting tower and a second lifting tower; The first lifting tower is used to hoist one end of the jacket body, and the second lifting tower is used to hoist the other end of the jacket body. The lifting height of the first lifting tower is greater than the lifting height of the second lifting tower. The difference between the lifting heights of the first lifting tower and the second lifting tower is greater than or equal to the vertical height of one jacket body. The lifting height of the second lifting tower is greater than the vertical height of one suction cylinder body. The horizontal spacing between the first lifting tower and the second lifting tower is adjustable. The first lifting tower is provided with a first lifting assembly, the first lifting assembly is connected to one end of the jacket body, and the second lifting tower is provided with a second lifting assembly, the second lifting assembly is connected to the other end of the jacket body; The number of the first lifting assemblies is two, and the horizontal heights of the two first lifting assemblies are equal; the number of the second lifting assemblies is one, and the distances between each first lifting assembly and the second lifting assembly are equal; The first lifting tower and the second lifting tower both include a concrete base and a tower body, the concrete base is arranged on the ground, the tower body is installed on the concrete base, the first lifting assembly is arranged on the tower body of the first lifting tower, and the second lifting assembly is arranged on the tower body of the second lifting tower; The tower body of the first lifting tower and the tower body of the second lifting tower both include a bottom section, a standard section, a top section and a beam, the bottom section is installed on a concrete base, two or more groups of the standard sections are spliced ​​in sequence, one end of the two or more groups of the spliced ​​standard sections is connected to the bottom section, the top section is connected to the other end of the two or more groups of the spliced ​​standard sections, the beam is arranged on the top section, the first lifting assembly is arranged on the beam of the first lifting tower, and the second lifting assembly is arranged on the beam of the second lifting tower; The second lifting tower further comprises a traveling trolley, and the tower body of the second lifting tower is arranged on the traveling trolley; The offshore wind power suction tube conductor frame installation device also includes an axis vehicle, and the axis vehicle is provided with a tooling seat for installing the suction tube body.

2. The offshore wind power suction tube jacket installation device according to claim 1 is characterized in that: The first lifting assembly and the second lifting assembly both include a winch and a pulley group, and the winch and the pulley group are connected to each other. The winch of the first lifting assembly is installed on the concrete base of the first lifting tower, and the pulley group of the first lifting assembly is installed on the beam of the first lifting tower. The winch of the second lifting assembly is installed on the concrete base of the second lifting tower, and the pulley group of the second lifting assembly is installed on the beam of the second lifting tower.

3. The offshore wind power suction tube pipe frame installation device according to claim 1 is characterized in that: The tower body of the first lifting tower and the tower body of the second lifting tower both include a balancing cable, a tie rod group and a balancing beam, one end of the balancing cable is connected to the concrete base, the tie rod group is arranged on the beam, the other end of the balancing cable is connected to one end of the tie rod group, and the other end of the tie rod group is used to fix the first lifting assembly or the second lifting assembly, and the first lifting assembly and the second lifting assembly are both connected to the conductor frame body through the balancing beam.

4. A method for installing an offshore wind power suction tube jacket based on the offshore wind power suction tube jacket installation device according to any one of claims 1 to 3, characterized in that: The specific steps include: S1. Preset a first hanging point at one end of the lying jacket body in the horizontal direction, preset a second hanging point at the other end of the lying jacket body in the horizontal direction, and set a line connecting the first hanging point and the second hanging point as an initial line; S2, vertically hoisting the first hanging point upward at a first hoisting speed, vertically hoisting the second hanging point upward at a second hoisting speed, and adjusting the horizontal distance between the first hanging point and the second hanging point to gradually decrease, until the connecting line of the first hanging point and the second hanging point rotates 90° relative to the initial line; S3. After synchronously lifting the first lifting point and the second lifting point vertically upward to a preset installation height at a third lifting speed, the suction cylinder body is installed vertically below the catheter frame body.

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