A tower for offshore wind turbine construction

Abstract

The application provides a tower for offshore wind turbine construction, and relates to the technical field of wind turbine towers, which comprises a base, the base is a rectangular seat-shaped structure, four first connecting blocks are welded to the bottom end face of the base, a barrel body is welded to the bottom end face of each first connecting block, the four barrel bodies are fixing members of the base on the seabed, a connecting pipe is welded to each barrel body, the four connecting pipes are all welded to an air extraction pipe, and the air extraction pipe is connected to an external large air extraction pump. In the aspect of fixation, the base is matched with the four barrel bodies, the air extraction pipe is connected to the external large air extraction pump, the gas in the barrel bodies is extracted, the barrel bodies are inserted into the seabed to achieve stable fixation, the electric valve is arranged, the air extraction operation is facilitated, the insertion depth of the barrel bodies can be accurately adjusted by controlling the electric valve corresponding to each barrel body during horizontal adjustment, the installation requirement under different seabed topographies is met, and the flexibility and adaptability of tower installation are greatly improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of wind turbine tower, and in particular to a tower for offshore wind turbine construction. BACKGROUND

[0002] The tower for offshore wind turbine construction is a supporting and fixing structure specially designed for offshore wind power equipment installation and construction, and the core function thereof is to ensure stable installation and operation of the wind turbine in a complex offshore environment, and meanwhile, the construction convenience and environmental adaptability are considered.

[0003] For example, in the application No. CN202010167107.0, a tower assembly for a wind turbine, a construction method thereof and the wind turbine are disclosed, and the tower assembly for the wind turbine comprises a prefabricated concrete foundation, a truss tower, the truss tower comprises a plurality of prefabricated concrete tower components, the plurality of prefabricated concrete tower components are sequentially connected by post-pouring belts in the vertical direction, the prefabricated concrete tower component is a frame structure and comprises a plurality of support pieces, and adjacent support pieces in the plurality of support pieces are connected by post-pouring belts; and a prefabricated concrete transition piece is arranged at the top of the truss tower and used for installing a tower drum or a platform; the tower assembly for the wind turbine is convenient to process, high in forming efficiency, and the components thereof are convenient to transport.

[0004] The tower for the wind turbine similar to the above application still has the following problems:

[0005] The existing tower needs to be piled or poured and fixed when fixed on the seabed, and the installation period is long, and quick installation cannot be realized through improvement; and the fixing structure of the existing device is poor in stability and inconvenient to unfold. SUMMARY

[0006] The application relates to a tower for offshore wind turbine construction, which solves the problems that the existing tower needs to be piled or poured and fixed when fixed on the seabed, the installation period is long, quick installation cannot be realized through improvement, and the fixing structure of the existing device is poor in stability and inconvenient to unfold.

[0007] The application provides a tower for offshore wind turbine construction, which specifically comprises a base, the base is in a rectangular seat structure, four first connecting blocks are welded at the bottom end surface of the base, a barrel body is welded at the bottom end surface of each first connecting block, the four barrel bodies are fixing members of the base on the seabed, a connecting pipe is welded on each barrel body, the four connecting pipes are connected with a suction pipe, the suction pipe is connected with a large external suction pump, and an electric valve is installed on each connecting pipe.

[0008] Further, the barrel, connecting pipe, electric valve and air suction pipe together constitute a fixed part; the top of the base is fixed with a frame body through eight fixing screws, four fixing grooves are formed on the top end surface of the base, and the frame body is inserted into the four fixing grooves.

[0009] Further, a stabilizing part is mounted on the base, the stabilizing part is composed of second connecting blocks, auxiliary frames, first counterweights, supporting blocks, first locking jacks and second locking jacks, four second connecting blocks are rotatably arranged on the top end surface of the base, one auxiliary frame is rotatably arranged on the left two second connecting blocks, and one auxiliary frame is rotatably arranged between the right two second connecting blocks, and the two auxiliary frames are counterweights of the base.

[0010] Further, one first counterweight is rotatably arranged on each of the auxiliary frames, and the two first counterweights together constitute a stabilizing part of the base.

[0011] Further, two supporting blocks are rotatably arranged on each of the first counterweights, the four supporting blocks are rectangular block structures, and the four supporting blocks together constitute a second stabilizing part of the base.

[0012] Further, one first locking jack is formed in the rotating seat on each of the first counterweights for providing rotation of the supporting blocks, and one second locking jack is formed in each of the supporting blocks, which are matched and aligned when the supporting blocks are unfolded.

[0013] Further, an installation part is mounted on the base, the installation part is composed of a large hydraulic cylinder, a fixing seat and mounting screws, a large hydraulic cylinder is fixed on the top end surface of the base, a fixing seat is fixed on the extending end of the large hydraulic cylinder, the fixing seat penetrates through the frame body, and six mounting screws are annularly arranged and welded on the extending end of the fixing seat.

[0014] Further, the fixing seat has a cylindrical cover structure, the fixing seat is sleeved outside the large hydraulic cylinder, and the fixing seat is a protection part of the extending end of the large hydraulic cylinder.

[0015] Further, a driving part is mounted on the frame body, the driving part is composed of third connecting blocks, driving rods, stop rings, spiral springs, driving hydraulic cylinders and driving blocks, two third connecting blocks are welded on the frame body, one driving rod is slidably arranged on each of the third connecting blocks, the two driving rods are slidably arranged on the frame body, the outer sides of the two driving rods are respectively in contact with the two auxiliary frames after folding, two stop rings are welded on each of the driving rods, one spiral spring is sleeved on each of the driving rods, the inner sides of the two driving rods are in contact under the elastic force of the two spiral springs, the inner sides of the driving rods are arc-shaped structures after polishing.

[0016] Further, the frame body is fixed with a driving hydraulic cylinder, the extension end of the driving hydraulic cylinder is fixed with a driving block, the driving block is located above the inner side of the two driving rods, and the lower end of the driving block is a pointed structure; when the driving hydraulic cylinder is extended, the driving block is in contact with the inner side of the two driving rods, and the two driving rods are in a synchronous outward moving state under the driving of the driving block.

[0017] The application provides a tower for offshore wind turbine construction, and has the following beneficial effects:

[0018] In the aspect of fixation, the base is matched with four barrel bodies, which are connected with an external large air suction pump through an air suction pipe, and the air in the barrel bodies is sucked out to make them penetrate into the seabed to achieve stable fixation; the setting of the electric valve not only facilitates air suction operation, but also can accurately adjust the penetration depth of the single barrel body by controlling the corresponding electric valve of the single barrel body during horizontal adjustment, so that the installation requirement under different seabed topographies is met, and the flexibility and adaptability of tower installation are greatly improved.

[0019] In the aspect of stability guarantee, the stability part matched with the base plays a key role, the second connecting block, the auxiliary frame, the first counterweight block and the supporting block are successively arranged to form a stable structure; the auxiliary frame and the first counterweight block are in contact with the seabed after being unfolded, the counterweight of the base is increased, the gravity center is reduced, and the overturning resistance is enhanced; and the supporting block further expands the contact area with the seabed, and is fixed through the cooperation of the first and second locking insertion holes and the locking pin, so that the stability and wind resistance of the base are effectively improved while the supporting effect is exerted, and the tower is still stable in complex sea conditions and strong wind environment.

[0020] Through the setting of the mounting part, the large hydraulic cylinder drives the fixing seat, and the mounting screw rod at the extension end of the fixing seat is convenient for the installation and fixation of the wind power equipment; when a very large storm is encountered, the large hydraulic cylinder can be driven to retract, the gravity center of the equipment is reduced, the wind resistance is reduced, the stability of the tower in extreme weather is effectively improved, and the damage risk is reduced; meanwhile, the fixing seat has a cylindrical cover-shaped structure, can protect the extension end of the large hydraulic cylinder, prolong the service life of the equipment, and reduce the maintenance cost.

[0021] Through the setting of the driving part, the driving hydraulic cylinder, the driving block and the driving rod on the frame body cooperate with each other, the pointed structure of the driving block pushes the driving rod to move outward when the driving hydraulic cylinder is extended, the unfolding of the auxiliary frame is easily realized, compared with the traditional manual or complex mechanical operation, the installation efficiency is greatly improved, and the construction difficulty and labor cost are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0023] The drawings in the following description merely serve to clarify some embodiments of the present application, and are not intended to limit the present application.

[0024] In the drawings:

[0025] Figure 1 The axial view structural schematic diagram of the tower of the offshore wind turbine construction is shown in the present application;

[0026] Figure 2 The main view structural schematic diagram of the tower of the offshore wind turbine construction is shown in the present application;

[0027] Figure 3 The axial view structural schematic diagram of the tower of the offshore wind turbine construction is shown in the present application;

[0028] Figure 4 The axial view structural schematic diagram of the tower of the offshore wind turbine construction is shown in the present application; Figure 3 after being partially cut open;

[0029] Figure 5 The axial view structural schematic diagram of the tower of the offshore wind turbine construction is shown in the present application; Figure 3 after being partially cut open;

[0030] Figure 6 The axial view structural schematic diagram of the tower of the offshore wind turbine construction is shown in the present application;

[0031] Figure 7 The axial view structural schematic diagram of the tower of the offshore wind turbine construction is shown in the present application;

[0032] Figure 8 The axial view structural schematic diagram of the tower of the offshore wind turbine construction is shown in the present application; Figure 7 after being rotated.

[0033] List of reference signs

[0034] 1, base; 101, first connecting block; 102, fixed groove; 2, fixed part; 201, barrel body; 202, connecting pipe; 203, electric valve; 204, air extraction pipe; 3, frame body; 301, fixed screw rod; 4, stabilizing part; 401, second connecting block; 402, auxiliary frame; 403, first counterweight block; 404, supporting block; 405, first locking jack; 406, second locking jack; 5, mounting part; 501, large hydraulic cylinder; 502, fixed seat; 503, mounting screw rod; 6, driving part; 601, third connecting block; 602, driving rod; 603, stop ring; 604, helical spring; 605, driving hydraulic cylinder; 606, driving block. DETAILED DESCRIPTION

[0035] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0036] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined in the embodiments of the present application.

[0037] The terms "first", "second", and similar terms used in the embodiments of the present application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "one", "a", or "the" and similar terms do not denote a quantity restriction, but denote the existence of at least one. Similarly, the terms "include" or "contain" and similar terms mean that the elements or objects before the term cover the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. In the following description, spatial and directional terms such as "up", "down", "front", "back", "top", "bottom", "vertical", and "horizontal" may be used to describe the embodiments of the present application, but it should be understood that these terms are only used to facilitate the description of the embodiments shown in the drawings, and do not require the actual device to be constructed or operated in a particular orientation. In the following description, the use of terms such as "connect", "couple", "fix", and "attach" can mean that two elements or structures are directly connected without other elements or structures, or that two elements or structures are indirectly connected through intermediate elements or structures, unless otherwise specified herein.

[0038] Embodiment one: please refer to Figures 1 to 8 :

[0039] The application provides a tower for offshore wind turbine construction, which comprises a base 1; the base 1 is in the shape of a rectangular seat, four first connecting blocks 101 are welded to the bottom end surface of the base 1, one barrel body 201 is welded to the bottom end surface of each first connecting block 101, and the four barrel bodies 201 are fixing members of the base 1 on the sea bottom; one connecting pipe 202 is welded to each barrel body 201, the four connecting pipes 202 are all welded to an air extraction pipe 204, and the air extraction pipe 204 is connected to an external large air extraction pump; after the device is placed on the sea bottom, the four barrel bodies 201 are in contact with the sea bottom, the external large air extraction pump is started, and the gas in the four barrel bodies 201 is extracted under the action of the large air extraction pump; after the gas in the four barrel bodies 201 is extracted, the four barrel bodies 201 are inserted into the sea bottom to complete the fixation of the device; one electric valve 203 is installed on each connecting pipe 202, the four electric valves 203 are opened during air extraction, the four electric valves 203 are closed after air extraction, and when the device needs to be adjusted horizontally, the insertion depth of the four barrel bodies 201 in the sea bottom only needs to be adjusted; when the insertion depth of a barrel body 201 needs to be adjusted alone during adjustment, the corresponding electric valve 203 is only needed to be opened, the remaining three electric valves 203 are only needed to be closed, and then the external large air extraction pump is only needed to be started.

[0040] The barrel body 201, the connecting pipe 202, the electric valve 203 and the air extraction pipe 204 together form a fixing part 2; an arch body 3 is fixed to the top of the base 1 through eight fixing screws 301, four fixing grooves 102 are formed in the top end surface of the base 1, the arch body 3 is inserted into the four fixing grooves 102, and the insertion of the arch body 3 and the fixing grooves 102 can improve the stability of the fixation of the arch body 3 on the base 1.

[0041] The base 1 is provided with a stabilizing part 4, the stabilizing part 4 is composed of a second connecting block 401, an auxiliary frame 402, a first counterweight 403, a supporting block 404, a first locking jack 405 and a second locking jack 406, four second connecting blocks 401 are rotatably arranged on the top end surface of the base 1, one auxiliary frame 402 is rotatably arranged on the left two second connecting blocks 401, one auxiliary frame 402 is also rotatably arranged between the right two second connecting blocks 401, and the two auxiliary frames 402 are counterweight members of the base 1.

[0042] Each auxiliary frame 402 is rotatably provided with a first counterweight 403, and the two first counterweights 403 together form a stabilizing member of the base 1; during use, the two first counterweights 403 are in contact with the sea bottom after being unfolded, and the contact of the two first counterweights 403 with the sea bottom can improve the stability of the base 1 after being installed on the sea bottom.

[0043] Two support blocks 404 are arranged on each first counterweight 403, the four support blocks 404 are rectangular block structures, and the four support blocks 404 jointly form the second stabilizing piece of the base 1.

[0044] The first locking hole 405 and the second locking hole 406 are matched, the first locking hole 405 and the second locking hole 406 are aligned after the support block 404 is unfolded, and the bolt is inserted through the first locking hole 405 and the second locking hole 406 during installation.

[0045] The base 1 is provided with a mounting portion 5, the mounting portion 5 is composed of a large hydraulic cylinder 501, a fixed seat 502 and a mounting screw 503, the top surface of the base 1 is fixed with a large hydraulic cylinder 501, the extension end of the large hydraulic cylinder 501 is fixed with a fixed seat 502, the fixed seat 502 penetrates the frame body 3, and six mounting screws 503 are annularly arranged and welded at the extension end of the fixed seat 502.

[0046] The fixed seat 502 is a cylindrical cover structure, the fixed seat 502 is sleeved outside the large hydraulic cylinder 501, and the fixed seat 502 is a protection piece of the extension end of the large hydraulic cylinder 501.

[0047] The frame body 3 is provided with a driving portion 6, the driving portion 6 is composed of a third connecting block 601, a driving rod 602, a stop ring 603, a spiral spring 604, a driving hydraulic cylinder 605 and a driving block 606, two third connecting blocks 601 are welded on the frame body 3, and a driving rod 602 is slidably arranged on each third connecting block 601.

[0048] Example two, on the basis of example one, as shown in Figures 1-8 The driving hydraulic cylinder 605 is fixed on the frame 3, and the driving block 606 is fixed on the extending end of the driving hydraulic cylinder 605. The driving block 606 is located above the inner side of the two driving rods 602, and the lower end of the driving block 606 is a pointed structure. When the driving hydraulic cylinder 605 extends, the driving block 606 contacts the inner side of the two driving rods 602. Under the drive of the driving block 606, the two driving rods 602 move outward synchronously. When installing, the driving hydraulic cylinder 605 is controlled to extend, and the two driving rods 602 move outward under the drive of the driving block 606, which can complete the expansion of the auxiliary frame 402, and the installation is convenient.

[0049] The working principle of the embodiment is as follows: the device is placed in the sea by using a suspension device. After the four barrels 201 are initially inserted into the seabed, a large external air pump is started. Under the action of the large air pump, the gas in the four barrels 201 is extracted. After the gas in the four barrels 201 is extracted, the four barrels 201 are inserted into the seabed to complete the fixation of the device. An electric valve 203 is installed on each connecting pipe 202. When air is extracted, the four electric valves 203 are opened. After air extraction is completed, the four electric valves 203 are closed. When the device needs to be adjusted horizontally, only the insertion depth of the four barrels 201 in the seabed needs to be adjusted. When adjusting, when the insertion depth of a barrel 201 needs to be adjusted alone, only the corresponding electric valve 203 needs to be opened, the remaining three electric valves 203 need to be closed, and then the large external air pump needs to be started. The driving hydraulic cylinder 605 is controlled to extend, and the two driving rods 602 move outward under the drive of the driving block 606, which can complete the expansion of the auxiliary frame 402. At the same time that the auxiliary frame 402 expands, the first counterweight 403 and the support block 404 expand synchronously under the action of inertia and vibration. The worker dives into the seabed and uses a bolt to pass through the first locking hole 405 and the second locking hole 406 to complete the locking of the support block 404. When the wind power generation equipment is installed, the six installation screws 503 can be installed on the fixed seat 502, and the large hydraulic cylinder 501 can be driven to shrink when a super storm comes.

Claims

1. A tower for offshore wind turbine construction, characterised in that Include: Base (1), the base (1) is rectangular seat structure, the bottom end surface of base (1) is welded with four first connecting blocks (101), the bottom end surface of each first connecting block (101) is welded with a barrel (201), four barrels (201) are the fixing parts of base (1) on the seabed;Each barrel (201) is welded with a connecting pipe (202), four connecting pipes (202) are welded with suction pipe (204) connection, suction pipe (204) is connected with the large external suction pump;Each connecting pipe (202) is installed with an electric valve (203);Barrel (201), connecting pipe (202), electric valve (203) and suction pipe (204) jointly constitute the fixed part (2);The top of base (1) is fixed with frame (3) through eight fixed screw rods (301), the top end surface of base (1) is provided with four fixed slots (102), frame (3) is inserted into four fixed slots (102); The base (1) is installed with stable part (4), the stable part (4) is composed of second connecting block (401), auxiliary frame (402), first counterweight block (403), support block (404), first locking hole (405) and second locking hole (406), the top end surface of base (1) is rotatably provided with four second connecting blocks (401), the left two second connecting blocks (401) are rotatably provided with an auxiliary frame (402), the right two second connecting blocks (401) are also rotatably provided with an auxiliary frame (402), and the two auxiliary frames (402) are counterweight parts of base (1); Each auxiliary frame (402) is rotatably provided with a first counterweight block (403), and the two first counterweight blocks (403) jointly constitute the stabilizing part of base (1); Each first counterweight block (403) is rotatably provided with two support blocks (404), four support blocks (404) are rectangular block structure, and four support blocks (404) jointly constitute the second stabilizing part of base (1); Each first counterweight block (403) is rotatably provided with two support blocks (404), four support blocks (404) are rectangular block structure, and four support blocks (404) jointly constitute the second stabilizing part of base (1); Each first counterweight block (403) is rotatably provided with two support blocks (404), four support blocks (404) are rectangular block structure, and four support blocks (404) jointly constitute the second stabilizing part of base (1); The frame body (3) is provided with a driving part (6), the driving part (6) is composed of a third connecting block (601), a driving rod (602), a stop ring (603), a spiral spring (604), a driving hydraulic cylinder (605) and a driving block (606), two third connecting blocks (601) are welded on the frame body (3), each third connecting block (601) is slidably provided with a driving rod (602), the two driving rods (602) are slidably arranged on the frame body (3), the outer sides of the two driving rods (602) are respectively in contact with the two auxiliary frames (402) after being folded, two stop rings (603) are welded on each driving rod (602), each driving rod (602) is sleeved with a spiral spring (604), the inner sides of the two driving rods (602) are in contact under the elastic pushing of the two spiral springs (604), the inner sides of each driving rod (602) are polished, and the inner sides of the two driving rods (602) are in arc-shaped structure after polishing; A driving hydraulic cylinder (605) is fixed on the frame body (3), the extending end of the driving hydraulic cylinder (605) is fixed with a driving block (606), the driving block (606) is located above the inner sides of the two driving rods (602), the lower end of the driving block (606) is in a pointed structure, the driving block (606) is in contact with the inner sides of the two driving rods (602) when the driving hydraulic cylinder (605) is extended, and the two driving rods (602) are in a synchronous outward moving state under the driving of the driving block (606).

2. A tower for offshore windmill construction according to claim 1, characterized in that The base (1) is provided with a mounting part (5), the mounting part (5) is composed of a large hydraulic cylinder (501), a fixed seat (502) and a mounting screw (503), the top end surface of the base (1) is fixed with a large hydraulic cylinder (501), the extending end of the large hydraulic cylinder (501) is fixed with a fixed seat (502), the fixed seat (502) penetrates through the frame body (3), and the extending end of the fixed seat (502) is fixedly welded with six mounting screws (503) in a ring array shape.

3. A tower for offshore windmill construction according to claim 2, characterized in that The fixed seat (502) is in a cylindrical cover shape, the fixed seat (502) is sleeved outside the large hydraulic cylinder (501), and the fixed seat (502) is a protection member for the extending end of the large hydraulic cylinder (501).

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