A flexible docking installation structure and installation method of an offshore wind turbine

Abstract

The present invention provides a flexible docking installation structure of an offshore wind turbine and an installation method thereof, comprising an upper support member and a lower support member arranged at the bottom end of the upper support member, wherein a first flange is installed on the outer surface of the bottom end of the upper support member, and a second flange is arranged on the outer surface of the top end of the lower support member, wherein the first flange is connected to the second flange by a fixing component, and a guide component is arranged outside the second flange. The present invention can obtain data feedback generated during installation during a stable installation process to assist workers in correcting installation actions.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of wind turbines, and in particular to a flexible docking installation structure of an offshore wind turbine and an installation method thereof. Background Art

[0002] Wind power generation is the fastest growing green energy technology in the world. People have noticed some limitations on the use of wind energy on land. Due to the abundant offshore wind energy resources and the feasibility of current technology, the ocean will become a rapidly developing wind power market.

[0003] According to the patent document with application number CN201220185067.3, a flexible receiving and alignment device for installing an offshore wind turbine is provided. The wind turbine installation device includes an upper suspension frame member connected to the upper tower of the offshore wind turbine, the upper suspension frame member includes an external support member, a positioning member, a lifting member and an inner ring, the inner ring is arranged on the inner side of the upper suspension frame member, and the positioning member and the lifting member are respectively arranged on the external support member of the upper suspension frame member; the lower support frame member is suspended on the lower tower of the offshore wind turbine, including a flexible receiving member and a positioning and centering member, the flexible receiving member includes a hydraulic cylinder and an energy storage device that are lifted and lowered at the same time, and the positioning and centering member is arranged on the circumference of the lower support frame member. The installation device can effectively reduce the impact of waves on the installation of offshore wind turbines, and can also more accurately achieve the alignment installation of offshore wind turbines.

[0004] The above-mentioned wind turbine installation device can effectively reduce the impact of waves on the installation of offshore wind turbines, and can also more accurately realize the positioning installation of offshore wind turbines. However, when installing the traditional wind turbine installation device, workers still need to make judgments based on experience, and it is difficult to obtain data feedback generated during the installation process, which affects the efficiency of the installation. Summary of the invention

[0005] The present invention mainly provides a flexible docking installation structure of an offshore wind turbine and an installation method thereof to solve the technical problems raised in the above-mentioned background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A flexible docking installation structure of an offshore wind turbine and an installation method thereof, comprising an upper support member and a lower support member arranged at the bottom end of the upper support member, wherein a first flange is installed on the outer surface of the bottom end of the upper support member, and a second flange is arranged on the outer surface of the top end of the lower support member, wherein the first flange is connected to the second flange by a fixing assembly, and a guide assembly is arranged outside the second flange;

[0008] The fixing assembly includes a plurality of Tang's threaded rods that sequentially penetrate the first flange edge and the second flange edge from top to bottom, and nut locking mechanisms provided at both ends of the Tang's threaded rods;

[0009] The guide assembly includes a plurality of first guide grooves arranged at the top end of the second flange edge, a second guide groove arranged between two adjacent first guide grooves and at the top end of the second flange edge, and a buffer mechanism arranged between adjacent first guide grooves and second guide grooves. A first infrared rangefinder is passed through one end of the first guide groove away from the lower supporting member.

[0010] Furthermore, the nut locking mechanism includes a locking nut that is meshed and connected with the outer surface of one end of the Down's threaded rod from top to bottom, and a screw rod that passes through both ends of the locking nut. The two ends of the Down's threaded rod are locked by the locking nut, thereby improving the stability of the Down's threaded rod when it is connected to the first flange edge and the second flange edge.

[0011] Furthermore, the buffer mechanism includes a plurality of buffer cylinders penetrated through the second flange edge shell, and a first vibration isolator installed on the upper surface of the piston rod of the buffer cylinder. The first vibration isolator is driven to abut against the lower surface of the first flange edge through the extension and retraction of the piston rod of the buffer cylinder, thereby providing support for the first flange edge.

[0012] Furthermore, the buffer mechanism also includes a second vibration isolator arranged between adjacent buffer cylinders, and the second vibration isolator is passed through the shell of the second flange edge. When the first flange edge abuts the second flange edge, the second vibration isolator assists the first vibration isolator to provide buffering for the first flange edge.

[0013] Furthermore, the buffer mechanism also includes a first excitation coil arranged on both sides of the buffer cylinder, and a second excitation coil arranged on both sides of the second vibration isolator. The first excitation coil and the second excitation coil are both passed through the shell of the second flange edge. The first excitation coil is used to enhance the magnetostrictive effect of the first vibration isolator on the piston rod, and the second excitation coil is used to enhance the magnetostrictive effect of the second vibration isolator.

[0014] Furthermore, the lower surface of the first flange edge is provided with a plurality of third guide grooves corresponding to the buffer cylinder, and a second infrared rangefinder is passed through the end of the third guide groove away from the upper supporting member. The first vibration isolator is guided to be inserted through the third guide groove, and the distance between it and the first vibration isolator is measured by the second infrared rangefinder to obtain distance data.

[0015] Furthermore, a plurality of reinforcing beams are installed on the surfaces of the first flange edge and the second flange edge that are away from each other, the diameter of the first flange edge is smaller than the diameter of the second flange edge, and the structural strength of the first flange edge and the second flange edge is improved by the reinforcing beams.

[0016] According to the above technical solution of a flexible docking installation structure of an offshore wind turbine, a method for installing the flexible docking installation structure of an offshore wind turbine is also provided, comprising the following steps:

[0017] Step 1: hang the lower support member on the top of the lower tower of the wind turbine by a transport ship, and connect the lower support member and the lower tower of the wind turbine by bolts;

[0018] Step 2: transport the upper support member to the vicinity of the lower support member installed in step 1 by a transport ship, and lift the upper support member by a crane ship;

[0019] Step 3, using a crane ship to move the upper support member so that the Down's threaded rod corresponds to the first guide groove and the second guide groove one by one, and using a first infrared rangefinder to measure the distance from the Down's threaded rod to obtain distance data;

[0020] Step 4: The control center of the crane vessel receives the distance data obtained in step 3 through the network, so that the workers can refer to the distance data and align the Tang's threaded rod with the screw holes in the first guide groove and the second guide groove;

[0021] Step 5: Lower the upper support structure by using a crane ship, and then rotate the Down's threaded rod to insert it into the screw holes in the first guide groove and the second guide groove. Insert locking nuts at both ends of the Down's threaded rod and insert screws at both ends of the locking nuts to complete the installation of the fan.

[0022] Furthermore, in step five, when the upper supporting member is lowered by the crane ship, the piston rod of the buffer cylinder extends until it abuts against the lower surface of the first flange edge, and as the crane ship lowers the supporting member, the piston rod of the buffer cylinder retracts to support the lower supporting member.

[0023] Furthermore, in step five, after the piston rod of the buffer cylinder is fully retracted, the magnetostrictive effect of the first vibration isolator on the piston rod is increased by the first excitation coil, and the magnetostrictive effect of the second vibration isolator is increased by the second excitation coil to adjust the overall stiffness of the second flange edge.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] Firstly, the present invention can obtain data feedback generated during the installation during the stable installation process to assist workers in correcting the installation actions, specifically: the upper support member is moved by the crane ship to make the Down's threaded rod correspond to the first guide groove and the second guide groove one by one, and the distance from the Down's threaded rod is measured by the first infrared rangefinder to obtain distance data, and the control center of the crane ship receives the distance data obtained in the step three through the network for workers to refer to the distance data.

[0026] Secondly, the present invention can provide support for the upper support member during and after the installation process, thereby improving the stability of the installation. Specifically, the piston rod of the buffer cylinder extends until it abuts against the lower surface of the first flange edge, and as the crane ship lowers the support member, the piston rod of the buffer cylinder retracts to support the lower support member, and the magnetostrictive effect of the first isolator on the piston rod is increased by the first excitation coil, and the magnetostrictive effect of the second isolator is increased by the second excitation coil to adjust the overall stiffness of the second flange edge.

[0027] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the upper support member and the first flange edge of the present invention;

[0030] Figure 3 for Figure 2 A magnified view of the structure of area A;

[0031] Figure 4 It is a structural schematic diagram of the lower supporting member of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the guide assembly of the present invention;

[0033] Figure 6 It is a schematic structural diagram of the upper support member and the first flange edge of the present invention;

[0034] Figure 7 It is a front view of the present invention;

[0035] Figure 8 It is a top view of the present invention.

[0036] In the figure: 10, upper supporting member; 20, lower supporting member; 30, first flange edge; 31, third guide groove; 32, second infrared rangefinder; 40, second flange edge; 50, fixing assembly; 51, Down's threaded rod; 52, nut locking mechanism; 521, locking nut; 522, screw rod; 60, guiding assembly; 61, first guide groove; 62, buffer mechanism; 621, buffer cylinder; 622, first excitation coil; 623, first vibration isolator; 624, second excitation coil; 625, second vibration isolator; 63, second guide groove; 64, first infrared rangefinder; 70, reinforcing beam. DETAILED DESCRIPTION

[0037] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] For examples, please refer to the attached Figure 1-8 In a preferred embodiment of the present invention, a flexible docking installation structure of an offshore wind turbine and an installation method thereof include an upper support member 10, and a lower support member 20 arranged at the bottom end of the upper support member 10, a first flange 30 is installed on the outer surface of the bottom end of the upper support member 10, and a second flange 40 is arranged on the outer surface of the top end of the lower support member 20, the first flange 30 and the second flange 40 are connected by a fixing assembly 50, and a guide assembly 60 is arranged outside the second flange 40;

[0041] The fixing assembly 50 includes a plurality of Tang's threaded rods 51 that sequentially penetrate the first flange 30 and the second flange 40 from top to bottom, and nut locking mechanisms 52 disposed at both ends of the Tang's threaded rods 51;

[0042] The guide assembly 60 includes a plurality of first guide grooves 61 disposed at the top end of the second flange edge 40, a second guide groove 63 disposed between two adjacent first guide grooves 61 and at the top end of the second flange edge 40, and a buffer mechanism 62 disposed between adjacent first guide grooves 61 and the second guide grooves 63. A first infrared rangefinder 64 is provided at one end of the first guide groove 61 away from the lower support member 20.

[0043] For details, please refer to the attached Figure 2 and 3 In another preferred embodiment of the present invention, the nut locking mechanism 52 includes a locking nut 521 meshingly connected with the outer surface of one end of the Tang threaded rod 51 from top to bottom, and a screw rod 522 passing through both ends of the locking nut 521;

[0044] It should be noted that, in this embodiment, the two ends of the Down's threaded rod 51 are locked by the locking nut 521, so as to improve the stability of the Down's threaded rod 51 when connecting the first flange edge 30 and the second flange edge 40, reduce the movement of the Down's threaded rod 51, and reduce the movement of the locking nut 521 by inserting the screw rod 522 at both ends of the Down's threaded rod 51.

[0045] For details, please refer to the attached Figure 4 , 7 and 8, in another preferred embodiment of the present invention, the buffer mechanism 62 includes a plurality of buffer cylinders 621 passing through the shell of the second flange edge 40, and a first vibration isolator 623 installed on the upper surface of the piston rod of the buffer cylinder 621, the buffer mechanism 62 also includes a second vibration isolator 625 provided between adjacent buffer cylinders 621, the second vibration isolator 625 passing through the shell of the second flange edge 40, the buffer mechanism 62 also includes a first excitation coil 622 provided on both sides of the buffer cylinder 621, and a second excitation coil 624 provided on both sides of the second vibration isolator 625, the first excitation coil 622 and the second excitation coil 624 are both passed through the shell of the second flange edge 40;

[0046] It should be noted that, in this embodiment, the first vibration isolator 623 is driven to abut against the lower surface of the first flange edge 30 by the extension and contraction of the piston rod of the buffer oil cylinder 621, thereby providing support for the first flange edge 30;

[0047] Furthermore, when the first flange edge 30 and the second flange edge 40 are in contact, the second vibration isolator 625 assists the first vibration isolator 623 in providing buffering for the first flange edge 30;

[0048] Furthermore, the magnetostrictive effect of the first isolator 623 on the piston rod is enhanced by the first excitation coil 622, and the magnetostrictive effect of the second isolator 625 is enhanced by the second excitation coil 624. Moreover, a stronger magnetic field can be generated by superimposing the magnetic fields of the first excitation coil 622 and the second excitation coil 624.

[0049] For details, please refer to the attached Figure 1 , 2 and 6, in another preferred embodiment of the present invention, a plurality of third guide grooves 31 corresponding to the buffer oil cylinder 621 are provided on the lower surface of the first flange edge 30, a second infrared rangefinder 32 is penetrated at one end of the third guide groove 31 away from the upper support member 10, a plurality of reinforcing beams 70 are installed on the surfaces of the first flange edge 30 and the second flange edge 40 away from each other, and the length of the diameter of the first flange edge 30 is less than the length of the diameter of the second flange edge 40;

[0050] It should be noted that, in this embodiment, the first vibration isolator 623 is inserted into the third guide groove 31, and the distance between the first vibration isolator 623 and the second infrared rangefinder 32 is used to measure the distance data, so that after the distance data is input to the control center of the crane ship through the network, it can assist the workers to adjust the position of the first flange edge 30;

[0051] Furthermore, the structural strength of the first flange 30 and the second flange 40 is improved by the reinforcing beam 70 . Since the diameter of the second flange 40 is longer than the diameter of the first flange 30 , the support strength of the second flange 40 on the first flange 30 is strengthened.

[0052] like Figure 1-8 As shown, according to the above embodiment, a method for installing a flexible docking installation structure of an offshore wind turbine is also provided, comprising the following steps:

[0053] Step 1: hang the lower support member 20 on the top of the lower tower of the wind turbine by a transport ship, and connect the lower support member 20 and the lower tower of the wind turbine by bolts;

[0054] Step 2: transport the upper support member 10 to the vicinity of the lower support member 20 installed in step 1 by a transport ship, and lift the upper support member 10 by a crane ship;

[0055] Step 3, the upper support member 10 is moved by a crane ship so that the Down's threaded rod 51 corresponds to the first guide groove 61 and the second guide groove 63 one by one, and the distance from the Down's threaded rod 51 is measured by the first infrared rangefinder 64 to obtain distance data;

[0056] Step 4: The control center of the crane vessel receives the distance data obtained in step 3 through the network, so that the workers can refer to the distance data and align the Tang's threaded rod 51 with the screw holes in the first guide groove 61 and the second guide groove 63;

[0057] Step 5: lower the upper support member 10 by means of a crane ship, and then rotate the Down's threaded rod 51 so that the Down's threaded rod 51 is inserted into the screw holes in the first guide groove 61 and the second guide groove 63, and the fan installation work is completed by inserting locking nuts 521 into both ends of the Down's threaded rod 51 and inserting screws 522 into both ends of the locking nuts 521;

[0058] Furthermore, in the step 5, when the upper support member 10 is lowered by the crane ship, the piston rod of the buffer cylinder 621 extends until it abuts against the lower surface of the first flange 30, and as the crane ship lowers the upper support member 10, the piston rod of the buffer cylinder 621 retracts to support the upper support member 10;

[0059] Furthermore, in step five, after the piston rod of the buffer cylinder 621 is fully retracted, the magnetostrictive effect of the first vibration isolator 623 on the piston rod is increased by the first excitation coil 622, and the magnetostrictive effect of the second vibration isolator 625 is increased by the second excitation coil 624 to adjust the overall stiffness of the second flange edge 40.

[0060] The specific operation mode of the present invention is as follows:

[0061] When installing the wind turbine, the lower support member 20 is suspended on the top of the lower tower of the wind turbine by a transport ship, and the lower support member 20 and the lower tower of the wind turbine are connected by bolts. The upper support member 10 is transported to the vicinity of the installed lower support member 20 by a transport ship, and the upper support member 10 is lifted by a crane ship;

[0062] The upper support member 10 is moved by the crane ship so that the Down's threaded rod 51 corresponds to the first guide groove 61 and the second guide groove 63 one by one, and the distance from the Down's threaded rod 51 is measured by the first infrared rangefinder 64 to obtain distance data. The control center of the crane ship receives the obtained distance data through the network for workers to refer to the distance data and align the Down's threaded rod 51 with the screw holes in the first guide groove 61 and the second guide groove 63;

[0063] The upper support member 10 is lowered by a crane ship, and then the Down's threaded rod 51 is rotated to insert the Down's threaded rod 51 into the screw holes in the first guide groove 61 and the second guide groove 63. The fan installation work is completed by inserting locking nuts 521 into both ends of the Down's threaded rod 51 and inserting screws 522 into both ends of the locking nuts 521.

[0064] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A flexible docking installation structure for an offshore wind turbine, comprising an upper support member (10), and a lower support member (20) arranged at the bottom end of the upper support member (10), characterized in that: A first flange (30) is installed on the outer surface of the bottom end of the upper support member (10), and a second flange (40) is installed on the outer surface of the top end of the lower support member (20); the first flange (30) and the second flange (40) are connected via a fixing assembly (50), and a guide assembly (60) is installed outside the second flange (40); The fixing assembly (50) comprises a plurality of Tang's threaded rods (51) which sequentially penetrate the first flange edge (30) and the second flange edge (40) from top to bottom, and nut locking mechanisms (52) provided at both ends of the Tang's threaded rods (51); The guide assembly (60) comprises a plurality of first guide grooves (61) arranged at the top end of the second flange edge (40), a second guide groove (63) arranged between two adjacent first guide grooves (61) and at the top end of the second flange edge (40), and a buffer mechanism (62) arranged between adjacent first guide grooves (61) and second guide grooves (63), and a first infrared rangefinder (64) is provided at one end of the first guide groove (61) away from the lower support member (20); The buffer mechanism (62) comprises a plurality of buffer oil cylinders (621) penetrating the housing of the second flange edge (40), and a first vibration isolator (623) mounted on the upper surface of the piston rod of the buffer oil cylinder (621); The buffer mechanism (62) further comprises a second vibration isolator (625) disposed between adjacent buffer cylinders (621), wherein the second vibration isolator (625) is penetrated on the shell of the second flange edge (40); The buffer mechanism (62) further comprises a first excitation coil (622) arranged on both sides of the buffer oil cylinder (621), and a second excitation coil (624) arranged on both sides of the second vibration isolator (625), wherein the first excitation coil (622) and the second excitation coil (624) are both passed through the shell of the second flange edge (40); A plurality of third guide grooves (31) corresponding to the buffer oil cylinder (621) are provided on the lower surface of the first flange edge (30), and a second infrared rangefinder (32) is penetrated at one end of the third guide groove (31) away from the upper support member (10).

2. The flexible docking installation structure of an offshore wind turbine according to claim 1, characterized in that: The nut locking mechanism (52) comprises a locking nut (521) meshedly connected with the outer surface of one end of the Tang threaded rod (51) from top to bottom, and a screw rod (522) passing through both ends of the locking nut (521).

3. The flexible docking installation structure of an offshore wind turbine according to claim 1, characterized in that: A plurality of reinforcing beams (70) are installed on surfaces of the first flange edge (30) and the second flange edge (40) that are away from each other, and the length of the diameter of the first flange edge (30) is smaller than the length of the diameter of the second flange edge (40).

4. The method for installing a flexible docking installation structure of an offshore wind turbine according to claim 1, characterized in that: The following steps are involved: Step 1: hang the lower support member (20) on the top of the lower tower of the wind turbine by a transport ship, and connect the lower support member (20) and the lower tower of the wind turbine by bolts; Step 2: transport the upper support member (10) to the vicinity of the lower support member (20) installed in step 1 by a transport ship, and lift the upper support member (10) by a crane ship; Step 3, using a crane ship to move the upper support member (10) so that the Down's threaded rod (51) corresponds to the first guide groove (61) and the second guide groove (63) one by one, and using a first infrared rangefinder (64) to measure the distance from the Down's threaded rod (51) to obtain distance data; Step 4: The control center of the crane vessel receives the distance data obtained in step 3 through the network, so that the worker can refer to the distance data and align the Tang's threaded rod (51) with the screw holes in the first guide groove (61) and the second guide groove (63); Step 5: Lower the upper support member (10) by means of a crane ship, and then rotate the Down's threaded rod (51) so that the Down's threaded rod (51) is inserted into the screw holes in the first guide groove (61) and the second guide groove (63). The fan installation work is completed by inserting locking nuts (521) into both ends of the Down's threaded rod (51) and inserting screws (522) into both ends of the locking nuts (521).

5. The method for installing a flexible docking installation structure of an offshore wind turbine according to claim 4, characterized in that: In step five, when the upper support member (10) is lowered by the crane ship, the piston rod of the buffer cylinder (621) extends until it abuts against the lower surface of the first flange edge (30), and as the crane ship lowers the upper support member (10), the piston rod of the buffer cylinder (621) retracts to support the upper support member (10).

6. The method for installing a flexible docking installation structure of an offshore wind turbine according to claim 5, characterized in that: In step five, after the piston rod of the buffer cylinder (621) is fully retracted, the magnetostrictive effect of the first vibration isolator (623) on the piston rod is increased by the first excitation coil (622), and the magnetostrictive effect of the second vibration isolator (625) is increased by the second excitation coil (624), so as to adjust the overall stiffness of the second flange edge (40).

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