Self-elevating wind power installation platform

Abstract

The utility model relates to the technical field of auxiliary equipment of wind power installation equipment, and discloses a self-elevating wind power installation platform which comprises a pile leg and a pile shoe, the pile shoe is located at the bottom of the pile leg, a piston cylinder is arranged at the top of the pile shoe, a piston is arranged in the pile shoe in a matched mode, and a piston rod is connected to the top of the piston and penetrates through the top wall of the piston cylinder to extend out of the piston cylinder. The connecting rod is fixedly connected with the pile leg; the piston cylinder is divided into an upper cavity and a lower cavity by the piston, liquid inlets and liquid outlets are formed in the upper cavity and the lower cavity, a plurality of nozzles are arranged at the upper end and the lower end of the pile shoe, the liquid outlet in the lower cavity is communicated with the nozzle at the lower end of the pile shoe, the liquid outlet in the upper cavity is communicated with the nozzle at the upper end of the pile shoe, and one-way valves are arranged in the liquid inlets and the nozzles. Under the action of the piston, water in the upper cavity or the lower cavity of the piston cylinder is squeezed out to impact silt, the resistance of inserting and pulling out the pile shoe is reduced, the pile shoe is easier to insert and pull out, the load of a lifting mechanism is reduced, and the service life of a motor of the lifting mechanism is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power installation auxiliary equipment, in particular to a self-elevating wind power installation platform. Background Art

[0002] Offshore wind power is an important field for the development of renewable energy, an important force to promote the advancement of wind power technology and industrial upgrading, and an important measure to promote the adjustment of energy structure. China is rich in offshore wind energy resources. Accelerating the construction of offshore wind power projects is of great significance to promoting the control of atmospheric haze in coastal areas, adjusting energy structure and transforming the mode of economic development. The self-elevating wind power installation platform is an indispensable mechanical equipment for the transportation and installation of offshore wind power equipment. It is mainly composed of several parts such as hull, lifting equipment and pile legs. The lifting equipment is set on the hull deck. There are usually four pile legs, which are set at the four corners of the hull, and are equipped with a drive device for driving the pile legs to rise and fall. When installing offshore wind turbines, the installation ship will sail to the operating sea area, lower four pile legs through the drive device in the construction area, insert them into the silt layer on the seabed, and lift the installation ship above the sea surface. At this time, the installation ship forms a stable lifting operation platform. Subsequently, the crane on the deck lifts the wind turbine tower, main engine and blades to start assembly.

[0003] In the prior art, in order to ensure that the pile legs are firmly supported, pile shoes are usually provided at the bottom of the pile legs of the self-elevating wind power installation platform. When the pile legs are lowered, the pile shoes are inserted into the seabed so that the seabed buries the pile shoes, thereby increasing the stability of the pile legs. However, when the pile shoes are inserted into or pulled out of the seabed, the resistance is relatively large, which will increase the load of the pile leg lifting mechanism and easily cause damage to the motor of the lifting mechanism. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is to overcome the technical defects in the prior art that pile shoes are not easy to insert and pull out, which may cause damage to the motor of the lifting mechanism, and provide a self-elevating wind power installation platform.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a self-elevating wind power installation platform, including pile legs and pile shoes, the pile shoes are located at the bottom of the pile legs, the top of the pile shoes is provided with a piston cylinder, and a piston is provided inside, the top of the piston is connected with a piston rod, the piston rod passes through the top wall of the piston cylinder and extends to its outside, and is fixedly connected to the pile legs; the piston divides the piston cylinder into an upper chamber and a lower chamber, and the upper and lower chambers are both provided with a liquid inlet and a liquid outlet, and the upper and lower ends of the pile shoe are provided with a plurality of nozzles, the liquid outlet in the lower chamber is connected to the nozzle at the lower end of the pile shoe, the liquid outlet in the upper chamber is connected to the nozzle at the upper end of the pile shoe, and the liquid inlets in the upper and lower chambers are both extended to the top of the pile shoe, and a one-way valve is provided in the liquid inlet and the nozzle.

[0008] Furthermore, the pile shoe is a structure with pointed ends and a thick middle, which includes a bottom pointed cone and a top cone, and is integrally formed. The piston cylinder is arranged at the center of the top surface of the top cone, the nozzle at the lower end of the pile shoe is arranged on the side of the bottom pointed cone, the nozzle at the upper end of the pile shoe is arranged on the side of the top cone, and the liquid inlet is arranged on the top surface of the top cone.

[0009] Furthermore, a protective cover shell is provided on the top of the pile shoe, and the bottom of the protective cover shell is fixedly connected to the top plane of the top cone.

[0010] Furthermore, the pile legs include a plurality of supporting legs arranged in parallel, and a connecting component located between adjacent supporting legs. A lifting sleeve is provided on the inner wall of the protective cover shell corresponding to the supporting legs, and the bottom end of the supporting leg is slidably arranged in the lifting sleeve.

[0011] Furthermore, a limit block is provided on the inner wall at the top of the lifting sleeve, and a limit slide groove is provided on the side wall of the supporting leg. The upper and lower ends of the limit slide groove are sealed, and the limit block matches the limit slide groove and slides up and down along it.

[0012] Furthermore, a filter net is provided inside the protective cover shell to intercept floating seabed sludge.

[0013] Furthermore, there are multiple nozzles at the upper and lower ends of the pile shoe, and they are evenly distributed around the pile shoe.

[0014] 3. Beneficial Effects

[0015] Compared with the prior art, the utility model has the following advantages: when the pile shoe is inserted into the seabed, the water in the lower chamber of the piston cylinder is squeezed out by the action of the piston, and is sprayed out from the nozzle at the bottom of the pile shoe, impacting the mud and sand to lift it up, thus facilitating the insertion of the pile shoe, and the pile shoe can be buried as the mud and sand fall and settle, thereby firmly fixing the pile shoe; when taking it out, the water in the upper chamber of the piston cylinder is squeezed out by the action of the piston, and is sprayed out from the nozzle at the top of the pile shoe, impacting the mud and sand above to make it float up, thereby reducing the resistance to pulling out the pile leg; the insertion and pulling out of the pile leg is more labor-saving, the load of the lifting mechanism is reduced, and the service life of the lifting mechanism motor is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a self-elevating wind power installation platform.

[0017] Figure 2 The utility model is an exploded view of a self-elevating wind power installation platform.

[0018] Figure 3 It is a perspective view of a pile shoe of a self-elevating wind power installation platform of the utility model.

[0019] Figure 4 The utility model is a schematic diagram of the longitudinal section structure of a self-elevating wind power installation platform.

[0020] Figure 5 The utility model is a structural schematic diagram of a piston cylinder of a self-elevating wind power installation platform.

[0021] As shown in the figure: 1. Pile leg; 2. Pile shoe; 3. Piston cylinder; 4. Piston; 5. Piston rod; 6. Liquid inlet; 7. Liquid outlet; 8. Nozzle; 9. Bottom cone; 10. Top frustum; 11. Protective cover shell; 12. Support leg; 13. Lifting sleeve; 14. Limit block; 15. Limit slide; 16. Filter; 17. One-way valve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Embodiment 1, in combination with the attached Figure 1 , 3 , 4, 5.

[0024] A self-elevating wind power installation platform comprises a pile leg 1 and a pile shoe 2, the pile shoe 2 is located at the bottom of the pile leg 1, a piston cylinder 3 is provided on the top of the pile shoe 2, a piston 4 is provided inside, a piston rod 5 is connected to the top of the piston 4, the piston rod 5 passes through the top wall of the piston cylinder 3 and extends to the outside thereof, and is fixedly connected to the pile leg 1, a connecting frame is fixedly provided on the top of the piston rod 5, and is fixed to the pile leg 1 through the connecting frame; the piston 4 divides the piston cylinder 3 into an upper chamber and a lower chamber, and a liquid inlet 6 and a liquid outlet 7 are provided in the upper and lower chambers, a plurality of nozzles 8 are provided at the upper and lower ends of the pile shoe 2, a channel is provided in the pile shoe 2, so that the liquid outlet 7 in the lower chamber is connected to the nozzle 8 at the lower end of the pile shoe 2, the liquid outlet 7 in the upper chamber is connected to the nozzle 8 at the upper end of the pile shoe 2, and the liquid inlets 6 in the upper and lower chambers extend to the top of the pile shoe 2, and a one-way valve 17 is provided in the liquid inlet 6 and the nozzle 8.

[0025] The pile shoe 2 is a structure with pointed ends and a thick middle, and includes a bottom pointed cone 9 and a top cone 10, and is integrally formed. The piston cylinder 3 is arranged at the center of the top surface of the top cone 10, the nozzle 8 at the lower end of the pile shoe 2 is arranged on the side of the bottom pointed cone 9, the nozzle 8 at the upper end of the pile shoe 2 is arranged on the side of the top cone 10, and the liquid inlet 6 is arranged on the top surface of the top cone 10.

[0026] It is worth noting that the flow direction of the one-way valve 17 in the liquid inlet 6 is from outside to inside, and the flow direction of the one-way valve 17 in the nozzle 8 is from inside to outside.

[0027] Through the above structure, when the pile leg 1 is lowered, the bottom end of the pile shoe 2 first contacts the seabed. If the pile leg 1 is further lowered, the piston rod 5 pushes the piston 4 downward to squeeze out the water in the lower chamber and spray it out from the nozzle 8 at the lower end of the pile shoe 2, impacting the mud and sand on the seabed below, so that the mud and sand are lifted up, which is convenient for the pile shoe 2 to move downward and insert into the seabed. As the mud and sand fall and settle, the pile shoe 2 can be covered to increase its stability and prevent the pile leg 1 from being unstable due to the flow of seawater. When the pile leg is lifted, the pile shoe 2 will not be lifted immediately under the gravity of the pile shoe 2 itself and the pressure of the mud and sand. Therefore, the piston rod 5 drives the piston 4 upward to squeeze out the water in the upper chamber and spray it out from the nozzle 8 at the upper end of the pile shoe 2, impacting the mud and sand pressed on the pile shoe 2, so that the pile shoe 2 is easier to be pulled out; during the downward movement of the piston 4, the volume of the upper chamber increases and the pressure decreases, so that the external seawater is sucked into the upper chamber; during the upward movement of the piston rod 5, the lower chamber is easy to increase and the pressure decreases, so that the external seawater is sucked into the lower chamber.

[0028] Embodiment 2, combined with the attached Figure 1 , 2 .

[0029] A protective cover shell 11 is provided on the top of the pile shoe 2 , and the bottom of the protective cover shell 11 is fixedly connected to the top plane of the top truncated cone 10 .

[0030] The pile leg 1 includes a plurality of support legs 12 arranged in parallel and a connecting component located between adjacent support legs 12 . A lifting sleeve 13 is provided on the inner wall of the protective cover shell 11 corresponding to the support legs 12 , and the bottom end of the support leg 12 is slidably arranged in the lifting sleeve 13 .

[0031] A limit block 14 is provided on the inner wall of the top end of the lifting sleeve 13, and a limit slide groove 15 is provided on the side wall of the supporting leg 12. The limit slide groove 15 is sealed at both ends, and the limit block 14 matches the limit slide groove 15 and slides up and down along it.

[0032] Through the above structure, the protective cover shell 11 can play a certain role in intercepting mud and sand, reducing the entry of mud and sand into it, and play a role in fixing the lifting sleeve 13. Through the anti-slip limit of the limit block 14 and the limit slide groove 15 on the lifting sleeve 13, it plays a certain connecting and supporting role. When lifting the pile leg, it can share part of the gravity of the pile shoe 2, reduce the tension that the piston rod 5 has to bear, and avoid the breakage of the piston rod 5.

[0033] Embodiment 3, in combination with the attached Figure 1 , 2 .

[0034] A filter screen 16 is provided inside the protective cover shell 11 to intercept floating seabed sludge.

[0035] There are multiple nozzles 8 at the upper and lower ends of the pile shoe 2, and they are evenly distributed around the pile shoe 2.

[0036] Through the above structure, the filter screen 16 intercepts the silt, so that the seawater entering the liquid inlet 6 is free of silt impurities, avoiding clogging of the one-way valve, and the nozzles 8 are evenly distributed, making it convenient to flush out the silt.

[0037] During the specific implementation of the utility model, when the pile leg 1 is lowered, the bottom end of the pile shoe 2 contacts the seabed, and then the pile leg 1 continues to be lowered. The pile leg 1 pushes the piston rod 5 downward, and then pushes the piston 4 downward, squeezes out the water in the lower chamber, and sprays it from the nozzle 8 at the lower end of the pile shoe 2, impacting the mud and sand on the seabed below, so that the mud and sand are lifted up, which makes it convenient to insert the pile shoe 2 into the seabed. As the mud and sand fall and settle, the pile shoe 2 is buried, thereby increasing its stability; when the pile leg 1 is lifted, the pile shoe 2 still stays in the seabed for a certain period of time. During this process, the pile leg 1 drives the piston rod 5 to lift, drives the piston 4 to move upward, squeezes out the water in the upper chamber, and sprays it from the nozzle 8 at the upper end of the pile shoe 2, impacting the mud and sand pressed on the pile shoe 2, so that the pile shoe 2 is easier to be pulled out.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0040] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A self-elevating wind power installation platform, comprising a pile leg (1) and a pile shoe (2), wherein the pile shoe (2) is located at the bottom of the pile leg (1), and is characterized in that: The top of the pile shoe (2) is provided with a piston cylinder (3), and a piston (4) is provided inside. The top of the piston (4) is connected with a piston rod (5). The piston rod (5) passes through the top wall of the piston cylinder (3) and extends to the outside thereof, and is fixedly connected to the pile leg (1); The piston (4) divides the piston cylinder (3) into an upper chamber and a lower chamber, and both the upper and lower chambers are provided with a liquid inlet (6) and a liquid outlet (7). The upper and lower ends of the pile shoe (2) are provided with a plurality of nozzles (8). The liquid outlet (7) in the lower chamber is connected to the nozzle (8) at the lower end of the pile shoe (2), and the liquid outlet (7) in the upper chamber is connected to the nozzle (8) at the upper end of the pile shoe (2). The liquid inlets (6) in the upper and lower chambers extend to the top of the pile shoe (2), and one-way valves (17) are provided in the liquid inlet (6) and the nozzle (8).

2. A self-elevating wind power installation platform according to claim 1, characterized in that: The pile shoe (2) is a structure with pointed ends and a thick middle, and comprises a bottom pointed cone (9) and a top truncated cone (10), and is integrally formed. The piston cylinder (3) is arranged at the center of the top surface of the top truncated cone (10), the nozzle (8) at the lower end of the pile shoe (2) is arranged on the side of the bottom pointed cone (9), the nozzle (8) at the upper end of the pile shoe (2) is arranged on the side of the top truncated cone (10), and the liquid inlet (6) is arranged on the top surface of the top truncated cone (10).

3. A self-elevating wind power installation platform according to claim 2, characterized in that: A protective cover shell (11) is provided on the top of the pile shoe (2), and the bottom of the protective cover shell (11) is fixedly connected to the top plane of the top truncated cone (10).

4. A self-elevating wind power installation platform according to claim 3, characterized in that: The pile leg (1) comprises a plurality of support legs (12) arranged in parallel, and a connecting component located between adjacent support legs (12); a lifting sleeve (13) is provided on the inner wall of the protective cover shell (11) corresponding to the support leg (12); and the bottom end of the support leg (12) is slidably arranged in the lifting sleeve (13).

5. A self-elevating wind power installation platform according to claim 4, characterized in that: A limit block (14) is provided on the inner wall of the top end of the lifting sleeve (13), and a limit slide groove (15) is provided on the side wall of the supporting leg (12). The limit slide groove (15) is sealed at both ends, and the limit block (14) matches the limit slide groove (15) and slides up and down along it.

6. A self-elevating wind power installation platform according to claim 3, characterized in that: A filter screen (16) is provided inside the protective cover shell (11) for intercepting floating seabed sludge.

7. The self-elevating wind power installation platform according to claim 1, characterized in that: A plurality of nozzles (8) are provided at the upper and lower ends of the pile shoe (2), and are evenly distributed around the pile shoe (2).

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