Offshore wind power pile type jacket foundation dismantling device

Abstract

The utility model relates to the technical field of offshore wind power engineering, and provides an offshore wind power pile type jacket foundation dismantling device which can comprise a sealing cover, a piston part, a water injection device, a clamping device and a lifting device. The sealing cover covers the end, away from the mud surface, of the foundation pile and is provided with a water injection opening which communicates with the interior of the foundation pile. The piston part is located in the foundation pile, is matched with the interior of the foundation pile and can slide in the extending direction of the foundation pile. The water injection device communicates with the water injection opening and can inject water into the foundation pile. The clamping device is used for clamping a foundation pile; and the lifting device is connected with the clamping device. According to the offshore wind power pile type jacket foundation dismantling device provided by the embodiment of the invention, the foundation pile can be well dismantled.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power engineering, and in particular to a device for removing a foundation of an offshore wind power pile-type conductor frame. Background Art

[0002] Offshore wind power will continue to grow rapidly for a long time in the future. However, the current design life of offshore wind farms is 25 years, which means that a large number of offshore wind farms will be retired in the future, and the retired wind farms will face problems such as demolition.

[0003] The removal of offshore wind turbines is not much different from their installation, and the key components can be removed one by one by an offshore wind turbine installation ship. However, for the foundation piles, since the pile hammer and other devices are driven into the seabed by force during the construction phase, the foundation soil around the piles may weaken or strengthen (depending on the geological conditions) after long-term cyclic loads, and the pile hammer can only solve the installation problem. How to remove the offshore wind power foundation in the future, especially how to remove the part below the seabed surface, will be an urgent problem to be solved. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides an offshore wind power pile-type jacket foundation removal device.

[0005] The present application discloses a device for dismantling the foundation of an offshore wind power pile-type conductor frame, which may include: a sealing cover sealing the end of the foundation pile away from the mud surface, the sealing cover being provided with a water injection port, the water injection port being connected to the interior of the foundation pile; a piston portion being located inside the foundation pile and being adapted inside the foundation pile and being able to slide along the extension direction of the foundation pile; a water injection device being connected to the water injection port and being able to inject water into the interior of the foundation pile; a clamping device being used for clamping the foundation pile; and a lifting device being connected to the clamping device.

[0006] In this way, when the foundation pile needs to be dismantled, the piston part is first placed inside the foundation pile, and then the sealing cover is set at the end of the foundation pile away from the mud surface. The water injection device injects water into the interior of the foundation pile through the water injection port to increase pressure, so that the piston part moves toward the bottom of the foundation pile. When the foundation pile contacts the soil at the bottom of the foundation pile, water injection and pressure are continued to apply a downward thrust to the piston part. The piston part pushes the soil, causing the foundation pile to generate an upward pulling force, which cooperates with the pulling force of the lifting device to pull the foundation pile out of the seabed. In this way, all the basic structures below the seabed can be dismantled at one time, avoiding safety risks to navigation or other marine operations caused by underwater structures.

[0007] In some embodiments of the present application, the sealing cover is connected to the foundation pile by welding.

[0008] In some embodiments of the present application, the clamping device is provided with a water injection pipe, the water injection pipe is passed through the water injection port and is sealedly connected to the water injection port, the water injection device is connected to the water injection pipe and can inject water into the water injection pipe.

[0009] In some embodiments of the present application, the water injection pipe is connected to the sealing cover by welding.

[0010] In some embodiments of the present application, the water injection device includes a water guide tube extending into the water injection pipe.

[0011] In some embodiments of the present application, the offshore wind power pile-type jacket foundation removal device further includes: an on-water mobile device, a lifting device disposed on the on-water mobile device, and a water injection device disposed on the on-water mobile device.

[0012] In some embodiments of the present application, the diameter of the water injection port is greater than or equal to 40 cm and less than or equal to 50 cm.

[0013] In some embodiments of the present application, the cross-sectional shape of the piston portion is formed into a circular shape and is adapted to the inner shape of the foundation pile.

[0014] In some embodiments of the present application, the piston portion is sealedly connected to the inside of the pile.

[0015] In some embodiments of the present application, the clamping device includes a plurality of clamping claws, and the clamping claws are used to clamp the side wall of the foundation pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A schematic diagram of an offshore wind power pile-type jacket foundation removal device provided in some embodiments of the present application;

[0019] Figure 2 for Figure 1 Schematic diagram of the sealing cover shown in .

[0020] Reference numerals:

[0021] 100. Removal device;

[0022] 110. Sealing cover; 111. Water filling port;

[0023] 120, piston part;

[0024] 131. Water diversion conduit;

[0025] 140. Clamping device; 141. Water injection pipe; 142. Clamping claw;

[0026] 150. Lifting device;

[0027] 160. Water mobile device. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0029] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present application, such as "inside", "outside", etc., are only references to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0031] In the prior art, based on the experience of the offshore oil and gas / bridge industries and considering the requirements for navigation, the part below the mud surface is usually cut by cutting piles. For example, the existing underwater silt removal device cleans the soil around the foundation piles 3m below the mud surface, and then divers cut piles underwater 3m below the mud surface. The whole process is cumbersome and time-consuming, and divers have a high risk of long-term underwater operations.

[0032] To solve the above technical problems, please refer to Figure 1 and Figure 2The present application provides an offshore wind power pile-type jacket foundation dismantling device 100 applied to a hollow foundation pile 200. The dismantling device 100 may include: a sealing cover 110, a piston part 120, a water injection device, a clamping device 140 and a lifting device 150.

[0033] The sealing cover 110 is sealed on the end of the foundation pile 200 away from the mud surface (for example Figure 1 The sealing cover 110 is provided with a water injection port 111, and the water injection port 111 is communicated with the interior of the pile 200. The piston portion 120 is located inside the pile 200 and is adapted inside the pile 200, and can be extended along the extension direction of the pile 200 (for example Figure 1 The water injection device is connected to the water injection port 111 and can inject water into the foundation pile 200; the clamping device 140 is used to clamp the foundation pile 200, and the lifting device 150 is connected to the clamping device 140 and is used to lift the clamping device 140, thereby applying tension to the foundation pile 200.

[0034] In this way, when the pile 200 needs to be dismantled, the piston part 120 is first placed inside the pile 200, and then the sealing cover 110 is set at the end of the pile 200 away from the mud surface. The water injection device injects water and pressurizes the inside of the pile 200 through the water injection port 111, so that the piston part 120 moves toward the bottom of the pile 200. When the pile 200 abuts against the soil at the bottom of the pile 200, the water injection and pressurization are continued to apply a downward thrust to the piston part 120. The piston part 120 pushes the soil, causing the pile 200 to generate an upward pulling force, which cooperates with the pulling force of the lifting device 150 to pull the pile 200 out of the seabed. In this way, all the basic structures below the seabed can be dismantled at one time, avoiding navigation or other marine operation safety risks to underwater structures.

[0035] In some embodiments of the present application, the sealing cover 110 is welded to the pile foundation 200. Since the water pressure is relatively high during the water injection and pressurization process, the welding connection can ensure the stability of the connection between the sealing cover 110 and the pile foundation 200 while ensuring the sealing between the sealing cover 110 and the pile foundation 200.

[0036] In this way, during the process of dismantling the foundation pile 200 , the sealing cover 110 needs to be placed at a preset position first, and then the sealing cover 110 and the foundation pile 200 are connected and sealed by welding.

[0037] In some embodiments of this application, please continue to refer to Figure 1The clamping device 140 is provided on the water injection pipe 141, the water injection pipe 141 is passed through the water injection port 111, and is sealed and connected to the water injection port 111. The water injection device is communicated with the water injection pipe 141, and can inject water into the water injection pipe 141. It should be noted that in the process of the clamping device 140 clamping the foundation pile 200, the clamping device 140 is directly opposite to the foundation pile 200, and the water injection pipe 141 can penetrate the clamping device 140 and extend along the axial direction of the clamping device 140 (for example, Figure 1 ) and is connected to the water injection port 111. In this way, the integrity of the removal device 100 can be improved.

[0038] The water injection pipe 141 and the water injection port 111 may be connected by welding, and the water injection pipe 141 and the sealing cover 110 may be integrally formed.

[0039] In some embodiments of this application, please continue to refer to Figure 1 The water injection device may include a water guide conduit 131, which extends into the water injection pipe 141, thereby achieving conduction between the water injection device and the water injection pipe 141, wherein the water guide conduit 131 may be a hose, which may better adapt to different usage environments and is easy to store and unfold.

[0040] In some embodiments of this application, please continue to refer to Figure 1 The dismantling device 100 may further include a water mobile device 160, which may be a ship. The lifting device 150 is disposed on the water mobile device 160, and the water injection device is disposed on the water mobile device 160. Through the water mobile device 160, the dismantling device 100 can be moved at sea.

[0041] In some embodiments of the present application, the diameter of the water injection port 111 is greater than or equal to 40 cm and less than or equal to 50 cm. In the specific implementation process, the diameter of the water injection port 111 can be set to 40 cm, 42 cm, 44 cm, 46 cm, 48 cm and 50 cm, etc.

[0042] In this way, by setting the diameter of the water injection port 111 to be greater than or equal to 40 cm and less than or equal to 50 cm, the water injection port 111 can meet the requirements of the water guide tube 131 to extend therein, while reducing the size of the water injection port 111 that connects the inside of the pile 200 with the outside world, thereby better ensuring the sealing of the inside of the pile 200 and making the demolition device 100 have a better effect of water injection and pressurization.

[0043] In some embodiments of the present application, the cross-sectional shape of the piston portion 120 is formed into a circular shape and is adapted to the internal shape of the pile foundation 200. Specifically, the pile foundation 200 is generally formed into a hollow tube, and the internal space of the pile foundation 200 is formed into a cylinder. The cross-sectional shape of the piston portion 120 is formed into a circular shape and is adapted to the internal space of the pile foundation 200. The adaptation means that the piston portion 120 will not rotate in the internal space of the pile foundation 200, thereby ensuring the effect of water injection and pressurization of the demolition device 100.

[0044] Among them, the thickness of the piston part 120 can be greater than or equal to 50 mm. In the specific implementation process, the thickness of the piston part 120 can be set to 50 cm, 52 cm, 54 cm, 56 cm, 58 cm and 60 cm, etc. In this way, the piston part 120 can be prevented from rotating during the water injection and pressurization process, which can affect the water injection and pressurization effect of the demolition device 100.

[0045] In a specific implementation process, the piston part 120 can be sealed and connected to the inside of the pile 200 to better ensure that the piston part 120 squeezes the soil at the bottom of the pile 200 during movement, thereby ensuring that the pile 200 generates an upward pulling force.

[0046] In some embodiments of this application, please continue to refer to Figure 1 The clamping device 140 may include a plurality of clamping jaws 142, and the clamping jaws 142 are used to clamp the side wall of the foundation pile 200. It should be noted that the foundation pile 200 is generally formed into a hollow column. By providing a plurality of clamping jaws 142, it can be ensured that the foundation pile 200 remains balanced during the process of pulling out the foundation pile 200.

[0047] Specifically, the number of the clamping jaws 142 may be three, and the three clamping jaws 142 are evenly spaced and distributed in the circumferential direction.

[0048] It should be noted that, in this article, relational terms such as "first" and "second" 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0049] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An offshore wind power pile-type jacket foundation removal device, applied to hollow foundation piles, characterized in that: include: A sealing cover, the sealing cover is sealed on the end of the foundation pile away from the mud surface, the sealing cover is provided with a water injection port, and the water injection port is communicated with the interior of the foundation pile; A piston part, the piston part is located inside the foundation pile and is adapted inside the foundation pile and can slide along the extension direction of the foundation pile; A water injection device, the water injection device is connected to the water injection port and can inject water into the foundation pile; A clamping device, the clamping device is used to clamp the foundation pile; A lifting device is connected to the clamping device.

2. The offshore wind power pile-type jacket foundation removal device according to claim 1 is characterized in that: The sealing cover is connected to the foundation pile by welding.

3. The offshore wind power pile-type jacket foundation removal device according to claim 1 is characterized in that: The clamping device is provided with a water injection pipe, the water injection pipe is passed through the water injection port and is sealedly connected to the water injection port, the water injection device is communicated with the water injection pipe and can inject water into the water injection pipe.

4. The offshore wind power pile-type jacket foundation removal device according to claim 3 is characterized in that: The water injection pipe is connected to the sealing cover by welding.

5. The offshore wind power pile-type jacket foundation removal device according to claim 3 is characterized in that: The water injection device comprises a water guide tube, and the water guide tube extends into the water injection pipe.

6. The offshore wind power pile-type jacket foundation removal device according to claim 1, characterized in that: Also includes: A water-borne mobile device, wherein the lifting device is arranged on the water-borne mobile device, and the water injection device is arranged on the water-borne mobile device.

7. The offshore wind power pile-type jacket foundation removal device according to claim 1, characterized in that: The diameter of the water injection port is greater than or equal to 40 cm and less than or equal to 50 cm.

8. The offshore wind power pile-type jacket foundation removal device according to claim 1, characterized in that: The cross-sectional shape of the piston portion is formed into a circular shape and is adapted to the inner shape of the foundation pile.

9. The offshore wind power pile-type jacket foundation removal device according to claim 1, characterized in that: The piston part is sealed and connected to the inside of the foundation pile.

10. The offshore wind power pile-type jacket foundation removal device according to claim 1, characterized in that: The clamping device comprises a plurality of clamping claws, and the clamping claws are used for clamping the side wall of the foundation pile.

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