Intelligent ship pile leg with pile washing function

Abstract

The invention discloses an intelligent ship pile leg with a pile washing function. The intelligent ship pile leg comprises a first pile, a second pile, a high-pressure water pump, a spray head, a sensor system and a controller. A hydraulic cylinder is arranged in the first pile, and the output end of the hydraulic cylinder is connected with the second pile. The high-pressure water pump is installed on the first pile and provided with a water circulation pipeline, one end of the water circulation pipeline is connected with a suction nozzle, a filter screen is arranged in the suction nozzle, the other end of the water circulation pipeline is connected with a spray head, and the spray head is installed on the first pile. A scraper used for cleaning the outer wall of the second pile is slidably mounted on the second pile, and a conical head is arranged at the bottom of the second pile. The sensor system is used for detecting seabed soil parameters, and the controller is used for controlling the hydraulic cylinder and adjusting the water flow pressure of the high-pressure water pump according to the parameters detected by the sensor system. Pile washing is conducted through the high-pressure water pump and the spray head, the pile leg insertion resistance is reduced, and pile leg insertion is smoother; the water flow pressure is adaptively adjusted through a sensor system and a controller to adapt to different underwater soil conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of ship pile legs, and in particular to an intelligent ship pile leg with a pile punching function. Background Art

[0002] In water projects, the insertion and removal of pile legs of self-elevating vessels or platforms is a key technical link to ensure operational stability. Traditional pile leg systems generally face three major technical difficulties: First, during the pile insertion process, the heterogeneity of the seabed soil (such as a mixture of clay, sand, and gravel) makes it difficult for conventional high-pressure pile driving systems to adaptively adjust the jet parameters. Existing technologies mostly use a single water jet mode with a fixed pressure (usually 20-30MPa), which has insufficient penetration in hard clay layers (repeated pile driving is required, resulting in an increase of more than 40% in energy consumption), and in soft sand layers, the water jet mode is not suitable for high-pressure pile driving. The layer is prone to excessive scouring, causing the pile legs to tilt; secondly, when the pile legs operate in a seawater environment for a long time, barnacles, algae and other organisms will densely adhere to the surface (the measured attachment thickness can reach 50mm in 6 months), resulting in a 30%-50% increase in resistance to subsequent plugging and unplugging operations; thirdly, the water filtration of existing pile driving systems mostly uses a bolt-fixed filter structure, which is easily clogged by tiny shell fragments (particle size <1mm) in turbid seawater. On average, the system needs to be shut down for disassembly and cleaning every 72 hours. The traditional disassembly method requires special tools and is time-consuming, seriously affecting work efficiency. In response to the above problems, it is urgent to develop a pile leg system that integrates intelligent pile driving, self-cleaning maintenance, and real-time monitoring, and to break through the existing technical bottlenecks through collaborative innovation between mechanical structures. Summary of the Invention

[0003] Purpose of the invention: In view of the shortcomings of existing pile legs that have fixed pile driving pressure, cannot adapt to different seabed soil types, and are easily attached to or infiltrated by debris on the surface and inside, the present invention provides an intelligent ship pile leg with pile driving function, which can adjust the pile driving pressure according to different seabed soil types and is easy to clean.

[0004] Technical solution: In order to solve the above problems, the present invention adopts an intelligent ship pile leg with a pile-punching function, including a No. 1 pile, a No. 2 pile, a high-pressure water pump, a nozzle, a sensor system and a controller; a hydraulic cylinder is provided inside the No. 1 pile, and the output end of the hydraulic cylinder is connected to the No. 2 pile; the high-pressure water pump is installed on the No. 1 pile, and a water flow pipeline is provided on the high-pressure water pump, one end of the water flow pipeline is connected to a suction nozzle, a filter is provided in the suction nozzle, and the other end of the water flow pipeline is connected to the nozzle, and the nozzle is installed on the No. 1 pile; a scraper for cleaning the outer wall of the No. 2 pile is slidably installed on the No. 2 pile, and a cone head is provided at the bottom of the No. 2 pile; the sensor system is used to detect seabed soil parameters, and the controller is used to control the hydraulic cylinder and adjust the water flow pressure of the high-pressure water pump according to the parameters detected by the sensor system.

[0005] Furthermore, the nozzle is annular and is arranged around the lower outer wall of pile No. 1.

[0006] Furthermore, the sensor system includes a fiber optic pressure sensor and an acoustic porosity detector installed at the bottom of pile No. 2. The fiber optic pressure sensor is used to detect the foundation reaction force of the soil, and the acoustic porosity detector is used to detect the density of the soil.

[0007] Furthermore, it also includes a monitoring system, which includes a vibration sensor, an inclination sensor, and a strain sensor; the vibration sensor is installed in pile No. 1 to monitor the working status of the hydraulic cylinder; the inclination sensor and the strain sensor are installed in pile No. 2, the inclination sensor is used to monitor the inclination angle of pile No. 2, and the strain sensor is used to monitor the bending stress of pile No. 2.

[0008] Furthermore, when the inclination sensor detects that the inclination angle of pile No. 2 exceeds the preset value, the controller presses and liquefies the soil in a specific area by adjusting the extension and contraction of the hydraulic cylinder and the water pressure of the high-pressure water pump to restore the inclination angle of pile No. 2 to within the preset value range.

[0009] Furthermore, a closed cavity is provided in the No. 1 pile, a turbine generator is installed in the cavity, and a water flow pipeline is connected to both sides of the cavity so that the water flowing through the water flow pipeline drives the turbine generator to generate electricity.

[0010] Furthermore, the scraper is annular and is arranged around the outer wall of pile No. 2. The scraper is wrapped with a neodymium magnet so as to be adsorbed on the outer wall of pile No. 2.

[0011] Furthermore, a guide slide is provided on the outer wall of pile No. 1, and a ring-shaped movable plate is also provided around the outer wall of pile No. 1. A groove matching the shape of the guide slide is provided on the inner side of the movable plate, and the guide slide is located in the groove; the movable plate is connected to the scraper through a connecting rod; the scraper is driven to move up and down on the outer wall of pile No. 2 by pushing and pulling the movable plate up and down.

[0012] Furthermore, the inner wall of the suction nozzle is provided with multiple slots, and the inside of the filter is provided with multiple cavities. A compression spring is installed in the cavity. One end of the compression spring is connected to an insert block, and a pull rope is also connected to the insert block. The tail ends of multiple pull ropes are gathered into a main rope; the insert block is pulled out of the slot by pulling the main rope.

[0013] Furthermore, the drawstring is made of ultra-high molecular weight polyethylene fiber braided rope, and the core of the drawstring is embedded with aramid tensile fiber.

[0014] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: (1) the pile is flushed by a high-pressure water pump and a nozzle, which reduces the insertion resistance of the pile legs and makes the insertion of the pile legs smoother; (2) the water flow pressure is adaptively adjusted by a sensor system and a controller to adapt to different underwater soil conditions; (3) a turbine generator is set inside the pile leg to make full use of the high-pressure water flow and realize energy recycling; (4) an integrated sliding scraper is set to facilitate the cleaning of the pile legs; (5) a detachable filter is set at the nozzle to prevent impurities from entering the water flow pipeline and causing blockage, and the filter is easy to disassemble and assemble and easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall structure of the pile leg of the present invention;

[0016] Figure 2 This is a schematic structural diagram of the pile leg of the present invention from another angle;

[0017] Figure 3 is a cross-sectional view of a pile leg of the present invention;

[0018] Figure 4 This is a schematic diagram of the scraper and guide structure of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the suction nozzle and filter screen of the present invention;

[0020] Figure 6 Schematic diagram of the internal structure of the filter screen of the present invention. DETAILED DESCRIPTION

[0021] like Figures 1 to 3 As shown in the figure, an intelligent ship pile leg with pile-driving function in this embodiment includes a No. 1 pile 2, a No. 2 pile 3, a high-pressure water pump 4, a nozzle 5, a sensor system, a monitoring system, and a controller. A hydraulic cylinder 8 is installed inside No. 1 pile 2. The output end 9 of the hydraulic cylinder 8 is connected to the No. 2 pile 3. The bottom of the No. 2 pile 3 is equipped with a cone head 14. The No. 1 pile 2 and the No. 2 pile 3 form the pile leg body 1. A closed cavity is provided at the top of the No. 1 pile 2, which houses a turbine generator 18.

[0022] The high-pressure water pump 4 is installed on the outer wall of pile No. 1 2, and water circulation pipes 6 are connected to the upper and lower sides of the high-pressure water pump 4. The upper water circulation pipe 6 passes through the closed cavity at the top of pile No. 1 2, and the end of the upper water circulation pipe 6 is connected to a suction nozzle 7. The lower water circulation pipe 6 is connected to the nozzle 5. The nozzle 5 is annular and is arranged around the lower outer wall of pile No. 1 2. High-pressure water is extracted and formed by the high-pressure water pump 4, and then sprayed out from the nozzle 5 after passing through the water circulation pipe 6. When the high-pressure water flows through the turbine, it drives the blades of the turbine generator 18 to rotate, driving the generator rotor to cut the magnetic flux lines to generate electricity. In addition, seawater is used to cool the high-pressure water pump to reduce the temperature rise of the system and thus reduce energy consumption.

[0023] like Figure 4 As shown, a guide slide 19 is provided on the outer wall of pile No. 1 2, and the axial direction of the guide slide 19 is parallel to the axial direction of the pile leg. The outer wall of pile No. 1 2 is also surrounded by an annular movable plate 21, and a groove matching the shape of the guide slide 19 is provided on the inner side of the movable plate 21, and the guide slide 19 is located in the groove. The movable plate 21 is connected to the scraper 22 through a connecting rod 23. The scraper 22 is annular and surrounds the outer wall of pile No. 2 3. The scraper 22 is wrapped with a neodymium magnet to be adsorbed on the outer wall of pile No. 2 3. The movable plate 21 is pushed and pulled up and down to drive the scraper 22 to move up and down on the outer wall of pile No. 2 3. The scraper 22 is made of high-hardness stainless steel, and the inner edge of the blade maintains a precise gap of 0.5-1mm with the surface of the pile leg. During the up and down scraping process, it can effectively remove biological attachments such as barnacles and algae, while avoiding damage to the anti-corrosion coating of the pile body.

[0024] The sensor system includes a fiber optic pressure sensor 15 and an acoustic porosity detector 17 installed at the bottom of pile 2 (3). The fiber optic pressure sensor 15 detects the soil's foundation reaction force, while the acoustic porosity detector 17 measures soil density. The monitoring system includes a vibration sensor 10, an inclination sensor 12, and a strain sensor 13. The vibration sensor 10 is installed in pile 1 (2) to monitor the operating status of the hydraulic cylinder 8. The inclination sensor 12 and strain sensor 13 are installed in pile 2 (3). The inclination sensor 12 monitors the inclination angle of pile 2 (3), while the strain sensor 13 monitors the bending stress of pile 2 (3). The monitoring system monitors the working status of the pile legs in real time to ensure their stability. A controller controls the hydraulic cylinder 8 and adjusts the water pressure of the high-pressure water pump 4 based on the parameters detected by the sensor system.

[0025] like Figure 5 and Figure 6 As shown, the inner wall of the suction nozzle 7 is provided with four equally spaced slots 25, and the interior of the filter screen 24 is provided with four cavities 26. A compression spring 29 is installed in each cavity 26. One end of the compression spring 29 is connected to an insert 27, and a pull rope 30 is also connected to the insert 27. The tail ends of the four pull ropes 30 converge at the center of the filter screen 24 to form a main rope. The compression spring 29 is made of 316 stainless steel, and the pull rope 30 is braided with ultra-high molecular weight polyethylene fiber. The core of the pull rope 30 is embedded with aramid tensile fiber. The pull rope uses a 12-strand braiding process and has a breaking strength of 800 kgf. In its natural state, the insert 27 is inserted into the slot 25 under the force of the compression spring 29, forming a mechanical self-locking mechanism, which firmly secures the filter screen 24 to the water inlet end of the suction nozzle 7. To remove the filter screen 24, pull the main rope to remove the insert 27 from the slot 25.

[0026] The present invention operates as follows: During pile insertion, the controller first controls the extension of the hydraulic cylinder 8, causing the cone 14 of pile No. 2 3 to extend and penetrate the waterbed. Soil quality data is then measured using a fiber optic pressure sensor 15 and an acoustic porosity detector 17. Based on this data, the controller adjusts the water pressure of the high-pressure water pump 4, spraying a circular high-pressure jet at the nozzle 5 to pressurize and liquefy the soil surrounding the cone 14, effectively reducing resistance during pile leg insertion. During the pile insertion process, the pile leg may tilt. When the tilt sensor 12 detects that the tilt angle of pile No. 2 3 exceeds a preset value, the controller adjusts the extension and retraction of the hydraulic cylinder 8 and the water pressure of the high-pressure water pump 4 to pressurize and liquefy the soil in a specific area, restoring the tilt angle of pile No. 2 3 to within the preset range. During pile extraction, the nozzle 5 continuously flushes the soil around the cone 14, disrupting the adhesion between the pile leg and the soil, preventing pile-soil adhesion and shortening extraction time. Once the pile leg is ashore, a scraper can be used to clean any marine life and debris attached to the leg.

Claims

1. An intelligent ship pile leg with pile punching function, characterized in that: The invention comprises a pile No. 1 (2), a pile No. 2 (3), a high-pressure water pump (4), a nozzle (5), a sensor system and a controller; a hydraulic cylinder (8) is provided inside the pile No. 1 (2), and an output end (9) of the hydraulic cylinder (8) is connected to the pile No. 2 (3); the high-pressure water pump (4) is installed on the pile No. 1 (2), a water flow pipeline (6) is provided on the high-pressure water pump (4), one end of the water flow pipeline (6) is connected to a suction nozzle (7), a filter screen (24) is provided in the suction nozzle (7), the other end of the water flow pipeline (6) is connected to the nozzle (5), and the nozzle (5) is installed on the pile No. 1 (2); a scraper (22) for cleaning the outer wall of the pile No. 2 (3) is slidably installed on the pile No. 2 (3), and a cone head (14) is provided at the bottom of the pile No. 2 (3); the sensor system is used to detect seabed soil parameters, and the controller is used to control the hydraulic cylinder (8) and adjust the water flow pressure of the high-pressure water pump (4) according to the parameters detected by the sensor system.

2. The intelligent ship pile leg with pile punching function according to claim 1, characterized in that: The nozzle (5) is annular and is arranged around the lower outer wall of pile No. 1 (2).

3. The intelligent ship pile leg with pile punching function according to claim 1, characterized in that: The sensor system comprises an optical fiber pressure sensor (15) and an acoustic porosity detector (17) installed at the inner bottom of the No. 2 pile (3). The optical fiber pressure sensor (15) is used to detect the foundation reaction force of the soil, and the acoustic porosity detector (17) is used to detect the density of the soil.

4. The intelligent ship pile leg with pile punching function according to claim 1, characterized in that: The invention also includes a monitoring system, which includes a vibration sensor (10), an inclination sensor (12), and a strain sensor (13); the vibration sensor (10) is installed in the No. 1 pile (2) and is used to monitor the working state of the hydraulic cylinder (8); the inclination sensor (12) and the strain sensor (13) are installed in the No. 2 pile (3); the inclination sensor (12) is used to monitor the inclination angle of the No. 2 pile (3), and the strain sensor (13) is used to monitor the bending stress of the No. 2 pile (3).

5. The intelligent ship pile leg with pile punching function according to claim 4, characterized in that: When the inclination sensor (12) detects that the inclination angle of the No. 2 pile (3) exceeds a preset value, the controller presses and liquefies the soil in a specific area by adjusting the expansion and contraction of the hydraulic cylinder (8) and the water flow pressure of the high-pressure water pump (4), so that the inclination angle of the No. 2 pile (3) is restored to within the preset value range.

6. The intelligent ship pile leg with pile punching function according to claim 1, characterized in that: A closed cavity is provided in the No. 1 pile (2), a turbine generator (18) is installed in the cavity, and a water flow pipeline (6) is connected to both sides of the cavity so that water flowing through the water flow pipeline (6) drives the turbine generator (18) to generate electricity.

7. The intelligent ship pile leg with pile punching function according to claim 1, characterized in that: The scraper (22) is annular and is arranged around the outer wall of the No. 2 pile (3). The scraper (22) is wrapped with a neodymium magnet so as to be adsorbed on the outer wall of the No. 2 pile (3).

8. The intelligent ship pile leg with pile punching function according to claim 7, characterized in that: The outer wall of the No. 1 pile (2) is provided with a guide slide (19), and the outer wall of the No. 1 pile (2) is also surrounded by an annular movable plate (21). The inner side of the movable plate (21) is provided with a groove matching the shape of the guide slide (19), and the guide slide (19) is located in the groove; the movable plate (21) is connected to the scraper (22) through a connecting rod (23); and the scraper (22) is driven to move up and down on the outer wall of the No. 2 pile (3) by pushing and pulling the movable plate (21) up and down.

9. The intelligent ship pile leg with pile punching function according to claim 1, characterized in that: The inner wall of the suction nozzle (7) is provided with a plurality of slots (25), the interior of the filter screen (24) is provided with a plurality of cavities (26), a compression spring (29) is installed in the cavity (26), one end of the compression spring (29) is connected to an insert block (27), and a pull rope (30) is also connected to the insert block (27), and the tail ends of the plurality of pull ropes (30) are gathered into a main rope; by pulling the main rope, the insert block (27) is pulled out of the slot (25).

10. The intelligent ship pile leg with pile punching function according to claim 9, characterized in that: The drawstring (30) is made of an ultra-high molecular weight polyethylene fiber braided rope, and the core of the drawstring (30) is embedded with aramid tensile fiber.

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