A grouting construction sealing device for offshore wind power jacket foundation

Abstract

The utility model relates to a kind of offshore wind power jacket foundation grouting construction sealing device, belong to offshore wind power construction technical field, to solve the technical problem that traditional rubber sealing ring is easily damaged, grouting leakage in offshore wind power jacket foundation grouting construction, leading to unreliable sealing effect;The utility model uses the air inflation sealing ring of initiative expansion, the sealing ring keeps dry state before grouting construction, greatly facilitates the installation of jacket, after installation is completed, it is expanded by filling grouting material, and then form tight sealing structure with steel pipe pile inner wall;At the same time, grouting pipeline adopts shunt setting, realizes the integrated operation of sealing and grouting, simplifies construction process;In addition, sealing ring inside integrated sensor, cooperate with automation control system to realize intelligent control, improve construction precision;The utility model effectively improves sealing effect and durability, reduces construction cost, enhances construction safety, with remarkable economic benefits and social benefits.

Description

Technical Field

[0001] This utility model relates to the field of offshore wind turbine jacket foundation grouting construction technology, and in particular to a sealing device for offshore wind turbine jacket foundation grouting construction. Background Technology

[0002] With the increasing global demand for renewable energy, offshore wind power, with its abundant wind resources and huge development potential, has become an important sector in the wind power construction field.

[0003] Offshore wind power foundations are a key component in the development of offshore wind power, and their design and construction technologies directly affect the safety and economy of wind power projects.

[0004] Among the various types of offshore wind power foundations, jacket foundations are widely used due to their ability to adapt to complex geological conditions, and their application rate will further increase as wind farms expand to offshore areas and regions with complex geological conditions.

[0005] During the construction of the jacket foundation, after the main structure of the jacket is inserted into the multi-pile foundation, the connection part needs to be grouted to ensure the integrity and stability of the structure.

[0006] In traditional jacket installation grouting processes, such as Figure 1 As shown, a traditional rubber sealing ring 11 is often used to form a bottom-sealed grouting connection section between the pile and the guide frame tip to prevent grout from leaking into the pile body, thus avoiding resource waste and construction quality problems.

[0007] However, due to the complex sea conditions and the difficulty of lifting and lowering the jacket structure by the crane vessel, the traditional rubber sealing ring 11 is very easy to be damaged during the installation process, which can lead to grout leakage.

[0008] Specifically, the limitations of traditional rubber sealing rings 11 in offshore construction are mainly reflected in the following aspects:

[0009] 1. Vulnerability of sealing rings: The marine environment is complex and changeable. Natural factors such as waves and tides, as well as the uncertainty of crane operation, make traditional rubber sealing rings 11 susceptible to damage from external forces such as compression and friction during installation.

[0010] 2. Risk of grout leakage: Once the sealing ring is damaged, the grout will leak directly into the pile body, which will not only waste materials, but may also affect the grouting quality and even threaten the overall stability of the jacket foundation.

[0011] 3. Difficulty in assessing sealing performance: The sealing performance of traditional sealing rings is often difficult to accurately assess before or during construction, which increases the uncertainty and risk of construction.

[0012] 4. High construction difficulty: Traditional sealing rings require high precision in offshore construction of jacket structures, and the corresponding requirements for vessels and sea conditions are also quite stringent, which undoubtedly increases the difficulty and cost of offshore jacket installation.

[0013] In summary, the passive traditional rubber sealing ring 11 used in the existing technology for jacket foundation grouting construction has many shortcomings and is difficult to meet the growing technical requirements of offshore wind power jacket foundation construction.

[0014] Therefore, developing a new type of sealing device for grouting construction of offshore wind turbine jacket foundations to solve the problems existing in the current technology has important practical significance and application value. Utility Model Content

[0015] The technical problem to be solved by this utility model is to provide a sealing device for grouting construction of offshore wind turbine jacket foundations, which solves the technical problem of grout leakage caused by the easy damage of traditional rubber sealing rings during the grouting construction of offshore wind turbine jacket foundations, as well as the technical limitation of unreliable sealing effect.

[0016] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0017] Specifically, this utility model installs a circular air-expanding sealing ring at the grouting sealing point of the guide frame. The sealing ring is made of high-strength, wear-resistant elastic material and has good anti-aging and sealing performance.

[0018] The sealing ring is connected to the grouting pipeline and expands by filling it with grout.

[0019] Before the construction of the jacket, the sealing ring is in a deflated state and is tightly attached to the grouting sealing area of ​​the jacket tip. This will not affect the installation of the jacket and will effectively prevent damage during the installation process.

[0020] After the guide frame is installed, grout is filled into the sealing ring through the grouting pipeline. Under pressure, the grout gradually fills the inside of the sealing ring, causing it to expand and form a tight sealing structure with the inner wall of the steel pipe pile.

[0021] This sealing structure not only effectively prevents grout from leaking into the pile body, but also withstands significant pressure, ensuring the smooth progress of the grouting process.

[0022] To further improve sealing performance and construction efficiency, this invention also optimizes the grouting pipeline design. The grouting pipeline is branched, with the main pipeline connecting to the sealing ring and the secondary pipeline leading to the grouting section. Once the sealing ring is full of grout, the grout automatically enters the grouting section from the secondary pipeline inlet, achieving integrated sealing and grouting operations. This design not only simplifies the construction process and reduces construction difficulty but also effectively avoids leakage and waste during the grouting process.

[0023] Furthermore, this invention integrates sensors and an automated control system within the sealing ring. The sensors monitor the expansion state of the sealing ring and the injection status of the grout in real time, transmitting the data to the automated control system. Based on the received data, the automated control system automatically adjusts the injection speed and pressure of the grout to ensure precise control of the construction process. Simultaneously, the automated control system also has an alarm function; when abnormal expansion of the sealing ring or abnormal injection of the grout occurs, it can promptly issue an alarm to remind construction personnel to take appropriate measures.

[0024] To further improve construction efficiency and quality, this utility model also provides a supporting construction process. Before construction, the guide frame, guide frame tips, and steel pipe piles are cleaned to ensure a tight fit between the sealing ring and the inner wall of the steel pipe pile. During construction, grouting operations are strictly performed according to the operating procedures to ensure uniform injection of grout and full expansion of the sealing ring. After construction, the sealing ring and grouting connection sections are inspected to ensure no grout leakage and that the construction quality meets the requirements.

[0025] The sealing device for grouting construction of offshore wind turbine jacket foundation provided by this utility model has the following beneficial effects:

[0026] 1. This utility model solves the technical problem of grout leakage caused by the easy breakage of traditional rubber sealing rings during the grouting construction of offshore wind turbine jacket foundations, and overcomes the technical limitation of unreliable sealing effect.

[0027] 2. The air-expanding sealing ring of this utility model effectively solves the problem that traditional rubber sealing rings are easily damaged in complex sea conditions and during the lifting and lowering process of crane ships.

[0028] 3. This utility model effectively solves the problem of grout leakage in the grouting construction of offshore wind power jacket foundation by adopting an air-expansion sealing ring and an optimized grouting pipeline design, and significantly improves the grouting quality.

[0029] 4. Through theoretical derivation and simulation experiments, the breakage rate of the air-expanding sealing ring of this utility model is significantly reduced during installation, and the grouting quality is significantly improved, providing a reliable technical guarantee for the grouting construction of offshore wind power jacket foundation.

[0030] 5. The improvement of the sealing ring in this utility model is that it is changed from the traditional passive rubber sealing ring to an active expansion air-expanding sealing ring, which improves the sealing effect and durability.

[0031] 6. The improvement of the grouting pipeline in this utility model adopts a branching setting, which realizes the integrated operation of sealing and grouting, and simplifies the construction process.

[0032] 7. This utility model effectively solves the technical problems of complex and inefficient traditional grouting construction process by setting up branch circuits and intelligent control, simplifies the construction process, reduces the input of manpower and material resources, lowers construction costs, and improves construction efficiency.

[0033] 8. This utility model achieves intelligent control of the construction process by integrating sensors and an automated control system, thereby improving the accuracy and efficiency of construction.

[0034] 9. The sensor and automated control system integrated inside the sealing ring of this utility model make the construction process more precise and controllable, and can monitor and adjust construction parameters in real time to ensure the smooth progress of the construction process.

[0035] 10. This utility model, through its active expansion design and intelligent control, effectively solves the technical limitations of traditional sealing rings, which are affected by various factors and are difficult to guarantee. It significantly improves the sealing effect and ensures the smooth progress of the grouting process.

[0036] 11. This utility model, through real-time monitoring and remote control, can promptly detect and address potential problems, thereby improving construction safety.

[0037] 12. The sealing device and intelligent control system of this utility model can adapt to the usage requirements of complex marine environments, and improve the reliability and durability of the equipment. This conclusion has been fully verified by actual construction results and theoretical derivation, ensuring the effectiveness of this utility model in improving construction safety, accelerating construction progress and saving costs. Attached Figure Description

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0039] Figure 1 This is a schematic diagram of the overall structure of a traditional seal;

[0040] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0041] Figure 3 This is a partially enlarged schematic diagram of the overall structure of this utility model;

[0042] In the diagram: 1. Sealing ring; 2. Guide frame tip; 3. Guide frame; 4. Steel pipe pile; 5. Grouting pipeline; 6. Main grouting port; 7. Secondary grouting port; 8. Main grouting line; 9. Secondary grouting line; 10. Automatic switching valve; 11. Traditional rubber sealing ring. Detailed Implementation

[0043] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments:

[0044] Example 1

[0045] like Figures 1 to 2 As shown in the figure, this embodiment provides a sealing device for grouting construction of offshore wind turbine jacket foundations, as detailed below:

[0046] 1. Sealing ring 1:

[0047] Materials: Made of special rubber or synthetic materials with high elasticity, wear resistance, corrosion resistance and pressure resistance to adapt to the complex and ever-changing marine environment, including high humidity, salt spray corrosion and possible mechanical wear;

[0048] Structure: It features a circular design with internally embedded reinforcing ribs evenly distributed along the circumference. These ribs can be made of metal wire or high-strength fiber material, designed to enhance the structural stability and pressure resistance of the sealing ring during expansion, preventing rupture or deformation due to excessive pressure.

[0049] Status: Before grouting, the sealing ring 1 is in a deflated state, and its outer diameter is slightly smaller than or equal to the maximum outer diameter of the guide frame tip 2, to ensure that it will not be damaged during the installation of the guide frame 3 and to facilitate tight attachment to the guide frame tip 2.

[0050] 2. Jacket 3 and steel pipe pile 4:

[0051] The guide frame 3 is designed with a mounting surface that matches the sealing ring 1, ensuring that the sealing ring 1 can be accurately installed on the guide frame 3 at the grouting sealing point of the guide frame tip 2 and form an effective seal;

[0052] Steel pipe pile 4: The inner wall is specially treated, such as by spraying a wear-resistant coating, to reduce the friction between the sealing ring 1 and the inner wall of the steel pipe pile 4 during expansion and contraction, and to extend the service life of the sealing ring 1.

[0053] 3. Grouting pipeline 5:

[0054] Branching setup: Includes grouting main line 8 and grouting secondary line 9, both connected to a common grouting source via a tee joint or similar branching device;

[0055] Main grouting port 6: Located on the main grouting line 8, it is connected to the sealing ring 1 via a quick connector. The quick connector has a self-locking function to ensure the sealing and stability of the connection during the grouting process.

[0056] Secondary grouting port 7: Located on the secondary grouting line 9, it directly connects the space between the guide frame 3 and the steel pipe pile 4, and is used for grouting the main structure after the sealing ring 1 is filled.

[0057] 4. Working principle:

[0058] (1) Installation preparation:

[0059] Before installing the jacket support 3, attach the deflated sealing ring 1 to the designated position on the jacket support 3 to ensure ease of installation and the integrity of the sealing ring 1.

[0060] (2) Installation of the guide frame 3:

[0061] The catheter holder 3 is installed according to the conventional process. Since the sealing ring 1 is in a deflated state, its outer diameter is less than or equal to the maximum outer diameter of the catheter holder tip 2, so it will not be damaged during the installation process.

[0062] (3) Grouting operation:

[0063] After the guide frame 3 is installed, start the grouting equipment and fill the sealing ring 1 with grouting material through the grouting main line 8 and the main grouting port 6;

[0064] As the grout is continuously injected, the sealing ring 1 gradually expands and fits tightly against the inner wall of the steel pipe pile 4, forming an effective sealing structure.

[0065] Once the grouting material in the sealing ring 1 is filled, the main grouting line 8 is closed by the automatic switching valve, and the secondary grouting line 9 is opened. Grouting material is then injected from the secondary grouting port 7 into the space between the guide frame 3 and the steel pipe pile 4 to carry out the grouting operation of the main structure.

[0066] (4) Construction monitoring and adjustment:

[0067] During the grouting process, the expansion status of sealing ring 1 and the injection of grout should be checked regularly to ensure construction quality.

[0068] If insufficient expansion of sealing ring 1 or abnormal injection of grout is found, adjust the grouting parameters or take remedial measures in a timely manner.

[0069] (5) Construction completed:

[0070] After the main structure grouting is completed, stop the grouting operation and wait for the grout to cure;

[0071] Inspect the sealing ring 1 and the grouting connection section to ensure there is no grout leakage and that the construction quality meets the requirements.

[0072] Example 2

[0073] In another preferred embodiment, based on Embodiment 1 above, this embodiment provides a sealing device for grouting construction of offshore wind turbine jacket foundations, with added intelligent monitoring, as detailed below:

[0074] 1. Sealing ring 1:

[0075] Materials and Structure: Same as in Example 1, made of special rubber or synthetic materials with high elasticity, wear resistance, corrosion resistance and pressure resistance, with a ring-shaped design and internal reinforcing ribs;

[0076] Intelligent integration: The sealing ring 1 integrates pressure sensors and displacement sensors. These sensors can monitor the pressure changes inside the sealing ring and the contact status with the inner wall of the steel pipe pile 4 in real time. The sensors are connected to the external control system through wireless or wired communication.

[0077] 2. Jacket 3 and steel pipe pile 4:

[0078] The guide frame 3 is designed with a mounting surface that matches the sealing ring 1 and may be equipped with a raised structure that matches the positioning groove on the sealing ring 1 to ensure that the sealing ring 1 is accurately installed on the guide frame 3 at the grouting sealing point of the guide frame tip 2 and forms an effective seal.

[0079] Steel pipe pile 4: The inner wall is coated with a wear-resistant coating to reduce friction with the sealing ring 1; at the same time, the steel pipe pile 4 may also be equipped with monitoring equipment connected to a remote monitoring and operating system to assist in monitoring the grouting process.

[0080] 3. Grouting pipeline 5:

[0081] Branching setup: Includes grouting main line 8 and grouting secondary line 9, both connected to a common grouting source via a tee connector;

[0082] Main grouting port 6: Located on the main grouting line 8, it is connected to the sealing ring 1 via a quick connector. The quick connector has a self-locking function.

[0083] Secondary grouting inlet 7: Located on the secondary grouting line 9, connecting the space between the guide frame 3 and the steel pipe pile 4;

[0084] Flow control valve: A first flow control valve is installed on the main grouting line 8 to regulate the flow rate of grout filling into the sealing ring 1; a second flow control valve is installed on the secondary grouting line 9 to regulate the flow rate of grouting for the main structure.

[0085] 4. Control system:

[0086] Data reception: Receives real-time data from the pressure sensor and displacement sensor inside the sealing ring 1;

[0087] Analysis and processing: The received data is analyzed and processed to determine the expansion state of sealing ring 1 and the injection status of grouting material;

[0088] Control and Adjustment: Based on the analysis results, the opening of the first flow control valve and the second flow control valve are automatically adjusted to adjust the injection volume and speed of the grouting material, ensuring that the sealing ring 1 is always in the optimal expansion state and optimizing the grouting process of the main structure.

[0089] 5. Remote monitoring and operating system:

[0090] Real-time transmission: It can transmit various data during the construction process in real time, including the expansion status of the sealing ring, the amount of grout injected, pressure changes, etc.

[0091] Remote monitoring: Enables construction personnel to remotely monitor the construction status, including viewing real-time data, historical records, and alarm information;

[0092] Adjusting parameters: Construction personnel can adjust construction parameters in a timely manner based on data from remote monitoring, such as the injection speed and pressure of the grouting material.

[0093] 6. Working principle:

[0094] (1) Installation and preparation:

[0095] Before installing the jacket 3, attach the sealing ring 1, which integrates pressure and displacement sensors, to the designated position of the jacket tip 2.

[0096] Connect grouting pipeline 5 and ensure that all valves and sensors are in normal working order;

[0097] Start the remote monitoring and operating system to perform device self-test and communication test.

[0098] (2) Installation of the guide frame 3:

[0099] The guide frame 3 was installed according to standard procedures. During the installation, the remote monitoring and operating system continuously monitored the status of the sealing ring 1 to ensure that there were no abnormalities.

[0100] (3) Grouting operation and intelligent monitoring:

[0101] After the guide frame 3 is installed, start the grouting equipment and fill the sealing ring 1 with grouting material through the grouting main line 8 and the main grouting port 6;

[0102] Pressure and displacement sensors monitor the pressure changes inside the sealing ring 1 and its contact status with the steel pipe pile 4 in real time, and transmit the data to the control system.

[0103] The control system automatically adjusts the opening of the first flow control valve based on the monitoring data to control the injection volume and speed of the grouting material, ensuring that the sealing ring 1 expands uniformly and forms an effective seal;

[0104] Once the grouting material in sealing ring 1 is filled, the control system automatically or manually switches to grouting sub-line 9 to begin grouting operations for the main structure, while continuing to monitor and adjust the opening of the second flow control valve.

[0105] (4) Construction monitoring and emergency response:

[0106] The remote monitoring and operating system displays construction data in real time, including the expansion status of the sealing ring, the amount of grout injected, and pressure changes.

[0107] When an abnormal situation is detected (such as excessively high or low pressure, or abnormal displacement), the system will automatically issue an alarm and prompt the construction personnel to take corresponding emergency measures, such as stopping grouting, adjusting valve opening, or checking equipment.

[0108] (5) Construction completion and post-construction inspection:

[0109] After the main structure grouting is completed, stop the grouting operation and wait for the grout to cure;

[0110] Post-construction inspections were conducted on sealing ring 1 and the grouting connection section, including sealing tests and pressure monitoring, to ensure that the construction quality met the requirements.

[0111] Organize construction records and data to provide reference and guidance for subsequent construction.

[0112] Example 3

[0113] In another preferred embodiment, based on embodiments 1 and 2 above, this embodiment provides a highly efficient and automated sealing device for grouting construction of offshore wind turbine jacket foundations, as detailed below:

[0114] 1. Sealing ring 1:

[0115] Materials and Structure: Made of highly elastic, high-strength, and corrosion-resistant composite materials, with internal reinforcing ribs to ensure good sealing performance and structural stability under high pressure;

[0116] Adaptive design: The outer wall of the sealing ring 1 is designed with an adaptive corrugated structure, which can achieve a tight fit on the inner wall of the steel pipe pile 4 with different diameters, thereby improving the sealing effect;

[0117] Quick inflation / filling interface: The sealing ring 1 is equipped with a dedicated quick inflation / filling interface. The interface is designed with a self-locking function to ensure that no leakage occurs during the inflation / filling process.

[0118] 2. Jacket 3 and steel pipe pile 4:

[0119] The guide frame 3 is designed with an installation groove that matches the sealing ring 1, which is used to quickly and accurately position the sealing ring 1, accurately install it on the guide frame 3, and form an effective seal at the grouting sealing point of the guide frame tip 2.

[0120] Steel pipe pile 4: The inner wall is polished to reduce frictional resistance with the sealing ring 1. At the same time, the top of the steel pipe pile 4 is equipped with a grouting port and an air vent to facilitate grouting operations and air discharge.

[0121] 3. Grouting pipeline system:

[0122] Automated grouting pipeline 5: includes main grouting pipeline 8 and secondary grouting pipeline 9, both of which are connected to the grouting pump via intelligent diversion valve;

[0123] Intelligent diversion valve: It can automatically control the flow direction of grouting material according to a preset program. First, it fills the sealing ring 1 with grouting material. After the sealing ring 1 expands, it automatically switches to grouting the main structure.

[0124] Flow and pressure control module: Integrated on the grouting pump, it can monitor and adjust the flow and pressure of the grouting material in real time to ensure the stability and safety of the grouting process.

[0125] 4. Automated control system:

[0126] PLC (Programmable Controllers) controller: As the core control unit, it is responsible for receiving signals from various sensors and controlling the operation of equipment such as grouting pumps and intelligent diversion valves according to preset programs;

[0127] Sensor network: including pressure sensors, displacement sensors, flow sensors, etc., to monitor key parameters such as the expansion state of sealing ring 1, flow rate and pressure of grout in real time;

[0128] Human Machine Interface (HMI): Provides an intuitive operating interface, enabling construction personnel to easily set grouting parameters, monitor construction status, and manually intervene when necessary.

[0129] 5. Auxiliary equipment:

[0130] High-pressure cleaner: used to clean steel pipe piles 4, guide pipe inserts 2, and guide pipe supports 3 before grouting operations to ensure the cleanliness of the construction surface;

[0131] Drying equipment: Used to dry the construction surface after cleaning to prevent moisture from affecting the curing effect of the grout;

[0132] Safety protection devices, including safety fences and warning lights, ensure safety during construction.

[0133] 6. Working principle:

[0134] (1) Construction preparation:

[0135] Use a high-pressure cleaner to clean the steel pipe pile 4, the guide frame tip 2 and the guide frame 3 to ensure that the construction surface is free of debris and oil.

[0136] Use drying equipment to dry the construction surface to prevent moisture residue;

[0137] Install the sealing ring 1 into the sealing groove of the guide tube tip 2 on the guide tube frame 3 and fix it securely;

[0138] Connect the grouting pipeline system and ensure that all valves and sensors are in normal working order;

[0139] Start the automated control system to perform equipment self-tests and communication tests.

[0140] (2) Grouting operation:

[0141] Under the control of the PLC controller, the grouting pump starts to work and fills the sealing ring 1 with grout through the main grouting pipeline 8;

[0142] The sensor network monitors the expansion state of the sealing ring 1 and parameters such as the flow rate and pressure of the grout in real time, and transmits the data to the PLC controller.

[0143] When the sealing ring 1 expands to the preset size, the PLC controller automatically controls the intelligent diversion valve to switch to the secondary grouting pipeline 9 and start the grouting of the main structure.

[0144] During the grouting process of the main structure, the PLC controller continues to monitor the flow rate and pressure of the grouting material and makes adjustments as needed.

[0145] (3) Construction monitoring and adjustment:

[0146] Construction data, including the expansion status of the sealing ring, the flow rate of the grout, and pressure, are displayed in real time through a human-machine interface (HMI).

[0147] Construction personnel can adjust construction parameters in a timely manner based on monitoring data, such as the injection speed and pressure of grouting material;

[0148] When an abnormal situation is detected, the PLC controller will automatically issue an alarm and prompt the construction personnel to take appropriate emergency measures.

[0149] (4) Construction completion and post-construction inspection:

[0150] After the main structure grouting is completed, stop the grouting operation and wait for the grout to cure;

[0151] Post-construction inspections were conducted on sealing ring 1 and the grouting connection section, including sealing tests and pressure monitoring, to ensure that the construction quality met the requirements.

[0152] Organize construction records and data to provide reference and guidance for subsequent construction.

[0153] A sealing device for grouting construction of offshore wind turbine jacket foundation includes a sealing ring 1, which is installed on the jacket 3 at the grouting sealing point of the jacket tip 2 and placed between the jacket 3 and the steel pipe pile 4. Grout is filled into the sealing ring 1 through a grouting pipeline 5, causing it to expand and form a sealing structure between the jacket tip 2 and the steel pipe pile 4. The grouting pipeline 5 is branched, with a main grouting port 6 and a secondary grouting port 7 on the branch. The main grouting port 6 connects to the sealing ring 1, and the secondary grouting port 7 connects to the space between the jacket 3 and the steel pipe pile 4.

[0154] In the preferred embodiment, the sealing ring 1 is an air-expanding type, made of wear-resistant, corrosion-resistant, and pressure-resistant elastic material to meet the usage requirements of complex marine environments. The above settings ensure that the sealing ring 1 can maintain good sealing performance under long-term seawater erosion and high-pressure environments, effectively preventing media leakage and improving the safety and reliability of the overall equipment.

[0155] In a preferred embodiment, the sealing ring 1 is a circular ring structure, which is in a deflated state before grouting and is attached to the guide frame 3 to facilitate the installation of the guide frame 3 and to prevent damage during installation. The circular ring structure of the sealing ring 1 has reinforcing ribs evenly distributed along its circumference to enhance its structural stability and compressive strength during expansion. These features ensure that the sealing ring 1 fits tightly against the guide frame 3 and surrounding structures after grouting, effectively preventing grout leakage. Simultaneously, the reinforcing rib design also improves the durability of the sealing ring 1, extends the service life of the equipment, and reduces maintenance costs.

[0156] In a preferred embodiment, when the sealing ring 1 is deflated, its outer diameter is less than or equal to the outer diameter of the guide frame tip 2, ensuring that it will not be damaged during the installation of the guide frame 3. The above settings not only ensure the smooth installation of the sealing ring 1, but also allow the sealing ring 1 to fit tightly against the guide frame 3 and the surrounding structure after being inflated or expanded by water, effectively preventing leakage and improving the sealing performance and safety of the overall structure.

[0157] In a preferred embodiment, the grouting pipeline 5 is configured with branch lines, including a main grouting line 8 and a secondary grouting line 9. The main grouting line 8 is equipped with a main grouting port 6, and the secondary grouting line 9 is equipped with a secondary grouting port 7. The main grouting port 6 is used to fill the sealing ring 1 with grout, and the secondary grouting port 7 is used to grout the main structure between the guide frame 3 and the steel pipe pile 4 after the sealing ring 1 has been filled. An automatic switching valve 10 is installed between the main grouting line 8 and the secondary grouting line 9. When the sealing ring 1 is full of grout, the automatic switching valve 10 automatically closes the main grouting line 8 and opens the secondary grouting line 9 to start the grouting operation of the main structure between the guide frame 3 and the steel pipe pile 4. The above configuration ensures the continuity and efficiency of the grouting operation, reduces the tediousness of manual operation, and improves the grouting quality and construction efficiency. At the same time, the design of the automatic switching valve 10 effectively avoids the waste of grout and reduces construction costs.

[0158] In a preferred embodiment, a first flow control valve is installed on the main grouting line of the grouting pipeline 5, and a one-way valve is installed at the connection between the main grouting port 6 and the sealing ring 1 to ensure that the grout can only flow into the sealing ring 1 in one direction and prevent the grout from flowing back. The above settings not only improve the controllability and efficiency of the grouting process, but also effectively avoid grout leakage, ensure the grouting quality and sealing performance of the sealing ring 1, and further enhance the safety and stability of the entire structure.

[0159] In a preferred embodiment, the connection between the main grouting port 6 of the grouting pipeline 5 and the sealing ring 1 is made using a quick-connect coupling. This quick-connect coupling has a self-locking function to ensure the sealing and stability of the connection during grouting. This design effectively avoids grout leakage during the grouting process, improving the efficiency and safety of the grouting operation. Simultaneously, the self-locking design of the quick-connect coupling simplifies the installation and disassembly process, facilitating later maintenance and replacement.

[0160] In a preferred embodiment, a second flow control valve is installed on the grouting secondary line of the grouting pipeline 5. The flow control valve is used to regulate the flow rate of the grouting material to ensure the uniformity and stability of the grouting process. The above configuration effectively avoids the problem of uneven flow or sudden interruption that may occur during the grouting process, and improves the efficiency and quality of the grouting operation. At the same time, the embodiment is also equipped with a pressure monitoring device to monitor the pipeline pressure in real time and ensure the safe operation of the grouting operation.

[0161] In a preferred embodiment, the inner wall of the steel pipe pile 4 is provided with a wear-resistant coating at the contact area between the sealing ring 1 and the inner wall of the steel pipe pile 4 after expansion. The wear-resistant coating is used to reduce the friction between the sealing ring 1 and the inner wall of the steel pipe pile 4 during expansion and contraction, thereby extending the service life of the sealing ring 1. The above arrangement effectively improves the sealing effect and wear resistance between the sealing ring 1 and the inner wall of the steel pipe pile 4, ensuring the long-term stability and safety of the structure, while reducing the maintenance costs caused by friction wear.

[0162] In a preferred embodiment, the sealing ring 1 integrates a pressure sensor and a displacement sensor to monitor pressure changes inside the sealing ring 1 and its contact status with the steel pipe pile 3 in real time. The pressure sensor and displacement sensor are connected to the control system, which in turn is connected to the first flow control valve and the second flow control valve to adjust the injection volume and speed of the grouting material, ensuring that the sealing ring 1 is always in the optimal expansion state. This configuration not only improves the intelligence level of the grouting operation but also effectively avoids sealing failure caused by uneven grouting, enhances the connection strength and stability between the steel pipe pile 3 and the foundation, and provides a solid guarantee for the safety and quality of the project.

[0163] In a preferred embodiment, a positioning groove is provided at the connection between the sealing ring 1 and the guide frame 3. The positioning groove matches the protruding structure on the sealing ring 1 to ensure the accurate position and fixed stability of the sealing ring 1 during installation. The above configuration effectively prevents the sealing ring 1 from shifting or falling off during use, and enhances the sealing performance and operational safety of the entire device. At the same time, this design simplifies the installation process and improves assembly efficiency.

[0164] In a preferred embodiment, the sealing device further includes a remote monitoring and operating system. This system can transmit various data during the construction process in real time, including the expansion state of the sealing ring, the injection volume of grout, and pressure changes, enabling construction personnel to remotely monitor the construction status and adjust construction parameters in a timely manner. These features ensure the accuracy and safety of the construction process. Simultaneously, the system has an early warning function; when abnormal data is detected, it immediately notifies the construction team, effectively preventing construction accidents and significantly improving project quality and construction efficiency.

[0165] In a preferred embodiment, the remote monitoring and operating system also includes an early warning mechanism. When an anomaly is detected, it automatically issues an alarm and takes corresponding emergency measures. These features ensure that the system can respond to potential risks in a timely manner, effectively avoiding or mitigating the impact of malfunctions. Simultaneously, the system can record abnormal data, providing valuable information for subsequent analysis and optimization.

[0166] In the preferred embodiment, the sealing device is integrated with other offshore wind power construction equipment to form a complete offshore wind power jacket foundation grouting construction system, realizing the integration, automation and intelligence of grouting construction. The above settings not only improve construction efficiency, but also significantly reduce the error risk caused by human operation, ensure the construction quality and safety of offshore wind power projects, and promote the development of the offshore wind power industry towards a more efficient and reliable direction.

[0167] In a preferred embodiment, the integrated system also includes an optimized construction process, which significantly shortens the construction cycle and reduces labor costs by improving the collaborative operation capabilities between equipment. The above settings are also combined with an intelligent monitoring system to monitor the construction progress and quality in real time, promptly identify and resolve problems, further improve project efficiency and safety, and ensure that the project can be completed on time and with high quality.

[0168] In summary, this utility model provides a sealing device for grouting construction of offshore wind turbine jacket foundations. This device effectively solves the technical problem of grout leakage caused by easy damage to traditional rubber sealing rings during the grouting construction of offshore wind turbine jacket foundations, and overcomes the technical limitation of unreliable sealing effect.

[0169] This invention innovatively employs an actively expanding air-inflating sealing ring 1, which contrasts sharply with the traditional passive rubber sealing ring. This design keeps the sealing ring 1 in a deflated state before grouting, greatly facilitating the installation of the guide frame 3. After installation, it expands by filling with grout, forming a stable sealing structure, thus effectively avoiding the problem of easy breakage of the traditional sealing ring 1 during installation.

[0170] The design of the grouting pipeline 5 also reflects the ingenuity of this utility model. It adopts a branching arrangement, including a main pipeline and a secondary pipeline. The main pipeline is connected to the sealing ring 1, and the secondary pipeline leads to the grouting section. This design allows the main grouting to begin automatically after the grouting material in the sealing ring 1 is filled, realizing the integrated operation of sealing and grouting, and significantly simplifying the construction process.

[0171] In addition, the pressure sensor and displacement sensor integrated inside the sealing ring 1 can monitor the pressure changes inside the sealing ring 1 and the contact status with the steel pipe pile in real time, making the construction process more precise and controllable, and enabling potential problems to be detected and dealt with in a timely manner.

[0172] This invention is also equipped with a remote monitoring and operating system, which can transmit various data during the construction process in real time, enabling construction personnel to remotely monitor the construction status and adjust construction parameters in a timely manner. This system significantly improves the level of intelligence in construction and effectively reduces labor costs.

[0173] To address the problem of grout leakage and easy breakage of traditional rubber sealing rings during grouting of offshore wind turbine jacket foundations, this invention proposes a novel solution. By employing an active expansion sealing ring 1 and a branched grouting pipeline 5, this invention effectively solves this technical challenge, significantly improving grouting quality and construction efficiency.

[0174] The sealing mechanism of this invention is innovative. It expands the sealing ring 1 by filling it with grout, thereby forming a tight seal between the jacket 3 and the steel pipe pile 4. This sealing mechanism not only provides a good seal but also meets the requirements of use in complex marine environments.

[0175] By integrating sensors and an automated control system, this invention achieves intelligent control of the construction process. The sensors monitor the construction status in real time, while the automated control system automatically adjusts construction parameters based on the monitoring data, ensuring the smooth progress of the construction process. This intelligent construction control method significantly improves the accuracy and efficiency of construction.

[0176] Finally, this invention integrates the sealing device with other offshore wind power construction equipment to form a complete offshore wind power jacket foundation grouting construction system. This integrated construction system significantly improves the collaborative operation capability between equipment, greatly shortens the construction cycle, reduces labor costs, and realizes the integration, automation, and intelligence of grouting construction.

Claims

1. A sealing device for grouting construction of offshore wind turbine jacket foundations, characterized in that, Includes a sealing ring (1), which is installed on the guide frame tip (2) of the guide frame (3) at the grouting sealing point, and is placed between the guide frame (3) and the steel pipe pile (4). Grouting material is filled into the sealing ring (1) through the grouting pipeline (5) to make it expand and form a sealing structure between the guide frame tip (2) and the steel pipe pile (4). The grouting pipeline (5) is set in a branch line, with a main grouting port (6) and a secondary grouting port (7) on the branch line. The main grouting port (6) is connected to the sealing ring (1), and the secondary grouting port (7) is connected to the space between the guide frame (3) and the steel pipe pile (4).

2. The sealing device for grouting construction of offshore wind turbine jacket foundation as described in claim 1, characterized in that: The sealing ring (1) is an air-expanding type, made of wear-resistant, corrosion-resistant, and pressure-resistant elastic material to meet the requirements of use in complex marine environments.

3. The sealing device for grouting construction of offshore wind turbine jacket foundation as described in claim 2, characterized in that: The sealing ring (1) is a circular ring structure. It is in a shrunken state before grouting and is attached to the guide frame (3) to facilitate the installation of the guide frame (3) and to prevent damage during installation. The circular ring structure of the sealing ring (1) is provided with reinforcing ribs, which are evenly distributed along the circumference of the sealing ring (1) to enhance the structural stability and compressive strength of the sealing ring (1) during expansion.

4. The sealing device for grouting construction of offshore wind turbine jacket foundation as described in claim 3, characterized in that: When the sealing ring (1) is in a deflated state, its outer diameter is less than or equal to the maximum outer diameter of the catheter holder tip (2), ensuring that it will not be damaged during the installation of the catheter holder (3).

5. A sealing device for grouting construction of offshore wind turbine jacket foundation as described in claim 4, characterized in that: The grouting pipeline (5) is set up in a branch configuration, including a main grouting line (8) and a secondary grouting line (9). The main grouting line (8) is equipped with a main grouting port (6), and the secondary grouting line (9) is equipped with a secondary grouting port (7). The main grouting port (6) is used to fill the sealing ring (1) with grouting material. The secondary grouting port (7) is used to grout the main structure between the guide frame (3) and the steel pipe pile (4) after the sealing ring (1) is filled. An automatic switching valve (10) is set between the main grouting line (8) and the secondary grouting line (9). When the grouting material in the sealing ring (1) is filled, the automatic switching valve (10) automatically closes the main grouting line (8) and opens the secondary grouting line (9) to start the grouting operation of the main structure between the guide frame (3) and the steel pipe pile (4).

6. A sealing device for grouting construction of offshore wind turbine jacket foundation as described in claim 5, characterized in that: The grouting pipeline (5) is equipped with a first flow control valve on the main grouting line and a one-way valve is provided at the connection between the main grouting port (6) and the sealing ring (1) to ensure that the grouting material can only flow into the sealing ring (1) in one direction and prevent the grouting material from flowing back.

7. A sealing device for grouting construction of offshore wind turbine jacket foundations according to claim 6, characterized in that: The connection between the main grouting port (6) of the grouting pipeline (5) and the sealing ring (1) is made by a quick connector. The quick connector has a self-locking function to ensure the sealing and stability of the connection during the grouting process.

8. A sealing device for grouting construction of offshore wind turbine jacket foundations according to claim 7, characterized in that: The grouting pipeline (5) is equipped with a second flow control valve on the grouting secondary line. The flow control valve is used to adjust the flow rate of the grouting material to ensure the uniformity and stability of the grouting process.

9. A sealing device for grouting construction of offshore wind turbine jacket foundation as described in claim 8, characterized in that: The inner wall of the steel pipe pile (4) and the contact area between the sealing ring (1) after expansion are provided with a wear-resistant coating. The wear-resistant coating is used to reduce the friction between the sealing ring (1) and the inner wall of the steel pipe pile (4) during expansion and contraction, and to extend the service life of the sealing ring (1).

10. A sealing device for grouting construction of offshore wind turbine jacket foundation according to claim 9, characterized in that: The sealing ring (1) integrates a pressure sensor and a displacement sensor to monitor the pressure changes inside the sealing ring (1) and the contact status with the steel pipe pile (3) in real time. The pressure sensor and the displacement sensor are connected to the control system, which is connected to the first flow control valve and the second flow control valve to adjust the injection volume and speed of the grouting material to ensure that the sealing ring (1) is always in the optimal expansion state.

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