Pile driving nozzle control valve, pile driving system, jack-up offshore platform and pile driving method

Abstract

The application belongs to the technical field of offshore platforms, and discloses a pile driving nozzle control valve, a pile driving system, a self-elevating offshore platform and a pile driving method. The pile driving nozzle control valve comprises a valve body, a channel for fluid passing through is arranged in the valve body, a valve core is arranged in the channel, a driving mechanism is arranged and used for driving the valve core to rotate, an inlet pressure detector is arranged and used for detecting the pressure at the inlet of the valve body, an outlet pressure detector is arranged and used for detecting the pressure at the outlet of the valve body, a displacement detector is arranged and used for detecting the position of the valve core, a wireless communication module is arranged, and a processor is arranged and electrically connected with the driving mechanism, the inlet pressure detector, the outlet pressure detector, the displacement detector and the wireless communication module, used for receiving and processing detection information and controlling the driving mechanism, and the wireless communication module is used for wireless communication between the processor and the control system of the self-elevating offshore platform. The pile driving nozzle control valve can save energy and reduce consumption, and the pile driving efficiency and adaptability of the platform are improved.

Description

Technical Field

[0001] This application relates to the field of offshore platform technology, specifically to a pile driving nozzle control valve, a pile driving system, a self-elevating offshore platform, and a pile driving method. Background Technology

[0002] Jack-up offshore platforms are key equipment in offshore wind power installation, oil drilling, and other fields. They achieve stable anchoring by inserting pile shoes at the ends of their legs into the seabed. After the jack-up platform completes its work, the pile shoes need to be removed from the seabed for platform relocation. Because a strong adhesion force exists between the pile shoes and the seabed soil, directly pulling out the piles would encounter significant resistance and could even damage the equipment. Therefore, jack-up platforms are equipped with a pile-driving system, which sprays high-pressure water or air around the pile shoes to disrupt the soil structure, reduce adhesion force, and thus lower the resistance to pile extraction.

[0003] Currently, traditional pile driving nozzles are mostly open-type structures. During the platform pile driving process, impurities such as seabed silt and clay can easily enter the pile driving pipe and gradually solidify over time, leading to system blockage and failure. For example, once the pile driving system becomes blocked and fails, the pile extraction time may be extended to more than 24 hours, which not only significantly reduces work efficiency but also damages the pile leg structure and poses safety hazards.

[0004] However, existing pile driving systems typically use passive valves for nozzle control, which have several drawbacks: passive valves can only perform simple open or close functions and cannot precisely adjust flow and pressure according to actual resistance requirements; passive valves have a fixed response threshold and cannot adapt to complex and varied seabed geological conditions. Furthermore, existing pile driving systems usually employ a uniform driving mode, applying the same pressure and flow to all nozzles, resulting in low pile driving efficiency due to this "one-size-fits-all" approach. Summary of the Invention

[0005] The purpose of this application is to provide a pile driving nozzle control valve, a pile driving system, a self-elevating offshore platform, and a pile driving method, which can automatically adjust the opening degree of the control valve according to the pressure it receives, thereby saving energy and reducing consumption, improving the pile driving efficiency of the platform, and enhancing the platform's adaptability to different operating environments.

[0006] To solve at least one of the above-mentioned technical problems, this application adopts the following technical solution:

[0007] According to a first aspect of this application, a pile driving nozzle control valve is provided, comprising: a valve body having a channel for fluid passage and a valve core disposed within the channel; a drive mechanism for driving the valve core to rotate; an inlet pressure detector disposed at the inlet of the valve body for detecting the pressure at the inlet of the valve body; an outlet pressure detector disposed at the outlet of the valve body for detecting the pressure at the outlet of the valve body; a displacement detector disposed on the valve core for detecting the position of the valve core; a wireless communication module; and a processor electrically connected to the drive mechanism, the inlet pressure detector, the outlet pressure detector, the displacement detector, and the wireless communication module, respectively, for receiving and processing the detection information from the inlet pressure detector, the outlet pressure detector, and the displacement detector, and for controlling the drive mechanism, wherein the wireless communication module is used for the processor to communicate wirelessly with the control system of a jack-up offshore platform.

[0008] In one possible implementation of the first aspect described above, one end of the channel is used to connect to a nozzle and the other end is used to connect to a fluid supply device.

[0009] In one possible implementation of the first aspect described above, the drive mechanism includes: a drive motor; a drive rod, the output shaft of the drive motor being connected to one end of the drive rod, and the other end of the drive rod being connected to the valve core.

[0010] In one possible implementation of the first aspect described above, the drive mechanism further includes a fixed frame, a drive motor mounted on the fixed frame, a connecting seat protruding outward on the valve body, the connecting seat being connected to the fixed frame, and a through hole for the drive rod to pass through and communicate with the valve body, with a bearing cooperating with the drive rod at the end of the through hole away from the valve body.

[0011] In one possible implementation of the first aspect described above, the wireless communication module is one of WIFI, Bluetooth, or Zigbee.

[0012] In one possible implementation of the first aspect above, the pile driving nozzle control valve of this application further includes: a power module for supplying power to the processor.

[0013] According to a second aspect of this application, a pile driving system is provided, comprising: a fluid supply device; a plurality of nozzles disposed on the upper and lower surfaces of a pile shoe; and a plurality of pile driving nozzle control valves disposed on the upper and lower surfaces of the pile shoe and corresponding one-to-one with the nozzles, wherein one end of each pile driving nozzle control valve is connected to its corresponding nozzle and the other end is connected to the fluid supply device, and the pile driving nozzle control valve is the pile driving nozzle control valve of the first aspect described above.

[0014] According to a third aspect of this application, a self-elevating offshore platform is provided, including the pile driving system described in the second aspect above.

[0015] According to a fourth aspect of this application, a pile driving method is provided, applied to the jack-up offshore platform described in the third aspect above, the pile driving method comprising:

[0016] During the pile driving phase, the control system of the jack-up offshore platform keeps all pile driving nozzle control valves closed.

[0017] During the standing operation phase, the control system keeps all pile nozzle control valves closed and periodically and rapidly opens and closes them a predetermined number of times to prevent blockage and clear blockages.

[0018] During the pile extraction preparation stage, the processor of the pile ejection nozzle control valve receives and processes the detection information from the inlet pressure detector, outlet pressure detector, and displacement detector to obtain the back pressure and opening degree of the pile ejection nozzle control valve. This information is then transmitted to the control system via a wireless communication module. The control system controls all pile ejection nozzle control valves to open and close rapidly a predetermined number of times to prevent blockage and clear blockages.

[0019] During the pile extraction stage, the control system controls the high back pressure pile nozzle control valve to increase its opening, and controls the low back pressure pile nozzle control valve to decrease its opening.

[0020] During the post-pile extraction maintenance phase, the control system first opens all the control valves of the pile flushing nozzles to flush the entire pile flushing pipeline, and then closes all the control valves of the pile flushing nozzles.

[0021] In one possible implementation of the fourth aspect above, during the pile extraction stage, the inlet pressure detector and outlet pressure detector of each pile driving nozzle control valve perform pressure detection in real time. When the back pressure of the pile driving nozzle control valve is lower than the preset threshold and continues to decrease, the control system controls the pile driving nozzle control valve to gradually reduce the opening until it is closed.

[0022] The above-mentioned technical solution of this application has at least one of the following beneficial effects:

[0023] The pile driving nozzle control valve according to this application includes: a valve body, a drive mechanism, an inlet pressure detector, an outlet pressure detector, a displacement detector, a wireless communication module, and a processor. The inlet pressure detector detects the pressure at the valve body inlet, the outlet pressure detector detects the pressure at the valve body outlet, and the displacement detector detects the position of the valve core within the valve body. The processor receives and processes the detection information from the inlet pressure detector, outlet pressure detector, and displacement detector to obtain the back pressure and opening degree of the pile driving nozzle control valve, and transmits this information to the control system of the jack-up offshore platform via the wireless communication module. Multiple pile driving nozzle control valves are respectively installed on the upper and lower surfaces of the pile shoe. Each pile driving nozzle control valve is connected to a corresponding nozzle, and each pile driving nozzle control valve is connected to a corresponding fluid supply device. Based on the back pressure of the pile driving nozzle control valve at different parts of the pile shoe, i.e., the adsorption resistance experienced by different parts of the pile shoe, the opening degree of the corresponding pile driving nozzle control valve is increased or decreased to adjust the intensity of the fluid ejected from the nozzle and precisely control the opening degree of the pile driving nozzle control valve.

[0024] Therefore, the pile driving nozzle control valve of this application can automatically adjust its opening according to the pressure received by the pile driving nozzle control valve at different parts of the pile shoe by real-time detection of the back pressure and opening of the control valve, and accurately control the opening of the pile driving nozzle control valve, thereby meeting the pile driving needs of the platform under various working conditions, saving energy and reducing consumption, improving the pile driving efficiency and operational safety of the platform, adapting to various complex seabed geological conditions, and improving the platform's adaptability to different operating environments.

[0025] In addition, unless otherwise specified in the technical solution of this application, the technical solution can be implemented by conventional means in the field. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a pile driving nozzle control valve according to one embodiment of this application;

[0028] Figure 2 This is a cross-sectional view of a pile driving nozzle control valve according to one embodiment of this application;

[0029] Figure 3 A bottom view of a pile shoe with multiple pile driving nozzle control valves mounted on its lower surface, according to one embodiment of this application.

[0030] Figure 4This is a schematic flowchart of a pile driving method according to one embodiment of this application.

[0031] Explanation of the labels in the attached drawings:

[0032] 1000 control valve for pile driving nozzle;

[0033] Valve body 100; channel 101; valve core 102; connecting seat 103; bearing 104; inlet pressure detector 200; outlet pressure detector 300; processor 400; drive mechanism 500; drive motor 501; drive rod 502; fixing frame 503; power module 600; wireless communication module 700;

[0034] Pile boots 2000. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral molding; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] See Figures 1-3As shown, a pile driving nozzle control valve 1000 according to an embodiment of this application is schematically displayed. It is mainly used in the pile driving system of a self-elevating offshore platform. The pile driving nozzle control valve 1000 of this application includes: valve body 100, drive mechanism 500, inlet pressure detector 200, outlet pressure detector 300, displacement detector (not shown in the figure), wireless communication module 700 and processor 400.

[0039] The valve body 100 has a channel 101 for fluid passage, and a valve core 102 is housed within the channel 101. One end of the channel 101 is connected to a nozzle via a pipe, and the other end is connected to a fluid supply device via a pipe. A drive mechanism 500 drives the valve core 102 to rotate, thereby adjusting the opening of the pile driving nozzle control valve 1000, such as fully opening, fully closing, or having a certain opening degree, with stepless adjustment from 0-100%. An inlet pressure detector 200 is located at the inlet of the valve body 100 to detect the pressure at the inlet. An outlet pressure detector 300 is located at the outlet of the valve body 100 to detect the pressure at the outlet. A displacement detector is located on the valve core 102 to detect the position of the valve core 102. The processor 400 is electrically connected to the drive mechanism 500, the inlet pressure detector 200, the outlet pressure detector 300, the displacement detector, and the wireless communication module 700. The processor 400 is used to receive and process the detection information from the inlet pressure detector 200, the outlet pressure detector 300, and the displacement detector, and to control the drive mechanism 500. The wireless communication module 700 is used for the processor 400 to communicate wirelessly with the control system of the self-elevating offshore platform.

[0040] Multiple pile driving nozzle control valves 1000 are respectively installed on the upper and lower surfaces of the pile shoe 2000. Each pile driving nozzle control valve 1000 is connected to a corresponding nozzle, and each pile driving nozzle control valve 1000 is connected to a corresponding fluid supply device. During the pile extraction preparation stage, the processor 400 of the pile driving nozzle control valve 1000 receives and processes the detection information from the inlet pressure detector 200, the outlet pressure detector 300, and the displacement detector to obtain the back pressure (i.e., the pressure difference between the inlet and outlet pressures) and opening degree of the pile driving nozzle control valve 1000, and transmits it to the control system via the wireless communication module 700. The control system starts the high-pressure pile driving pump of the fluid supply device and controls all pile driving nozzle control valves 1000 to quickly open and close a predetermined number of times to prevent blockage and clear blockages, such as quickly opening and closing 3-5 times, each lasting 0.5 seconds, to clear any possible blockages. How the processor 400 obtains the back pressure and opening degree of the pile driving nozzle control valve 1000 can be achieved through existing calculation methods, and will not be described in detail here.

[0041] During the pile extraction phase, based on the back pressure of the pile shoe 2000 at different locations of the impact nozzle control valve 1000 (i.e., the adsorption resistance experienced by different parts of the pile shoe 2000), the control system controls the corresponding impact nozzle control valve 1000 to increase or decrease its opening, thereby adjusting the intensity of the jet fluid and precisely controlling the opening of the impact nozzle control valve 1000. Different back pressures correspond to different openings. By real-time detection of the back pressure and opening of all impact nozzle control valves 1000, the system dynamically adjusts the opening of each valve, achieving adaptive intelligent pile extraction. During the standing operation phase, the impact nozzle control valve 1000 can also be controlled to open and close rapidly a predetermined number of times periodically (e.g., every 24 hours) to prevent blockages and unclog impurities. During the post-extraction maintenance phase, the impact nozzle control valve 1000 can be opened to allow high-pressure fluid to clean the entire impact pipeline. After cleaning, the impact nozzle control valve 1000 is closed to prevent seawater backflow. During the pile driving stage, the control valve 1000 of the pile driving nozzle is kept closed to effectively prevent seabed sediment from entering the pile driving pipeline. The soil resistance changes can also be detected through the control valves 1000 of each pile driving nozzle to establish a soil resistance distribution map around the pile shoe 2000.

[0042] Therefore, the pile driving nozzle control valve 1000 of this application can automatically adjust its opening according to the pressure received by the pile driving nozzle control valve 1000 at different parts of the pile shoe 2000 by real-time detection of the back pressure and opening of the pile driving nozzle control valve 1000, and precisely control the opening of the pile driving nozzle control valve 1000. It can dynamically adjust the opening of each pile driving nozzle control valve 1000 to achieve adaptive intelligent pile driving, thereby meeting the pile driving needs of various working conditions of the platform, avoiding the low pile driving efficiency and energy waste caused by the existing "one-size-fits-all" pile driving method, saving energy and reducing consumption, improving the pile driving efficiency and operational safety of the platform, and being able to adapt to various complex seabed geological conditions, thereby improving the platform's adaptability to different operating environments.

[0043] In some embodiments, reference Figure 2 As shown, the drive mechanism 500 includes a drive motor 501 and a drive rod 502. The output shaft of the drive motor 501 is connected to one end of the drive rod 502, and the other end of the drive rod 502 is connected to the valve core 102. The control system controls the drive motor 501 to rotate the drive rod 502, which in turn drives the valve core 102 to rotate, thereby stably adjusting the opening of the pile driving nozzle control valve 1000.

[0044] Optionally, refer to Figure 2As shown, the drive mechanism 500 also includes a fixed frame 503. The drive motor 501 is mounted on the fixed frame 503. The valve body 100 is provided with an outwardly protruding connecting seat 103, which is connected to the fixed frame 503. The connecting seat 103 is provided with a through hole for the drive rod 502 to pass through and communicate with the inside of the valve body 100. A bearing 104 that cooperates with the drive rod 502 is provided at the end of the through hole away from the valve body 100. The bearing 104 can ensure the stable rotation of the drive rod 502. A sealing ring or other sealing element can also be provided between the through hole and the drive rod 502 to prevent fluid leakage.

[0045] In some embodiments, the wireless communication module 700 may employ one of WIFI (Wireless Fidelity), Bluetooth, or Zigbee (i.e., Zigbee protocol) to achieve wireless communication. This ensures that the pile driving nozzle control valve 1000 communicates wirelessly with the control system.

[0046] In some embodiments, reference Figure 1 As shown, the pile driving nozzle control valve 1000 of this application also includes a power module 600, which supplies power to the processor 400. This improves the safety and reliability of the equipment.

[0047] See Figure 3 As shown in the embodiments of this application, a pile driving system for a jack-up offshore platform is also provided, including: a fluid supply device, multiple nozzles, and multiple pile driving nozzle control valves 1000 of this application. Each nozzle corresponds one-to-one with a pile driving nozzle control valve 1000, and the multiple nozzles and multiple pile driving nozzle control valves 1000 are disposed on the upper and lower surfaces of a pile shoe 2000. One end of each pile driving nozzle control valve 1000 is connected to its corresponding nozzle, and the other end is connected to the fluid supply device. Each pile driving nozzle control valve 1000 wirelessly communicates with the control system of the jack-up offshore platform. The fluid supply device can use a high-pressure pile driving pump to provide high-pressure water or air to each nozzle.

[0048] Therefore, the pile driving system of this application, by real-time detection of the back pressure and opening degree of each pile driving nozzle control valve 1000, can automatically adjust the opening degree of the pile driving nozzle control valve 1000 at different parts of the pile shoe 2000 according to the pressure it receives, and precisely control the opening degree of each pile driving nozzle control valve 1000. It dynamically adjusts the opening degree of each pile driving nozzle control valve 1000 to achieve adaptive intelligent pile driving, thereby meeting the pile driving needs of the platform under various working conditions, saving energy and reducing consumption, improving the pile driving efficiency and operational safety of the platform, adapting to various complex seabed geological conditions, and improving the platform's adaptability to different operating environments.

[0049] See Figure 3As shown in the figure, a self-elevating offshore platform is also provided according to an embodiment of this application, including the pile driving system of the above application. The self-elevating offshore platform also includes a platform body, pile legs, pile shoes 2000, and a lifting device for driving the pile legs to rise and fall, etc. These devices can be existing corresponding devices, which will not be described in detail here.

[0050] A pile driving method is also provided according to an embodiment of this application, applied to the pile driving system described above. See also Figure 4 As shown, the pile driving method of this application includes:

[0051] During the pile driving phase, the control system of the jack-up offshore platform keeps all pile driving nozzle control valves closed, effectively preventing seabed sediment from entering the pile driving pipeline. For example, each pile shoe can have 24 pile driving nozzle control valves and 24 nozzles evenly distributed on its upper and lower surfaces. Each pile driving nozzle control valve communicates wirelessly with the control system, and each valve can operate independently or in coordinated operation across the area. Furthermore, changes in soil resistance can be detected by the outlet pressure detectors of each pile driving nozzle control valve, creating a soil resistance distribution map around the pile shoe.

[0052] During the standing operation phase, the control system keeps all pile nozzle control valves closed and periodically (e.g., every 24 hours) rapidly opens and closes a predetermined number of times to prevent blockage and unclog, thus preventing the accumulation of impurities.

[0053] During the pile extraction preparation phase, the processor of the pile driving nozzle control valve receives and processes detection information from the inlet pressure detector, outlet pressure detector, and displacement detector to obtain the back pressure and opening degree of the pile driving nozzle control valve. This information is then transmitted to the control system via a wireless communication module. The control system controls all pile driving nozzle control valves to rapidly open and close a predetermined number of times to prevent blockages and clear any potential obstructions. For example, if the inlet pressure of the pile driving nozzle control valve abnormally increases and the outlet pressure is zero, indicating a risk of blockage, the fluid supply device uses a high-pressure pile driving pump to provide high-pressure water or air. All pile driving nozzle control valves then rapidly open and close 3-5 times, each time for 0.5 seconds, to prevent blockages and clear obstructions.

[0054] During the pile extraction stage, based on the back pressure of the control valves of the impact nozzles at different parts of the pile shoe—that is, the adsorption resistance experienced by different parts of the pile shoe—the control system increases the opening of the control valves of impact nozzles with high back pressure and decreases the opening of the control valves of impact nozzles with low back pressure, thus adjusting the intensity of the jet fluid from the nozzles. Different back pressures correspond to different openings. By monitoring the back pressure and opening of all impact nozzle control valves in real time, the system dynamically adjusts the opening of each impact nozzle control valve to achieve adaptive intelligent pile extraction. This differentiated pile extraction strategy optimizes resource allocation and avoids the low efficiency and energy waste caused by the existing "one-size-fits-all" pile extraction method. For example, the back pressure of the impact nozzle control valve in the lower left area of ​​the pile shoe is 0.8 MPa (i.e., the high resistance zone), indicating that the soil adsorption force is relatively large. The control system adjusts the opening of the impact nozzle control valve in this area to 80%. The back pressure of the impact nozzle control valve in the lower right area of ​​the pile shoe is only 0.3 MPa (i.e., the low resistance zone), and the control system adjusts the opening of the impact nozzle control valve in this area to 30%. In addition, the inlet pressure detector and outlet pressure detector of each pile driving nozzle control valve perform pressure detection in real time. When the back pressure of the pile driving nozzle control valve is lower than the preset threshold and continues to decrease, the control system controls the pile driving nozzle control valve to gradually reduce the opening until it is closed, indicating that the adsorption resistance of the pile shoe at this position has been overcome, thereby distributing energy to the high resistance area and saving energy and reducing consumption.

[0055] During the post-pile extraction maintenance phase, the control system first opens all the control valves of the pile flushing nozzles to flush the entire pile flushing pipeline, and then closes all the control valves of the pile flushing nozzles to prevent seawater backflow.

[0056] The operational data from each of the above stages can be uploaded and stored in the control system to form a pile driving operation database for subsequent analysis and optimization of operational parameters. During each stage, operators can monitor information such as working status, back pressure, and opening degree of each nozzle and pile driving nozzle control valve in real time through the control system, gaining a comprehensive understanding of the pile driving process, promptly identifying abnormalities, and improving operational safety.

[0057] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0058] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of this application. In this case, all details can be replaced with equivalent elements, and materials, shapes, and sizes can also be arbitrary.

Claims

1. A control valve for a pile driving nozzle, characterized in that, include: The valve body has a channel for fluid to pass through, and a valve core is installed in the channel; A drive mechanism is used to drive the valve core to rotate; An inlet pressure detector is installed at the inlet of the valve body to detect the pressure at the inlet of the valve body. An outlet pressure detector is installed at the outlet of the valve body to detect the pressure at the outlet of the valve body. A displacement detector, installed on the valve core, is used to detect the position of the valve core; Wireless communication module; The processor is electrically connected to the drive mechanism, the inlet pressure detector, the outlet pressure detector, the displacement detector, and the wireless communication module, respectively. It is used to receive and process the detection information from the inlet pressure detector, the outlet pressure detector, and the displacement detector, and to control the drive mechanism. The wireless communication module is used for the processor to communicate wirelessly with the control system of the jack-up offshore platform.

2. The pile driving nozzle control valve according to claim 1, characterized in that, One end of the channel is used to connect to a nozzle and the other end is used to connect to a fluid supply device.

3. The pile driving nozzle control valve according to claim 1, characterized in that, The drive mechanism includes: Drive motor; A drive rod is provided, with the output shaft of the drive motor connected to one end of the drive rod and the other end of the drive rod connected to the valve core.

4. The pile driving nozzle control valve according to claim 3, characterized in that, The drive mechanism also includes a fixed frame, the drive motor is mounted on the fixed frame, the valve body is provided with an outwardly protruding connecting seat, the connecting seat is connected to the fixed frame, the connecting seat is provided with a through hole for the drive rod to pass through and communicate with the valve body, and a bearing that cooperates with the drive rod is provided at the end of the through hole away from the valve body.

5. The pile driving nozzle control valve according to claim 1, characterized in that, The wireless communication module is one of WIFI, Bluetooth or Zigbee.

6. The pile driving nozzle control valve according to claim 1, characterized in that, Also includes: A power module for supplying power to the processor.

7. A pile driving system, characterized in that, include: Fluid supply device; Multiple nozzles are disposed on the upper and lower surfaces of the pile shoe; Multiple pile driving nozzle control valves are disposed on the upper and lower surfaces of the pile shoe and correspond one-to-one with the nozzles. One end of each pile driving nozzle control valve is connected to its corresponding nozzle and the other end is connected to the fluid supply device. The pile driving nozzle control valve is the pile driving nozzle control valve according to any one of claims 1 to 6.

8. A self-elevating offshore platform, characterized in that, Includes the pile driving system as described in claim 7.

9. A method for pile driving, characterized in that, The pile driving method, applied to the jack-up offshore platform of claim 8, comprises: During the pile driving phase, the control system of the self-elevating offshore platform controls all pile driving nozzle control valves to be in the closed state; During the standing operation phase, the control system controls all the control valves of the pile driving nozzles to remain closed, and periodically and rapidly opens and closes them a predetermined number of times to prevent blockage and clear blockages. During the pile extraction preparation stage, the processor of the pile driving nozzle control valve receives and processes the detection information from the inlet pressure detector, outlet pressure detector, and displacement detector to obtain the back pressure and opening degree of the pile driving nozzle control valve, and transmits it to the control system through the wireless communication module. The control system controls all the pile driving nozzle control valves to open and close rapidly a predetermined number of times to prevent blockage and clear blockage. During the pile extraction stage, the control system controls the pile nozzle control valve under high back pressure to increase its opening, and controls the pile nozzle control valve under low back pressure to decrease its opening. During the post-pile extraction maintenance phase, the control system first controls all the control valves of the pile driving nozzles to open, flushing the entire pile driving pipeline, and then controls all the control valves of the pile driving nozzles to close.

10. The pile driving method according to claim 9, characterized in that, During the pile extraction stage, the inlet pressure detector and outlet pressure detector of each pile driving nozzle control valve perform pressure detection in real time. When the back pressure of the pile driving nozzle control valve is lower than the preset threshold and continues to decrease, the control system controls the pile driving nozzle control valve to gradually reduce the opening until it is closed.

Images