Hydraulic control system for an occluder

Abstract

The application provides a hydraulic control system of a plugging device, relates to the technical field of oil and gas pipeline plugging, and is used for obtaining a pressure parameter of the maximum pressure of a hydraulic system and generating a control system of an adjusting strategy according to the pressure parameter, which comprises a parameter acquisition module, a hydraulic valve adjusting module used for adjusting internal hydraulic valves according to the adjusting strategy, a cylinder adjusting module used for self-regulating according to the adjustment of each hydraulic valve in the hydraulic valve adjusting module, so that the plugging device is anchored and sealed in a pipeline, and an oil supply module used for supplying oil to the hydraulic valve adjusting module according to the adjusting strategy. The application solves the problems of low propelling efficiency, poor stability and low accuracy of the plugging device in the prior art through the control system.

Description

Technical Field

[0001] This application relates to the field of oil and gas pipeline plugging technology, and in particular to a hydraulic control system for a plugging device. Background Technology

[0002] my country's total oil and gas pipeline mileage has reached 165,000 kilometers, and it is projected to exceed 240,000 kilometers by 2025. As pipelines age, corrosion and leakage accidents are increasingly common due to external interference, environmental corrosion, or material defects caused by immature early materials technology, making pipeline failure a growing problem. Repair and maintenance operations, such as replacing failed pipelines or control hydraulic valves, adding branches, modifying pipeline lines, and replacing pipe sections, are becoming more frequent, leading to increased attention being paid to pipeline sealing and repair equipment and related technologies.

[0003] For the repair and maintenance of oil and gas transportation pipelines, the first step in dealing with damaged pipeline sections is to seal the damaged areas. Currently, sealing devices for oil and gas pipeline repair and maintenance are mainly divided into two types: 1. Live-line tapping sealing devices, and 2. Pipeline robotic sealing devices. Compared with traditional live-line tapping sealing devices, pipeline robotic sealing devices have significant advantages: they eliminate the need for tapping, reducing the scale of construction, lowering costs, and minimizing damage to the pipeline. The working principle of the pipeline robotic sealing device is that it enters the pipeline from the pipe opening. Driven by the pipeline cleaning power module, the intelligent pipeline sealing robot, propelled by the medium, reaches the section of the pipeline that needs to be sealed and squeezes the rubber cartridge to achieve the sealing operation.

[0004] Existing plugging device control systems employ either single-sided or multi-sided sealing cylinder configurations, each with its own problems: The single-sided hydraulic cylinder makes it difficult to control the propulsion force, which greatly affects the sealing efficiency and stability of the plug.

[0005] The multi-sided hydraulic cylinders, lacking a precise electro-hydraulic control structure, cannot achieve accurate sealing with the plug. Summary of the Invention

[0006] This application provides a hydraulic control system for a plugging device to solve the problems of low propulsion efficiency, poor stability, and low accuracy of plugging devices in the prior art.

[0007] The control system is arranged around the occluder, and the control system includes: A parameter acquisition module is configured to acquire the pressure parameter of the highest pressure of the hydraulic system and generate an adjustment strategy based on the pressure parameter. A hydraulic valve adjustment module is electrically connected to the parameter acquisition module. The hydraulic valve adjustment module has several hydraulic valves inside. The hydraulic valve adjustment module is configured to adjust its internal hydraulic valves according to the adjustment strategy. Each hydraulic valve in the hydraulic valve adjustment module can be independently controlled according to the adjustment strategy. A hydraulic cylinder adjustment module is arranged around the plug, and the hydraulic cylinder adjustment module has several independent hydraulic cylinders. Each hydraulic cylinder in the hydraulic cylinder adjustment module is connected to a corresponding hydraulic valve in the hydraulic valve adjustment module through a pipeline. The hydraulic cylinder adjustment module is configured to adjust itself according to the adjustment of each hydraulic valve in the hydraulic valve adjustment module so that the plug is anchored and sealed in the pipeline. An oil supply module is electrically connected to the parameter acquisition module and is pipe-connected to the cylinder adjustment module. The oil supply module is configured to supply oil to the hydraulic valve adjustment module according to the adjustment strategy.

[0008] Preferably, the parameter acquisition module includes: A pressure sensor configured to acquire pressure parameters of the occluder; A displacement sensor configured to acquire anchor displacement.

[0009] Preferably, the hydraulic valve regulating module includes: An electro-hydraulic proportional multi-way valve having a plurality of plate valves, the electro-hydraulic proportional multi-way valve being configured to drive the opening or closing of each of its internal plate valves according to the adjustment strategy; The balancing valve group comprises several independent balancing valves. The oil inlet of each balancing valve is connected to the corresponding plate valve in the electro-hydraulic proportional multi-way valve, and the oil outlet of each balancing valve is connected to the corresponding cylinder in the cylinder adjustment module. The balancing valve group is configured to balance the load of the corresponding plate valve in the electro-hydraulic proportional multi-way valve.

[0010] Preferably, the hydraulic cylinder adjustment module includes: An anchoring cylinder is connected to its corresponding balance valve group. The displacement sensor is installed on the anchoring cylinder. The anchoring cylinder is configured to anchor the plug at a specified position according to the opening or closing of the electro-hydraulic proportional multi-way valve and the corresponding balance valve group. A sealing cylinder assembly includes several independent cylinders, each connected to its corresponding balance valve assembly. The two nearest adjacent sealing cylinder assemblies are connected to each other. The sealing cylinder assembly is configured to open or close according to the electro-hydraulic proportional multi-way valve and the corresponding balance valve assembly, so as to seal the pipe with the plug.

[0011] Preferably, the sealing cylinder assembly includes a first sealing cylinder, a second sealing cylinder, a third sealing cylinder, a fourth sealing cylinder, a fifth sealing cylinder, and a sixth sealing cylinder; The first sealing cylinder, the second sealing cylinder, the third sealing cylinder, the fourth sealing cylinder, the fifth sealing cylinder, and the sixth sealing cylinder are evenly arranged on the outer wall of the plugger; The first sealing cylinder, the second sealing cylinder, the third sealing cylinder, the fourth sealing cylinder, the fifth sealing cylinder, and the sixth sealing cylinder are respectively connected to the corresponding balance valves in the balance valve group; The first and second sealing cylinders move in the same way, the third and fourth sealing cylinders move in the same way, and the fifth and sixth sealing cylinders move in the same way. The movement includes the extension and retraction of the sealing cylinders.

[0012] Preferably, the balancing valve assembly includes: The first balance valve, the oil outlet of the first balance valve is connected to the anchoring cylinder; The second balance valve, the oil outlet of the second balance valve is connected to the first sealing cylinder; The third balance valve, the oil outlet of which is connected to the second sealing cylinder; The fourth balance valve, the oil outlet of which is connected to the third sealing cylinder; The fifth balance valve, the oil outlet of which is connected to the fourth sealing cylinder; The sixth balance valve, the oil outlet of which is connected to the fifth sealing cylinder; The seventh balance valve, the oil outlet of which is connected to the sixth sealing cylinder.

[0013] Preferably, the electro-hydraulic proportional multi-way valve includes: The first connection, wherein the oil inlet end of the first connection is connected to the oil supply module; The first valve has its inlet end connected to the outlet end of the first connector, and its outlet end is connected to the first balance valve. The second valve has its inlet end connected to the outlet end of the first valve, and its outlet end is connected to the third balance valve and the second balance valve respectively. The third valve has its inlet end connected to the outlet end of the first valve, and its outlet end is connected to the fifth balance valve and the fourth balance valve respectively. The fourth valve has its inlet end connected to the outlet end of the first valve, and its outlet end is connected to the seventh balance valve and the sixth balance valve respectively. The tail connector is provided at the end of the pipes that are respectively connected to the first valve, the second valve, the third valve and the fourth valve.

[0014] Preferably, the first connection includes a three-way flow control valve, a first overflow valve, a pilot oil filter, and a pilot oil pressure reducing valve; the pilot oil pressure reducing valve is connected to the oil supply module, the pilot oil filter, the pilot oil pressure reducing valve, and the three-way flow control valve are connected in sequence, and the first overflow valve is connected in parallel between the pilot oil filter and the three-way flow control valve.

[0015] Preferably, the first valve includes a first two-way flow control valve, a second relief valve, a first main valve core, and a first buffer oil replenishing valve. The first two-way flow control valve, the first main valve core, and the first buffer oil replenishing valve are connected in sequence, and the second relief valve is connected in parallel to both ends of the first two-way flow control valve. The first, second, third, and fourth valves have the same internal structure.

[0016] Preferably, the oil supply module includes: Oil tank, wherein hydraulic oil is stored; An oil bladder is disposed inside the oil tank and is configured to squeeze hydraulic oil from the oil tank into the hydraulic valve regulating module. An air filter is disposed at the oil outlet of the oil tank, and the air filter is configured to prevent negative pressure from occurring in the oil tank; A return oil filter is disposed at the upper end of the oil tank and is configured to filter the hydraulic oil returning from the hydraulic valve regulating module.

[0017] As can be seen from the above, this application provides a hydraulic control system for a plugging device. The control system includes a parameter acquisition module configured to acquire pressure parameters of the highest pressure in the hydraulic system and generate an adjustment strategy based on these pressure parameters; a hydraulic valve adjustment module electrically connected to the parameter acquisition module, the hydraulic valve adjustment module having several hydraulic valves internally, configured to adjust its internal hydraulic valves according to the adjustment strategy, each hydraulic valve in the hydraulic valve adjustment module being independently adjustable according to the adjustment strategy; and a cylinder adjustment module. The hydraulic cylinder adjustment module is arranged around the plugging device. The hydraulic cylinder adjustment module has several independent hydraulic cylinders, each of which is connected to a corresponding hydraulic valve in the hydraulic valve adjustment module via a pipeline. The hydraulic cylinder adjustment module is configured to automatically adjust itself according to the adjustment of each hydraulic valve in the hydraulic valve adjustment module, so that the plugging device is anchored and sealed within the pipeline. An oil supply module is electrically connected to the parameter acquisition module, and the oil supply module is connected to the hydraulic cylinder adjustment module via a pipeline. The oil supply module is configured to supply oil to the hydraulic valve adjustment module according to the adjustment strategy. This application solves the problems of low propulsion efficiency, poor stability, and low accuracy of the plugging device in the prior art through the above-described control system. Attached Figure Description

[0018] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the embodiments will be briefly described below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort: Figure 1 A schematic diagram of a hydraulic control system for a plugger provided in an embodiment of this application; Figure 2 This is a distribution diagram of the sealing cylinders in the embodiments of this application. Detailed Implementation

[0019] Figure 1 This is a schematic diagram of a hydraulic control system for a plugger provided in an embodiment of this application.

[0020] See Figure 1 As can be seen, this embodiment provides a hydraulic control system for a plugging device, the control system being arranged around the plugging device, and the control system includes: The parameter acquisition module 100 is configured to acquire the pressure parameters inside the pipeline where the plug is located, and generate an adjustment strategy based on the pressure parameters. Specifically, in this embodiment, the parameter acquisition module 100 is used to acquire the pressure parameters inside the pipeline where the plug is located. The parameters include the pressure parameters of the plug and the displacement parameters of the plug. The adjustment strategy for adjusting the subsequent hydraulic valves and cylinders is generated based on the pressure parameters and the displacement parameters.

[0021] The parameter acquisition module 100 includes a pressure sensor 110 configured to acquire the pressure parameters of the plug; and a displacement sensor 120 configured to acquire the anchor displacement.

[0022] The control system also includes: A hydraulic valve adjustment module 200 is electrically connected to the parameter acquisition module 100. The hydraulic valve adjustment module 200 contains several hydraulic valves and is configured to adjust its internal hydraulic valves according to the adjustment strategy. Each hydraulic valve in the hydraulic valve adjustment module 200 can be independently controlled according to the adjustment strategy. Specifically, in this embodiment, the hydraulic valve adjustment module 200 contains several hydraulic valves, and the control of subsequent cylinders is achieved through the adjustment between each hydraulic valve. The hydraulic valve adjustment module 200 is filled with hydraulic oil and, through electrical connection with the parameter acquisition module 100, realizes electro-hydraulic control of the plugging device control system.

[0023] Furthermore, in some embodiments, the hydraulic valve regulating module 200 includes: An electro-hydraulic proportional multi-way valve 210 has a plurality of plate valves, and the electro-hydraulic proportional multi-way valve 210 is configured to drive the opening or closing of each of its internal plate valves according to the adjustment strategy. The balance valve group 220 includes several independent balance valves. The oil inlet of each balance valve is connected to the corresponding plate valve in the electro-hydraulic proportional multi-way valve 210, and the oil outlet of each balance valve is connected to the corresponding cylinder in the cylinder adjustment module 300. The balance valve group 220 is configured to balance the load of the corresponding plate valve in the electro-hydraulic proportional multi-way valve 210.

[0024] Specifically, in this embodiment, the electro-hydraulic proportional multi-way valve 210 is a main component electrically connected to the parameter acquisition module 100. When the parameter acquisition module 100 issues the adjustment strategy, the electro-hydraulic proportional multi-way valve 210 opens and closes the corresponding plate valve according to the adjustment strategy, thereby providing propulsion oil for the subsequent corresponding hydraulic cylinder. The balance valve group 220 is used to balance the load of the corresponding plate valve in the electro-hydraulic proportional multi-way valve 210 to avoid affecting the propulsion stability of the hydraulic cylinder.

[0025] The control system also includes: A hydraulic cylinder adjustment module 300 is arranged around the plug. The hydraulic cylinder adjustment module 300 has several independent hydraulic cylinders. Each hydraulic cylinder in the hydraulic cylinder adjustment module 300 is connected to a corresponding hydraulic valve in the hydraulic valve adjustment module 200 through a pipeline. The hydraulic cylinder adjustment module 300 is configured to automatically adjust itself according to the adjustment of each hydraulic valve in the hydraulic valve adjustment module 200, so that the plug is anchored and sealed in the pipeline. Specifically, in this embodiment, the hydraulic cylinder adjustment module 300 is evenly arranged around the plug. The hydraulic cylinder adjustment module 300 uses propulsion oil provided by the hydraulic valve adjustment module 200 for extension, retraction, anchoring and sealing, thereby realizing the anchoring and sealing of the plug in the pipeline.

[0026] Furthermore, in some embodiments, the cylinder adjustment module 300 includes: An anchoring cylinder 310 is connected to its corresponding balance valve group 220. The displacement sensor 120 is installed on the anchoring cylinder 310. The anchoring cylinder 310 is configured to anchor the plug at a specified position according to the opening or closing of the electro-hydraulic proportional multi-way valve 210 and the corresponding balance valve group 220. Specifically, in this embodiment, the anchoring cylinder 310 stabilizes the plug at a specified position to avoid displacement deviation of the plug.

[0027] The hydraulic cylinder adjustment module 300 also includes: A sealing cylinder assembly 320 includes several independent cylinders, each connected to its corresponding balance valve assembly 220. The balance valve assemblies 220 corresponding to the two nearest adjacent sealing cylinder assemblies 320 are connected. The sealing cylinder assembly 320 is configured to push the plug to seal within the pipeline according to the opening or closing of the electro-hydraulic proportional multi-way valve 210 and the corresponding balance valve assembly 220. Specifically, in this embodiment, the displacement of the plug is achieved through the sealing cylinder assembly 320. Each independent cylinder in the sealing cylinder assembly 320 is connected to its corresponding balance valve assembly 220, and the corresponding balance valve assembly 220 is connected to the corresponding plate valve in the electro-hydraulic proportional multi-way valve 210. This allows for independent adjustment of the corresponding cylinder, making the displacement adjustment of the plug more accurate and improving the efficiency of the plug's advancement to a certain extent.

[0028] Figure 2 This is a distribution diagram of the sealing cylinders in the embodiments of this application.

[0029] See Figure 1 and Figure 2 Furthermore, in some embodiments, the sealing cylinder assembly 320 includes a first sealing cylinder 321, a second sealing cylinder 322, a third sealing cylinder 323, a fourth sealing cylinder 324, a fifth sealing cylinder 325, and a sixth sealing cylinder 326; the first sealing cylinder 321, the second sealing cylinder 322, the third sealing cylinder 323, the fourth sealing cylinder 324, the fifth sealing cylinder 325, and the sixth sealing cylinder 326 are evenly arranged on the outer wall of the plug; the first sealing cylinder 321, the second sealing cylinder 322, the third sealing cylinder 323, the fourth sealing cylinder 324, the fifth sealing cylinder 325, and the sixth sealing cylinder 326 are... 6 are respectively connected to the corresponding balance valves in the balance valve group 220; the first sealing cylinder 321 and the second sealing cylinder 322 move in the same way, the third sealing cylinder 323 and the fourth sealing cylinder 324 move in the same way, and the fifth sealing cylinder 325 and the sixth sealing cylinder 326 move in the same way. The movement includes the extension and retraction of the sealing cylinders. Specifically, in this embodiment, the first sealing cylinder 321 and the second sealing cylinder 322, the third sealing cylinder 323 and the fourth sealing cylinder 324, and the fifth sealing cylinder 325 and the sixth sealing cylinder 326 are synchronized by a set of plate valves to avoid failure to achieve reliable sealing.

[0030] It should be noted that the sealing cylinder group 320 described in this embodiment only requires four independent sealing cylinders to achieve the sealing of the plugger, and the extra sealing cylinders are set as redundancy.

[0031] Furthermore, in some embodiments, the balance valve assembly 220 includes: a first balance valve 221, the oil outlet of which is connected to the anchoring cylinder 310; a second balance valve 222, the oil outlet of which is connected to the first sealing cylinder 321; a third balance valve 223, the oil outlet of which is connected to the second sealing cylinder 322; a fourth balance valve 224, the oil outlet of which is connected to the third sealing cylinder 323; a fifth balance valve 225, the oil outlet of which is connected to the fourth sealing cylinder 324; a sixth balance valve 226, the oil outlet of which is connected to the fifth sealing cylinder 325; and a seventh balance valve 227, the oil outlet of which is connected to the sixth sealing cylinder 326.

[0032] Specifically, in this embodiment, by equipping each sealing cylinder with a corresponding independent balance valve, the displacement of the plug can be controlled more precisely.

[0033] Furthermore, in some embodiments, the electro-hydraulic proportional multi-way valve 210 includes: a first connector 211, the oil inlet of which is connected to the oil supply module 400; a first plate valve 212, the oil inlet of which is connected to the oil outlet of the first connector 211, and the oil outlet of which is connected to the first balance valve 221; a second plate valve 213, the oil inlet of which is connected to the oil outlet of the first connector 211, and the oil outlet of which is connected to the third balance valve 223 and the second balance valve 222 respectively; and a third plate valve 214. The oil inlet of valve 214 is connected to the oil outlet of the first valve 211, and the oil outlet of the third valve 214 is connected to the fifth balance valve 225 and the fourth balance valve 224 respectively; the oil inlet of the fourth valve 215 is connected to the oil outlet of the first valve 211, and the oil outlet of the fourth valve 215 is connected to the seventh balance valve 227 and the sixth balance valve 226 respectively; the tail valve 216 is provided at the end of the pipeline of the first valve 211 connected to the first valve 212, the second valve 213, the third valve 214 and the fourth valve 215 respectively.

[0034] Specifically, in this embodiment, the first connector 211 is used to uniformly supply oil to all the valves, thereby achieving unified management of all valves. Each valve corresponds to two sealing cylinders, that is, one valve manages two sealing cylinders. The last connector 216 serves to connect all the valves.

[0035] Furthermore, in some embodiments, the first connector 211 includes a three-way flow control valve 2111, a first relief valve 2112, a pilot oil filter 2113, and a pilot oil pressure reducing valve 2114; the pilot oil pressure reducing valve 2114 is connected to the oil supply module 400, the pilot oil filter 2113, the pilot oil pressure reducing valve 2114, and the three-way flow control valve 2111 are connected in sequence, and the first relief valve 2112 is connected in parallel between the pilot oil filter 2113 and the three-way flow control valve 2111. Specifically, in this embodiment, the three-way flow control valve 2111 is used to ensure that the hydraulic pump pressure meets the load requirements for all the valves in the electro-hydraulic proportional multi-way valve 210; the first relief valve 2112 is used to prevent the hydraulic valve from bursting due to excessive pressure; the pilot oil filter 2113 is used to filter impurities in the oil; and the pilot oil pressure reducing valve 2114 is used to reduce the pressure of the oil to become control oil.

[0036] Furthermore, in some embodiments, the first plate valve 212 includes a first two-way flow control valve 2121, a second overflow valve 2122, a first main valve core 2123, and a first buffer oil replenishing valve 2124. The first two-way flow control valve 2121, the first main valve core 2123, and the first buffer oil replenishing valve 2124 are connected in sequence, and the second overflow valve 2122 is connected in parallel to both ends of the first two-way flow control valve 2121. The internal structures of the first plate valve 212, the second plate valve 213, the third plate valve 214, and the fourth plate valve 215 are the same.

[0037] Specifically, in this embodiment, the first two-way flow control valve 2121 is used to ensure a stable oil flow through the main valve core; the second relief valve 2122 is used to prevent excessive pressure from causing the hydraulic valve to burst; the first main valve core 2123 is used to control the flow rate and direction of the hydraulic oil; and the first buffer replenishing valve 2124 is used to replenish the oil flow when the oil delivered by the first main valve core 2123 is insufficient.

[0038] The control system also includes: The oil supply module 400 is electrically connected to the parameter acquisition module 100 and is pipe-connected to the cylinder adjustment module 300. The oil supply module 400 is configured to supply oil to the hydraulic valve adjustment module 200 according to the adjustment strategy. Specifically, in this embodiment, the oil supply module 400 supplies oil to the overall system.

[0039] Furthermore, in some embodiments, the oil supply module 400 includes: Oil tank 410, which stores hydraulic oil.

[0040] An oil bladder 420 is disposed inside the oil tank 410. The oil bladder 420 is configured to squeeze the hydraulic oil in the oil tank 410 into the hydraulic valve regulating module 200. Specifically, in this embodiment, the oil bladder 420 squeezes the hydraulic oil in the oil tank 410 into the hydraulic valve regulating module 200 to prevent the oil tank from rotating in the pipeline and the oil suction port from being at the top, resulting in a situation where oil cannot be sucked in.

[0041] An air filter 430 is disposed at the upper end of the oil tank 410. The air filter 430 is configured to filter air in the hydraulic oil. Specifically, in this embodiment, the air filter 430 is used to prevent negative pressure from occurring in the oil tank after the hydraulic oil enters the system.

[0042] A return oil filter 440 is disposed at the upper end of the oil tank. The return oil filter 440 is configured to filter the hydraulic oil returning from the hydraulic valve regulating module 200. Specifically, in this embodiment, the return oil filter 440 filters impurities in the return oil.

[0043] This embodiment has the following advantages: 1. The hydraulic control system of the plugging device adopts an electro-hydraulic proportional control system, allowing for direct on-site observation and intervention without manual intervention. Using an electro-hydraulic proportional valve as the main control element, the system continuously and proportionally controls the pressure, flow rate, and direction of the fluid flow according to the magnitude of the input signal (current), preventing shock phenomena during pressure or speed changes. It can easily achieve automatic control, remote control, and program control.

[0044] 2. The sealing cylinders can be divided into multiple groups, arranged symmetrically along the circumference. This prevents uneven stress from causing ineffective sealing. Following the redundancy principle, even if one group of cylinders fails, the other two groups can still provide an effective seal.

Claims

1. A hydraulic control system for a plugging device, characterized in that, The control system is partially disposed around the occluder, and the control system includes: A parameter acquisition module (100) is configured to acquire pressure parameters of the highest pressure of the hydraulic system and generate an adjustment strategy based on the pressure parameters. A hydraulic valve adjustment module (200) is electrically connected to the parameter acquisition module (100). The hydraulic valve adjustment module (200) has a plurality of hydraulic valves inside. The hydraulic valve adjustment module (200) is configured to adjust its internal hydraulic valves according to the adjustment strategy. Each hydraulic valve in the hydraulic valve adjustment module (200) can be independently controlled according to the adjustment strategy. A hydraulic cylinder adjustment module (300) is arranged around the plug, and the hydraulic cylinder adjustment module (300) has several independent hydraulic cylinders. Each hydraulic cylinder in the hydraulic cylinder adjustment module (300) is connected to a corresponding hydraulic valve in the hydraulic valve adjustment module (200) through a pipeline. The hydraulic cylinder adjustment module (300) is configured to adjust itself according to the adjustment of each hydraulic valve in the hydraulic valve adjustment module (200) so that the plug is anchored and sealed in the pipeline. An oil supply module (400) is electrically connected to the parameter acquisition module (100), and the oil supply module (400) is pipe-connected to the cylinder adjustment module (300). The oil supply module (400) is configured to supply oil to the hydraulic valve adjustment module (200) according to the adjustment strategy. The parameter acquisition module (100) includes: A pressure sensor (110) is configured to acquire pressure parameters of the plug; Displacement sensor (120), the displacement sensor (120) is configured to acquire anchor displacement; The hydraulic valve regulating module (200) includes: An electro-hydraulic proportional multi-way valve (210) having a plurality of plate valves, the electro-hydraulic proportional multi-way valve (210) being configured to drive the opening or closing of each of its internal plate valves according to the regulation strategy; The balance valve group (220) includes several independent balance valves. The oil inlet of each balance valve is connected to the corresponding plate valve in the electro-hydraulic proportional multi-way valve (210), and the oil outlet of each balance valve is connected to the corresponding cylinder in the cylinder adjustment module (300). The balance valve group (220) is configured to balance the load of the corresponding plate valve in the electro-hydraulic proportional multi-way valve (210).

2. The hydraulic control system for a plugging device according to claim 1, characterized in that, The hydraulic cylinder adjustment module (300) includes: An anchoring cylinder (310) is connected to its corresponding balance valve group (220). The displacement sensor (120) is installed on the anchoring cylinder (310). The anchoring cylinder (310) is configured to anchor the plug at a specified position according to the opening or closing of the electro-hydraulic proportional multi-way valve (210) and the corresponding balance valve group (220). A sealing cylinder assembly (320) includes several independent cylinders, each of which is connected to its corresponding balance valve assembly (220). The two nearest adjacent sealing cylinder assemblies (320) are connected to each other. The sealing cylinder assembly (320) is configured to seal the plug in the pipeline by opening or closing the electro-hydraulic proportional multi-way valve (210) and the corresponding balance valve assembly (220).

3. The hydraulic control system for a plugging device according to claim 2, characterized in that, The sealing cylinder assembly (320) includes a first sealing cylinder (321), a second sealing cylinder (322), a third sealing cylinder (323), a fourth sealing cylinder (324), a fifth sealing cylinder (325), and a sixth sealing cylinder (326). The first sealing cylinder (321), the second sealing cylinder (322), the third sealing cylinder (323), the fourth sealing cylinder (324), the fifth sealing cylinder (325), and the sixth sealing cylinder (326) are evenly arranged on the outer wall of the plugger; The first sealing cylinder (321), the second sealing cylinder (322), the third sealing cylinder (323), the fourth sealing cylinder (324), the fifth sealing cylinder (325), and the sixth sealing cylinder (326) are respectively connected to the corresponding balance valves in the balance valve group (220); The first sealing cylinder (321) and the second sealing cylinder (322) move in the same way, the third sealing cylinder (323) and the fourth sealing cylinder (324) move in the same way, and the fifth sealing cylinder (325) and the sixth sealing cylinder (326) move in the same way. The movement includes the extension and retraction of the sealing cylinder.

4. The hydraulic control system for a plugging device according to claim 3, characterized in that, The balancing valve assembly (220) includes: The first balance valve (221) is connected to the anchoring cylinder (310) at its oil outlet end. The second balance valve (222) is connected to the first sealing cylinder (321) at its oil outlet end. The third balance valve (223) is connected to the second sealing cylinder (322) at its oil outlet end. The fourth balance valve (224) is connected to the third sealing cylinder (323) at its oil outlet end. The fifth balance valve (225) is connected to the fourth sealing cylinder (324) at its oil outlet end. The sixth balance valve (226) is connected to the fifth sealing cylinder (325) at its oil outlet end. The seventh balance valve (227) is connected to the sixth sealing cylinder (326) at its oil outlet end.

5. A hydraulic control system for a plugging device according to claim 4, characterized in that, The electro-hydraulic proportional multi-way valve (210) includes: First connector (211), the oil inlet end of which is connected to the oil supply module (400); The first plate valve (212) has its inlet end connected to the outlet end of the first connector (211), and its outlet end is connected to the first balance valve (221). The second valve (213) has its inlet end connected to the outlet end of the first valve (211), and its outlet end is connected to the third balance valve (223) and the second balance valve (222) respectively. The third valve (214) has its inlet end connected to the outlet end of the first valve (211), and its outlet end is connected to the fifth balance valve (225) and the fourth balance valve (224) respectively. The fourth valve (215) has its inlet end connected to the outlet end of the first connector (211), and its outlet end is connected to the seventh balance valve (227) and the sixth balance valve (226) respectively. Tail connector (216) is provided at the beginning connector (211) and is connected to the end of the pipes of the first valve (212), the second valve (213), the third valve (214) and the fourth valve (215).

6. A hydraulic control system for a plugging device according to claim 5, characterized in that, The first connection (211) includes a three-way flow control valve (2111), a first overflow valve (2112), a pilot oil filter (2113), and a pilot oil pressure reducing valve (2114); the pilot oil pressure reducing valve (2114) is connected to the oil supply module (400), the pilot oil filter (2113), the pilot oil pressure reducing valve (2114), and the three-way flow control valve (2111) are connected in sequence, and the first overflow valve (2112) is connected in parallel between the pilot oil filter (2113) and the three-way flow control valve (2111).

7. A hydraulic control system for a plugging device according to claim 6, characterized in that, The first plate valve (212) includes a first two-way flow control valve (2121), a second relief valve (2122), a first main valve core (2123), and a first buffer replenishing valve (2124). The first two-way flow control valve (2121), the first main valve core (2123), and the first buffer replenishing valve (2124) are connected in sequence, and the second relief valve (2122) is connected in parallel at both ends of the first two-way flow control valve (2121). The internal structures of the first valve (212), the second valve (213), the third valve (214), and the fourth valve (215) are the same.

8. A hydraulic control system for a plugging device according to claim 7, characterized in that, The oil supply module (400) includes: Oil tank (410), wherein hydraulic oil is stored in oil tank (410); Oil bladder (420), the oil bladder (420) is disposed inside the oil tank (410), the oil bladder (420) is configured to squeeze hydraulic oil in the oil tank (410) into the hydraulic valve regulating module (200); An air filter (430) is disposed at the oil outlet of the oil tank (410) and is configured to prevent negative pressure from occurring in the oil tank (410). A return oil filter (440) is disposed at the upper end of the oil tank and is configured to filter the hydraulic oil returning from the hydraulic valve regulating module (200).

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