High-precision and rapid-response integrated device and method for hydroelectric power station speed regulation system

Abstract

This invention relates to the field of hydropower station speed control systems, and discloses a high-precision and rapid-response integrated device and method for hydropower station speed control systems. The device includes: a base plate, a base fixed to the upper surface of the base plate, and a control valve fixed to the upper surface of the base; an oil inlet pipe connected to one side flange of the control valve, a control component disposed inside the oil inlet pipe, and a venturi tube connected to the other side flange of the control valve, an auxiliary component disposed inside the venturi tube, and a power supply component disposed inside the venturi tube. The auxiliary component includes a drain pipe, the bottom end of which penetrates the interior of the venturi tube. Through the cooperation of the internal structures of the auxiliary component, the negative pressure suction generated when the fluid passes through the structure of the oil inlet pipe and venturi tube is used to pull piston one and piston two downward through the drain pipe, squeezing the hydraulic oil in the storage tank and forcibly accelerating it to be injected into the venturi tube through the injection pipe and nozzle.

Description

Technical Field

[0001] This invention relates to the field of hydropower station speed control systems, specifically to a high-precision and fast-response integrated device and method for hydropower station speed control systems. Background Technology

[0002] The speed control system of a hydropower station is the core hub for ensuring the safe, stable, and high-quality operation of the turbine generator unit. Traditional hydraulic speed control systems primarily rely on high-pressure oil to drive servo motors to control the opening of the turbine's guide vanes or nozzles, achieving real-time adjustment of the turbine's output and speed. Its core actuators typically convert electrical signals from a microprocessor-controlled electronic control unit into hydraulic signals via an electro-hydraulic servo valve, thereby driving the main pressure distribution valve. Over the past few decades, the control precision and reliability of speed control systems have significantly improved, and the widespread adoption of hydraulic control valves, long-distance oil pipelines, and standardized actuator designs constitutes a mature industrial application system. However, this mature technological approach is increasingly revealing its inherent physical limitations and structural defects when facing the high-frequency, high-dynamic regulation requirements of modern power grids.

[0003] In existing speed control systems, response speed remains a major bottleneck when handling sudden changes in generator unit response (such as primary frequency regulation and load shedding). When the control module requires hydraulic valves to open rapidly to deliver high-pressure oil to the relay, the high-pressure hydraulic oil has fluid inertia in long pipelines, requiring time to build up from a standstill to high-speed motion. This results in a lag in the hydraulic relay's action within the initial tens of milliseconds, even though the valve opens instantaneously, making it unable to quickly establish the required driving force. This inertial delay in the hydraulic transmission chain prevents the generator unit from keeping up with drastic changes in grid load in a very short time, directly affecting the rapid response of the speed control system. Especially under conditions requiring instantaneous high torque output, its dynamic performance is unsatisfactory.

[0004] Furthermore, current speed control systems face structural contradictions in achieving precise regulation. Standard control valves and their drive mechanisms are typically designed for large flow rates and long strokes, making it difficult to accommodate micron-level fine adjustments. When making small-amplitude opening adjustments, not only is the mechanical transmission backlash of the drive mechanism prone to introducing errors and creating adjustment dead zones, but when oil flows through a large-flow valve port, fluid shearing and pressure pulsation can easily cause slight valve core chatter or overshoot. To suppress these unstable factors, traditional solutions usually rely on complex electronic control algorithms for compensation, but this compensation method has limitations in real-time performance, anti-interference capability, and robustness. Therefore, how to eliminate transmission errors, suppress valve core chatter, and improve the accuracy of fine adjustments and the stability of large movements from a physical level through innovative mechanical structures without changing the core control valve is a pressing technical challenge that needs to be solved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an integrated device and method for high precision and rapid response in hydropower station speed regulation systems. This solves the problem that when the speed regulation system needs to be started up rapidly, the initial flow response is delayed due to the inertia of hydraulic oil in long pipelines, which fails to meet the unit's rapid response requirements.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-precision and rapid-response integrated device for a hydropower station speed regulation system, comprising: a base plate, a base fixed to the upper surface of the base plate, and a control valve fixed to the upper surface of the base; an oil inlet pipe connected to one flange of the control valve, a control component disposed inside the oil inlet pipe, a venturi tube connected to the other flange of the control valve, an auxiliary component disposed inside the venturi tube, a power supply component disposed inside the venturi tube, and the auxiliary component including a drain pipe, the bottom end of which penetrates the interior of the venturi tube. The unit has a cylindrical cavity fixed at the end of the drainage pipe. One end of a return spring is fixed at the top of the inner cavity of the cylindrical cavity, and a piston is fixed at the other end of the return spring. An exhaust pipe passes through the bottom of the cylindrical cavity, and a storage tank passes through the bottom of the exhaust pipe. One end of multiple return springs is fixed at the top of the inner cavity of the storage tank, and a piston is fixed at the other end of the return spring. An injection pipe passes through the outer side of the storage tank, and a nozzle is fixed at the end of the injection pipe. The outer wall of the nozzle passes through the interior of a venturi tube. A one-way valve is provided on the drainage pipe, the exhaust pipe, and the injection pipe.

[0007] Preferably, the outer wall of the storage box is fixed with a support plate, and the outer wall of the support plate is fixed to the outer wall of the venturi tube.

[0008] Preferably, a hydraulic cylinder passes through the control valve, an electromagnetic damping sleeve is fixed on the control valve, the outer wall of the electromagnetic damping sleeve is disposed on the outer wall of the valve stem, and a control module is electrically connected to the outer wall of the control valve.

[0009] Preferably, the power supply component includes a connecting block, the upper surface of which is fixed to the inner top of the venturi tube.

[0010] Preferably, a turbine rotates below the connecting block, a driving gear is fixed inside the turbine, a connecting gear rotates on the outer wall of the connecting block, a driven gear is fixed on the outer wall of the connecting gear, the driven gear meshes with the driving gear, a generator is fixed on the venturi tube, a transmission gear is fixed at the input end of the generator, the transmission gear meshes with the connecting gear, and the generator is electrically connected to the electromagnetic damping sleeve.

[0011] Preferably, the control component includes a protective shell, the inner side of which is fixed to the outer wall of the oil inlet pipe, and a connecting pipe is fixed to the outer wall of the oil inlet pipe.

[0012] Preferably, a fixing block is fixed to the top end of the connecting pipe, a drive motor is fixed to the lower surface of the fixing block, a gear one is fixed to the drive end of the drive motor, a gear two and a gear ring are rotatably mounted on the outer wall of the connecting pipe, the gear two meshes with the gear one, a plurality of teeth are fixed to the outer wall of the gear ring, the teeth mesh with the gear two, a plurality of rotating shafts are rotatably mounted on the outer wall of the connecting pipe, a gear three is fixed to the outer wall of each rotating shaft, the gear three meshes with the inner side of the gear ring, and a baffle is fixed to the outer wall of each rotating shaft.

[0013] Preferably, the outer walls of the oil inlet pipe and the venturi pipe are rotatably equipped with connecting plates, the outer walls of the oil inlet pipe and the venturi pipe are fixed with pawls, and the outer walls of the connecting plates are fixed with ratchet wheels, which mesh with the pawls.

[0014] Preferably, hinge blocks one are fixed on both sides of the connecting plate, a damper is fixed inside the hinge block one, and a hinge block two is fixed at the bottom end of the damper. The lower surface of the hinge block two is fixed to the upper surface of the base plate.

[0015] The method for using the high-precision and fast-response integrated device for hydropower station speed regulation system includes the following steps:

[0016] First, fix the base plate to the working surface, install the control valve on it through the base, and connect the oil inlet pipe and venturi pipe to the two sides of the control valve with flanges respectively. Rotate the connecting plate and use the engagement of the pawl and ratchet to adjust the pipe angle and lock it. Then, flexibly connect the pipe to the base plate through hinge block one, damper and hinge block two to absorb vibration. Finally, complete the electrical connection between the control module and the control valve, the drive motor in the control component and the electromagnetic damping sleeve that is electrically connected to the generator to complete the initialization of the device.

[0017] Next, when the system needs to make minute flow adjustments, the control module sends a command to the drive motor inside the protective shell. The drive motor meshes with a fixed gear one to rotate a gear two mounted on the connecting pipe. The gear two then meshes with a gear ring through the teeth on the outer wall. The inner side of the gear ring meshes with gear three on multiple rotating shafts. Through this multi-stage precision transmission, the rotating shaft and the fixed baffle on it drive the hydraulic cylinder in the control valve to perform high-resolution displacement drive, thereby achieving precise adjustment.

[0018] Then, when the system needs a rapid response, the control valve opens wide, and the negative pressure generated by the oil flow in the venturi tube acts on the cylindrical cavity through the drain tube in the auxiliary component, pulling piston one down against the elastic force of return spring one, and driving piston two down synchronously against the elastic force of multiple return springs two through the vent pipe, thereby squeezing the oil in the storage tank fixed by the support plate, causing it to open the one-way valve set on the injection pipe, and being injected at high speed into the main channel of the venturi tube through the nozzle to compensate for the inertia of the oil flow;

[0019] Finally, as the oil flows through, the turbine fixed by the connecting block in the power supply component is driven to rotate. The driving gear inside meshes with the driven gear, driving the connecting gear to rotate. The connecting gear then meshes with the transmission gear, thereby driving the generator to generate electricity. The generated current is delivered in real time to the electromagnetic damping sleeve set on the valve stem of the control valve, which generates an adaptive damping force according to the change of flow rate to suppress the overshoot oscillation caused by excessive movement of the valve core and achieve steady-state locking of the system.

[0020] This invention provides an integrated device and method for high-precision and rapid response in a hydropower station speed regulation system. It offers the following advantages:

[0021] 1. This invention, through the cooperation between the internal structures of the auxiliary components, achieves the effect of utilizing the negative pressure suction generated when the fluid passes through the Venturi tube structure of the oil inlet pipe, pulling piston one and piston two downward through the guide pipe, squeezing the hydraulic oil in the storage tank and forcibly accelerating it through the oil injection pipe and nozzle to be injected into the Venturi tube. This solves the problem that when the speed regulation system needs to start up rapidly, the initial flow response is delayed due to the flow inertia of the hydraulic oil in the long pipeline, which cannot meet the unit's rapid response requirements.

[0022] 2. This invention, through the cooperation between the power supply component and the electromagnetic damping sleeve, achieves the conversion of the kinetic energy of the oil flowing through the pipeline into mechanical energy via a turbine, and then drives a generator to generate electricity via a gear set, providing the electromagnetic damping sleeve with an excitation current that varies with the flow rate to generate an adaptive damping force. This solves the problem that when the control valve is dealing with high flow conditions or during load shedding, the valve core is prone to overshoot or reciprocating oscillation due to excessive motion inertia, which affects the stability of the speed control system.

[0023] 3. This invention achieves high-resolution mechanical drive of the control valve opening by controlling the coordination between the internal structures of the control components. This is achieved by using a motor to drive the gear ring and the rotating shaft through a multi-stage precision transmission of gear one, gear two and gear three. Combined with the limiting and guiding of the baffle, this solves the problem that existing speed control devices have obvious dead zones due to large mechanical transmission backlash or insufficient driving accuracy when adjusting small flow rates, making it difficult to achieve precise power control. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a schematic diagram of the control valve part of the present invention;

[0026] Figure 3 This is a schematic diagram of the venturi tube portion of the present invention;

[0027] Figure 4This is a schematic diagram of the auxiliary components of the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of the venturi tube of the present invention;

[0029] Figure 6 This is a schematic diagram of the protective shell structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0031] Figure 8 This is a schematic diagram of the baffle portion of the present invention;

[0032] Figure 9 This is a schematic diagram of the ratchet portion of the present invention.

[0033] The components include: 1. Base plate; 2. Base; 3. Control valve; 4. Hydraulic cylinder; 5. Control module; 6. Oil inlet pipe; 7. Control components; 701. Protective shell; 702. Connecting pipe; 703. Fixing block; 704. Drive motor; 705. Gear 1; 706. Gear 2; 707. Gear ring; 708. Gear teeth; 709. Rotating shaft; 710. Baffle; 711. Gear 3; 8. Venturi tube; 9. Auxiliary components; 901. Drainage pipe; 902. Cylindrical cavity; 903. Return spring 1; 904. Piston 1; 905. Air outlet. Pipe; 906, Support plate; 907, Storage tank; 908, Return spring II; 909, Piston II; 910, Injection pipe; 911, Nozzle; 912, One-way valve; 10, Power supply assembly; 1001, Connecting block; 1002, Turbine; 1003, Drive gear; 1004, Driven gear; 1005, Connecting gear; 1006, Transmission gear; 1007, Generator; 11, Connecting plate; 12, Electromagnetic damping sleeve; 13, Pawl; 14, Ratchet; 15, Hinge block I; 16, Damper; 17, Hinge block II. Detailed Implementation

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see the appendix Figure 1 - Appendix Figure 4This invention provides a high-precision and rapid-response integrated device for a hydropower station speed regulation system, comprising: a base plate 1, a base 2 fixed to the upper surface of the base plate 1, and a control valve 3 fixed to the upper surface of the base 2; an oil inlet pipe 6 is connected to one side flange of the control valve 3, a control component 7 is disposed inside the oil inlet pipe 6, a venturi tube 8 is connected to the other side flange of the control valve 3, an auxiliary component 9 is disposed inside the venturi tube 8, a power supply component 10 is disposed inside the venturi tube 8, the auxiliary component 9 includes a drain pipe 901, the bottom end of the drain pipe 901 penetrates the interior of the venturi tube 8, a cylindrical cavity 902 is fixed to the end of the drain pipe 901, and one end of a return spring 903 is fixed to the top of the inner cavity of the cylindrical cavity 902 for resetting. A piston 904 is fixed to the other end of spring 903. An exhaust pipe 905 passes through the bottom end of the cylindrical cavity 902. A storage tank 907 passes through the bottom end of the exhaust pipe 905. One end of a plurality of return springs 908 is fixed to the top of the storage tank 907. A piston 909 is fixed to the other end of the return springs 908. An injection pipe 910 passes through the outside of the storage tank 907. A nozzle 911 is fixed to the end of the injection pipe 910. The outer wall of the nozzle 911 passes through the inside of the venturi tube 8. A one-way valve 912 is provided on the drain pipe 901, the exhaust pipe 905 and the injection pipe 910. A support plate 906 is fixed to the outer wall of the storage tank 907. The outer wall of the support plate 906 is fixed to the outer wall of the venturi tube 8.

[0036] Specifically, when the control valve 3 opens instantaneously, causing the oil flow in the venturi tube 8 to accelerate and generate negative pressure, the drain pipe 901 quickly converts this negative pressure signal into mechanical force to drive piston 1 904 and piston 2 909, thereby forcibly pressurizing the spare hydraulic oil in the storage tank 907. This forces a high-pressure supplementary oil flow through the nozzle 911 into the main channel. Meanwhile, the return spring 1 903 and return spring 2 908 provide the power for piston group reset and automatic re-energy storage through the one-way valve 912. The beneficial effect of this design is that it establishes a feedforward compensation mechanism based on fluid adaptation, which can inject supplementary oil flow when the main hydraulic system experiences a response delay due to inertia. This effectively shortens the response lag time between the command and the actual flow rate establishment, significantly improving the dynamic response performance of the system. More importantly, the operation of this auxiliary component 9 is completely independent of any external electronic control unit. Its triggering and response intensity are entirely determined by the adaptive flow field state. This not only gives the system extremely high operational reliability and good anti-electromagnetic interference capability, but also ensures high reliability of the rapid response function under extreme operating conditions.

[0037] Please see the appendix Figure 1 - Appendix Figure 5A hydraulic cylinder 4 passes through the control valve 3. An electromagnetic damping sleeve 12 is fixed on the control valve 3. The outer wall of the electromagnetic damping sleeve 12 is set on the outer wall of the valve stem. A control module 5 is electrically connected to the outer wall of the control valve 3. The power supply component 10 includes a connecting block 1001. The upper surface of the connecting block 1001 is fixed to the inner top of the venturi tube 8. A turbine 1002 rotates below the connecting block 1001. A drive gear 1003 is fixed inside the turbine 1002. A connecting gear 1005 rotates on the outer wall of the connecting block 1001. A driven gear 1004 is fixed on the outer wall of the connecting gear 1005. The driven gear 1004 and the drive gear 1003 mesh. A generator 1007 is fixed on the venturi tube 8. A transmission gear 1006 is fixed at the input end of the generator 1007. The transmission gear 1006 and the connecting gear 1005 mesh. The generator 1007 and the electromagnetic damping sleeve 12 are electrically connected.

[0038] Specifically, the control valve 3 is operated by an internal hydraulic cylinder 4 and electrically controlled by an external control module 5. To improve its dynamic stability, an electromagnetic damping sleeve 12 is installed on the valve stem of the control valve 3. The power for this sleeve is provided by a power supply component 10 located inside the venturi tube 8. During operation, the fluid inside the tube drives the turbine 1002, which is fixed below the connecting block 1001, to rotate. The turbine 1002 rotates via an internal driving gear 1003, a meshing driven gear 1004, and a connecting gear 10. The speed-increasing gear system, consisting of gear 05 and transmission gear 1006, transmits mechanical energy to generator 1007. Generator 1007 converts mechanical energy into electrical energy, and its output current is proportional to the fluid flow rate and is directly supplied to electromagnetic damping sleeve 12. Thus, the damping force generated by electromagnetic damping sleeve 12 is adaptively related to the flow rate: when the valve moves quickly and the flow rate is high, forced dynamic damping is generated to suppress the inertia of the valve core and prevent overshoot and oscillation; when fine-tuning is performed and the flow rate is low, the damping force is weakened and does not affect fine adjustment.

[0039] Please see the appendix Figure 6 - Appendix Figure 9The control component 7 includes a protective shell 701, the inner side of which is fixed to the outer wall of the oil inlet pipe 6. A connecting pipe 702 is fixed to the outer wall of the oil inlet pipe 6. A fixing block 703 is fixed to the top of the connecting pipe 702. A drive motor 704 is fixed to the lower surface of the fixing block 703. A gear 705 is fixed to the drive end of the drive motor 704. A gear 706 and a gear ring 707 rotate on the outer wall of the connecting pipe 702. The gear 706 meshes with the gear 705. Multiple teeth 708 are fixed to the outer wall of the gear ring 707. The teeth 708 mesh with the gear 706. Multiple rotating shafts 709 rotate on the outer wall of the connecting pipe 702. Gear 3 711 is fixed to the outer wall of the rotating shaft 709. Gear 3 711 meshes with the inner side of the gear ring 707. Baffle 710 is fixed to the outer wall of the rotating shaft 709. Connecting plate 11 is rotatably attached to the outer wall of the oil inlet pipe 6 and the venturi pipe 8. Pawl 13 is fixed to the outer wall of the oil inlet pipe 6 and the venturi pipe 8. Ratchet 14 is fixed to the outer wall of the connecting plate 11. Ratchet 14 meshes with pawl 13. Hinge block 15 is fixed to both sides of the connecting plate 11. Damper 16 is fixed inside the hinge block 15. Hinge block 2 17 is fixed to the bottom end of the damper 16. The lower surface of hinge block 2 17 is fixed to the upper surface of the base plate 1.

[0040] Specifically, the drive motor 704, through a multi-stage precision gear transmission system consisting of gear one 705, gear two 706, a toothed ring 707 with teeth 708, and gear three 711, converts the motor's rotational motion into a high-resolution, backlash-free drive output from the shaft 709. This output is ultimately used to precisely adjust the opening of the control valve 3 at the micrometer level via the baffle 710. The beneficial effect of this design is that it fundamentally solves the adjustment dead zone problem caused by insufficient transmission backlash and drive precision in traditional actuators through a complex mechanical transmission structure. This allows the system to achieve extremely fine flow control, which is of great significance for operating conditions requiring stability at a specific power point. Simultaneously, the locking mechanism, consisting of the connecting plate 11, pawl 13, and ratchet 14, works in conjunction with flexible support structures including dampers 16, such as hinge block one 15 and hinge block two 17. This not only provides stable installation and precise angular positioning for the pipeline but, more importantly, achieves physical isolation between the pipeline system and the control actuator. This effectively absorbs and dissipates vibration energy from fluid pulsation within the pipeline and from the external environment, preventing vibration from interfering with the high-precision control component 7, thereby ensuring the long-term stability and control accuracy of the entire device under complex operating conditions.

[0041] Please see the appendix Figure 1 - Appendix Figure 9 This invention provides a method for using a high-precision and fast-response integrated device for a hydropower station speed regulation system, comprising the following steps:

[0042] First, fix the base plate 1 to the working surface, install the control valve 3 on it through the base 2, and connect the oil inlet pipe 6 and the venturi pipe 8 to the two sides of the control valve 3 respectively through flanges. Rotate the connecting plate 11 and use the engagement of the pawl 13 and the ratchet 14 to adjust the pipe angle and lock it. Then, use the hinge block 15, damper 16 and hinge block 2 17 to flexibly connect the pipe to the base plate 1 to absorb vibration. Finally, complete the electrical connection between the control module 5 and the control valve 3, the drive motor 704 in the control component 7 and the electromagnetic damping sleeve 12 which is electrically connected to the generator 1007 to complete the initialization of the device.

[0043] Next, when the system needs to make a small flow adjustment, the control module 5 sends a command to the drive motor 704 inside the protective shell 701. The drive motor 704 meshes with the fixed gear 705 to rotate the gear 706 mounted on the connecting pipe 702. The gear 706 then meshes with the gear ring 707 through the teeth 708 on the outer wall. The inner side of the gear ring 707 meshes with the gear 711 on multiple rotating shafts 709. Through this multi-stage precision transmission, the rotating shaft 709 and the baffle 710 fixed on it drive the hydraulic cylinder 4 in the control valve 3 to perform high-resolution displacement drive, so as to achieve precise adjustment.

[0044] Then, when the system needs a rapid response, the control valve 3 opens significantly. The negative pressure generated by the oil flow in the venturi tube 8 acts on the cylindrical cavity 902 through the drain pipe 901 in the auxiliary component 9, pulling the piston 904 down against the elastic force of the return spring 903. It also drives the piston 909 to move down synchronously against the elastic force of multiple return springs 908 through the vent pipe 905, thereby squeezing the oil in the storage tank 907 fixed by the support plate 906, causing it to open the one-way valve 912 set on the injection pipe 910, and be injected at high speed into the main channel of the venturi tube 8 through the nozzle 911 to compensate for the inertia of the oil flow.

[0045] Finally, as the oil flows through, the turbine 1002, which is fixed by the connecting block 1001 in the power supply component 10, is driven to rotate. The driving gear 1003 inside it meshes with the driven gear 1004, driving the connecting gear 1005 to rotate. The connecting gear 1005 then meshes with the transmission gear 1006, thereby driving the generator 1007 to generate electricity. The generated current is delivered in real time to the electromagnetic damping sleeve 12 set on the valve stem of the control valve 3, which generates an adaptive damping force according to the change of flow rate, so as to suppress the overshoot oscillation caused by excessive movement of the valve core and realize the steady-state locking of the system.

Claims

1. A high-precision and fast-response integrated device for the speed regulation system of a hydropower station, characterized in that, include: A base plate (1) is provided with a base (2) fixed on its upper surface, and a control valve (3) is fixed on the upper surface of the base (2). An oil inlet pipe (6) is connected to one side flange of the control valve (3), and a control component (7) is provided inside the oil inlet pipe (6). A venturi tube (8) is connected to the other side flange of the control valve (3), and an auxiliary component (9) is provided inside the venturi tube (8). A power supply component (10) is provided inside the venturi tube (8). The auxiliary component (9) includes a drain pipe (901), the bottom end of which penetrates the inside of the venturi tube (8). A cylindrical cavity (902) is fixed at the end of the drain pipe (901), and a return spring (90) is fixed at the top of the inner cavity (902). 3) One end of the return spring (903) is fixed with piston (904), the bottom end of the cylindrical cavity (902) is connected to the air outlet pipe (905), the bottom end of the air outlet pipe (905) is connected to the storage tank (907), the top of the storage tank (907) is fixed with one end of multiple return springs (908), the other end of the return springs (908) is fixed with piston (909), the outside of the storage tank (907) is connected to the fuel injection pipe (910), the end of the fuel injection pipe (910) is fixed with a nozzle (911), the outer wall of the nozzle (911) is connected to the inside of the venturi tube (8), and a one-way valve (912) is provided on the drain pipe (901), the air outlet pipe (905) and the fuel injection pipe (910). A hydraulic cylinder (4) runs through the control valve (3), an electromagnetic damping sleeve (12) is fixed on the control valve (3), the outer wall of the electromagnetic damping sleeve (12) is set on the outer wall of the valve stem, and a control module (5) is electrically connected to the outer wall of the control valve (3). The power supply assembly (10) includes a connecting block (1001), the upper surface of which is fixed to the inner top of the venturi tube (8); A turbine (1002) rotates below the connecting block (1001). A drive gear (1003) is fixed inside the turbine (1002). A connecting gear (1005) rotates on the outer wall of the connecting block (1001). A driven gear (1004) is fixed on the outer wall of the connecting gear (1005). The driven gear (1004) meshes with the drive gear (1003). A generator (1007) is fixed on the venturi tube (8). A transmission gear (1006) is fixed at the input end of the generator (1007). The transmission gear (1006) meshes with the connecting gear (1005). The generator (1007) is electrically connected to the electromagnetic damping sleeve (12).

2. The high-precision and fast-response integrated device for the hydropower station speed regulation system according to claim 1, characterized in that, The outer wall of the storage box (907) is fixed with a support plate (906), and the outer wall of the support plate (906) is fixed to the outer wall of the venturi tube (8).

3. The high-precision and fast-response integrated device for the hydropower station speed regulation system according to claim 1, characterized in that, The control component (7) includes a protective shell (701), the inner side of which is fixed to the outer wall of the oil inlet pipe (6), and a connecting pipe (702) is fixed to the outer wall of the oil inlet pipe (6).

4. The high-precision and fast-response integrated device for the hydropower station speed regulation system according to claim 3, characterized in that, A fixing block (703) is fixed to the top of the connecting pipe (702). A drive motor (704) is fixed to the lower surface of the fixing block (703). A gear (705) is fixed to the drive end of the drive motor (704). A gear (706) and a gear ring (707) rotate on the outer wall of the connecting pipe (702). The gear (706) meshes with the gear (705). Multiple teeth (708) are fixed to the outer wall of the gear ring (707). The teeth (708) mesh with the gear (706). Multiple rotating shafts (709) rotate on the outer wall of the connecting pipe (702). A gear (711) is fixed to the outer wall of each rotating shaft (709). The gear (711) meshes with the inner side of the gear ring (707). A baffle (710) is fixed to the outer wall of each rotating shaft (709).

5. The high-precision and fast-response integrated device for the hydropower station speed regulation system according to claim 1, characterized in that, The outer walls of the oil inlet pipe (6) and the venturi pipe (8) are both equipped with rotatable connecting plates (11), and the outer walls of the oil inlet pipe (6) and the venturi pipe (8) are both fixed with pawls (13). The outer walls of the connecting plates (11) are both fixed with ratchet wheels (14), and the ratchet wheels (14) and the pawls (13) mesh with each other.

6. The high-precision and fast-response integrated device for the hydropower station speed regulation system according to claim 5, characterized in that, Hinged blocks (15) are fixed on both sides of the connecting plate (11). A damper (16) is fixed inside the hinge block (15). A hinge block (17) is fixed at the bottom of the damper (16). The lower surface of the hinge block (17) is fixed to the upper surface of the base plate (1).

7. A method of using the integrated high-precision and fast-response device for a hydropower station speed regulation system, as described in any one of claims 1-6, characterized in that... Includes the following steps: First, fix the base plate (1) to the working surface, install the control valve (3) on it through the base (2), and connect the oil inlet pipe (6) and the venturi pipe (8) to the two sides of the control valve (3) respectively through flanges. Rotate the connecting plate (11) and use the engagement of the pawl (13) and the ratchet (14) to adjust the pipe angle and lock it. Then, use the hinge block one (15), damper (16) and hinge block two (17) to flexibly connect the pipe to the base plate (1) to absorb vibration. Finally, complete the electrical connection between the control module (5) and the control valve (3), the drive motor (704) in the control component (7) and the electromagnetic damping sleeve (12) that is electrically connected to the generator (1007) to complete the initialization of the device. Next, when the system needs to make a small flow adjustment, the control module (5) sends a command to the drive motor (704) inside the protective shell (701). The drive motor (704) meshes with the gear two (706) installed on the connecting pipe (702) through the fixed gear one (705). The gear two (706) then meshes with the gear ring (707) through the teeth (708) on the outer wall. The inner side of the gear ring (707) meshes with the gear three (711) on multiple rotating shafts (709). Through this multi-stage precision transmission, the rotating shaft (709) and the baffle (710) fixed on it drive the hydraulic cylinder (4) in the control valve (3) to perform high-resolution displacement drive, so as to achieve precise adjustment. Then, when the system needs to respond quickly, the control valve (3) opens wide, and the negative pressure generated by the oil flow in the venturi tube (8) acts on the cylindrical cavity (902) through the drain pipe (901) in the auxiliary component (9), pulling the piston one (904) to overcome the elastic force of the return spring one (903) and drive the piston two (909) to overcome the elastic force of multiple return springs two (908) to move down synchronously through the air outlet pipe (905), thereby squeezing the oil in the storage tank (907) fixed by the support plate (906), causing it to open the one-way valve (912) set on the injection pipe (910), and be injected at high speed into the main channel of the venturi tube (8) through the nozzle (911) to compensate for the inertia of the oil flow; Finally, when the oil flows through, the turbine (1002) fixed by the connecting block (1001) in the power supply component (10) is driven to rotate. The driving gear (1003) inside it meshes with the driven gear (1004), which drives the connecting gear (1005) to rotate. The connecting gear (1005) then meshes with the transmission gear (1006), thereby driving the generator (1007) to generate electricity. The generated current is delivered in real time to the electromagnetic damping sleeve (12) set on the valve stem of the control valve (3), which generates an adaptive damping force with the change of flow rate to suppress the overshoot oscillation caused by excessive valve core movement and realize the steady-state locking of the system.

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