Energy-saving control device and method for intelligent occluder during operation

Abstract

The application relates to the technical field of intelligent plugging, and discloses an energy-saving control device and method of an intelligent plugging device in an operation process, wherein the energy-saving control device comprises a mounting pipe which is in transmission connection with one end of the intelligent plugging device; liquid inlet and outlet openings for fluid inflow and outflow are arranged on the mounting pipe; an impeller and an energy-saving mechanism are arranged in the mounting pipe; the impeller is rotatably arranged in the mounting pipe; the rotating shaft of the impeller is parallel to the length direction of the mounting pipe; the energy-saving mechanism comprises a power generation motor and a capacitor; the power generation motor and the intelligent plugging device are electrically connected with the capacitor; the power generation motor is in transmission connection with the impeller; when fluid pushes the impeller to rotate, the impeller drives the power generation motor to work and generate electricity. The application is used for solving the problems of short endurance time and weak endurance capacity of a pipeline plugging device in the prior art.

Description

Technical Field

[0001] This invention relates to the field of intelligent plugging technology, and in particular to an energy-saving control device and method for intelligent plugging devices during operation. Background Technology

[0002] In the pipeline transportation industry, plugs are key equipment for ensuring the safe operation of pipelines. They are mainly used to temporarily seal pipelines during maintenance, emergency repairs, or rerouting to prevent media leakage. Traditional pipeline plugs suffer from short operating times and weak endurance, which severely restricts the working efficiency and engineering applications of intelligent plugs.

[0003] On the one hand, external power supply requires laying cables, which not only increases construction difficulty and cost, but also makes the cables susceptible to damage in complex field environments or underground pipelines, leading to the malfunction of the plugging device and posing a significant safety hazard. On the other hand, plugging devices that rely on battery power require regular manual replacement due to the limited battery capacity, which not only increases maintenance workload and cost, but may also cause equipment downtime due to untimely replacement, affecting the normal progress of pipeline operations. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide an energy-saving control device and method for intelligent plugging devices during operation, thereby solving the problems of short operating time and weak operating capacity of pipeline plugging devices in the prior art.

[0005] The present invention solves the above-mentioned technical problems through the following technical means:

[0006] An energy-saving control device for an intelligent plugging device during operation includes an installation pipe driven to one end of the intelligent plugging device. The installation pipe is provided with an inlet and an outlet for fluid inflow and outflow. An impeller and an energy-saving mechanism are installed inside the installation pipe. The impeller is rotatably installed inside the installation pipe, and the rotation axis of the impeller is parallel to the length direction of the installation pipe. The energy-saving mechanism includes a generator motor and a capacitor. The generator motor and the intelligent plugging device are both electrically connected to the capacitor. The generator motor is driven to the impeller. When the fluid drives the impeller to rotate, the impeller drives the generator motor to generate electricity.

[0007] By setting up the above structure, the intelligent plugging device is provided with operating power, eliminating the need for an external power source or battery replacement, thus achieving energy-saving operation of the system itself.

[0008] Furthermore, a control unit is installed inside the mounting tube, and a sensor group is installed on the outside of the liquid inlet end of the mounting tube. Both the generator motor and the sensor group are electrically connected to the control unit. When the sensor group detects an abnormal flow state of the fluid, the control unit controls the generator motor to drive the impeller to rotate, and the impeller applies a thrust to the fluid in the opposite direction to its flow.

[0009] By setting up the above structure, the fluid flow status (such as flow rate, pressure fluctuations, etc.) can be monitored in real time by the sensor group. When an abnormality (such as blockage, eddy current, backflow, etc.) is detected, the control unit can switch the generator motor to electric mode, drive the impeller to rotate in the opposite direction, and apply a thrust to the fluid in the opposite direction of flow, thereby actively intervening in the flow state, suppressing abnormal disturbances, and reducing the impact of fluid vibration on the pipeline life.

[0010] Furthermore, the liquid inlet is located at one end of the installation tube near the intelligent plugger, and an opening and closing mechanism is installed at the liquid inlet end. The opening and closing mechanism is electrically connected to the control unit and is used to change the opening degree of the liquid inlet.

[0011] By setting up the above structure and adjusting the opening of the inlet, the flow rate of the fluid flowing into the installation pipe can be changed, thereby creating a controllable pressure difference on both sides of the intelligent plug. This pressure difference acts on the energy-saving control device and is converted into a driving force along the pipeline direction, which pushes the intelligent plug and the energy-saving control device to move in the pipeline. The intelligent plug can be self-moved or positioned without the need for an additional traction mechanism.

[0012] Furthermore, the opening and closing mechanism includes a chassis, a top cover, an annular transmission plate, a micro motor, and multiple opening and closing blades. The chassis is fixedly connected to the liquid inlet end of the mounting pipe, and the top cover is fixedly connected to the side of the chassis away from the mounting pipe. The annular transmission plate is rotatably disposed between the chassis and the top cover. The micro motor is fixedly mounted on the chassis, and the annular transmission plate is drivenly connected to the micro motor. Multiple first sliding grooves are formed on the annular transmission plate, and multiple second sliding grooves are formed on the top cover. Each opening and closing blade is fixedly provided with a sliding rod, which slides in the corresponding first sliding groove, and the opening and closing blade slides in the corresponding second sliding groove.

[0013] By setting up the above structure, the micro motor drives the ring transmission plate to rotate, and through the cooperation of the first slide groove and the slide rod, all the opening and closing blades slide synchronously in the second slide groove, so as to achieve uniform, precise and rapid adjustment of the liquid inlet opening.

[0014] Furthermore, the outer wall of the installation tube is provided with a sealing mechanism, which is used to seal the gap between the outer wall of the installation tube and the inner wall of the fluid delivery pipe. The sealing mechanism includes two identical cup assemblies, which are respectively fixedly installed at both ends of the installation tube. Each cup assembly includes an isolation cup and a sealing cup, and a guide cup is provided on the cup assembly near the liquid inlet.

[0015] By setting up the above structure, and installing cup assemblies at both ends of the installation pipe, the annular gap between the outer wall of the installation pipe and the inner wall of the delivery pipe is effectively sealed, preventing fluid bypass leakage and ensuring that all fluid flows through the inside of the installation pipe, thus guaranteeing the flow rate basis for impeller power generation.

[0016] Furthermore, a clutch mechanism is provided between the generator motor and the impeller. The clutch mechanism is electrically connected to the control unit. When the capacitor is fully charged, the control unit controls the clutch mechanism to disengage, thereby disengaging the generator motor from the impeller.

[0017] By setting up the above structure, once the capacitor is fully charged, the control unit disengages the clutch mechanism, disconnecting the mechanical connection between the generator motor and the impeller. The impeller can then idle (or coast), and the generator motor is no longer driven, avoiding mechanical wear, copper losses, and iron losses caused by continuous rotor rotation, thus extending motor life and reducing energy consumption.

[0018] Furthermore, a gearbox is provided between the generator motor and the impeller. The gearbox includes a large gear and a small gear that mesh with each other. The impeller is driven by the small gear, and the generator motor is driven by the large gear.

[0019] By setting up the above structure, a sufficiently large torque can be provided to drive the generator motor to generate electricity.

[0020] Furthermore, multiple liquid outlets are provided, and the multiple liquid outlets are evenly distributed along the circumference of the mounting tube. A partition plate is fixedly provided on the side of the mounting tube away from the liquid inlet at the liquid outlet. The partition plate separates a waterproof mounting area from inside the mounting tube. The generator motor and the capacitor are both installed in the waterproof mounting area. A drive shaft is provided on the impeller. The drive shaft passes through the partition plate and is connected to the generator motor. The drive shaft and the partition plate are connected in a sealed rotatable connection.

[0021] By setting up the above structure, the generator motor, capacitor and fluid flowing through the impeller are completely isolated, avoiding liquid erosion and short circuit risks.

[0022] An energy-saving control method for an intelligent plugging device during operation includes:

[0023] The intelligent plug and energy-saving control device are placed inside the pipeline that transports the fluid;

[0024] The flow state parameters of the fluid inside the pipe are detected by a sensor array;

[0025] The fluid flow state parameters are compared with parameter thresholds;

[0026] When the fluid flow state parameters are less than or equal to the parameter threshold, the fluid drives the impeller to rotate, and the impeller drives the generator motor to generate electricity.

[0027] When the fluid flow state parameters are greater than the parameter threshold, the control unit controls the generator motor to drive the impeller to rotate, and the impeller applies a thrust to the fluid in the opposite direction to its flow.

[0028] When the intelligent plug needs to move forward, the control unit controls the opening and closing mechanism to reduce the opening of the inlet and increase the pressure difference of the fluid at both ends of the energy-saving control device. The pressure difference forces the intelligent plug and the energy-saving control device to move along the direction of fluid transport.

[0029] The beneficial effects of this invention are:

[0030] 1. This invention, by setting up an impeller and an energy-saving mechanism, enables the impeller to rotate when the fluid drives it, thereby driving the generator motor to generate electricity and providing power for the intelligent plugging device. This eliminates the need for an external power source or battery replacement, thus achieving energy-saving operation of the system itself.

[0031] 2. By setting up a control unit and a sensor group, when an abnormality (such as blockage, eddy current, backflow, etc.) is detected, the control unit can switch the generator motor to electric mode, drive the impeller to rotate in the opposite direction, and apply a thrust to the fluid in the opposite direction of flow, thereby actively intervening in the flow state, suppressing abnormal disturbances, and reducing the impact of fluid vibration on the pipeline life.

[0032] 3. By setting an opening and closing mechanism and adjusting the opening degree of the liquid inlet, the present invention can change the flow rate of the fluid flowing into the installation pipe, thereby forming a controllable pressure difference on the front and rear sides of the intelligent plug. This pressure difference acts on the energy-saving control device and is converted into a driving force along the pipeline direction, which pushes the intelligent plug and the energy-saving control device to move in the pipeline. The intelligent plug can achieve self-movement or positioning without the need for an additional traction mechanism. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural schematic diagram of an energy-saving control device for an intelligent plugging device during operation, according to the present invention.

[0034] Figure 2 This is a cross-sectional installation diagram of the energy-saving control device of the intelligent plugging device of the present invention during operation;

[0035] Figure 3 This is a schematic diagram of the disassembled structure of the opening and closing mechanism in the energy-saving control device of an intelligent plugging device during operation, according to the present invention. Figure 1 ;

[0036] Figure 4 This is a schematic diagram of the disassembled structure of the opening and closing mechanism in the energy-saving control device of an intelligent plugging device during operation, according to the present invention. Figure 2 ;

[0037] in,

[0038] 1. Pipeline;

[0039] 2. Installation pipe; 21. Liquid inlet; 22. Liquid outlet; 23. Divider plate;

[0040] 3. Sealing mechanism; 311. Isolation cup; 312. Sealing cup; 313. Guide cup;

[0041] 41. Impeller; 42. Energy-saving mechanism; 421. Generator motor; 422. Capacitor; 43. Control unit; 44. Sensor group;

[0042] 5. Opening and closing mechanism; 51. Chassis; 52. Top cover; 521. Second slide rail; 53. Annular transmission plate; 531. First slide rail; 54. Micro motor; 55. Opening and closing blade; 551. Slide rod;

[0043] 7. Clutch mechanism;

[0044] 8. Gearbox. Detailed Implementation

[0045] The technical solutions of 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.

[0046] Example 1: As Figures 1-4 As shown, this embodiment of an energy-saving control device for an intelligent plugging device during operation includes an installation pipe 2 drivenly connected to one end of the intelligent plugging device. The installation pipe 2 is provided with an inlet 21 and an outlet 22 for fluid inflow and outflow. An impeller 41 and an energy-saving mechanism 42 are disposed inside the installation pipe 2. The impeller 41 is rotatably installed inside the installation pipe 2, and the rotation axis of the impeller 41 is parallel to the length direction of the installation pipe 2. The energy-saving mechanism 42 includes a generator motor 421 and a capacitor 422. Both the generator motor 421 and the intelligent plugging device are electrically connected to the capacitor 422. The generator motor 421 is drivenly connected to the impeller 41.

[0047] In use, the installation pipe 2 is installed inside the pipe 1 along its length. The intelligent plug is driven and connected to the installation pipe 2. Specifically, the intelligent plug is driven and connected to the inlet 21 end of the installation pipe 2. Since the intelligent plug is a structure that is already fully disclosed in the prior art, it will not be described in detail further. The capacitor 422 supplies power to the intelligent plug and the energy-saving control device. When the fluid drives the impeller 41 to rotate, the impeller 41 drives the generator motor 421 to generate electricity. This provides the operating power for the intelligent plug, eliminating the need for an external power supply or battery replacement, thus achieving energy-saving operation of the system itself.

[0048] In this embodiment, a control unit 43 is provided inside the mounting tube 2. In this embodiment, the control unit 43 is a microcontroller, a single-chip microcomputer, etc. A sensor group 44 is provided on the outside of the liquid inlet end of the mounting tube 2. The generator motor 421 and the sensor group 44 are both electrically connected to the control unit 43.

[0049] In operation, the sensor group 44 monitors the flow state of the fluid within pipe 1 in real time. Specifically, the sensor group detects the fluid velocity signal and the fluid pressure signal. When the sensor group 44 detects an abnormality in the fluid flow state (pressure and velocity signals), the control unit 43 controls the generator motor 421 to drive the impeller 41 to rotate. The impeller 41 applies a thrust to the fluid in the opposite direction to its flow. This thrust can counteract the pressure wave or excitation force that causes vibration, thus achieving active vibration suppression. This achieves active intervention in the flow state, suppresses abnormal disturbances, and reduces the impact of fluid vibration on the pipe's lifespan.

[0050] In this embodiment, the inlet 21 is located at one end of the mounting pipe 2 near the intelligent plug. An opening and closing mechanism 5 is installed at the inlet 21 end, which is electrically connected to the control unit 43. The opening and closing mechanism 5 is used to change the opening degree of the inlet 21. In use, controlling the opening and closing mechanism 5 to work and adjusting the opening degree of the inlet can change the flow rate of the fluid flowing into the mounting pipe 2, thereby forming a controllable pressure difference on both sides of the intelligent plug. This pressure difference acts on the energy-saving control device and is converted into a driving force along the direction of the pipeline 1, pushing the intelligent plug and the energy-saving control device to move within the pipeline 1. The intelligent plug can move or be positioned by itself without the need for an additional traction mechanism.

[0051] In this embodiment, the opening and closing mechanism 5 includes a chassis 51, a top cover 52, an annular transmission plate 53, a micro motor 54, and multiple opening and closing blades 55. The chassis 51 is fixedly connected to the liquid inlet 21 end of the mounting pipe 2. The top cover 52 is fixedly connected to the side of the chassis 51 away from the mounting pipe 2. The annular transmission plate 53 is rotatably disposed between the chassis 51 and the top cover 52. The micro motor 54 is fixedly mounted on the chassis 51, and the annular transmission plate 53 is drively connected to the micro motor 54. Multiple first sliding grooves 531 are formed on the annular transmission plate 53, and multiple second sliding grooves 521 are formed on the top cover 52. Each opening and closing blade 55 is fixedly provided with a sliding rod 551. The sliding rod 551 slides in the corresponding first sliding groove 531, and the opening and closing blade 55 slides in the corresponding second sliding groove 521. In some other embodiments, the opening and closing mechanism 5 can also be set as a conventional gate valve. In this embodiment, by setting up an annular transmission plate 53, a micro motor 54 and multiple opening and closing blades 55, when the opening and closing mechanism 5 is working, the micro motor 54 drives the annular transmission plate 53 to rotate. Through the cooperation of the first sliding groove 531 and the sliding rod 551, all the opening and closing blades 55 slide synchronously in the second sliding groove 521, so as to achieve uniform, precise and rapid adjustment of the opening degree of the liquid inlet 21.

[0052] In this embodiment, a sealing mechanism 3 is provided on the outer wall of the installation pipe 2. The sealing mechanism 3 is used to seal the gap between the outer wall of the installation pipe 2 and the inner wall of the fluid delivery pipe. The sealing mechanism 3 includes two identical cup assemblies, which are fixedly installed at both ends of the installation pipe 2. Each cup assembly includes an isolation cup 311 and a sealing cup 312. A guide cup 313 is provided on the cup assembly near the liquid inlet 21. In use, it effectively seals the annular gap between the outer wall of the installation pipe 2 and the inner wall of the fluid delivery pipe 1, preventing fluid bypass leakage and ensuring that all fluid flows through the interior of the installation pipe 2, thus guaranteeing the flow rate basis for impeller power generation.

[0053] In this embodiment, a clutch mechanism 7 is provided between the generator motor 421 and the impeller 41. In this embodiment, the clutch mechanism 7 can be a conventional transmission clutch. The clutch mechanism 7 is electrically connected to the control unit 43. When the capacitor 422 is fully charged, the control unit 43 controls the clutch mechanism 7 to disengage, causing the generator motor 421 to disconnect from the impeller 41. After the capacitor 422 is fully charged, the control unit 43 disengages the clutch mechanism 7, breaking the transmission connection between the generator motor 421 and the impeller 41. The impeller 41 can then freely idle (or coast), and the generator motor 421 is no longer driven, avoiding mechanical wear, copper losses, and iron losses caused by continuous rotor rotation, extending motor life and reducing energy consumption.

[0054] In this embodiment, a gearbox 8 is provided between the generator motor 421 and the impeller 41. The gearbox 8 includes a large gear and a small gear that mesh with each other. The impeller 41 is driven by the small gear, and the generator motor 421 is driven by the large gear, so that the rotating impeller 41 can provide a sufficiently large torque to drive the generator motor 421 to generate electricity.

[0055] In this embodiment, multiple outlets 22 are provided, evenly distributed along the circumference of the mounting pipe 2. A partition plate 23 is fixedly installed on the side of the mounting pipe 2 away from the inlet 21 of the outlets 22. The partition plate 23 separates a waterproof mounting area from the inside of the mounting pipe 2. The generator motor 421 and capacitor 422 are both installed in the waterproof mounting area. A drive shaft is provided on the impeller 41. The drive shaft passes through the partition plate and is connected to the generator motor 421. The drive shaft and the partition plate are connected in a sealed rotatable manner. This completely isolates the generator motor 421 and capacitor 422 from the fluid flowing through the impeller 41, avoiding liquid corrosion and short circuit risks. In this embodiment, the sealing cup 312 of the cup assembly away from the inlet 21 has a slot for fluid to pass through, ensuring that the fluid can pass smoothly through the mounting pipe 2.

[0056] Example 2: An energy-saving control method for an energy-blocking device during operation, comprising:

[0057] The intelligent plug and energy-saving control device are placed inside the pipeline 1 that transports the fluid;

[0058] The flow state parameters of the fluid in pipe 1 are detected by sensor group 44;

[0059] The fluid flow state parameters are compared with parameter thresholds;

[0060] When the fluid flow state parameters are less than or equal to the parameter threshold, the fluid drives the impeller 41 to rotate, and the impeller 41 drives the generator motor 421 to work and generate electricity.

[0061] When the fluid flow state parameters are greater than the parameter threshold, the control unit 43 controls the generator motor 421 to drive the impeller 41 to rotate, and the impeller 41 applies a thrust to the fluid in the opposite direction to its flow.

[0062] When the intelligent plug needs to move forward, the control unit 43 controls the opening and closing mechanism 5 to reduce the opening of the inlet 21, increasing the pressure difference of the fluid at both ends of the energy-saving control device. The pressure difference of the fluid forces the intelligent plug and the energy-saving control device to move along the direction of fluid transport.

[0063] Specifically, taking the energy-saving control device of an intelligent plugging device in Embodiment 1 as an example, its working principle is as follows:

[0064] First, the installation pipe 2 is installed inside the pipe 1 along the length of the pipe 1. The intelligent plug is connected to the installation pipe 2 and the sealing mechanism 3 seals the annular gap between the outer wall of the installation pipe 2 and the inner wall of the pipe 1, ensuring that all fluid flows through the inside of the installation pipe 2.

[0065] Then, sensor group 44 detects the flow state parameters (including flow velocity and pressure signals) of the fluid in pipe 1 in real time and transmits the detected parameters to control unit 43 in real time. Control unit 43 compares the fluid flow state parameters with preset parameter thresholds:

[0066] When the fluid flow parameters are less than or equal to the parameter threshold, it indicates that the fluid flow in the pipeline is stable. At this time, the opening and closing mechanism 5 maintains the set opening degree, and the fluid flows into the installation pipe 2 from the inlet 21, driving the impeller 41 to rotate. After the impeller 41 is reduced in speed and increased in torque by the gearbox 8, it drives the generator motor 421 to generate electricity through the clutch mechanism 7. The generator motor 421 is in the power generation mode, and the generated electrical energy is stored in the capacitor 422. The capacitor 422 supplies power to the intelligent plug, control unit 43, sensor group 44, and micro motor 54, etc., realizing the self-powered energy-saving operation of the system. When the capacitor 422 is fully charged, the control unit 43 controls the clutch mechanism 7 to disengage, allowing the impeller 41 to rotate freely, and the generator motor 421 to stop being driven, reducing mechanical wear and energy loss.

[0067] When the fluid flow state parameters exceed the parameter threshold (such as sudden pressure changes, violent fluctuations in flow velocity, or other abnormal situations), the control unit 43 determines that the fluid flow is abnormal (such as water hammer, vortex vibration, etc.). At this time, the control unit 43 switches the generator motor 421 to electric mode and controls the clutch mechanism 7 to engage. The generator motor 421 drives the impeller 41 to rotate through the gearbox 8. The impeller 41 applies a thrust to the fluid in the opposite direction to its flow. This thrust can counteract the pressure wave or excitation force that causes vibration, thereby achieving active vibration suppression and reducing the impact of fluid vibration on the pipeline life.

[0068] When the intelligent plug needs to advance (or adjust its position) along pipe 1, the control unit 43 controls the micro motor 54 in the opening and closing mechanism 5 to drive the annular transmission plate 53 to rotate, causing all opening and closing blades 55 to synchronously retract towards the center, reducing the opening of the inlet 21. After the opening of the inlet 21 decreases, the fluid flow into the installation pipe 2 decreases, thereby creating a controllable pressure difference between the front and rear sides of the intelligent plug and the energy-saving control device. This pressure difference acts on the device, converting into a driving force along pipe 1, propelling the intelligent plug and the energy-saving control device to move along the fluid transport direction. When it is necessary to stop moving, the control unit 43 controls the opening and closing mechanism 5 to increase the opening of the inlet 21, reducing or eliminating the pressure difference across the device, and stopping the movement. By adjusting the opening of the inlet 21, the moving speed and positioning can be precisely controlled.

[0069] Finally, during the movement or after reaching the designated location, the sensor group 44 continues to monitor the fluid status in real time, and the control unit 43 executes the above-mentioned power generation, vibration suppression or movement control strategies in a cyclical manner according to the actual working conditions to ensure that the intelligent plugging device completes the plugging operation in an energy-saving, safe and controllable state.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. An energy-saving control device for an intelligent plugging device during operation, characterized in that, The device includes an installation pipe (2) connected to one end of the smart plug. The installation pipe (2) is provided with an inlet (21) and an outlet (22) for fluid to flow in and out. An impeller (41) and an energy-saving mechanism (42) are provided inside the installation pipe (2). The impeller (41) is rotatably installed inside the installation pipe (2). The rotation axis of the impeller (41) is parallel to the length direction of the installation pipe (2). The energy-saving mechanism (42) includes a generator motor (421) and a capacitor (422). The generator motor (421) and the smart plug are both electrically connected to the capacitor (422). The generator motor (421) is connected to the impeller (41) in a transmission manner. When the fluid pushes the impeller (41) to rotate, the impeller (41) drives the generator motor (421) to work and generate electricity.

2. The energy-saving control device for an intelligent plugging device during operation according to claim 1, characterized in that, A control unit (43) is provided inside the mounting pipe (2), and a sensor group (44) is provided on the outside of the liquid inlet end of the mounting pipe (2). The generator motor (421) and the sensor group (44) are both electrically connected to the control unit (43). When the sensor group (44) detects an abnormal flow state of the fluid, the control unit (43) controls the generator motor (421) to drive the impeller (41) to rotate. The impeller (41) applies a thrust to the fluid in the opposite direction to its flow direction.

3. The energy-saving control device for an intelligent plugging device during operation according to claim 2, characterized in that, The inlet (21) is located at one end of the mounting tube (2) near the smart plug. An opening and closing mechanism (5) is installed at the inlet (21). The opening and closing mechanism (5) is electrically connected to the control unit (43). The opening and closing mechanism (5) is used to change the opening degree of the inlet (21).

4. The energy-saving control device for an intelligent plugging device during operation according to claim 3, characterized in that, The opening and closing mechanism (5) includes a chassis (51), a top cover (52), an annular transmission plate (53), a micro motor (54), and multiple opening and closing blades (55). The chassis (51) is fixedly connected to the liquid inlet (21) end of the mounting pipe (2). The top cover (52) is fixedly connected to the side of the chassis (51) away from the mounting pipe (2). The annular transmission plate (53) is rotatably disposed between the chassis (51) and the top cover (52). The micro motor (54) is fixedly installed on the chassis (51). On 51), the annular transmission plate (53) is connected to the micro motor (54) for transmission. The annular transmission plate (53) has multiple first sliding grooves (531), and the top cover (52) has multiple second sliding grooves (521). Each opening and closing blade (55) is fixedly provided with a sliding rod (551). The sliding rod (551) is slidably engaged in the corresponding first sliding groove (531), and the opening and closing blade (55) is slidably engaged in the corresponding second sliding groove (521).

5. The energy-saving control device for an intelligent plugging device during operation according to claim 3, characterized in that, The outer wall of the installation tube (2) is provided with a sealing mechanism (3). The sealing mechanism (3) is used to seal the gap between the outer wall of the installation tube (2) and the inner wall of the fluid delivery pipe. The sealing mechanism (3) includes two identical cup assemblies. The two cup assemblies are fixedly installed at both ends of the installation tube (2). The cup assemblies include an isolation cup (311) and a sealing cup (312). A guide cup (313) is provided on the cup assembly near the liquid inlet (21).

6. The energy-saving control device for an intelligent plugging device during operation according to claim 1, characterized in that, A clutch mechanism (7) is provided between the generator motor (421) and the impeller (41). The clutch mechanism (7) is electrically connected to the control unit (43). When the capacitor (422) is fully charged, the control unit (43) controls the clutch mechanism (7) to disengage, so that the generator motor (421) and the impeller (41) are disconnected from the transmission connection.

7. The energy-saving control device for an intelligent plugging device during operation according to claim 1, characterized in that, A gearbox (8) is provided between the generator motor (421) and the impeller (41). The gearbox (8) includes a large gear and a small gear that mesh with each other. The impeller (41) is connected to the small gear in a transmission connection, and the generator motor (421) is connected to the large gear in a transmission connection.

8. The energy-saving control device for an intelligent plugging device during operation according to claim 1, characterized in that, Multiple outlets (22) are provided, and the multiple outlets (22) are evenly distributed along the circumference of the mounting tube (2). A partition plate (23) is fixedly provided on the side of the mounting tube (2) away from the outlet (21). The partition plate (23) separates a waterproof mounting area from the inside of the mounting tube (2). The generator motor (421) and the capacitor (422) are both installed in the waterproof mounting area. A drive shaft is provided on the impeller (41). The drive shaft passes through the partition plate and is connected to the generator motor (421) for transmission. The drive shaft and the partition plate are connected in a sealed rotational manner.

9. An energy-saving control method for an intelligent plugging device during operation, characterized in that, The method using the energy-saving control device of the intelligent plugging device according to claim 3 during operation includes: The intelligent plug and energy-saving control device are placed inside the pipeline (1) that transports fluid; The flow state parameters of the fluid in the pipe (1) are detected by the sensor group (44); The fluid flow state parameters are compared with parameter thresholds; When the fluid flow state parameters are less than or equal to the parameter threshold, the fluid drives the impeller (41) to rotate, and the impeller (41) drives the generator motor (421) to generate electricity; When the fluid flow state parameter is greater than the parameter threshold, the control unit (43) controls the generator motor (421) to drive the impeller (41) to rotate, and the impeller (41) applies a thrust to the fluid in the opposite direction to its flow. When the smart plug needs to move forward, the control unit (43) controls the opening and closing mechanism (5) to reduce the opening of the inlet (21), increase the pressure difference of the fluid at both ends of the energy-saving control device, and force the smart plug and the energy-saving control device to move along the direction of fluid transport through the pressure difference of the fluid.

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