Ultrahigh-speed jet velocity adjusting device and method

Abstract

The invention discloses an ultra-high-speed jet flow speed adjusting device and method, and relates to the technical field of ultra-high-speed jet flow. According to the device, a speed measuring device is arranged on the basis of an underwater metal wire electric explosion jet flow generating device; the speed measuring device is used for acquiring the current jet velocity; and the control system is used for determining a current regulating variable and a voltage regulating variable by using a current / voltage-speed relationship according to a difference value between the current jet velocity and the target jet velocity, and controlling the power supply based on the current regulating variable and the voltage regulating variable. By determining the current / voltage-speed relation, the jet velocity is adjusted in the process that the metal wire is electrically exploded in water to generate the ultra-high-speed jet, so that the jet velocity is accurately controlled and optimized, and the requirements of different industrial and scientific research fields are met.

Description

Technical Field

[0001] This application relates to the field of ultra-high-speed jet technology, and particularly to an ultra-high-speed jet velocity regulation device and method. Background Art

[0002] Ultra-high-speed jets specifically refer to jets with velocities ranging from 1 km / s to 5 km / s. Ultra-high-speed jet technology has received increasing attention due to its wide applications in fields such as material processing, cleaning, cutting, and scientific research. In particular, ultra-high-speed jets generated by the electro-explosion of metal wires in water can release a large amount of energy in an extremely short time, forming high-speed fluids with high kinetic energy and impact force. This technology can provide efficient and precise solutions in many applications. However, the current technology still faces a series of challenges in achieving ultra-high-speed jets. Among them, the most important issue is the control and regulation of jet velocity. Although existing electro-explosion technologies can generate jets with velocities higher than 1 km / s, there is a lack of effective methods to precisely regulate the jet velocity, resulting in poor jet stability and low repeatability, which limits its usability in precision machining and control applications.

[0003] The basic steps and structural components of existing electro-explosion jet generation devices in water are as follows: 1. Method steps. Prepare the metal wire: Select a suitable metal material (such as copper or aluminum) to make the metal wire, and adjust its diameter and length to optimize the electro-explosion effect. Immerse in water: Immerse the metal wire in water to ensure that the metal wire is completely covered by water so as to generate an effective water jet during the electro-explosion process. Apply voltage: Apply a high voltage to the metal wire through a power source to generate a strong current, causing the metal wire to heat up rapidly and undergo electro-explosion in a short time. Form a jet: The rapid evaporation and gasification of the metal wire generate high-pressure gas, which pushes the surrounding water to form a high-speed jet. 2. Structural components. Power source: A power supply device that provides high voltage and can generate an instantaneous high current. Electrode system: Composed of two electrodes, which are respectively connected to the metal wire and the power source to form a circuit. Metal wire: As the main energy release element, its material, diameter, and length affect the generation and velocity of the jet. Water tank: A container for holding water and the metal wire to ensure that the metal wire is completely immersed in water during the electro-explosion process. Control system: Used to control the switch of the power source, the intensity, and the duration of the applied voltage. This solution can generate jets with velocities higher than 1 km / s in some cases, but due to the lack of effective velocity regulation means, the stability and repeatability of the jet velocity are limited. In addition, the existing solution has relatively rough regulation of current intensity, metal wire material, and water conditions, making it difficult to achieve precise control, which limits its effectiveness in high-precision applications.

[0004] In addition, the patent application with the application number 202010715479.2 and the title "Underwater Sound Source and Shock Wave Source Based on Wire Array Electrical Explosion" presents a method and technical solution for generating shock waves in water. However, it fails to notice that the converging shock waves generated by the electrical explosion of metal wires in water can produce ultra-high-speed jets, which belongs to the underlying principle technology of the shock wave generation method. The patent application with the application number 202410019307.X and the title "Ultra-High-Speed Water Jet Generation Device and Generation Method" presents a method for generating converging shock waves by the electrical explosion of metal wires in water to produce ultra-high-speed jets. However, it does not provide a method and technical solution for how to adjust the speed of the ultra-high-speed jets, and there is no detailed device model diagram, only a schematic diagram of the principle. When the existing technology uses the electrical explosion of metal wires in water to produce ultra-high-speed jets, the main drawback is the lack of accuracy and stability in jet speed control. Specifically, this drawback is mainly reflected in the following aspects: 1) Unstable jet speed: Due to the limited adjustment means of the existing technology, the jet speed is often unstable due to various factors (such as the material, diameter, shape of the metal wire, applied voltage, and water temperature, etc.), resulting in inconsistent performance in practical applications. 2) Limited adjustment range: When the existing solutions adjust the jet speed, they often rely only on simple adjustments of the current intensity and applied voltage, lacking comprehensive control of other parameters (such as the flow state of water, bubble formation, etc.), which limits the variation range and flexibility of the jet speed. 3) Low repeatability: Due to the complexity of the jet generation process and the influence of environmental factors, the existing technology is difficult to ensure the repeatability of the jet speed in practical applications, resulting in unpredictable results and unable to meet the requirements of precision machining and control. Summary of the Invention

[0005] The objective of this application is to provide an ultra-high-speed jet speed adjustment device and method, which can adjust the jet speed during the process of generating ultra-high-speed jets by the electrical explosion of metal wires in water, so as to achieve precise control and optimization of the jet speed, and further meet the requirements of different industrial and scientific research fields.

[0006] To achieve the above objective, this application provides the following solutions:

[0007] In the first aspect, this application provides an ultra-high-speed jet speed adjustment device. The ultra-high-speed jet speed adjustment device is applied to a device for generating jets by the electrical explosion of metal wires in water. The device for generating jets by the electrical explosion of metal wires in water includes: a power supply, an electrode system, a metal wire structure, a water tank, and a control system; the water tank is used for containing a fluid; the metal wire structure is immersed in the fluid; the power supply is connected to the metal wire structure through the electrode system; the control system is connected to the power supply; the power supply is used to cause the metal wire structure to undergo an electrical explosion to generate ultra-high-speed jets;

[0008] The ultra-high speed jet velocity regulating device includes: a velocity measuring device;

[0009] The velocity measuring device is used to obtain the current jet velocity;

[0010] The control system is used to determine the current regulation amount and voltage regulation amount according to the difference between the current jet velocity and the target jet velocity by using the current / voltage-velocity relationship, and control the power supply based on the current regulation amount and the voltage regulation amount.

[0011] Optionally, the wire structure is a hollow wire array;

[0012] A reflector is arranged in the cavity of the wire structure;

[0013] The reflector is used to reflect the external explosion shock wave of the wire structure to increase the jet velocity.

[0014] Optionally, the reflector is a cylindrical structure.

[0015] Optionally, the ultra-high speed jet velocity regulating device further includes:

[0016] A fluid temperature measuring device and a temperature control device in the tank;

[0017] Both the fluid temperature measuring device and the temperature control device are connected to the control system;

[0018] The fluid temperature measuring device is used to obtain the current fluid temperature in the tank;

[0019] The control system is used to adjust the temperature control device based on the current fluid temperature in the tank so that the current fluid temperature in the tank is within the range of the fluid temperature in the tank corresponding to the target working condition.

[0020] Optionally, the ultra-high speed jet velocity regulating device further includes: a fluid replacement assembly;

[0021] The fluid replacement assembly is connected to the control system;

[0022] The control system is used to control the fluid replacement assembly to replace the target fluid and monitor the state of the target fluid; the state includes the temperature, pressure and flow rate of the target fluid.

[0023] Optionally, the fluid replacement assembly includes: an inlet sensor group, a circulation pump and an outlet sensor group;

[0024] The inlet of the water tank is connected to the target fluid storage device through an inlet pipeline;

[0025] The outlet of the water tank is connected to the waste water tank through an outlet pipeline;

[0026] The inlet sensor group is arranged at the inlet of the water tank;

[0027] The outlet sensor group is arranged at the outlet of the water tank; switching valves are arranged at both the inlet and the outlet of the water tank;

[0028] The circulation pump is arranged on the inlet pipeline;

[0029] The inlet sensor group, the circulation pump, the outlet sensor group and the switching valves are all connected to the control system; the control system is further used to adjust the opening degree of the switching valves.

[0030] Optionally, both the inlet sensor group and the outlet sensor group include: a temperature sensor, a pressure sensor and a flow sensor.

[0031] Optionally, the speed measuring device includes:

[0032] A high-speed imaging system and a data processing unit;

[0033] The data processing unit is respectively connected to the high-speed imaging system and the control system;

[0034] The high-speed imaging system is used to acquire the jet motion image;

[0035] The data processing unit is used to determine the jet motion image based on the jet motion image.

[0036] In a second aspect, the present application provides a method for adjusting the speed of an ultra-high-speed jet. Optionally, the method for adjusting the speed of an ultra-high-speed jet is applied to the ultra-high-speed jet speed adjusting device, and the method for adjusting the speed of an ultra-high-speed jet includes:

[0037] Controlling the fluid replacement component to make the water tank contain a target fluid that meets the target working condition; the parameters of the target fluid correspond one-to-one with the target working condition; the parameters of the target fluid are the solute type and ratio;

[0038] Obtaining the structural parameters of the wire structure; the structural parameters of the wire structure include the shape, material and length of the wire structure, and the diameters of all the wires in the wire structure;

[0039] Replacing the wire structure based on the structural parameters and starting the power supply to obtain the current temperature of the fluid in the tank;

[0040] Adjusting the temperature control device based on the current temperature of the fluid in the tank to make the current temperature of the fluid in the tank within the range of the temperature of the fluid in the tank corresponding to the target working condition;

[0041] Obtaining multiple groups of power supply parameter groups and using the ultra-high-speed jet speed adjusting device to determine the jet speed corresponding to each group of power supply parameter groups;

[0042] Taking the power parameter group as the independent variable and the jet velocity as the dependent variable, fitting multiple groups of power parameter groups and the corresponding jet velocities of multiple groups of power parameter groups to obtain the current / voltage-velocity relationship; the power parameter group includes the current and voltage output by the power supply.

[0043] Obtain the current jet velocity.

[0044] Determine the difference between the current jet velocity and the target jet velocity.

[0045] Based on the difference and the current / voltage-velocity relationship, use a feedback adjustment mechanism to determine the current adjustment amount and the voltage adjustment amount; the feedback adjustment mechanism is a linear control algorithm or a non-linear control algorithm.

[0046] Control the power supply based on the current adjustment amount and the voltage adjustment amount.

[0047] Optionally, the obtaining of the structural parameters of the wire structure includes:

[0048] Obtain multiple groups of to-be-determined structural parameter groups of the wire structure, and use an ultra-high-speed jet velocity adjustment device to determine the jet velocity corresponding to each group of to-be-determined structural parameter groups.

[0049] Determine the target jet velocity with the smallest absolute value of the difference from the target jet velocity as the structural parameters of the wire structure.

[0050] According to the specific embodiments provided by the present application, the present application discloses the following technical effects:

[0051] The present application provides an ultra-high-speed jet velocity adjustment device and method, which can achieve precise control and stable output of the ultra-high-speed jet velocity, specifically including:

[0052] 1. Improve the stability of the jet velocity: By comprehensively adjusting the power supply parameters, wire characteristics, water state and other related factors, the stability of the jet velocity is achieved, ensuring consistent results under different experimental and application conditions.

[0053] 2. Expand the adjustable range of the jet velocity: Develop multi-dimensional adjustment strategies, so that the jet velocity can be flexibly adjusted within a larger range on the basis of exceeding 1 km / s to meet the requirements of different application scenarios.

[0054] 3. Improve the repeatability of jet generation: By optimizing the control system and adjustment parameters, the repeatability of the jet generation process is improved, making it more reliable and predictable in industrial and scientific research applications.

[0055] In summary, the present application aims to overcome the deficiencies in the prior art through innovative methods, providing an efficient, stable, and adjustable ultra-high-speed jet generation technology to meet the requirements of modern industry and scientific research for high-performance fluid dynamics. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0057] Figure 1 Structural schematic diagram of an ultra-high-speed jet velocity regulating device in an embodiment of the present application;

[0058] Figure 2 Flowchart of a method for regulating the velocity of an ultra-high-speed jet in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0060] To make the above objects, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0061] In an exemplary embodiment, as Figure 1 shown, an ultra-high-speed jet velocity regulating device is provided. The ultra-high-speed jet velocity regulating device is applied to a device for generating an underwater metal wire electro-explosion jet. The device for generating an underwater metal wire electro-explosion jet includes: a power supply, an electrode system, a metal wire structure, a water tank, and a control system; the water tank is used to hold a fluid; the metal wire structure is immersed in the fluid; the power supply is connected to the metal wire structure through the electrode system; the control system is connected to the power supply; the power supply is used to cause the metal wire structure to undergo an electro-explosion to generate an ultra-high-speed jet.

[0062] The ultra-high-speed jet velocity regulating device includes: a velocity measuring device. The velocity measuring device is used to obtain the current jet velocity. The control system is used to determine the current regulation amount and voltage regulation amount based on the difference between the current jet velocity and the target jet velocity using the current / voltage-velocity relationship, and control the power supply based on the current regulation amount and voltage regulation amount.

[0063] The speed measurement device includes: a high-speed imaging system and a data processing unit. The data processing unit is respectively connected to the high-speed imaging system and the control system. The high-speed imaging system is used to obtain the jet motion image. The data processing unit is used to determine the jet motion image based on the jet motion image. The high-speed imaging system captures the motion of the jet through a high-frame-rate camera, and the jet speed is obtained through later analysis. The temperature control device is connected to the speed measurement device through a data cable to achieve real-time monitoring and recording of temperature changes and speed changes. The speed measurement device should be installed near the jet outlet to ensure that the jet speed data can be accurately captured. The data output of the speed measurement device should be connected to the data processing unit for data analysis and processing, so as to adjust the working parameters of the temperature control device according to the measured speed.

[0064] The main function of the control system is to receive the data from the speed measurement device and automatically adjust the current and voltage according to the set rules (such as the relationship between temperature and speed) to optimize the jet speed. The control system should have the following functions: real-time monitoring of speed data, comparison of the difference between the speed and the target speed, adjustment of the current and voltage outputs according to the difference to optimize the jet speed, data recording and feedback functions for subsequent analysis and experimental optimization.

[0065] The working process of the control system is as follows:

[0066] (1) Data acquisition:

[0067] The control system regularly obtains the current jet speed V current data from the speed measurement device.

[0068] At the same time, it obtains the current fluid temperature T in the tank current and the set target jet speed V target .

[0069] (2) Difference calculation:

[0070] Calculate the difference between the current speed and the target speed: ΔV = V current - V current .

[0071] (3) Adjustment strategy determination:

[0072] According to the pre-determined rules (such as the relationship between current / voltage and speed obtained from experimental results), select a suitable adjustment strategy. Linear or non-linear control algorithms, such as the PID control algorithm, can be used to determine the adjustment amounts of current and voltage according to the speed difference.

[0073] (4) Current and voltage adjustment:

[0074] Automatically adjust the current and voltage according to the calculated adjustment amounts:

[0075] Increase current / voltage: If ΔV > 0, increase the current and voltage.

[0076] Decrease current / voltage: If ΔV < 0, decrease the current and voltage.

[0077] (5) Feedback mechanism

[0078] Feedback monitoring: After the control system adjusts the current and voltage, it continues to monitor the current jet velocity (V current ) in real time and records the new velocity data. This process forms a closed-loop control system.

[0079] Data recording: The control system should record each velocity measurement, the corresponding current and voltage values for subsequent analysis and optimization. These data can be used to train more complex control algorithms (such as machine learning algorithms) to improve the accuracy and response speed of velocity regulation.

[0080] Abnormal situation handling: The control system should have an abnormal detection mechanism, such as monitoring whether the current and voltage are within the safe range and whether the jet velocity is within a reasonable range. If an abnormality is detected, the system should automatically stop the power supply or give an alarm to protect the safety of the equipment and personnel.

[0081] The wire structure is a hollow wire array. A reflector is arranged inside the cavity of the wire structure. The reflector is used to reflect the external explosion shock wave of the wire structure to increase the jet velocity. The reflector is a cylindrical structure.

[0082] The design of the reflector aims to surround the wire array (the wire array is a hollow structure and the reflector is arranged in the hollow part). The reflector surrounds the wire array on the outside and is used to reflect the external explosion shock wave of the wire array, which can increase the velocity of the jet and utilize the shock wave and bubble dynamics effects generated during the electro-explosion process.

[0083] Its main functions are as follows:

[0084] (1) Shock wave reflection: The inner wall of the reflector is designed with a specific geometric shape so that the shock wave generated at the moment of electro-explosion can be effectively reflected back to the wire array. By reflecting the shock wave, a stronger pressure field can be formed around the wire, promoting the implosion effect of water.

[0085] (2) Implosion efficiency enhancement: The presence of the reflector can concentrate the energy of the shock wave, thereby increasing the implosion efficiency. As the implosion intensity increases, the water around the wire is rapidly compressed and accelerated to form a high-velocity jet.

[0086] Bubble control and guidance: The internal design of the reflector can effectively control the bubbles generated during the electro-explosion process and avoid the interference of bubbles on the jet. Reasonable bubble management helps to maintain the high velocity and stability of the jet.

[0087] The reflector should be made of high-strength and corrosion-resistant materials (such as stainless steel or high-performance alloys), and its outer shape is designed as a cylindrical or other suitable geometric shape to facilitate enclosing the wire array. The inner wall should have specific curvatures and angles to achieve the best shock wave reflection effect. The reflector needs to be closely combined with the wire array, and ensure that the gap between the wire and the reflector is minimized during the electro-explosion, so as to improve the reflection efficiency of the shock wave. An adjustable connection structure can be designed to facilitate optimization under different experimental conditions. Conduct a series of experiments to evaluate the influence of different reflector designs on the jet velocity. By adjusting the size, shape and material of the reflector, find the optimal design scheme. At the same time, use equipment such as high-speed photography and pressure sensors to monitor the parameter changes during the jet formation process in real time.

[0088] The design of the reflector will effectively improve the implosion efficiency, enable the jet velocity to break through 1 km / s, and meet the needs of industry and scientific research. By optimizing the hydrodynamic characteristics, the stability of the jet during the formation process will be significantly enhanced, and the velocity fluctuation will be reduced. The reflector can utilize the energy generated during the electro-explosion more efficiently to accelerate the water flow, improving the overall performance and efficiency of the system.

[0089] The ultra-high-speed jet velocity regulating device further includes: a fluid temperature measuring device in the tank and a temperature control device. Both the fluid temperature measuring device and the temperature control device are connected to the control system. The fluid temperature measuring device is used to obtain the current fluid temperature in the tank. The control system is used to adjust the temperature control device based on the current fluid temperature in the tank to make the current fluid temperature in the tank within the range of the fluid temperature corresponding to the target working condition.

[0090] In addition, the ultra-high-speed jet velocity regulating device further includes: a fluid replacement component. The fluid replacement component is connected to the control system. The control system is used to control the fluid replacement component to replace the target fluid and monitor the state of the target fluid. The state includes the temperature, pressure and flow rate of the target fluid.

[0091] The fluid replacement component includes: an inlet sensor group, a circulation pump and an outlet sensor group. The inlet of the water tank is connected to the target fluid storage device through an inlet pipeline. The outlet of the water tank is connected to the waste water tank through an outlet pipeline. The inlet sensor group is arranged at the inlet of the water tank. The outlet sensor group is arranged at the outlet of the water tank. Switch valves are arranged at both the inlet and the outlet of the water tank. The circulation pump is arranged on the inlet pipeline. The inlet sensor group, the circulation pump, the outlet sensor group and the switch valves are all connected to the control system. The control system is also used to adjust the opening degree of the switch valves. Both the inlet sensor group and the outlet sensor group include: a temperature sensor, a pressure sensor and a flow sensor.

[0092] The design of the fluid storage container is crucial to ensure its effective capacity to hold water and other possible fluid media. The container should possess the characteristics of high-pressure resistance and corrosion resistance to ensure safe and stable operation during the wire electrical explosion process. The materials of the container can be selected as stainless steel or polymer composite materials to improve durability and safety. To achieve effective fluid circulation and regulation, the fluid storage container should be equipped with the following components:

[0093] Inlet system: Design an adjustable-flow inlet to control the inflow rate of water using a pump or valve, so as to replace the fluid in a timely manner or adjust the fluid flow rate according to experimental requirements.

[0094] Outlet system: Install a safety valve and a flow monitoring device at the outlet of the container to monitor the velocity and flow rate of the jet in real time, thus ensuring the stable output of the fluid.

[0095] Circulation pump: Consider using an efficient circulation pump to draw the fluid out of the container and reinject it to achieve fluid recycling and ensure that the temperature and state of the fluid remain consistent during the experiment.

[0096] Detection device: Install temperature, pressure, and flow sensors at various inlet and outlet positions of the fluid storage container to monitor the fluid state in real time for timely adjustment of system parameters.

[0097] To ensure flexibility under different experimental conditions, the fluid storage container should be designed with a convenient fluid replacement mechanism. For example, use quick connectors or valve systems to allow for rapid switching between different types of fluids (such as water at different temperatures or other liquids required for experiments) to meet different experimental needs and optimize the jet velocity.

[0098] The control system designed in this application will be connected to the temperature control device, the fluid replacement component, and other relevant sensors to form a comprehensive automated control system. The main functions of the control system include:

[0099] Temperature control: Receive the data from the temperature sensor in real time and adjust the working state of the heater or cooling system to precisely control the temperature of the water.

[0100] Fluid replacement management: Control the opening and closing of the pump and valve according to experimental requirements to achieve rapid fluid replacement and circulation.

[0101] Physical property adjustment: Optimize the jet characteristics by adjusting parameters such as the fluid velocity and pressure.

[0102] Data acquisition and monitoring: Record the data of various sensors and generate an experimental report for subsequent analysis.

[0103] The design of the control system should follow the following logic and process:

[0104] (1) Initialization phase:

[0105] When starting the system, the control system first performs a self-check to confirm that all components (temperature control devices, pumps, valves, sensors, etc.) are working properly.

[0106] Set initial parameters, including target temperature, fluid type, flow rate, etc.

[0107] (2) Monitoring phase:

[0108] The control system monitors the fluid state in real time through temperature sensors, pressure sensors, flow sensors, etc.

[0109] According to the set target value, judge whether the current parameters are within the appropriate range.

[0110] (3) Adjustment phase:

[0111] Temperature adjustment: If the temperature is lower than the set value, the control system automatically starts the heater; otherwise, it starts the cooling system.

[0112] Fluid replacement: According to the experimental process and requirements, the control system sends a signal to start the pump and valve for fluid replacement.

[0113] Physical property adjustment: According to the experimental requirements, adjust the flow rate and pressure of the fluid by opening and closing the variable frequency pump or regulating valve.

[0114] (4) Feedback and optimization phase:

[0115] The control system continuously receives data from each sensor during each operation phase and compares it with the target value.

[0116] If there is a deviation between the actual temperature, flow rate or fluid characteristics and the set value, the control system will automatically make adjustments. For example, when the flow rate is lower than the predetermined range, the control system will automatically increase the pump output or adjust the valve opening.

[0117] (5) System safety and fault handling:

[0118] The control system is equipped with a fault detection mechanism. When the system shows abnormalities (such as over-temperature, fluid leakage, etc.), it will automatically issue an alarm and execute safety measures, such as quickly shutting down the equipment or stopping the fluid flow. Design a fault recovery process to ensure that the system can quickly reset and restart the experiment after problems occur.

[0119] In the ultra-high-speed jet velocity regulating device provided in this embodiment, the fluid storage container is a cylindrical or rectangular container for storing water (fluid) to provide the water environment required for electroexplosion. The temperature control device is installed outside or at the bottom of the fluid storage container. The temperature control device includes a heater and a cooling system for adjusting the water temperature in real time and monitoring the temperature change; the heater is in contact with the bottom of the fluid storage container and can heat the water. The cooling system can be a cooling pipe or a cooling plate, wrapped outside the container, for heat exchange with the water. The inverted frustum-shaped metal wire array is located at the center of the fluid storage container, perpendicular to the water surface. It is wider at the bottom and gradually shrinks at the top to form an inverted cone shape, which can effectively convert electrical energy into mechanical energy to generate an ultra-high-speed jet. The electrode system is connected to the metal wire array, usually installed at the top and bottom of the metal wire array, to provide a high-voltage power supply and form an electric arc to initiate electroexplosion. The power supply is set outside the device and connected to the electrode to provide the required voltage and current to activate the electrode and initiate electroexplosion. The fluid is filled in the fluid storage container and in contact with the metal wire array, which can form an ultra-high-speed jet during electroexplosion. The power supply and the electrode are connected by wires to ensure the smooth transmission of high-voltage electrical energy. The heater is connected to the bottom of the fluid storage container by a heat conducting plate or by direct contact with the bottom to ensure the heating efficiency. The cooling system can be connected to the outer wall of the fluid storage container through a pipe system, and the cooling liquid circulates through the cooling system for effective heat exchange. The bottom of the metal wire array is connected to the lower electrode and the top is connected to the upper electrode to form a current loop. The fluid storage container and the external temperature control monitoring instrument: A temperature sensor (such as a thermocouple) can be set inside the fluid storage container to monitor the water temperature in real time and feedback the data to the temperature control device for adjustment.

[0120] For the ultra-high-speed jet velocity regulating device provided in this embodiment, the working process is as follows:

[0121] 1. Preparation:

[0122] Clean the fluid storage container and add an appropriate amount of water.

[0123] Install the temperature control device, including the heater and the cooling system, and ensure its normal operation.

[0124] 2. Temperature setting:

[0125] According to the experimental requirements, set the required water temperature through the temperature control device and start the heater or the cooling system for adjustment.

[0126] Real-time monitor the water temperature through the temperature sensor to ensure that the water temperature remains within the set range.

[0127] 3. Power connection:

[0128] Ensure that the power supply is well connected to the electrode and check whether the power supply function is normal.

[0129] After preparation, gradually increase the power supply voltage between the electrodes until the conditions for arc discharge are reached.

[0130] 4. Perform electroexplosion:

[0131] After the electrodes are powered on, the wires in the wire array will be rapidly heated and explode, generating high-temperature and high-pressure gas.

[0132] Due to the properties of water, the instantaneously formed bubbles will rapidly collapse, resulting in the generation of ultra-high-speed jets. These jets are ejected outward through the inverted frustum-shaped wire array to reach the expected speed.

[0133] 5. Speed monitoring and adjustment:

[0134] Use high-speed photography to monitor the speed of the jets.

[0135] According to the actually measured jet speed, timely adjust the settings of the temperature control device, such as increasing or decreasing the water temperature, to optimize the performance of the jet speed.

[0136] 6. Data recording and analysis:

[0137] Record the temperature, jet speed, voltage used, and other relevant parameters for each experiment, and conduct data analysis to evaluate the influence of different temperatures on the jet speed.

[0138] In addition, the influence of different wire materials and diameters on the jet performance can also be analyzed to provide reference for subsequent experiments.

[0139] In the process of generating ultra-high-speed jets in the prior art, there is often a lack of effective adjustment means, resulting in instability and uncontrollability of the jet velocity, which limits its wide application in fields such as industrial applications, material processing, and scientific research. Therefore, this application aims to provide an effective method, design a set of adjustable high-voltage power supply systems that can freely adjust the voltage and current within a certain range to ensure that the system can adapt to different experimental requirements and jet velocity requirements. Equipped with a voltage and current monitoring and control system, it can monitor the changes in voltage and current in real time and automatically adjust the voltage and current according to the feedback data to ensure that the jet velocity is maintained within a predetermined range. Conduct a series of experiments under different voltage and current settings, record the jet velocity and its related parameters, and use data analysis to determine the optimal voltage and current setting range, thereby achieving precise adjustment of the jet velocity. By adjusting the electro-explosion energy, medium conditions, and other related parameters, the jet velocity can be controlled and adjusted to be stable and adjustable within a speed range exceeding 1 km / s to meet the requirements of different application scenarios. Through the above implementation plan, using a temperature control device to precisely adjust the water temperature can significantly improve the stability and efficiency of the ultra-high-speed jets generated by electro-explosion. The expected effects include: the generation of ultra-high-speed jets, and through optimizing the temperature control, the jet velocity can be stabilized above 1 km / s. Improving the experimental repeatability, by monitoring and adjusting the water temperature in real time, the consistency of experimental conditions can be maintained, and the reliability of experimental results can be improved. Expanding the application fields, the successful implementation of this technology can have broad application prospects in fields such as material processing, waste treatment, and mineral extraction:

[0140] (1) Innovative application of current and voltage regulation: This application realizes precise control of the jet velocity by adjusting the magnitude of the current and voltage applied to the metal wire and optimizing the energy release and shock wave characteristics during the electro-explosion process.

[0141] (2) Diversified selection of metal wire properties: It is proposed to adjust the material, diameter, and arrangement of the metal wire according to the required jet velocity and characteristics, and explore the influence of the conductivity, melting point, and strength of different metal wires on the jet velocity.

[0142] (3) Optimized design of the metal wire array structure: This application emphasizes the geometric structure of the metal wire array, including the spacing, number of layers, and shape design, to improve the implosion efficiency and concentration of the shock wave, thereby enhancing the jet velocity.

[0143] (4) Adjustment of fluid physical properties: By adjusting the temperature, pressure, and additives (such as bubbles, solvents, etc.) of water, its physical properties are changed, and the hydrodynamic characteristics are optimized to adapt to different jet velocity requirements.

[0144] (5) Design and Application of Reflector: In this application, an external reflector is innovatively introduced and configured around the wire array to enhance the implosion efficiency by utilizing the reflected shock wave. The geometry, material, and position of the reflector can all be adjusted to achieve the best effect of jet velocity increase.

[0145] In another embodiment, a method for adjusting the ultra-high-speed jet velocity is provided. The method for adjusting the ultra-high-speed jet velocity is applied to the ultra-high-speed jet velocity adjusting device as Figure 2 shown. The method for adjusting the ultra-high-speed jet velocity includes:

[0146] Step 1: Control the fluid replacement component to make the water tank contain the target fluid that meets the target working conditions. The parameters of the target fluid correspond one-to-one with the target working conditions. The parameters of the target fluid are the solute type and ratio.

[0147] The physical properties of water affect its gasification and jetting characteristics during the electro-explosion process. By adjusting the temperature of water, adding different solutes, and controlling the phase state of water, its density, viscosity, and conductivity can be significantly changed, thereby affecting the energy conversion required for electro-explosion and the formation of the jet. The following are the effects of various physical properties on the jet velocity:

[0148] Temperature: The increase in water temperature will reduce its viscosity and increase the gasification rate, thus promoting the rapid conversion of water into gas during the electro-explosion process and forming a stronger jet. By controlling the temperature of water, higher gasification efficiency can be achieved at the moment of electro-explosion, thereby increasing the jet velocity.

[0149] Density: The density of water directly affects its flow characteristics. By adding different concentrations of solutes (such as salts, sugars, etc.) to change the density of water, the fluidity of water can be optimized. An appropriate density can effectively transfer energy during the electro-explosion process, thereby increasing the jet velocity.

[0150] Viscosity: The viscosity of water affects its fluidity and the formation of bubbles. By adjusting the temperature of water or adding specific chemicals (such as surfactants), the viscosity of water can be reduced, enabling it to flow more rapidly when subjected to the electro-explosion shock, thereby increasing the jet velocity.

[0151] Conductivity: The conductivity of water affects the distribution of current and the conversion efficiency of electrical energy. By changing the type and concentration of solutes in water, the conductivity of water can be adjusted to make the current evenly distributed during the electro-explosion process. An appropriate conductivity helps to improve the conversion efficiency of electrical energy, thereby enhancing the impact force and velocity of the jet.

[0152] This application designs a temperature control device that can precisely adjust the temperature of water and monitor in real time the impact of temperature changes on the jet velocity. A heater or a cooling system can be used for adjustment according to experimental requirements.

[0153] Solute addition: Conduct experiments on the addition of different solutes (such as table salt, sugars, surfactants, etc.), study their effects on the density and viscosity of water, evaluate their performance during the electro-explosion process, and determine the optimal ratio to achieve an increase in jet velocity.

[0154] 1. Solute selection and addition method.

[0155] This application proposes to adjust the physical properties of water by adding different types of solutes (such as table salt, sugars, surfactants, etc.) to optimize the jet velocity. During the solute selection process, consider the following factors:

[0156] Properties of the solute: including solubility, effects on the density and viscosity of water, etc.

[0157] Conductivity: Some solutes may increase the conductivity of water, thus affecting the efficiency of the electro-explosion process.

[0158] Safety: Ensure the safety and environmental friendliness of the selected solutes under experimental conditions.

[0159] 2. Experimental design and optimization.

[0160] When conducting solute addition experiments, it is recommended to adopt a systematic method, and the specific steps are as follows:

[0161] Preliminary screening: Conduct small-scale experiments to test the effects of different solutes on the density and viscosity of water, and record their performance during the electro-explosion process. Based on the experimental results, select the solutes with better performance for further optimization experiments.

[0162] Determination of the optimal ratio: For each solute that has passed the preliminary screening, formulate a series of experimental groups with different concentrations, and systematically evaluate its effect on the jet velocity. Through experimental data analysis, plot the relationship curve between different solute concentrations and the jet velocity, and determine the optimal ratio.

[0163] 3. Corresponding relationship between solute and jet velocity.

[0164] After determining the optimal solute and its ratio, the following steps can be taken to further study the corresponding relationship between different solutes and the jet velocity:

[0165] Establish a mathematical model: Through multiple sets of experimental data, establish a mathematical model between solute concentration, physical properties (such as density, viscosity) and jet velocity. This model will help understand the influence mechanism of different solutes on the jet velocity.

[0166] Dynamic adjustment and feedback mechanism: During the experiment, the control system can dynamically adjust the solute addition amount according to the feedback of the real-time monitored jet velocity. In this way, the jet velocity can be continuously optimized during the experiment to ensure the best jet performance under different experimental conditions.

[0167] 4. Experimental data recording and analysis.

[0168] Data collection: Record in detail the parameters of each experiment, including the type of solute used, concentration, temperature, jet velocity, etc. Ensure the integrity and repeatability of the data.

[0169] Statistical analysis: Use statistical methods to analyze the experimental results and evaluate the significant effects of different solutes and their concentrations on the jet velocity. Determine the optimal combination of solute type and concentration through regression analysis to provide a scientific basis for jet velocity optimization.

[0170] 5. Result verification and iterative improvement.

[0171] Verification experiment: After determining the optimal ratio, conduct repeated experiments to verify the reliability of the results. Ensure that similar jet velocity performances can be obtained under different conditions.

[0172] Iterative improvement: Based on the results of the verification experiment, continue to make fine adjustments and optimizations. Explore the effects of other possible solutes or different combinations to ensure the adaptability and universality of the technology.

[0173] 6. Influence of solute addition on the electro-explosion process.

[0174] Electrochemical reaction: Study the possible electrochemical reactions triggered by different solutes during the electro-explosion process and analyze their effects on the current path, energy release, and jet formation.

[0175] Jet characteristics: Observe the changes in jet characteristics (such as jet shape, ejection angle, etc.) under different solute conditions through high-speed photography or other imaging techniques to further understand the influence of solutes on jet dynamics.

[0176] Conductivity monitoring and regulation: Develop a conductivity measurement and regulation system to monitor the conductivity of water in real time and optimize the conductivity by adding appropriate electrolytes to ensure efficient energy conversion during the electro-explosion process.

[0177] Comprehensive performance testing: Establish a complete jet performance testing system, adjust the physical properties of water, conduct system tests, record data such as jet velocity, pressure, and temperature, and establish a data model to analyze the jet performance under different conditions.

[0178] By implementing the above technical solutions, effective regulation of the ultra-high-speed jet velocity can be achieved. Changing the physical properties of water, such as temperature, density, viscosity, and conductivity, will significantly improve the energy conversion efficiency during the electro-explosion process, thereby achieving a higher-velocity jet. This method not only improves the adjustability of the jet velocity but also provides new ideas and methods for optimizing jet characteristics in different application scenarios.

[0179] Step 2: Obtain the structural parameters of the wire structure. The structural parameters of the wire structure include the shape, material, and length of the wire structure, as well as the diameters of all the wires in the wire structure.

[0180] Step 2 includes:

[0181] Step 2-1: Obtain multiple groups of to-be-determined structural parameter groups of the wire structure, and use the ultra-high-speed jet velocity regulating device to determine the jet velocity corresponding to each group of to-be-determined structural parameter groups.

[0182] Step 2-2: Determine the target jet velocity with the smallest absolute value of the difference from the target jet velocity as the structural parameters of the wire structure.

[0183] When wire electro-explosion occurs in water, the characteristics of the wire directly affect its heating and evaporation processes. Factors such as the material, diameter, length, and structure of the wire determine the energy release and bubble formation during electro-explosion, thereby affecting the velocity of the final jet.

[0184] Adjust the wire:

[0185] (1) Selection of wire material: Wires of different materials (such as aluminum, copper, nickel, etc.) have different thermal conductivities, melting points, and resistivities. Selecting a suitable wire material can achieve higher energy conversion efficiency under the same voltage, thereby increasing the jet velocity. The selection of the wire material needs to be based on experimental data to optimize its thermal response characteristics.

[0186] (2) Adjustment of wire diameter: The diameter of the wire affects its surface area and resistance. A thinner wire can heat and evaporate faster when current passes through, thereby generating a jet with a higher velocity. However, an overly thin wire may result in insufficient strength, affecting stability. Therefore, it is necessary to find an appropriate diameter range in the experiment to balance the heating efficiency and structural strength.

[0187] (3) Adjustment of wire length: The length of the wire has an important influence on the current distribution and energy release. A longer wire can provide a longer heating time, but it may also lead to energy dissipation. Therefore, adjusting the length of the wire can optimize the jet formation process, thereby affecting the jet velocity. In the specific implementation process, the length of the wire can be adjusted by adjusting the distance between the metal grounding end and the high-voltage end.

[0188] (4) Pretreatment of the wire: By performing surface treatment on the wire (such as polishing, oxidation, etc.), its surface characteristics can be changed, affecting the energy release efficiency during electro-explosion. The treated wire may produce a more uniform energy release during electro-explosion, thereby increasing the velocity and stability of the jet.

[0189] The shape and arrangement of the wire array directly affect the pressure wave and hydrodynamic characteristics generated during the electro-explosion process. The inverted frustum cone structure can optimize the electric field distribution, enabling the current to be evenly distributed within the wire array, thereby achieving more efficient energy release and stronger jet impact force.

[0190] Design of the inverted frustum cone structure: The inverted frustum cone structure with a larger top and smaller bottom can effectively concentrate the current and increase the electric field strength. This structure results in a higher density of wires at the bottom, enabling it to better withstand the concentration of current density, raise the local temperature, and promote faster gasification and jet formation.

[0191] Wire arrangement: Adopting the inverted frustum cone arrangement can optimize the spacing and angle between the wires, increasing the effective area for current passage, thereby improving the energy conversion efficiency. The optimization of the arrangement helps generate a stronger shock wave, pushing the water flow outward to form a high-speed jet.

[0192] Fixed groove design: The wire array is fixed between the high-voltage electrode and the ground electrode by grooving. The design of the groove depth and shape can affect the fixing stability of the wire and its response characteristics during the electro-explosion process. A reasonable groove design can effectively reduce the influence of wire movement and ensure the stability of the jet.

[0193] Voltage: By adjusting the voltage, pulse frequency, and duration between the electrodes, the heating rate and bubble formation rate of the wire array during the electro-explosion process can be controlled, thereby affecting the jet velocity. Combining the advantages of the inverted frustum cone structure can further optimize the formation and velocity of the jet.

[0194] Design and optimization of the wire array structure:

[0195] Design inverted frustum cone wire arrays with different diameters, conduct numerical simulations and experimental tests, evaluate their performance during the electro-explosion process, and determine the optimal structural parameters.

[0196] Wire arrangement experiment: Conduct experiments on different arrangements, record the relationship between the jet velocity and the wire arrangement, and establish a mathematical model to predict the jet velocity under different arrangement conditions.

[0197] Research on grooving fixation technology: Conduct research on groove depth, shape, and material selection to ensure the stability of the wire array under high-voltage conditions while reducing the loss during current passage.

[0198] Real-time monitoring and feedback system: Establish a real-time monitoring system to record parameters such as jet velocity, temperature, and pressure during the electro-explosion process. Combine data analysis methods to feedback and adjust the structure of the wire array and the power supply parameters to achieve the best jet velocity regulation.

[0199] By implementing the above technical solutions, the velocity of the ultra-high-speed jet can be effectively adjusted. By optimizing the electric field distribution and energy release using the structure of the inverted frustum-shaped metal wire array, it is possible to improve the stability and consistency of the jet while ensuring that the jet velocity exceeds 1 km / s. In addition, this method has high flexibility and can be adjusted according to different application requirements, promoting the wide application of ultra-high-speed jet technology in the industrial and scientific research fields.

[0200] Step 3: Replace the metal wire structure based on the structural parameters and start the power supply to obtain the current fluid temperature in the tank.

[0201] Step 4: Adjust the temperature control device based on the current fluid temperature in the tank so that the current fluid temperature in the tank is within the range of the fluid temperature in the tank corresponding to the target working condition.

[0202] Step 5: Obtain multiple groups of power supply parameter sets and use the ultra-high-speed jet velocity adjustment device to determine the jet velocity corresponding to each group of power supply parameter sets.

[0203] Step 6: Using the power supply parameter set as the independent variable and the jet velocity as the dependent variable, fit the multiple groups of power supply parameter sets and the jet velocities corresponding to the multiple groups of power supply parameter sets to obtain the current / voltage-velocity relationship. The power supply parameter set includes the current and voltage output by the power supply.

[0204] Step 7: Obtain the current jet velocity.

[0205] Step 8: Determine the difference between the current jet velocity and the target jet velocity.

[0206] Step 9: Based on the difference and the current / voltage-velocity relationship, use the feedback adjustment mechanism to determine the current adjustment amount and the voltage adjustment amount. The feedback adjustment mechanism is a linear control algorithm or a non-linear control algorithm.

[0207] Step 10: Control the power supply based on the current adjustment amount and the voltage adjustment amount.

[0208] This application uses the metal wire to be rapidly heated and evaporated under the action of high-voltage current to form a mixture of gas and liquid, generating a strong shock wave, thereby forming a high-velocity water jet. The velocity of the jet is closely related to the explosion energy of the metal wire, the explosion rate, and the intensity of the subsequent shock wave. Adjusting the current of the high-voltage electricity can directly affect the heating process of the metal wire and the efficiency of the electrical explosion, thereby changing the velocity of the jet. The specific mechanism is as follows:

[0209] (1) Current intensity and energy release: An increase in the current intensity will lead to an increase in the heating rate of the metal wire, causing it to reach the critical temperature in a shorter time, thereby increasing the release of explosion energy. This increase in energy is directly converted into the kinetic energy when the jet is formed, thereby achieving a higher jet velocity.

[0210] Control of the explosion process:

[0211] (2) The regulation of high - voltage current also affects the electro - explosion process, including the duration of the explosion and the instantaneous energy release of the explosion. By precisely regulating the current, the control of the explosion process can be achieved, the formation of the jet can be optimized, and the stability of the jet velocity can be improved.

[0212] (3) Regulation of jet angle and shape: By regulating the current, the velocity of the jet can be changed to meet different application requirements. For example, in some applications, a more concentrated and higher - velocity jet may be required, while in other applications, a more dispersed jet may be needed.

[0213] The influence of regulating the voltage of high - voltage electricity on the jet velocity is mainly reflected in the following aspects:

[0214] (1) Voltage - current relationship: In the case of a fixed resistance, an increase in voltage directly leads to an increase in current. The increased current enables the wire to obtain more energy per unit time, thus accelerating the heating rate and evaporation rate, ultimately resulting in a higher - energy explosion and a higher - velocity jet.

[0215] (2) Increase in explosion energy: The increase in high - voltage can enhance the energy output of the electro - explosion, enabling the wire to release more energy instantaneously. This increase in energy can effectively enhance the kinetic energy of the generated jet and increase the jet velocity.

[0216] (3) Bubble formation and collapse process: During the electro - explosion process, the wire evaporates instantaneously to form bubbles, and the growth and collapse of the bubbles are important factors affecting the jet velocity. A higher voltage can promote the rapid formation of bubbles and enhance the energy release during their collapse, thereby further increasing the jet velocity.

[0217] To study the influence of the current and voltage of high - voltage electricity on the velocity of ultra - high - speed jets, a series of experiments need to be designed first. The experiments need to control the variables of current and voltage and record the corresponding jet velocities. The specific steps are as follows:

[0218] Experimental equipment: Configure a high - voltage power supply, a wire, and measuring equipment (high - speed camera).

[0219] Sample preparation: Select appropriate wire materials (such as aluminum wire, copper wire, etc.) and ensure that their diameters and lengths are consistent.

[0220] Variable setting: Set different high - voltage values and current values respectively. In the experiment, the voltage can be divided into several levels (such as 10 kV, 15 kV, 20 kV, 25 kV, 30 kV, etc.), and multiple current values (such as 5 A, 10 A, 15 A, 20 A, 25 A, etc.) are set at each voltage.

[0221] Under each experimental condition, the following data were recorded:

[0222] Current value (I), voltage value (U), and jet velocity (V): The jet was photographed using a high-speed camera, and the jet velocity was calculated through image processing software.

[0223] Based on the data collected through experiments, data analysis can be carried out to determine the relationship between current and voltage and jet velocity. The curve fitting method was used to analyze the effects of current and voltage on jet velocity. The specific steps are as follows:

[0224] Data arrangement: Different combinations of current and voltage and their corresponding jet velocities were arranged in a table.

[0225] Model selection: According to the distribution of experimental data, a suitable mathematical model was selected for fitting (such as polynomial fitting, exponential fitting, etc.).

[0226] Fitting calculation: Statistical software (such as MATLAB, SciPy library in Python, etc.) was used for curve fitting to obtain the fitting equation and its related parameters.

[0227] If the data shows a linear relationship, the method of linear regression analysis can be adopted:

[0228] Construct a linear model: Set the form of the linear model as: V = aI + bU + c, where V is the jet velocity, I is the current, U is the voltage, and a, b, c are undetermined parameters.

[0229] Least squares method: The least squares method was used to solve the parameters of this linear model to obtain the best fitting line.

[0230] Correlation analysis: Calculate the coefficient of determination R 2 value to evaluate the goodness of fit of the model.

[0231] After obtaining the experimental data and fitting results, determine the effects of current and voltage on jet velocity:

[0232] Effect of current on jet velocity: Analyze the change trend of jet velocity under different current values and discuss its physical mechanism (such as heating rate, energy release, etc.).

[0233] Effect of voltage on jet velocity: Similarly, analyze the change of jet velocity under different voltages and compare it with the effect of current.

[0234] Comprehensive effect: Explore how the combined action of current and voltage affects jet velocity and possible interaction mechanisms, etc.

[0235] The relationship obtained through linear regression is:

[0236] V = aI + bU + c.

[0237] Among them, the undetermined coefficients are: a = 50 m / (s·A), b = 0.05 m / (s·V), c = 70 m / s.

[0238] For example: I = 10 A, U = 20000 V, then V = 1570 mls.

[0239] I = 20 A, U = 30000 V, then V = 2570 mls.

[0240] According to the above relationship, a jet velocity adjustment mechanism can be designed, and the specific steps are as follows:

[0241] Establish a control system: Integrate a high-voltage power supply in the jet device and equip it with a control system with adjustable current and voltage. Use sensors to monitor the jet velocity in real time and feedback it to the control system.

[0242] Set the target velocity: According to the application requirements, set the target value of the required jet velocity.

[0243] Calculate the required current and voltage: Use the established relationship formula to calculate the required current and voltage in reverse. By adjusting the combination of current and voltage, the target jet velocity is satisfied.

[0244] Use the control system to gradually adjust the current and voltage of the high-voltage power supply, and monitor the change of the jet velocity in real time. Use feedback control to ensure that the jet velocity is stable near the set value.

[0245] Install a high-speed camera in the jet device to monitor the jet velocity in real time, ensure the rapid response of the system. Record the jet velocity data under different currents and voltages, and conduct analysis to optimize the control algorithm. According to the historical data and real-time feedback, continuously optimize the adjustment strategy of current and voltage to achieve higher jet velocity and better stability. Study the optimal combination of current and voltage under different working conditions to adapt to various application scenarios. Through the above methods, the jet velocity of the ultra-high-speed jet device can be effectively adjusted according to the relationship between the current and voltage of the high-voltage electricity and the jet velocity. This adjustment mechanism not only improves the precise control ability of the jet velocity, but also provides flexible adaptability for different application requirements. Ensure that the jet velocity can be adjusted and optimized in real time in practical applications to meet specific technical requirements and operating conditions.

[0246] This application aims to address multiple deficiencies in the prior art and enhance the generation of ultra-high-speed jets and their application effects. Regarding the problem that traditional ultra-high-speed jet technologies usually rely on fixed parameters, making it difficult to precisely adjust the jet velocity and unable to flexibly respond in different application scenarios; this application can achieve fine adjustment of the jet velocity by adjusting the magnitudes of current and voltage, the properties of the metal wire, and the structure of the metal array. This adjustable ability enables this application to adapt to various industrial requirements, such as cleaning, cutting, and material processing, providing more flexible solutions. Regarding the problem in the prior art that the energy release and utilization efficiency are not high, resulting in the jet velocity not reaching the expected effect and serious energy loss; this application can effectively improve the energy concentration and release efficiency, maximize the intensity of the shock wave, and thus significantly increase the jet velocity by improving the material selection and array structure of the metal wire. This optimization can reduce energy waste and improve the overall system performance. Regarding the prior art deficiency: in the prior art, the adjustment of the physical properties of the fluid is relatively limited and often cannot meet the requirements of jet effects in different environments; this application provides various solutions for adjusting the fluid state by adjusting the physical properties of the fluid (such as temperature, pressure, and additives), and can optimize the jet effect under different conditions. This flexibility enables this application to maintain excellent performance in complex environments. Regarding the problem that in traditional ultra-high-speed jet systems, the stability and controllability of the jet are poor and are easily affected by external disturbances; this application can effectively enhance the stability of the jet and reduce the influence of external disturbances by introducing a reflector and optimizing its design. At the same time, the application of a real-time monitoring and feedback adjustment mechanism significantly improves the controllability of the jet, ensuring that a stable ultra-high-speed jet can be generated under various operating conditions. Regarding the problem that the application scope of the prior art is usually limited by factors such as velocity, energy efficiency, and stability and is difficult to be widely applied in different fields. The multiple adjustment mechanisms and high-efficiency jet generation method of this application greatly expand its application potential in fields such as aerospace, material processing, and medical treatment. It will be able to meet the needs of different industries for ultra-high-speed jets and promote the development of related technologies. In summary, through improvements targeting the deficiencies of the prior art, this application provides an integrated, high-efficiency, and flexibly adjustable method for adjusting the ultra-high-speed jet velocity, significantly enhancing the performance and application effects of the jet, and having a broad market application prospect.

[0247] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0248] In this text, specific examples are used to elaborate on the principles and implementation manners of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. At the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. An ultra-high-speed jet speed regulating device, characterized in that: The ultra-high-speed jet speed regulating device is applied to an underwater metal wire electric explosion jet generating device, which comprises: a power supply, an electrode system, a metal wire structure, a water tank and a control system; the water tank is used to hold a fluid; the metal wire structure is immersed in the fluid; the power supply is connected to the metal wire structure through the electrode system; the control system is connected to the power supply; the power supply is used to cause the metal wire structure to undergo electric explosion to generate an ultra-high-speed jet; The ultra-high-speed jet velocity regulating device comprises: a velocity measuring device; The velocity measuring device is used to obtain the current jet velocity; The control system is used to determine the current regulation amount and the voltage regulation amount according to the difference between the current jet velocity and the target jet velocity by using the current / voltage-velocity relationship, and control the power supply based on the current regulation amount and the voltage regulation amount.

2. The ultra-high-speed jet velocity regulating device according to claim 1, characterized in that: The metal wire structure is a hollow metal wire array; A reflector is disposed in the cavity of the metal wire structure; The reflector is used for reflecting the explosion shock wave of the metal wire structure to increase the jet velocity.

3. The ultra-high-speed jet velocity regulating device according to claim 2, characterized in that: The reflector is a cylindrical structure.

4. The ultra-high-speed jet velocity regulating device according to claim 1, characterized in that: The ultra-high-speed jet speed regulating device also includes: Fluid temperature measuring device and temperature control device in the tank; The fluid temperature measuring device and the temperature control device are both connected to the control system; The fluid temperature measuring device is used to obtain the current temperature of the fluid in the tank; The control system is used to adjust the temperature control device based on the current temperature of the fluid in the tank, so that the current temperature of the fluid in the tank is within the temperature range of the fluid in the tank corresponding to the target working condition.

5. The ultra-high-speed jet velocity regulating device according to claim 4, characterized in that: The ultra-high-speed jet velocity regulating device further comprises: a fluid replacement assembly; The fluid replacement assembly is connected to the control system; The control system is used to control the fluid replacement component to replace the target fluid and monitor the state of the target fluid; the state includes the temperature, pressure and flow rate of the target fluid.

6. The ultra-high-speed jet velocity regulating device according to claim 5, characterized in that: The fluid replacement assembly includes: an inlet sensor group, a circulation pump and an outlet sensor group; The inlet of the water tank is connected to the target fluid containing device through an inlet pipe; The outlet of the water tank is connected to the waste water tank through an outlet pipe; The inlet sensor group is arranged at the inlet of the water tank; The outlet sensor group is arranged at the outlet of the water tank; the inlet of the water tank and the outlet of the water tank are both provided with switch valves; The circulating pump is arranged on the inlet pipe; The inlet sensor group, the circulation pump, the outlet sensor group and the switch valve are all connected to the control system; the control system is also used to adjust the opening of the switch valve.

7. The ultra-high-speed jet velocity regulating device according to claim 6, characterized in that: The inlet sensor group and the outlet sensor group both include: a temperature sensor, a pressure sensor and a flow sensor.

8. The ultra-high-speed jet velocity regulating device according to claim 7, characterized in that: The speed measuring device comprises: High-speed camera system and data processing unit; The data processing unit is connected to the high-speed camera system and the control system respectively; The high-speed camera system is used to obtain jet motion images; The data processing unit is used to determine a jet motion image based on the jet motion image.

9. A method for adjusting the speed of an ultra-high-speed jet, characterized in that: The ultra-high-speed jet speed adjustment method is applied to the ultra-high-speed jet speed adjustment device according to any one of claims 1 to 8, and the ultra-high-speed jet speed adjustment method comprises: Controlling the fluid replacement component so that the water tank contains the target fluid that meets the target working condition; the parameters of the target fluid correspond to the target working condition one by one; the parameters of the target fluid are the solute type and ratio; Acquire structural parameters of the metal wire structure; the structural parameters of the metal wire structure include shape, material and length of the metal wire structure, and diameters of all metal wires in the metal wire structure; The metal wire structure is replaced based on the structural parameters, and a power supply is started to obtain the current temperature of the fluid in the tank; Adjusting the temperature control device based on the current temperature of the fluid in the tank so that the current temperature of the fluid in the tank is within the temperature range of the fluid in the tank corresponding to the target working condition; Acquire multiple power parameter groups, and use an ultra-high-speed jet velocity adjustment device to determine the jet velocity corresponding to each power parameter group; Taking the power parameter group as the independent variable and the jet velocity as the dependent variable, multiple power parameter groups and the jet velocities corresponding to the multiple power parameter groups are fitted to obtain the current / voltage-velocity relationship; the power parameter group includes the current and voltage output by the power supply; Get the current jet velocity; Determine the difference between the current jet velocity and the target jet velocity; Based on the difference and the current / voltage-speed relationship, a current regulation amount and a voltage regulation amount are determined by using a feedback regulation mechanism; the feedback regulation mechanism is a linear control algorithm or a nonlinear control algorithm; The power supply is controlled based on the current adjustment amount and the voltage adjustment amount.

10. The ultra-high-speed jet velocity adjustment method according to claim 9, characterized in that: The obtaining of structural parameters of the metal wire structure comprises: Acquire multiple groups of undetermined structural parameter groups of the metal wire structure, and determine the jet velocity corresponding to each group of undetermined structural parameter groups by using an ultra-high-speed jet velocity adjustment device; The target jet velocity with the smallest absolute value of difference from the target jet velocity is determined as the structural parameter of the metal wire structure.

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