Groove type filamentation impact generating device and method based on liquid metal

Abstract

The invention discloses a groove type filamentation impact generating device and method based on liquid metal, and belongs to the technical field of impact generating devices.The groove type filamentation impact generating device comprises a device body, a liquid metal filamentation groove array, a liquid metal pushing mechanism, a high-voltage electrode, a ground electrode and a pulse power mechanism; a liquid metal filamentation groove array is distributed on the peripheral side of the explosion chamber, a liquid metal pushing mechanism is arranged above the explosion chamber and connected with the liquid metal filamentation groove array, the outer side of the liquid metal pushing mechanism is connected with a high-voltage electrode, and the lower end of the liquid metal filamentation groove array is connected with a ground electrode. And the other ends of the high-voltage electrode and the ground electrode are connected with the pulse power mechanism to form a loop. The liquid metal wire forming groove array is adopted, the stable liquid metal wires are formed in the grooves, strong shock waves are generated during discharging, the liquid metal can stably form wires in the grooves, and the problem that an existing vertical hanging deicing device shakes on a power transmission line and cannot effectively generate impact can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of impact generating devices, and in particular to a liquid metal-based slot-type wire-forming impact generating device and method. Background Art

[0002] my country is a vast country, with electricity generation and consumption often exhibiting regional imbalances. Furthermore, industrial development and shifting urban development strategies have led to transmission lines spanning vast distances. As the scale of the power grid continues to expand, transmission lines cover wider areas, traversing more complex terrain and climatic conditions. Icing is a growing problem, especially across high-altitude mountainous regions or low-temperature valleys. In high-altitude, cold regions, and areas with harsh winter climates, transmission line ground wires are susceptible to ice accumulation due to low temperatures and moisture, posing a threat to the safe operation of transmission lines. Effective de-icing methods are necessary to ensure stable power grid operation in various environments.

[0003] Every year, during extremely cold and snowy weather, State Grid Corporation of China (SGCC) must invest significant manpower and financial resources to patrol and de-icer its lines. However, existing de-icing tools still fall short of meeting these requirements, leaving significant room for improvement. Currently, the mainstream de-icing devices utilize two methods: melting and mechanical vibration. Melting involves heating the ice with high temperatures or using chemicals to lower its melting point. This method can affect the conductors and is inefficient, making it less commonly used on overhead lines. Vibration, on the other hand, involves using a power source to generate mechanical force, vibrating the ice and breaking it apart. This power source is typically gunpowder or electric blasting. While commonly used for de-icing transmission lines, gunpowder suffers from long activation intervals, strict regulations, and limited carry capacity. Electric blasting involves using wires in a complex feed mechanism, which is susceptible to shock and has limited impact effectiveness.

[0004] Relevant research on de-icing technology using liquid metal as an explosion source has solved the current problem of mechanical vibration power source to a certain extent. The fluidity of liquid metal and the plasticity of the oxide layer are used to form metal wires, and large current explosions are used to generate impact force to de-ice. However, if this method is to be extended to form an automatic identification de-icing system with multi-dimensional detection, the de-icing device needs to be hung on the transmission line conductor and ground wire for a long time, and the effective spacing distance of the upper, middle and lower distributed conductors must be considered. The application of the de-icing system composed of vertically hung de-icing devices is limited. It is urgent to solve the problem that the liquid metal wire cannot be fixed for a long time and cannot resist the shaking of the line to form a stable wire. Summary of the Invention

[0005] In view of this, the present invention addresses the deficiencies in the prior art and provides a liquid metal-based slot-type wire-forming impact generating device and method.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a slot-type wire-forming impact generating device based on liquid metal, comprising a device body, a liquid metal wire-forming slot array, a liquid metal pushing mechanism, a high-voltage electrode, a ground electrode and a pulse power mechanism, an explosion chamber is arranged in the device body, and a liquid metal wire-forming slot array is distributed around the explosion chamber. A liquid metal pushing mechanism is arranged above the explosion chamber, and the liquid metal pushing mechanism is connected to the liquid metal wire-forming slot array. The outer side of the liquid metal pushing mechanism is connected to the high-voltage electrode, and the lower end of the liquid metal wire-forming slot array is connected to the ground electrode. The other ends of the high-voltage electrode and the ground electrode are both connected to the pulse power mechanism to form a loop; The liquid metal wire forming slot array comprises a supporting slot wall, an insulating layer and a plurality of grooves, wherein the plurality of grooves are evenly distributed on the inner side of the supporting slot wall and the insulating layer is arranged on the outer side; The liquid metal pushing mechanism includes a control unit and a plurality of pushing units, wherein the plurality of pushing units are connected to the control unit, and the plurality of pushing units correspond to the number and position of the plurality of grooves one by one; The pushing unit includes a pusher and a metal conduit. The lower end of the pusher is connected to the metal conduit, and the lower part of the metal conduit is connected to the high-voltage electrode. The reaction material liquid metal is placed inside the pusher. The pusher pushes the reaction material liquid metal through the metal conduit into the groove for reaction; The explosion chamber is filled with a weakly compressible aqueous solution, and an inclined wall is formed inside the explosion chamber and is inclined upward along the groove, and the inclined wall is connected to the impact output port located at the top of the explosion chamber; The pulse power mechanism includes a high-voltage wire and a ground wire, wherein the high-voltage wire is connected to the high-voltage electrode, and the ground wire is connected to the ground electrode to form an energy release loop.

[0007] Furthermore, the pulse power mechanism also includes a high-voltage power supply, a pulse capacitor, a high-voltage switch, a low-voltage power supply and a battery. The high-voltage power supply, high-voltage diode, charging current limiting resistor, pulse capacitor and high-voltage switch are connected in sequence, and the low-voltage power supply, switch current limiting resistor and high-voltage switch are connected in sequence. The high-voltage switch has an inflation hole on its surface. The high-voltage switch is connected to the high-voltage wire. The high-voltage power supply, pulse capacitor and low-voltage power supply are all connected to the ground wire and grounded. The high-voltage power supply and the low-voltage power supply are both powered by the battery.

[0008] Furthermore, the control unit includes a controller, and the controller remotely controls the pusher through a built-in communication module to push out the liquid metal of the reaction material inside the pusher.

[0009] Furthermore, a flow limiting valve is provided inside the metal conduit to control the flow rate and flow speed of the liquid metal of the reaction material inside the metal conduit.

[0010] Furthermore, insulating rubber is provided on the outside of the metal conduit to prevent high voltage breakdown.

[0011] Furthermore, the control unit also includes a control signal generator, a high-voltage relay switch, a communication module, a wire, a low-voltage current-limiting resistor and a power supply. The communication module, the control signal generator and the high-voltage relay switch are signal-connected in sequence. The high-voltage relay switch is connected in series with the power supply and is respectively connected to the metal conduit and the ground electrode through wires. The low-voltage current-limiting resistor is set on both of the wires.

[0012] Furthermore, the method for using the liquid metal-based slot-type wire-forming impact generating device comprises the following steps: S1. Check whether the pusher of the liquid metal pushing mechanism is filled with liquid metal, check whether the explosion chamber is filled with a weakly compressible aqueous solution, check whether the high-voltage electrode, ground electrode and pulse power mechanism are firmly and reliably connected, check whether the pulse power mechanism is well grounded, adjust the current limiting valve to the appropriate position, and check the air tightness of the high-voltage switch; S2. The remote controller controls the pusher to push the liquid metal stored in the pusher into the metal conduit; S3. The communication module remotely controls the signal generator to close the high-voltage relay switch, so that the control signal is transmitted to the metal conduit and the ground electrode through the wire, thereby forming an electric field and a microcurrent in the liquid metal filament forming slot array between the metal conduit and the ground electrode, generating electrochemical and electrocapillary effects to reduce the surface tension of the liquid metal of the reaction material, thereby forming a stable liquid metal filament in the groove of the liquid metal filament forming slot array; S4. Remotely control the signal generator through the communication module to turn off the high-voltage relay switch, isolate the power supply and the conductive path of the metal conduit, turn on the battery switch to power the high-voltage power supply and the low-voltage power supply, control the high-voltage power supply to charge the pulse capacitor to a preset voltage, stop charging, and control the low-voltage power supply to form a stepped electric field in the high-voltage switch, so that the gap of the high-voltage switch is broken down. The pulse capacitor is connected in series with the liquid metal of the reaction material in the liquid metal filament array through the high-voltage switch, the high-voltage wire, and the ground wire to form a discharge circuit. The energy stored in the pulse capacitor is released in a short time to the liquid metal wire of the reaction material in the liquid metal filament array, causing the liquid metal wire of the reaction material to quickly vaporize and break down to form plasma, which expands and pushes the weakly compressible aqueous solution in the explosion chamber to form a shock wave; S5. Repeat steps S2-S4 to achieve multiple discharges, and generate shock waves by repeated discharges.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention uses liquid metal as the detonating material, and forms a filament in the groove by virtue of its fluidity. The large current is used to vaporize it to form a plasma state expansion, and evaporate the surrounding aqueous solution to form an explosion. The groove serves as a directional fixing mechanism, which ensures that the liquid metal is formed into a filament while making use of the large tension on the surface of the liquid metal to make the liquid metal adhere to the inside of the groove. Even if the device vibrates or tilts, it will not break or deform.

[0014] (2) The liquid metal wire array structure can achieve the simultaneous explosion of multiple liquid metal wires, achieving greater energy output. At the same time, the structure of the wire array is highly adjustable, and the explosion impact force can be effectively adjusted by controlling the number of wires in the wire array.

[0015] (3) The explosion chamber structure can ensure that the impact force generated by the liquid metal explosion is concentrated at one point, making it easy to use the device in the field of impact blasting.

[0016] (4) The fluidity of liquid metal ensures that in the event of incomplete or insufficient explosion, some metal wires that have not yet vaporized will not block the wire feeding channel, thus ensuring the long-term durability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view of an embodiment of the present invention; Figure 2 is a top view of a liquid metal wire forming slot array according to an embodiment of the present invention; Figure 3 is a partial top view of the liquid metal wire forming slot array in an embodiment of the present invention; Figure 4 1 is a front view of the liquid metal pushing mechanism in an embodiment of the present invention; Figure 5 is a front view of the explosion chamber in an embodiment of the present invention; Figure 6 4 is a front view of the pulse power mechanism in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0019] Example: Refer to Figures 1-6A liquid metal-based slot-type wire-forming impact generating device includes a device body, a liquid metal wire-forming slot array 200, a liquid metal pushing mechanism 100, a high-voltage electrode 400, a ground electrode 500 and a pulse power mechanism. The device body is provided with an explosion chamber 300, and the liquid metal wire-forming slot array 200 is distributed around the explosion chamber 300. A liquid metal pushing mechanism 100 is provided above the explosion chamber 300, and the liquid metal pushing mechanism 100 is connected to the liquid metal wire-forming slot array 200. The outer side of the liquid metal pushing mechanism 100 is connected to the high-voltage electrode 400, and the lower end of the liquid metal wire-forming slot array 200 is connected to the ground electrode 500. The other ends of the high-voltage electrode 400 and the ground electrode 500 are both connected to the pulse power mechanism to form a loop. The liquid metal filament forming groove array 200 includes a supporting groove wall 201, an insulating layer 202 and a plurality of grooves 203. The plurality of grooves 203 are evenly distributed on the inner side of the supporting groove wall 200, and the insulating layer 202 is arranged on the outer side to ensure that the large current released by the pulse power mechanism 600 is not diverted by the supporting groove wall 201; each groove 203 contains the reaction material liquid metal 106, which is responsible for ensuring the stability of the reaction material liquid metal 106.

[0020] The liquid metal 106, the reaction material inside the liquid metal wire-forming groove array 200, can quickly vaporize and expand under the action of the large current released by the pulse power mechanism, forming plasma to push the aqueous solution inside the explosion chamber 300 to form a shock wave 204. Multiple shock waves 204 converge to form a shock confluence 205 to act on external objects.

[0021] The liquid metal pushing mechanism 100 includes a control unit and multiple pushing units, and the multiple pushing units are all connected to the control unit. The pushing units correspond to the number and position of the grooves 203 one by one; the pushing unit includes a pusher 102 and a metal conduit 105, the lower end of the pusher 102 is connected to the metal conduit 105, and the lower part of the metal conduit 105 is connected to the high-voltage electrode 400. The reaction material liquid metal 106 is placed inside the pusher 102, and the pusher 102 pushes the reaction material liquid metal 106 into the groove 203 through the metal conduit 105 for reaction; a flow limiting valve 103 is set inside the metal conduit 105 to control the flow rate and flow speed of the reaction material liquid metal 106 inside the metal conduit 105; an insulating rubber 104 is set on the outside of the metal conduit 105 to prevent high-voltage breakdown.

[0022] The explosion chamber 300 is filled with a weakly compressible aqueous solution (e.g., a 0.1 mol / L NaHCO3 solution). An inclined wall 303 is formed inside the explosion chamber 300 and is inclined upward along the groove 203. The inclined wall 303 is connected to a shock output port 304 located at the top of the explosion chamber 300. When the liquid metal 106 reacts in the groove 203 of the liquid metal wire forming groove array 200 to generate shock waves, the shock waves are guided to the shock output port 304 through the inclined wall 303. The pulse power mechanism includes a high-voltage wire 606 and a ground wire 611, wherein the high-voltage wire 606 is connected to the high-voltage electrode 400, and the ground wire 611 is connected to the ground electrode 500 to form an energy release circuit; the pulse power mechanism also includes a high-voltage power supply 601, a pulse capacitor 604, a high-voltage switch 605, a low-voltage power supply 607 and a battery 612, wherein the high-voltage power supply 601, the high-voltage diode 602, the charging current limiting resistor 603, the pulse capacitor 604 and the high-voltage switch 605 are connected in sequence, and the high-voltage diode 602 is used to limit the pulse capacitor 604. 04 charging current direction, the low-voltage power supply 607, the switch current limiting resistor 608, and the high-voltage switch 605 are connected in sequence. The surface of the high-voltage switch 605 has an inflation hole 609, so that the inside of the high-voltage switch 605 is filled with inert gas to ensure that the high-voltage switch 605 is not broken down by the high voltage. The high-voltage switch 605 is connected to the high-voltage wire 606. The high-voltage power supply 601, the pulse capacitor 604 and the low-voltage power supply 607 are all connected to the ground wire 611 and grounded. The high-voltage power supply 601 and the low-voltage power supply 607 are both powered by the battery 612.

[0023] The control unit includes a controller 101 , and the controller 101 remotely controls the pusher 102 via a built-in communication module to push out the liquid metal 106 , a reaction material inside the pusher.

[0024] In other embodiments, the control unit further includes a control signal generator 107, a high-voltage relay switch 108, a communication module 109, a wire 110, a low-voltage current-limiting resistor 112 and a power supply. The communication module 109, the control signal generator 107 and the high-voltage relay switch 108 are connected in sequence by signals. The high-voltage relay switch 108 is located on the control signal generator 107. When the control signal generator 107 outputs a signal, it is closed and disconnected at other times to ensure that the high-voltage signal output by the pulse power mechanism 600 cannot be transmitted to the control signal generator 107. The high-voltage relay switch 108 is connected in series with the power supply and is connected to the metal conduit 107 through the wire 110. 05. The ground electrode 500 is connected, and the low-voltage current-limiting resistor 112 is set on the two wires 110; the high-voltage relay switch 108 is connected to the metal conduit 105, the ground electrode 400, and the power supply through the wire 110, the low-voltage current-limiting resistor 112 to form a loop. When the pusher 102 pushes, a low-voltage current signal is given to the reaction material liquid metal 106 to reduce its surface tension under electrochemical action and capillary action, which is convenient for filament formation in the liquid metal filament forming slot array 200. The low-voltage current-limiting resistor 112 plays a current limiting role, ensuring that the current transmitted by the wire 110 is kept within 2A, ensuring that the control signal generator 107 is not damaged and the reaction material liquid metal 106 is not over-oxidized.

[0025] The method for using the liquid metal slot-type wire-forming impact generating device of the present invention comprises the following specific steps: S1. Check whether the interior of the pusher 102 of the liquid metal pushing mechanism 100 is filled with the reaction material liquid metal 106, check whether the interior of the explosion chamber 300 is filled with a weakly compressible aqueous solution, check whether the high-voltage electrode 400, the ground electrode 500 and the pulse power mechanism are firmly and reliably connected, check whether the pulse power mechanism is well grounded, adjust the current limiting valve 103 to the appropriate position, and check the air tightness of the high-voltage switch 605; S2, the remote controller 101 controls the pusher 102 to push the reaction material liquid metal 106 stored therein into the metal conduit 105; S3. The signal generator 107 is remotely controlled via the communication module 109 to close the high-voltage relay switch 108, so that the current signal is transmitted to the metal conduit 105 and the ground electrode 500 through the wire 110. An electric field and a microcurrent are formed in the liquid metal filament forming slot array 200 between the metal conduit 105 and the ground electrode 500. Electrochemical and electrocapillary effects are generated to reduce the surface tension of the liquid metal 106, thereby forming a stable liquid metal filament in the groove 203 of the liquid metal filament forming slot array 200. S4. The signal generator 107 is remotely controlled through the communication module 109 to turn off the high-voltage relay switch 108, isolate the power supply and the conductive path of the metal conduit 105, open the battery 612 switch to supply power to the high-voltage power supply 601 and the low-voltage power supply 607, control the high-voltage power supply 601 to charge the pulse capacitor 604 to a preset voltage, stop charging, and control the low-voltage power supply 607 to form a stepped electric field in the high-voltage switch 605, so that the gap of the high-voltage switch 605 is broken down. The pulse capacitor 604 is connected in series with the liquid metal 106 of the reaction material in the liquid metal filament array 200 through the high-voltage switch 605, the high-voltage wire 606, and the ground wire 611 to form a discharge circuit. The energy stored in the pulse capacitor 604 is released in a short time to the liquid metal wire of the reaction material in the liquid metal filament array 200, causing the liquid metal wire of the reaction material to quickly vaporize and break down to form plasma, which expands and pushes the weakly compressible aqueous solution in the explosion chamber 300 to form a shock wave; S5. Repeat steps S2-S4 to achieve multiple discharges, and generate shock waves by repeated discharges.

[0026] The vertical placement shown in the accompanying drawings of this embodiment of the present invention is only one of the usage states. In other embodiments, the device can also be placed horizontally or tilted.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field can still modify or replace the specific implementation methods of the present invention with equivalents. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the claims of the present invention.

Claims

1. A liquid metal based slot-type wire forming impact generating device, characterized by: The device comprises a device body, a liquid metal filament slot array, a liquid metal pushing mechanism, a high-voltage electrode, a ground electrode and a pulse power mechanism. An explosion chamber is provided in the device body, the liquid metal filament slot array is distributed around the explosion chamber, a liquid metal pushing mechanism is provided above the explosion chamber, the liquid metal pushing mechanism is connected to the liquid metal filament slot array, the outer side of the liquid metal pushing mechanism is connected to the high-voltage electrode, the lower end of the liquid metal filament slot array is connected to the ground electrode, and the other ends of the high-voltage electrode and the ground electrode are both connected to the pulse power mechanism to form a loop; The liquid metal wire forming slot array comprises a supporting slot wall, an insulating layer and a plurality of grooves, wherein the plurality of grooves are evenly distributed on the inner side of the supporting slot wall and the insulating layer is arranged on the outer side; The liquid metal pushing mechanism includes a control unit and a plurality of pushing units, wherein the plurality of pushing units are connected to the control unit, and the plurality of pushing units correspond to the number and position of the plurality of grooves one by one; The pushing unit includes a pusher and a metal conduit. The lower end of the pusher is connected to the metal conduit, and the lower part of the metal conduit is connected to the high-voltage electrode. The reaction material liquid metal is placed inside the pusher. The pusher pushes the reaction material liquid metal through the metal conduit into the groove for reaction; The explosion chamber is filled with a weakly compressible aqueous solution, and an inclined wall is formed inside the explosion chamber and is inclined upward along the groove, and the inclined wall is connected to the impact output port located at the top of the explosion chamber; The pulse power mechanism includes a high-voltage wire and a ground wire, wherein the high-voltage wire is connected to the high-voltage electrode, and the ground wire is connected to the ground electrode to form an energy release loop.

2. The liquid metal-based slot-type wire-forming impact generating device according to claim 1, characterized in that: The pulse power mechanism also includes a high-voltage power supply, a pulse capacitor, a high-voltage switch, a low-voltage power supply and a battery. The high-voltage power supply, high-voltage diode, charging current-limiting resistor, the pulse capacitor and the high-voltage switch are connected in sequence, and the low-voltage power supply, the switch current-limiting resistor and the high-voltage switch are connected in sequence. The high-voltage switch has an inflation hole on its surface. The high-voltage switch is connected to the high-voltage wire. The high-voltage power supply, the pulse capacitor and the low-voltage power supply are all connected to the ground wire and grounded. The high-voltage power supply and the low-voltage power supply are both powered by the battery.

3. The liquid metal-based slot-type wire-forming impact generating device according to claim 1, characterized in that: The control unit includes a controller, and the controller remotely controls the pusher through a built-in communication module to push out the liquid metal of the reaction material inside the pusher.

4. The liquid metal-based slot-type wire-forming impact generating device according to claim 1, characterized in that: A flow limiting valve is provided inside the metal conduit to control the flow rate and flow speed of the liquid metal of the reaction material inside the metal conduit.

5. The liquid metal-based slot-type wire-forming impact generating device according to claim 1, characterized in that: Insulating rubber is provided on the outside of the metal conduit to prevent high voltage breakdown.

6. The liquid metal-based slot-type wire-forming impact generating device according to claim 3, characterized in that: The control unit also includes a control signal generator, a high-voltage relay switch, a communication module, a wire, a low-voltage current-limiting resistor and a power supply. The communication module, the control signal generator and the high-voltage relay switch are connected in sequence. The high-voltage relay switch is connected in series with the power supply and is respectively connected to the metal conduit and the ground electrode through wires. The low-voltage current-limiting resistor is set on both wires.

7. The method for using the liquid metal-based slot-type wire-forming impact generating device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Check whether the pusher of the liquid metal pushing mechanism is filled with liquid metal, check whether the explosion chamber is filled with a weakly compressible aqueous solution, check whether the high-voltage electrode, ground electrode and pulse power mechanism are firmly and reliably connected, check whether the pulse power mechanism is well grounded, adjust the current limiting valve to the appropriate position, and check the air tightness of the high-voltage switch; S2. The remote controller controls the pusher to push the liquid metal stored in the pusher into the metal conduit; S3. The communication module remotely controls the signal generator to close the high-voltage relay switch, so that the control signal is transmitted to the metal conduit and the ground electrode through the wire, thereby forming an electric field and a microcurrent in the liquid metal filament forming slot array between the metal conduit and the ground electrode, generating electrochemical and electrocapillary effects to reduce the surface tension of the liquid metal of the reaction material, thereby forming a stable liquid metal filament in the groove of the liquid metal filament forming slot array; S4. Remotely control the signal generator through the communication module to turn off the high-voltage relay switch, isolate the power supply and the conductive path of the metal conduit, turn on the battery switch to power the high-voltage power supply and the low-voltage power supply, control the high-voltage power supply to charge the pulse capacitor to a preset voltage, stop charging, and control the low-voltage power supply to form a stepped electric field in the high-voltage switch, so that the gap of the high-voltage switch is broken down. The pulse capacitor is connected in series with the liquid metal of the reaction material in the liquid metal filament array through the high-voltage switch, the high-voltage wire, and the ground wire to form a discharge circuit. The energy stored in the pulse capacitor is released in a short time to the liquid metal wire of the reaction material in the liquid metal filament array, causing the liquid metal wire of the reaction material to quickly vaporize and break down to form plasma, which expands and pushes the weakly compressible aqueous solution in the explosion chamber to form a shock wave; S5. Repeat steps S2-S4 to achieve multiple discharges, and generate shock waves by repeated discharges.

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