CN115930690A - Bunching shock wave rock crushing device and method based on bubble-guided underwater discharge - Google Patents
Bunching shock wave rock crushing device and method based on bubble-guided underwater discharge Download PDFInfo
- Publication number
- CN115930690A CN115930690A CN202211465785.0A CN202211465785A CN115930690A CN 115930690 A CN115930690 A CN 115930690A CN 202211465785 A CN202211465785 A CN 202211465785A CN 115930690 A CN115930690 A CN 115930690A
- Authority
- CN
- China
- Prior art keywords
- electrode
- bunching
- discharge
- cover
- shock wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000035939 shock Effects 0.000 title claims abstract description 81
- 239000011435 rock Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 40
- 230000015556 catabolic process Effects 0.000 claims description 28
- 239000003570 air Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000004401 flow injection analysis Methods 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 6
- 239000002184 metal Substances 0.000 description 15
- 238000007599 discharging Methods 0.000 description 6
- 238000005422 blasting Methods 0.000 description 5
- 239000002360 explosive Substances 0.000 description 4
- 210000003813 thumb Anatomy 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
The utility model provides a gather beam shock wave detritus device and method based on bubble guide underwater discharge, the device includes: during working, a hole needs to be punched in a rock mass, the device body is placed into the hole and fixed through the grounding electrode, water is filled in the hole, the air valve is opened, air bubbles are introduced between the high-voltage electrode and the grounding electrode to form a discharge passage of the pulse power supply, namely the high-voltage electrode, the air bubbles and the grounding electrode, extremely strong shock waves are generated in the discharge process, and the shock waves are reflected through the elliptical spherical bunching cover to further strengthen the power of the shock waves, so that the effect of crushing rocks is achieved. The equipment has the advantages of simple structure, detachability, low cost, good rock crushing effect and repeated utilization.
Description
Technical Field
Relates to the field of geotechnical engineering blasting, in particular to a bunching shock wave rock crushing device and method based on bubble-guided underwater discharge.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The traditional geotechnical engineering blasting field mainly utilizes methods such as chemical explosives to carry out rock crushing, and although long-term research and exploration prove that the accuracy and the safety of explosive blasting are obviously improved, great potential safety hazards still exist during actual operation. The traditional explosive blasting operation has the characteristics of outstanding dangerousness, unpredictability, technical property and the like, and along with the hazards of blasting shock waves, noise, dust, smoke and the like, the effective utilization rate of the explosive is low, and the broken rock and large block rate is high.
At present, the emerging rock crushing method utilizes high-energy shock waves generated by underwater discharge to crush rock. For example, an underwater free breakdown discharge structure or an underwater metal wire guided breakdown discharge structure is adopted, but the underwater free breakdown discharge time is short, and spark discharge is unstable; the metal wire guided breakdown discharge structure is characterized in that a metal wire or a foil is placed in water, and current pulse is introduced, so that the metal wire is rapidly gasified and ionized to present the phenomena of explosion and shock wave. The generation of the shock wave depends on the vaporization of the metal wire, the mass of the metal wire needs to be as large as possible on the premise of ensuring the complete vaporization of the load, however, the selection of the size of the metal wire needs to consider the factors of skin effect, system insulation level, magnetic fluid instability and the like, and the mass cannot be increased without limit. Therefore, on the premise of not changing a load structure, the intensity of the electric explosion shock wave of the metal wire in the water has an upper limit, and the adjustment range of the shock wave parameters is limited; and the metal wire needs to be replaced every time after the discharge is finished, thereby seriously influencing the discharge efficiency.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a bunching shock wave rock breaking device and a bunching shock wave rock breaking method based on bubble-guided underwater discharge, wherein the bubble-guided underwater spark breakdown discharge is adopted, the field intensity inside the bubble is redistributed and enhanced due to the mismatching of the dielectric constants of water and air, the gas breakdown is firstly generated inside the bubble, the occurrence of the stream breakdown in liquid is further triggered, a plasma channel is formed between electrodes, and finally, the complete underwater spark discharge is formed; in the whole discharging process, high-energy shock waves can be efficiently generated, and at the moment, the shock waves are reflected by the elliptical spherical bunching cover, so that the amplitude and the strength of the shock waves are further increased, and a good rock crushing effect is achieved. Compared with an underwater free breakdown discharge structure, the underwater free breakdown discharge structure can work under a longer discharge gap, and stable spark discharge is realized; compared with a structure of leading breakdown discharge by a metal wire, the metal wire does not need to be replaced after the discharge is finished every time, no metal pollutants are generated, and the discharge frequency can be improved.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
the first aspect of the present disclosure provides a bunching shock wave rock breaking device based on bubble-guided underwater discharge.
A bunching shock wave rock breaking device based on bubble guide underwater discharge comprises: the device comprises a pulse power supply device, a shock wave generating device, an air storage tank and a gas flow valve;
the shock wave generating apparatus includes: the high-voltage electrode, the grounding electrode and the elliptical spherical bunching cover;
the pulse power supply device provides pulse voltage for underwater discharge, the shock wave generating device is used for generating and releasing high-energy shock waves, and the air storage tank provides guide bubbles for the underwater discharge;
wherein, high voltage electrode and telluric electricity field are fixed to be set up on oval spherical spotlight cover, and pulse power supply's output links to each other with high voltage electrode, and telluric electricity field center is equipped with the inlet port, through gas flow valve and gas holder connection, and the during operation is opened gas flow valve and is let in the bubble.
As an alternative embodiment, the guided bubble is introduced between the high-voltage electrode and the grounding electrode to form a discharge path of the pulse power supply, the high-voltage electrode, the guided bubble and the grounding electrode, the bubble is broken down to trigger the flow in the liquid to break down, and a plasma channel is formed between the electrodes to complete the underwater spark discharge and release the high-energy shock wave.
As an optional implementation mode, the rock crushing device adopts a detachable structure, the high-voltage electrode and the grounding electrode are designed to be coaxial structures, and the grounding electrode is inserted into a rock body to fix the whole rock crushing device during use.
As an alternative embodiment, the high voltage electrode and the ground electrode are arranged on the axis of one of the foci of the elliptical bunching cover, and the electrodes and the elliptical spherical bunching cover are fixed by fasteners and thumb screws.
As an optional implementation mode, the outside of the electrode is wrapped by an insulating acrylic material so as to prevent surrounding air from generating gas breakdown and triggering spark discharge; the acrylic material is provided with a round hole for screwing a wing-shaped screw to fix the electrode.
As an optional embodiment, the upper part and the lower part of the oval spherical bunching cover are respectively provided with a round hole for inserting the electrode and installing an electrode fastener; the electrode fastener is made of insulating material PVC and is cylindrical, a circular ring structure is arranged at the lower part of the electrode fastener and is used for being sleeved on a circular hole of the elliptical spherical bunching cover, a threaded hole matched with a wing-shaped screw is arranged at the upper part of the electrode fastener, and the electrode can be fixed by screwing the wing-shaped screw.
In an alternative embodiment, the center of the discharge of the device is located at one focal point of the elliptical spherical focusing cover, and the shock waves are reflected by the elliptical spherical focusing cover and are focused at the other focal point, so that the direction of the shock waves is changed and the amplitude of the shock waves is increased.
As an alternative embodiment, the oval spherical bunching cover is made of a special steel material.
As an optional implementation mode, the gas storage tank is provided with a flow valve, the amount of introduced gas can be monitored in real time, and the gas is one or more of air, argon and helium.
A second aspect of the present disclosure provides a method of bunching shock wave rock fragmentation based on bubble guided underwater discharge.
A bunching shock wave rock breaking method based on bubble-guided underwater discharge utilizes the bunching shock wave rock breaking device based on bubble-guided underwater discharge of the first aspect of the disclosure;
placing the rock crushing device into a rock body drilled hole filled with water and fixing the rock crushing device through a grounding electrode;
introducing bubbles between the high-voltage electrode and the grounding electrode to form a discharge path of the pulse power supply, the high-voltage electrode, the guide bubbles and the grounding electrode;
the pulse power supply device generates high-voltage pulse to be applied to the electrodes, bubbles are firstly broken down, flow injection breakdown in liquid is further triggered, a plasma channel is formed between the electrodes, underwater spark discharge is completed, and high-energy shock waves are released;
and (3) reflecting and enhancing the shock wave energy by using the bunching cover so that the shock wave acts on the rock.
Compared with the prior art, the beneficial effect of this disclosure is:
according to the bunching shock wave rock crushing device and the working method based on bubble-guided underwater discharge, through the synergistic effect of the pulse power supply, the high-voltage and low-voltage electrodes, the elliptical spherical bunching cover and the bubbles to be ventilated, the bubbles are punctured to form a plasma channel, and then underwater spark discharge is induced to generate shock waves, so that the rock crushing requirement of practical engineering is met. The bubbles are adopted to guide underwater spark breakdown discharge, so that the generated high-energy shock wave has high strength, good shock wave characteristics and high electric energy conversion rate; the ellipse is used as a bunching cover to reflect the shock wave, so that the intensity of the shock wave is further enhanced, the energy utilization efficiency is improved, and the rock crushing effect is improved; the gas is used for stimulating the discharge, the single discharge is low in cost, the whole rock crushing process is free of pollution discharge, and the device is clean, efficient and low in cost.
Advantages of additional aspects of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic view of a bunching shock wave rock breaking device based on bubble-guided underwater discharge provided in embodiment 1 of the present disclosure.
Fig. 2 is a top view of a bunching shock wave rock breaking device based on bubble-guided underwater discharge provided in embodiment 1 of the present disclosure.
Fig. 3 is a schematic diagram of a beam-bunching shock wave rock breaking device based on bubble-guided underwater discharge provided in embodiment 2 of the present disclosure.
Description of reference numerals: 1-a pulse power supply device; 2-a high voltage electrode; 3-acrylic insulating material; 4-a gas storage tank; 5-gas flow valve; 6-thumb screws; 7-PVC material cylindrical fasteners; 8-an elliptical spherical bunching cover; 9-air inlet holes; 10-a gas transmission pipe; 11-an air inlet valve; 12-ground electrode.
Detailed Description
The present disclosure is further described with reference to the following drawings and examples.
Example 1:
the embodiment 1 of the disclosure provides a bunching impact wave rock breaking device based on bubble-guided underwater discharge, which comprises a pulse power supply device 1 used for generating high-voltage pulses to be applied to electrodes, high-voltage electrodes 2, an insulating acrylic material 3 wrapping the high-voltage electrodes, a gas storage tank 4 used for providing gas, a gas flow valve 5 used for controlling gas inflow, a thumb screw 6, a PVC material cylindrical fastener 7, an oval spherical bunching cover 8, a gas inlet hole 9, a gas conveying pipe 10, a gas inlet valve 11 and a grounding electrode 12.
(1) Connection relation and function of each component
The rock crushing device adopts a detachable structure.
The high-voltage electrode and the grounding electrode are fixedly arranged on the elliptical bunching cover, the upper surface and the lower surface of the elliptical bunching cover are respectively provided with an opening, the two openings and the focus are positioned on the same straight line, a fastening piece made of PVC material is installed, then the high-voltage electrode bar and the grounding electrode bar are respectively inserted into the fastening piece, and the wing-shaped screw is screwed to fix the electrode bar.
The output end of the pulse power supply is connected with the high-voltage electrode rod through a lead, the grounding electrode is connected with the ground through a lead, the center of the pulse power supply is provided with a gas hole channel, the outside of the pulse power supply is connected with a gas valve, the gas valve is connected with a gas storage tank, and the gas valve is opened to introduce bubbles during working. Therefore, a complete discharge loop of a pulse power supply device, namely a high-voltage electrode, bubble guide and a low-voltage electrode is formed, and shock waves generated during discharge are reflected by the bunching cover.
Further, the high-voltage electrode and the grounding electrode are arranged on an axis where one focus of the elliptical bunching cover is located, and the electrode and the elliptical spherical bunching cover are fixed by using a fastener and a wing-shaped screw. I.e. the axis in the vertical direction through the focal point. The center of the discharge is arranged on a focus of the elliptical bunching cover, and the two electrode rods are positioned on the axis where the focus is positioned. The discharge center refers to the area between the high voltage electrode rod and the ground electrode, and the gap distance between the high voltage electrode rod and the ground electrode is generally 5mm-15mm. Discharge breakdown occurs in this region, and is therefore called a discharge center.
The upper part and the lower part of the oval spherical bunching cover are respectively provided with a round hole so as to extend into the electrode and be additionally provided with an electrode fastener; drilling a small hole on an insulating acrylic material wrapped outside the electrode to be matched with a wing screw to fix the electrode; the fastening piece is made of insulating material PVC and is cylindrical, the lower part of the fastening piece is provided with a circular ring structure which is sleeved on a circular hole of the oval spherical bunching cover, the upper part of the fastening piece is provided with a threaded hole matched with the thumb screw, and the thumb screw is screwed to fix the electrode.
The discharge center is positioned at one focus of the oval spherical bunching cover, and the shock waves reflected by the reflecting cover are converged to the other focus according to the geometric properties of the oval. The shock wave is reflected by the elliptic spherical beam-focusing cover to be converged to another focus, the shock wave opposite to the direction of the direct wave can be effectively reflected, energy waste is avoided, the electric energy conversion efficiency is improved, and the rock crushing effect is improved.
In order to bear the impact force of underwater spark breakdown discharge under the stimulation of bubbles and reflect shock waves, the elliptical spherical bunching cover is made of special steel materials. Meanwhile, the outside of the electrode needs to be wrapped with an insulating material acrylic so as to prevent the surrounding air from generating gas breakdown and triggering spark discharge.
The grounding electrode is provided with an air inlet valve, and an air hole is arranged in the middle of the electrode rod. And gas is introduced through the air hole, so that underwater spark breakdown discharge under the stimulation of bubbles is realized. The high-voltage electrode and the grounding electrode are designed to be of a coaxial structure, and the grounding electrode is inserted into a rock body during use to fix the whole device for discharging and breaking rock. The coaxial structure satisfies the requirement that the bubble lets in with actual engineering, makes things convenient for among telluric electricity field inserts the drilling.
The gas storage tank is provided with a flow valve, so that the amount of introduced gas can be monitored in real time. The gas used can be air, argon, helium and the like, and the gas can be selected from various kinds.
(2) Principle of operation
The working principle of the rock crushing device is as follows: when the device is used, firstly, holes need to be drilled on a rock mass, then the whole device is placed into the drilled holes and fixed through the grounding electrode, water is filled in the drilled holes, the air valve is opened, and air bubbles are introduced between the high-voltage electrode and the grounding electrode to form a discharge path of a pulse power supply, namely the high-voltage electrode, air bubble guide and the grounding electrode. During discharging, bubbles are firstly broken down, then the occurrence of stream flow breakdown in liquid is triggered, a plasma channel is formed between electrodes, then complete underwater spark discharging is formed, high-energy shock waves are released, shock wave energy is enhanced through the reflection of a beam-bunching cover, and finally the shock waves act on rocks to achieve a good rock-breaking effect.
The device has simple structure, convenient disassembly and convenient carrying. Compared with an underwater free breakdown discharge structure, the device can work under a longer discharge gap, and stable spark discharge is realized; compared with a structure of leading breakdown discharge by a metal wire, the metal wire does not need to be replaced after the discharge is finished every time, no metal pollutant is generated, and the discharge frequency can be improved.
In the embodiment, through the synergistic effect of the pulse power supply, the high-low voltage electrodes, the elliptical spherical bunching cover and the air bubbles to be ventilated, the air bubbles are punctured to form the plasma channel, so that underwater spark discharge is induced to generate shock waves, and the actual engineering rock crushing requirement is met. The bubbles are adopted to guide underwater spark breakdown discharge, so that the generated high-energy shock wave has high strength, good shock wave characteristics and high electric energy conversion rate; the ellipse is used as a bunching cover to reflect the shock wave, so that the intensity of the shock wave is further enhanced, the energy utilization efficiency is improved, and the rock crushing effect is improved; the whole rock crushing process is performed inside the device, the rock crushing cost is low, the whole process is efficient and clean, and safety and no pollution are realized.
Example 2:
the embodiment 2 of the disclosure provides a bunching impact wave rock breaking method based on bubble guide underwater discharge.
A bunching shock wave rock breaking method based on bubble-guided underwater discharge utilizes the bunching shock wave rock breaking device based on bubble-guided underwater discharge of the first aspect of the disclosure;
placing the rock crushing device into a rock body drilled hole filled with water and fixing the rock crushing device through a grounding electrode;
introducing bubbles between the high-voltage electrode and the grounding electrode to form a discharge path of the pulse power supply, the high-voltage electrode, the bubble guide and the grounding electrode;
the pulse power supply device generates high-voltage pulse to be applied to the electrodes, bubbles are firstly broken down, flow injection breakdown in liquid is further triggered, a plasma channel is formed between the electrodes, underwater spark discharge is completed, and high-energy shock waves are released;
the beam bunching cover is used for reflecting and enhancing the energy of the shock wave, so that the shock wave acts on the rock.
As a specific implementation, the parameters of each element during the experimental discharge are set as follows: the length of the high-voltage electrode bar is 1.0m, the diameter of the high-voltage electrode bar is 10mm, and the diameter of the high-voltage electrode bar is 20mm after the high-voltage electrode bar is wrapped by an acrylic material; the length of the grounding electrode is 0.3m; the pulse voltage is 15-35kV; the discharge gap is 5mm-15mm; the long axis of the ellipsoidal bunching cover is 160mm, and the short axis is 80mm.
The working principle of the method is as follows: firstly, drilling a hole in a rock mass, then putting the whole device into the drilled hole and fixing the device through a grounding electrode, filling water into the drilled hole, opening an air valve, and introducing air bubbles between a high-voltage electrode and the grounding electrode to form a discharge path of a pulse power supply, the high-voltage electrode, air bubble guide and the grounding electrode. During discharging, bubbles are firstly broken down, then the occurrence of stream flow breakdown in liquid is triggered, a plasma channel is formed between electrodes, then complete underwater spark discharging is formed, high-energy shock waves are released, shock wave energy is enhanced through the reflection of a beam-bunching cover, and finally the shock waves act on rocks to achieve a good rock-breaking effect.
In the embodiment, when bubbles are introduced between the high-voltage electrode and the grounding electrode, compared with water, the breakdown strength of the air is lower, and the field intensity inside the bubbles is redistributed and enhanced due to the fact that the dielectric constants of the water and the air are not matched, so that gas breakdown occurs inside the bubbles firstly, then the occurrence of stream flow breakdown in liquid is triggered, a plasma channel is formed between the electrodes, and finally complete underwater spark discharge is formed. In whole discharge process, can produce high-energy shock wave high-efficiently, utilize oval spherical spotlight cover to reflect the shock wave this moment, can increase the amplitude and the intensity of shock wave, reach good garrulous rock effect.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. The utility model provides a bunch shock wave detritus device based on bubble guide discharges under water which characterized in that: the method comprises the following steps: the device comprises a pulse power supply device, a shock wave generating device, an air storage tank and a gas flow valve;
the shock wave generating apparatus includes: the high-voltage electrode, the grounding electrode and the elliptical spherical bunching cover;
the pulse power supply device provides pulse voltage for underwater discharge, the shock wave generating device is used for generating and releasing high-energy shock waves, and the air storage tank provides guide bubbles for the underwater discharge;
wherein, high voltage electrode and telluric electricity field are fixed to be set up on oval spherical spotlight cover, and pulse power supply's output links to each other with high voltage electrode, and telluric electricity field center is equipped with the inlet port, through gas flow valve and gas holder connection, and the during operation is opened gas flow valve and is let in the bubble.
2. The apparatus of claim 1, wherein the apparatus comprises: and the guided bubbles are introduced between the high-voltage electrode and the grounding electrode, flow in the liquid is triggered to be punctured after the bubbles are punctured, a plasma channel is formed between the electrodes, the underwater spark discharge is completed, and the high-energy shock waves are released.
3. The apparatus of claim 1, wherein the apparatus comprises: the detritus device adopts detachable structure, and high-voltage electrode and telluric electrode design are coaxial structure, insert telluric electrode in the rock body during the use, fixed whole detritus device.
4. The apparatus of claim 1, wherein the apparatus comprises: the high-voltage electrode and the grounding electrode are arranged on the axis of one focus of the elliptical bunching cover, and the electrode and the elliptical spherical bunching cover are fixed by using a fastener and a wing-shaped screw.
5. The apparatus of claim 4, wherein the apparatus comprises: insulating acrylic material is wrapped outside the electrode to prevent surrounding air from generating gas breakdown and triggering spark discharge; the acrylic material is provided with a round hole for screwing a wing-shaped screw to fix the electrode.
6. The apparatus of claim 4, wherein the apparatus comprises: the upper part and the lower part of the oval spherical bunching cover are respectively provided with a round hole for extending an electrode and installing an electrode fastener; the electrode fastener is made of insulating material PVC and is cylindrical, a circular ring structure is arranged at the lower part of the electrode fastener and is used for being sleeved on a circular hole of the elliptical spherical bunching cover, a threaded hole matched with a wing-shaped screw is arranged at the upper part of the electrode fastener, and the electrode can be fixed by screwing the wing-shaped screw.
7. The apparatus of claim 1, wherein the apparatus comprises: the discharge center of the device is positioned on one focus of the elliptical spherical bunching cover, shock waves are reflected by the elliptical spherical bunching cover and are converged on the other focus, the direction of the shock waves is changed, and the amplitude of the shock waves is increased.
8. The apparatus of claim 7, wherein the apparatus comprises: the oval spherical bunching cover is made of special steel materials.
9. The apparatus of claim 1, wherein the apparatus comprises: the gas storage tank is provided with a flow valve, so that the quantity of introduced gas can be monitored in real time, and the used gas is one or more of air, argon and helium.
10. A bunching shock wave rock crushing method based on bubble guide underwater discharge is characterized in that:
using the bubble guided underwater discharge based bunching shock wave rock breaking device of claims 1-9;
placing the rock crushing device into a rock body drilled hole filled with water and fixing the rock crushing device through a grounding electrode;
introducing bubbles between the high-voltage electrode and the grounding electrode to form a discharge path of the pulse power supply, the high-voltage electrode, the guide bubbles and the grounding electrode;
the pulse power supply device generates high-voltage pulse to be applied to the electrodes, bubbles are firstly broken down, flow injection breakdown in liquid is further triggered, a plasma channel is formed between the electrodes, underwater spark discharge is completed, and high-energy shock waves are released;
the beam bunching cover is used for reflecting and enhancing the energy of the shock wave, so that the shock wave acts on the rock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211465785.0A CN115930690A (en) | 2022-11-22 | 2022-11-22 | Bunching shock wave rock crushing device and method based on bubble-guided underwater discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211465785.0A CN115930690A (en) | 2022-11-22 | 2022-11-22 | Bunching shock wave rock crushing device and method based on bubble-guided underwater discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115930690A true CN115930690A (en) | 2023-04-07 |
Family
ID=86699953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211465785.0A Pending CN115930690A (en) | 2022-11-22 | 2022-11-22 | Bunching shock wave rock crushing device and method based on bubble-guided underwater discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115930690A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998007520A1 (en) * | 1996-08-21 | 1998-02-26 | Komatsu Ltd. | Electric discharge shock breakdown method and apparatus therefor |
| US20140305877A1 (en) * | 2013-04-11 | 2014-10-16 | Sanuwave, Inc. | Apparatuses and methods for generating shock waves for use in the energy industry |
| CN204485980U (en) * | 2014-12-10 | 2015-07-22 | 新特能源股份有限公司 | A kind of polycrystalline silicon crushing device |
| RU2613678C1 (en) * | 2016-03-25 | 2017-03-21 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Electrical discharge method for rock destruction |
| CN114509240A (en) * | 2022-01-28 | 2022-05-17 | 哈尔滨工程大学 | High-energy vortex ring bubble excitation device based on underwater instantaneous discharge and use method |
| CN115247984A (en) * | 2022-07-15 | 2022-10-28 | 太原理工大学 | Electrode structure capable of focusing shock wave energy and electrode device composed of same |
-
2022
- 2022-11-22 CN CN202211465785.0A patent/CN115930690A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998007520A1 (en) * | 1996-08-21 | 1998-02-26 | Komatsu Ltd. | Electric discharge shock breakdown method and apparatus therefor |
| US20140305877A1 (en) * | 2013-04-11 | 2014-10-16 | Sanuwave, Inc. | Apparatuses and methods for generating shock waves for use in the energy industry |
| CN204485980U (en) * | 2014-12-10 | 2015-07-22 | 新特能源股份有限公司 | A kind of polycrystalline silicon crushing device |
| RU2613678C1 (en) * | 2016-03-25 | 2017-03-21 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Electrical discharge method for rock destruction |
| CN114509240A (en) * | 2022-01-28 | 2022-05-17 | 哈尔滨工程大学 | High-energy vortex ring bubble excitation device based on underwater instantaneous discharge and use method |
| CN115247984A (en) * | 2022-07-15 | 2022-10-28 | 太原理工大学 | Electrode structure capable of focusing shock wave energy and electrode device composed of same |
Non-Patent Citations (1)
| Title |
|---|
| GUO X, SUN Y, LIU C-L, JING L, ZHANG Y-T, WANG X-L, & TIMOSHKIN I: "The guiding effect of artificially injected gas bubble on the underwater pulsed spark discharge and its electrical and acoustic parameters after breakdown", PHYSICS OF PLASMAS, vol. 29, no. 11, 7 November 2022 (2022-11-07), pages 1 - 21 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018058401A1 (en) | Pipeline scale removing and rock stratum fracturing device based on electrohydraulic pulse shockwaves | |
| US11179732B2 (en) | Electrodischarge apparatus | |
| CA2581701A1 (en) | Pulsed electric rock drilling, fracturing, and crushing methods and apparatus | |
| CN108222839A (en) | Multi-electrode electric crushing drill bit and electric crushing experimental device | |
| CN112412425B (en) | Electric pulse prefabricated crack directional hydraulic fracturing integrated method | |
| RU179832U1 (en) | HYDRAULIC NOZZLE FOR JET CEMENT | |
| JPH1057832A (en) | Method and device for discharge impact fracture | |
| CN111456801B (en) | Method for permeability-increasing coal seam in drilling holes in top plate and bottom plate of coal seam | |
| CN112483000A (en) | Horizontal-hole type high-power shock wave generating device and method | |
| CN115930690A (en) | Bunching shock wave rock crushing device and method based on bubble-guided underwater discharge | |
| CN105319138B (en) | For carrying out the device and method of rock fracture experiment | |
| CN212018093U (en) | Underwater high-voltage pulse discharging crushing device | |
| CN114658348B (en) | Shock wave rock breaking device, system and method, solid-liquid composite energetic material and preparation method | |
| CN85203131U (en) | Shape (in bore, two sides) charged cutter for engineering explosion | |
| SK50622009A3 (en) | Method for material dislodging and device there of | |
| CN108273631A (en) | It is a kind of to use foam solution as dielectric plasma detritus method and system | |
| JP2001193381A (en) | Plasma breaker and breaking method using it | |
| CN111101868B (en) | Jet flow PDC drill bit | |
| CN212109768U (en) | Disposable sleeve | |
| CN113756803A (en) | Rock breaking method based on impact-resistant water-filled bag | |
| BG95725A (en) | METHOD OF MAKING A PILOT AND TOOL FOR ITS IMPLEMENTATION | |
| CN109877975B (en) | Double-pulse plasma rock breaking generation device | |
| RU228389U1 (en) | Device for producing volumetric explosion in a borehole during the production of bored injection piles | |
| CN112709595B (en) | Directional shock wave generating device and soft coal seam gas extraction method based on same | |
| AU2013204846B2 (en) | Pulsed Electric Rock Drilling, Fracturing, and Crushing Methods and Apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |