CN109647598A - A kind of high-pressure pulse device for being crushed in solid water - Google Patents
A kind of high-pressure pulse device for being crushed in solid water Download PDFInfo
- Publication number
- CN109647598A CN109647598A CN201910049328.5A CN201910049328A CN109647598A CN 109647598 A CN109647598 A CN 109647598A CN 201910049328 A CN201910049328 A CN 201910049328A CN 109647598 A CN109647598 A CN 109647598A
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- electrode
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- crushed
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- storage capacitor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C2019/183—Crushing by discharge of high electrical energy
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
A kind of high-pressure pulse device for being crushed in solid water, it includes transformer, the thyristor being set on primary circuit, and controller, grounding electrode, storage capacitor, controller is used to control the on-off of thyristor, the secondary loop output end of transformer respectively with first electrode, discharge electrode connection, the other end of the grounding electrode is the first ground terminal, storage capacitor both ends parallel connection constant-current charging power, one end of storage capacitor is connect with the second ground terminal, the other end is connect with one end of high pressure magnetic switch, the other end of high pressure magnetic switch is connect with second electrode, gap is formed between first electrode and second electrode.When being crushed the purpose of the present invention is to solve existing machinery, the problem of a large amount of dust and metallic pollution that are easy to produce, and propose a set of for carrying out broken technical solution to target solids object by high pressure in liquid.
Description
Technical field
Broken, technical field of pulse power that the present invention relates to solids refers specifically to a kind of high pressure for being crushed in solid water
Pulser.
Background technique
With the development of industry, many industrial circles require to carry out solids broken apart, as polysilicon it is broken,
The separation of jewel mineral, the explosion of rock etc..Traditional breaking method mostly uses mechanical attrition crushing, including manually breaks
Broken and device automatic pulverizing, this is also current most popular method.However in view of equipment and solid material etc.
It influences, the reduction of cost, the promotion of solid crushing efficiency have very big difficulty, while this mechanical crumbling method exists sternly
Weight drawback, specific as follows:
1) breaking tool and solid contact generate metallic pollution.2) a large amount of dust pollution ring can be generated during Mechanical Crushing
Border, and enterprise employee health can be endangered.Meanwhile for pulsed solidstate crushing device, due to directly obtaining from power grid with one
The highpowerpulse of standing wave shape is impossible, so needing that first energy accumulates gradually by energy storage system, is then led to
It crosses control system and energy abrupt release is generated into instantaneous high power pulse.Tesla pulse transformer can be achieved with this function.
When Tesla pulse transformer works, charge power supply first charges to energy-storage capacitor, when charging is complete can be by high-power controllable
Pipe realizes that the conducting of circuit is raised voltage by the transformer moment of a rated transformation ratio when circuit transient switching, and by same
Axis transmission line carries out temporal compression, and last moment is output to load.
Although Tesla transformer can be used as break down solids because of the characteristics of small in size, mobility strong and repeatable frequency electric discharge
Device, but to reach high efficiency break down solids purpose, Tesla transformer has to generate sufficiently high voltage and Xiang Gu
A large amount of energy is injected in body material, can be only achieved the broken purpose of expansion.Since Tesla transformer own vol is smaller and stores up
The energy storage density of energy capacitor can not change, the energy that this energy that Tesla transformer certainly will be caused to store is restricted and stores
Less, traditional Tesla transformer can be crushed solid to realize by the continuous discharge of certain repetition rate, but due to every
Secondary discharge energy injection is not high, so crushing efficiency is very low and degree of crushing is unobvious.If arbitrarily increasing Tesla pulse transforming
The storage capacitor volume of device promotes storage volume, this has eventually resulted in the increase of Tesla volume of transformer, and problem of temperature rise can not
It solves, seriously affects the service life of device.
Summary of the invention
When being crushed the purpose of the present invention is to solve existing machinery, a large amount of dust that is easy to produce and metallic pollution are asked
Topic, and proposition is a set of for carrying out broken technical solution to target solids object by high pressure in liquid, meanwhile, the present invention is also
It can overcome and will lead to that Tesla volume of transformer increases, temperature rise is difficult to control to influence device to make when using Tesla transformer
The technical issues of with the service life.
A kind of high-pressure pulse device for being crushed in solid water, it includes transformer, is set to primary circuit
On thyristor and controller, grounding electrode, storage capacitor, controller is used to control the on-off of thyristor, time of transformer
Grade loop output is connect with first electrode, discharge electrode respectively, and the other end of the grounding electrode is the first ground terminal, energy storage
Capacitor both ends parallel connection constant-current charging power, one end of storage capacitor connect with the second ground terminal, the other end and high pressure magnetic switch
One end connection, the other end of high pressure magnetic switch are connect with second electrode, and gap is formed between first electrode and second electrode.
Including the groove body for filling liquid matter and solids to be broken, discharge electrode, grounding electrode are used for and solid to be broken
Object contact is crushed with treating break down solids object.
Above-mentioned transformer is Tesla transformer.
The secondary loop output end of above-mentioned transformer by coaxial transmission line connect with resistance after again respectively with first electrode,
Discharge electrode connection.
The primary circuit of above-mentioned transformer is connected with the rectifying circuit.
When operation, using following steps:
1) solid is placed in groove body, water is added in groove body, water level is more than solids level.
2) discharge electrode, grounding electrode are fixed on by solid, and pass to the nanosecond high-tension pulse of Tesla transformer generation
Punching discharges to solids to be broken in water, it is made to form conductive channel in solids to be broken；
3) nanosecond high-voltage pulse is by two-electrode gas gap breakdown, and is saturated high pressure magnetic switch reversely, keeps energy storage electric
Energy in container pours into discharge channel, and the Cathode plasma explosion process that electric discharge is formed in aggravation conductive channel is crushed to be broken
Solids.
In step 2), energy-storage capacitor is charged by constant-current charging power first, is charged to voltage rating；Pass through control
Device processed makes rectification circuit to Tesla transformer primary side capacitor charging, after charging, is controlled thyristor to touch by controller
Generate electricity condenser discharge, and Tesla transformer secondary generates high-voltage pulse, and is transmitted to discharge electrode by coaxial transmission line, and
Discharge in water.
In high-voltage pulse by coaxial transmission line and resistance in this discharge loop of discharge in water, high-voltage pulse is by first
The air gap breakdown that electrode and second electrode are formed, high pressure magnetic switch forward is saturated at this time, can not be put to energy-storage capacitor
Electricity, high-voltage pulse forms discharge channel in solids, and after discharge channel is formed, energy-storage capacitor makes high pressure magnetic switch reversely satisfy
With the electric discharge of, energy-storage capacitor, after the completion of electric discharge, power supply to energy-storage capacitor and Tesla primary side capacitor charging, is charged to volume respectively
It discharges, repeats the above process again after constant voltage.
Above-mentioned grounding electrode is opposite with discharge electrode, and distance is 50-100mm between grounding electrode and discharge electrode.
The electrode end of above-mentioned discharge electrode is tip.
By adopting the above technical scheme, following technical effect can be brought:
Solid crushing device provided by the invention increases high pressure magnetic switch and energy storage electricity using Tesla transformer as core
Container, the injection of main energy are completed by the energy-storage capacitor of the low-voltage, large capacity that connect with magnetic switch, and device combines
Tesla transformer type clock is easy to repetition operation and the high advantage of low-voltage energy-storage capacitor energy storage density, overcomes Tesla
Transformer the shortcomings that temperature increases under the conditions of high-power repetition and the low disadvantage of high voltage capacitor energy storage density, pass through high pressure
Magnetic switch, two electrode the air gaps and resistance realize mutually isolated between Tesla transformer and energy-storage capacitor, entire height
It is broken to greatly improve solid for achievable densification, the Gao Zhongying, high power stable operation for pressing pulse discharge in water crushing device
Broken efficiency.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the structure principle chart of this invention.
Specific embodiment
A kind of high-pressure pulse device for being crushed in solid water as shown in Figure 1, it includes transformer 1, is set to transformation
Thyristor and controller 11, grounding electrode 9, storage capacitor 2 on device primary circuit, controller 11 is for controlling thyristor
On-off, the secondary loop output end of transformer 1 connect with first electrode 12, discharge electrode 7 respectively, the grounding electrode 9
The other end is the first ground terminal 13,2 both ends parallel connection constant-current charging power 5 of storage capacitor, one end of storage capacitor 2 and the second ground connection
One end of 14 connection of end, the other end and high pressure magnetic switch 3 connects, and the other end of high pressure magnetic switch 3 is connect with second electrode 4, the
Gap is formed between one electrode 12 and second electrode 4.
Including the groove body 10 for filling liquid matter and solids to be broken 8, discharge electrode 7, grounding electrode 9 be used for it is to be broken
The contact of solids 8 is crushed with treating break down solids object 8.
The transformer 1 is Tesla transformer.
The secondary loop output end of the transformer 1 connect by coaxial transmission line 14 with resistance 6 after again respectively with first
Electrode 12, discharge electrode 7 connect.
The primary circuit of the transformer 1 is connect with rectification circuit 15.
The electrode end of the discharge electrode 7 is tip.
Wherein, two thyristors in Tesla transformer 1 are external in controller 11 respectively and control thyristor on-off, and
Tesla transformer 1 is connect with one end of resistance 6, and the other end of resistance 6 connects discharge electrode 7, and grounding electrode 9 is connected with the earth
And be placed at experimental solids material surface about 10mm, experimental solids material is placed in the groove body 10 being filled with water, while being grounded electricity
Pole 9 and high-voltage discharging electrode 7 are opposite, are separated by positive 50-100mm.
Discharge electrode end is tip, the electric field strength at electrode and solid contact can be improved, it is ensured that field strength is sufficiently high, energy
Discharge channel is formed inside solids 8 to be broken.2 both ends parallel connection constant-current charging power 5 of energy-storage capacitor, wherein one end and big
Ground is connected, and the other end is connected with high pressure magnetic switch 3, and the other end of high pressure magnetic switch 3 connects second electrode 4, and first electrode 12 connects
Connecting resistance 6.After the gas gap conducting and plasma channel that two electrodes are formed are formed, energy-storage capacitor 2 injects larger at this time
Energy is implemented experimental solids material 8 broken.
Its working principle is that when energy-storage capacitor 2 is stored with big energy after constant-current charging power charging complete, this
When by controller 11 make the Tesla transformer 1 after overcharge enter working condition, into after working condition Tesla become
Solids 8 to be broken in the gas gap and sink 10 of first electrode 12 and the formation of second electrode 4 is put in the meeting of depressor 1 simultaneously
Electricity, the gas gap that two electrodes are formed can breakdown conducting, make high pressure magnetic switch 3 is positive to be saturated, not just due to high pressure magnetic switch 3
To when being saturated, impedance is larger, there is isolation, makes Tesla transformer 1 that can't discharge energy-storage capacitor 2, final high-voltage pulse
Electric discharge plasma conductive channel can be formed in experimental solids.After two-electrode gas gap 4 is connected, interelectrode impedance subtracts
Small, energy-storage capacitor 2 is saturated high pressure magnetic switch 3 reversely, and energy-storage capacitor 2 begins through the electric discharge of high pressure magnetic switch 3, and at this time the
The gas gap constant conduction that one electrode 12 and second electrode 4 are formed, while the avoidable energy-storage capacitor 2 of presence of resistance 6 is right
Tesla pulse transformer 1 discharges, and finally realizes a large amount of energy injections into solids 8 to be broken broken.
When specifically used, using following steps:
1) solid is placed in sink, water level be more than solids level about half.
2) high-voltage discharging electrode positive and negative anodes are fixed on by solid, and pass to the nanosecond high pressure of Tesla transformer generation
Solid discharge in pulse pair water, makes it form conductive channel in solids.
3) nanosecond high-voltage pulse is by two-electrode gas gap breakdown, and is saturated high pressure magnetic switch reversely, keeps energy storage electric
Energy in container pours into discharge channel, the Cathode plasma explosion process that electric discharge is formed in aggravation conductive channel, break down solids object.
In step 2), 10 μ F energy-storage capacitors are charged by constant-current charging power first, are charged to voltage rating
20kV.Make transformer rectification circuit to 4 μ F capacitor charging of Tesla transformer primary side by control system, charging voltage is -5kV.
After charging, by Triggering Control System, the electric discharge of 4 μ F capacitors is triggered, Tesla transformer secondary generates the high pressure of 200kV
Pulse, and it is transmitted to high-voltage discharging electrode by coaxial transmission line, and discharge in water.
It is high in 200kV high-voltage pulse by transmission line and resistance in this discharge loop of discharge in water in step 3)
The gas gap that pressure pulse forms two electrodes punctures, and high pressure magnetic switch forward is saturated at this time, can not put to energy-storage capacitor
Electricity, magnetic switch positive saturation when, impedance is larger, and high-voltage pulse forms discharge channel in solids.After discharge channel is formed, storage
Energy capacitor is saturated high pressure magnetic switch reversely, energy-storage capacitor electric discharge.Because solids forms discharge channel, impedance it is opposite with
The concatenated resistance of transmission line is small, more energy-in pathways.After the completion of discharging, power supply is respectively to energy-storage capacitor and Tesla
Primary side capacitor charging is discharged again after being charged to voltage rating, is repeated the above process.
Claims (10)
1. a kind of high-pressure pulse device for being crushed in solid water, it is characterised in that: it includes transformer (1), is set to change
Thyristor and controller (11), grounding electrode (9), storage capacitor (2) on depressor primary circuit, controller (11) are used for
The on-off of thyristor is controlled, the secondary loop output end of transformer (1) is connect with first electrode (12), discharge electrode (7) respectively,
The other end of the grounding electrode (9) is the first ground terminal (13), storage capacitor (2) both ends parallel connection constant-current charging power (5), storage
Can capacitor (2) one end connect with the second ground terminal (14), the connection of one end of the other end and high pressure magnetic switch (3), high pressure magnetic opens
The other end for closing (3) is connect with second electrode (4), forms gas gap between first electrode (12) and second electrode (4).
2. the high-pressure pulse device according to claim 1 for being crushed in solid water, it is characterised in that: including for filling
The groove body (10) of liquid matter and solids to be broken (8), discharge electrode (7), grounding electrode (9) are used for and solids to be broken (8)
Contact is crushed with treating break down solids object (8).
3. the high-pressure pulse device according to claim 1 or 2 for being crushed in solid water, it is characterised in that: the change
Depressor (1) is Tesla transformer.
4. the high-pressure pulse device according to claim 3 for being crushed in solid water, it is characterised in that: the transformer
(1) secondary loop output end by coaxial transmission line (14) connect with resistance (6) after again respectively with first electrode (12), discharge
Electrode (7) connection.
5. the high-pressure pulse device according to claim 3 for being crushed in solid water, it is characterised in that: the transformer
(1) primary circuit is connect with rectification circuit (15).
6. the high-pressure pulse device according to claim 3 for being crushed in solid water, which is characterized in that when operation, adopt
With following steps:
1) solid is placed in groove body (10), water is added in groove body (10), water level is more than solids level；
2) discharge electrode (7), grounding electrode (9) are fixed on by solid, and the nanosecond for passing to the generation of Tesla transformer is high
Solids (8) electric discharge to be broken in pulse pair water is pressed, it is made to form conductive channel in solids to be broken (8)；
3) nanosecond high-voltage pulse is by two-electrode gas gap breakdown, and is saturated high pressure magnetic switch (3) reversely, makes storage capacitor
Energy in device (2) pours into discharge channel, and the Cathode plasma explosion process that electric discharge is formed in aggravation conductive channel is crushed to be broken
Solids (8).
7. the high-pressure pulse device according to claim 6 for being crushed in solid water, it is characterised in that: in step 2
In, energy-storage capacitor is charged by constant-current charging power (5) first, is charged to voltage rating；Made by controller (11) whole
Current circuit (15) is to Tesla transformer primary side capacitor charging, after charging, is controlled thyristor to touch by controller (11)
Generate electricity condenser discharge, and Tesla transformer secondary generates high-voltage pulse, and is transmitted to discharge electrode by coaxial transmission line (14)
(7), it and in water discharges.
8. the high-pressure pulse device according to claim 6 or 7 for being crushed in solid water, it is characterised in that: in high pressure
Pulse is by coaxial transmission line (14) and resistance (6) in this discharge loop of discharge in water, and high-voltage pulse is by first electrode
(12) gas gap formed with second electrode (4) punctures, at this time the positive saturation of high pressure magnetic switch (3), can not be to energy storage electricity
Container (2) electric discharge, high-voltage pulse forms discharge channel in solids, and after discharge channel is formed, energy-storage capacitor (2) makes high pressure magnetic
It switchs (3) to be reversely saturated, energy-storage capacitor (2) electric discharge, after the completion of electric discharge, power supply respectively becomes energy-storage capacitor (2) and Tesla
Depressor (1) primary side capacitor charging, discharges again after being charged to voltage rating, repeats the above process.
9. the high-pressure pulse device according to claim 8 for being crushed in solid water, it is characterised in that: the ground connection electricity
Relatively, and distance is 50-100mm between grounding electrode (9) and discharge electrode (7) for pole (9) and discharge electrode (7).
10. the high-pressure pulse device according to claim 1 or 2 for being crushed in solid water, it is characterised in that: described to put
The electrode end of electrode (7) is tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910049328.5A CN109647598A (en) | 2019-01-18 | 2019-01-18 | A kind of high-pressure pulse device for being crushed in solid water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910049328.5A CN109647598A (en) | 2019-01-18 | 2019-01-18 | A kind of high-pressure pulse device for being crushed in solid water |
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| CN109647598A true CN109647598A (en) | 2019-04-19 |
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| CN201910049328.5A Pending CN109647598A (en) | 2019-01-18 | 2019-01-18 | A kind of high-pressure pulse device for being crushed in solid water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067575A (en) * | 2019-05-10 | 2019-07-30 | 三峡大学 | The adjustable gas pulse crushing device of face formula and construction method for the filling lining cutting of tunnel liquid |
| CN110193416A (en) * | 2019-07-05 | 2019-09-03 | 东北大学 | It is a kind of to strengthen the high electric field pulse preprocess method that chalcopyrite is broken and sorts |
| CN113304848A (en) * | 2021-07-08 | 2021-08-27 | 江苏鑫华半导体材料科技有限公司 | Silicon block crushing device and using method thereof, and silicon block crushing method and application method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160191A (en) * | 1995-10-30 | 1997-09-24 | 株式会社水山特装 | Rock fragmentation system using gold schmidt method |
| WO1998007959A1 (en) * | 1996-08-22 | 1998-02-26 | Komatsu Ltd. | Method and device for crushing material by discharging pulsed electric energy and method and device for generating high-voltage pulse |
| CN103248264A (en) * | 2013-04-27 | 2013-08-14 | 西安交通大学 | Trigger for triggering Trigatron gas switch |
| CN103551231A (en) * | 2013-11-18 | 2014-02-05 | 中南大学 | Pulse breaking mechanism, as well as seabed cobalt-rich crust breaking system and method |
| CN209597383U (en) * | 2019-01-18 | 2019-11-08 | 三峡大学 | A kind of high-pressure pulse device for being crushed in solid water |
-
2019
- 2019-01-18 CN CN201910049328.5A patent/CN109647598A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160191A (en) * | 1995-10-30 | 1997-09-24 | 株式会社水山特装 | Rock fragmentation system using gold schmidt method |
| WO1998007959A1 (en) * | 1996-08-22 | 1998-02-26 | Komatsu Ltd. | Method and device for crushing material by discharging pulsed electric energy and method and device for generating high-voltage pulse |
| CN103248264A (en) * | 2013-04-27 | 2013-08-14 | 西安交通大学 | Trigger for triggering Trigatron gas switch |
| CN103551231A (en) * | 2013-11-18 | 2014-02-05 | 中南大学 | Pulse breaking mechanism, as well as seabed cobalt-rich crust breaking system and method |
| CN209597383U (en) * | 2019-01-18 | 2019-11-08 | 三峡大学 | A kind of high-pressure pulse device for being crushed in solid water |
Non-Patent Citations (1)
| Title |
|---|
| 黄国良: "高压脉冲放电碎岩的研究", 中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑, no. 7, pages 34 - 40 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067575A (en) * | 2019-05-10 | 2019-07-30 | 三峡大学 | The adjustable gas pulse crushing device of face formula and construction method for the filling lining cutting of tunnel liquid |
| CN110067575B (en) * | 2019-05-10 | 2020-07-14 | 三峡大学 | Surface type adjustable air pulse crushing device for tunnel fluid filling lining and construction method |
| CN110193416A (en) * | 2019-07-05 | 2019-09-03 | 东北大学 | It is a kind of to strengthen the high electric field pulse preprocess method that chalcopyrite is broken and sorts |
| CN113304848A (en) * | 2021-07-08 | 2021-08-27 | 江苏鑫华半导体材料科技有限公司 | Silicon block crushing device and using method thereof, and silicon block crushing method and application method thereof |
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