CN110721835A - Electric cut-off type high-voltage pulse water jet generating device - Google Patents
Electric cut-off type high-voltage pulse water jet generating device Download PDFInfo
- Publication number
- CN110721835A CN110721835A CN201910954015.4A CN201910954015A CN110721835A CN 110721835 A CN110721835 A CN 110721835A CN 201910954015 A CN201910954015 A CN 201910954015A CN 110721835 A CN110721835 A CN 110721835A
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- water
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- water jet
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- discharge electrode
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 125
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 230000015556 catabolic process Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000010891 electric arc Methods 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/053—Arrangements for supplying power, e.g. charging power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/053—Arrangements for supplying power, e.g. charging power
- B05B5/0533—Electrodes specially adapted therefor; Arrangements of electrodes
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses an electric cutoff type high-voltage pulse water jet flow generating device which comprises a water tank, a filter, a water supply pump, a supercharger, a nozzle, an insulating sleeve, a discharge electrode, an electric control switch, a capacitor, a rectifier, a transformer, an alternating current power supply and the like. The water tank, the filter, the water supply pump, the supercharger and the nozzle are connected through pipelines, and high-pressure continuous water jet can be generated; the insulating sleeve is arranged at the outlet of the nozzle, and the discharge electrode is arranged in the insulating sleeve and is connected with the electric control switch, the capacitor, the rectifier, the transformer and the alternating current power supply through wires; the device has the advantages of scientific principle, simple structure, safety, high efficiency, energy conservation, environmental protection and good application prospect.
Description
Technical Field
The invention relates to the field of injection devices, in particular to an electric cutoff type high-voltage pulse water jet generating device.
Background
The application of high-pressure water jet is very wide in the engineering fields of petroleum, mining industry, machinery, cleaning and the like. In petroleum engineering, the high-pressure water jet can assist a drill bit to break rock efficiently; in the mining industry, hydraulic mining and coal seam slotting reinforced gas extraction can be carried out by using high-pressure water jet; in the mechanical industry, high-pressure water jet can be used for high-precision cold cutting; in the cleaning operation, the impact of the high-pressure water jet can effectively clean dirt. Compared with the traditional mechanical method, the high-pressure water jet has the advantages of good impact effect, strong crushing capability, cold processing and the like, and jet parts such as a nozzle and the like have small abrasion; the high-pressure water jet can be used for carrying out impact crushing operation independently and can also be matched with a mechanical crushing tool to assist the mechanical crushing tool to efficiently crush rocks; the high-pressure water jet has good adaptability to hard rock crushing, hard material processing and cleaning of dirt with strong cementation. Thus, high-pressure water jets are increasingly used in various engineering fields.
The traditional process of impacting the solid surface by the continuous high-pressure water jet can be divided into two stages, namely a water hammer pressure stage and a stagnation pressure stage. In the water hammer pressure stage, the water medium is compressed to form shock waves, so that the water hammer effect can be generated, and the shock pressure reaches tens times of the jet pressure; but this phase is short in duration, typically tens of nanoseconds. After the water hammer pressure is finished, the impact action enters a stagnation pressure stage, and the impact pressure is closer to the jet pressure. The water hammer pressure stage is very critical in the impact crushing process of hard materials, however, the traditional continuous water jet impact can only generate the water hammer pressure impact action for a short time, and the energy of the water jet is not fully utilized. Compared with continuous high-pressure water jet, the pulse water jet generates intermittent jet beams to realize intermittent impact on the solid material, so that the pressure effect of the water hammer is repeatedly utilized to generate stronger impact crushing effect.
Currently, there are two ways of generating high-pressure pulsed water jets, one being of the mechanical-cutoff type and the other being of the self-oscillating type. The mechanical block type high-pressure pulse water jet periodically blocks continuous water jet through mechanisms such as a mechanical block and the like, so that a pulse jet beam with certain frequency is generated. Because a mechanical cut-off device needs to be arranged at the outlet of the nozzle, the mechanical cut-off device generally uses a rotating component, and is complex and poor in reliability; moreover, the direct contact type interception of the jet flow beam has negative influence on the form and the convergence of the jet flow beam. The self-excited oscillation type high-pressure pulse water jet reasonably designs the internal section line type of the nozzle based on the fluid dynamics principle, so that the fluid generates an oscillation effect when flowing through the inside of the nozzle, and the oscillation effect period cuts off the jet fluid in the nozzle, thereby forming a pulse jet beam. Because no additional mechanical cut-off device is needed, the self-oscillation type high-pressure pulse water jet generating device is simple and convenient to use. However, the oscillation action inside the self-oscillation nozzle is unstable, the jet flow pulse characteristic is poor, and the linear type inside the self-oscillation nozzle usually has an abrupt cross section, so that large fluid energy loss is caused, and the impact crushing is not facilitated.
Therefore, in order to overcome the defects of the existing high-pressure pulse water jet generating device, the innovative high-pressure pulse water jet generating device is provided, and is necessary for simplifying the generating device, improving the impact crushing capability of the high-pressure pulse water jet and promoting popularization and application.
Disclosure of Invention
In view of the above, the present invention provides an electrical cutoff type high-voltage pulse water jet generator, which forms a high-temperature arc breakdown jet beam by utilizing the instantaneous discharge of a discharge electrode, thereby cutting off a continuous jet to generate a pulse jet beam.
The invention provides an electric cutoff type high-voltage pulse water jet generating device, which comprises the following steps:
an electric cut-off type high-pressure pulse water jet generating device structurally comprises a low-pressure water supply pipeline, a water tank, a filter, a water supply pump, a supercharger, a high-pressure water supply pipeline, a nozzle, an insulating sleeve, a high-pressure pulse jet beam, a discharge electrode, an electric wire, an electric control switch, a capacitor, a rectifier, a transformer and an alternating current power supply, wherein the inlet of the water tank is connected with a water source through the low-pressure water supply pipeline, the outlet of the water tank is connected with the inlet of the filter through the low-pressure water supply pipeline, the outlet of the filter is connected with the inlet of the water supply pump through the low-pressure water supply pipeline, the outlet of the water supply pump is connected with the inlet of the supercharger through the low-pressure water supply pipeline, after all the parts are connected, a continuous high-pressure water jet beam can be generated, after each component is connected, the discharge electrode is controlled to discharge periodically through the electric control switch to form an arc breakdown jet beam, and the discharge electrode generates an arc breakdown high-voltage continuous water jet beam at the connection frequency of the electric control switch, so that the jet beam is periodically cut off to form a high-voltage pulse water jet.
Further, the nozzle is a conical convergent nozzle.
Furthermore, an upper discharge electrode and a lower discharge electrode are arranged on the insulating sleeve at the outlet of the nozzle.
Further, the power supply circuit comprises an electric control switch, a capacitor, a rectifier, a transformer and an alternating current power supply.
Further, the connection mode of the discharge electrode and the power supply circuit is as follows: the discharge electrode is connected with the electric control switch in series through a wire, the discharge electrode and the electric control switch are connected with the capacitor in parallel, the capacitor is connected with the rectifier and the high-voltage end of the transformer in series through a wire, and the low-voltage end of the transformer is connected with the alternating current power supply.
Further, the method for forming the high-pressure continuous jet water beam comprises the following steps: and starting a water supply pump and a supercharger, wherein the water supply pump pumps water from the water tank and sends the water to the supercharger, the supercharger pressurizes the water to form high-pressure water, and the high-pressure water is conveyed to the nozzle through a high-pressure pipeline to form a high-pressure continuous water jet beam.
The technical scheme provided by the invention has the beneficial effects that: (1) the electric arc generated by the electrode discharge breaks down the jet beam, so as to generate a high-voltage pulse jet beam, and the pulse frequency can be controlled by the discharge frequency of the discharge electrode; (2) a mechanical rotating part is not used, so that the reliability is high, the device is simple, and the volume is small; (3) the nozzle uses the conventional water jet nozzle, so that the energy loss of fluid is avoided, and the efficiency is high.
Drawings
FIG. 1 is a schematic diagram of an electrical block type high-voltage pulse water jet generator according to the present invention;
fig. 2 is a partial schematic view of the nozzle position of an electric block type high-pressure pulse water jet generating device.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the structure of the present invention includes a low-pressure water supply line 1, a water tank 2, a filter 3, a water supply pump 4, a booster 5, a high-pressure water supply line 6, a nozzle 7, an insulating sleeve 8, a high-pressure pulse jet bundle 9, a discharge electrode 10, an electric wire 11, an electric control switch 12, a capacitor 13, a rectifier 14, a transformer 15, and an alternating current power supply 16.
Firstly, a water pipeline and a power supply circuit are connected, an inlet of a water tank 2 is connected with a water source through a low-pressure water supply pipeline 1, an outlet of the water tank 2 is connected with an inlet of a filter 3 through the low-pressure water supply pipeline 1, an outlet of the filter 3 is connected with an inlet of a water supply pump 4 through the low-pressure water supply pipeline 1, an outlet of the water supply pump 4 is connected with an inlet of a supercharger 5 through the low-pressure water supply pipeline 1, an outlet of the supercharger 5 is connected with an inlet of a nozzle 7 through a high-pressure water supply pipeline 6, an insulating sleeve 8 is installed at an outlet section of the nozzle 7, a discharge electrode 10 is installed on the insulating sleeve 8, the discharge electrode 10 is connected with an electric control switch 12 in series through an electric wire 11, the discharge electrode 10 and the electric control switch 12.
The water supply pump 3 and the booster 5 are started, the water supply pump 3 pumps water from the water tank 2 to the booster 5, the booster 5 pressurizes water, and high-pressure water is conveyed to the nozzle 7 through the high-pressure pipeline 6 to form a high-speed continuous water jet beam.
And (3) switching on a power supply circuit, setting the switching-on frequency of the electric control switch 12, and periodically discharging and breaking the jet beam by the discharge electrode 10 at the switching-on frequency of the electric control switch 12 to form a high-voltage pulse water jet beam 9.
The nozzle is a conical convergent nozzle.
And an upper discharge electrode and a lower discharge electrode are arranged on the insulating sleeve at the outlet of the nozzle.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. An electric cut-off type high-pressure pulse water jet generating device is characterized in that the structure of the device comprises a low-pressure water supply pipeline, a water tank, a filter, a water supply pump, a supercharger, a high-pressure water supply pipeline, a nozzle, an insulating sleeve, a high-pressure pulse jet bundle, a discharge electrode, an electric wire, an electric control switch, a capacitor, a rectifier, a transformer and an alternating current power supply, wherein an inlet of the water tank is connected with a water source through the low-pressure water supply pipeline, an outlet of the water tank is connected with an inlet of the filter through the low-pressure water supply pipeline, an outlet of the filter is connected with an inlet of the water supply pump through the low-pressure water supply pipeline, an outlet of the water supply pump is connected with an inlet of the supercharger through the high-pressure water supply pipeline, after all the components are connected, the discharge electrode is connected with the power supply circuit, after all components are connected, the discharge electrode is controlled to discharge periodically through the electric control switch to form an electric arc breakdown jet beam, and the discharge electrode generates an electric arc breakdown high-voltage continuous water jet beam at the connection frequency of the electric control switch, so that the jet beam is periodically cut off to form a high-voltage pulse water jet.
2. An electrical block type high pressure pulse water jet generating apparatus as claimed in claim 1, wherein said nozzle is a conical convergent nozzle.
3. The electric block type high-voltage pulse water jet generator as claimed in claim 1, wherein said insulating sleeve at the outlet of said nozzle has upper and lower discharge electrodes.
4. The electrical block high voltage pulse water jet generator of claim 1, wherein said power supply circuit comprises an electrically controlled switch, a capacitor, a rectifier, a transformer, an ac power source.
5. The electric cutoff type high-voltage pulse water jet generating device according to claim 1, wherein the discharge electrode and the power supply circuit are connected in a manner that: the discharge electrode is connected with the electric control switch in series through a wire, the discharge electrode and the electric control switch are connected with the capacitor in parallel, the capacitor is connected with the rectifier and the high-voltage end of the transformer in series through a wire, and the low-voltage end of the transformer is connected with the alternating current power supply.
6. The electrical block type high-pressure pulse water jet generating device according to claim 1, wherein the method for forming the high-pressure continuous water jet beam is as follows: and starting a water supply pump and a supercharger, wherein the water supply pump pumps water from the water tank and sends the water to the supercharger, the supercharger pressurizes the water to form high-pressure water, and the high-pressure water is conveyed to the nozzle through a high-pressure pipeline to form a high-pressure continuous water jet beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954015.4A CN110721835B (en) | 2019-10-09 | 2019-10-09 | Electric cut-off type high-voltage pulse water jet generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954015.4A CN110721835B (en) | 2019-10-09 | 2019-10-09 | Electric cut-off type high-voltage pulse water jet generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110721835A true CN110721835A (en) | 2020-01-24 |
| CN110721835B CN110721835B (en) | 2020-09-29 |
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| CN201910954015.4A Expired - Fee Related CN110721835B (en) | 2019-10-09 | 2019-10-09 | Electric cut-off type high-voltage pulse water jet generating device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012192336A (en) * | 2011-03-16 | 2012-10-11 | Taco Co Ltd | Oil application method, and oil applicator using the same |
| CN204014247U (en) * | 2014-09-02 | 2014-12-10 | 厦门大学 | A kind of acceleration jet flow generating apparatus |
| CN204772804U (en) * | 2015-07-17 | 2015-11-18 | 杭州佳龙光学玻璃有限公司 | High -pressure water jet cutting equipment |
| EP3047913A1 (en) * | 2015-01-21 | 2016-07-27 | VLN Advanced Technologies Inc. | Electrodischarge apparatus for generating low-frequency powerful pulsed and cavitating waterjets |
| CN106583318A (en) * | 2017-02-03 | 2017-04-26 | 中国矿业大学(北京) | Controllable electro-hydraulic pulse jet flow washing unit |
-
2019
- 2019-10-09 CN CN201910954015.4A patent/CN110721835B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012192336A (en) * | 2011-03-16 | 2012-10-11 | Taco Co Ltd | Oil application method, and oil applicator using the same |
| CN204014247U (en) * | 2014-09-02 | 2014-12-10 | 厦门大学 | A kind of acceleration jet flow generating apparatus |
| EP3047913A1 (en) * | 2015-01-21 | 2016-07-27 | VLN Advanced Technologies Inc. | Electrodischarge apparatus for generating low-frequency powerful pulsed and cavitating waterjets |
| CN204772804U (en) * | 2015-07-17 | 2015-11-18 | 杭州佳龙光学玻璃有限公司 | High -pressure water jet cutting equipment |
| CN106583318A (en) * | 2017-02-03 | 2017-04-26 | 中国矿业大学(北京) | Controllable electro-hydraulic pulse jet flow washing unit |
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| Publication number | Publication date |
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| CN110721835B (en) | 2020-09-29 |
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Granted publication date: 20200929 |