CN113301703A - Middle section structure plasma generator - Google Patents
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- CN113301703A CN113301703A CN202110675426.7A CN202110675426A CN113301703A CN 113301703 A CN113301703 A CN 113301703A CN 202110675426 A CN202110675426 A CN 202110675426A CN 113301703 A CN113301703 A CN 113301703A
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- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/48—Generating plasma using an arc
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- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
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Abstract
The invention discloses a plasma generator with a middle section structure, which comprises a front electrode, a middle section, a rear electrode, a main air inlet cyclone ring and an auxiliary air inlet cyclone ring, wherein one end of the front electrode is connected with one end of the auxiliary air inlet cyclone ring, the other end of the auxiliary air inlet cyclone ring is connected with one end of the middle section, the other end of the middle section is connected with one end of the main air inlet cyclone ring, and the other end of the main air inlet cyclone ring is connected with one end of the rear electrode. The invention adopts a unique middle section structure design, the middle section and the front electrode do not need insulation design, the jump from the middle section of the arc root to the front electrode is realized through the exquisite design of the middle section structure and the distribution process of pneumatic organization, main air inlet and auxiliary air inlet airflow, the structure is simple compared with the multistage middle section, and large voltage and large power can be stably output without increasing a large-current arc jump device.
Description
Technical Field
The invention relates to a plasma generator, in particular to a plasma generator with a middle section structure, and belongs to the field of plasmas.
Background
The thermal plasma is more and more paid attention as an alternative technical route for hazardous waste treatment, and the characteristic advantage of high temperature and high energy density is prominent. However, the development report and the application of the high-power plasma generator with megawatt level and above do not appear in China. The main development difficulties are: the arc current of the high-power plasma generator often reaches 600A or even more than 1000A, and the ablation concentration of the electrode is increased; the arc voltage of the megawatt plasma generator exceeds more than 1500V, and the arc stability and the difficulty of arc root motion control are increased.
The traditional high-power plasma generator adopts a multi-stage middle section structure design, for example, the plasma generator above US4543470 SKF2 megawatt adopts the multi-stage middle section structure design, the middle section and the middle section are electrically insulated with the main electrode, the length of a single middle section can reach 200-400mm, and the highest arc voltage can reach 3600V. The CN201520622783.7 plasma generator developed by shanghai okang plasma technology ltd adopts a multi-stage middle section structure to boost the arc voltage, a single middle section electrode is about 30mm, and the middle sections are electrically insulated from the main electrode. Patent CN201810723106.2 uses an insulator as part of the middle section structure. The plasma generator has the common characteristic that arc voltage is promoted through a plurality of middle section structures, the middle sections and the main electrodes are mutually insulated, and after the plasma generator is successfully ignited, the inter-electrode arc jumping is realized by a large-current arc switching device. The design of insulation between electrodes and the high-current arc switching device not only increases the design difficulty of the plasma generator, but also limits the application of the plasma generator.
As can be seen from the prior art, the general ablation of the electrode of the DC plasma generator is mainly thermal ablation and oxidation, mainly because the electrode is subjected to a local ultrahigh current density, and the electrode material is greatly evaporated. In order to reduce electrode ablation, the conventional high-power plasma generator generally adopts a small-current and large-voltage process design, and the operating power of the plasma generator is increased by increasing the arc voltage. Plasma generator arc voltage is currently increased mainly by increasing the arc length: and an intermediate insertion section is added between the cathode and the anode to increase the arc length of the electric arc, or the arc length is increased by large air quantity. Most of the structures of the middle insertion sections of the existing plasma generators are multi-stage insertion sections, insulation designs are adopted between the insertion sections and the cathodes and the anodes, the structures are complex, the application in a high-temperature environment in a furnace is difficult to use, and a high-current arc switching device is needed to realize the jump between arc electrodes. And the more downstream the arc channel goes, the flow field structure of the arc channel changes, the turbulence degree is increased, the arc length is increased through the atmospheric flow, the arc instability phenomenon exists, and an external strong magnetic field is often needed to stabilize the arc, so that the process complexity is increased, and the engineering application difficulty is also increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a plasma generator with a middle section structure, which has a simple structure and can stably output large voltage and large power without increasing a large-current arc jumping device.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a plasma generator with a middle section structure is characterized in that: contain preceding electrode, interlude, rear electrode, main cyclone air ring and supplementary cyclone air ring of intaking, the one end of preceding electrode is connected with the one end of supplementary cyclone air ring of intaking, and the other end of supplementary cyclone air ring is connected with the one end of interlude, and the other end of interlude is connected with the one end of main cyclone air ring of intaking, and the other end of main cyclone air ring of intaking is connected with the one end of rear electrode.
Furthermore, a front electrode cooling mechanism is arranged on the outer side of the front electrode, the front electrode cooling mechanism comprises a front electrode water-cooling spacer bush, the front electrode water-cooling spacer bush is sleeved on the outer side of the front electrode, a gap with two closed ends is arranged between the front electrode water-cooling spacer bush and the front electrode to form a front electrode water-cooling flow channel, and a front electrode water inlet and a front electrode water return opening are formed in two ends of the front electrode water-cooling flow channel.
Furthermore, a front electrode water-cooling coil is arranged on the outer side of the front electrode water-cooling spacer bush, a groove matched with the front electrode water-cooling coil is formed in the outer side surface of the front electrode water-cooling spacer bush, and the front electrode water-cooling coil is sleeved in the groove in the outer side of the front electrode water-cooling spacer bush.
Furthermore, a rear electrode middle section cooling mechanism is arranged on the outer sides of the rear electrode and the middle section, the rear electrode middle section cooling mechanism comprises a rear electrode water inlet pipe, a rear electrode water inlet guide pipe, a middle section water gas guide pipe, a front electrode water gas guide pipe and a middle section water cooling spacer bush, one end of the rear electrode water inlet pipe is fixedly connected with the end part of the other end of the rear electrode, the rear electrode water inlet guide pipe is sleeved on the outer side of the rear electrode, a gap is reserved between the rear electrode water inlet guide pipe and the rear electrode to form a rear electrode water cooling channel, a plurality of rear electrode water inlet holes communicated with the inner cavity of the rear electrode water inlet pipe and one end of the rear electrode water cooling channel are formed in the side surface of one end of the rear electrode water inlet pipe, the middle section water gas guide pipe is sleeved on one end of the rear electrode and the outer side of the main gas inlet ring, a gap is reserved between the middle section water gas guide pipe and the rear electrode water inlet guide pipe and communicated with the other end of the rear electrode water cooling channel, the middle section water-cooling spacer bush is sleeved on the outer side of the middle section, a gap with two closed ends is reserved between the middle section water-cooling spacer bush and the middle section to form a middle section water-cooling flow channel, the front electrode water-air guide pipe is sleeved on the outer side of the middle section water-air guide pipe and the middle section water-cooling spacer bush, a gap is reserved between the front electrode water-air guide pipe and the middle section water-air guide pipe and between the front electrode water-air guide pipe and one end of the middle section water-cooling spacer bush to form a middle section flow guide channel, a water return hole communicated with the rear electrode water-cooling channel and the middle section flow guide channel is formed in the middle section water-air guide pipe, a water inlet hole communicated with the middle section flow guide channel and the middle section water-cooling flow channel is formed in one end side face of one end of the middle section water-cooling spacer bush, and a middle section water return pipe penetrating through the front electrode water-air guide pipe is arranged in the other end side face of the middle section water-cooling spacer bush.
Furthermore, a rear electrode water cooling coil is arranged on the outer side of the rear electrode water inlet guide pipe, and the rear electrode water cooling coil is sleeved on the outer side of the rear electrode water inlet guide pipe.
Furthermore, a circle of annular air inlet groove is formed in the position, corresponding to an air inlet of the main air inlet cyclone air ring, of the inner wall of the middle section water vapor guide pipe, a plurality of axial air inlet holes are formed in the middle section water vapor guide pipe in the axial direction of the middle section water vapor guide pipe, the plurality of axial air inlet holes are evenly distributed along the circumferential direction of the middle section water vapor guide pipe, one end of each axial air inlet hole is located on the left end face of the middle section water vapor guide pipe, the other end of each axial air inlet hole is communicated with the annular air inlet groove, and the axial air inlet holes and the water return holes are arranged in a staggered mode.
Furthermore, a gap is reserved between the front electrode aqueous vapor guide pipe and the intermediate section aqueous vapor guide pipe as well as the auxiliary air inlet cyclone air ring to form an auxiliary air inlet channel, an auxiliary air inlet hole is formed in the side surface of the front electrode aqueous vapor guide pipe and communicated with one end of the auxiliary air inlet channel, and the other end of the auxiliary air inlet channel extends to the outer side of the auxiliary air inlet cyclone air ring.
Further, the rear electrode is of a well-type structure.
Furthermore, the cyclone air inlets on the main air inlet cyclone ring and the auxiliary air inlet cyclone ring are arranged along the tangential direction of the circular inner wall of the cyclone ring, and a plurality of cyclone air inlets are distributed at equal intervals along the circumferential direction of the cyclone ring, and the distribution directions of the cyclone air inlets of the main air inlet cyclone ring and the auxiliary air inlet cyclone ring are the same.
Compared with the prior art, the invention has the following advantages and effects:
1. the invention adopts a unique middle section structure design, the middle section and the front electrode do not need insulation design, the jump from the middle section of the arc root to the front electrode is realized through the exquisite design of the middle section structure and the distribution process of pneumatic organization, main air inlet and auxiliary air inlet airflow, the structure is simple compared with the multistage middle section, and large voltage and large power can be stably output without increasing a large-current arc jump device;
2. the plasma generator adopts the design of the same water inlet flow channel between the rear electrode and the middle section and the independent water cooling design of the front electrode, namely the design of a double-inlet double-outlet or double-inlet single-outlet cooling mechanism is adopted, and the cross design of the water flow channel and the air inlet flow channel is skillfully utilized, so that the heat exchange efficiency of the electrode of the plasma generator is obviously improved, the space utilization rate of the plasma generator body is improved, and the weight of the plasma generator is greatly reduced;
3. according to the design of the main air inlet and auxiliary air inlet cyclone ring, the main air inlet cyclone ring is arranged between the rear electrode and the middle section, and when the process gas of the plasma generator is provided, the high-speed rotating air flow drives the arc root of the rear electrode to move rapidly and drives the arc root to jump to the front electrode from the middle section, so that the double-arc phenomenon is inhibited; the auxiliary cold air film is provided to improve the breakdown voltage of the middle section and prevent the electric arc from being re-broken down with the middle section; the high-speed rotating cold air film also plays a role in cooling the inner wall of the electrode, so that the heat efficiency of the generator is improved; meanwhile, the front electrode arc root is driven to move under the interaction with an electromagnetic field, so that the ablation rate of the front electrode is further reduced, and the service life of the electrode is prolonged.
Drawings
FIG. 1 is a schematic diagram of a mid-section plasma generator of the present invention.
Fig. 2 is a schematic view of the mid-section water gas conduit of the present invention.
Fig. 3 is a side view of the mid-section water gas conduit of the present invention.
Detailed Description
To elaborate on technical solutions adopted by the present invention to achieve predetermined technical objects, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only partial embodiments of the present invention, not all embodiments, and technical means or technical features in the embodiments of the present invention may be replaced without creative efforts, and the present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
As shown in fig. 1, the plasma generator with middle section structure of the present invention comprises a front electrode 1, a middle section 8, a rear electrode 12, a main air intake cyclone ring 9 and an auxiliary air intake cyclone ring 5, wherein one end of the front electrode 1 is connected to one end of the auxiliary air intake cyclone ring 5, the other end of the auxiliary air intake cyclone ring 5 is connected to one end of the middle section 8, the other end of the middle section 8 is connected to one end of the main air intake cyclone ring 9, and the other end of the main air intake cyclone ring 9 is connected to one end of the rear electrode 12. The front electrode 1, the back electrode 12 and the middle section 8 adopt copper or copper alloy. Cooled by deionized water, respectively, and the rear electrode 12, the middle section 8 and the front electrode 1 are arranged coaxially. The inner diameter of the rear electrode 12 is designed to be larger than the inner diameter of the front electrode 1 than the inner diameter of the middle section 8. Set up main cyclone ring 9 that admits air between the back electrode interlude, set up supplementary cyclone ring 5 that admits air between interlude and the front electrode, a plurality of cyclone ring designs improve plasma generator long arc operating stability, improve plasma generator thermal efficiency, increase interlude electric arc breakdown voltage, restrain the double arc and take place, improve plasma generator whole operation life.
The outer side of the front electrode 1 is provided with a front electrode cooling mechanism, the front electrode cooling mechanism comprises a front electrode water-cooling spacer bush 2, the front electrode water-cooling spacer bush 2 is sleeved on the outer side of the front electrode 1, a gap with two closed ends is arranged between the front electrode water-cooling spacer bush 2 and the front electrode 1 to form a front electrode water-cooling flow channel 25, a front electrode water inlet 24 and a front electrode water return port 26 are arranged at two ends of the front electrode water-cooling flow channel 25, and the front electrode water inlet 24 also penetrates through the front electrode water-gas conduit 4. The cooling water enters a front electrode water-cooling flow channel 25 through a water inlet hole 24 on the front electrode water-gas conduit 4, and after the front electrode is fully cooled, the cooling water enters a total return water pipe through a front electrode water return port 26 on the front electrode water-cooling spacer sleeve 2.
The outer side of the front electrode water-cooling spacer sleeve 2 is provided with a front electrode water-cooling coil 3, the outer side surface of the front electrode water-cooling spacer sleeve 2 is provided with a groove matched with the front electrode water-cooling coil 3, and the front electrode water-cooling coil 3 is sleeved in the groove on the outer side of the front electrode water-cooling spacer sleeve 2. The front electrode water-cooling coil 3 is separately water-cooled and wound clockwise or anticlockwise. The front electrode water-cooling coil 3 is powered by adopting an independent direct-current power supply, a magnetic field generated by the front electrode water-cooling coil 3 drives the arc root of the front electrode to rotate at a high speed, and the operation life of the front electrode is prolonged by combining process parameter control.
The rear electrode middle section cooling mechanism is arranged on the outer sides of the rear electrode 12 and the middle section 8, and comprises a rear electrode water inlet pipe 14, a rear electrode water inlet guide pipe 13, a middle section water vapor guide pipe 10, a front electrode water vapor guide pipe 4 and a middle section water cooling spacer bush 7, wherein one end of the rear electrode water inlet pipe 14 is fixedly connected with the end part of the other end of the rear electrode 12 through threads, the rear electrode water inlet guide pipe 13 is sleeved on the outer side of the rear electrode 12, a gap is reserved between the rear electrode water inlet guide pipe 13 and the rear electrode 12 to form a rear electrode water cooling channel 16, a plurality of rear electrode water inlet holes 15 communicated with the inner cavity of the rear electrode water inlet pipe 14 and one end of the rear electrode water cooling channel 16 are formed in the side face of one end of the rear electrode water inlet pipe 14, and the rear electrode water inlet holes 15 have a certain axial inclination angle and are distributed at equal intervals along the circumferential direction. A middle section water vapor conduit 10 is sleeved at one end of a rear electrode 12 and the outer side of a main air inlet cyclone ring 9, a gap is left between the middle section water vapor conduit 10 and a rear electrode water inlet conduit 13 and is communicated with the other end of a rear electrode water cooling channel 16, a middle section water cooling spacer 7 is sleeved at the outer side of a middle section 8, a gap with two closed ends is left between the middle section water cooling spacer 7 and the middle section 8 to form a middle section water cooling flow channel 20, a front electrode water vapor conduit 4 is sleeved at the outer sides of the middle section water vapor conduit 10 and the middle section water cooling spacer 7, a gap is left between the front electrode water vapor conduit 4 and one end of the middle section water cooling spacer 7 and the middle section water cooling channel 10 to form a middle section flow guide channel 27, a water return hole 18 communicated with the rear electrode water cooling channel 16 and the middle section flow guide channel 27 is arranged on the middle section water vapor conduit 10, and the water return hole 18 is arranged along the radial direction of the middle section water vapor conduit 10, the plurality of water return holes 18 are equally spaced along the circumference of the middle-stage moisture guide pipe 10. The side surface of one end of the middle section water-cooling spacer 7 is provided with a water inlet hole 19 which is communicated with the middle section diversion channel 27 and the middle section water-cooling flow channel 20, and the side surface of the other end of the middle section water-cooling spacer 7 is provided with a middle section water return pipe 6 which penetrates out of the front electrode water-gas conduit 4.
The cooling water passes through the rear electrode water inlet pipe 14 and enters the rear electrode water cooling channel 16 through the rear electrode water inlet hole 15, the water cooling channel 16 is an annular flow channel, the channel width is millimeter magnitude, and the cooling water passes through the rear electrode water cooling channel 16 at a high speed. After the rear electrode 12 is sufficiently cooled, the cooling water bypasses the inner wall of the rear electrode water inlet conduit 13 and enters the outer wall of the rear electrode water inlet conduit. The cooling water enters the intermediate section conducting flow passage 27 through the water return hole 18 of the intermediate section water vapor conduit 10. The cooling water enters the middle section water-cooling flow passage 20 through the water inlet hole 19 on the middle section water-cooling spacer 7. After the middle section 8 is fully cooled, cooling water enters the middle section water return pipe 6 through a water return hole on the middle section water-cooling spacer 7. The middle section water return pipe 6, the middle section water spacer 7 and the front electrode water-gas guide pipe are designed in a sealing way. The front electrode 1 adopts a single water inlet cooling mode, and the rear electrode 12 and the middle section 8 adopt a strand of water inlet mode. The backwater of the front electrode 1 and the backwater of the rear electrode 12 are converged into a backwater after passing through the backwater hole of the front electrode water spacer 2 and the backwater pipe 6 of the middle section respectively and then return to the water cooler, or the backwater of the rear electrode and the backwater of the front electrode are separately returned to the water cooler.
The outer side of the rear electrode water inlet guide pipe 13 is provided with a rear electrode water cooling coil 11, and the rear electrode water cooling coil 11 is sleeved on the outer side of the rear electrode water inlet guide pipe 13. The rear electrode water cooling coil 11 is independently cooled by water, the rear electrode water cooling coil 11 is wound clockwise or anticlockwise, and the rear electrode water cooling coil is supplied with power by an independent direct-current power supply. The rear electrode water-cooling coil 11 generates a magnetic field to drive the rear electrode arc root to rotate at a high speed, and the service life of the rear electrode is prolonged by combining process parameter control.
As shown in fig. 2 and fig. 3, a circle of annular air inlet groove is arranged on the inner wall of the middle section water vapor conduit 10 corresponding to the air inlet position of the main air inlet cyclone air ring 9, a plurality of axial air inlet holes 17 axially arranged along the middle section water vapor conduit are formed in the middle section water vapor conduit 10, and the plurality of axial air inlet holes 17 are uniformly distributed along the circumference of the middle section water vapor conduit 10, one end of each axial air inlet hole 17 is located on the left side end face of the middle section water vapor conduit 10, the other end of each axial air inlet hole 17 is communicated with the annular air inlet groove, and the axial air inlet holes 17 and the water return holes 18 are arranged in a staggered mode. A group of 2 or more than 2 axial air inlet holes 17 are arranged between two adjacent water return holes 18.
A gap is reserved between the front electrode water vapor guide pipe 4 and the middle section water vapor guide pipe 10 and the auxiliary air inlet cyclone air ring 5 to form an auxiliary air inlet flow passage 22, an auxiliary air inlet 21 is formed in the side face of the front electrode water vapor guide pipe 4 and is communicated with one end of the auxiliary air inlet flow passage 22, and the other end of the auxiliary air inlet flow passage 22 extends to the outer side of the auxiliary air inlet cyclone air ring 5.
The rear electrode 12 is of a well-shaped structure, the tail of the rear electrode is in threaded connection with the rear electrode water inlet pipe 14, current can be transmitted to the rear electrode 12 through the rear electrode water inlet pipe 14, or the current is transmitted to the rear electrode water inlet pipe 14 through the rear electrode, and the tail of the rear electrode 12 is designed to be a conical surface.
The cyclone air inlet holes on the main air inlet cyclone ring 9 and the auxiliary air inlet cyclone ring 5 are arranged along the tangential direction of the circular inner wall of the cyclone ring and a plurality of cyclone air inlet holes are distributed along the circumferential direction of the cyclone ring at equal intervals, and the distribution directions of the cyclone air inlet holes of the main air inlet cyclone ring and the auxiliary cyclone ring are the same. The main cyclone air inlet ring 9 provides process carrier gas for the plasma generator through a plurality of cyclone air inlet holes, and working gas nitrogen and air enter cavities of the rear electrode 12 and the middle section 8 through the air inlet holes of the cyclone air inlet ring 9, so that the arc roots are driven to move while the process gas of the plasma generator is provided, and the process gas is used as an insulating piece between the rear electrode and the middle section. The auxiliary air inlet cyclone ring 5 provides process carrier gas for the plasma generator through a plurality of air inlet holes of the cyclone, and working gas nitrogen and air enter the middle section 8 and the cavity of the front electrode 1 through the air inlet holes of the auxiliary air inlet cyclone ring 5, so that the process gas of the plasma generator is provided, and meanwhile, a cold air film is provided for the middle section 8 to improve the breakdown voltage of the middle section. The cold air film also plays a role in cooling the inner wall of the electrode, and the heat efficiency of the generator is improved. The auxiliary air inlet high-speed rotating airflow simultaneously drives the arc root of the front electrode to move, so that the ablation rate of the front electrode is further reduced, and the service life of the electrode is prolonged. And the auxiliary inlet cyclone ring 5 as a conductor connects the intermediate section 8 with the front electrode 1.
The invention adopts a unique middle section structure design, the middle section and the front electrode do not need insulation design, the jump from the middle section of the arc root to the front electrode is realized through the exquisite design of the middle section structure and the distribution process of pneumatic organization, main air inlet and auxiliary air inlet airflow, the structure is simple compared with the multistage middle section, and large voltage and large power can be stably output without increasing a large-current arc jump device; the plasma generator adopts the design of the same water inlet flow channel between the rear electrode and the middle section and the independent water cooling design of the front electrode, namely the design of a double-inlet double-outlet or double-inlet single-outlet cooling mechanism is adopted, and the cross design of the water flow channel and the air inlet flow channel is skillfully utilized, so that the heat exchange efficiency of the electrode of the plasma generator is obviously improved, the space utilization rate of the plasma generator body is improved, and the weight of the plasma generator is greatly reduced; according to the design of the main air inlet and auxiliary air inlet cyclone ring, the main air inlet cyclone ring is arranged between the rear electrode and the middle section, and when the process gas of the plasma generator is provided, the high-speed rotating air flow drives the arc root of the rear electrode to move rapidly and drives the arc root to jump to the front electrode from the middle section, so that the double-arc phenomenon is inhibited; the auxiliary cold air film is provided to improve the breakdown voltage of the middle section and prevent the electric arc from being re-broken down with the middle section; the high-speed rotating cold air film also plays a role in cooling the inner wall of the electrode, so that the heat efficiency of the generator is improved; meanwhile, the front electrode arc root is driven to move under the interaction with an electromagnetic field, so that the ablation rate of the front electrode is further reduced, and the service life of the electrode is prolonged.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A plasma generator with a middle section structure is characterized in that: contain preceding electrode, interlude, rear electrode, main cyclone air ring and supplementary cyclone air ring of intaking, the one end of preceding electrode is connected with the one end of supplementary cyclone air ring of intaking, and the other end of supplementary cyclone air ring is connected with the one end of interlude, and the other end of interlude is connected with the one end of main cyclone air ring of intaking, and the other end of main cyclone air ring of intaking is connected with the one end of rear electrode.
2. The intermediate section structure plasma generator according to claim 1, wherein: the front electrode cooling mechanism comprises a front electrode water-cooling spacer bush, the front electrode water-cooling spacer bush is sleeved on the outer side of the front electrode, a gap with two closed ends is formed between the front electrode water-cooling spacer bush and the front electrode to form a front electrode water-cooling flow channel, and a front electrode water inlet and a front electrode water return opening are formed in two ends of the front electrode water-cooling flow channel.
3. The intermediate section structure plasma generator according to claim 2, wherein: the outer side of the front electrode water-cooling spacer sleeve is provided with a front electrode water-cooling coil, the outer side surface of the front electrode water-cooling spacer sleeve is provided with a groove matched with the front electrode water-cooling coil, and the front electrode water-cooling coil is sleeved in the groove on the outer side of the front electrode water-cooling spacer sleeve.
4. The intermediate section structure plasma generator according to claim 1, wherein: the back electrode and the outside of middling section are provided with back electrode interlude cooling mechanism, back electrode interlude cooling mechanism contains the back electrode inlet tube, back electrode water inlet pipe, interlude aqueous vapor pipe, preceding electrode aqueous vapor pipe, interlude water-cooling spacer bush, the one end of back electrode inlet tube and the other end tip fixed connection of back electrode, back electrode water inlet pipe cover is established in the outside of back electrode and leave the clearance between back electrode water inlet pipe and the back electrode and constitute back electrode water-cooling channel, back electrode inlet tube one end side is opened has a plurality of intercommunication back electrode water inlet pipe inner chamber and the back electrode water-cooling channel one end back electrode inlet opening, interlude aqueous vapor pipe cover is established in the outside of back electrode one end and main air inlet cyclone ring, leave the clearance and communicate with the back electrode water-cooling channel other end between interlude water-cooling spacer bush cover establishes in the interlude outside and leave both ends confined between interlude water-cooling spacer bush and the interlude The gap constitutes interlude water-cooling runner, the outside at interlude aqueous vapor pipe and interlude water-cooling spacer sleeve is established to preceding electrode aqueous vapor pipe cover and leaves the gap and constitute interlude water conservancy diversion passageway between preceding electrode aqueous vapor pipe and interlude aqueous vapor pipe and the interlude water-cooling spacer sleeve one end, it has the return water hole of intercommunication back electrode water-cooling passageway and interlude water conservancy diversion passageway to open on the interlude aqueous vapor pipe, the intake opening that communicates interlude water conservancy diversion passageway and interlude water-cooling runner is opened to interlude water-cooling spacer sleeve one end side, interlude water-cooling spacer sleeve other end side is provided with the interlude return water pipe of wearing out preceding electrode aqueous vapor pipe.
5. The intermediate section structure plasma generator according to claim 4, wherein: and a rear electrode water-cooling coil is arranged on the outer side of the rear electrode water inlet guide pipe and sleeved on the outer side of the rear electrode water inlet guide pipe.
6. The intermediate section structure plasma generator according to claim 4, wherein: the air inlet position that corresponds main air inlet cyclone ring on the interlude aqueous vapor pipe inner wall is provided with round annular air inlet groove, and it has a plurality of axial inlet ports that set up along the interlude aqueous vapor pipe axial and a plurality of axial inlet port along the circumference evenly distributed of interlude aqueous vapor pipe to open in the interlude aqueous vapor pipe, and the one end of axial inlet port is located the left side terminal surface of interlude aqueous vapor pipe, and the other end and the annular air inlet groove intercommunication of axial inlet port, axial inlet port and return water hole set up by staggering each other.
7. The intermediate section structure plasma generator according to claim 4, wherein: a gap is reserved between the front electrode aqueous vapor guide pipe and the intermediate section aqueous vapor guide pipe as well as the auxiliary air inlet cyclone air ring to form an auxiliary air inlet flow channel, an auxiliary air inlet hole is formed in the side face of the front electrode aqueous vapor guide pipe and communicated with one end of the auxiliary air inlet flow channel, and the other end of the auxiliary air inlet flow channel extends to the outer side of the auxiliary air inlet cyclone air ring.
8. The intermediate section structure plasma generator according to claim 1, wherein: the rear electrode is of a well-type structure.
9. The intermediate section structure plasma generator according to claim 1, wherein: the cyclone air inlets on the main air inlet cyclone ring and the auxiliary air inlet cyclone ring are arranged along the tangential direction of the circular inner wall of the cyclone ring, and the plurality of cyclone air inlets are distributed at equal intervals along the circumferential direction of the cyclone ring, and the distribution directions of the cyclone air inlets of the main air inlet cyclone ring and the auxiliary cyclone ring are the same.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675426.7A CN113301703A (en) | 2021-06-18 | 2021-06-18 | Middle section structure plasma generator |
| PCT/CN2021/112227 WO2022262097A1 (en) | 2021-06-18 | 2021-08-12 | Plasma generator having intermediate section structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110675426.7A CN113301703A (en) | 2021-06-18 | 2021-06-18 | Middle section structure plasma generator |
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| CN113301703A true CN113301703A (en) | 2021-08-24 |
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| CN202110675426.7A Pending CN113301703A (en) | 2021-06-18 | 2021-06-18 | Middle section structure plasma generator |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2566580Y (en) * | 2002-08-21 | 2003-08-13 | 王忠义 | High power air plasma generator |
| CN1589088A (en) * | 2004-07-23 | 2005-03-02 | 大连海事大学 | Double anode heat plasma generator |
| CN201467557U (en) * | 2009-08-10 | 2010-05-12 | 北京光耀电力设备股份有限公司 | Novel plasma gun |
| CN101784154A (en) * | 2009-01-19 | 2010-07-21 | 烟台龙源电力技术股份有限公司 | Arc plasma generator and anode thereof |
| CN101790276A (en) * | 2009-07-16 | 2010-07-28 | 武汉天和技术股份有限公司 | Plasma generating device and method thereof |
| CN104936372A (en) * | 2015-06-29 | 2015-09-23 | 武汉天和技术股份有限公司 | Plasma generating device |
| CN105282952A (en) * | 2015-12-01 | 2016-01-27 | 成都金创立科技有限责任公司 | 500 KW magnetic stability non-transferred arc plasma generator |
| CN205142646U (en) * | 2015-08-12 | 2016-04-06 | 上海冈松等离子体科技开发有限公司 | High -power plasma torch of rotatory non - transfer long arc that admits air of multi -compartment festival distributing type |
| KR20180062446A (en) * | 2018-05-25 | 2018-06-08 | 한국수력원자력 주식회사 | Multi-Electrode Plasma Torch |
| CN108990249A (en) * | 2018-07-04 | 2018-12-11 | 加拿大艾浦莱斯有限公司 | A kind of plasmatorch device and the method for extending electrode life |
| CN109936904A (en) * | 2019-04-23 | 2019-06-25 | 武汉天和技术股份有限公司 | A kind of segmented plasma flare anode |
| CN110418487A (en) * | 2019-08-14 | 2019-11-05 | 成都金创立科技有限责任公司 | Long-life air plasma generator |
| CN112351570A (en) * | 2020-10-19 | 2021-02-09 | 江苏天楹等离子体科技有限公司 | Novel direct current plasma generator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087523A1 (en) * | 1982-02-22 | 1983-09-07 | ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme | Equipment for the heating of a gas fluid by means of an electric arc |
| DE10151080C1 (en) * | 2001-10-10 | 2002-12-05 | Xtreme Tech Gmbh | Device for producing extreme ultraviolet radiation used in the semiconductor industry comprises a discharge chamber surrounded by electrode housings through which an operating gas flows under a predetermined pressure |
| KR101041887B1 (en) * | 2010-05-14 | 2011-06-15 | 국방과학연구소 | Nontransferred plasma torch having constricted electrode |
| CN102933017B (en) * | 2012-11-05 | 2015-03-04 | 航天环境工程有限公司 | Built-in spark plug type alternating current plasma generator |
| CN108601195B (en) * | 2018-06-26 | 2020-05-12 | 加拿大艾浦莱斯有限公司 | Compact high-enthalpy high-power DC non-arc-rotating plasma torch |
-
2021
- 2021-06-18 CN CN202110675426.7A patent/CN113301703A/en active Pending
- 2021-08-12 WO PCT/CN2021/112227 patent/WO2022262097A1/en active Application Filing
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2566580Y (en) * | 2002-08-21 | 2003-08-13 | 王忠义 | High power air plasma generator |
| CN1589088A (en) * | 2004-07-23 | 2005-03-02 | 大连海事大学 | Double anode heat plasma generator |
| CN101784154A (en) * | 2009-01-19 | 2010-07-21 | 烟台龙源电力技术股份有限公司 | Arc plasma generator and anode thereof |
| CN101790276A (en) * | 2009-07-16 | 2010-07-28 | 武汉天和技术股份有限公司 | Plasma generating device and method thereof |
| CN201467557U (en) * | 2009-08-10 | 2010-05-12 | 北京光耀电力设备股份有限公司 | Novel plasma gun |
| CN104936372A (en) * | 2015-06-29 | 2015-09-23 | 武汉天和技术股份有限公司 | Plasma generating device |
| CN205142646U (en) * | 2015-08-12 | 2016-04-06 | 上海冈松等离子体科技开发有限公司 | High -power plasma torch of rotatory non - transfer long arc that admits air of multi -compartment festival distributing type |
| CN105282952A (en) * | 2015-12-01 | 2016-01-27 | 成都金创立科技有限责任公司 | 500 KW magnetic stability non-transferred arc plasma generator |
| KR20180062446A (en) * | 2018-05-25 | 2018-06-08 | 한국수력원자력 주식회사 | Multi-Electrode Plasma Torch |
| CN108990249A (en) * | 2018-07-04 | 2018-12-11 | 加拿大艾浦莱斯有限公司 | A kind of plasmatorch device and the method for extending electrode life |
| CN109936904A (en) * | 2019-04-23 | 2019-06-25 | 武汉天和技术股份有限公司 | A kind of segmented plasma flare anode |
| CN110418487A (en) * | 2019-08-14 | 2019-11-05 | 成都金创立科技有限责任公司 | Long-life air plasma generator |
| CN112351570A (en) * | 2020-10-19 | 2021-02-09 | 江苏天楹等离子体科技有限公司 | Novel direct current plasma generator |
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| WO2022262097A1 (en) | 2022-12-22 |
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