CN204377240U - A kind of anode is from cooling plasma source - Google Patents
A kind of anode is from cooling plasma source Download PDFInfo
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- CN204377240U CN204377240U CN201520080235.6U CN201520080235U CN204377240U CN 204377240 U CN204377240 U CN 204377240U CN 201520080235 U CN201520080235 U CN 201520080235U CN 204377240 U CN204377240 U CN 204377240U
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Abstract
The utility model discloses a kind of anode from cooling plasma source, comprise negative electrode, anode and shell, described negative electrode and anode are fixedly installed on the two ends of shell respectively, negative electrode, anode and housing combination form gas channel, described anode interior is provided with cooling duct, described anode is provided with the air inlet and gas outlet that communicate with cooling duct respectively, described cooling duct is communicated with gas channel by gas outlet, described gas channel is communicated with the arc channel of anode, during work, working gas successively through cooling duct and gas channel laggard enter arc channel.The utility model can solve following technical problem: one is to utilize working gas from cooling anodes; Two is to improve the temperature that working gas enters arc channel, thus improves the heat efficiency of plasma source; Three is can balance arc channel domestic and foreign work gas pressure, stable plasma jet.
Description
Technical field
The utility model relates to plasma producing apparatus, particularly relates to a kind of anode from cooling plasma source.
Background technology
Plasma source is the device producing plasma, and it is the arc energy utilized between negative electrode and positive electrode, is heated by working gas and makes it be ionized into plasma, then from passage injection, forms plasma jet.Plasma, owing to having the features such as high temperature, high-energy-density and atmosphere is controlled, has been widely used in the traditional field such as spraying, cutting, welding.
In prior art, plasma producing apparatus is primarily of electrode, electric arc and power supply composition, as China Patent No. " 201310131303.2 " discloses a kind of arc plasma device on July 10th, 2013, its technical scheme is that the spray gun of described plasma device is by anode, cathode taps, cathode cap, gun barrel and negative electrode pedestal composition, anode, gun barrel and negative electrode pedestal concentric are arranged, the rear end of gun barrel is connected on negative electrode pedestal and forms rifle body, anode is connected to the front end of gun barrel, the ring heart space of anode forms spout, the interior space of gun barrel forms air chamber, negative electrode pedestal forms the rear enclosed end of gun barrel, cathode taps is arranged in rifle body, cathode cap is fastened on cathode taps on negative electrode pedestal, space between cathode taps and anode forms discharge space, wherein, negative electrode pedestal designs for disc, the center of circle of disc there is via hole, via hole forms installing hole and the cooling chamber of cathode taps, cathode taps is cylindrical solid, the rear portion cylindrical solid of cathode taps has working water gasification hole or vaporization fin, the annular groove space between cathode cap and the cylindrical solid of cathode taps forms spray vapour ring, and the outlet of spray vapour ring is at air chamber.But in actual use, the power due to plasma source mostly is tens to hundreds of kilowatt, and anode, as energy carrier, if cool bad, will cause plasma source scaling loss to lose efficacy, and therefore antianode cooling is most important.But with the prior art that above-mentioned patent document is representative, the type of cooling of antianode normally processes water-cooling channel in plasma source indoor design, utilizes cooling water that additional energy on anode is taken away, reduce temperature of anode.But for some special application field, then requirement can not adopt supplement heat rejecter means, and therefore traditional type of cooling is no longer applicable.In addition during plasma source work, in arc channel, the temperature of working gas raises gradually, and then cause air pressure to raise, this will produce an opposition to the gas in gas channel, cause the air pressure fluctuation in gas channel, and the two differing pressure is larger, fluctuates more obvious, finally cause plasma source jet instability.
Utility model content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, and provide a kind of anode from cooling plasma source, the utility model can solve following technical problem: one is to utilize working gas from cooling anodes; Two is to improve the temperature that working gas enters arc channel, thus improves the heat efficiency of plasma source; Three is can balance arc channel domestic and foreign work gas pressure, stable plasma jet.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of anode is from cooling plasma source, it is characterized in that: comprise negative electrode, anode and shell, described negative electrode and anode are fixedly installed on the two ends of shell respectively, negative electrode, anode and housing combination form gas channel, described anode interior is provided with cooling duct, described anode is provided with the air inlet and gas outlet that communicate with cooling duct respectively, described cooling duct is communicated with gas channel by gas outlet, described gas channel is communicated with the arc channel of anode, during work, working gas successively through cooling duct and gas channel laggard enter arc channel.
Interlude is fixedly installed between described negative electrode and positive electrode, described gas channel is formed by negative electrode, anode, interlude and housing combination, described interlude inside offers transferred arc passage, and the two ends of described transferred arc passage communicate with the arc channel of gas channel and anode respectively.
Described interlude is provided with the bell communicated with transferred arc passage, the end of described negative electrode is positioned at bell, and has gap between the end of negative electrode and bell.
Be provided with insulator a between described negative electrode and shell, between described interlude and anode, be provided with insulator b.
The quantity of described interlude is at least two, and is provided with insulator b between adjacent two interludes.
Described shell is tubular, and offer inlet channel along in the barrel of cylindrical outer casing direction of axis line, inlet channel is communicated with air inlet.
Be provided with cooling structure in described cooling duct, described cooling structure is the cooling structure formed in anode interior by described cooling duct annular distribution.
Be provided with cooling structure in described cooling duct, described cooling structure is the cooling structure formed in anode interior by described cooling duct spiral.
Described cooling structure is the cooling structure that vertical spiral is formed in anode interior by described cooling duct.
Described cooling structure is the cooling structure that flat spin shape is distributed in that anode interior formed by described cooling duct.
Employing the utility model has the advantage of:
One, in the utility model, because the cooling duct on anode is communicated with arc channel by gas channel, therefore, it is possible to utilize working gas to absorb the heat of anode release as refrigerating gas, namely working gas can cooling anodes in advance before being ionized to plasma, both achieve the cooling certainly of working gas, turn improve the utilance of working gas.Otherwise working gas is before being ionized, and with anode generation heat exchange, the temperature of working gas rises, and namely improves the temperature of the working gas entering arc channel, and then improves the heat efficiency of plasma source.In addition, from entering anode, the temperature of working gas just raises gradually, and just can enter arc channel after working gas travels one segment distance, this just can balance the pressure of arc channel domestic and foreign work gas, reaches the object of stable plasma jet.
Two, in the utility model, the interlude arranged between negative electrode and positive electrode, can the length of elongating arc passage, can not only the pressure of balancing work gas further, can also improve the power of plasma source; Meanwhile, because interlude operationally also has higher temperature, therefore interlude can also keep the temperature of the working gas entering gas channel to decline.
Three, in the utility model, can ensure that working gas enters transferred arc passage equably, constantly by bell, make plasma jet more stable.
Four, in the utility model, the setting of insulator a and insulator b, not only increases the safety in utilization of plasma source, also improves the useful life of plasma source.
Five, in the utility model, the quantity of interlude is at least two, and is provided with insulator b between adjacent two interludes, and this structure can prevent plasma jet from stopping, and enhances the stability of plasma jet.
Six, in the utility model, shell is tubular, inlet channel is offered along in the barrel of cylindrical outer casing direction of axis line, this structure makes the inlet end of working gas be arranged on the rear end of whole plasma source, the jet that can not only prevent anode from spraying causes accidental damage to air inlet pipe, also helps handled easily.
Seven, in the utility model, in anode interior, multilayer cooling duct is set, cooling duct distributes or annular distribution in the shape of a spiral, is all the contact area in order to increase working gas and anode, thus improves the effect of additional energy on cooling anodes and absorption anode further.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 in the utility model;
Fig. 2 is the structural representation of embodiment 2 in the utility model;
Fig. 3 is the structural representation of polycyclic cooling duct anode in the utility model;
Fig. 4 is the structural representation of helical form cooling duct anode in the utility model;
Be labeled as in figure: 1, negative electrode, 2, anode, 3, interlude, 4, shell, 5, cooling duct, 6, arc channel, 7, gas channel, 8, transferred arc passage, 9, air inlet, 10, gas outlet, 11, insulator a, 12, insulator b, 13, inlet channel, 14, cooling structure.
Embodiment
Embodiment 1
A kind of anode is from cooling plasma source, comprise negative electrode 1, anode 2 and shell 4, described negative electrode 1 and anode 2 are fixedly installed on the two ends of shell 4 respectively, negative electrode 1, anode 2 and shell 4 are combined to form gas channel 7, described anode 2 inside is provided with cooling duct 5, described anode 2 is provided with the air inlet 9 and gas outlet 10 that communicate with cooling duct 5 respectively, described cooling duct 5 is communicated with gas channel 7 by gas outlet 10, described gas channel 7 is communicated with the arc channel 6 of anode 2, during work, working gas enters arc channel 6 successively behind cooling duct 5 and gas channel 7.
In the present embodiment, described cooling duct 5 is for being arranged on the cavity of anode 2 inside; Described cavity is communicated with gas outlet 10 with air inlet 9 respectively.
During plasma source work, working gas enters the cooling duct 5 of anode 2 inside by air inlet 9, and gas with anode 2, heat exchange occurs in cooling duct 5, takes away the heat of anode 2, and enter in the gas channel 7 of plasma source through gas outlet 10, finally enter in arc channel 6; Working gas, when the cooling duct 5 of anode 2 inside, absorbs the heat that anode 2 discharges, and temperature raises, and air pressure increases, and to make inside and outside arc channel 6 gas pressure difference reduce, airflow fluctuation reduces, can stable plasma jet; On anode 2, extra heat part is used to gas ionization simultaneously, improves the heat efficiency of plasma source.
Embodiment 2
A kind of anode is from cooling plasma source, comprise negative electrode 1, anode 2, interlude 3 and shell 4, described negative electrode 1 and anode 2 are fixedly installed on the two ends of shell 4 respectively, described interlude 3 is fixedly installed between negative electrode 1 and anode 2, negative electrode 1, anode 2, interlude 3 and shell 4 are combined to form gas channel 7, described interlude 3 inside offers transferred arc passage 8, described anode 2 inside is provided with cooling duct 5, described anode 2 is provided with the air inlet 9 and gas outlet 10 that communicate with cooling duct 5 respectively, described cooling duct 5 is communicated with gas channel 7 by gas outlet 10, the two ends of described transferred arc passage 8 communicate with the arc channel 6 of gas channel 7 and anode 2 respectively, during work, working gas enters transferred arc passage 8 successively behind cooling duct 5 and gas channel 7.
In the present embodiment, described interlude 3 is provided with the bell communicated with transferred arc passage 8, the end of described negative electrode 1 is positioned at bell, and has gap between the end of negative electrode 1 and bell.
Further, be provided with insulator a11 between described negative electrode 1 and shell 4, be provided with insulator b12 between described interlude 3 and anode 2, further, the quantity of described interlude 3 is at least two, and is provided with insulator b12 between adjacent two interludes 3.Wherein, insulator a11 is preferably made up of polytetrafluoroethylene, and insulator b12 is preferably made up of refractory ceramics.
In the present embodiment, described shell 4 is tubular, and the wall inner portion along cylindrical outer casing 4 direction of axis line offers inlet channel 13, and one end of inlet channel 13 is communicated with air inlet 9, and the other end is communicated with the pipe that enters of working gas.
During plasma source work, working gas enters the cooling duct 5 of anode 2 inside by air inlet 9, heat exchange is there is with anode 2 in gas in cooling duct 5, take away the heat of anode 2, and enter in the gas channel 7 of plasma source through gas outlet 10, then enter transferred arc passage 8, finally sprayed by the continuous passage of the electricity of anode 2; Working gas, when the cooling duct 5 of anode 2 inside, absorbs the heat that anode 2 discharges, and temperature raises, and air pressure increases, and to make inside and outside arc channel 6 gas pressure difference reduce, airflow fluctuation reduces, can stable plasma jet; On anode 2, extra heat part is used to gas ionization simultaneously, improves the heat efficiency of plasma source.
Embodiment 3
A kind of anode is from cooling plasma source, comprise negative electrode 1, anode 2, interlude 3 and shell 4, described negative electrode 1 and anode 2 are fixedly installed on the two ends of shell 4 respectively, described interlude 3 is fixedly installed between negative electrode 1 and anode 2, negative electrode 1, anode 2, interlude 3 and shell 4 are combined to form gas channel 7, described interlude 3 inside offers transferred arc passage 8, described anode 2 inside is provided with cooling duct 5, cooling structure 14 is provided with in described cooling duct 5, described cooling structure 14 is the cooling structures 14 formed in anode 2 inside by described cooling duct 5 annular distribution, described anode 2 is provided with the air inlet 9 and gas outlet 10 that communicate with cooling duct 5 respectively, described cooling duct 5 is communicated with gas channel 7 by gas outlet 10, the two ends of described transferred arc passage 8 communicate with the arc channel 6 of gas channel 7 and anode 2 respectively, during work, working gas enters transferred arc passage 8 successively behind cooling duct 5 and gas channel 7.
Embodiment 4
A kind of anode is from cooling plasma source, comprise negative electrode 1, anode 2, interlude 3 and shell 4, described negative electrode 1 and anode 2 are fixedly installed on the two ends of shell 4 respectively, described interlude 3 is fixedly installed between negative electrode 1 and anode 2, negative electrode 1, anode 2, interlude 3 and shell 4 are combined to form gas channel 7, described interlude 3 inside offers transferred arc passage 8, described anode 2 inside is provided with cooling duct 5, cooling structure 14 is provided with in described cooling duct 5, described cooling structure 14 is the cooling structures 14 formed in anode 2 inside by described cooling duct 5 spiral, described anode 2 is provided with the air inlet 9 and gas outlet 10 that communicate with cooling duct 5 respectively, described cooling duct 5 is communicated with gas channel 7 by gas outlet 10, the two ends of described transferred arc passage 8 communicate with the arc channel 6 of gas channel 7 and anode 2 respectively, during work, working gas enters transferred arc passage 8 successively behind cooling duct 5 and gas channel 7.
In order to improve cooling effect further, anode 2 inside can arrange multilayer cooling duct 5, increases the contact area of working gas and anode 2, thus further increases the effect of additional heat on cooling anodes 2 and absorption anode 2.The cooling duct 5 of anode 2 inside in the form of a ring or spiral, is all the contact area in order to increase working gas and anode 2, and further increases cooling anodes 2 and absorb the effect of additional heat on anode 2.
Embodiment 5
A kind of anode is from cooling plasma source, comprise negative electrode 1, anode 2, interlude 3 and shell 4, described negative electrode 1 and anode 2 are fixedly installed on the two ends of shell 4 respectively, described interlude 3 is fixedly installed between negative electrode 1 and anode 2, negative electrode 1, anode 2, interlude 3 and shell 4 are combined to form gas channel 7, described interlude 3 inside offers transferred arc passage 8, described anode 2 inside is provided with cooling duct 5, cooling structure 14 is provided with in described cooling duct 5, described cooling structure 14 be by described cooling duct 5 in vertical spiral at the cooling structure 14 that anode 2 inside is formed, described anode 2 is provided with the air inlet 9 and gas outlet 10 that communicate with cooling duct 5 respectively, described cooling duct 5 is communicated with gas channel 7 by gas outlet 10, the two ends of described transferred arc passage 8 communicate with the arc channel 6 of gas channel 7 and anode 2 respectively, during work, working gas enters transferred arc passage 8 successively behind cooling duct 5 and gas channel 7.
Embodiment 6
A kind of anode is from cooling plasma source, comprise negative electrode 1, anode 2, interlude 3 and shell 4, described negative electrode 1 and anode 2 are fixedly installed on the two ends of shell 4 respectively, described interlude 3 is fixedly installed between negative electrode 1 and anode 2, negative electrode 1, anode 2, interlude 3 and shell 4 are combined to form gas channel 7, described interlude 3 inside offers transferred arc passage 8, described anode 2 inside is provided with cooling duct 5, cooling structure 14 is provided with in described cooling duct 5, described cooling structure 14 is distributed in the inner cooling structure 14 formed of anode 2 by described cooling duct 5 in flat spin shape, described anode 2 is provided with the air inlet 9 and gas outlet 10 that communicate with cooling duct 5 respectively, described cooling duct 5 is communicated with gas channel 7 by gas outlet 10, the two ends of described transferred arc passage 8 communicate with the arc channel 6 of gas channel 7 and anode 2 respectively, during work, working gas enters transferred arc passage 8 successively behind cooling duct 5 and gas channel 7.
In the present embodiment, described anode 2 inside is provided with two-layer cooling duct 5; Wherein one deck cooling duct 5 is distributed in anode 2 inside in the form of a ring, and adjacent two ring-type cooling ducts 5 are communicated with; Another layer of cooling duct 5 is distributed in anode 2 inside in the shape of a spiral.In order to improve cooling effect further, anode 2 inside can arrange multilayer cooling duct 5, increases the contact area of working gas and anode 2, thus further increases the effect of additional heat on cooling anodes 2 and absorption anode 2.The cooling duct 5 of anode 2 inside in the form of a ring or spiral, is all the contact area in order to increase working gas and anode 2, and further increases cooling anodes 2 and absorb the effect of additional heat on anode 2.
Claims (10)
1. an anode is from cooling plasma source, it is characterized in that: comprise negative electrode (1), anode (2) and shell (4), described negative electrode (1) and anode (2) are fixedly installed on the two ends of shell (4) respectively, negative electrode (1), anode (2) and shell (4) are combined to form gas channel (7), described anode (2) inside is provided with cooling duct (5), described anode (2) is provided with the air inlet (9) and gas outlet (10) that communicate with cooling duct (5) respectively, described cooling duct (5) is communicated with gas channel (7) by gas outlet (10), described gas channel (7) is communicated with the arc channel (6) of anode (2), during work, working gas enters arc channel (6) successively behind cooling duct (5) and gas channel (7).
2. a kind of anode as claimed in claim 1 is from cooling plasma source, it is characterized in that: between described negative electrode (1) and anode (2), be fixedly installed interlude (3), described gas channel (7) is combined to form by negative electrode (1), anode (2), interlude (3) and shell (4), described interlude (3) inside offers transferred arc passage (8), and the two ends of described transferred arc passage (8) communicate with the arc channel (6) of gas channel (7) and anode (2) respectively.
3. a kind of anode as claimed in claim 2 is from cooling plasma source, it is characterized in that: described interlude (3) is provided with the bell communicated with transferred arc passage (8), the end of described negative electrode (1) is positioned at bell, and has gap between the end of negative electrode (1) and bell.
4. a kind of anode as claimed in claim 2 is from cooling plasma source, it is characterized in that: be provided with insulator a(11 between described negative electrode (1) and shell (4)), be provided with insulator b(12 between described interlude (3) and anode (2)).
5. a kind of anode as described in claim 2 or 4, from cooling plasma source, is characterized in that: the quantity of described interlude (3) is at least two, and is provided with insulator b(12 between adjacent two interludes (3)).
6. a kind of anode as claimed in claim 1 or 2 is from cooling plasma source, it is characterized in that: described shell (4) is tubular, offer inlet channel (13) along in the barrel of cylindrical outer casing (4) direction of axis line, inlet channel (13) is communicated with air inlet (9).
7. a kind of anode as claimed in claim 1 is from cooling plasma source, it is characterized in that: be provided with cooling structure (14) in described cooling duct (5), described cooling structure (14) is the cooling structure (14) formed in anode (2) inside by described cooling duct (5) annular distribution.
8. a kind of anode as claimed in claim 1 is from cooling plasma source, it is characterized in that: be provided with cooling structure (14) in described cooling duct (5), described cooling structure (14) is the cooling structure (14) formed in anode (2) inside by described cooling duct (5) spiral.
9. a kind of anode as claimed in claim 7 or 8 is from cooling plasma source, it is characterized in that: described cooling structure (14) be by described cooling duct (5) in vertical spiral at the cooling structure (14) that anode (2) inside is formed.
10. a kind of anode as claimed in claim 7 or 8 is from cooling plasma source, it is characterized in that: described cooling structure (14) is distributed in the inner cooling structure (14) formed of anode (2) by described cooling duct (5) in flat spin shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520080235.6U CN204377240U (en) | 2015-02-05 | 2015-02-05 | A kind of anode is from cooling plasma source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520080235.6U CN204377240U (en) | 2015-02-05 | 2015-02-05 | A kind of anode is from cooling plasma source |
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| CN204377240U true CN204377240U (en) | 2015-06-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602432A (en) * | 2015-02-05 | 2015-05-06 | 成都真火科技有限公司 | Self-cooled anode plasma source |
| CN109041395A (en) * | 2018-09-19 | 2018-12-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of air-cooling apparatus and plasma generator for plasma generator |
-
2015
- 2015-02-05 CN CN201520080235.6U patent/CN204377240U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602432A (en) * | 2015-02-05 | 2015-05-06 | 成都真火科技有限公司 | Self-cooled anode plasma source |
| CN109041395A (en) * | 2018-09-19 | 2018-12-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of air-cooling apparatus and plasma generator for plasma generator |
| CN109041395B (en) * | 2018-09-19 | 2019-07-23 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of air-cooling apparatus and plasma generator for plasma generator |
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