CN104333968A - Cathode of plasma torch - Google Patents
Cathode of plasma torch Download PDFInfo
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- CN104333968A CN104333968A CN201410559441.5A CN201410559441A CN104333968A CN 104333968 A CN104333968 A CN 104333968A CN 201410559441 A CN201410559441 A CN 201410559441A CN 104333968 A CN104333968 A CN 104333968A
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- cooling
- negative electrode
- cathode
- plasma torch
- anode
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- 238000001816 cooling Methods 0.000 claims abstract description 76
- 238000009434 installation Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005406 washing Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 22
- 239000007789 gas Substances 0.000 description 20
- 238000009413 insulation Methods 0.000 description 20
- 239000002826 coolant Substances 0.000 description 14
- 239000007921 spray Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003870 refractory metal Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001793 charged compounds Chemical group 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 free atomic group Chemical group 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000005433 ionosphere Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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- Plasma Technology (AREA)
Abstract
The invention provides a cathode of a plasma torch, and relates to a cathode structure of the plasma torch. The cathode of the plasma torch is characterized in that the cathode is internally provided with a cooling cavity and cooling branch grooves; the cathode has an integrated structure formed by a hollow round rod body and a solid head part, the inner space of the hollow round rod body forms a cooling cavity, the cooling branch grooves are annularly distributed at the rear part inside the solid head part with the axis of the cathode as the center, the cooling branch grooves and the cooling cavity are directly communicated, wall bodies between the cooling branch grooves form cooling rib plates, and radial overlapping parts of the cooling rib plates form a guide cone; and the outer side of the rear part of the wall body of the hollow round rod body is provided with a convex edge or the inner side of the rear part of the wall body of the hollow round rod body is provided with thread. A washing cooling mode can be applied to the cathode of the plasma torch, heat of the cathode can be quickly moved, the cooling area of the cathode is larger, the cathode is not likely to burn, the use cycle of the plasma torch is prolonged, the production efficiency is improved, and the production cost is saved.
Description
Technical field
The present invention relates to plasma apparatus, particularly relate to a kind of cathode construction of plasma torch.
Background technology
Current, plasma technology is widely used, is industrially applied to plasma ignition, plasma spraying, metal smelt, heating plasma manufacture nano material, cutting, the process of waste incineration refuse etc.Processing mode and the general mode of plasma are made a world of difference, plasma is a kind of state formed under ionosphere or electric discharge phenomena, will generate excited atom, excite molecule, reaction that the chemicals of the activity chemistry thing of dissociation atom, free atomic group, atom or molecular ion group and they and other collide and cause along with electric discharge phenomena.In plasma generator, discharge process makes work gas molecule lose outer-shell electron and form ionic condition, produces high temperature through mutually colliding, and temperature can reach more than several ten thousand degree.
Plasma pyrolysis water hydrogen producing technology is one of water hydrogen manufacturing candidate technologies put forward recent years, because water is a kind of material of quite stable, in atmospheric conditions, temperature hydrone when 2000K decomposes hardly, the water of 25% is had to decompose during 2500K, during 3400 ~ 3500K, the molar fraction of hydrogen and oxygen reaches maximum, be respectively 18% and 6%, when temperature reaches more than 4200K, hydrone all will be decomposed into hydrogen, hydrogen, oxygen, oxygen and hydrogen-oxygen atomic group, general mode of heating is difficult to reach so high temperature, use plasma torch then can accomplish, the discarded object that application plasma torch process danger is harmful and house refuse, gasification furnace is made not need input air or oxygen, the synthesis gas quality better that house refuse is transformed, reach the requirement of industrial chemicals, synthesis gas by rear class device fabrication methyl alcohol or dimethyl ether product, realizes resource and pollution-free process house refuse again, coal gasification production line sprays in gasification furnace after utilizing plasma torch that steam heating is decomposed again, chemical reaction is carried out with coal, the reaction occurred is exothermic reaction, gasification furnace is made not need input air or comburant oxygen, in the synthesis gas produced, the fraction scale of hydrogen is high, the content of waste gas is low, realizes energy-saving and emission-reduction.
The negative electrode of plasma torch is the parts of electron emission, and because the high temperature of the impact and tens thousand of degree of bearing electric current burns, therefore, the head of negative electrode is easy to ablated and causes damage, not only affects production, and increases production cost.
Summary of the invention
The object of the invention is to overcome the shortcoming that the negative electrode of existing plasma torch is easily ablated, a kind of plasma torch negative electrode being applicable to washing away the type of cooling is provided, make negative electrode not easily ablated, to extend the life cycle of plasma torch, enhance productivity and save production cost.
The negative electrode of a kind of plasma torch of the present invention, it is characterized in that in negative electrode, having cooling chamber (I) and cooling point groove (II), the integrative-structure that negative electrode is made up of open circles barred body (1) and entity head (4), wherein, the interior space of open circles barred body (1) forms cooling chamber (I), cooling point groove (II) is distributed in the rear portion in entity head (4) ringwise centered by the axis of negative electrode, a cooling point groove (II) is directly communicated with cooling chamber (I), each cooling divides the wall body between groove (II) to form cooling floor (5), cooling floor (5) radial direction join position form guiding cone (7).In the present invention, the wall body rear outside of open circles barred body (1) has mounting flange (8), or the wall body posterior medial of open circles barred body (1) has installation screw thread (9); Entity head (4) is in by the conical structure reduced before backward, and its cone angle (a) is 60 °-120 °, and the front end of cone is arc-shaped structure.
Negative electrode of the present invention is as one of the critical piece of plasma torch.Plasma torch is primarily of back seat (22), negative electrode (10), insulation gun rack (19), sleeve pipe (13) and anode (16) composition, wherein, the rotary structure that back seat (22) is hollow, negative electrode (10) is arranged on the revolving body front end of back seat (22), the axis of negative electrode (10) and the revolving body dead in line of back seat (22), installation screw socket (26) is had in the front portion of back seat (22), mozzle (24) is had in the rotary structure of back seat (22), mozzle (24) to extend in the cooling chamber (I) in negative electrode (10) and close to guiding cone (7), the cooling that the delivery port of mozzle (24) points in negative electrode (10) divides groove (II), cooling floor (5) and guiding cone (7), have living space between the outer wall of mozzle (24) and the revolving body inwall of back seat (22), space between the outer wall of mozzle (24) and the revolving body inwall of back seat (22) forms backwater room (Ⅸ), cooling water input interface (23) and cooling water output interface (25) is had at the rotary structure of back seat (22), space in the pipe that cooling water input interface (23) is communicated to mozzle (24), cooling water output interface (25) is communicated to backwater room (Ⅸ), the rotary structure that insulation gun rack (19) is hollow, the front and back of insulation gun rack (19) have front mounting groove (18) and rear mounting groove (21) respectively, have air chamber (VIII) in the rotary structure of insulation gun rack (19), air chamber (VIII) has work gas input interface (29) to access, sleeve pipe (13) is cylindrical structure, installation screw thread (12) is had outside the wall body at sleeve pipe (13) rear portion, there is front head (15) front end of sleeve pipe (13), the wall body at sleeve pipe (13) middle part there is coolant inlet (17) to access, the wall body that sleeve pipe (13) is anterior has coolant outlet (14) to pick out, anode (16) is the cone nozzle structure expanded gradually forward by rear portion, and the rear end of anode (16) is by the bell-mouth structure of air narrowed before backward, has through circular duct between the bell-mouth structure of air of anode (16) rear end and cone nozzle structure, anode (16) is arranged in sleeve pipe (13) with embedded mode, space between the outer wall of anode (16) and the inwall of sleeve pipe (13) forms cooling jacket (III), the bottom of cooling jacket (III) is communicated to coolant inlet (17), and the top of cooling jacket (III) is communicated to coolant outlet (14), sleeve pipe (13) is taken anode (16) and is arranged in the front mounting groove (18) of insulation gun rack (19), back seat (22) is taken negative electrode (10) and is arranged in the rear mounting groove (21) of insulation gun rack (19), the work gas passage (VII) of annular is had between the wall body of the outer wall that negative electrode (10) is anterior and insulation gun rack (19), the head end of negative electrode (10) extend in the horn mouth space of anode (16) rear end, bell-mouthed interior space is made to form region of discharge (VI), circular duct between the bell-mouth structure of air of anode (16) rear end and cone nozzle structure is formed compresses duct (V), in the cone nozzle structure of anode (16), space forms spray chamber (IV), air chamber (VIII) in insulation gun rack (19) is communicated to region of discharge (VI) by work gas passage (VII), and region of discharge (VI) is communicated to spray chamber (IV) by compression duct (V).During work, back seat (22) is as the electrical fitting of negative electrode (10), and sleeve pipe (13) is as the electrical fitting of anode; One road cooling water enters into space in the pipe of mozzle (24) by cooling water input interface (23), delivery port through mozzle (24) enters each cooling point groove (II) in negative electrode (10), after cooling water absorbs the heat of negative electrode (10), enter into backwater room (Ⅸ) through cooling chamber (I) again, then turn back in the loop of cooling system by cooling water output interface (25); Another road cooling water enters into cooling jacket (III) by coolant inlet (17), after absorbing the heat of anode, then turns back in the loop of cooling system by coolant outlet (14); Work gas or entered into air chamber (VIII) by work gas input interface (29) by the gas heated, then region of discharge (VI) is entered into by work gas passage (VII), between negative electrode (10) and anode (16), apply electric energy simultaneously, plasma arc is formed between the head end and the inwall of anode (16) of negative electrode (10), plasma arc enters spray chamber (IV) by compression duct (V), form plasma flare, the outlet ejection of plasma flare through anode (16) front end.In said process, be ionized, become ion arc by the water vapour heated in region of discharge (VI), ion arc, when through compression duct (V), is further heated decomposition, becomes target product.
The high temperature that the negative electrode head of plasma torch need bear rush of current and tens thousand of degree burns, and therefore, must effective cooling provision be taked could to increase the useful life of negative electrode by anticathode head.The present invention takes the rear portion in the entity head (4) of negative electrode to arrange cooling point groove (II) and guiding cone (7), make cooling point groove (II), guiding cone (7), cooling floor (5) is all closely adjacent with entity head (4), in the anticathode cooling procedure of cooling water, the current of cooling water pass through the delivery port of mozzle (24) to guiding cone (7), cooling floor (5), the wall body of cooling point groove (II) and cooling chamber (I) carries out washing away cooling, fast the heat of negative electrode can be removed, and negative electrode area of dissipation of the present invention is larger, thus, negative electrode of the present invention can obtain more effective cooling, make negative electrode not easily ablated, thus protect negative electrode better.
The present invention adopts nut check mode or thread connecting mode that negative electrode is arranged on the revolving body front end of back seat (22), when adopting nut check mode, mounting flange (8) is had in open circles barred body (1) the wall body rear outside of negative electrode, there is the locking screw socket locking nut (28) and connect in the revolving body front end of back seat (22) simultaneously, use locking nut (28) negative electrode to be arranged on the revolving body front end of back seat (22); When adopting thread connecting mode, there is installation screw thread (9) at the wall body posterior medial of the open circles barred body (1) of negative electrode, having the external screw thread coordinating and install screw thread (9) simultaneously in the revolving body front end of back seat (22).
Negative electrode of the present invention selects refractory metal to make, and described refractory metal material comprises the alloy material of tungsten, tantalum, molybdenum, niobium.
The invention has the beneficial effects as follows: the one provided is applicable to washing away type of cooling plasma torch negative electrode, fast the heat of negative electrode can be removed, and the area of dissipation of negative electrode is larger, make negative electrode not easily ablated, to extend the life cycle of plasma torch, enhance productivity and save production cost.
Accompanying drawing explanation
Fig. 1 is the cathode junction composition of a kind of plasma torch of the present invention.
Fig. 2 is the cathode junction composition of another kind of plasma torch of the present invention.
Fig. 3 is the A-A cutaway view of Fig. 1 or Fig. 2.
Fig. 4 is the B-B cutaway view of Fig. 1 or Fig. 2.
Fig. 5 is application schematic diagram of the present invention.
In figure: 1. the open circles barred body of negative electrode, 2. the taper seat of negative electrode head, 3. the front end face of negative electrode, 4. the entity head of negative electrode, 5. the cooling floor in cathode taps, 6. the rear end face of negative electrode, 7. the guiding cone in cathode taps, 8. mounting flange, 9. screw thread is installed, 10. negative electrode, 11. sealing rings, the installation screw thread of 12. anode sleeve pipes, the sleeve pipe of 13. anodes, 14. coolant outlets, the front head of 15. anode sleeve pipes, 16. anodes, 17. coolant inlets, the front mounting groove of 18. insulation gun racks, 19. insulation gun racks, 20. red copper sealing rings, the rear mounting groove of 21. insulation gun racks, 22. back seats, 23. cooling water input interfaces, 24. mozzles, 25. cooling water output interfaces, the installation screw socket of 26. back seats, 27. locking screw sockets, 28. locking nuts, 29. work gas input interfaces, a. cone angle, the termination radius of R1. negative electrode, the level and smooth radius of R2., I. the cooling chamber of negative electrode, II. the cooling in cathode taps divides groove, and III. the cooling jacket of anode, IV. spray chamber, V. compression duct, VI. region of discharge, VII. work gas passage, VIII. air chamber, Ⅸ. backwater room.
Embodiment
embodiment 1in execution mode shown in Fig. 1 and Fig. 2, the negative electrode of a kind of plasma torch of the present invention, it is characterized in that in negative electrode, having cooling chamber (I) and cooling point groove (II), the integrative-structure that negative electrode is made up of open circles barred body (1) and entity head (4), wherein, the interior space of open circles barred body (1) forms cooling chamber (I), cooling point groove (II) is distributed in the rear portion in entity head (4) ringwise centered by the axis of negative electrode, a cooling point groove (II) is directly communicated with cooling chamber (I), each cooling divides the wall body between groove (II) to form cooling floor (5), cooling floor (5) radial direction join position form guiding cone (7).In the present embodiment, entity head (4) is in by the conical structure reduced before backward, and its cone angle (a) is 60 °-120 °, and the level and smooth radius (R2) of taper seat and straight disc intersection area is 5mm, the front end of cone is arc-shaped structure, and arc radius is 8mm-15mm.The present embodiment adopts nut check mode or thread connecting mode that negative electrode is arranged on the revolving body front end of back seat (22), when adopting nut check mode, mounting flange (8) is had in open circles barred body (1) the wall body rear outside of negative electrode, there is the locking screw socket locking nut (28) and connect in the revolving body front end of back seat (22) simultaneously, use locking nut (28) negative electrode to be arranged on the revolving body front end of back seat (22); When adopting thread connecting mode, there is installation screw thread (9) at the wall body posterior medial of the open circles barred body (1) of negative electrode, having the external screw thread coordinating and install screw thread (9) simultaneously in the revolving body front end of back seat (22).The negative electrode of the present embodiment selects refractory metal to make, and described refractory metal material comprises the alloy material of tungsten, tantalum, molybdenum, niobium.
embodiment 2execution mode shown in Fig. 5 is the application of negative electrode on plasma torch in the first embodiment, plasma torch is primarily of back seat (22), negative electrode (10), locking nut (28), insulation gun rack (19), sleeve pipe (13) and anode (16) composition, wherein, it is identical that the structure and first of negative electrode (10) is implemented, and repeats no more, the rotary structure that back seat (22) is hollow, negative electrode (10) is arranged on the revolving body front end of back seat (22) in nut check mode, locking nut (28) is used negative electrode to be arranged on the revolving body front end of back seat (22), the axis of negative electrode (10) and the revolving body dead in line of back seat (22), red copper sealing ring (20) is had between the rear end face and the revolving body front end face of back seat of negative electrode, installation screw socket (26) is had in the front portion of back seat (22), mozzle (24) is had in the rotary structure of back seat (22), mozzle (24) to extend in the cooling chamber (I) in negative electrode (10) and close to guiding cone (7), the cooling that the delivery port of mozzle (24) points in negative electrode (10) divides groove (II), cooling floor (5) and guiding cone (7), have living space between the outer wall of mozzle (24) and the revolving body inwall of back seat (22), space between the outer wall of mozzle (24) and the revolving body inwall of back seat (22) forms backwater room (Ⅸ), cooling water input interface (23) and cooling water output interface (25) is had at the rotary structure of back seat (22), space in the pipe that cooling water input interface (23) is communicated to mozzle (24), cooling water output interface (25) is communicated to backwater room (Ⅸ), the rotary structure that insulation gun rack (19) is hollow, the front and back of insulation gun rack (19) have front mounting groove (18) and rear mounting groove (21) respectively, have air chamber (VIII) in the rotary structure of insulation gun rack (19), air chamber (VIII) has work gas input interface (29) to access, sleeve pipe (13) is cylindrical structure, installation screw thread (12) is had outside the wall body at sleeve pipe (13) rear portion, there is front head (15) front end of sleeve pipe (13), the wall body at sleeve pipe (13) middle part there is coolant inlet (17) to access, the wall body that sleeve pipe (13) is anterior has coolant outlet (14) to pick out, anode (16) is the cone nozzle structure expanded gradually forward by rear portion, and the rear end of anode (16) is by the bell-mouth structure of air narrowed before backward, has through circular duct between the bell-mouth structure of air of anode (16) rear end and cone nozzle structure, anode (16) is arranged in sleeve pipe (13) with embedded mode, space between the outer wall of anode (16) and the inwall of sleeve pipe (13) forms cooling jacket (III), the bottom of cooling jacket (III) is communicated to coolant inlet (17), and the top of cooling jacket (III) is communicated to coolant outlet (14), sleeve pipe (13) is taken anode (16) and is arranged in the front mounting groove (18) of insulation gun rack (19), sealing ring (11) is had between front mounting groove (18) end and the rear end face of anode (16) of insulation gun rack (19), back seat (22) is taken negative electrode (10) and is arranged in the rear mounting groove (21) of insulation gun rack (19), the work gas passage (VII) of annular is had between the wall body of the outer wall that negative electrode (10) is anterior and insulation gun rack (19), the head end of negative electrode (10) extend in the horn mouth space of anode (16) rear end, bell-mouthed interior space is made to form region of discharge (VI), circular duct between the bell-mouth structure of air of anode (16) rear end and cone nozzle structure is formed compresses duct (V), in the cone nozzle structure of anode (16), space forms spray chamber (IV), air chamber (VIII) in insulation gun rack (19) is communicated to region of discharge (VI) by work gas passage (VII), and region of discharge (VI) is communicated to spray chamber (IV) by compression duct (V).During work, back seat (22) is as the electrical fitting of negative electrode (10), and sleeve pipe (13) is as the electrical fitting of anode; One road cooling water enters into space in the pipe of mozzle (24) by cooling water input interface (23), delivery port through mozzle (24) enters each cooling point groove (II) in negative electrode (10), after cooling water absorbs the heat of negative electrode (10), enter into backwater room (Ⅸ) through cooling chamber (I) again, then turn back in the loop of cooling system by cooling water output interface (25); Another road cooling water enters into cooling jacket (III) by coolant inlet (17), after absorbing the heat of anode, then turns back in the loop of cooling system by coolant outlet (14); Work gas or entered into air chamber (VIII) by work gas input interface (29) by the gas heated, then region of discharge (VI) is entered into by work gas passage (VII), between negative electrode (10) and anode (16), apply electric energy simultaneously, plasma arc is formed between the head end and the inwall of anode (16) of negative electrode (10), plasma arc enters spray chamber (IV) by compression duct (V), form plasma flare, the outlet ejection of plasma flare through anode (16) front end.In said process, be ionized, become ion arc by the water vapour heated in region of discharge (VI), ion arc, when through compression duct (V), is further heated decomposition, becomes target product.
Claims (3)
1. the negative electrode of a plasma torch, it is characterized in that in negative electrode, having cooling chamber (I) and cooling point groove (II), the integrative-structure that negative electrode is made up of open circles barred body (1) and entity head (4), wherein, the interior space of open circles barred body (1) forms cooling chamber (I), cooling point groove (II) is distributed in the rear portion in entity head (4) ringwise centered by the axis of negative electrode, a cooling point groove (II) is directly communicated with cooling chamber (I), each cooling divides the wall body between groove (II) to form cooling floor (5), cooling floor (5) radial direction join position form guiding cone (7).
2. the negative electrode of a kind of plasma torch according to claim 1, it is characterized in that the wall body rear outside of open circles barred body (1) has mounting flange (8), or the wall body posterior medial of open circles barred body (1) has installation screw thread (9).
3. the negative electrode of a kind of plasma torch according to claim 1, it is characterized in that entity head (4) is in by the conical structure reduced before backward, its cone angle (a) is 60 °-120 °, and the front end of cone is arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559441.5A CN104333968A (en) | 2014-10-18 | 2014-10-18 | Cathode of plasma torch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559441.5A CN104333968A (en) | 2014-10-18 | 2014-10-18 | Cathode of plasma torch |
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| CN104333968A true CN104333968A (en) | 2015-02-04 |
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| CN201410559441.5A Pending CN104333968A (en) | 2014-10-18 | 2014-10-18 | Cathode of plasma torch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107072028A (en) * | 2017-06-28 | 2017-08-18 | 衢州昀睿工业设计有限公司 | Utilize the device for cooling down waterpower rotation electrode |
| CN111050458A (en) * | 2019-12-09 | 2020-04-21 | 重庆大学 | A direct current arc cathode head with micro-rib structure in inner hole |
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| CN103458602A (en) * | 2013-09-05 | 2013-12-18 | 南京理工大学 | Electrode water-cooling integrated supersonic speed plasma torch |
| CN203827593U (en) * | 2014-04-27 | 2014-09-10 | 衢州昀睿工业设计有限公司 | Plasma torch used for dielectric heating |
| CN204168582U (en) * | 2014-10-18 | 2015-02-18 | 衢州迪升工业设计有限公司 | A kind of negative electrode of plasma torch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107072028A (en) * | 2017-06-28 | 2017-08-18 | 衢州昀睿工业设计有限公司 | Utilize the device for cooling down waterpower rotation electrode |
| CN111050458A (en) * | 2019-12-09 | 2020-04-21 | 重庆大学 | A direct current arc cathode head with micro-rib structure in inner hole |
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Application publication date: 20150204 |