CN203827594U - Rotary cathode possessing cooling rib rings - Google Patents
Rotary cathode possessing cooling rib rings Download PDFInfo
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- CN203827594U CN203827594U CN201420236756.1U CN201420236756U CN203827594U CN 203827594 U CN203827594 U CN 203827594U CN 201420236756 U CN201420236756 U CN 201420236756U CN 203827594 U CN203827594 U CN 203827594U
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- negative electrode
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Abstract
The utility model discloses a rotary cathode possessing cooling rib rings and relates to a plasma torch cathode. A longitudinally through column-shaped hole passage is positioned in the axial center of the rotary cathode; the inner wall of the front end of the column-shaped hole passageway forms an inner annular discharging surface; the outer wall of the front end of the rotary cathode forms an embedding surface a; the outer wall of the rear end of the rotary cathode forms an embedding b; the outer wall of the rotary cathode between the embedding surface a and the embedding surface b is provided with protruded cooling rib rings; the rotary cathode is installed in the cathode base by embedding; a cooling water jacket is formed between the inner wall of the cathode base and outer wall of the rotary cathode; the front end wall body of the cathode base is provided with an embedding opening a; the embedding surface a of the rotary cathode is tightly embedded into the embedding opening a on the front end wall body of the cathode base; the rear wall body of the cathode base is provided with an embedding opening b; and the embedding surface b of the rotary cathode is tightly embedded into the embedding opening b of the rear wall body of the cathode base . The rotary cathode possessing cooling rib rings is applied in the plasma heating torch and overcomes the shortcoming that the cathode is easy to be ablated.
Description
Technical field
The utility model relates to plasma apparatus, particularly relates to a kind of negative electrode of plasma torch.
Background technology
Current, plasma technology is widely used, and the industrial plasma ignition, plasma spraying, metal smelt, heating plasma of being applied to manufactured nano material, cutting, waste incineration and refuse processing etc.Plasma is formed a kind of state under ionosphere or electric discharge phenomena, in plasma generator, discharge process makes gas molecule lose outer-shell electron and forms ionic condition, through mutually colliding, produce high temperature, therefore, the central temperature of plasma flare can be up to more than tens thousand of degree Celsius, more than torch lip temperature also can reach thousands of degree, processed material is subject to high-temperature plasma while impacting, and its molecule will decompose, atom will reconfigure and generate new material.
The requirement of different application scenario article on plasma equipment is different, when for the treatment of harmful exhaust that Chemical Manufacture is discharged or for the hydrogen manufacturing of pyrolysis water, need heated medium there is stronger activity and in plasma gun, have enough residence times, therefore, the design of plasma equipment has proposed different requirements.Existing plasma apparatus can not meet the instructions for use of harmful exhaust processing or the hydrogen manufacturing of pyrolysis water, and electrode is easily ablated, and useful life is not long.
Utility model content
The purpose of this utility model is to overcome not long shortcoming of the easy ablation of existing plasma apparatus electrode, useful life; a kind of revolving body negative electrode with cooling gilled rings is provided; for the hydrogen manufacturing of pyrolysis water or for the treatment of the plasma apparatus of harmful substance; make plasma apparatus meet the instructions for use of harmful exhaust processing or the hydrogen manufacturing of pyrolysis water; realize clean burning, preserve the ecological environment.
A kind of revolving body negative electrode with cooling gilled rings of the present utility model, it is characterized in that revolving body negative electrode is one of parts of plasma torch, revolving body negative electrode is arranged in the negative electrode pedestal at plasma torch rear portion, wherein, the cylindrical bore connecting before and after the axial centre of revolving body negative electrode (3) has, ring discharge face (303) in the front inner wall of cylindrical bore forms, the outer wall of revolving body negative electrode (3) front end forms embedded surface a(302), the outer wall of revolving body negative electrode (3) rear end forms embedded surface b(304), embedded surface a(302) and embedded surface b(304) between revolving body outer wall on have protruding ring, protruding ring on revolving body outer wall forms cooling gilled rings (301), revolving body negative electrode (3) is arranged in negative electrode pedestal (2) with embedded mode, between the outer wall of the inwall of negative electrode pedestal (2) and revolving body negative electrode (3), have living space, space between negative electrode pedestal (2) inwall and revolving body negative electrode (3) outer wall forms cooling jacket (I), cooling jacket (I) has cooling water inlet interface (205) access and cooling water outlet interface (202) to pick out, on the front end wall body of negative electrode pedestal (2), have and embed a mouthful a(203), the embedded surface a(302 of revolving body negative electrode (3)) be closely embedded in the embedding mouth a(203 on negative electrode pedestal (2) front end wall body) in, on the rear portion wall body of negative electrode pedestal (2), have and embed a mouthful b(206), the embedded surface b(304 of revolving body negative electrode (3)) be closely embedded in the embedding mouth b(206 on the wall body of negative electrode pedestal (2) rear portion) in.
In the utility model, the cooling gilled rings (301) on revolving body negative electrode (3) outer wall is more than a ring, and the cooling gilled rings of many rings is evenly distributed on the outer wall of revolving body negative electrode (3), there is adaptor (1) access the rear end of negative electrode pedestal (2), the swirler (101) stretching out before the front end of adaptor (1) is oriented, the rectangular screw thread of swirler (101) or trapezoidal thread structure, swirler (101) extend in the cylindrical bore of revolving body negative electrode (3), the pitch space of swirler (101) forms helical duct, in the body of adaptor (1), there is cavity, cavity in adaptor body forms air chamber (IX), on the wall body of air chamber (IX), there is through hole (102), there is heat medium input interface (201) rear end of adaptor (1), heat medium input interface (201) is communicated to air chamber (IX), air chamber (IX) is communicated in the cylindrical bore of revolving body negative electrode (3) through the helical duct on through hole (102) and swirler (101).
The utility model is applied in plasma heating spray gun, described plasma heating spray gun comprises negative electrode, negative electrode pedestal, anode and insulating frame, wherein, revolving body negative electrode of the present utility model is arranged among negative electrode pedestal, negative electrode pedestal is connected on the rear end of insulating frame, anode is embedded among insulating frame, anode is the flared structure of convergent after by forward direction, there is columniform aditus laryngis at the center, rear portion of anode, columniform aditus laryngis forms pressure channel, the inwall of the flared structure of anode forms the discharge face of anode, the interior space of the flared structure of anode forms ion arc passage, space between anode outer wall and insulating frame inwall forms the cooling jacket of anode, the cooling jacket of anode has cooling water inlet access and coolant outlet to pick out, at the rear portion of insulating frame, there is annular work air chamber, work air chamber has the access of work gas interface, the gas channel that has work gas between the rear end of anode and the front end of revolving body negative electrode, the interior ring discharge face of revolving body negative electrode and the space between the discharge face of the tubaeform inwall of anode form region of discharge.
Each loop works flow process in above-mentioned utility model is: a road cooling water enters into the cooling jacket (I) of negative electrode from cooling water inlet interface (205), wash away outer wall and the cooling gilled rings (301) of revolving body negative electrode (3), heat is removed fast, then, cooling water flows out from cooling water outlet interface (202), turns back in cooling system; Another road cooling water enters into the cooling jacket (IV) of anode from cooling water inlet (602), washes away the outer wall of anode (4), anode (4) is obtained cooling, and then, cooling water flows out from coolant outlet (601), turns back in cooling system; Work gas enters into work air chamber (VIII) from work gas interface, then enters into the region of discharge between the interior ring of revolving body negative electrode and the tubaeform inwall of anode by gas channel (II), forms plasma arc, then from torch outlet (VI) ejection; The heat medium of gaseous state enters into air chamber (IX) from input interface (103), then the helical duct that passes through through hole (102) and swirler (101) enters into the heat tunnel (VII) at revolving body negative electrode (3) center with rotation mode, plasma arc by high temperature heats, by pressure channel (III), further heat up again, activate, decompose or generate new material, then successively by ion arc passage (V), torch outlet (VI) ejection.Described work gas bag is drawn together wherein a kind of of air, nitrogen and hydrogen, and described heat medium comprises wherein a kind of of water vapour and industrial harmful gas, and when heat medium is water vapour, work gas is selected hydrogen.
In plasma apparatus, the effect of negative electrode is electron emission, and the arc root temperature of plasma-arc is very high, very easily makes cathode burning corrosion.The utility model is the rotary structure with cooling gilled rings the cathode design of plasma heating spray gun, the cooling gilled rings of many rings is evenly distributed on the outer wall of revolving body negative electrode (3), because the space between negative electrode pedestal (2) inwall and revolving body negative electrode (3) outer wall forms cooling jacket (I), therefore, the cooling gilled rings of many rings is placed in cooling jacket (I), cooling water directly washes away the outer wall of revolving body negative electrode (3) and the cooling gilled rings of many rings, the area of catching a cold of revolving body negative electrode (3) is increased, revolving body negative electrode (3) obtains quick heat radiating, avoid or slow down ablated, ring discharge face (303) in the cylindrical bore front inner wall of the axial centre of revolving body negative electrode (3) forms, increases the area of electric discharge, and it is upper that the arc root of plasma arc is dispersed in interior ring discharge face (303), avoids the too high and ablation negative electrode of local temperature, when plasma heating spray gun is worked, the cylindrical bore of the axial centre of revolving body negative electrode (3) forms heat tunnel (VII) naturally by operating mode, heat medium is heated more concentrated in the cylindrical bore of revolving body negative electrode (3) forms heat tunnel (VII), therefore, better to the heating effect of medium.
Above-mentioned utility model enters into heat tunnel (VII) by swirler (101) with rotation mode the heat medium of gaseous state, swirling eddy is more easily dispersed on the interior ring discharge face of revolving body negative electrode (3) the arc root of plasma arc, meanwhile, that medium is heated is more even for swirling eddy.
The beneficial effects of the utility model are: a kind of revolving body negative electrode with cooling gilled rings providing; in plasma heating spray gun, apply; overcome not long shortcoming of the easy ablation of existing plasma torch negative electrode, useful life; make plasma torch can meet the instructions for use of harmful exhaust processing or the hydrogen manufacturing of pyrolysis water; realize clean burning, preserve the ecological environment.
Accompanying drawing explanation
Fig. 1 is a kind of revolving body cathode junction composition with cooling gilled rings of the present utility model.
Fig. 2 is the schematic diagram of revolving body negative electrode of the present utility model and base combination.
Fig. 3 is the schematic diagram that revolving body negative electrode of the present utility model is applied to plasma torch.
In figure: 1. adaptor, 101. swirler, 102. through hole, 103. heat medium input interfaces, 2. negative electrode pedestal, the connector of 201. adaptors, 202. cooling water outlet interfaces, 203. embed a mouthful a, the installing hole of 204. negative electrode pedestals, 205. cooling water inlet interfaces, 206. embed a mouthful b, 3. revolving body negative electrode, 301. cooling gilled rings, 302. embedded surface a, 303. interior ring discharge faces, 304. embedded surface b, 4. anode, 5. insulating frame, 6. front end, 601. coolant outlet, 602. cooling water inlet, 7. magnetic compression coil, I. the cooling jacket of negative electrode, II. the gas channel of work gas, III. pressure channel, IV. the cooling jacket of anode, V. ion arc passage, VI. torch outlet, VII. heat tunnel, VIII. work air chamber, IX. the air chamber of heat medium.
Embodiment
In execution mode shown in embodiment 1 Fig. 1, the cylindrical bore connecting before and after the axial centre of revolving body negative electrode (3) has, ring discharge face (303) in the front inner wall of cylindrical bore forms, the outer wall of revolving body negative electrode (3) front end forms embedded surface a(302), the outer wall of revolving body negative electrode (3) rear end forms embedded surface b(304), embedded surface a(302) and embedded surface b(304) between revolving body outer wall on have protruding ring, protruding ring on revolving body outer wall forms cooling gilled rings (301), and cooling gilled rings (301) is Fourth Ring.The revolving body negative electrode (3) of the present embodiment is as one of parts of plasma torch, is arranged in the negative electrode pedestal at plasma torch rear portion and applies.
In execution mode shown in embodiment 2 Fig. 2, revolving body negative electrode (3) is arranged in negative electrode pedestal (2) with embedded mode, between the outer wall of the inwall of negative electrode pedestal (2) and revolving body negative electrode (3), have living space, space between negative electrode pedestal (2) inwall and revolving body negative electrode (3) outer wall forms cooling jacket (I), cooling jacket (I) has cooling water inlet interface (205) access and cooling water outlet interface (202) to pick out, on the front end wall body of negative electrode pedestal (2), have and embed a mouthful a(203), the embedded surface a(302 of revolving body negative electrode (3)) be closely embedded in the embedding mouth a(203 on negative electrode pedestal (2) front end wall body) in, on the rear portion wall body of negative electrode pedestal (2), have and embed a mouthful b(206), the embedded surface b(304 of revolving body negative electrode (3)) be closely embedded in the embedding mouth b(206 on the wall body of negative electrode pedestal (2) rear portion) in, the connector (201) that has adaptor at the center, rear end of negative electrode pedestal (2).
In execution mode shown in embodiment 3 Fig. 3, a kind of revolving body negative electrode with cooling gilled rings is applied in plasma heating spray gun, plasma heating spray gun comprises revolving body negative electrode (3), negative electrode pedestal (2), adaptor (1), insulating frame (5), anode (4), front end (6) and magnetic compression coil (7), wherein, identical with described in the first embodiment and the second embodiment of the structure of revolving body negative electrode (3) and negative electrode pedestal (2), repeats no more.Adaptor (1) is arranged on the connector (201) of negative electrode pedestal (2) rear end, the swirler (101) stretching out before the front end of adaptor (1) is oriented, the rectangular screw thread of swirler (101) or trapezoidal thread structure, swirler (101) extend in the cylindrical bore of revolving body negative electrode (3), the pitch space of swirler (101) forms helical duct, in the body of adaptor (1), there is cavity, cavity in adaptor body forms air chamber (IX), on the wall body of air chamber (IX), there is through hole (102), there is heat medium input interface (201) rear end of adaptor (1), heat medium input interface (201) is communicated to air chamber (IX), air chamber (IX) is communicated in the cylindrical bore of revolving body negative electrode (3) through the helical duct on through hole (102) and swirler (101), the cylindrical bore of revolving body negative electrode (3) forms heat tunnel (VII), negative electrode pedestal (2) is connected on the rear end of insulating frame (5), front end (6) is connected on the front end of insulating frame (5), has cooling water inlet (602) access and coolant outlet (601) to pick out on front end (6), the front end of anode (4) is embedded among front end (6), and the rear end of anode (4) is embedded among insulating frame (5), anode (4) is the flared structure by convergent after forward direction, there is columniform aditus laryngis at the center, rear portion of anode (4), columniform aditus laryngis forms pressure channel (III), the inwall of the flared structure of anode (4) forms the discharge face of anode, and the interior space of the flared structure of anode (4) forms ion arc passage (V), space between the inwall of the outer wall of anode (4) and insulating frame (5) forms the cooling jacket (IV) of anode, and the cooling jacket of anode (IV) is communicated to cooling water inlet (602) and coolant outlet (601), at the rear portion of insulating frame (5), have annular work air chamber (VIII), work air chamber (VIII) has the access of work gas interface, has the gas channel (II) of work gas between the rear end of anode (4) and the front end of revolving body negative electrode (3), space between the interior ring discharge face (303) of revolving body negative electrode (3) and the tubaeform inwall discharge face of anode (4) forms region of discharge.The present embodiment is when work, one road cooling water enters into the cooling jacket (I) of negative electrode from cooling water inlet interface (205), wash away outer wall and the cooling gilled rings (301) of revolving body negative electrode (3), heat is removed fast, then, cooling water flows out from cooling water outlet interface (202), turns back in cooling system; Another road cooling water enters into the cooling jacket (IV) of anode from cooling water inlet (602), washes away the outer wall of anode (4), anode (4) is obtained cooling, and then, cooling water flows out from coolant outlet (601), turns back in cooling system; Work gas is input to work air chamber (VIII) from work gas interface, work gas enters into the region of discharge between the interior ring of revolving body negative electrode and the tubaeform inwall of anode by gas channel (II), between revolving body negative electrode (3) and anode (4), apply operating voltage and striking voltage, make region of discharge form plasma arc, then from torch outlet (VI) ejection; Simultaneously, the heat medium of gaseous state is input to air chamber (IX) from input interface (103), heat medium enters into the heat tunnel (VII) at revolving body negative electrode (3) center through the helical duct of through hole (102) and swirler (101) with rotation mode, plasma arc by high temperature heats, by pressure channel (III), further heat up again, activate, decompose or generate new material, then successively by ion arc passage (V), torch outlet (VI) ejection.Work gas in the present embodiment is wherein a kind of of air, nitrogen and hydrogen, and heat medium is wherein a kind of of water vapour and industrial harmful gas.When heat medium is water vapour, work gas is selected hydrogen.While applying using the spray gun of the present embodiment as pyrolysis water hydrogen producer, under condition of normal pressure, easily realize the optimum temperature 3400～3500K that water is heated to decomposition, with coal gasification coproduction gas making or be used for disposing house refuse, realize clean burning, preserve the ecological environment.
In the above embodiments, revolving body negative electrode (3) and anode (4) select red copper material to make, and insulating frame (5) selects bakelite material or polytetrafluoroethylmaterial material to make, and remaining part selects stainless steel material to make.
Claims (3)
1. a revolving body negative electrode with cooling gilled rings, it is characterized in that revolving body negative electrode is one of parts of plasma torch, revolving body negative electrode is arranged in the negative electrode pedestal at plasma torch rear portion, wherein, the cylindrical bore connecting before and after the axial centre of revolving body negative electrode (3) has, ring discharge face (303) in the front inner wall of cylindrical bore forms, the outer wall of revolving body negative electrode (3) front end forms embedded surface a(302), the outer wall of revolving body negative electrode (3) rear end forms embedded surface b(304), embedded surface a(302) and embedded surface b(304) between revolving body outer wall on have protruding ring, protruding ring on revolving body outer wall forms cooling gilled rings (301), revolving body negative electrode (3) is arranged in negative electrode pedestal (2) with embedded mode, between the outer wall of the inwall of negative electrode pedestal (2) and revolving body negative electrode (3), have living space, space between negative electrode pedestal (2) inwall and revolving body negative electrode (3) outer wall forms cooling jacket (I), cooling jacket (I) has cooling water inlet interface (205) access and cooling water outlet interface (202) to pick out, on the front end wall body of negative electrode pedestal (2), have and embed a mouthful a(203), the embedded surface a(302 of revolving body negative electrode (3)) be closely embedded in the embedding mouth a(203 on negative electrode pedestal (2) front end wall body) in, on the rear portion wall body of negative electrode pedestal (2), have and embed a mouthful b(206), the embedded surface b(304 of revolving body negative electrode (3)) be closely embedded in the embedding mouth b(206 on the wall body of negative electrode pedestal (2) rear portion) in.
2. a kind of revolving body negative electrode with cooling gilled rings according to claim 1, is characterized in that the cooling gilled rings (301) on revolving body negative electrode (3) outer wall is more than a ring, and the cooling gilled rings of many rings is evenly distributed on the outer wall of revolving body negative electrode (3).
3. a kind of revolving body negative electrode with cooling gilled rings according to claim 1, there is adaptor (1) access the rear end that it is characterized in that negative electrode pedestal (2), the swirler (101) stretching out before the front end of adaptor (1) is oriented, the rectangular screw thread of swirler (101) or trapezoidal thread structure, swirler (101) extend in the cylindrical bore of revolving body negative electrode (3), the pitch space of swirler (101) forms helical duct, in the body of adaptor (1), there is cavity, cavity in adaptor body forms air chamber (IX), on the wall body of air chamber (IX), there is through hole (102), there is heat medium input interface (201) rear end of adaptor (1), heat medium input interface (201) is communicated to air chamber (IX), air chamber (IX) is communicated in the cylindrical bore of revolving body negative electrode (3) through the helical duct on through hole (102) and swirler (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420236756.1U CN203827594U (en) | 2014-05-10 | 2014-05-10 | Rotary cathode possessing cooling rib rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420236756.1U CN203827594U (en) | 2014-05-10 | 2014-05-10 | Rotary cathode possessing cooling rib rings |
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| Publication Number | Publication Date |
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| CN203827594U true CN203827594U (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420236756.1U Withdrawn - After Issue CN203827594U (en) | 2014-05-10 | 2014-05-10 | Rotary cathode possessing cooling rib rings |
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| CN (1) | CN203827594U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929872A (en) * | 2014-05-10 | 2014-07-16 | 衢州昀睿工业设计有限公司 | Revolved body cathode with cooling rib rings |
| CN104754849A (en) * | 2015-04-12 | 2015-07-01 | 衢州迪升工业设计有限公司 | Jet-propelled cathode and plasma gasification spray gun |
| CN111307861A (en) * | 2020-03-18 | 2020-06-19 | 浙江大学 | Arc ablation test system based on cathode rotation |
-
2014
- 2014-05-10 CN CN201420236756.1U patent/CN203827594U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929872A (en) * | 2014-05-10 | 2014-07-16 | 衢州昀睿工业设计有限公司 | Revolved body cathode with cooling rib rings |
| CN104754849A (en) * | 2015-04-12 | 2015-07-01 | 衢州迪升工业设计有限公司 | Jet-propelled cathode and plasma gasification spray gun |
| CN111307861A (en) * | 2020-03-18 | 2020-06-19 | 浙江大学 | Arc ablation test system based on cathode rotation |
| CN111307861B (en) * | 2020-03-18 | 2021-04-06 | 浙江大学 | Arc ablation test system based on cathode rotation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20160504 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |