CN204887664U - Two anode arc of input power adjustable add hot plasma spray gun - Google Patents
Two anode arc of input power adjustable add hot plasma spray gun Download PDFInfo
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- CN204887664U CN204887664U CN201520622320.0U CN201520622320U CN204887664U CN 204887664 U CN204887664 U CN 204887664U CN 201520622320 U CN201520622320 U CN 201520622320U CN 204887664 U CN204887664 U CN 204887664U
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- interior insulating
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Abstract
The utility model discloses a two anode arc of input power adjustable add hot plasma spray gun, including positive pole, internal insulation sleeve, negative pole, drive screw, end cover and external insulation sleeve, the utility model discloses a positive pole nozzle comprises two positive poles, promptly basic positive pole and auxiliary anode to separate through the potsherd of nai high temperature insulation, realize artificially adjusting arc root position, simultaneously the utility model discloses the input power that the spray gun was adjusted to the negative and positive pole pitch is adjusted to the accessible, and input power is adjustable in the structural realization arc heating plasma spray gun of follow. The utility model provides an it is good that the arc heating plasma gun has an arc stabilityarc, and cooling efficiency is high, long service life's characteristics.
Description
Technical field
The utility model belongs to heat plasma technology field, the double anode arc heating plasma torch that particularly a kind of input power is adjustable.
Background technology
Arc heating plasma gun utilizes electric energy by the high-temperature electric arc heated air formed of discharging between two electrodes, and gas is heated by the electric arc simultaneously 1 × 10 after entering anode nozzle compression section
4ionize after the high temperature of more than K, enter anode nozzle expansion segment expansion acceleration and reach, finally form plasma jet.Arc heat plasma technique has now been widely used in machinery, chemical industry, material and each field of aviation aerospace.The Specifeca tion speeification of spray gun depends on temperature and the VELOCITY DISTRIBUTION of plasma jet, and its temperature and VELOCITY DISTRIBUTION situation depend on the design feature of spray gun, therefore improves the structure of spray gun, and making it more to rationalize, is the problem that this field is paid close attention to jointly.At present, conventional arc heating plasma torch, what mostly adopt is pair of electrodes, namely by a negative electrode and an anode, under the effect of DC power supply, produces plasma jet.In anode nozzle, due to the interaction of flow field, electromagnetic field, high-temperature electric arc is constantly moved in anode, the energy of plasma is constantly changed, causes jet unstable, simultaneously, single anode construction easily causes high-temperature electric arc to be gathered in anode interior, causes electrode erosion.
And the cathode and anode of most of arc heating plasma gun is structurally fixing, and spacing therebetween is also fixing, makes the input power of spray gun under identical operating current be certain.
Utility model content
Found by research, improve the stability that arc voltage is conducive to plasma jet.Because current plasma gun adopts pair of electrodes structure mostly, improve arc voltage and be restricted, thus cause less stable.The utility model just proposes to overcome above-mentioned shortcoming single anode is divided into basic anode and auxiliary anode two parts, centre in addition insulator forms double anode, being drawn by electric arc causes on auxiliary anode, improve arc voltage, the heat energy distribution of plasma is made to be partial to jet pipe outside, thus the plasma temperature distribution in change spray gun, improve the stability of plasma.The utility model realizes cathode moving freely in axis by screw-driven simultaneously, to regulate cathode and anode spacing, realizes the adjustability of spray gun input power under identical operating current.
The technical solution realizing the utility model object is:
The double anode arc heating plasma torch that input power is adjustable, comprises anode, interior insulating sleeve, negative electrode, drive screw, end cap and external insulation sleeve, the anode of spray gun comprises basic anode and the auxiliary anode of coaxial setting, and separated by high-temperature insulation pottery, auxiliary anode is circular ring structure, is arranged on the spout end of basic anode, and the angle of flare of auxiliary anode perforate also will match with the angle of flare of basic anode, interior insulating sleeve gap is arranged in external insulation sleeve cavity, one end of interior insulating sleeve is fixed with basic anode, the other end has two symmetrical end pin, hold on the relative face of pin for two and be symmetrical arranged slide block, the end pin of interior insulating sleeve and end cap are connected, drive screw and end cap are rotatably assorted, and it is spacing in the axial direction by the position limiting convex ring in drive screw circumference, one end that drive screw stretches out end cap is drive screw release handle, negative electrode one end is the negative electrode water-cooled cavity of inner hollow, the other end is the driving screw coordinated with drive screw, chute on negative electrode outer wall coordinates with skid, negative electrode water-cooled cavity passes through negative electrode, water-cooling channel on interior insulating sleeve and basic anode and anode water-cooled cavity connects, negative electrode has the cooling water inlet with negative electrode water-cooled cavity connects, basis anode has the coolant outlet with anode water-cooled cavity connects, on negative electrode, the both sides negative electrode outer wall of cooling-water duct coordinates with the inner wall sealing of interior insulating sleeve, external insulation sleeve with interior insulating sleeve has the working gas passage be communicated with, working gas passage is communicated with anode nozzle.
The utility model compared with prior art, its remarkable advantage:
(1) the utility model is switched by double anode, and when spray gun normally works, plasma-arc is at the back segment of anode, and arc length is artificially elongated, and the good stability of spray gun, the life-span is improved.
(2) the utility model is by the input power regulating cathode and anode spacing to regulate spray gun, realizes input power in arc heating plasma torch adjustable from structure.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the adjustable double anode arc heating plasma torch of the utility model input power.
Embodiment
Composition graphs 1:
The double anode arc heating plasma torch that a kind of input power of the utility model is adjustable, comprises anode, interior insulating sleeve 2, negative electrode 3, drive screw 4, end cap 6 and external insulation sleeve 7, the anode of spray gun comprises basic anode 1 and the auxiliary anode 10 of coaxial setting, and separated by high-temperature insulation pottery 9, auxiliary anode 10 is circular ring structure, is arranged on the spout end of basic anode 1, and the angle of flare of auxiliary anode 10 perforate also will match with the angle of flare of basic anode 1, interior insulating sleeve 2 gap is arranged in external insulation sleeve 7 cavity, one end of interior insulating sleeve 2 is fixed with basic anode 1, the other end has two symmetrical end pin, hold on the relative face of pin for two and be symmetrical arranged slide block 2-2, end pin and the end cap 6 of interior insulating sleeve 2 are connected, drive screw 4 and end cap 6 are rotatably assorted, and it is spacing in the axial direction by the position limiting convex ring in drive screw 4 circumference, one end that drive screw 4 stretches out end cap 6 is drive screw release handle 4-1, negative electrode 3 one end is the negative electrode water-cooled cavity 3-5 of inner hollow, the other end is the driving screw 3-3 coordinated with drive screw 4, chute 3-2 on negative electrode 3 outer wall and slide block 2-2 is slidably matched, negative electrode water-cooled cavity 3-5 is by negative electrode 3, interior insulating sleeve 2 is communicated with anode water-cooled cavity 1-4 with the water-cooling channel on basic anode 1, negative electrode 3 has the cooling water inlet 3-4 be communicated with negative electrode water-cooled cavity 3-5, basis anode 1 has the coolant outlet 1-5 be communicated with anode water-cooled cavity 1-4, on negative electrode 3, both sides negative electrode 3 outer wall of cooling-water duct coordinates with the inner wall sealing of interior insulating sleeve 2, external insulation sleeve 7 with interior insulating sleeve 2 has the working gas passage 2-3 be communicated with, working gas passage 2-3 is communicated with anode nozzle 1-1.
Basis anode 1 and auxiliary anode 10 are separated by high-temperature insulation pottery 9, and auxiliary anode is connected on basic anode 1 by screw thread by fixed muffle 11.
Negative electrode 3 has cooled cathode aquaporin 3-1, interior insulating sleeve 2 has interior insulating sleeve cooling-water duct 2-1, basis anode 1 has anode cooling-water duct 1-3, negative electrode water-cooled cavity 3-5 and anode water-cooled cavity 1-4 is successively by cooled cathode aquaporin 3-1, interior insulating sleeve cooling-water duct 2-1 is communicated with anode cooling-water duct 1-3, upper cooled cathode aquaporin 3-1 and interior insulating sleeve cooling-water duct 2-1 joining place are provided with cavity on interior insulating sleeve 2, cooled cathode aquaporin 3-1 is positioned at the scope of cavity at negative electrode 3 motion track axially, interior insulating sleeve 2 inwall of cavity both sides has annular groove, O RunddichtringO 8 is set in annular groove.
The shape of the anode water-cooled cavity 1-4 of basis anode 1 is consistent with nozzle form to match.
Working gas passage 2-3 is communicated to the gas storage cavity in interior insulating sleeve 2, and between gas storage cavity and anode nozzle, circumference evenly arranges gas vent.
The axial cross section of drive screw release handle 4-1 is square.
Operation principle: the double anode arc heating plasma gun that the utility model input power is adjustable, anode 1 and auxiliary anode 10 based on original single anode is divided along vertical axial incision, centre high-temperature insulation pottery 9 is separated, auxiliary anode is connected on basic anode 1 by screw thread by fixed muffle 11, the positive pole of DC power supply connects basic anode 1 and auxiliary anode 10, connect with a transferred arc switch between two parts anode, power cathode access negative electrode 3.When starting working, be energized between basic anode 1 and negative electrode 3, ensure the steady starting the arc.After electric arc working stability, connect auxiliary anode 10 and disconnect basic anode 1, thus arc root attachment position is transformed to auxiliary anode 10 artificially from basic anode 1.
Simultaneously, interior insulating sleeve 2 is connected as a single entity with end cap 6, slide block 2-2 is provided with between the pin of interior insulating sleeve 2 two ends, slide block 2-2 can slide and realize axially activity in the chute 3-2 of negative electrode 3, there is driving screw negative electrode 3 one end, the driving screw of negative electrode 3 is threaded with drive screw 4, by the drive screw release handle 4-1 on specific purpose tool rotary actuation screw rod 4 to drive negative electrode 3, negative electrode 3 is made to move axially to adjust the spacing 1-2 between rifle body inner cathode 3 head and basic anode 1, to regulate the input power of arc heating plasma torch.
External insulation sleeve 7 with interior insulating sleeve 2 has the working gas passage 2-3 be communicated with, for working gas entrance, working gas enters the gas storage cavity of interior insulating sleeve thus, gas storage cavity is evenly distributed with outlet in circumference simultaneously, axially accelerate the annular housing 2-4 be ejected between interior insulating sleeve 2 and negative electrode 3 along negative electrode 3 after gas storage cavity pressurization, cool negative electrode 3 surface simultaneously, enter into anode nozzle 1-1, after ionization, produce the plasma jet of high temperature and high speed.
Embodiment:
Composition graphs 1:
The double anode arc heating plasma torch that input power is adjustable, comprises basic anode 1, interior insulating sleeve 2, negative electrode 3, drive screw 4, end cap 6 and external insulation sleeve 7, high-temperature insulation pottery 9, auxiliary anode 10 and fixed muffle 11; Basis anode 1 and auxiliary anode 10 are separated by high-temperature insulation pottery 9, auxiliary anode is connected on basic anode 1 by screw thread by fixed muffle 11, the positive pole of DC power supply connects anode, connects between two parts anode with a transferred arc switch, power cathode access negative electrode 3.When starting working, be energized between basic anode 1 and negative electrode 3, ensure the steady starting the arc.After electric arc working stability, connect auxiliary anode 10 and disconnect basic anode 1, thus arc root attachment position is transformed to auxiliary anode 10 artificially from basic anode 1.
Interior insulating sleeve 2 gap is arranged in external insulation sleeve 7 cavity, one end of interior insulating sleeve 2 is fixed with basic anode 1, the other end has two symmetrical end pin, hold on the relative face of pin for two and be symmetrical arranged slide block 2-2, end pin and the end cap 6 of interior insulating sleeve 2 are connected, drive screw 4 and end cap 6 are rotatably assorted, and it is spacing in the axial direction by the position limiting convex ring in drive screw 4 circumference, drive screw 4 can only be circled, and can not move axially, one end that drive screw 4 stretches out end cap 6 is drive screw release handle 4-1, the axial cross section of drive screw release handle 4-1 is square, square hole specific purpose tool is coordinated to adjust, negative electrode 3 one end is the negative electrode water-cooled cavity 3-5 of inner hollow, the other end is the driving screw 3-3 coordinated with drive screw 4, chute 3-2 on negative electrode 3 outer wall and slide block 2-2 is slidably matched, during plasma torch work, the interior square hole specific purpose tool using insulating material to make carrys out rotating drive screw rod 4, negative electrode 3 is made to move axially to regulate the negative electrode head in rifle body and the spacing 1-2 between anode, to change the input power of arc heating plasma gun,
Negative electrode water-cooled cavity 3-5 is communicated with anode water-cooled cavity 1-4 with the water-cooling channel on anode 1 by negative electrode 3, interior insulating sleeve 2, negative electrode 3 has the cooling water inlet 3-4 be communicated with negative electrode water-cooled cavity 3-5, anode 1 has the coolant outlet 1-5 be communicated with anode water-cooled cavity 1-4, on negative electrode 3, both sides negative electrode 3 outer wall of cooling-water duct coordinates with the inner wall sealing of interior insulating sleeve 2, external insulation sleeve 7 with interior insulating sleeve 2 has the working gas passage 2-3 be communicated with, working gas passage 2-3 is communicated with anode nozzle 1-1, be specially: negative electrode 3 has cooled cathode aquaporin 3-1, interior insulating sleeve 2 has interior insulating sleeve cooling-water duct 2-1, anode 1 has anode cooling-water duct 1-3, negative electrode water-cooled cavity 3-5 and anode water-cooled cavity 1-4 is successively by cooled cathode aquaporin 3-1, interior insulating sleeve cooling-water duct 2-1 is communicated with anode cooling-water duct 1-3, upper cooled cathode aquaporin 3-1 and interior insulating sleeve cooling-water duct 2-1 joining place are provided with cavity on interior insulating sleeve 2, cooled cathode aquaporin 3-1 is positioned at the scope of cavity at negative electrode 3 motion track axially, interior insulating sleeve 2 inwall of cavity both sides has annular groove, O RunddichtringO 8 is set in annular groove, cooling water enters the negative electrode water-cooled cavity 3-5 of cathode internal from cooling water inlet 3-4, and enter anode water-cooled cavity 1-4 by cooled cathode aquaporin 3-1, interior insulating sleeve cooling-water duct 2-1 and anode cooling-water duct 1-3 successively, and flow out from coolant outlet 1-5, thus formation cooling water recirculation system, form the integration of electrode water-cooled,
Working gas passage 2-3 is communicated to the gas storage cavity in interior insulating sleeve 2, and between gas storage cavity and anode nozzle, circumference evenly arranges eight gas vents; Working gas enters gas storage cavity by working gas passage 2-3, axially accelerate the annular housing 2-4 be ejected between interior insulating sleeve 2 and negative electrode 3 along negative electrode 3 after gas storage cavity pressurization, cool negative electrode 3 surface simultaneously, enter into anode nozzle 1-1, after ionization, produce the plasma jet of high temperature and high speed.
Claims (6)
1. the double anode arc heating plasma torch that input power is adjustable, is characterized in that: comprise anode, interior insulating sleeve (2), negative electrode (3), drive screw (4), end cap (6) and external insulation sleeve (7), the anode of spray gun comprises basic anode (1) and the auxiliary anode (10) of coaxial setting, and separated by high-temperature insulation pottery (9), auxiliary anode (10) is circular ring structure, be arranged on the spout end of basic anode (1), the angle of flare of auxiliary anode (10) perforate also will match with the angle of flare of basic anode (1), interior insulating sleeve (2) gap is arranged in external insulation sleeve (7) cavity, one end of interior insulating sleeve (2) is fixed with basic anode (1), the other end has two symmetrical end pin, hold on the relative face of pin for two and be symmetrical arranged slide block (2-2), end pin and the end cap (6) of interior insulating sleeve (2) are connected, drive screw (4) and end cap (6) are rotatably assorted, and it is spacing in the axial direction by the position limiting convex ring in drive screw (4) circumference, one end that drive screw (4) stretches out end cap (6) is drive screw release handle (4-1), negative electrode (3) one end is the negative electrode water-cooled cavity (3-5) of inner hollow, the driving screw (3-3) of the other end for coordinating with drive screw (4), chute (3-2) on negative electrode (3) outer wall and slide block (2-2) are slidably matched, negative electrode water-cooled cavity (3-5) is by negative electrode (3), interior insulating sleeve (2) is communicated with anode water-cooled cavity (1-4) with the water-cooling channel on basic anode (1), negative electrode (3) has the cooling water inlet (3-4) be communicated with negative electrode water-cooled cavity (3-5), basis anode (1) has the coolant outlet (1-5) be communicated with anode water-cooled cavity (1-4), both sides negative electrode (3) outer wall of the upper cooling-water duct of negative electrode (3) coordinates with the inner wall sealing of interior insulating sleeve (2), external insulation sleeve (7) with interior insulating sleeve (2) has the working gas passage (2-3) be communicated with, working gas passage (2-3) is communicated with anode nozzle (1-1).
2. the double anode arc heating plasma torch that input power according to claim 1 is adjustable, described basic anode (1) and auxiliary anode (10) are separated by high-temperature insulation pottery (9), and auxiliary anode is connected on basic anode (1) by screw thread by fixed muffle (11).
3. the double anode arc heating plasma torch that input power according to claim 1 is adjustable, it is characterized in that: described negative electrode (3) has cooled cathode aquaporin (3-1), interior insulating sleeve (2) has interior insulating sleeve cooling-water duct (2-1), basis anode (1) has anode cooling-water duct (1-3), negative electrode water-cooled cavity (3-5) and anode water-cooled cavity (1-4) are successively by cooled cathode aquaporin (3-1), interior insulating sleeve cooling-water duct (2-1) is communicated with anode cooling-water duct (1-3), upper cooled cathode aquaporin (3-1) and interior insulating sleeve cooling-water duct (2-1) joining place are provided with cavity on interior insulating sleeve (2), cooled cathode aquaporin (3-1) is positioned at the scope of cavity at negative electrode (3) motion track axially, interior insulating sleeve (2) inwall of cavity both sides has annular groove, O RunddichtringO (8) is set in annular groove.
4. the double anode arc heating plasma torch that input power according to claim 1 is adjustable, is characterized in that: the shape of the anode water-cooled cavity (1-4) of described basic anode (1) is consistent with nozzle form to match.
5. the double anode arc heating plasma torch that input power according to claim 1 is adjustable, it is characterized in that: described working gas passage (2-3) is communicated to the gas storage cavity in interior insulating sleeve (2), and between gas storage cavity and anode nozzle, circumference evenly arranges gas vent.
6. the double anode arc heating plasma torch that input power according to claim 1 is adjustable, is characterized in that: the axial cross section of described drive screw release handle (4-1) is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622320.0U CN204887664U (en) | 2015-08-18 | 2015-08-18 | Two anode arc of input power adjustable add hot plasma spray gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622320.0U CN204887664U (en) | 2015-08-18 | 2015-08-18 | Two anode arc of input power adjustable add hot plasma spray gun |
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| CN204887664U true CN204887664U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520622320.0U Expired - Fee Related CN204887664U (en) | 2015-08-18 | 2015-08-18 | Two anode arc of input power adjustable add hot plasma spray gun |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513198A (en) * | 2016-08-30 | 2017-03-22 | 沈裕祥 | Air plasma monofilament wire and powder composite spray gun |
| CN106714437A (en) * | 2015-08-18 | 2017-05-24 | 南京理工大学 | Input-power-adjustable dual-anode arc heating plasma torch |
| CN110505747A (en) * | 2019-09-05 | 2019-11-26 | 河北宝炬新材料科技有限公司 | A kind of laminar flow electric arc plasma generator |
-
2015
- 2015-08-18 CN CN201520622320.0U patent/CN204887664U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714437A (en) * | 2015-08-18 | 2017-05-24 | 南京理工大学 | Input-power-adjustable dual-anode arc heating plasma torch |
| CN106513198A (en) * | 2016-08-30 | 2017-03-22 | 沈裕祥 | Air plasma monofilament wire and powder composite spray gun |
| CN110505747A (en) * | 2019-09-05 | 2019-11-26 | 河北宝炬新材料科技有限公司 | A kind of laminar flow electric arc plasma generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20170818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |