CN207309175U - A kind of axial admission passage of plasmatorch - Google Patents
A kind of axial admission passage of plasmatorch Download PDFInfo
- Publication number
- CN207309175U CN207309175U CN201720998347.9U CN201720998347U CN207309175U CN 207309175 U CN207309175 U CN 207309175U CN 201720998347 U CN201720998347 U CN 201720998347U CN 207309175 U CN207309175 U CN 207309175U
- Authority
- CN
- China
- Prior art keywords
- plasmatorch
- electrode
- cavity
- electrode sleeve
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Plasma Technology (AREA)
Abstract
The present utility model is related to a kind of axial admission passage of plasmatorch, belongs to arc plasma torch field.The passage is located in coreless armature set, is made of electrode sleeve and interelectrode cavity, the gas that top importing is covered from coreless armature can be exported by electrode sleeve end and flowed into plasmatorch cavity.The channel roof and bottom section do not contact the cavity formed by electrode outer surface and electrode sleeve inner surface and form vertically, and central region partly contacts the cavity formed by electrode outer surface and electrode sleeve inner surface and forms vertically, and the cross-sectional area in the channel middle region is less than the cross-sectional area in top and bottom region.It is much larger than from the gas flow rates of electrode sleeve end outflow from the flowing velocity at the top of electrode sleeve during air inlet, swiftly flowing air-flow is conducive to the compression of electric arc and the enhancing of electric arc fuel factor at nozzle, gas is evenly distributed in flow process at the same time, is conducive to improve the stability of electric arc.
Description
Technical field
The present utility model is related to a kind of axial admission passage of plasmatorch, belongs to arc plasma torch field.
Background technology
Compression plasma arc is to realize " mechanical compress effect ", " hot compression via plasmatorch compared to free plasma arc
Effect " and " from magnetic compression effect " triple pinch effects and the compression arc of high-energy that obtains, the energy of Yin Qigao extensively should
For welding, spraying, cutting, quenching and the material processing field such as built-up welding.Mechanical compress effect is mainly to utilize plasmatorch
Nozzle carrys out restriction arc column diameter, improves its energy density；Thermo-squeezing effect is also referred to as fluid compression effect, is to utilize air-flow or water
The cooling effect of stream causes electric arc to be compressed, and the pressure and flow velocity of gas are higher, are more conducive to the compression of electric arc.
The common inlet channel of plasmatorch have it is axial, radially and tangentially three kinds, axially and radially inlet channel is to wait
Air admission hole is opened up on ion torch cavity directly to introduce gas into cavity, gas is axially flowed along cavity in the cavity；Tangentially into
Gas channel gas enter gas distribution ring after being imported by the air admission hole on cavity, and swirling eddy is formed after gas distribution ring outflow
The rotational flow along cavity.Gas is only obtained higher along during cavity axial direction flowing using higher throughput or admission pressure
Gas flow rate preferable thermo-squeezing effect could be obtained at nozzle, but high flow rate easily makes gas in plasmatorch cavity
Skewness when inside flowing vertically, influences the stability of electric arc.And gas along cavity rotational flow when, gas flow is smaller
When can obtain higher flow velocity, it is preferable to the compression effectiveness of electric arc, gas in the cavity flow at high speed when distribution it is also more uniform,
The stability of electric arc is preferable.Therefore, compared with tangential admission passage, axially and radially application of the inlet channel on plasmatorch
It is less.
The content of the invention
When the purpose of the present utility model is to overcome existing plasmatorch axial admission channel inlet, air-flow is along chamber
Body axial high speed flow when in plasmatorch cavity skewness so as to influence arc stability the shortcomings that, and propose one
The axial admission passage of kind plasmatorch.
Technical solution is as follows used by the present utility model：
A kind of axial admission passage of plasmatorch, which is located in coreless armature set, by electrode sleeve and interelectrode
Cavity is formed, and the gas that top importing is covered from coreless armature can be exported by electrode sleeve end and flowed into plasmatorch cavity.
The channel roof and bottom section do not contact the cavity formed by electrode outer surface and electrode sleeve inner surface and form vertically, and are somebody's turn to do
Channel middle region partly contacts the cavity formed by electrode outer surface and electrode sleeve inner surface and forms vertically, and in the passage
The cross-sectional area in portion region is less than the cross-sectional area in top and bottom region.
After using the above scheme, advantage of the present utility model is：
Plasmatorch axial admission passage of the present utility model to flowing through gas therein there is compression and acceleration to make
With.The passage is imported from the top that coreless armature covers using less gas flow, you can gas is flowed out from the channel end
When with higher flowing velocity.Swiftly flowing air-flow is conducive to the compression of electric arc and the enhancing of electric arc fuel factor at nozzle.
Axially flowed to when gas is flowed out from electrode sleeve end at the same time along electrode outer surface in nozzle, gas flows between electrode and nozzle
High directivity, is evenly distributed, and is conducive to improve the stability of electric arc.
Brief description of the drawings
Fig. 1 prior art plasmatorch axial admission channel design schematic diagrames.
The axial admission channel design schematic diagram of Fig. 2 the present utility model plasmatorch.
The axial admission channel roof region of Fig. 3 (a) the present utility model plasmatorch shows along A-A cross-sectional structures
It is intended to.
The axial admission channel middle region of Fig. 3 (b) the present utility model plasmatorch shows along B-B cross-sectional structures
It is intended to.
The axial admission channel bottom region of Fig. 3 (c) the present utility model plasmatorch shows along C-C cross-sectional structures
It is intended to.
Shown in figure：
1. electrode, 2. electrode sleeves, 3. insulators, 4. torch bodies, 5. water-cooling channels, 6. workpiece, 7. air inlet pipe, 8. tops are empty
Chamber, 9-12. central cavities, 13. bottom cavities.
Embodiment
In order to which the purpose of the present utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing and
Embodiment, is further elaborated the present utility model.
Embodiment 1
The axial admission channel design schematic diagram of plasmatorch of the present utility model is as shown in Fig. 2, the passage is located at
In electrode sleeve 2, it is made of the cavity between electrode sleeve 2 and electrode 1, can be by the gas imported from 2 top of coreless armature set by electrode
The end of set 2 exports and flows into plasmatorch cavity.The inlet channel top area is by 1 outer surface of electrode and electrode sleeve 2
The cavity that surface does not contact formation vertically is formed, the cavity such as Fig. 3（a）In shown in 8；Central region by 1 outer surface of electrode and
The cavity that 2 inner surface of electrode sleeve partly contacts formation vertically is formed, which is such as Fig. 3（b）Shown in 9,10,11 and 12
Four road cavitys；Bottom section does not contact the cavity formed by 1 outer surface of electrode and 2 inner surface of electrode sleeve and forms vertically, the sky
Chamber such as Fig. 3（c）In shown in 13.By its outer surface and 2 inner surface of electrode sleeve, partly electrode sleeve is fixed in contact to electrode 1 vertically
In 2.The cross-sectional area summation of four road cavity 9,10,11 and 12 of middle part is less than apex cavity 8 and the cross-sectional area of bottom cavity 13.
Gas enters apex cavity 8 from air inlet pipe 7 by the top of electrode sleeve 2, and gas flow channel cross-sectional area reduces, gas
Body is compressed, gas flow rates increase；Gas exits into four road cavitys 9,10,11 and 12 of middle part, gas from apex cavity 8
Body flow channel cross product further reduces, and gas is compressed again, and gas flow rates further increase；Gas is therefrom
Flowed out during portion's cavity 9,10,11 and 12, into bottom cavity 13, the increase of gas flow channel cross-sectional area, gas flow rates
Reduce；Gas eventually passes through bottom cavity 13 and is flowed out by 2 end of electrode sleeve and axially flow into plasmatorch along electrode outer surface
In cavity.
Speed when gas is finally flowed out from 2 end of electrode sleeve is far above speed when flowing into 2 top of electrode sleeve from air inlet pipe 7
Degree.Swiftly flowing air-flow is conducive to the compression of electric arc and the enhancing of electric arc fuel factor at nozzle, while gas is in electrode and spray
Flow direction property is strong between mouth, is evenly distributed, and is conducive to improve the stability of electric arc.
As it will be easily appreciated by one skilled in the art that the foregoing is merely preferred embodiment of the present utility model,
It is not intended to limit the utility model invention, all any modifications made within spirit of the present utility model and principle,
Equivalent substitution and improvement etc., should be included within protection domain of the present utility model.
Claims (4)
- A kind of 1. axial admission passage of plasmatorch, it is characterised in that：The passage is located in coreless armature set, by electrode sleeve and Interelectrode cavity is formed, and the gas that top importing is covered from coreless armature can be exported by electrode sleeve end and be flowed into plasmatorch In cavity.
- A kind of 2. axial admission passage of plasmatorch according to claim 1, it is characterised in that：The channel roof and bottom Portion region does not contact the cavity formed by electrode outer surface and electrode sleeve inner surface and forms vertically.
- A kind of 3. axial admission passage of plasmatorch according to claim 1, it is characterised in that：The channel middle region The cavity formed is partly contacted vertically by electrode outer surface and electrode sleeve inner surface to form.
- A kind of 4. axial admission passage of plasmatorch according to Claims 2 or 3, it is characterised in that：The channel middle The cross-sectional area in region is less than the cross-sectional area in top and bottom region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720998347.9U CN207309175U (en) | 2017-08-10 | 2017-08-10 | A kind of axial admission passage of plasmatorch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720998347.9U CN207309175U (en) | 2017-08-10 | 2017-08-10 | A kind of axial admission passage of plasmatorch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207309175U true CN207309175U (en) | 2018-05-04 |
Family
ID=62435297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720998347.9U Active CN207309175U (en) | 2017-08-10 | 2017-08-10 | A kind of axial admission passage of plasmatorch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207309175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382572A (en) * | 2017-08-10 | 2019-02-26 | 武汉华材表面科技有限公司 | A kind of axial admission channel of plasmatorch |
-
2017
- 2017-08-10 CN CN201720998347.9U patent/CN207309175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382572A (en) * | 2017-08-10 | 2019-02-26 | 武汉华材表面科技有限公司 | A kind of axial admission channel of plasmatorch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205414417U (en) | Device of plasma atomizing preparation high performance powder for vibration material disk | |
| CN201986251U (en) | Arc plasma torch with Laval negative pole structure | |
| CN104353838B (en) | The ultrasonic nebulization jet nozzle of a kind of secondary laval and hartmann structure fusion | |
| CN104368820A (en) | Laval and hartmann structure integrated type supersonic-speed atomizing nozzle | |
| CN107900367A (en) | A kind of Novel atomizer of 3D printing titanium or titanium alloy powder | |
| CN207309175U (en) | A kind of axial admission passage of plasmatorch | |
| CN207251996U (en) | A kind of magnetic rotation arc plasma generator | |
| CN104139242A (en) | Strip steel laser cutting head | |
| CN104209644A (en) | Improved secondary compression type plasma welding gun | |
| CN109014224A (en) | Eliminate the gas-atomized powder equipment reaction chamber and gas-atomized powder equipment of satellite powder | |
| CN103874313A (en) | Ultrasonic plasma gun feeding powder internally | |
| CN102828177B (en) | Integrated coaxial nozzle for laser cladding | |
| CN107042310A (en) | A kind of gas atomizing nozzle | |
| CN1887443A (en) | Cold air powered spraying method and device | |
| CN108436093A (en) | A kind of Supersonic atomizer preparing iron-based spherical metal powder using crucible gas atomization | |
| CN106077920A (en) | A kind of tungsten electrode internal water cooling TIG welding gun based on negative electrode pinch effect | |
| CN105862029A (en) | Coaxial laser cladding spray nozzle | |
| CN203725046U (en) | Plasma disinfectant preparing equipment | |
| CN103624970A (en) | Film pipe internal circulation water cooling device of film blowing machine | |
| CN109382572A (en) | A kind of axial admission channel of plasmatorch | |
| CN104353839B (en) | A kind of single-stage merges the ultrasonic nebulization jet nozzle of laval Yu hartmann structure | |
| CN207952637U (en) | A kind of integrated apparatus of sensing heating and radio frequency plasma combined atomizing nozzle | |
| CN102744173A (en) | Solid particle pre-whirl mixing pneumatic acceleration device and method | |
| TW474120B (en) | Improved plasma torch | |
| CN201411486Y (en) | Plasma arc and powder particle flow protection device for plasma spray gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |