CN202310264U - Negative electrode assembly of low-temperature plasma generator - Google Patents
Negative electrode assembly of low-temperature plasma generator Download PDFInfo
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- CN202310264U CN202310264U CN2011203793825U CN201120379382U CN202310264U CN 202310264 U CN202310264 U CN 202310264U CN 2011203793825 U CN2011203793825 U CN 2011203793825U CN 201120379382 U CN201120379382 U CN 201120379382U CN 202310264 U CN202310264 U CN 202310264U
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Abstract
The utility model discloses a negative electrode assembly of a low-temperature plasma generator, comprising a negative electrode shell, a negative electrode and a negative electrode conducting rod, wherein two ends of the negative electrode shell are arranged in an opened mode; a cavity is arranged in the negative electrode; the negative electrode conducting rod is in a cavity threaded connection with the negative electrode, and then fixes a negative electrode arc controller; the negative electrode arc controller comprises a cyclonic piece body which is provided with a center effuser along an axis; the cyclonic piece body comprises a cyclonic cylindrical section and a cyclonic conic section which is formed by contracting and extending along the cylindrical section, and at the same time the outside surface of the cyclonic cylindrical section is provided with a spiral groove; both the center effuser and the spiral groove are connected with a negative electrode inlet chamber through a flow through hole arranged on the negative electrode conducting rod; and the large end of the center effuser is adjacent to the negative electrode conducting rod. Therefore, the negative electrode assembly of a low-temperature plasma generator can promote the compressed air in the negative electrode cavity to rotate so as to make the arc of the negative electrode cavity rotate to ceaselessly change the position of the arcing point of the arc, thus significantly prolonging the service life of the negative electrode.
Description
Technical field
The utility model relates to a kind of cathode assembly of low-temperature plasma generator.
Background technology
In the prior art, plasma generator commonly used, of Chinese patent 200620013110.2, the DC power supply that generally comprises negative electrode, anode, arc-initiating device and negative electrode, anode are connected; Negative electrode is connected to form by replaceable cathode taps and negative electrode conducting rod, and replaceable cathode taps is the cylinder barrel shaped structure, and is processed with the water-cooled cannelure on this replaceable cathode taps; Anode is hollow cylindrical shell, and set inside is Rafael nozzle formula structure, and the periphery then forms the water-cooled cannelure with the stainless steel sleeve tube.Such plasma generator structure is huge, complicated; Inconvenient maintenance; Simultaneously, the point-to-point generation electric arc mode that this plasma generator adopts is prone to cause electrode damage, has influenced the useful life of anode and cathode.
Therefore; Be necessary to provide a kind of plasma generator of new structure, through anode assemblies structure, cathode component architecture and the anode assemblies of change plasma generator and the syndeton between the cathode assembly, to simplify the structure of plasma generator; Be convenient to maintenance, practice thrift cost.
The utility model content
The utility model is to the deficiency of prior art; A kind of cathode assembly of low-temperature plasma generator is provided; It can impel the compressed air that gets into cathode internal cavity to rotate; Thereby cause the electric arc of cathode internal cavity to rotate, ceaselessly to change the position of electric arc arcing point, the useful life of greatly having improved negative electrode.
For realizing above technical purpose, the utility model will be taked following technical scheme:
A kind of cathode assembly of low-temperature plasma generator, comprise the open at both ends setting cathode shell, in establish the negative electrode and the negative electrode conducting rod of cavity; The upper end of cathode shell and the sealing-in of negative electrode top cover, and the internal face of cathode shell is processed with the water-cooled cannelure; The two ends of negative electrode outer wall respectively with the water-cooled cannelure up and down both sides flange accordingly liquid sealing be connected; One end of negative electrode conducting rod stretches out behind the negative electrode top cover fastening with the cathode connection plate; The other end then places the inner chamber of negative electrode; And negative electrode conducting rod, negative electrode, cathode shell and negative electrode top cover assembling back form the cathode inlet chamber; And offer accordingly on the cathode shell and air inlet that the cathode inlet chamber connects and water inlet and the delivery port that is communicated with the water-cooled cannelure respectively, the inner chamber of said negative electrode conducting rod and negative electrode is through after being threaded fixing the cathode arc controller; Said cathode arc controller comprises eddy flow spare body, and this eddy flow spare body offers core jet pipe along axis; Said eddy flow spare body comprises the eddy flow cylindrical section and extends the eddy flow conical section that forms along the end contraction of cylindrical section that simultaneously, the outer surface of said eddy flow cylindrical section is offered helicla flute; Said core jet pipe, helicla flute all are communicated with the cathode inlet chamber through the water conservancy diversion through hole of offering on the negative electrode conducting rod; And core jet pipe is by boring the section jet pipe and forming along the shell of column jet pipe that awl section jet pipe carefully holds extension to form; Said shell of column jet pipe is opened in the eddy flow conical section; Awl section jet pipe then is opened in the eddy flow cylindrical section, and the big end of core jet pipe is adjacent with the negative electrode conducting rod.
Said negative electrode outer wall is separated into cooling water intake chamber and the cooling water water-supplying chamber that is communicated with space between the water-cooled cannelure through the negative electrode water jacket is set; And an end of negative electrode water jacket is threaded with the water-cooled cannelure, and water inlet is communicated with the cooling water intake chamber, and delivery port then is communicated with cooling water water-supplying chamber.
Negative electrode upper shell and negative electrode lower house are arranged in said cathode shell split, and negative electrode upper shell and negative electrode lower house are integrally welded through argon arc welding; One end of said negative electrode water jacket and negative electrode upper shell are through being threaded.
The axis of said air inlet, delivery port all with the axis normal setting of negative electrode, the axis tangential of the axis of water inlet and negative electrode is provided with.
The axis of said water conservancy diversion through hole and the axis of negative electrode are obliquely installed, and the water conservancy diversion through hole is at least 3 through holes that are uniformly distributed with ringwise.
According to above technical scheme, can realize following beneficial effect:
1, the utility model adopts the cooperation of cathode arc controller and negative electrode conducting rod; Make the compressed air in the inlet plenum pass through the water conservancy diversion through hole on the negative electrode conducting rod, the core jet pipe of cathode arc controller and the inner chamber that the circumference helicla flute gets into negative electrode, form the air-flow of rotation.With after the plasma generator anode assemblies cooperates arcing, the air-flow of this rotation can make the electric arc of cathode internal cavity produce rotation, the position of the change electric arc arcing point that does not stop, and when producing low temperature plasma, the useful life of greatly having improved negative electrode.
2, the utility model adopts the negative electrode water jacket that cooling water intake chamber and cooling water water-supplying chamber are separated.Cooling water gets into the cooling water intake chamber by the water inlet tangential, and target evenly after the cooling, is discharged by cooling water outlet from top to bottom, and therefore, the utility model can improve cooling effect effectively, further reduces the ablation of negative electrode, improves negative electrode useful life.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is that the A of the utility model is to sketch map;
Fig. 3 is the structure for amplifying sketch map of the utility model cathode arc controller;
Fig. 4 is the structure for amplifying sketch map of the utility model negative electrode conducting rod;
Fig. 5 is that the B of Fig. 4 is to structural representation;
Wherein: negative electrode 1; Negative electrode water jacket 2; Negative electrode lower house 3; Negative electrode upper shell 4; Negative electrode top cover 5; Cathode connection plate 6; Negative electrode conducting rod 7; Water conservancy diversion through hole 71; Nut 8; Rubber seal 9; Pad 10; O RunddichtringO 11; Cathode arc controller 12; Helicla flute 121; Core jet pipe 122; O RunddichtringO 13.
Embodiment
Accompanying drawing discloses the structural representation of the related preferred embodiment of the utility model without limitation; Below will combine accompanying drawing that the technical scheme of the utility model at length is described.
Shown in Fig. 1 to 5, the cathode assembly of the said low-temperature plasma generator of the utility model, comprise the open at both ends setting cathode shell, in establish the negative electrode and the negative electrode conducting rod of cavity; The upper end of cathode shell and the sealing-in of negative electrode top cover, and the internal face of cathode shell is processed with the water-cooled cannelure; The two ends of negative electrode outer wall respectively with the water-cooled cannelure up and down both sides flange accordingly liquid sealing be connected; One end of negative electrode conducting rod tightens up with the cathode connection plate after stretching out the negative electrode top cover; The other end then places the inner chamber of negative electrode; And negative electrode conducting rod, negative electrode, cathode shell and negative electrode top cover assembling back form the cathode inlet chamber; And offer accordingly on the cathode shell and air inlet that the cathode inlet chamber connects and water inlet and the delivery port that is communicated with the water-cooled cannelure respectively, the inner chamber of said negative electrode conducting rod and negative electrode is through after being threaded fixing the cathode arc controller; Said cathode arc controller comprises eddy flow spare body, and this eddy flow spare body offers core jet pipe along axis; Said eddy flow spare body comprises the eddy flow cylindrical section and extends the eddy flow conical section that forms along the end contraction of cylindrical section that simultaneously, the outer surface of said eddy flow cylindrical section is offered helicla flute; Said core jet pipe, helicla flute all are communicated with the cathode inlet chamber through the water conservancy diversion through hole of offering on the negative electrode conducting rod; And core jet pipe is by boring the section jet pipe and forming along the shell of column jet pipe that awl section jet pipe carefully holds extension to form; Said shell of column jet pipe is opened in the eddy flow conical section; Awl section jet pipe then is opened in the eddy flow cylindrical section, and the big end of core jet pipe is adjacent with the negative electrode conducting rod.Therefore, the utility model adopts the cathode arc controller, and a part of compressed air that makes air inlet feed is handled through the further compression-expansion of core jet pipe, goes out from the central-injection of eddy flow spare body; The helicla flute rotation that another compressed air is then offered along eddy flow spare body outer rim, both combinations can ceaselessly change the radially position of electric arc arcing point of negative electrode, avoid the fixed point scaling loss on electric arc arcing point surface, the useful life of greatly improving negative electrode.Said negative electrode outer wall is separated into cooling water intake chamber and the cooling water water-supplying chamber that is communicated with space between the water-cooled cannelure through the negative electrode water jacket is set; And an end of negative electrode water jacket is threaded with the water-cooled cannelure, and water inlet is communicated with the cooling water intake chamber, and delivery port then is communicated with cooling water water-supplying chamber.Negative electrode upper shell and negative electrode lower house are arranged in said cathode shell split, and negative electrode upper shell and negative electrode lower house are integrally welded through argon arc welding; One end of said negative electrode water jacket be arranged at the negative electrode upper shell and be threaded.The axis of said air inlet, delivery port all with the axis normal setting of negative electrode, the axis tangential of the axis of water inlet and negative electrode is provided with.The axis of said water conservancy diversion through hole and the axis of negative electrode are obliquely installed, and the water conservancy diversion through hole is at least 3 through holes that are uniformly distributed with ringwise.
Therefore; The cathode assembly of the said low-temperature plasma generator of the utility model mainly is made up of negative electrode 1, negative electrode water jacket 2, negative electrode lower house 3, negative electrode upper shell 4, negative electrode top cover 5, cathode connection plate 6, negative electrode conducting rod 7, nut 8, rubber seal 9, pad 10, O RunddichtringO 11,13, cathode arc controller 12.
Negative electrode upper shell 4, negative electrode top cover 5, negative electrode conducting rod 7 form the cathode inlet chamber with negative electrode 1 assembling back, and compression is empty to get into inlet plenum through air inlet a.
The groove of negative electrode upper shell 4 inner surfaces and the outer surface of negative electrode 1 form the cooling water intake chamber, and the groove of negative electrode lower house 3 inner surfaces and the outer surface of negative electrode water jacket 2 form cooling water water-supplying chamber.
Negative electrode water jacket 2 and negative electrode upper shell 4 are through being threaded; Negative electrode lower house 3 welds through argon arc welding with negative electrode upper shell 4; Negative electrode upper shell 4 and negative electrode top cover 5 are connected through bolt; Negative electrode conducting rod 7 and negative electrode 1 are through being threaded, and the upper end and the negative electrode upper shell 4 of the lower end of negative electrode 1 and negative electrode lower house 3, negative electrode 1 all adopt matched in clearance, and seal through O RunddichtringO 11,13.
Compressed air in the inlet plenum forms the air-flow of rotation through the inner chamber of the entering of the helicla flute on water conservancy diversion through hole, cathode arc controller 12 core jet pipes and the circumference on the negative electrode conducting rod 7 negative electrode 1.
With after the plasma generator anode assemblies cooperates arcing, the air-flow of this rotation can make the electric arc of negative electrode 1 inner chamber produce rotation, the position of the change electric arc arcing point that does not stop, and when producing low temperature plasma, the useful life of having improved negative electrode 1 greatly.
Negative electrode water jacket 2 separates cooling water intake chamber and cooling water water-supplying chamber, and whole cooling water chamber seals through O RunddichtringO 11,13.Cooling water gets into the cooling water intake chamber by water inlet b tangential, and target 1 is discharged by cooling water outlet c after evenly cooling off from top to bottom.
In sum, the utlity model has following advantage:
1, cooperates with the low-temperature plasma generator anode assemblies, can produce low temperature plasma;
2, get into the compressed air generation rotation of negative electrode 1 inner chamber through cathode arc controller 12, change the position of electric arc arcing point, in the useful life of improving negative electrode 1 greatly, produce low temperature plasma simultaneously;
3, get into the cooling water of cooling water intake chamber through cooling water inlet b tangential, target cools off uniformly, improves cooling effect;
Through negative electrode water jacket 2 cooling water that gets into and cooled hot water are isolated, improve cooling effect, help the even inflow and the discharge of cooling water simultaneously.
Claims (5)
1. the cathode assembly of a low-temperature plasma generator, comprise the open at both ends setting cathode shell, in establish the negative electrode and the negative electrode conducting rod of cavity; The upper end of cathode shell and the sealing-in of negative electrode top cover, and the internal face of cathode shell is processed with the water-cooled cannelure; The two ends of negative electrode outer wall respectively with the water-cooled cannelure up and down both sides flange accordingly liquid sealing be connected; One end of negative electrode conducting rod tightens up with the cathode connection plate after stretching out the negative electrode top cover; The other end then places the inner chamber of negative electrode; And negative electrode conducting rod, negative electrode, cathode shell and negative electrode top cover assembling back form the cathode inlet chamber; And offer accordingly on the cathode shell and air inlet that the cathode inlet chamber connects and water inlet and the delivery port that is communicated with the water-cooled cannelure respectively, it is characterized in that: the inner chamber of said negative electrode conducting rod and negative electrode is through after being threaded fixing the cathode arc controller; Said cathode arc controller comprises eddy flow spare body, and this eddy flow spare body offers core jet pipe along axis; Said eddy flow spare body comprises the eddy flow cylindrical section and extends the eddy flow conical section that forms along the end contraction of cylindrical section that simultaneously, the outer surface of said eddy flow cylindrical section is offered helicla flute; Said core jet pipe, helicla flute all are communicated with the cathode inlet chamber through the water conservancy diversion through hole of offering on the negative electrode conducting rod; And core jet pipe is by boring the section jet pipe and forming along the shell of column jet pipe that awl section jet pipe carefully holds extension to form; Said shell of column jet pipe is opened in the eddy flow conical section; Awl section jet pipe then is opened in the eddy flow cylindrical section, and the big end of core jet pipe is adjacent with the negative electrode conducting rod.
2. according to the cathode assembly of the said low-temperature plasma generator of claim 1, it is characterized in that: said negative electrode outer wall is separated into cooling water intake chamber and the cooling water water-supplying chamber that is communicated with space between the water-cooled cannelure through the negative electrode water jacket is set; And an end of negative electrode water jacket is threaded with the water-cooled cannelure, and water inlet is communicated with the cooling water intake chamber, and delivery port then is communicated with cooling water water-supplying chamber.
3. according to the cathode assembly of the said low-temperature plasma generator of claim 2, it is characterized in that: negative electrode upper shell and negative electrode lower house are arranged in said cathode shell split, and negative electrode upper shell and negative electrode lower house are integrally welded through argon arc welding; One end of said negative electrode water jacket and negative electrode upper shell are through being threaded.
4. according to the cathode assembly of claim 1 or 2 said low-temperature plasma generators, it is characterized in that: the axis of said air inlet, delivery port all with the axis normal setting of negative electrode, the axis tangential of the axis of water inlet and negative electrode is provided with.
5. according to the cathode assembly of claim 1 or 2 said low-temperature plasma generators, it is characterized in that: the axis of said water conservancy diversion through hole and the axis of negative electrode are obliquely installed, and the water conservancy diversion through hole is at least 3 through holes that are uniformly distributed with ringwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203793825U CN202310264U (en) | 2011-09-28 | 2011-09-28 | Negative electrode assembly of low-temperature plasma generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203793825U CN202310264U (en) | 2011-09-28 | 2011-09-28 | Negative electrode assembly of low-temperature plasma generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202310264U true CN202310264U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203793825U Expired - Fee Related CN202310264U (en) | 2011-09-28 | 2011-09-28 | Negative electrode assembly of low-temperature plasma generator |
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| Country | Link |
|---|---|
| CN (1) | CN202310264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104302086A (en) * | 2014-10-31 | 2015-01-21 | 四川大学 | Plasma generator gas inlet structure with gas compression effect |
-
2011
- 2011-09-28 CN CN2011203793825U patent/CN202310264U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104302086A (en) * | 2014-10-31 | 2015-01-21 | 四川大学 | Plasma generator gas inlet structure with gas compression effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20130928 |