The electrode structure of telescopic striking
Technical field
The present invention relates to plasma apparatus, particularly relate to a kind of electrode of arc plasma device.
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, high temperature is produced through mutually colliding, temperature can reach more than several ten thousand degree, when processed chemical industry pernicious gas is subject to the plasma attack of HTHP, its molecule, atom will reconfigure and generate new material, thus make harmful substance become innocuous substance.
The plasma device researching and developing a kind of its target product application rational in infrastructure, applicable is the task of this area research staff, and improving the efficiency of plasma device, reducing power consumption is the target that this area research staff pursues.
Summary of the invention
The object of this invention is to provide a kind of plasma device of applicable process chemical industry pernicious gas, and make apparatus structure advantages of simple and efficiency high, to reduce power consumption.
The electrode structure of a kind of telescopic striking of the present invention, comprises disk electrode 1, supporter 4, electromagnetic drive component and punching and leads tight bar 2, it is characterized in that there is through hole at the center of disk electrode 1, the outer end fluted 20 of disk electrode 1; Supporter 4 is rotary structure, has through via hole at the wall body center of supporter 4 rear end; Electromagnetic drive component is made up of solenoid 9 and coil rack 8, and the center of coil rack 8 is through duct, has drive rod 7 in through duct; It is hollow-core construction that punching leads tight bar 2, and punching leads the telescopic chute of the interior space formation arc electrode of tight bar 2; Disk electrode 1 is arranged on the front end of supporter 4, lead tight bar 2 by punching and disk electrode 1 and supporter 4 are carried out compact siro spinning technology, space looping cooling chamber 17 between disk electrode 1 and supporter 4, punching leads the inner ring wall body of the body of rod looping cooling chamber 17 of tight bar 2, the interior space that groove 20 and the punching of disk electrode 1 outer end lead tight bar 2 is passed through mutually and is communicated with, and electromagnetic drive component is arranged on the rear end of supporter 4.During concrete enforcement, arc electrode is arranged in the body of rod of drive rod 7 front portion, and arc electrode leads the interior space of tight bar 2 through punching, extended or retracted from the groove 20 of disk electrode 1 outer end.
In the present invention, there is interior hexagonal major part 2-1 the front end of leading tight bar 2 in punching, and tight spiral shell head 2-2 is led at the rear portion of leading tight bar 2 in punching; In electrode structure, have relaying nut 5 and adapter sleeve 6, electromagnetic drive component is arranged on the rear end of supporter 4 by adapter sleeve 6 and relaying nut 5; Brush 13 is had in the body of relaying nut 5; Have cooling annular groove 18 in the inner side of disk electrode 1, cooling annular groove 18 communicates with annular cooling chamber 17, and annular cooling chamber 17 has cooling water inlet 16 to access and coolant outlet 3 picks out; The wall body front end face of supporter 4 has the bulge loop 4-2 acting on sealing; Seal groove 4-1 is had in the through duct at wall body center, supporter 4 rear end; Drive rod 7 is hollow-core construction, in the middle part of drive rod 7 and in the hollow rod body at rear portion, have spaced magnetic bead 10 and spacer beads 12; Location iron hoop 11 is had in the rear end of coil rack 8; The rear portion of leading tight bar 2 in punching has electric interfaces 14 to access; Drive rod 7 has for stretching out spacing and that indentation is spacing spacing termination 7-1.
In plasma device, plasma arc produces between two main electrodes, under the condition that energy maintain plasma arc stability runs between two main electrodes, space length between two main electrodes is larger, the stroke of plasma arc is longer, the chance that its electronics collides mutually and number of times will be more, its energy will be larger, when for the treatment of industrial harmful gas, pernicious gas is subject to the intensity of HTHP plasma attack can be larger, and it reconfigures the efficiency becoming innocuous substance can be higher.The present invention utilizes arc electrode to carry out striking, and first stretch out the striking Distance Shortened that arc electrode makes between two main electrodes, to reduce striking voltage, arc electrode of then retracting, makes to produce high-temperature plasma electric arc between two main electrodes.Two described main electrodes are the electrode outside arc electrode.The present invention takes the measure of telescopic striking to be extended to make the space length between two of plasma device main electrodes, strengthens the energy of high-temperature plasma electric arc, improves efficiency and saves electric energy.
When plasma device runs, produce the arc root of plasma arc on the outer face of disk electrode 1, be sintered on disk electrode 1 in order to avoid arc electrode and make arc electrode lose Telescopic, the present invention arranges groove 20 in the outer end of disk electrode 1, the arc electrode head after striking effect is completed and have certain space length between disk electrode 1 wall body.
In above-mentioned invention, spaced magnetic bead 10 and spacer beads 12 is had in the middle part of drive rod 7 and in the hollow rod body at rear portion, during concrete enforcement, magnetic bead 10 selects permanent magnet material, and spacer beads 12 selects nonmagnetic substance, and the polarity of each magnetic bead carries out series aiding connection setting, when arc electrode need be stretched out, carry out forward energising to solenoid, the electromagnetic force that solenoid center is produced is carried out positive direction with the magnetic line of force of magnetic bead in drive rod 7 and is coordinated, drive rod 7 forward; When need retract arc electrode time, be oppositely energized to solenoid, the electromagnetic force that solenoid center is produced is carried out opposite direction with the magnetic line of force of magnetic bead in drive rod 7 and is coordinated, and drive rod 7 is moved backward.The present invention has location iron hoop 11 in the rear end of coil rack 8, utilize the magnetic force of magnetic bead 10, drive rod 7 is located, thus make arc electrode be positioned at extended position or retracted position.The present invention utilizes solenoid and drive rod 7 to drive arc electrode, does not have mechanical motion mechanism, makes structure simple, and reliable operation.The present invention is only energized to solenoid in the process that drive rod 7 need be made to move ahead or retreat, and after drive rod 7 is located, just to solenoid power-off, can realize the life-span saved electric energy and extend solenoid.
The invention has the beneficial effects as follows: be applicable to applying in process industrial harmful gas field, the measure of telescopic striking is taked to be extended to make the space length between two of plasma device main electrodes, strengthen the energy of high-temperature plasma electric arc, improve efficiency and save electric energy.The present invention utilizes solenoid and interval arranges magnetic bead measure and carries out stretching out or retracting to drive arc electrode in drive rod 7, its simple and reasonable, reliable operation.
Accompanying drawing explanation
Fig. 1 is the electrode structural chart of a kind of telescopic striking of the present invention.
Fig. 2 is the schematic diagram of electrode arc striking initial condition of the present invention.
Fig. 3 is the schematic diagram of electrode of the present invention when forming high-temperature plasma electric arc.
In figure: 1. disk electrode, 2. punching leads tight bar, hexagonal major part in 2-1., 2-2. leads tight spiral shell head, 3. coolant outlet, 4. supporter, 4-1. seal groove, 4-2. bulge loop, 5. relaying nut, 5-1. connects spiral shell head, 6. adapter sleeve, 7. drive rod, the spacing termination of 7-1., 8. coil rack, the spacing rank of 8-1., 8-2. installs spiral shell head, 9. solenoid, 10. magnetic bead, 11. location iron hoops, 12. spacer beads, 13. brushes, 14. electric interfaces, 15. sealing rings, 16. cooling water inlets, 17. annular cooling chambers, 18. cooling annular grooves, 19. sealing gaskets, 20. grooves, 21. arc electrodes, 22. electrode bars, 23. initial arc, 24. high-temperature plasma electric arcs.
Embodiment
In execution mode shown in embodiment 1 Fig. 1, the electrode structure of telescopic striking comprises disk electrode 1, supporter 4, electromagnetic drive component, punching lead tight bar 2, relaying nut 5 and adapter sleeve 6, wherein, there is through hole at the center of disk electrode 1, the outer end fluted 20 of disk electrode 1, supporter 4 is rotary structure, through via hole is had at the wall body center of supporter 4 rear end, the wall body front end face of supporter 4 has the bulge loop 4-2 acting on sealing, in the through duct at wall body center, supporter 4 rear end, has section to be the seal groove 4-1 of wedge structure, electromagnetic drive component is made up of solenoid 9 and coil rack 8, there is location iron hoop 11 rear end of coil rack 8, the center of coil rack 8 is through duct, drive rod 7 is had in through duct, drive rod 7 is hollow-core construction, in the middle part of drive rod 7 and in the hollow rod body at rear portion, there are spaced magnetic bead 10 and spacer beads 12, have in the front end of drive rod 7 for stretching out spacing and that indentation is spacing spacing termination 7-1, punching leads tight bar 2 for hollow-core construction, and the interior space that punching leads tight bar 2 forms the telescopic chute of arc electrode, and there is interior hexagonal major part 2-1 the front end of leading tight bar 2 in punching, the rear portion body of rod leading tight bar 2 leads tight spiral shell head 2-2 and electric interfaces 14 accesses in punching, the front end of relaying nut 5 has cooperation punching to lead the screw that tight spiral shell head 2-2 is led at tight bar 2 rear portion, and there is connection spiral shell head 5-1 the rear end of relaying nut 5, in the body of relaying nut 5, have brush 13, adapter sleeve 6 is cylindrical structure, respectively has installation screw thread inside the wall body of the rear and front end of adapter sleeve 6, disk electrode 1 is arranged on the front end of supporter 4, punching leads the shaft of tight bar 2 successively through the central through hole of disk electrode 1, supporter 4 rear end wall body central duct and seal groove 4-1, the interior hexagonal major part 2-1 that punching leads tight bar 2 front end is pressed on groove 20 bottom on disk electrode 1, what again the screw of relaying nut 5 front end is tightened on that punching leads tight bar 2 rear portion leads on tight spiral shell head 2-2, disk electrode 1 and supporter 4 is made to carry out compact siro spinning technology, sealing gasket 19 is had between groove 20 bottom that punching leads hexagonal major part 2-1 and disk electrode 1 in tight bar 2, the sealing ring 15 of wedge shape is had in seal groove 4-1, space looping cooling chamber 17 between disk electrode 1 and supporter 4, punching leads the inner ring wall body of the body of rod looping cooling chamber 17 of tight bar 2, cooling annular groove 18 is had in the inner side of disk electrode 1, cooling annular groove 18 communicates with annular cooling chamber 17, annular cooling chamber 17 has cooling water inlet 16 to access and coolant outlet 3 picks out, cooling water inlet 16 is arranged in the wall body on the downside of supporter 4, and coolant outlet 3 is arranged in the wall body on the upside of supporter 4, the interior space that groove 20 and the punching of disk electrode 1 outer end lead tight bar 2 is passed through mutually and is communicated with, the front end of adapter sleeve 6 is arranged on the connection spiral shell head 5-1 of relaying nut 5 rear end with thread connecting mode, have in the front end of coil rack 8 and spiral shell head 8-2 is installed, electromagnetic drive component is arranged on the rear end of adapter sleeve 6 with thread connecting mode, drive rod 7 extends in the interior space of adapter sleeve 6, arc electrode is arranged in the body of rod of drive rod 7 front portion, arc electrode leads the interior space of tight bar 2 through punching, extended or retracted from the groove 20 of disk electrode 1 outer end.In the present embodiment, electric interfaces 14 utilizes punching to lead the metal material of tight bar 2 and disk electrode 1 is electrically connected; Disk electrode 1 selects refractory metal material to make; Punching is led tight bar 2 and is selected ordinary metallic material to make; Supporter 4 selects polytetrafluoroethylmaterial material to make; Arc electrode 21 selects tungsten alloy material to make; Sealing gasket 19 selects the graphite asbestos composite material with electric conductivity to make.
In execution mode shown in embodiment 2 Fig. 2 and Fig. 3, plasma device is made up of the electrode of telescopic striking and electrode bar 22, have between the head end of disk electrode 1 and electrode bar 22 and be applicable to forming high-temperature plasma electric arc and maintaining the space run, wherein, the electrode structure of telescopic striking is basically the same as those in the first embodiment, and repeats no more.The spacing regulating the front end of arc electrode 21 and the head end of electrode bar 22 is 5-30 millimeter.During work, striking voltage and operating voltage is applied between the electrode and electrode bar 22 of telescopic striking, initial discharge is carried out between the head end and the front end of arc electrode 21 of electrode bar 22, form initial arc 23, then solenoid 9 is oppositely energized, the center of solenoid 9 is made to produce the magnetic force of drive rod 7 retrude, the front end of arc electrode 21 is retracted in the groove 20 of disk electrode 1 outer end, electric discharge is just carried out between the head end and the outer end of disk electrode 1 of electrode bar 22, forms high-temperature plasma electric arc 24.The device of the present embodiment is used for processing industrial harmful gas, impacts processed industrial harmful gas, make its molecule, atom will reconfigure and generate new material, thus make harmful substance become innocuous substance with the high-temperature plasma electric arc produced.