CN205356792U - Electrode of plasma device - Google Patents

Abstract

The utility model provides an electrode of plasma device, relates to plasma device, leads tight pole by first electrode, second electrode, support and punching and constitutes, and the second electrode is the disc body structure, and there is the through -hole at the disc body center of second electrode, among the first electrode was arranged in the setting that embeds of first electrode and second electrode, second electrode, the wall body front end at the support was installed to first electrode and second electrode, leads tight pole with the punching and carries on zonulae occludens to second electrode and support, and the space between second electrode and the support wall body constitutes the annular and cools off the chamber, the inner space that tight pole was led to the punching constitutes the fuse via hole, the space constitutes ionization channel between the inner wall of first electrode and the outer wall of second electrode. The utility model discloses earlier make industry harmful gas carry out the ionization activation, handle under the effect of high temperature plasma electric arc again, improved efficiency and saved the electric energy, the utility model discloses take to utilize the fuse striking to leave out arching electrode 's drive arrangement, simple structure is reasonable and easy and simple to handle.

Description

A kind of electrode of plasma device

Technical field

This utility model relates to plasma apparatus, especially relates to the electrode of a kind of arc plasma device.

Background technology

Currently, plasma technology is widely used, industrial is applied to plasma ignition, plasma spraying, metal smelt, heating plasma manufacture nano material, cutting, waste incineration refuse process 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 along with electric discharge phenomena, excite the activity chemistry thing of molecule, dissociation atom, free atomic group, atom or molecular ion group and their reactions of colliding with other chemicals and causing.In plasma generator, discharge process makes work gas molecule lose outer-shell electron and form ionic condition, high temperature is produced through collision mutually, more than temperature is spent up to several ten thousand, when processed chemical industry harmful gas is subject to the plasma attack of High Temperature High Pressure, its molecule, atom will reconfigure and generate new material, so that harmful substance becomes 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 the efficiency of raising plasma device, minimizing power consumption are the targets that this area research staff pursues.

Utility model content

The purpose of this utility model is to provide the plasma device of a kind of applicable process chemical industry harmful gas, and makes apparatus structure advantages of simple and efficiency high, to reduce power consumption.

The electrode of a kind of plasma device of the present utility model, is led tight bar 6 by first electrode the 1, second electrode 3, support 4 and punching and forms, and the second electrode 3 is disc structure, and there is through hole at the disc center of the second electrode 3；Support 4 is rotary structure, has through duct at the wall body center of support 4 rear end；It is characterized in that the first electrode 1 is ring structure, first electrode 1 carries out nested setting with the second electrode 3, second electrode 3 is placed among the first electrode 1, first electrode 1 and the second electrode 3 are arranged on the wall body front end of support 4, leading 6 the second electrodes 3 of tight bar by punching and carry out compact siro spinning technology with support 4, the space between the second electrode 3 and support 4 wall body constitutes annular cooling chamber 11；It is hollow-core construction that punching leads tight bar 4, and the rear end of interior space composition fuse via 6-5, fuse via 6-5 that punching leads tight bar 6 constitutes fuse installing port 6-1；Between inwall and the outer wall of the second electrode 3 of the first electrode 1, space constitutes ionization channels 16.

In this utility model, having cannelure in the annular solid of the first electrode 1, cannelure constitutes ring-shaped air chamber 15, and ring-shaped air chamber 15 has medium input interface 2 to access；Having the tangential air drain 4-3 for producing swirling eddy on the wall body of support 4 front end, ring-shaped air chamber 15 is communicated to ionization channels 16 by tangential air drain 4-3；The disc outer end fluted 18 of the second electrode 3, the groove 18 of fuse via 6-5 and the second electrode 3 disc outer end carries out through being connected；Have cooling annular groove 13 in the inner side of the second electrode 3, cooling annular groove 13 communicates with annular cooling chamber 11, and annular cooling chamber 11 has cooling water inlet 12 to access and coolant outlet 5 picks out；The wall body that support 4 is connected with the second electrode 3 there is the bulge loop 4-2 acting on sealing；The through duct at wall body center, support 4 rear end there is seal groove 4-1；The wall body of fuse installing port 6-1 has the fastening bolt 9 for fixing striking fuse；The rear portion leading tight bar 6 in punching has the first electric interfaces 10 to access, and the first electric interfaces 10 leads the metallic rod body of tight bar 6 by punching and the second electrode 3 is electrically connected；The wall body of the first electrode 1 there is the second electric interfaces 14 access.

This utility model is applied in plasma device, the described line that striking fuse is low melting material or silk, electric fuse including aluminum steel, fine copper wire or leypewter material, during application, striking fuse is arranged in the fuse via 6-5 that punching is led in tight bar 6, the front end of striking fuse is stretched out from the groove 18 of the second electrode 3 outer end, and the fastened bolt 9 in rear end of striking fuse is fixed in fuse installing port 6-1.

In plasma device, plasma arc produces between two main electrodes, when can maintain plasma arc stable operation between two main electrodes, space length between two main electrodes is more big, the stroke of plasma arc is more long, chance and number of times that its electronics collides mutually will be more, its energy will be more big, when being used for processing industrial harmful gas, harmful gas is subject to the intensity of High Temperature High Pressure plasma attack can be bigger, and it reconfigures the efficiency becoming innocuous substance can be higher.This utility model utilizes fuse to carry out striking, first uses striking fuse to make the striking Distance Shortened between two main electrodes, and to reduce striking voltage, then striking fuse is shortened by corrode, makes generation high-temperature plasma electric arc between two main electrodes.This utility model takes the measure utilizing fuse striking to make the space length between two main electrodes of plasma device be extended, and strengthens the energy of high-temperature plasma, improves efficiency and saves electric energy；Application on the long-term equipment run continuously that this utility model is adapted at infrequently starting, eliminates the driving device of arc electrode, reduces manufacturing cost, simple and reasonable, easy and simple to handle, striking fuse is extremely cheap, its cost can be ignored, and therefore, this utility model has high cost performance.

This utility model is application or application in solid waste disposal field in processing industrial harmful gas field, in order to improve the efficiency of plasma device further, electrode structure of the present utility model includes the first electrode 1 and the second electrode 3, first electrode 1 carries out nested setting with the second electrode 3, second electrode 3 is placed among the first electrode 1, makes space between the inwall of the first electrode 1 and the outer wall of the second electrode 3 constitute ionization channels 16.During application, the working power of plasma device is connected to punching and leads first electric interfaces 10 at tight bar 6 rear portion, simultaneously, high voltage power supply is connected to the second electric interfaces 14 on the first electrode 1 wall body, again the work gas of industrial harmful gas or steam or other sources of the gas is input to in the ring-shaped air chamber 15 of the first electrode 1 by medium input interface 2, the work gas of industrial harmful gas or steam or other sources of the gas is entered the ionization channels 16 between the first electrode 1 and the second electrode 3 by tangential air drain 4-3, swirling eddy is formed in ionization channels 16, when the first electrode 1 being applied the high voltage power supply of more than 10000V, just in ionization channels 16, form the electric field of air-flow isolation discharge mode, the work gas making industrial harmful gas or steam or other sources of the gas is ionized and increases activity, it is ionized the industrial harmful gas after activation under the effect of high-temperature plasma electric arc, it is easier to and is more thoroughly processed into the innocuous substance of neutrality, or be ionized the steam after activation and be easier to be decomposed and gasifying agent as solid organic waste substances is applied.

In a particular application, in the first electric interfaces 10 access is plasma operation power supply to above-mentioned utility model, and plasma operation power supply is characterized by low-voltage and high-current；Striking power supply more than the 10000V voltage that the second electric interfaces 14 accesses, striking power supply is characterized by high voltage small area analysis.Plasma device arranges the 3rd electrode 20, 3rd electrode 19 is as the public electrode of plasma operation power supply and high voltage power supply, during work, striking power supply makes the ionization channels 16 between the first electrode 1 and the second electrode 3 carry out the electric discharge of air-flow isolation method, make to discharge between striking fuse and the 3rd electrode 20 simultaneously, produce initial arc, then striking fuse is quickly shortened in the groove of the second electrode 3 by corrode, make formation high-temperature plasma electric arc between the second electrode 3 and the 3rd electrode 20, this utility model is first to make high voltage power supply act in the ionization channels 16 between the first electrode 1 and the second electrode 3, the work gas of industrial harmful gas or steam or other sources of the gas is ionized and activates, then high voltage power supply is made to act between the second electrode 3 and the 3rd electrode 20, the striking between the second electrode 3 and the 3rd electrode 20 is carried out by striking fuse, so as to produce high-temperature plasma electric arc, the work gas of industrial harmful gas or steam or other sources of the gas is carried out target process, improve efficiency and save electric energy, wherein, the electric energy producing high-temperature plasma electric arc is provided by plasma operation power supply.

When this utility model runs, the arc root of the plasma arc produced is on the outer face of the second electrode 3, in order to avoid striking fuse is sintered on the body of the second electrode 3, difficulty is brought when changing striking fuse to equipment operation next time, this utility model arranges groove 18 in the outer end of the second electrode 3, has certain space length between striking fuse head and the second electrode 3 after making striking effect complete.

The beneficial effects of the utility model are: be adapted at processing in industrial harmful gas field and apply or apply in solid waste disposal field, the work gas first making industrial harmful gas or steam or other sources of the gas carries out ionization activation, again the industrial harmful gas being ionized activation is processed under the effect of high-temperature plasma electric arc, it is easier to obtain target product.This utility model is taked to utilize the measure of fuse striking to make two electrode space distances formed between plasma arc be extended, and strengthens the energy of high-temperature plasma, improves efficiency and save electric energy；This utility model eliminates the driving device of arc electrode, reduces manufacturing cost, eliminates the driving device of arc electrode, simple and reasonable and easy and simple to handle.

Accompanying drawing explanation

Fig. 1 is the electrode structural chart of a kind of plasma device of the present utility model.

Fig. 2 is that the punching in plasma electrode of the present utility model leads tight bar structure chart.

Fig. 3 is the original state schematic diagram that this utility model utilizes fuse striking.

Fig. 4 is the electrode of the present utility model schematic diagram when forming high-temperature plasma electric arc.

In figure: 1. the first electrode, 2. medium input interface, 3. the second electrode, 4. support, 4-1. seal groove, 4-2. bulge loop, the tangential air drain of 4-3., 5. coolant outlet, 6. punching leads tight bar, 6-1. fuse installing port, hexagonal major part in 6-2., 6-3. fastens screw, 6-4. leads tight screw thread, 6-5. fuse via, 7. sealing ring, 8. nut, 9. fastening bolt, 10. the first electric interfaces, 11. annular cooling chamber, 12. cooling water inlet, 13. cooling annular groove, 14. the second electric interfaces, 15. ring-shaped air chamber, 16. ionization channels, 17. sealing gasket, 18. groove, 19. striking fuse, 20. the 3rd electrode, 21. initial arc, 22. high-temperature plasma electric arc.

Detailed description of the invention

In embodiment shown in embodiment 1 Fig. 1 and Fig. 2, the electrode of a kind of plasma device is led tight bar 6 by first electrode the 1, second electrode 3, support 4 and punching and forms, first electrode 1 is ring structure, the annular solid of the first electrode 1 there is cannelure, cannelure constitutes ring-shaped air chamber 15, and ring-shaped air chamber 15 has medium input interface 2 to access；Second electrode 3 is disc structure, and there is through hole at the disc center of the second electrode 3, the outer end fluted 18 of the second electrode 3, and there is cooling annular groove 13 inner side of the second electrode 3；Support 4 is rotary structure, has through duct at the wall body center of support 4 rear end, has the wedge shaped structure of section of seal groove 4-1, seal groove 4-1 in this duct, has the tangential air drain 4-3 for producing swirling eddy on the wall body of support 4 front end；It is hollow-core construction that punching leads tight bar 4, punching is led the interior space of tight bar 6 and is constituted fuse via 6-5, fuse via 6-5 is axially through structure, it is interior hexagonal major part 6-2 that punching leads the front end of tight bar 6, punching leads the rear portion of tight bar 6 to be had and externally threaded leads tight screw thread 6-4, leads and has fastening screw 6-3 on the rear end body of rod of tight screw thread 6-4；First electrode 1 carries out nested setting with the second electrode 3, second electrode 3 is placed among the first electrode 1, first electrode 1 and the second electrode 3 are arranged on the wall body front end of support 4, punching is led the shaft of tight bar 6 and is sequentially passed through the central through hole of the second electrode 3, support 4 rear end wall body central duct and seal groove 4-1, punching is led the interior hexagonal major part 6-2 of tight bar 6 front end and is pressed on groove 18 bottom of the second electrode 3, led on tight screw thread 6-4 what nut 8 was tightened on that punching leads tight bar 6 rear portion again, the second electrode 3 is made to carry out compact siro spinning technology with support 4, lead in punching and have sealing gasket 17 between interior hexagonal major part 6-2 and groove 18 bottom of the second electrode 3 of tight bar 6, seal groove 4-1 has the sealing ring 7 of wedge shape；The wall body that support 4 is connected with the second electrode 3 there is the bulge loop 4-2 acting on sealing, is attached with screw thread mounting means between the first electrode 1 and support 4；Space between second electrode 3 and support 4 wall body constitutes annular cooling chamber 11, and the cooling annular groove 13 inside the second electrode 3 communicates with annular cooling chamber 11, and annular cooling chamber 11 has cooling water inlet 12 to access and coolant outlet 5 picks out；The rear end of interior space composition fuse via 6-5, fuse via 6-5 that punching leads tight bar 6 constitutes fuse installing port 6-1, has the fastening bolt 9 for fixing striking fuse on the wall body of fuse installing port 6-1；Between inwall and the outer wall of the second electrode 3 of the first electrode 1, space constitutes ionization channels 16, and the ring-shaped air chamber 15 in the first electrode 1 body is communicated to ionization channels 16 by the tangential air drain 4-3 on the wall body of support 4 front end；The groove 18 of fuse via 6-5 and the second electrode 3 disc outer end carries out through being connected；The rear portion leading tight bar 6 in punching has the first electric interfaces 10 to access, and the first electric interfaces 10 leads the metallic rod body of tight bar 6 by punching and the second electrode 3 is electrically connected；The wall body of the first electrode 1 there is the second electric interfaces 14 access.In the present embodiment, the described line that striking fuse is low melting material or silk, including the electric fuse of aluminum steel, fine copper wire or leypewter material；First electrode 1 and punching are led tight bar 6 and are selected ordinary metallic material to make；Second electrode 3 selects refractory metal material to make；Support 4 selects polytetrafluoroethylmaterial material to make；Sealing gasket 17 selects the graphite asbestos composite material with electric conductivity to make；The present embodiment is applied in plasma device, during application, striking fuse is arranged in the fuse via 6-5 that punching is led in tight bar 6, the front end of striking fuse is stretched out from the groove 18 of the second electrode 3 outer end, the front end making striking fuse is close with the 3rd electrode, and the fastened bolt 8 in rear end of striking fuse is fixed in fuse installing port 6-1.

In embodiment shown in embodiment 2 Fig. 3 and Fig. 4, plasma device structure and the 3rd electrode 20 described in first embodiment form, the structure of first embodiment repeats no more, the distance between the second electrode 3 and the 3rd electrode 20 head end in structure described in first embodiment is meet to make plasma arc maintain the maximum spacing run when striking, the material of striking fuse 19 is leypewter material, the front end of striking fuse 19 is close with the head end of the 3rd electrode 20, and its distance is 5-30 millimeter.The working power of plasma device is connected to punching and leads first electric interfaces 10 at tight bar 6 rear portion, and the striking power supply of more than 10000V is connected to the second electric interfaces 14 on the first electrode 1 wall body, and industrial harmful gas is connected on medium input interface 2；During operation, industrial harmful gas enters in ring-shaped air chamber 15, entered in the ionization channels 16 between the first electrode 1 and the second electrode 3 by tangential air drain 4-3 in swirling eddy mode again, ionization channels 16 is formed the electric field of air-flow isolation discharge mode, between the head end and the head end of the 3rd electrode 20 of striking fuse 19, form initial arc 21 simultaneously, striking fuse 19 is quickly shortened by corrode, when striking fuse 19 is shortened to by corrode in the groove 18 of the second electrode 3 outer end, electric discharge just carries out between the head end of the 3rd electrode 20 and the second electrode 3 outer end, form high-temperature plasma electric arc 22；Enter into the industrial harmful gas in plasma device and will be ionized activation in ionization channels 16, then again under the effect of high-temperature plasma electric arc, make its molecule, atom will reconfigure and generate new material, so that harmful substance becomes innocuous substance.

Claims (9)

1. an electrode for plasma device, is led tight bar (6) by the first electrode (1), the second electrode (3), support (4) and punching and forms, and the second electrode (3) is disc structure, and there is through hole at the disc center of the second electrode (3)；Support (4) is rotary structure, has through duct at the wall body center of support (4) rear end；It is characterized in that the first electrode (1) is ring structure, first electrode (1) carries out nested setting with the second electrode (3), second electrode (3) is placed among the first electrode (1), first electrode (1) and the second electrode (3) are arranged on the wall body front end of support (4), leading tight bar (6) by punching and the second electrode (3) and support (4) are carried out compact siro spinning technology, the space between the second electrode (3) and support (4) wall body constitutes annular cooling chamber (11)；It is hollow-core construction that punching leads tight bar (4), and punching is led the interior space of tight bar (6) and constituted fuse via (6-5), and the rear end of fuse via (6-5) constitutes fuse installing port (6-1)；Between inwall and the outer wall of the second electrode (3) of the first electrode (1), space constitutes ionization channels (16).

2. the electrode of a kind of plasma device according to claim 1, is characterized in that having cannelure in the annular solid of the first electrode (1), and cannelure constitutes ring-shaped air chamber (15), and ring-shaped air chamber (15) has medium input interface (2) to access；Having the tangential air drain (4-3) for producing swirling eddy on the wall body of support (4) front end, ring-shaped air chamber (15) is communicated to ionization channels (16) by tangential air drain (4-3).

3. the electrode of a kind of plasma device according to claim 1, is characterized in that the disc outer end of the second electrode (3) fluted (18), and fuse via (6-5) carries out through being connected with the groove (18) of the second electrode (3) disc outer end.

4. the electrode of a kind of plasma device according to claim 1, it is characterized in that there is cooling annular groove (13) in the inner side of the second electrode (3), cooling annular groove (13) communicates with annular cooling chamber (11), and annular cooling chamber (11) has cooling water inlet (12) to access and coolant outlet (5) picks out.

5. the electrode of a kind of plasma device according to claim 1, is characterized in that there is the bulge loop (4-2) acting on sealing with the second electrode (3) on the wall body that support (4) is connected.

6. the electrode of a kind of plasma device according to claim 1, is characterized in that having seal groove (4-1) in the through duct at wall body center, support (4) rear end.

7. the electrode of a kind of plasma device according to claim 1, is characterized in that the fastening bolt (9) having on the wall body of fuse installing port (6-1) for fixing striking fuse.

8. the electrode of a kind of plasma device according to claim 1, it is characterized in that the rear portion leading tight bar (6) in punching has the first electric interfaces (10) to access, the first electric interfaces (10) leads the metallic rod body of tight bar (6) by punching and the second electrode (3) is electrically connected.

9. the electrode of a kind of plasma device according to claim 1, is characterized in that having the second electric interfaces (14) to access on the wall body of the first electrode (1).