CN210491298U - Plasma generator - Google Patents
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- CN210491298U CN210491298U CN201921019267.XU CN201921019267U CN210491298U CN 210491298 U CN210491298 U CN 210491298U CN 201921019267 U CN201921019267 U CN 201921019267U CN 210491298 U CN210491298 U CN 210491298U
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Abstract
The utility model relates to a waste treatment technical field, concretely relates to plasma generator, including negative pole, the arc starting positive pole and the positive pole of coaxial series connection in proper order, be provided with negative pole head, cathode sleeve on the negative pole and be used for the first cooling channel of cooling cathode head, be provided with positive pole inside lining, positive pole overcoat on the positive pole and be used for cooling off the second cooling channel of positive pole inside lining, the arc starting positive pole includes: an arc starting anode lining; the plasma generating cavity is positioned on one side of the arc-striking anode lining facing the cathode head and used for the arc-striking anode to break down working gas to form plasma; preheat the cavity, it encircle set up in arc starting anode inside lining outside supplies microthermal working gas and high temperature arc starting anode inside lining to carry out the heat exchange, preheat cavity and plasma and produce the cavity and communicate each other, have simple structure, spare part is few, and is small, advantage that heat recovery rate is high.
Description
Technical Field
The utility model relates to a waste treatment technical field, concretely relates to plasma generator.
Background
At present, the plasma technology is widely applied in many fields, and the generated plasma torch has high temperature and can instantly melt objects which are difficult to melt. In the aspect of destroying the confidential media, a method which is efficient and can thoroughly destroy a plurality of different confidential media simultaneously is needed, and the requirements in the aspect can be met by utilizing the plasma technology. The plasma torch generated by the plasma generator can generate a high temperature of more than 3000K, and can instantly melt the confidential media which are difficult to destroy, such as hard disks, magnetic disks, U disks, chips and the like. The common method for destroying the confidential media is difficult to satisfy the destroy of different media, and a new method is provided for destroying the confidential media by using a plasma technology.
Chinese patent document CN205160897U provides a plasma generator for treating solid waste from nuclear facilities, comprising: a cathode; the anode comprises at least three anodes which are sequentially coaxially connected in series, wherein a first anode of the at least three anodes is coaxially connected with the cathode, and the at least three anodes are all of a jacket layer structure; and an arc is established between the cathode and the first anode through high-frequency high-voltage breakdown and is switched to a third anode step by step, so that the arc is stably maintained between the cathode and the third anode, working gas is respectively sprayed into the space between the cathode and the first anode, the space between the first anode and the second anode and the space between the second anode and the third anode, and the working gas is sprayed out from an outlet of the third anode after being heated by the arc to form plasma jet. In the working process of the plasma generator, a cathode, a first anode, a second anode and a third anode release a large amount of heat, but the plasma generator only recovers the heat of the first anode and cannot recover and utilize the heat of other parts, so that the heat loss is serious, the energy is wasted, and the recovery efficiency is low; and the structure is complex, the volume is large, the requirement of daily office places of enterprises and public institutions on the destruction of the confidential media cannot be met, and the application prospect is poor.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the present invention lies in overcoming the defects of low heat recovery utilization rate, complex structure and large volume in the prior art, thereby providing a plasma generator.
The utility model provides a plasma generator, including negative pole, the arc starting positive pole and the positive pole of coaxial series connection in proper order, be provided with negative pole head, negative pole sleeve on the negative pole and be used for the first cooling channel of cooling cathode head, be provided with positive pole inside lining, positive pole overcoat on the positive pole and be used for cooling off the second cooling channel of positive pole inside lining, the arc starting positive pole includes:
the arc ignition anode lining is used for generating high-frequency voltage after being electrified to puncture working gas to form plasma between the arc ignition anode lining and the cathode head, and the working gas is transmitted to the anode under the action of the gas to enable the cathode and the anode to be conducted to form stable plasma jet;
the plasma generating cavity is positioned on one side of the arc-striking anode lining facing the cathode head and used for the arc-striking anode to break down working gas to form plasma;
preheat the cavity, it encircle set up in arc starting anode inside lining outside supplies microthermal working gas and high temperature arc starting anode inside lining to carry out the heat exchange, preheat cavity and plasma production cavity intercommunication each other.
Further, the cathode further includes:
the cathode cooling core is arranged between the cathode head and the cathode sleeve, one end of the cathode cooling core extends into the cavity of the cathode sleeve, the other end of the cathode cooling core extends into the cavity of the cathode head, and the cathode sleeve is provided with a cathode cooling water inlet and a cathode cooling water outlet;
the first cooling channel comprises a cathode cooling water inlet, a cathode sleeve cavity, a cathode cooling core cavity, a cathode head cavity and a cathode cooling water outlet which are sequentially communicated with one another along the water flow direction.
Preferably, the cathode cooling water inlet and the cathode cooling water outlet are vertically distributed.
Further, the arc-striking anode also comprises a cathode insulator, an arc-striking anode insulator and an arc-striking anode sleeve; the cathode insulator, the arc-striking anode lining and the arc-striking anode sleeve are sequentially connected, and the arc-striking anode insulator is connected to one end, far away from the cathode insulator, of the arc-striking anode lining and is located in the arc-striking anode sleeve.
Preferably, an arc starting anode lining air inlet and an arc starting anode lining air outlet are arranged on the arc starting anode lining; the arc striking anode sleeve is provided with a working gas inlet;
the preheating chamber is formed by enclosing the arc striking anode lining, the arc striking anode sleeve and the arc striking anode insulator; the plasma generating chamber is formed by enclosing an arc striking anode lining, a cathode insulator, a cathode sleeve and a cathode head, and along the flowing direction of working gas, a working gas inlet is communicated with an arc striking anode lining gas outlet through a preheating chamber, an arc striking anode lining gas inlet and a plasma generating chamber in sequence.
Further, the plasma generation cavity is cylindrical, at least 1 arc ignition anode lining air inlet is arranged, and the arc ignition anode lining air inlet is tangent to the circumference of the wall surface of the plasma generation cavity.
Preferably, a plasma channel for plasma to circulate is arranged in the anode lining, the anode lining extends into the cavity of the anode jacket, and the anode jacket is provided with an anode cooling water inlet and an anode cooling water outlet;
the second cooling channel comprises an anode cooling water inlet, a cavity between the anode lining and the anode jacket and an anode cooling water outlet which are sequentially communicated with each other.
Furthermore, the cross sections of the cathode head and the arc-striking anode lining air outlet are both circular, and the circle centers of the cross sections of the cathode head and the arc-striking anode lining air outlet are on the same straight line.
Preferably, the cross section of the plasma channel is circular, and the circle center of the cross section of the plasma channel is on the same straight line with the circle centers of the cross sections of the cathode head and the arc ignition anode lining air outlet.
Furthermore, the anode lining is provided with a notch for embedding a sealing ring on the end surface facing the anode jacket, one end of the sealing ring is embedded in the notch, and the other end of the sealing ring is abutted to the end surface of the anode jacket.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a plasma generator, including negative pole, the arc starting positive pole and the positive pole of coaxial series connection in proper order, be provided with negative pole head, negative pole sleeve on the negative pole and be used for the first cooling channel of cooling cathode head, be provided with the second cooling channel of positive pole inside lining, positive pole overcoat and being used for cooling off the positive pole inside lining on the positive pole, the arc starting positive pole includes: the arc ignition anode lining is used for generating high-frequency voltage after being electrified to puncture working gas to form plasma between the arc ignition anode lining and the cathode head, and the working gas is transmitted to the anode under the action of the gas to enable the cathode and the anode to be conducted to form stable plasma jet; the plasma generating cavity is positioned on one side of the arc-striking anode lining facing the cathode head and used for the arc-striking anode to break down working gas to form plasma; preheat the cavity, it encircle set up in arc starting anode inside lining outside supplies microthermal working gas and high temperature arc starting anode inside lining to carry out the heat exchange, preheat cavity and plasma production cavity intercommunication each other. Through the arrangement of the first cooling channel and the second cooling channel, heat at the cathode and the anode is recovered respectively; through the technical scheme, the high-frequency high-voltage pulse voltage can be generated by the arc-striking anode when the arc-striking anode is electrified, air between the arc-striking anode and the cathode is punctured to form plasma, the plasma is blown to the inner surface of the anode under the action of the gas, so that the cathode and the anode are conducted to form stable plasma, after normal work, the high-frequency high-voltage pulse voltage on the arc-striking anode is cut off, the arc-striking anode is heated by the plasma at the moment, the working gas is led in and preheated through the preheating chamber, meanwhile, the temperature of the arc-striking anode can be reduced, the purpose of saving energy is achieved, self-cooling of the arc-striking anode is achieved, the heat recovery efficiency is greatly improved, and the heat efficiency; and only provide electric energy and compressed air, can long-time stable work, simple structure, spare part is few, and is small, only has the palm size, can produce the temperature that is greater than 3000K, can directly destroy multiple secret-related medium, for example hard disk, magnetic disc, USB flash disk, chip and paper etc..
2. The utility model provides a plasma generator, the negative pole still includes: the cathode cooling core is arranged between the cathode head and the cathode sleeve, one end of the cathode cooling core extends into the cavity of the cathode sleeve, the other end of the cathode cooling core extends into the cavity of the cathode head, and the cathode sleeve is provided with a cathode cooling water inlet and a cathode cooling water outlet; the first cooling channel comprises a cathode cooling water inlet, a cathode sleeve cavity, a cathode cooling core cavity, a cathode head cavity and a cathode cooling water outlet which are sequentially communicated with one another along the water flow direction. The bottom that can stretch into the negative pole head through the setting of negative pole cooling core and cool off the negative pole head, improves cooling efficiency and the thermal rate of recovery of negative pole.
3. The utility model provides a plasma generator, cathode cooling water import and cathode cooling water export are the vertical distribution, and the circulation route of extension cooling water strengthens the disturbance of cooling water, improves the homogeneity that cooling water temperature risees to improve cooling efficiency and thermal rate of recovery.
4. The utility model provides a plasma generator, the arc striking anode also comprises a cathode insulator, an arc striking anode insulator and an arc striking anode sleeve; the cathode insulator, the arc-striking anode lining and the arc-striking anode sleeve are sequentially connected, the arc-striking anode insulator is connected to one end, far away from the cathode insulator, of the arc-striking anode lining and is located in the arc-striking anode sleeve, the arc-striking anode sleeve is an insulator, the cathode insulator ensures insulation between the cathode sleeve and the arc-striking anode lining, and the arc-striking anode insulator ensures insulation between the arc-striking anode lining and the anode outer sleeve, so that the whole device is an insulator, and is safe and reliable.
5. The utility model provides a plasma generator, an arc-striking anode lining air inlet and an arc-striking anode lining air outlet are arranged on the arc-striking anode lining; the arc striking anode sleeve is provided with a working gas inlet and a working gas outlet; the preheating chamber is formed by enclosing the arc striking anode lining, the arc striking anode sleeve and the arc striking anode insulator; the plasma generating chamber is formed by enclosing an arc striking anode lining, a cathode insulator, a cathode sleeve and a cathode head, and along the flowing direction of working gas, a working gas inlet is communicated with an arc striking anode lining gas outlet through a preheating chamber, an arc striking anode lining gas inlet and a plasma generating chamber in sequence. By the technical scheme, the recovery of the heat of the arc ignition anode is realized, the structure is compact, the size is small, the requirement of daily office places of enterprises and public institutions on the destruction of the confidential medium can be met, and the application prospect is good.
6. The utility model provides a plasma generator, plasma produces the cavity and is the cylinder, the arc starting anode lining air inlet is provided with 1 at least, arc starting anode lining air inlet is tangent with the wall circumference that plasma produced the cavity. The gas inlet of the arc-striking anode lining is tangent to the circumference of the wall surface of the plasma generation cavity, so that the working gas can rotate in the cavity, and the arc-striking anode lining is further cooled.
7. The utility model provides a plasma generator, lie in the notch that supplies the sealing washer embedding on the terminal surface of orientation positive pole overcoat on the positive pole inside lining, in sealing washer one end embedded groove mouth, the other end butt is in on the terminal surface of positive pole overcoat, improve the leakproofness of the cavity that positive pole overcoat and positive pole inside lining formed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural view of a plasma generator provided in a first embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a block diagram of an arc starting anode liner provided in a first embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
reference numerals:
1. a cathode; 1-1, a cathode sleeve; 1-2, a cathode cooling core; 1-3, cathode head; 1-a, a cathode cooling water inlet; 1-b, a cathode cooling water outlet; 1-c, a cathode terminal; 2. an arc striking anode; 2-1, a cathode insulator; 2-2, lining an arc striking anode; 2-3, an arc striking anode sleeve; 2-4, an arc starting anode insulator; 2-a, a first working gas inlet; 2-b, a second working gas inlet; 2-c, a first arc starting anode lining air inlet; 2-d, a second arc starting anode lining air inlet; 2-e, an arc starting anode terminal; 2-f, an arc-striking anode lining gas outlet; 3. an anode; 3-1, coating an anode sleeve; 3-2, lining of an anode; 3-a, an anode cooling water inlet; 3-b, an anode cooling water outlet; 3-c, a notch; 3-d, an anode terminal; 3-e, plasma channel.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
One embodiment of the plasma generator shown in fig. 1 comprises a cathode 1, an arc-starting anode 2 and an anode 3 which are coaxially connected in series in sequence, wherein a cathode sleeve 1-1, a cathode head 1-3 and a first cooling channel for cooling the cathode head 1-3 are arranged on the cathode 1, an anode jacket 3-1, an anode lining 3-2 and a second cooling channel for cooling the anode lining 3-2 are arranged on the anode 3, and the arc-starting anode 2 comprises: the arc ignition anode lining 2-2 is used for generating high-frequency voltage breakdown working gas after being electrified to form plasma between the arc ignition anode lining 2-2 and the cathode head 1-3, and transmitting the working gas to the anode 3 under the action of the gas to enable the cathode 1 and the anode 3 to be conducted to form stable plasma jet; the plasma generating cavity is positioned on one side of the arc ignition anode lining 2-2 facing the cathode head 1-3 and is used for the arc ignition anode 2 to break down working gas to form plasma; the preheating chamber is arranged outside the arc ignition anode lining 2-2 in a surrounding mode and used for heat exchange between low-temperature working gas and the high-temperature arc ignition anode lining 2-2, and the preheating chamber is communicated with the plasma generation chamber.
Firstly, high-frequency high-voltage pulse voltage is generated by the arc-striking anode 2 when the power is on, air between the arc-striking anode 2 and the cathode 1 is punctured to form plasma, the plasma is blown to the inner surface of the anode 3 under the action of gas, so that the cathode 1 and the anode 3 are conducted to form stable plasma, after normal work, the high-frequency high-voltage pulse voltage on the arc-striking anode 2 is cut back, the arc-striking anode 2 can be heated by the plasma at the moment, working gas is led in and preheated through a preheating chamber, and meanwhile, the temperature of the arc-striking anode 2 can be reduced, so that the purpose of saving energy is achieved, self-cooling of the arc-striking anode 2 is realized, the heat recovery efficiency is greatly improved, and the heat efficiency reaches more; and only provide electric energy and compressed air, can long-time stable work, simple structure, spare part is few, and is small, only has the palm size, can produce the temperature that is greater than 3000K, can directly destroy multiple secret-related medium, for example hard disk, magnetic disc, USB flash disk, chip and paper etc..
Specifically, the cathode 1 further comprises a cathode cooling core 1-2, the cathode cooling core 1-2 is arranged between the cathode head 1-3 and the cathode sleeve 1-1, the cathode cooling core 1-2 and the cathode head 1-3 are all of a hollow structure, the left end of the cathode cooling core 1-2 extends into the cavity of the cathode sleeve 1-1, the right end of the cathode cooling core extends into the cavity of the cathode head 1-3, the left end of the cathode cooling core 1-2 is fixed into the cathode sleeve 1-1 through threads, the left end of the cathode head 1-3 is fixed into the cathode sleeve 1-1 through threads, and the right end of the cathode head 1-3 extends to the arc-striking anode 2.
The cathode sleeve 1-1 is provided with a cathode cooling water inlet 1-a and a cathode cooling water outlet 1-b. The cathode cooling water inlet 1-a is communicated with the cavity of the cathode sleeve 1-1, the cavity of the cathode sleeve 1-1 is communicated with the cavity of the cathode cooling core 1-2, the cavity of the cathode cooling core 1-2 is communicated with the cavity of the cathode head 1-3, and the cavity of the cathode head 1-3 is communicated with the cathode cooling water outlet 1-b. The first cooling channel comprises a cathode cooling water inlet 1-a, a cavity of a cathode sleeve 1-1, a cavity of a cathode cooling core 1-2, a cavity of a cathode head 1-3 and a cathode cooling water outlet 1-b which are sequentially communicated with one another along the water flow direction. The cathode cooling core 1-2 can extend into the bottom end of the cathode head 1-3 to cool the cathode head 1-3, so that the cooling efficiency and the heat recovery rate of the cathode 1 are improved.
Specifically, the arc ignition anode 2 further comprises a cathode insulator 2-1, an arc ignition anode insulator 2-4 and an arc ignition anode sleeve 2-3; the cathode insulator 2-1, the arc-striking anode liner 2-2 and the arc-striking anode sleeve 2-3 are sequentially connected through threads, and the arc-striking anode insulator 2-4 is connected to one end, far away from the cathode insulator 2-1, of the arc-striking anode liner 2-2 and is located in the arc-striking anode sleeve 2-3. Wherein, the cathode sleeve 1-1 is connected with the cathode insulator 2-1 through screw threads, and the arc ignition anode sleeve 2-3 is an insulator. The cathode insulator 2-1 ensures the insulation between the cathode sleeve 1-1 and the arc ignition anode lining 2-2, and the arc ignition anode insulator 2-4 ensures the insulation between the arc ignition anode lining 2-2 and the anode jacket 3-1, so that the whole device is an insulator, and is safe and reliable.
Furthermore, the cathode cooling water inlet 1-a and the cathode cooling water outlet 1-b are vertically distributed.
Specifically, as shown in fig. 1 and 3, an arc starting anode lining air inlet and an arc starting anode lining air outlet 2-f are arranged on the arc starting anode lining 2-2; the arc ignition anode sleeve 2-3 is provided with a working gas inlet; the preheating chamber is formed by enclosing the arc striking anode lining 2-2, the arc striking anode sleeve 2-3 and the arc striking anode insulator 2-4; the plasma generating chamber is formed by enclosing an arc ignition anode lining 2-2, a cathode insulator 2-1, a cathode sleeve 1-1 and a cathode head 1-3, and along the flowing direction of working gas, a working gas inlet is communicated with an arc ignition anode lining gas outlet 2-f through a preheating chamber, an arc ignition anode lining gas inlet and a plasma generating chamber in sequence. As shown in fig. 1, the working gas inlets are provided in two, a first working gas inlet 2-a and a second working gas inlet 2-b, respectively. During operation, working gas enters the preheating chamber from the first working gas inlet 2-a and the second working gas inlet 2-b, bypasses the outer surfaces of the arc striking anode lining 2-2 and the arc striking anode insulator 2-4, plays a role in cooling the arc striking anode lining 2-2 and the arc striking anode insulator 2-4, can heat the working gas to play an energy saving role, enters the plasma generating chamber to generate plasma under the action of the cathode 1, the anode 3 and the arc striking anode 2, and is discharged through the arc striking anode lining gas outlet 2-f.
As shown in fig. 1 and 3, a cathode wire terminal 1-c is arranged on the cathode sleeve 1-1, the cathode wire terminal 1-c is connected with a cathode wire through a bolt, an arc starting anode terminal 2-e is also arranged on the arc starting anode lining 2-2, the arc starting anode terminal 2-e is used for connecting an arc starting anode wire, an anode terminal 3-d is arranged on the anode jacket 3-1, and an anode terminal (3-d) is used for connecting an anode wire. The cathode 1 is connected with the cathode end of the power supply through a cathode wire, the arc striking anode 2 is connected with the arc striking end through an arc striking anode wire, and the anode 3 is connected with the anode end of the power supply through an anode wire.
Further, as shown in fig. 2-4, two arc-striking anode liner gas inlets are provided, which are respectively marked as a first arc-striking anode liner gas inlet 2-c and a second arc-striking anode liner gas inlet 2-d, the directions of the two arc-striking anode liner gas inlets are opposite, the plasma generation chamber is cylindrical, and the first arc-striking anode liner gas inlet 2-c and the second arc-striking anode liner gas inlet 2-d are respectively tangent to the wall surface of the plasma generation chamber (i.e. tangent to the inner wall surface of the arc-striking anode liner), so as to ensure that the working gas rotates after entering the plasma generation chamber, and play roles in stabilizing gas flow and cooling the arc-striking anode liner 2-2.
Specifically, as shown in fig. 1, a plasma channel 3-e for flowing through of plasma is arranged in the anode lining 3-2, and the anode jacket 3-1 and the anode lining 3-2 are connected through threads to form a cavity for flowing through of cooling water. The anode lining 3-2 extends into the cavity of the anode jacket 3-1, and an anode cooling water inlet 3-a and an anode cooling water outlet 3-b are arranged on the anode jacket 3-1; the second cooling channel comprises an anode cooling water inlet 3-a, a cavity between the anode lining 3-2 and the anode jacket 3-1 and an anode cooling water outlet 3-b which are sequentially communicated with each other. Cooling water enters the second cooling channel from the anode cooling water inlet 3-a, cools the anode lining 3-2 and then is discharged from the anode cooling water outlet 3-b. The anode jacket 3-1 and the arc striking anode sleeve 2-3 are connected by bolts. The arc ignition anode insulator 2-4 is fixed between the arc ignition anode lining 2-2 and the anode jacket 3-1.
In order to stabilize the air flow, as shown in fig. 1, the cross sections of the cathode heads 1-3 and the arc-striking anode lining air outlets 2-f are both circular, and the circle centers of the cross sections of the cathode heads 1-3 and the arc-striking anode lining air outlets 2-f are on the same straight line. The section of the plasma channel 3-e is circular, and the circle center of the section of the plasma channel is on the same straight line with the circle centers of the sections of the cathode head 1-3 and the arc-striking anode lining air outlet 2-f.
In order to improve the tightness of the inner cavity, as shown in fig. 1, a notch 3-c for inserting a sealing ring is arranged on the end surface of the anode lining 3-2 facing the anode jacket 3-1, one end of the sealing ring is inserted into the notch 3-c, and the other end of the sealing ring abuts against the end surface of the anode jacket 3-1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides a plasma generator, its characterized in that, is including negative pole (1), arc starting anode (2) and the positive pole (3) that connect gradually, be provided with cathode sleeve (1-1), negative pole head (1-3) and be used for cooling the first cooling channel of cathode sleeve (1-1) and negative pole head (1-3) on negative pole (1), be provided with positive pole overcoat (3-1), positive pole inside lining (3-2) and be used for cooling the second cooling channel of positive pole overcoat (3-1) and positive pole inside lining (3-2) on positive pole (3), arc starting anode (2) include:
the arc ignition anode lining (2-2) is used for generating high-frequency voltage breakdown working gas after being electrified to form plasma between the arc ignition anode lining (2-2) and the cathode head (1-3), and transmitting the working gas to the anode (3) under the action of the gas so that the cathode (1) and the anode (3) are conducted to form stable plasma jet;
the plasma generating cavity is positioned on one side of the arc ignition anode lining (2-2) facing the cathode head (1-3) and is used for enabling the arc ignition anode (2) to break down working gas to form plasma;
the preheating chamber is arranged outside the arc ignition anode lining (2-2) in a surrounding mode and used for heat exchange between low-temperature working gas and the high-temperature arc ignition anode lining (2-2), and the preheating chamber is communicated with the plasma generation chamber.
2. The plasma generator according to claim 1, characterized in that the cathode (1) further comprises:
the cathode cooling core (1-2) is arranged between the cathode head (1-3) and the cathode sleeve (1-1), one end of the cathode cooling core is fixed in the cavity of the cathode sleeve (1-1), the other end of the cathode cooling core extends into the cavity of the cathode head (1-3), and the cathode sleeve (1-1) is provided with a cathode cooling water inlet (1-a) and a cathode cooling water outlet (1-b);
the first cooling channel comprises a cathode cooling water inlet (1-a), a cavity of a cathode sleeve (1-1), a cavity of a cathode cooling core (1-2), a cavity of a cathode head (1-3) and a cathode cooling water outlet (1-b) which are sequentially communicated with one another along the water flow direction.
3. The plasma generator according to claim 2, wherein the cathode cooling water inlet (1-a) direction and the cathode cooling water outlet (1-b) direction are vertically distributed.
4. The plasma generator according to any of claims 1-3, wherein the arc ignition anode (2) further comprises a cathode insulator (2-1), an arc ignition anode sleeve (2-3) and an arc ignition anode insulator (2-4), the cathode insulator (2-1), the arc ignition anode liner (2-2) and the arc ignition anode sleeve (2-3) are connected in sequence, the arc ignition anode insulator (2-4) is connected to one end of the arc ignition anode liner (2-2) far away from the cathode insulator (2-1) and is positioned in the arc ignition anode sleeve (2-3), and the arc ignition anode sleeve (2-3) is an insulator.
5. The plasma generator according to claim 4, characterized in that the arc ignition anode liner (2-2) is provided with an arc ignition anode liner gas inlet and an arc ignition anode liner gas outlet (2-f); the arc ignition anode sleeve (2-3) is provided with a working gas inlet;
the preheating chamber is formed by enclosing the arc ignition anode lining (2-2), the arc ignition anode sleeve (2-3) and an arc ignition anode insulator (2-4); the plasma generation chamber is formed by enclosing an arc ignition anode lining (2-2), a cathode insulator (2-1), a cathode sleeve (1-1) and a cathode head (1-3), and along the flowing direction of working gas, a working gas inlet is communicated with an arc ignition anode lining gas outlet (2-f) through a preheating chamber, an arc ignition anode lining gas inlet and the plasma generation chamber in sequence.
6. The plasma generator of claim 5, wherein the plasma generation chamber is cylindrical, and at least 1 arc ignition anode liner gas inlet is provided, and the arc ignition anode liner gas inlet is tangential to the circumference of the wall surface of the plasma generation chamber.
7. The plasma generator according to claim 5 or 6,
a plasma channel (3-e) for the circulation of plasma is arranged in the anode lining (3-2), the anode lining (3-2) extends into the cavity of the anode jacket (3-1), and an anode cooling water inlet (3-a) and an anode cooling water outlet (3-b) are arranged on the anode jacket (3-1);
the second cooling channel comprises an anode cooling water inlet (3-a), a cavity between the anode lining (3-2) and the anode jacket (3-1) and an anode cooling water outlet (3-b) which are sequentially communicated with each other.
8. The plasma generator according to claim 7, characterized in that the cross-section of the cathode head (1-3) and the arc-starting anode liner gas outlet (2-f) are both circular, and the centers of the cross-section circles of the cathode head (1-3) and the arc-starting anode liner gas outlet (2-f) are on the same straight line.
9. The plasma generator according to claim 8, characterized in that the cross section of the plasma channel (3-e) is circular, and the center of the cross section is on the same line with the center of the cross section of the cathode head (1-3) and the arc-starting anode liner gas outlet (2-f).
10. The plasma generator of claim 1,
a notch (3-c) for embedding a sealing ring is formed in the end face, facing the anode jacket (3-1), of the anode lining (3-2), one end of the sealing ring is embedded into the notch (3-c), and the other end of the sealing ring is abutted to the end face of the anode jacket (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921019267.XU CN210491298U (en) | 2019-07-02 | 2019-07-02 | Plasma generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921019267.XU CN210491298U (en) | 2019-07-02 | 2019-07-02 | Plasma generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210491298U true CN210491298U (en) | 2020-05-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110381660A (en) * | 2019-07-02 | 2019-10-25 | 苏州微木智能系统有限公司 | A kind of plasma generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381660A (en) * | 2019-07-02 | 2019-10-25 | 苏州微木智能系统有限公司 | A kind of plasma generator |
| CN110381660B (en) * | 2019-07-02 | 2024-05-14 | 苏州微木智能系统有限公司 | Plasma generator |
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