High-efficiency double-anode plasma generator

Abstract

The utility model relates to the technical field of plasma generators, in particular to a high-efficiency double-anode plasma generator, which comprises an outer cylinder used for mounting and limiting an anode assembly; the cathode seat is fixedly mounted relative to the outer cylinder through an insulating part and is used for mounting and limiting the cathode head; the gas path comprises two paths, one path is arranged on the insulating part so as to communicate an external gas source with the arc discharge cavity and provide stable wind pressure for the arc discharge cavity, and the other path is arranged on the anode assembly so as to communicate the external gas source with the arc falling channel; the cooling pipeline comprises a main water inlet pipe and a main water return pipe, the main water inlet pipe and the main water return pipe are connected through cooling lines connected in series, and the cooling lines sequentially cool the cathode head and the anode assembly; the plasma generator is used for solving the technical problems of short service life and low working efficiency caused by low cooling efficiency of the plasma generator in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plasma generator especially high -efficient double -anode plasma generator. BACKGROUND

[0002] The description in this section is provided only for background information related to the present disclosure and does not constitute prior art.

[0003] The plasma burner mainly utilizes high-frequency triggering to initiate arc, generates direct-current air arc plasma under high pressure, rapidly releases volatile matter under the action of high temperature generated by the plasma generator, breaks and crushes the particles, and thus rapidly burns, that is, uses high-temperature plasma generated by the plasma generator to ignite the coal powder. The conventional plasma generator comprises an anode head connected to an anode electrode and a cathode head connected to a cathode electrode, and a gas path passing through an arc drawing cavity between the cathode head and the anode head and a cooling pipeline for cooling the cathode head and the anode head.

[0004] The prior art discloses a high-power air-cooled plasma generator, and the patent for invention with the publication number CN104684234B discloses that the high-power air-cooled plasma generator mainly comprises a cathode body, an anode body and a magnetic coil, the cathode body is in the shape of a top, the structure of the anode body adopts a Laval nozzle structure, the cathode body and the anode body are coaxially arranged, the magnetic coil is arranged at the rear part of the cathode body and is connected in series in the cathode body circuit loop, an electric arc is formed between the cathode body and the anode body, the electric arc rotates at high speed under the action of the Lorentz force generated by the magnetic coil and is blown out along the anode body channel by the rotating airflow to form a plasma flow, and the cooling of the cathode body and the anode body is in the air-cooled mode. The cooling mode of the cathode body and the anode body of the high-power plasma generator is changed from water cooling to air cooling, and the problems of the complex structure and poor reliability of the existing water-cooled electrode plasma are overcome. The related technologies including the above technical solution still have many problems, such as the following: the cooling effect of the air cooling is not ideal compared with the water cooling, the cathode head and the anode head are not cooled in time, the service life is affected by high temperature, and the working efficiency of the plasma generator needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high-efficiency double-anode plasma generator, to solve the technical problems of low service life and low working efficiency caused by low cooling efficiency of plasma generator in prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of high-efficiency double-anode plasma generator, comprising:

[0008] Outer cylinder, for installing anode assembly and limiting it;

[0009] The cathode seat is fixedly installed opposite to the outer cylinder through the insulating piece and installs and limits the cathode head, so that the cavity formed between the anode assembly and the cathode head forms an arc cavity;

[0010] The gas path includes two paths, one of which is arranged on the insulating piece to communicate the external gas source with the arc cavity, so as to provide stable air pressure for the arc cavity, and the other of which is arranged on the anode assembly to communicate the external gas source with the arc passage;

[0011] The cooling pipeline includes a total water inlet pipe and a total water return pipe, and the total water inlet pipe and the total water return pipe are connected through a cooling circuit in series, which successively cools the cathode head and the anode assembly;

[0012] The anode assembly includes a primary anode, a transition anode and a secondary anode, the secondary anode is fixedly installed opposite to the outer cylinder, the primary anode is fixedly installed opposite to the secondary anode, and the transition anode is concentrically installed with the primary anode and the secondary anode and simultaneously communicates with the arc passage holes of the primary anode and the secondary anode.

[0013] Further, the end face of the transition anode is provided with a tapered circular hole which is inwardly recessed and contracted, and a transition arc passage hole which communicates with the tapered circular hole, and the outer periphery of the transition anode is provided with a thread which is used to communicate with a wind channel arranged in the primary anode and a secondary arc passage hole of the secondary anode, the wind channel communicates with the external gas source, and the secondary arc passage hole communicates with the generator outlet through a secondary tapered hole.

[0014] Further, the secondary anode includes a secondary arc passage hole, a secondary arc passage hole and a secondary tapered hole which are connected in series and sequentially increase, the taper of the secondary arc passage hole of the secondary anode is 1:(1.5-3.5), the taper of the secondary tapered hole is 1:(3.5-6.5), the inner diameter of the secondary arc passage hole is D, and the diameter of the transition arc passage hole is d, wherein D=1.2-1.8d.

[0015] Further, the gas path further includes a gas inlet hole penetrating the base, a buffer air cavity formed between the base and the insulating piece, an air passage hole penetrating the insulating piece, and a buffer air chamber jointly surrounded by the insulating piece, the sleeve and the primary anode, one end of the gas inlet hole communicates with the gas source, and the other end is connected in series with the buffer air cavity, the air passage hole and the buffer air chamber, the insulating piece is further provided with a ventilation hole which communicates the buffer air chamber with the arc cavity, and the buffer air chamber is connected with the secondary arc passage hole of the secondary anode through the wind channel of the primary anode and the thread of the transition anode.

[0016] Further, the angle between the axis of the ventilation hole and the axis direction of the outer cylinder is α, wherein 45°<α<75°.

[0017] Further, one end of the outer cylinder is fixedly installed opposite to the secondary anode by the end cover, and the other end is fixedly installed opposite to the base, an inner cylinder concentric with the outer cylinder is installed between the base and the end cover, the insulating piece is installed between the primary anode and the base, the cathode head is located in the inner cavity of the insulating piece and is fixedly installed opposite to the base through the cathode fixing sleeve and the cathode base, the inner water pipe is further sleeved in the cathode fixing sleeve, the inner water pipe divides the inner cavity of the cathode fixing sleeve into two parts, the inner cavity of the inner water pipe is communicated with the water inlet channel of the cathode base, and a through hole is arranged on the side of the inner water pipe close to the cathode head for communicating the inner cavity and the outer cavity of the inner water pipe.

[0018] Further, the total water inlet pipe and the total water outlet pipe of the cooling pipeline are arranged on the base, the total water inlet pipe is communicated with the inner cavity of the inner water pipe through the water inlet channel of the cathode base, the inner cavity of the inner water pipe is communicated with the outer cavity through the through hole, the outer cavity is communicated with the cooling cavity formed between the inner cylinder and the outer periphery of the insulating piece, the primary anode and the secondary anode and the end cover after penetrating the wall of the cathode base and the insulating piece, one end of the outer cylinder close to the end cover is provided with a cooling hole for communicating the cooling cavity and a backwater cavity, the backwater cavity is between the outer cylinder and the inner cylinder, and the backwater cavity is communicated with the total backwater pipe on the base.

[0019] Further, the outer periphery of the secondary anode is provided with a radially recessed groove, and the shape of the groove is consistent with the shapes of the secondary through-arc hole, the secondary falling-arc hole and the secondary taper hole in the center of the groove.

[0020] Further, the secondary anode is electrically connected with the anode cable penetrating the outer cylinder, and the cathode head is electrically connected with the cathode cable through the cathode base.

[0021] Further, the base and the outer cylinder are relatively fixed by the positioning snap spring.

[0022] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0023] (1). The utility model discloses an anode assembly, which is used in combination with a primary anode, a secondary anode and a transition anode, and is used in combination with two gas paths, so that the arc entering the transition through-arc hole and the secondary through-arc hole through the arc drawing cavity is strengthened, the arc is longer and larger, the arc is pushed to a farther end, the flame intensity is strengthened, and the working efficiency of the generator is improved.

[0024] (2). The utility model discloses a gas path, in particular a buffer air chamber and a buffer air cavity, which are used to stabilize the voltage and current of the gas provided by the gas source, so that the gas pressure received by the arc through the arc drawing cavity is more stable, and the stability of the flame combustion is ensured.

[0025] (3). The utility model discloses a cooling pipeline is set up, especially the inner chamber and the outer chamber of inner water pipe and the setting of cooling cavity and backwater cavity, the cooling effect of generator is greatly improved, the normal operation use of cathode head and anode assembly is ensured, and the service life of each component is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the right view of the utility model;

[0027] Figure 2 It is Figure 1 It is the section view of A-A in middle;

[0028] Figure 3 It is Figure 1 It is the section view of B-B in middle;

[0029] Figure 4 It is Figure 2 It is the partial enlarged structure schematic diagram of C in middle;

[0030] Figure 5 It is Figure 3 It is the partial enlarged structure schematic diagram of D in middle.

[0031] In the drawing, 100, end cover;201, primary anode;2011, air duct;202, transition anode;2021, screw thread;2022, taper surface;2023, transition arc hole;203, secondary anode;2031, secondary arc hole;2032, secondary arc hole;2033, secondary taper hole;2034, cooling cavity;301, outer cylinder;302, inner cylinder;3021, cooling hole;303, sleeve;304, backwater cavity;400, insulating part;401, ventilation hole;402, buffer air chamber;403, air hole;500, cathode head;600, cathode fixing sleeve;700, cathode seat;701, water inlet channel;800, base;801, air inlet hole;802, buffer air cavity;803, total water inlet pipe;804, total water outlet pipe;900, inner water pipe. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] The drawings are only for illustrative description, and cannot be understood as the limitation of the patent;

[0034] The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It also will be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0035] The following description refers to the accompanying drawings. Wherever possible, the same reference numbers in different drawings refer to the same or similar elements. The following exemplary embodiments are described herein with reference to the accompanying drawings, which are not necessarily drawn to scale, in which:

[0036] In the description of the present application, it should be understood that the terms "first", "second", "third" and the like are used only to distinguish similar objects from each other, and do not necessarily indicate or imply a relative importance. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The "and / or" describes the association between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B, and the existence of B alone. The character " / " generally represents a "or" relationship between the associated objects. The utility model is further described below in conjunction with the drawings and examples.

[0038] In order to solve the limitations of the prior art, the embodiment provides a technical scheme, which is further described below in conjunction with the drawings and examples.

[0039] The utility model mainly aims at the high temperature breakdown damage of cathode head 500 and anode assembly caused by the unsatisfactory cooling effect and the low flame intensity caused by the short arc drop distance of the plasma generator in the prior art, and improves the internal structure of the plasma generator.

[0040] Referring to the drawings Figure 1 , 2And 4, an efficient double anode plasma generator, comprising: an outer cylinder 301 for mounting and limiting the anode assembly; specifically, the anode assembly comprises a primary anode 201, a transition anode 202 and a secondary anode 203, wherein the secondary anode 203 is fixedly mounted opposite to the outer cylinder 301, the primary anode 201 is fixedly mounted opposite to the secondary anode 203, and the transition anode 202 is concentrically mounted with the primary anode 201 and the secondary anode 203 and simultaneously communicates with the arc passage hole of the primary anode 201 and the secondary anode 203; here, it can be understood that the primary anode 201 and the secondary anode 203 are concentrically mounted, and the transition anode 202 is inlaidly mounted at the center of the primary anode 201 and the secondary anode 203 and has two ends mounted with the primary anode 201 and the secondary anode 203 respectively. The end surface of the transition anode 202 is provided with a tapered circular hole 2022 which is inwardly recessed and contracted, and a transition arc passage hole 2023 which communicates with the tapered circular hole 2022, and the outer periphery of the transition anode 202 is provided with a thread 2021 which is used for communicating with the air duct 2011 provided in the primary anode 201 and the secondary arc passage hole 2031 of the secondary anode 203; here, it can be understood that the communication distance of the thread 2021 is realized by the gap of the thread 2021 hole, the air duct 2011 communicates with the external air source, and the secondary arc passage hole 2031 communicates with the generator outlet through the secondary tapered hole 2033. The secondary anode 203 comprises the secondary arc passage hole 2031, the secondary arc falling hole 2032 and the secondary tapered hole 2033 which are connected in series and sequentially increase in size, the taper of the secondary arc falling hole 2032 of the secondary anode 203 is 1:(1.5-3.5), preferably 1:2, the taper of the secondary tapered hole 2033 is 1:(3.5-6.5), preferably 1:5, the inner diameter of the secondary arc passage hole 2031 is D, the diameter of the transition arc passage hole 2023 is d, and D=1.2-1.8d, preferably D=1.5d. The outer periphery of the secondary anode 203 is provided with a radially recessed groove, and the shape of the groove is consistent with the shapes of the secondary arc passage hole 2031, the secondary arc falling hole 2032 and the secondary tapered hole 2033 in the center thereof; here, it can be understood that the groove provided on the outer periphery wall of the secondary anode 203 is to keep the wall thickness of the secondary anode 203 within a reasonable range, too thick can easily affect the cooling effect, and too thin can easily cause arc falling breakdown and affect the service life.

[0041] Referring to the accompanying drawings Figure 2 And 3 The cathode seat 700 is fixedly mounted opposite to the outer cylinder 301 through the insulating piece 400 and limits the installation of the cathode head 500, so that the cavity formed between the anode assembly and the cathode head 500 forms an arc drawing cavity; the secondary anode 203 is electrically connected with the anode cable penetrating through the outer cylinder 301, and the cathode head 500 is electrically connected with the cathode cable through the cathode seat 700.

[0042] Referring to the accompanying drawings Figure 1 、 3And 5, gas circuit, including two ways, one way to set in the insulating part 400 to communicate with the external gas source and arc cavity, for arc cavity to provide stable wind pressure, another way to set in the anode assembly to communicate with the external gas source and fall arc channel; gas circuit also includes the air inlet hole 801 through the base 800, the buffer wind cavity 802 formed between the base 800 and the insulating part 400, the air hole 403 through the insulating part 400 and the buffer wind chamber 402 surrounded by the insulating part 400 and the sleeve 303 and the first anode 201, the air inlet hole 801 one end and the gas source communication, the other end in series communication buffer wind cavity 802, air hole 403 and buffer wind chamber 402, the insulating part 400 also set up the air hole 401 communication buffer wind chamber 402 and arc cavity, buffer wind chamber 402 through the first anode 201 air duct 2011 via the transition anode 202 screw 2021 and the second anode 203 second arc hole 2031 communication. The axis of the air hole 401 and the axis direction of the outer cylinder 301 angle is alpha, wherein 45° < alpha < 75°, here preferably alpha = 60°, the inclined direction of the air hole 401, is advantageous to strengthen the flow of gas while making the gas into the arc cavity through the air hole 401 presents helical along the cathode fixed sleeve 600 forward, improve the arc effect.

[0043] Referring to the accompanying drawings Figure 1 , 2and 4, cooling pipeline, including total water inlet pipe 803 and total water outlet pipe, total water inlet pipe 803 and total water outlet pipe are connected through the cooling circuit in series, and the cooling circuit is used for cooling cathode head 500 and anode assembly in turn;One end of outer cylinder 301 is sealed and fixedly installed with secondary anode 203 through end cover 100, and the other end is sealed and fixedly installed with base 800, and base 800 is fixedly installed with outer cylinder 301 through positioning snap spring. Inner cylinder 302 is concentric with outer cylinder 301 and is sealed and installed between base 800 and end cover 100, insulation piece 400 is sealed and installed between primary anode 201 and base 800, cathode head 500 is located in the inner cavity of insulation piece 400 and is sealed and fixedly installed with base 800 through cathode fixing sleeve 600 and cathode seat 700, cathode fixing sleeve 600 is further sleeved with inner water pipe 900, the inner water pipe 900 divides the inner cavity of cathode fixing sleeve 600 into two parts, the inner cavity of inner water pipe 900 is communicated with water inlet channel 701 of cathode seat 700, and the side of inner water pipe 900 close to cathode head 500 is provided with a through hole for communicating the inner cavity and the outer cavity of inner water pipe 900, and the outer cavity is the annular cavity formed between the outer periphery of inner water pipe 900 and cathode fixing sleeve 600. Total water inlet pipe 803 and total water outlet pipe 804 of cooling pipeline are arranged on base 800, total water inlet pipe 803 is communicated with the inner cavity of inner water pipe 900 through water inlet channel 701 of cathode seat 700, the inner cavity of inner water pipe 900 is communicated with the outer cavity through the through hole, the outer cavity is communicated with cooling cavity 2034 formed between inner cylinder 302 and the outer periphery of insulation piece 400, primary anode 201 and secondary anode 203 and end cover 100 after penetrating through the wall of cathode seat 700 and insulation piece 400, and the end of outer cylinder 301 close to end cover 100 is provided with cooling hole 3021 for communicating cooling cavity 2034 and water return cavity 304, water return cavity 304 is between outer cylinder 301 and inner cylinder 302, and water return cavity 304 is communicated with total water outlet pipe on base 800.

[0044] The utility model discloses a plasma generator, when using, anode cable and cathode cable are electrified, and the arc is generated between cathode head 500 and transition anode 202, and simultaneously, the gas source is opened, and the gas enters buffer air chamber 802 through the air inlet hole 801 of base 800, then enters buffer air chamber 402 through the air hole 403 of insulating part 400, and the gas of buffer air chamber 402 enters the arc pulling chamber through the air vent 401, and another part enters the secondary arc passing hole 2031 of secondary anode 203 through the air duct 2011 of primary anode 201 with the help of the thread 2021 aperture of transition anode 202, and simultaneously, with the help of secondary arc falling hole 2032 and secondary taper hole 2033 of secondary anode 203, the arc is enlarged and lengthened.

[0045] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0046] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high efficiency dual anode plasma generator characterized by, The application relates to a generator, which comprises the following parts: an outer cylinder (301) for mounting and limiting an anode assembly; a cathode seat (700) fixedly mounted on the outer cylinder (301) through an insulating part (400) and limiting a cathode head (500) so that a cavity formed between the anode assembly and the cathode head (500) forms a striking arc cavity; an air path, which comprises two paths, one of which is arranged on the insulating part (400) to connect an external air source with the striking arc cavity and provide stable air pressure for the striking arc cavity, and the other of which is arranged on the anode assembly to connect the external air source with a falling arc channel; a cooling pipeline, which comprises a total water inlet pipe (803) and a total water return pipe, and the total water inlet pipe (803) and the total water return pipe are connected through a cooling circuit in series, which successively cools the cathode head (500) and the anode assembly; the anode assembly comprises a primary anode (201), a transition anode (202) and a secondary anode (203), the secondary anode (203) is fixedly mounted on the outer cylinder (301), the primary anode (201) is fixedly mounted on the secondary anode (203), and the transition anode (202) is concentrically mounted on the primary anode (201) and the secondary anode (203) and simultaneously communicates with an arc passing hole of the primary anode (201) and the secondary anode (203).

2. The high efficiency dual anode plasma generator of claim 1, wherein, an end surface of the transition anode (202) is provided with a tapered circular hole which is inwardly recessed and shrunk, and a transition arc passing hole (2023) which communicates with the tapered circular hole, and an outer periphery of the transition anode (202) is provided with a thread (2021) for connecting a wind channel (2011) arranged in the primary anode (201) and a secondary arc passing hole (2031) of the secondary anode (203), the wind channel (2011) communicates with an external air source, and the secondary arc passing hole (2031) communicates with a generator outlet through a secondary tapered hole (2033).

3. The high efficiency dual anode plasma generator of claim 2, wherein, the secondary anode (203) comprises a secondary arc passing hole (2031), a secondary falling arc hole (2032) and a secondary tapered hole (2033) which are connected in series and gradually increase in size, a taper of the secondary falling arc hole (2032) of the secondary anode (203) is 1:(1.5-3.5), a taper of the secondary tapered hole (2033) is 1:(3.5-6.5), an inner diameter of the secondary arc passing hole (2031) is D, and a diameter of the transition arc passing hole (2023) is d, wherein D=1.2-1.8d.

4. The high efficiency dual anode plasma generator of claim 3, wherein, The air path further comprises an air inlet hole (801) penetrating through the base (800), a buffer air cavity (802) formed between the base (800) and the insulating member (400), an air passage hole (403) penetrating through the insulating member (400), and a buffer air chamber (402) jointly formed between the insulating member (400), the sleeve (303) and the primary anode (201). One end of the air inlet hole (801) is in communication with an air source, and the other end is in series communication with the buffer air cavity (802), the air passage hole (403) and the buffer air chamber (402). The insulating member (400) is further provided with a ventilation hole (401) in communication with the buffer air chamber (402) and an arc drawing cavity. The buffer air chamber (402) is in communication with the secondary arc passage hole (2031) of the secondary anode (203) through the air duct (2011) of the primary anode (201) and the thread (2021) of the transition anode (202).

5. The high efficiency dual anode plasma generator of claim 4, wherein, The angle between the axis of the ventilation hole (401) and the axis direction of the outer cylinder (301) is α, wherein 45°<α<75°.

6. The high efficiency dual anode plasma generator of claim 5, wherein, One end of the outer cylinder (301) is fixedly installed opposite to the secondary anode (203) through the end cover (100), and the other end is fixedly installed opposite to the base (800). The inner cylinder (302) concentric with the outer cylinder (301) is installed between the base (800) and the end cover (100). The insulating member (400) is installed between the primary anode (201) and the base (800). The cathode head (500) is located in the inner cavity of the insulating member (400) and is fixedly installed opposite to the base (800) through the cathode fixing sleeve (600) and the cathode base (700). The inner cathode fixing sleeve (600) is further sleeved with the inner water pipe (900), which divides the inner cavity of the cathode fixing sleeve (600) into two parts. The inner cavity of the inner water pipe (900) is in communication with the water inlet channel (701) provided by the cathode base (700). The side of the inner water pipe (900) close to the cathode head (500) is provided with a through hole for communication between the inner cavity and the outer cavity of the inner water pipe (900). The outer cavity is an annular cavity formed between the outer periphery of the inner water pipe (900) and the cathode fixing sleeve (600).

7. The high efficiency dual anode plasma generator of claim 6, wherein, The total water inlet pipe (803) and the total water outlet pipe (804) of the cooling pipeline are both provided on the base (800). The total water inlet pipe (803) is in communication with the inner cavity of the inner water pipe (900) through the water inlet channel (701) of the cathode base (700). The inner cavity of the inner water pipe (900) is in communication with the outer cavity through the through hole. The outer cavity is in communication with the cooling cavity (2034) formed between the inner cylinder (302), the insulating member (400), the primary anode (201), the secondary anode (203) and the end cover (100) after penetrating through the walls of the cathode base (700) and the insulating member (400). The end of the outer cylinder (301) close to the end cover (100) is provided with a cooling hole (3021) for communication between the cooling cavity (2034) and the backwater cavity (304). The backwater cavity (304) is between the outer cylinder (301) and the inner cylinder (302). The backwater cavity (304) is in communication with the total backwater pipe on the base (800).

8. The high efficiency dual anode plasma generator of claim 2, wherein, The outer periphery of the secondary anode (203) is provided with a radially recessed groove, which is shaped in accordance with the shapes of the secondary central through-arc hole (2031), the secondary central falling-arc hole (2032) and the secondary central taper hole (2033).

9. The high efficiency dual anode plasma generator of claim 4, wherein, The secondary anode (203) is electrically connected with an anode cable penetrating through the outer cylinder (301), and the cathode head (500) is electrically connected with a cathode cable through a cathode seat (700).

10. The high efficiency dual anode plasma generator of claim 9, wherein, The base (800) and the outer cylinder (301) are relatively fixed through a positioning circlip.

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