CN113041805A

CN113041805A - Plasma generation technology and device for degrading ozone by self-generated heat

Info

Publication number: CN113041805A
Application number: CN202110272894.XA
Authority: CN
Inventors: 张冠军; 张波; 孙宇豪; 王晨旭; 常正实
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 2021-03-14
Filing date: 2021-03-14
Publication date: 2021-06-29
Anticipated expiration: 2041-03-14
Also published as: CN113041805B

Abstract

The invention discloses a plasma generation technology and a device for degrading ozone by self-generated heat. The invention discloses a plasma generation technology for degrading ozone based on self-generated heat, which comprises the following steps: active particles in the discharge plasma are utilized to kill germs in the air, meanwhile, heat generated in a discharge area is conducted to an airflow downstream area, and residual ozone is degraded by utilizing a formed high-temperature area. Based on the process, the invention discloses a plurality of sets of plasma devices for degrading ozone by self-generating heat, which comprise a spray gun type plasma device, a knife type plasma device and a dragon roll type plasma device, wherein catalysts or thermal decomposition components are not required to be additionally added, the problems of easy saturation and inactivation of the catalysts are avoided, the discharged heat is fully utilized, the integrated treatment of gas sterilization and ozone decomposition is realized, and the advantages of high efficiency, energy conservation, stable process and compact structure are achieved.

Description

Plasma generation technology and device for degrading ozone by self-generated heat

Technical Field

The invention relates to the technical field of plasma generating devices, in particular to a plasma generating technology and a plasma generating device for degrading ozone by self-generated heat.

Background

The Atmospheric Pressure Low Temperature Plasma (APLTP) is rich in high-energy electrons (1-10eV), ions, excited atomic molecules, free radicals and other oxygen-containing and nitrogen-containing active particles (ROS and RNS), and has been deeply applied to the fields of environmental protection, material modification, energy conversion, aerospace and the like as an efficient molecular activation means. In the field of indoor air purification, charged particles and oxidizing molecules in APLTP can quickly inactivate pathogenic microorganisms suspended in air, so that the APLTP is a dry treatment technology without material consumption and is expected to replace the traditional physical adsorption method and disinfectant spraying method.

It is worth noting that a certain concentration of ozone remains in the air treated by the APLTP, which greatly limits the popularization and application of the APLTP technology in indoor air purification. Research data show that APLTP treatment introduces 0.3-10ppm ozone into the air, and the specific concentration is different due to discharge type and consumed power, but is far higher than the limit of indoor ozone concentration in national standard (not exceeding 0.1 ppm). In order to reduce the concentration of ozone in the exhaust gas, developers usually adopt two treatment modes, namely catalytic adsorption degradation and thermal decomposition. The catalytic adsorption degradation method is a technical means for adsorbing and degrading residual ozone in tail gas by using a porous material loaded with special metal, metal oxide or photocatalyst, but a large number of engineering practices indicate that the method has the defects of easy saturation and quick failure, namely the porous catalyst is adsorbed and saturated after normal operation for 1-2 hours, and the loaded catalyst is gradually failed after the catalyst is used for 2-4 months. The other heating decomposition method is mostly applied to the field of industrial waste gas purification, and usually the tail gas is discharged after passing through a high-temperature area of 200-300 ℃, although the high-temperature heating is helpful for degrading ozone, the method obviously has higher energy consumption. Therefore, the further popularization and application of APLTP in the field of air purification urgently needs to find an ozone removing way which is long-acting, stable, energy-saving and environment-friendly.

In order to solve the problems, the invention provides a technical idea of degrading ozone by utilizing self-generated heat of discharge, namely, waste heat generated by discharge is guided out to form a local high-temperature region, and purified air is guided to flow through the high-temperature region so as to achieve the purpose of degrading ozone. Based on the principle, the invention further discloses three plasma device structures with low ozone residue.

Disclosure of Invention

The invention aims to provide a plasma generating device for degrading ozone by self-generated heat, and solves the problems of high efficiency, stability, energy conservation and environmental protection of an ozone removing technology.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention relates to a plasma generating device for degrading ozone by self-generated heat.A principle of air sliding arc discharge is adopted after air to be treated enters the plasma generating device for degrading ozone by self-generated heat; firstly, air is sterilized and disinfected under the action of active particles, and then ozone is degraded at high temperature generated after self-discharge, so that air purification is realized.

Preferably, the device comprises a spray gun type structure, wherein the spray gun type structure comprises a ceramic heat insulation cover, a grounding electrode, a high-voltage electrode, a spiral heat conducting fin, an airflow rotator, an insulation sleeve and a grounding fixed support; the high-voltage electrode is arranged at the central position of the airflow rotator, the airflow rotator is arranged inside the insulating sleeve, and the insulating sleeve is arranged on the grounding fixed support; the end part of the grounding electrode is in threaded connection with the grounding fixing support, and the airflow rotator and the high-voltage electrode are positioned in the grounding electrode; the spiral heat conducting sheet is sleeved outside the grounding electrode, and the ceramic heat insulating cover is sleeved outside the spiral heat conducting sheet.

Preferably, the high-voltage electrode, the airflow rotator and the insulating sleeve are all fixedly arranged on the grounding fixed support.

Preferably, the grounding electrode is internally provided with a step, and the step is matched with the end part of the airflow spinner and used for locking the airflow spinner and the high-voltage electrode.

Preferably, the air conditioner comprises a knife-type structure, wherein the knife-type structure comprises a heat shield, a grounding blade electrode, a high-voltage blade electrode, a grounding side rubber gasket, a high-voltage side rubber gasket, a first fixing clamp plate, a second fixing clamp plate, a first guide plate, a second guide plate, a third guide plate, a fourth guide plate, a first fixing bolt, a second fixing bolt, a third fixing bolt, a fourth fixing bolt, a high-voltage wiring terminal, a low-voltage wiring terminal and an air inlet pipe; the first fixing clamp plate and the second fixing clamp plate clamp the grounding blade electrode, the high-voltage blade electrode and the air inlet pipe in the middle, and two sides of the grounding blade electrode, the high-voltage blade electrode and the air inlet pipe are respectively sealed by a grounding side rubber gasket and a high-voltage side rubber gasket to prevent air leakage; the first guide plate, the second guide plate, the third guide plate and the fourth guide plate are tightly attached to the outer sides of the first fixing clamp plate and the second fixing clamp plate, the heat shield is sleeved on the outer sides of the first guide plate, the second guide plate, the third guide plate and the fourth guide plate, and the first fixing clamp plate and the second fixing clamp plate are fixedly connected together through the first fixing bolt, the second fixing bolt, the third fixing bolt and the fourth fixing bolt; the high-voltage wiring terminal is located on the high-voltage blade electrode, the low-voltage wiring terminal is located on the grounding blade electrode, and the air inlet pipe is arranged in a power generation interval formed between the high-voltage blade electrode and the grounding blade electrode.

Preferably, the device comprises a dragon-rolled structure, wherein the dragon-rolled structure comprises a heat insulation cover, a gas dispersing cover, a spiral heat conducting fin, a heat conducting wall, a spiral air inlet, a high-voltage lead inlet, a main air inlet, an insulation base plate, a ventilation chuck, a grounding spiral electrode and a high-voltage electrode; the outer side of the heat conducting wall is sleeved with a spiral heat conducting fin; the upper end of the heat conducting wall is provided with a ventilating chuck, and the lower end of the heat conducting wall is provided with an insulating chassis; the air dispersing cover is fixed at the top of the ventilation chuck, and the heat insulation cover is sleeved outside the spiral heat conducting fins; the outer side wall of the ventilation chuck is provided with a spinning air inlet, and the bottom of the insulation chassis is provided with a plurality of main air inlets and high-voltage lead inlets; the heat conducting wall is internally provided with a grounding spiral electrode, the bottom of the grounding spiral electrode is connected with a high-voltage electrode, and the high-voltage electrode is connected with the high-voltage lead inlet.

Preferably, the ventilation chuck is reversely buckled on the insulating base plate, and a gap of 1-3 mm is reserved between the high-voltage electrode and the end part of the grounding spiral electrode.

Compared with the prior art, the invention has the beneficial technical effects that:

the invention provides a plasma generation technical scheme for degrading ozone based on self-generated heat, which can achieve the aims of sterilization and disinfection and ozone elimination at the same time. In the process of generating plasma by gas discharge, not only can rich oxidative active particles be generated, but also the vibration and rotation energy of neutral gas molecules can be increased, and macroscopically, the gas temperature is increased; if the high heat generated by the discharge can be conducted out, so that the air containing pathogenic bacteria firstly passes through the active particle action area and then flows through the high-temperature area formed by heat conduction, the sterilization and the ozone elimination can be realized in the same plasma reactor. Based on the technical principle of self-heat-generation ozone degradation, the invention adopts air sliding arc discharge, and the air sliding arc discharge has a local heat balance state, a non-balance state with high chemical activity and a transition state between the local heat balance state and the non-balance state, and is beneficial to separating discharge to generate active particles and self heat. The invention has no defects of easy saturation and quick failure of the catalyst, fully utilizes the heat accompanied by discharge and improves the energy utilization efficiency of the device.

Drawings

The invention is further illustrated in the following description with reference to the drawings.

FIG. 1 is a schematic diagram of the sterilization and self-heating ozone degradation technique of the present invention;

FIG. 2 is a perspective view and an external view of the structure of the lance-type reactor of the present invention;

FIG. 3 is an exploded view of the internal structure of the lance-type reactor structure of the present invention;

FIG. 4 is a perspective view of a knife reactor configuration of the present invention;

FIG. 5 is a front view of a knife reactor configuration of the present invention;

FIG. 6 is a top view of a knife reactor configuration of the present invention;

FIG. 7 is an expanded view and an external view of a structure of a cyclone reactor according to the present invention;

FIG. 8 is a diagram of the internal major components of a cyclone reactor configuration of the present invention;

FIG. 9 is a perspective view of a discharge unit inside the structure of a cyclone reactor according to the present invention;

description of reference numerals: 1. a spray gun type structure; 2. a knife structure; 3. a dragon roll type structure;

1-1, a ceramic heat shield; 1-2, a ground electrode; 1-3, high voltage electrode; 1-4, spiral heat conducting fins; 1-5, an airflow rotator; 1-6, an insulating sleeve; 1-7, a grounding fixed bracket;

2-1, a heat shield; 2-2, grounding the blade electrode; 2-3, high voltage blade electrode; 2-4, a rubber gasket at the grounding side; 2-5, high-pressure side rubber gasket; 2-6, a first fixed splint; 2-7, a second fixed splint; 2-8, a first baffle; 2-9, a second baffle; 2-10, a third baffle; 2-11, a fourth baffle; 2-12, a first fixing bolt; 2-13, a second fixing bolt; 2-14, a third fixing bolt; 2-15, a fourth fixing bolt; 2-16, high voltage binding post; 2-17, low-voltage wiring terminal; 2-18 parts of an air inlet pipe;

3-1, heat shield; 3-2, a gas dispersing cover; 3-3, spiral heat conducting fins; 3-4, heat conducting walls; 3-5, a spinning air inlet; 3-6, high voltage lead inlet; 3-7, a primary air inlet; 3-8, insulating the chassis; 3-9, a vent chuck; 3-10, grounding spiral electrode; 3-11, high voltage electrode.

Detailed Description

As shown in figure 1, the air to be treated enters the plasma generating device for self-generating heat and degrading ozone, and the air sliding arc discharge principle is adopted; firstly, air is sterilized and disinfected under the action of active particles, and then ozone is degraded at high temperature generated after self-discharge, so that air purification is realized. Compared with the existing technical ideas of catalytic adsorption degradation and pyrolysis, the method provided by the invention has the advantages that the defects of easy saturation and quick failure of the catalyst are avoided, the heat accompanied by discharge is fully utilized, and the energy utilization efficiency of the device is improved.

As shown in fig. 2-3, the structure comprises a spray gun type structure 1, wherein the spray gun type structure 1 comprises a ceramic heat shield 1-1, a grounding electrode 1-2, a high-voltage electrode 1-3, a spiral heat conducting fin 1-4, an airflow rotator 1-5, an insulating sleeve 1-6 and a grounding fixed support 1-7; the high-voltage electrode 1-3 is arranged at the center of the airflow rotator 1-5, the airflow rotator 1-5 is arranged inside the insulating sleeve 1-6, and the insulating sleeve 1-6 is arranged on the grounding fixed support 1-7; the end part of the grounding electrode 1-2 is in threaded connection with the grounding fixing support 1-7, and the airflow rotator 1-5 and the high-voltage electrode 1-3 are positioned inside the grounding electrode 1-2; the spiral heat conducting fins 1-4 are sleeved outside the grounding electrode 1-2, and the ceramic heat insulation cover 1-1 is sleeved outside the spiral heat conducting fins 1-4. The high-voltage electrode 1-3, the airflow rotator 1-5 and the insulating sleeve 1-6 are all fixedly arranged on the grounding fixed support 1-7. The grounding electrode 1-2 is internally provided with a step, and the step is matched with the end part of the airflow rotator 1-5 and used for locking the airflow rotator 1-5 and the high-voltage electrode 1-3.

When the spray gun type structure device works, the high-voltage electrode 1-3 is connected with external high voltage through a round hole below the insulating sleeve 1-6, the grounding fixed support 1-7 is directly connected with ground potential, and the top of the high-voltage electrode 1-3 and the outlet of the grounding electrode 1-2 are punctured to generate arc discharge. Air to be treated enters from small holes at the bottom edge of the insulating sleeve 1-6, passes through the airflow rotator 1-5, starts to rotate and relatively uniformly spreads to the inside of the whole grounding electrode 1-2, and an arc wire is lengthened, so that discharge is converted into a non-equilibrium state from a local thermodynamic equilibrium state, and further rich active particles containing oxygen and nitrogen are generated to play a role in sterilization and disinfection. Meanwhile, the spiral heat conducting fins 1-4 conduct and diffuse the high temperature on the grounding electrode 1-2 to the inside of the whole ceramic heat insulation cover 1-1, the air flow after plasma treatment collides with the ceramic heat insulation cover 1-1 and diffuses backwards along the inner wall of the ceramic heat insulation cover 1-1, and when the air flow passes through a high temperature area formed by the spiral heat conducting fins 1-4, the residual ozone starts to degrade.

As shown in fig. 4, the air conditioner comprises a knife structure 2, wherein the knife structure 2 comprises a heat shield 2-1, a grounding blade electrode 2-2, a high-voltage blade electrode 2-3, a grounding side rubber gasket 2-4, a high-voltage side rubber gasket 2-5, a first fixing splint 2-6, a second fixing splint 2-7, a first guide plate 2-8, a second guide plate 2-9, a third guide plate 2-10, a fourth guide plate 2-11, a first fixing bolt 2-12, a second fixing bolt 2-13, a third fixing bolt 2-14, a fourth fixing bolt 2-15, a high-voltage binding post 2-16, a low-voltage binding post 2-17 and an air inlet pipe 2-18; the first fixing splint 2-6 and the second fixing splint 2-7 clamp the grounding blade electrode 2-2, the high-voltage blade electrode 2-3 and the air inlet pipe 2-18 in the middle, and the two sides are respectively sealed by a grounding side rubber gasket 2-4 and a high-voltage side rubber gasket 2-5 to prevent air leakage; the first guide plate 2-8, the second guide plate 2-9, the third guide plate 2-10 and the fourth guide plate 2-11 are tightly attached to the outer sides of the first fixing clamp plate 2-6 and the second fixing clamp plate 2-7, the heat insulation cover 2-1 is sleeved on the outer sides of the first guide plate 2-8, the second guide plate 2-9, the third guide plate 2-10 and the fourth guide plate 2-11, and the first fixing bolt 2-12, the second fixing bolt 2-13, the third fixing bolt 2-14 and the fourth fixing bolt 2-15 fixedly connect the first fixing clamp plate 2-6 and the second fixing clamp plate 2-7 together. The high-voltage wiring terminal 2-16 is located on the high-voltage blade electrode 2-3, the low-voltage wiring terminal 2-17 is located on the grounding blade electrode 2-2, and the air inlet pipe 2-18 is installed in a power generation interval formed between the high-voltage blade electrode 2-3 and the grounding blade electrode 2-2.

When the blade-type structure device normally works, the grounding blade electrode 2-2 and the high-voltage blade electrode 2-3 in the blade-type structure device are respectively connected with ground potential and high voltage from the low-voltage wiring terminal 2-17 and the high-voltage wiring terminal 2-16, and arc discharge is formed by breakdown at the minimum distance between the two blade electrodes. Air enters a discharge interval from the air inlet pipes 2 to 18, the blowing arc filaments slide upwards, a partial equilibrium state of discharge is changed into a non-equilibrium state, a large amount of oxidative active particles are generated, and sterilization is realized. Fig. 5 and 6 show a front view and a top view, respectively, of a knife-type structure device. It can be seen that when the gas flow reaches the top of the heat shield 2-1, it will flow down along its two walls and be confined by the four baffles to the outside of the discharge breakdown region. Since the heat generated by the gas discharge penetrates through the fixing splint to form a local high temperature region, the residual ozone in the air is automatically degraded when the gas flows through the region.

As shown in fig. 7-9, comprising a rolled structure 3, wherein the rolled structure 3 comprises a heat shield 3-1, a gas dispersing shield 3-2, a spiral heat conducting fin 3-3, a heat conducting wall 3-4, a spiral air inlet 3-5, a high-voltage lead inlet 3-6, a main air inlet 3-7, an insulating chassis 3-8, a ventilation chuck 3-9, a grounding spiral electrode 3-10 and a high-voltage electrode 3-11; spiral heat conducting fins 3-3 are sleeved outside the heat conducting walls 3-4; the upper end of the heat conducting wall 3-4 is provided with a ventilating chuck 3-9, and the lower end is provided with an insulating chassis 3-8; the air dispersing cover 3-2 is fixed at the top of the ventilating chuck 3-9, and the heat insulation cover 3-1 is sleeved outside the spiral heat conducting fin 3-3; the outer side wall of the ventilation chuck 3-9 is provided with a spiral air inlet 3-5, and the bottom of the insulation chassis 3-8 is provided with a plurality of main air inlets 3-7 and high-voltage lead inlets 3-6; the heat conducting wall 3-4 is internally provided with a grounding spiral electrode 3-10, the bottom of the grounding spiral electrode 3-10 is connected with a high-voltage electrode 3-11, and the high-voltage electrode 3-11 is connected with the high-voltage lead inlet 3-6. The ventilation chuck 3-9 is reversely buckled on the insulation base plate 3-8, and a gap of 1-3 mm is reserved between the high-voltage electrode 3-11 and the end part of the grounding spiral electrode 3-10 by the ventilation chuck 3-9.

When the high-voltage grounding electrode works, the high-voltage electrode 3-11 is connected to a high-voltage power supply from a high-voltage lead inlet 3-6 of the insulating chassis 3-8, and the grounding spiral electrode 3-10 is connected with an external ground potential through the ventilation chuck 3-9 and the spin-on air inlet 3-5; air to be treated enters the ventilating chuck 3-9 from the main air inlet 3-7 and forms a small tornado together with air flow entering from the side-spinning air inlet 3-5. The small tornado can not only elongate arc wires to promote the discharge to be converted to a non-equilibrium state, but also uniformly diffuse the heat generated by the discharge to the wall of the ventilating chuck 3-9 and conduct the heat out through the spiral heat conducting sheet 3-3. The sterilized air is diffused into the whole heat insulation cover 3-1 from the air diffusion cover 3-2 and flows downwards along the high-temperature spiral heat conducting fins 3-3, and in the process, residual ozone waste heat in the air is gradually decomposed.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. A plasma generation technology for degrading ozone by self-generated heat is characterized in that: after the air to be treated enters a plasma generating device for degrading ozone by self-generated heat, adopting an air sliding arc discharge principle; firstly, air is sterilized and disinfected under the action of active particles, and then ozone is degraded at high temperature generated after self-discharge, so that air purification is realized.

2. The self-generating heat ozone-degrading plasma generating technology process as claimed in claim 1, wherein the self-generating heat ozone-degrading plasma generating device is characterized in that: the device comprises a spray gun type structure (1), wherein the spray gun type structure (1) comprises a ceramic heat insulation cover (1-1), a grounding electrode (1-2), a high-voltage electrode (1-3), a spiral heat conducting fin (1-4), an airflow rotator (1-5), an insulation sleeve (1-6) and a grounding fixed support (1-7); the high-voltage electrode (1-3) is arranged at the center of the airflow rotator (1-5), the airflow rotator (1-5) is arranged inside the insulating sleeve (1-6), and the insulating sleeve (1-6) is arranged on the grounding fixed support (1-7); the end part of the grounding electrode (1-2) is in threaded connection with the grounding fixing support (1-7), and the airflow rotator (1-5) and the high-voltage electrode (1-3) are positioned in the grounding electrode (1-2); the spiral heat conducting fins (1-4) are sleeved outside the grounding electrodes (1-2), and the ceramic heat insulating cover (1-1) is sleeved outside the spiral heat conducting fins (1-4).

3. A self-generating thermal ozone-degrading plasma generating apparatus according to claim 2, further comprising: the high-voltage electrode (1-3), the airflow rotator (1-5) and the insulating sleeve (1-6) are all fixedly arranged on the grounding fixed support (1-7).

4. A self-generating thermal ozone-degrading plasma generating apparatus according to claim 2, further comprising: the grounding electrode (1-2) is internally provided with a step, and the step is matched with the end part of the airflow spinner (1-5) and used for locking the airflow spinner (1-5) and the high-voltage electrode (1-3).

5. The self-generating heat ozone-degrading plasma generating technology process as claimed in claim 1, wherein the self-generating heat ozone-degrading plasma generating device is characterized in that: comprises a knife type structure (2), the knife type structure (2) comprises a heat shield (2-1), a grounding blade electrode (2-2), a high-voltage blade electrode (2-3), a grounding side rubber gasket (2-4), a high-voltage side rubber gasket (2-5), a first fixed splint (2-6), a second fixed splint (2-7), a first guide plate (2-8) and a second guide plate (2-9), the air inlet pipe comprises a third guide plate (2-10), a fourth guide plate (2-11), a first fixing bolt (2-12), a second fixing bolt (2-13), a third fixing bolt (2-14), a fourth fixing bolt (2-15), a high-voltage wiring terminal (2-16), a low-voltage wiring terminal (2-17) and an air inlet pipe (2-18); the grounding blade electrode (2-2), the high-voltage blade electrode (2-3) and the air inlet pipe (2-18) are clamped in the middle by the first fixing clamp plate (2-6) and the second fixing clamp plate (2-7), and two sides of the grounding blade electrode, the high-voltage blade electrode and the air inlet pipe are respectively sealed by a grounding side rubber gasket (2-4) and a high-voltage side rubber gasket (2-5) to prevent air leakage; the first guide plate (2-8), the second guide plate (2-9), the third guide plate (2-10) and the fourth guide plate (2-11) are tightly attached to the outer sides of the first fixing clamp plate (2-6) and the second fixing clamp plate (2-7), the heat insulation cover (2-1) is sleeved on the outer sides of the first guide plate (2-8), the second guide plate (2-9), the third guide plate (2-10) and the fourth guide plate (2-11), and the first fixing bolt (2-12), the second fixing bolt (2-13), the third fixing bolt (2-14) and the fourth fixing bolt (2-15) fixedly connect the first fixing clamp plate (2-6) and the second fixing clamp plate (2-7) together; the high-voltage wiring terminal (2-16) is located on the high-voltage blade electrode (2-3), the low-voltage wiring terminal (2-17) is located on the grounding blade electrode (2-2), and the air inlet pipe (2-18) is arranged in a power generation interval formed between the high-voltage blade electrode (2-3) and the grounding blade electrode (2-2).

6. The self-generating heat ozone-degrading plasma generating technology process as claimed in claim 1, wherein the self-generating heat ozone-degrading plasma generating device is characterized in that: the device comprises a dragon roll type structure (3), wherein the dragon roll type structure (3) comprises a heat insulation cover (3-1), an air dispersing cover (3-2), a spiral heat conducting fin (3-3), a heat conducting wall (3-4), a spiral air inlet (3-5), a high-voltage lead inlet (3-6), a main air inlet (3-7), an insulating base plate (3-8), a ventilation chuck (3-9), a grounding spiral electrode (3-10) and a high-voltage electrode (3-11); the outer side of the heat conducting wall (3-4) is sleeved with a spiral heat conducting fin (3-3); the upper end of the heat conducting wall (3-4) is provided with a ventilating chuck (3-9), and the lower end is provided with an insulating chassis (3-8); the air dispersing cover (3-2) is fixed at the top of the ventilating chuck (3-9), and the heat insulation cover (3-1) is sleeved outside the spiral heat conducting sheet (3-3); the outer side wall of the ventilation chuck (3-9) is provided with a spiral air inlet (3-5), and the bottom of the insulation chassis (3-8) is provided with a plurality of main air inlets (3-7) and high-voltage lead inlets (3-6); the heat conducting wall (3-4) is internally provided with a grounding spiral electrode (3-10), the bottom of the grounding spiral electrode (3-10) is connected with a high-voltage electrode (3-11), and the high-voltage electrode (3-11) is connected with the high-voltage lead inlet (3-6).

7. The self-generating heat ozone-degrading plasma generating apparatus according to claim 6, wherein: the ventilation chuck (3-9) is reversely buckled on the insulation base plate (3-8), and the ventilation chuck (3-9) enables a gap of 1-3 mm to be reserved between the high-voltage electrode (3-11) and the end part of the grounding spiral electrode (3-10).