Thermal plasma generator capable of improving product concentration

Abstract

The utility model belongs to the technical field of plasma generators, and particularly relates to a thermal plasma generator capable of improving product concentration, which comprises a rotational flow section, a shunting section, an ionization section and a diversion section which are connected in sequence, the cyclone section is provided with a gas inlet joint and a low-temperature gas outlet joint, the low-temperature gas outlet joint is connected with the flow guide section, high-temperature gas is ionized in the ionization section, the ionized gas enters the flow guide section from the ionization section, and the flow guide section is provided with a plasma outlet. Gas rotates when entering the rotational flow section and is separated into high-temperature gas and low-temperature gas, the high-temperature gas enters the ionization section to participate in high-voltage discharge of the gas, sufficient ionization can be carried out, the ionization efficiency is improved, the low-temperature gas enters the flow guide section and is mixed with the ionized gas at the plasma outlet, and the high-temperature gas and the low-temperature gas are separated into high-temperature gas and low-temperature gas. And the product concentration is effectively improved through rapid cooling.

Description

Technical Field

[0001] The utility model relates to a thermal plasma generator capable of increasing the concentration of products, belonging to the technical field of plasma generators. Background Art

[0002] In 1998, the Nobel Prize in Physiology or Medicine was awarded to three scholars, Robert Furchgott, Louis Ignarro, and Ferid Murad, in recognition of their contributions to the discovery of the mechanism by which nitric oxide (NO) promotes cardiovascular dilation. On this basis, numerous studies have shown that nitric oxide, as a signaling molecule, plays an important role in vasodilation, nerve conduction, immunity, etc., and is highly correlated with various diseases such as inflammation, heart disease, neurodegenerative diseases, metabolic diseases, etc.

[0003] There are already plasma products applied in the medical field. For example, in a plasma generator, gas is ionized through ionization in the plasma generator to generate plasma, and then the released plasma is applied to the medical field. However, the plasma concentration released by the existing plasma generators is relatively low. It has been found in applications that the level of plasma concentration affects the treatment effect. Therefore, how to further increase the plasma concentration at the outlet of the plasma generator is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Utility Model

[0004] In view of the above technical problems of the prior art, the utility model provides a thermal plasma generator capable of increasing the concentration of products, which separates gas into high-temperature gas and low-temperature gas by rotation. The high-temperature gas participates in the high-voltage discharge of the gas and can be fully ionized to improve the ionization efficiency. The low-temperature gas is fully mixed with the ionized gas at the plasma outlet, and the rapid cooling can increase the concentration of products, especially the concentration of NO.

[0005] The technical solution for the utility model to solve the above technical problems is as follows:

[0006] A thermal plasma generator capable of increasing the concentration of products includes a swirl section, a flow splitting section, an ionization section, and a diversion section connected in sequence; the swirl section is provided with an air inlet joint and a low-temperature gas outlet joint, the low-temperature gas outlet joint is connected to the diversion section, compressed gas enters the swirl section through the air inlet joint and rotates in the swirl section, the low-temperature gas generated by the swirl section is output from the low-temperature gas outlet joint and enters the diversion section, the high-temperature gas generated by the swirl section enters the flow splitting section, the flow splitting section adjusts the gas flow rate of the high-temperature gas entering the ionization section, the high-temperature gas is ionized in the ionization section, and the ionized gas enters the diversion section from the ionization section, and the diversion section is provided with a plasma outlet.

[0007] The beneficial effects of the present utility model are as follows: When the gas enters the swirl section, it generates rotation, thereby separating into high-temperature gas and low-temperature gas. The high-temperature gas passes through the flow regulation of the flow splitting section to adjust the size of the air flow, and then the high-temperature gas enters the ionization section to participate in the high-voltage discharge of the gas, which can be fully ionized to improve the ionization efficiency. The low-temperature gas enters the diversion section and is fully mixed with the ionized gas at the plasma outlet, and the product concentration can be effectively increased through rapid cooling.

[0008] On the basis of the above technical solutions, the present utility model can also be improved as follows:

[0009] Further, the swirl section includes a swirl inner cylinder and a swirl outer cylinder. The swirl outer cylinder is sleeved outside the swirl inner cylinder. A first gas ring cavity is provided between the swirl outer cylinder and the swirl inner cylinder. The swirl inner cylinder is a straight cylinder, and the low-temperature gas outlet joint is provided at the end of the swirl inner cylinder.

[0010] The beneficial effect of adopting the above further technical solution is that by forming a first gas ring cavity between the swirl outer cylinder and the swirl inner cylinder, after the gas fills the first gas ring cavity, it enters the swirl inner cylinder, making the air intake of the swirl inner cylinder more uniform.

[0011] Further, the swirl outer cylinder is provided with a first air inlet hole, the air inlet joint is provided on the first air inlet hole, the side wall of the swirl inner cylinder is provided with a plurality of second air inlet holes along the circumferential direction, the first air inlet hole and the second air inlet hole are arranged staggeredly, the second air inlet hole is an inclined hole, and the inclination angles of the plurality of second air inlet holes are the same.

[0012] The beneficial effect of adopting the above further technical solution is that the first air inlet hole and the second air inlet hole are arranged staggeredly, avoiding the gas directly entering the swirl inner cylinder from the first air inlet hole, but first filling the first gas ring cavity and then evenly entering the swirl inner cylinder, so that the rotation state of the gas after entering the swirl inner cylinder is more stable; the second air inlet hole is an inclined hole, which is more conducive to forming a rotation state when the gas enters the swirl inner cylinder.

[0013] Further, the flow splitting section includes a flow splitting inner cylinder and a flow splitting outer cylinder. The end of the flow splitting inner cylinder is communicated with the swirl inner cylinder through a diversion pipe. The flow splitting outer cylinder is sleeved outside the flow splitting inner cylinder. A second gas ring cavity is provided between the flow splitting inner cylinder and the flow splitting outer cylinder.

[0014] The beneficial effect of adopting the above further technical solution is that the high-temperature gas flows from the swirl inner cylinder into the flow splitting inner cylinder through the diversion pipe, and after being split by the flow splitting inner cylinder, it then enters the second gas ring cavity.

[0015] Further, a frustum-shaped flow divider is provided at one end of the flow dividing inner cylinder close to the guide pipe. A gap is left between the frustum-shaped flow divider and the guide pipe. A plurality of flow dividing holes are provided between the frustum-shaped flow divider and the inner wall of the flow dividing inner cylinder. The flow dividing holes communicate with the second gas ring cavity, and the flow dividing holes are long holes.

[0016] The beneficial effects of adopting the above further technical solution are as follows: The high-temperature gas entering the flow dividing inner cylinder from the guide pipe is divided by the frustum-shaped flow divider, and by adjusting the gap between the frustum-shaped flow divider and the guide pipe, the size of the air flow entering the second gas ring cavity can be adjusted. The high-temperature gas after being divided enters the second gas ring cavity through the flow dividing holes. The flow dividing holes are long holes to ensure the smooth flow of the air flow.

[0017] Further, the ionization section includes a cathode outer cylinder, a cathode, an insulating inner sleeve, an insulating outer sleeve, and an anode air ring. One end of the cathode outer cylinder is installed inside the end of the flow dividing inner cylinder. The cathode is arranged at the other end of the cathode outer cylinder through the insulating inner sleeve. The anode air ring is installed at the end of the cathode outer cylinder. One end of the insulating outer sleeve is installed on the flow dividing outer cylinder, and the other end of the insulating outer sleeve is connected to the anode air ring. A third gas ring cavity is provided between the insulating outer sleeve and the anode air ring. The third gas ring cavity communicates with the second gas ring cavity. A plurality of third air inlet holes are provided along the circumference of the anode air ring. The third air inlet holes are inclined holes, and the inclination angles of the plurality of third air inlet holes are the same.

[0018] The beneficial effects of adopting the above further technical solution are as follows: The third air inlet holes are inclined holes, so that the gas entering the ionization area of the anode air ring from the third gas ring cavity is in a rotating state, making the arc stable.

[0019] Further, the head of the cathode is arranged inside the anode air ring. The head of the cathode is bullet-shaped. The cathode is connected to a high-voltage wire, and the anode air ring is connected to a low-voltage wire.

[0020] The beneficial effects of adopting the above further technical solution are as follows: The head of the cathode is set to be bullet-shaped, which can make the gas flow smooth, reduce the air flow resistance of the gas, and at the same time reduce the eddy current formed by the air flow, making the arc more stable.

[0021] Further, the guiding section includes a guiding inner cylinder and a nozzle outer sleeve. The guiding inner cylinder is installed on the insulating outer sleeve. The nozzle outer sleeve is installed outside the guiding inner cylinder. A fourth gas ring cavity is provided between the nozzle outer sleeve and the guiding inner cylinder. A low-temperature gas inlet joint is provided on the nozzle outer sleeve. The low-temperature gas inlet joint is connected to the low-temperature gas outlet joint through a low-temperature pipe. A plurality of fourth air inlet holes are provided along the circumference of the guiding inner cylinder. The fourth air inlet holes are inclined holes, and the inclination angles of the plurality of fourth air inlet holes are the same. A plasma outlet is provided on the nozzle outer sleeve.

[0022] The beneficial effects of adopting the above further technical solution are as follows: The low-temperature gas flows out from the low-temperature gas outlet joint of the swirl inner cylinder, enters the fourth gas ring cavity through the low-temperature pipe and the low-temperature gas inlet joint, and then enters the diversion inner cylinder through the fourth inlet hole. Since the fourth inlet hole is an inclined hole, the low-temperature gas enters the inside of the diversion inner cylinder in a rotating state, quickly mixes with the gas that has undergone high-voltage ionization, and reduces the gas temperature. The rapid cooling can increase the concentration of the ionization products.

[0023] Further, one end of the diversion inner cylinder facing the plasma outlet is conical.

[0024] The beneficial effects of adopting the above further technical solution are as follows: It is convenient for the flow of gas.

[0025] Further, the inner hole diameter of the low-temperature gas outlet joint is less than 1 / 2 of the inner diameter of the swirl inner cylinder, and the plane diameter of the end of the frustum-shaped shunt member is equal to the inner diameter of the low-temperature gas outlet joint.

[0026] The beneficial effects of adopting the above further technical solution are as follows: The inner hole diameter of the low-temperature gas outlet joint is less than 1 / 2 of the inner diameter of the swirl inner cylinder, ensuring that the gas discharged from the low-temperature gas outlet joint is the low-temperature gas at the center of the swirl inner cylinder. The plane at the end of the frustum-shaped shunt member rebounds the low-temperature gas at the center of the swirl, preventing the low-temperature gas from entering the third ring cavity along the diversion conical surface of the frustum-shaped shunt member together with the high-temperature gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a cross-sectional view of the present utility model;

[0028] Figure 2 is a three-dimensional structural schematic diagram of the present utility model, wherein the low-temperature pipe is omitted;

[0029] Figure 3 is a front view of the present utility model, wherein the low-temperature pipe is omitted;

[0030] Figure 4 is Figure 3 the B-B cross-sectional view of;

[0031] Figure 5 is Figure 3 the C-C cross-sectional view of;

[0032] Figure 6 is Figure 3 the D-D cross-sectional view of;

[0033] Figure 7 is Figure 3 the E-E cross-sectional view of;

[0034] Figure 8This is the rear view of the present utility model, in which the low-temperature pipe is omitted;

[0035] Figure 9 It is a schematic three-dimensional structure diagram of the shunt inner cylinder;

[0036] Figure 10 It is a side view of the shunt inner cylinder;

[0037] Figure 11 It is a schematic three-dimensional structure diagram of the diversion inner cylinder;

[0038] Figure 12 It is a side view of the diversion inner cylinder.

[0039] The reference numerals are recorded as follows: 1, swirl inner cylinder; 2, swirl outer cylinder; 3, air inlet joint; 4, diversion pipe; 5, low-temperature gas outlet joint; 6, low-temperature pipe; 7, shunt inner cylinder; 8, shunt outer cylinder; 9, cathode outer cylinder; 10, cathode; 11, insulating inner sleeve; 12, anode air ring; 13, insulating outer sleeve; 14, diversion inner cylinder; 15, nozzle outer sleeve; 16, high-voltage wire; 17, low-voltage wire; 18, low-temperature gas inlet joint; 19, setscrew; 20, plasma outlet; 21, first gas ring cavity; 22, second gas ring cavity; 23, third gas ring cavity; 24, fourth gas ring cavity; 25, flange step; 26, second air inlet hole; 27, third air inlet hole; 28, fourth air inlet hole; 29, frustum-shaped shunt member; 30, shunt hole. Detailed implementation manners

[0040] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0041] See Figure 1-12 , a thermal plasma generator capable of increasing the product concentration, comprising a swirl section, a shunt section, an ionization section and a diversion section. The swirl section is connected to the shunt section, the shunt section is connected to the ionization section, and the ionization section is connected to the diversion section; the swirl section is provided with an air inlet joint 3 and a low-temperature gas outlet joint 5, and the low-temperature gas outlet joint 5 is connected to the diversion section. Compressed gas enters the swirl section through the air inlet joint 3 and rotates in the swirl section. In the embodiment of the present utility model, the compressed gas refers to compressed air. The low-temperature gas generated by the swirl section is output from the low-temperature gas outlet joint 5 and enters the diversion section. The high-temperature gas generated by the swirl section enters the shunt section. The shunt section adjusts the air flow rate of the high-temperature gas entering the ionization section. The high-temperature gas is ionized in the ionization section, and the ionized gas enters the diversion section from the ionization section. The diversion section is provided with a plasma outlet 20.

[0042] The cyclone section includes a cyclone inner cylinder 1 and a cyclone outer cylinder 2. The cyclone outer cylinder 2 is sleeved outside the cyclone inner cylinder 1. A first gas annular cavity 21 is provided between the cyclone outer cylinder 2 and the cyclone inner cylinder 1. The cyclone inner cylinder 1 is a straight cylinder. One end of the cyclone outer cylinder 2 is connected to the cyclone inner cylinder 1. Specifically, a flange step 25 is provided on the outer side of the cyclone inner cylinder 1, and a mounting step is provided at the end of the cyclone outer cylinder 2. The inner edge of the mounting step of the cyclone outer cylinder 2 is clamped on the flange step 25. The other end of the cyclone outer cylinder 2 is connected to the shunt section. Specifically, the other end of the cyclone outer cylinder 2 is connected to the shunt section through a diversion pipe 4. The connection manner between the diversion pipe 4 and the cyclone outer cylinder 2 is not limited. In the embodiment of the present invention, the cyclone outer cylinder 2 is threadedly connected to the diversion pipe 4, and the diversion pipe 4 is in contact connection with the end of the cyclone inner cylinder 1. Clamping steps are respectively provided at the ends of the diversion pipe 4 in contact with the cyclone inner cylinder 1, so that the cyclone inner cylinder 1, the cyclone outer cylinder 2 and the diversion pipe 4 are tightly connected to form the first gas annular cavity 21. In order to make the flow of the high-temperature air generated by the cyclone smooth, the diversion pipe 4 is a straight cylinder, and the inner diameter of the inner wall of the cyclone inner cylinder 1 is the same as the inner diameter of the inner wall of the diversion pipe 4. In this way, the high-temperature air formed by the cyclone will rotate and adhere to the inner wall of the cyclone inner cylinder 1 and the inner wall of the diversion pipe 4, and a low-temperature air flow will be formed in the central channel. The low-temperature gas outlet joint 5 is provided at the end of the cyclone inner cylinder 1 far from the shunt section.

[0043] A first air inlet hole is provided on the cyclone outer cylinder 2, and the air inlet joint 3 is provided on the first air inlet hole. A plurality of second air inlet holes 26 are provided on the side wall of the cyclone inner cylinder 1 along the circumferential direction. The first air inlet hole and the second air inlet holes 26 are arranged staggeredly. Specifically, the first air inlet hole is provided at one end of the first gas annular cavity 21 close to the shunt section, and the second air inlet holes 26 are provided at the first gas annular cavity 21 close to the low-temperature gas outlet joint 5, so as to prevent the gas from directly entering the cyclone inner cylinder 1 from the first air inlet hole after entering, but first filling the first gas annular cavity 21 and then evenly entering the cyclone inner cylinder 1, so as to make the rotation state of the gas more stable after entering the cyclone inner cylinder 1. The second air inlet holes 26 are inclined holes, and the inclination angles of the plurality of second air inlet holes 26 are the same, which is more beneficial to forming a rotation state when the gas enters the cyclone inner cylinder 1.

[0044] The shunt section includes a shunt inner cylinder 7 and a shunt outer cylinder 8. The end of the shunt inner cylinder 7 is communicated with the cyclone inner cylinder 1 through a diversion pipe 4. The shunt outer cylinder 8 is sleeved outside the shunt inner cylinder 7. A second gas annular cavity 22 is provided between the shunt inner cylinder 7 and the shunt outer cylinder 8.

[0045] A frustum-shaped flow divider 29 is provided at one end of the flow dividing inner cylinder 7 close to the guide pipe 4. A gap is left between the frustum-shaped flow divider 29 and the guide pipe 4. A frustum-shaped flow divider 29 is designed at the central part of the flow dividing inner cylinder 7. The connection between the flow dividing inner cylinder 7 and the guide pipe 4 is fixed by a setscrew 19, so that the installation of the flow dividing inner cylinder 7 on the guide pipe 4 can be adjusted back and forth. This will cause the size of the gap formed between the frustum-shaped flow divider 29 of the flow dividing inner cylinder 7 and the guide pipe 4 to change, and thus the size of the air flow entering the interior of the flow dividing inner cylinder 7 from the guide pipe 4 can be changed. As Figure 5 shown, a plurality of flow dividing holes 30 are provided between the frustum-shaped flow divider 29 and the inner wall of the flow dividing inner cylinder 7. The flow dividing holes 30 communicate with the second gas annular cavity 22. The flow dividing holes 30 are long holes to ensure the passage of air flow. After adjusting the air flow size, the flow dividing inner cylinder 7 is fixed by the setscrew 19.

[0046] The ionization section includes a cathode outer cylinder 9, a cathode 10, an insulating inner sleeve 11, an insulating outer sleeve 13 and an anode air ring 12. One end of the cathode outer cylinder 9 is installed inside the end of the flow dividing inner cylinder 7. The cathode 10 is arranged at the other end of the cathode outer cylinder 9 through the insulating inner sleeve 11. The anode air ring 12 is installed at the end of the cathode outer cylinder 9. One end of the insulating outer sleeve 13 is installed on the flow dividing outer cylinder 8, and the other end of the insulating outer sleeve 13 is connected to the outer end of the anode air ring 12. A third gas annular cavity 23 is provided between the insulating outer sleeve 13 and the anode air ring 12. The third gas annular cavity 23 communicates with the second gas annular cavity 22. High-temperature air enters the third gas annular cavity 23 from the second gas annular cavity 22. A plurality of third air inlet holes 27 are provided on the anode air ring 12 along the circumferential direction. The third air inlet holes 27 are inclined holes, and the inclination angles of the plurality of third air inlet holes 27 are the same, so that when the gas enters the discharge area inside the anode air ring 12 from the third air inlet holes 27, it presents a rotating state to make the arc stable. Both the cathode outer cylinder 9 and the insulating inner sleeve 11 are insulating materials, which can be high-temperature-resistant insulating materials such as ceramics or fiberglass.

[0047] The head of the cathode 10 is arranged inside the anode air ring 12. The head of the cathode 10 is bullet-shaped. The tail of the cathode 10 is connected to the high-voltage wire 16, and the anode air ring 12 is connected to the low-voltage wire 17 and connected to an external power supply. Through holes for the high-voltage wire 16 and the low-voltage wire 17 to pass through are provided on the flow dividing outer cylinder 8 and sealed with sealant. Through holes for the high-voltage wire 16 to pass through are provided on both the cathode outer cylinder 9 and the flow dividing inner cylinder 7. The low-voltage wire 17 passes through the through hole on the flow dividing outer cylinder 8 to connect the anode air ring 12, and the high-voltage wire 16 passes through the through holes on the flow dividing outer cylinder 8, the flow dividing inner cylinder 7 and the cathode outer cylinder 9 in sequence to connect the cathode 10.

[0048] The diversion section includes a diversion inner cylinder 14 and a nozzle outer sleeve 15. The diversion inner cylinder 14 is installed on the insulating outer sleeve 13. The nozzle outer sleeve 15 is installed outside the diversion inner cylinder 14. A fourth gas ring cavity 24 is provided between the nozzle outer sleeve 15 and the diversion inner cylinder 14. A low-temperature gas inlet joint 18 is provided on the nozzle outer sleeve 15. The low-temperature gas inlet joint 18 is connected to the low-temperature gas outlet joint 5 through a low-temperature pipe 6. A plurality of fourth intake holes 28 are provided on the diversion inner cylinder 14 along the circumferential direction. The fourth intake holes 28 are inclined holes, and the inclination angles of the plurality of fourth intake holes 28 are the same. A plasma outlet 20 is provided on the nozzle outer sleeve 15.

[0049] One end of the diversion inner cylinder 14 facing the plasma outlet 20 is conical.

[0050] The inner hole diameter of the low-temperature gas outlet joint 5 is less than 1 / 2 of the inner diameter of the swirl inner cylinder 1. The plane diameter of the end of the frustum-shaped flow dividing member 29 is equal to the inner diameter of the low-temperature gas outlet joint 5.

[0051] The working process of the thermal plasma generator of the present invention that can improve the product concentration is as follows:

[0052] 1. Compressed gas enters the first gas ring cavity 21 between the swirl outer cylinder 2 and the swirl inner cylinder 1 from the intake joint 3 and the first intake hole, and then evenly enters the swirl inner cylinder 1 from the second intake hole 26 and generates rotation. The air rotation generates separation. The central channel is low-temperature gas, which can reach minus 20 °C, and the high-temperature gas close to the inner wall of the swirl inner cylinder 1 can reach 100 °C;

[0053] 2. The high-temperature gas enters the diversion pipe 4 from the swirl inner cylinder 1, and then enters the diversion inner cylinder 7 through the gap formed by the conical surface of the frustum-shaped flow dividing member 29 of the diversion inner cylinder 7 and the diversion pipe 4, and then enters the second gas ring cavity 22 from the diversion hole 30. After the low-temperature gas in the central channel encounters the flat end face of the frustum-shaped flow dividing member 29, the flat end face will rebound the air flow and discharge it from the low-temperature gas outlet joint 5 at the end of the swirl inner cylinder 1;

[0054] 3. The high-temperature gas entering the second gas ring cavity 22 enters the ionization region of the anode air ring 12 through the third gas ring cavity 23 and the third intake hole 27, and the high-temperature air is ionized. The ionized gas enters the diversion inner cylinder 14 from the anode air ring 12;

[0055] 4. The low-temperature gas discharged from the low-temperature gas outlet joint 5 enters the fourth gas ring cavity 24 through the low-temperature pipe 6 and the low-temperature gas inlet joint 18, and enters the diversion inner cylinder 14 from the fourth gas ring cavity 24 through the fourth intake hole 28 and mixes with the ionized gas;

[0056] V. The low-temperature gas enters the flow guide inner cylinder 14 and presents a rotating state, quickly mixes with the ionized gas, and reduces the gas temperature. The rapid cooling can increase the concentration of the ionization product NO, and the plasma is ejected from the plasma outlet 20.

[0057] In the swirl section of the present utility model, the incoming compressed air is rotated, thereby being separated into central low-temperature air and outer high-temperature air. The temperature of the high-temperature air can reach 100 °C, and the temperature of the low-temperature air can be as low as -20 °C. The high-temperature air enters the discharge area between the cathode 10 and the anode. Since the high-temperature air enters, the discharge efficiency can be improved, the air ionization is more sufficient, and ionic substances are formed in this area. The low-temperature air is discharged from the swirl section and enters the flow guide inner cylinder 14, mixes with the ionized gas, and rapidly cools down, which can increase the concentration of the product NO.

[0058] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A thermal plasma generator capable of increasing product concentration, characterized in that: The invention comprises a swirl section, a shunt section, an ionization section and a guide section which are connected in sequence; the swirl section is provided with an air inlet joint (3) and a low-temperature gas outlet joint (5); the low-temperature gas outlet joint (5) is connected to the guide section; compressed gas enters the swirl section through the air inlet joint (3) and rotates in the swirl section; low-temperature gas generated by the swirl section is output from the low-temperature gas outlet joint (5) and enters the guide section; high-temperature gas generated by the swirl section enters the shunt section; the shunt section adjusts the airflow size of the high-temperature gas entering the ionization section; the high-temperature gas is ionized in the ionization section; the ionized gas enters the guide section from the ionization section; the guide section is provided with a plasma outlet (20).

2. The thermal plasma generator capable of increasing product concentration according to claim 1, characterized in that: The swirl section comprises a swirl inner cylinder (1) and a swirl outer cylinder (2), wherein the swirl outer cylinder (2) is sleeved on the outer side of the swirl inner cylinder (1), a first gas annular cavity (21) is provided between the swirl outer cylinder (2) and the swirl inner cylinder (1), the swirl inner cylinder (1) is a straight cylinder, and the low-temperature gas outlet joint (5) is provided at the end of the swirl inner cylinder (1).

3. The thermal plasma generator capable of increasing product concentration according to claim 2, characterized in that: The cyclone outer cylinder (2) is provided with a first air inlet hole, the air inlet joint (3) is provided on the first air inlet hole, and a plurality of second air inlet holes (26) are provided on the side wall of the cyclone inner cylinder (1) along the circumferential direction, the first air inlet hole and the second air inlet hole (26) are staggered, the second air inlet hole (26) is an inclined hole, and the inclination angles of the plurality of second air inlet holes (26) are the same.

4. The thermal plasma generator capable of increasing product concentration according to claim 2, characterized in that: The flow splitting section comprises a flow splitting inner cylinder (7) and a flow splitting outer cylinder (8); the end of the flow splitting inner cylinder (7) is connected to the cyclone inner cylinder (1) via a flow guide tube (4); the flow splitting outer cylinder (8) is sleeved on the outside of the flow splitting inner cylinder (7); and a second gas annular cavity (22) is provided between the flow splitting inner cylinder (7) and the flow splitting outer cylinder (8).

5. The thermal plasma generator capable of increasing product concentration according to claim 4, characterized in that: A frustum-shaped flow divider (29) is provided at one end of the flow divider inner cylinder (7) close to the flow guide tube (4), a gap is left between the frustum-shaped flow divider (29) and the flow guide tube (4), a plurality of flow divider holes (30) are provided between the frustum-shaped flow divider (29) and the inner wall of the flow divider inner cylinder (7), the flow divider holes (30) are connected to the second gas annular cavity (22), and the flow divider holes (30) are long holes.

6. The thermal plasma generator capable of increasing product concentration according to claim 4 or 5, characterized in that: The ionization section comprises a cathode outer cylinder (9), a cathode (10), an insulating inner sleeve (11), an insulating outer sleeve (13) and an anode air ring (12); one end of the cathode outer cylinder (9) is mounted on the inner side of the end of the shunt inner cylinder (7); the cathode (10) is arranged at the other end of the cathode outer cylinder (9) through the insulating inner sleeve (11); the anode air ring (12) is mounted at the end of the cathode outer cylinder (9); one end of the insulating outer sleeve (13) is mounted on the shunt outer cylinder (8); the other end of the insulating outer sleeve (13) is connected to the anode air ring (12); a third gas ring cavity (23) is arranged between the insulating outer sleeve (13) and the anode air ring (12); the third gas ring cavity (23) is connected to the second gas ring cavity (22); a plurality of third air inlet holes (27) are arranged on the anode air ring (12) along the circumferential direction; the third air inlet holes (27) are inclined holes; and the inclination angles of the plurality of third air inlet holes (27) are the same.

7. The thermal plasma generator capable of increasing product concentration according to claim 6, characterized in that: The head of the cathode (10) is arranged in the anode air ring (12), and the head of the cathode (10) is in the shape of a bullet. The cathode (10) is connected to a high-voltage line (16), and the anode air ring (12) is connected to a low-voltage line (17).

8. The thermal plasma generator capable of increasing product concentration according to claim 6, characterized in that: The guide section comprises a guide inner cylinder (14) and a nozzle outer sleeve (15); the guide inner cylinder (14) is mounted on the insulating outer sleeve (13); the nozzle outer sleeve (15) is mounted on the outside of the guide inner cylinder (14); a fourth gas annular cavity (24) is provided between the nozzle outer sleeve (15) and the guide inner cylinder (14); a low-temperature gas inlet joint (18) is provided on the nozzle outer sleeve (15); the low-temperature gas inlet joint (18) is connected to the low-temperature gas outlet joint (5) via a low-temperature pipe (6); a plurality of fourth gas inlet holes (28) are provided on the guide inner cylinder (14) along the circumferential direction; the fourth gas inlet holes (28) are inclined holes; the inclination angles of the plurality of fourth gas inlet holes (28) are the same; and a plasma outlet (20) is provided on the nozzle outer sleeve (15).

9. The thermal plasma generator capable of increasing product concentration according to claim 8, characterized in that: One end of the flow guiding inner cylinder (14) facing the plasma outlet (20) is tapered.

10. The thermal plasma generator capable of increasing product concentration according to claim 5, characterized in that: The inner hole diameter of the low-temperature gas outlet joint (5) is less than 1 / 2 of the inner diameter of the cyclone inner cylinder (1), and the plane diameter of the end of the frustum-shaped flow divider (29) is equal to the inner diameter of the low-temperature gas outlet joint (5).

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