Reactor and activated water preparation device

Abstract

The application provides a reactor, which comprises a containing part with an opening, a first electrode arranged in the containing part, and a gas flow channel formed by the first electrode and the containing part, wherein the containing part is arranged in a water solution to be treated, and a sealing element is arranged at the opening of the containing part to improve the air tightness between the containing part and the first electrode. The application also provides an activated water preparation device. The reactor and the activated water preparation device provided by the application improve the air tightness between the first electrode and the containing part by arranging a sealing element on the containing part, improve the transmission efficiency of active particles by arranging an arc hole on the side wall of the containing part, and effectively improve the discharge treatment efficiency by segmentally coating the first electrode with a medium layer to make the discharge process generate a glow arc mixed mode.

Description

Technical Field

[0001] This invention belongs to the technical field of reactors and activated water preparation devices, and particularly relates to a reactor and activated water preparation device. Background Technology

[0002] With the development of plasma technology, people have gradually realized that substances generated by discharge in gas have bactericidal effects. Furthermore, treating plasma under atmospheric pressure can produce activated water with a low pH and high redox potential. Plasma-activated water generates a large number of active particles in the gas-liquid phase, such as H+, O3, -OH, NO-, and NO-2. These particles undergo chemical reactions in water to produce substances such as peroxynitrite, hydrogen peroxide, nitric acid, and nitrite. These substances have anti-cancer and bactericidal biomedical effects. Plasma-activated water is widely used in cleaning, sterilization, wastewater treatment, and fruit and vegetable preservation.

[0003] The application of plasma-activated water technology is currently limited by the harsh environment generated by its discharge process, such as strong electric field, high corrosion, and high ozone. Moreover, discharge in high humidity environment is prone to creepage, resulting in low discharge efficiency and great safety risks. Existing technologies also have problems such as poor airtightness of reactors, complex assembly processes, and easy creepage during operation.

[0004] Therefore, there is an urgent need to design a reactor and activated water preparation device to solve the problems of poor reactor airtightness, complex assembly process, and easy electric shock during operation in the existing technology. Summary of the Invention

[0005] The main objective of this invention is to provide a reactor and an activated water preparation device to solve the technical problems of poor reactor airtightness, complex assembly process, and easy electric creep during operation.

[0006] To achieve the above objectives, the specific technical solutions for the reactor and activated water preparation apparatus of the present invention are as follows:

[0007] The present invention provides a reactor comprising a container with an opening, a first electrode disposed within the container, the first electrode and the container forming a gas flow channel, the container being placed in an aqueous solution to be treated, and a sealing element provided at the opening of the container to improve the airtightness between the container and the first electrode.

[0008] As a preferred embodiment of the present invention, the receiving portion includes a tubular structure with an opening, and the first electrode is a columnar structure. The first electrode extends through the sealing member into the receiving portion so that the sealing member and the receiving portion are snapped together and fixed.

[0009] As a preferred embodiment of the present invention, the seal and / or the receiving part is made of glass material.

[0010] As a preferred embodiment of the present invention, the sealing element includes a connecting surface, and the inner wall of the opening of the receiving portion is provided with a third contact surface. The connecting surface of the sealing element and the third contact surface are in contact with each other so that the sealing element and the receiving portion are sealed together.

[0011] In a preferred embodiment of the present invention, the third contact surface and / or connecting surface is configured as a rough glass surface, and the third contact surface and / or connecting surface is coated with a sodium hydroxide solution.

[0012] As a preferred embodiment of the present invention, the first electrode includes a first body and a second body, which are connected in sequence so that the second body is accommodated in the accommodating portion.

[0013] As a preferred embodiment of the present invention, the first body has a hollow structure and the second body has a solid structure.

[0014] As a preferred embodiment of the present invention, a plurality of through holes are provided on the outer wall of the first body so that the gas inside the first body can flow out through the through holes to the hollow area formed between the accommodating part and the second body.

[0015] As a preferred embodiment of the present invention, an air inlet pipe is connected to the side wall of the first body so that gas flows into the first body through the air inlet pipe and then flows out through the through hole.

[0016] As a preferred embodiment of the present invention, the sidewalls of the air intake pipe and the first body are provided with an angle, the angle ranging from 0° to 90°, so that the water droplets in the air intake pipe automatically flow back to the inner wall of the accommodating part.

[0017] As a preferred embodiment of the present invention, the outer wall of the second body is coated with a polytetrafluoroethylene coating.

[0018] As a preferred embodiment of the present invention, an arc hole is provided at the bottom of the first body, and the arc hole is positioned below the surface of the aqueous solution to be treated.

[0019] As a preferred embodiment of the present invention, the diameter of the arc hole ranges from 0.05mm to 0.5mm.

[0020] As a preferred embodiment of the present invention, the bottom of the accommodating part is provided with a plurality of first air vents.

[0021] The present invention also provides an activated water preparation apparatus, comprising the reactor as described above.

[0022] As a preferred embodiment of the present invention, the receiving part is provided with a first contact surface, the activated water preparation device includes a water tank, the water tank is provided with a cover, and the first contact surface is embedded into the inside of the cover so that the receiving part and the cover are fixedly connected.

[0023] The reactor and activated water preparation apparatus provided by this invention have the following advantages:

[0024] The reactor and activated water preparation apparatus provided by the present invention improve the airtightness of the first electrode and the container by setting a sealing element on the container, improve the transfer efficiency of active particles by setting an arc hole on the side wall of the container, and improve the discharge processing efficiency by segmenting the coating of the first electrode with a dielectric layer to generate a glow discharge arc mixed mode during the discharge process. Attached Figure Description

[0025] Figure 1 Schematic diagram of the overall structure of the activated water preparation device provided by the present invention Figure 1 ;

[0026] Figure 2 Schematic diagram of the overall structure of the activated water preparation device provided by the present invention Figure 2 ;

[0027] Figure 3 This is a cross-sectional view of the activated water preparation apparatus provided by the present invention;

[0028] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0029] Figure 5 This is a schematic diagram of the reactor structure provided by the present invention;

[0030] Figure 6 A top view of the reactor provided by the present invention;

[0031] Figure 7 for Figure 6 Cross-sectional view along the BB direction;

[0032] Figure 8 for Figure 7 A magnified view of part C in the middle;

[0033] Figure 9 for Figure 7 A magnified view of part D in the middle;

[0034] Figure 10 This is a schematic diagram of the overall structure of the second electrode provided by the present invention.

[0035] Explanation of markings in the diagram:

[0036] 1. Water tank; 11. First air outlet; 2. Cover; 21. Containing space; 3. Fixing frame; 4. Second electrode; 41. First air inlet; 42. Second air outlet; 5. Reactor; 51. Containing part; 511. First contact surface; 512. Arc hole; 513. First air outlet; 514. Second contact surface; 515. Third contact surface; 52. First electrode; 521. Air inlet pipe; 522. Connecting pipe; 523. First body; 5231. Second air outlet; 524. Second body; 53. Sealing element; 531. Connecting surface; 54. Medium layer; 6. Connecting plate; 7. Diverter plate; 71. Containing tank; 72. Second air inlet; 73. Third air inlet; 8. Aqueous solution to be treated. Detailed Implementation

[0037] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figure 1As shown, this invention provides an activated water preparation device, including a water tank 1, a reactor 5, and a second electrode 4. The water tank 1 contains an aqueous solution 8 to be treated. The reactor includes a first electrode 52 and a container 51. After the first electrode 52 and the second electrode 4 are energized, electrons travel from the first electrode 52 to the air, then to the container 51, then to the water, and finally to the second electrode 4, forming a closed loop. The device can only operate normally if there is air inside the container 51; therefore, after energizing, the water must be drained before operation. During the discharge process, the high voltage opens oxygen molecules, water molecules, nitrogen molecules, etc., in the air, forming a series of complex physicochemical reactions that ultimately generate plasma-active substances. Furthermore, the reactor 5 extends into the aqueous solution 8, and the second electrode 4 is placed below the surface of the aqueous solution 8. Gas is circulated between the reactor 5 and the second electrode 4 via a pump. The pump delivers the gas to the reactor 5, ionizing the gas to generate air plasma. The air plasma is transported to the aqueous solution 8, where ionization occurs at the gas-liquid interface.

[0041] Specifically, water tank 1 is used to hold the aqueous solution 8 to be treated. The shape and size of water tank 1 can be set according to actual needs, and water tank 1 can be made of insulating material. In a preferred embodiment of the present invention, water tank 1 can be made of plastic material. The aqueous solution 8 to be treated is specifically an aqueous solution, which dissolves to generate H+, NO2- and NO3- after air plasma enters the aqueous solution.

[0042] Furthermore, a second electrode 4 wrapped with an insulating medium can be installed at the bottom of the water tank 1. Specifically, the second electrode 4 refers to the ground electrode, and the reactor 5 can be a high-voltage electrode. During actual use, the products differ depending on the discharge mode. The arc mode mainly produces hydrogen peroxide active particles, the glow discharge mode mainly produces nitrate and nitrous acid, and the mixed mode can produce active particles such as hydrogen peroxide and nitrate and nitrous acid. The arc hole 512 provided by this invention aims to generate a glow discharge arc mixed mode, which can produce more mixed particles to improve sterilization efficiency.

[0043] Furthermore, since the inner wall of water tank 1 is made of insulating material, intermittent starlight will appear on the inner wall of water tank 1 during the discharge process. This is mainly because some water vapor or water is adsorbed onto the inner wall of water tank 1 under the action of bubbles. Because the inner wall of water tank 1 is made of insulating material, a potential difference is formed between the water film potential on the inner wall and the water potential in water tank 1. When a certain local potential is reached, starlight creepage will occur, resulting in some loss of injected energy and thus affecting the activation water treatment efficiency. Therefore, coating the inner wall of water tank 1 with a conductive coating to force the water film adsorbed on the inner wall of water tank 1 to form an equipotential state with the aqueous solution can effectively solve the inner wall creepage problem and thus improve the preparation efficiency.

[0044] Furthermore, such as Figure 2 and Figure 3As shown, the liquid level of the water to be treated in the water tank 1 is set at the middle position of the water tank 1. The middle part of the reactor 5 is placed below the water solution 8 to be treated. The second electrode 4 is placed below the reactor 5 and penetrates the lower middle part of the water tank 1. As a preferred embodiment, the second electrode 4 is a ground electrode. The reactor 5 includes a first electrode 52, which is a high-voltage electrode. The first electrode 52 and the second electrode 4 are energized and pressurized to ionize the air flowing between the first electrode 52 and the second electrode 4, generating plasma. The plasma mixes and reacts with the water solution 8 to be treated in the water tank 1 to generate substances such as peroxynitrite, hydrogen peroxide, nitric acid, and nitrite, which have anti-cancer and bactericidal functions, thus preparing plasma-activated water.

[0045] Furthermore, the gas between the first electrode 52 and the second electrode 4 can circulate back and forth through pipes inside and outside the water tank 1. When the air and the aqueous solution react fully, a high-temperature and high-humidity gas-liquid mixture is formed. This mixture circulates through the second electrode 4, which cools and dries the high-temperature and high-humidity gas-liquid mixture, forming a low-temperature and dry gas that flows into the first electrode 52 for circulation reaction, thereby effectively improving the sterilization efficiency of plasma-activated water.

[0046] like Figure 10 As shown, the second electrode 4 is placed in the aqueous solution 8 to be treated inside the water tank 1. In a preferred embodiment, the second electrode 4 is placed horizontally at the bottom of the water tank 1. Generally, the water tank 1 is a square box, and the second electrode 4 is placed near the bottom of the water tank 1, with both ends of the second electrode 4 penetrating the opposite side walls of the water tank 1. Of course, it can be understood that the second electrode 4 can also be placed at an angle at the bottom of the water tank 1. In addition to passing electricity, the main function of the second electrode 4 is to extend the gas flow path and to uniformly distribute the potential in the solution.

[0047] In a preferred embodiment, the second electrode 4 is arranged horizontally in a serpentine conduit. This extends the gas flow path and condenses, dries, and cools the incoming gas, ensuring that the gas passing through the second electrode 4 is dry and low-temperature. Of course, it is understood that the shape of the second electrode 4 can be a U-shaped conduit, an S-shaped conduit, or multiple conduits connected in bends, as long as it extends the flow path of the gas-liquid mixture.

[0048] Furthermore, coating the outer wall of the second electrode 4 with a polytetrafluoroethylene dielectric layer can prevent the high-voltage electrode from directly contacting the ground electrode, thus avoiding a short circuit, and can also reduce creepage at the connection between the electrode and the water tank 1. Of course, it is understood that the dielectric layer coating the outer wall of the second electrode 4 can also be other dielectric layers, as long as they are resistant to high temperature and high pressure. There are no specific limitations on the coated dielectric layer; other high-temperature and high-pressure resistant dielectric layers are also within the protection scope of this invention.

[0049] Furthermore, during the discharge process, the resistance of the aqueous solution 8 gradually decreases, but its resistance fluctuations are large and extremely uneven. Therefore, the potential uniformity in the solution can be improved under the action of the second electrode 4. On the other hand, since the discharge device needs to improve the plasma solubility through multiple gas circulations during operation, the excessive humidity of the gas during circulation leads to excessive water droplets in the glass tube of reactor 5, causing creepage or even sparking, which in turn results in low energy loss and low processing efficiency during the discharge process. The circulating gas flow path through the interior of the second electrode 4 can play a role in condensation and cooling, thus effectively reducing the humidity of the gas flowing out of the second electrode 4, thereby reducing the humidity of the gas inside the high-voltage electrode glass tube and improving the processing efficiency. In addition, coating the outer wall of the ground electrode with a polytetrafluoroethylene dielectric layer can prevent the high-voltage electrode from directly contacting the ground electrode, which could lead to a short circuit, and can also reduce creepage at the connection between the electrode and the water tank 1.

[0050] like Figure 1 and Figure 2 As shown, the gas circulation path is as follows: the gas flows from the first electrode 52 to the water tank 1, and then from the water tank 1 to the second electrode 4. The gas then flows back to the first electrode 52, and so on, forming a gas circuit.

[0051] Specifically, a first air outlet 11 is provided on the side wall of the water tank 1, and a first air inlet 41 is provided on the second electrode 4. The first air outlet 11 and the first air inlet 41 are connected by a pipeline. A second air outlet 42 is provided on the second electrode 4, and an air inlet pipe 521 is provided on the reactor 5. The second air outlet 42 is connected to the air inlet of the pump body, and the air inlet pipe 521 is connected to the air outlet of the pump body. The second electrode 4 includes at least two connected circuits, and the gas-liquid mixture is condensed and dried through at least two circuits to extend the flow path of the gas-liquid mixture within the second electrode 4.

[0052] In a preferred embodiment, the pump body can be specifically configured as a circulating pump, which is provided with an air inlet and an air outlet to allow the gas to circulate repeatedly between the first electrode 52, the water tank 1, the second electrode 4, and the circulating pump.

[0053] Furthermore, such as Figure 1 and Figure 2 As shown, a cover 2 is provided on the water tank 1, and a fixing frame 3 is provided on the cover 2. The reactor 5 is mounted on the fixing frame 3 so that the reactor 5 is partially contained in the aqueous solution 8 to be treated. There are multiple reactors 5, which are equally spaced on the fixing frame 3 and connected by a connecting plate 6. A receiving space 21 is formed between the reactor 5 and the cover 2, and the receiving space 21 is filled with a sealing and insulating material.

[0054] Furthermore, as a preferred embodiment, the sealing and insulating material is epoxy resin. Of course, it is understood that other sealing and insulating materials are also within the scope of the embodiments protected by this invention.

[0055] Furthermore, a flow divider plate 7 is provided on the fixed frame 3. A second air inlet 72 is provided on one side of the flow divider plate 7. The second air inlet 72 is connected to the air outlet of the pump body. Multiple third air inlets 73 are provided on the other side of the flow divider plate 7. The third air inlets 73 are connected to the air inlet pipe 521. The pump body delivers gas to multiple reactors 5 through the flow divider plate 7.

[0056] Specifically, such as Figure 2 As shown, a flow divider 7 is disposed on one side wall of the cover 2, and a receiving groove 71 is disposed in the middle of the flow divider 7. The receiving groove 71 mainly contains the gas output from the pump body. A second air inlet 72 is disposed on one side of the receiving groove 71, and the second air inlet 72 is connected to the pump body. There is one second air inlet 72. At least two third air inlets 73 are disposed on the other side of the receiving groove 71. Of course, it can be understood that the number of third air inlets 73 can be set to three or more. Each third air inlet 73 corresponds to a first air inlet 41 disposed on each reactor 5, so that the gas flowing in from the second air inlet 72 can flow into each first air inlet 41 through the flow divider of the receiving groove 71, thereby realizing the gas diversion.

[0057] like Figures 4 to 9 As shown, the reactor 5 includes a container 51 with an opening, a first electrode 52 is disposed in the container 51, and a gas flow channel is formed between the first electrode 52 and the container 51. The container 51 is placed in the aqueous solution 8 to be treated, and a sealing member 53 is provided at the opening of the container 51 to improve the airtightness between the container 51 and the first electrode 52.

[0058] Furthermore, the receiving portion 51 includes a tubular structure with an opening, and the first electrode 52 is a columnar structure. The first electrode 52 extends through the sealing member 53 into the receiving portion 51 so that the sealing member 53 and the receiving portion 51 are snapped together and fixed.

[0059] Of course, as a preferred embodiment, the seal 53 and the receiving part 51 can be made of glass material. The seal 53 or the receiving part 51 can be made of glass material or ceramic material respectively, as long as the insulation function can be achieved.

[0060] Furthermore, the sealing element 53 includes a connecting surface 531, and the inner wall of the opening of the receiving portion 51 is provided with a third contact surface 515. The connecting surface 531 and the third contact surface 515 of the sealing element 53 are in contact to seal the sealing element 53 and the receiving portion 51. The third contact surface 515 and / or the connecting surface 531 are set as rough glass surfaces, and the third contact surface 515 and / or the connecting surface 531 are coated with sodium hydroxide solution. In order to improve the airtightness between the first electrode 52 and the receiving portion 51, a frosted glass connection method is used for connection. The first electrode 52 and the sealing element 53 can be integrated by high-temperature processing before assembly, wherein the connecting surface 531 in the sealing element 53 is a rough surface. The upper conical surface of the receiving part 51 is made of frosted glass tube, with the second contact surface 514 and the third contact surface 515 being rough surfaces. During assembly, the connecting surface 531 and the third contact surface 515 mate, and sodium hydroxide solution is added to the connecting surface 531 and the third contact surface 515 to cause a chemical reaction and form a protective film, ensuring the airtightness of the connecting surface 531. The same method is used to connect the receiving part 51 to the cover 2 of the water tank 1. The first contact surface 511 is made of frosted glass, and this structure is embedded into the cover 2 of the water tank 1. During installation, it mainly relies on the first contact surface 511 and the second contact surface 514 in the glass tube to mate and react chemically under the action of sodium hydroxide solution to form a protective film, thereby achieving a sealing effect.

[0061] Furthermore, the first electrode 52 includes a first body 523 and a second body 524, which are connected sequentially so that the second body 524 is housed within the receiving portion 51. The first body 523 has a hollow structure, and the second body 524 has a solid structure. The material of the first electrode 52 needs to possess the characteristics of high temperature and high pressure resistance and corrosion resistance.

[0062] Furthermore, the outer wall of the first body 523 is provided with multiple through holes, so that the gas inside the first body 523 can flow out through the through holes to the hollow area formed between the accommodating part 51 and the second body 524. An air inlet pipe 521 is connected to the side wall of the first body 523, so that the gas flows into the first body 523 through the air inlet pipe 521 and then flows out through the through holes.

[0063] Furthermore, the sidewalls of the air inlet pipe 521 and the first body 523 are provided with an included angle, ranging from 0° to 90°, so that water droplets in the air inlet pipe 521 can automatically flow back to the inner wall of the receiving part 51. The purpose is to ensure that water droplets in the pipe automatically flow back to the inner wall of the glass tube during operation. Gas enters from the air inlet, passes through the air inlet pipe 521, passes through the hollow area at the upper end of the first electrode 52, and is evenly discharged from the through hole, so that the gas flow distribution on the inner wall of the glass tube is uniform. The electrode device requires high airtightness during the discharge process, and good sealing must be maintained between the assembled parts.

[0064] In a preferred embodiment, the outer wall of the second body 524 is coated with a dielectric layer 54, which is a polytetrafluoroethylene coating, in order to increase the generated arc voltage and stabilize the discharge.

[0065] Furthermore, an arc hole 512 is provided at the bottom of the first body 523, and the arc hole 512 is positioned below the surface of the aqueous solution 8 to be treated. Multiple first vent holes 513 are provided at the bottom of the receiving portion 51. In a preferred embodiment, the diameter of the arc hole 512 ranges from 0.05 mm to 0.5 mm. According to the theory of plasma-activated water, the concentration of active particles generated in the glow discharge arc mixing mode is higher, which is more conducive to improving the efficiency of activated water preparation; therefore, an arc hole 512 is added in the middle of the glass tube.

[0066] The principle of arc discharge is that a strong electric arc is generated when the local electric field strength of the high-voltage electrode is too high during the discharge process and a circuit is formed with the low potential. The purpose of the arc hole 512 in the middle of the glass tube is to artificially increase the circuit between the high-voltage electrode and the aqueous solution. That is, during the discharge process, the high-voltage electrode forms a path with the aqueous solution 8 to be treated through the arc hole 512. When a certain electric field strength is reached, a very obvious electric arc will be formed between the high-voltage electrode and the aqueous solution 8 to be treated, at which time a large number of hydrogen peroxide active particles will be generated. In addition to the electric arc generated around the central arc hole 512, other parts of the high-voltage electrode will generate a glow mode. Therefore, the concentration of active particles is relatively high in the mixed mode, thereby improving the treatment efficiency of activated water. Traditional discharge devices generally use aeration stones for aeration, but the installation of aeration stones and discharge devices is relatively complicated, and the two different materials have different expansion coefficients, which can lead to air and water leakage and creepage phenomena during operation. The embodiment provided by this invention integrates the aeration device and the glass tube into one unit, effectively reducing a series of problems generated during installation. At the same time, the feasibility of improving the gas-liquid mass transfer efficiency by aeration through the arc hole 512 is verified by experiments. Finally, the diameter of the micropores is selected as 0.1mm-1mm.

[0067] This invention proposes using a glass tube with an electric arc hole 512 for aeration, effectively simplifying installation and enabling a hybrid electric arc mode, significantly improving the efficiency of activated water preparation. The discharge electrode is designed using a segmented processing method, integrating the air inlet pipe 521 with the electrode, reducing processing difficulty while effectively improving system discharge stability. A frosted glass tube structure is used for sealing, ensuring airtightness during system operation, thereby effectively reducing energy loss and improving activated water treatment efficiency.

[0068] The reactor 5 provided by the present invention improves the airtightness of the first electrode 52 and the housing 51 by providing a sealing member 53 on the housing 51. Arc holes 512 are provided on the sidewall of the housing 51 to improve the transfer efficiency of active particles. The segmented coating of the first electrode 52 with a dielectric layer enables a glow discharge arc mixing mode during the discharge process, effectively improving the discharge processing efficiency.

[0069] The activated water preparation device provided by the present invention places the second electrode 4 horizontally at the bottom of the water tank 1, and coats the outer wall of the second electrode 4 with a polytetrafluoroethylene coating, which effectively solves the creepage phenomenon around the second electrode 4. At the same time, the inner wall of the second electrode 4 can cool the circulating gas, thereby reducing the water droplets on the inner wall of the first electrode 52 and improving the discharge efficiency.

[0070] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reactor, characterized in that, It includes a container with an opening, a first electrode is disposed inside the container, the first electrode and the container form a gas flow channel, the container is placed in an aqueous solution to be treated, and a sealing element is provided at the opening of the container to improve the airtightness between the container and the first electrode. The first electrode includes a first body and a second body, which are connected in sequence so that the second body is accommodated in the accommodating portion; The first body has a hollow structure, and the second body has a solid structure; The outer wall of the first body is provided with multiple through holes so that the gas inside the first body can flow out through the through holes to the hollow area formed between the accommodating part and the second body.

2. The reactor according to claim 1, characterized in that, The receiving portion includes a tubular structure with an opening, and the first electrode is a columnar structure. The first electrode extends through the seal and into the receiving portion so that the seal and the receiving portion are snapped together and fixed.

3. The reactor according to claim 1 or 2, characterized in that, The seals and / or housings are made of glass.

4. The reactor according to claim 1, characterized in that, The seal includes a connecting surface, and the inner wall of the opening of the receiving part is provided with a third contact surface. The connecting surface of the seal and the third contact surface are in contact to make the seal and the receiving part seal together.

5. The reactor according to claim 4, characterized in that, The third contact surface and / or connecting surface is set as a rough glass surface, and the third contact surface and / or connecting surface is coated with sodium hydroxide solution.

6. The reactor according to claim 1, characterized in that, An air inlet pipe is connected to the side wall of the first body so that gas flows into the first body through the air inlet pipe and then flows out through the through hole.

7. The reactor according to claim 6, characterized in that, The air intake pipe and the side wall of the first body are provided with an angle, the angle ranging from 0° to 90°, so that the water droplets in the air intake pipe can automatically flow back to the inner wall of the accommodating part.

8. The reactor according to claim 1, characterized in that, The outer wall of the second body is coated with a polytetrafluoroethylene coating.

9. The reactor according to claim 1, characterized in that, An arc hole is provided at the bottom of the first body, and the arc hole is positioned below the surface of the aqueous solution to be treated.

10. The reactor according to claim 9, characterized in that, The diameter of the arc hole ranges from 0.05 mm to 0.5 mm.

11. The reactor according to claim 1, characterized in that, The bottom of the accommodating part is provided with multiple first air vents.

12. An activated water preparation apparatus, characterized in that, The reactor includes any one of claims 1 to 11.

13. The activated water preparation apparatus according to claim 12, characterized in that, The receiving part is provided with a first contact surface. The activated water preparation device includes a water tank and a cover is provided on the water tank. The first contact surface is embedded into the inside of the cover so that the receiving part and the cover are fixedly connected.

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