Oxidation water treatment device

Abstract

The present invention discloses an oxidized water treatment device, which belongs to the field of water treatment technology and includes: a main body, including an electrode rod and a reaction tank; a bubbling assembly, including a bubbling tube and a quartz sand plate, the electrode rod is sleeved inside the bubbling tube, and the bottom of the bubbling tube is connected to the quartz sand plate as a whole; the plasma active material generated by the electrode rod discharge enters the reaction tank via the quartz sand plate bubbling; a gas circulation assembly, for providing gas for the electrode rod discharge; a mixing assembly, including an internal hollow mixing matrix, the mixing matrix is sleeved outside the bubbling tube, the mixing matrix is configured with an exhaust hole, the outer sleeve of the mixing matrix is movably provided with an outer cover, and the outer cover moves back and forth to achieve the blocking or release of the exhaust hole. The oxidized water treatment device of the present invention is stable and efficient, can avoid secondary pollution, and can improve resource utilization and ensure water treatment effect.

Description

Technical Field

[0001] The invention belongs to the field of water treatment, and in particular relates to an oxidation water treatment device. Background Art

[0002] Water treatment methods in the existing technology are divided into two categories: physical and chemical methods and biological methods. Among them, physical and chemical treatment methods such as extraction, adsorption and precipitation are time-consuming and labor-intensive, and have low efficiency. Although biological methods such as aerobic biotechnology, anaerobic biotechnology, and aerobic-anaerobic combined treatment technology are simple to operate, have low operating costs, and are easy to maintain, this method has high requirements for the temperature, pH value, and composition and concentration of the wastewater. For high-concentration organic wastewater containing multiple pollutants, the composition after biochemical treatment is complex, and some also have problems such as high chroma, which cannot meet the discharge requirements of the wastewater and require further deep treatment.

[0003] Patent application CN107381710A discloses a highly efficient aerated plasma treatment device for organic wastewater. The device comprises a high-voltage electrode and a grounding electrode, each connected to the positive and negative electrodes of a plasma power supply, and a reaction vessel. A microporous aeration tube is sheathed within the reaction vessel, forming an annular water trough between the vessel wall and the microporous aeration tube. An inner medium tube, closed at its lower end, is sheathed within the microporous aeration tube. The high-voltage electrode is embedded within the inner medium tube, and the grounding electrode is disposed within the annular water trough, forming a closed discharge zone between the microporous aeration tube and the inner medium tube. A water inlet and a return outlet are provided at the top and bottom of the annular water trough, respectively. The discharge zone is provided with an air extraction port and an air inlet port, respectively. This device fully utilizes the ozone generated by the discharge plasma and offers advantages such as stable and efficient performance, no secondary pollution, high speed, simple structure, and strong practicality.

[0004] Patent publication number US11939243B1 discloses a system for water treatment based on a flow-through hydrodynamic plasma reactor. The system comprises a housing; a channel within the housing, the channel comprising an inlet and an outlet; a conductive fluid mounted in the channel, wherein water encountering the conductive fluid flows around the conductive fluid, generating a turbulent region in which the water is in a two-phase state and includes bubbles; electrodes; and a pulse generator configured to apply one or more high-voltage, nanosecond-duration pulses to the electrodes and the fluid body, inducing ignition of a volumetric plasma discharge in the turbulent region. The volumetric plasma discharge generates one or more reactive oxygen species, and at least some contaminants are oxidized upon encountering the reactive oxygen species. The hydrodynamic effect of the fluid on the water combined with the generation of reactive oxygen species (ROS) in the volumetric plasma discharge in the turbulent region produces a synergistic effect, improving water treatment efficiency.

[0005] However, in existing equipment that uses plasma for water treatment, the utilization rate of active ingredients is low, which not only easily causes waste of resources but also affects the water treatment effect. Summary of the Invention

[0006] The purpose of the present invention is to provide a stable and efficient oxidation water treatment device that can avoid secondary pollution, improve resource utilization, and ensure water treatment effect.

[0007] The technical solutions adopted by the present invention to achieve the above-mentioned purpose are:

[0008] An oxidation water treatment device, comprising:

[0009] The main body includes electrode rods for providing active substances and a reaction tank for containing the liquid to be treated;

[0010] A power supply component, used for supplying power to the electrode rod;

[0011] The bubbling assembly includes a bubbling tube and a quartz sand plate. The electrode rod is sleeved inside the bubbling tube. The bottom of the bubbling tube is open and connected to the quartz sand plate as a whole. The plasma active substances generated by the discharge of the electrode rod bubble into the reaction tank through the quartz sand plate.

[0012] The gas circulation component is connected to the main body and is used to provide gas for the electrode rod discharge and return the gas products generated by the reaction between the plasma active substances generated by the electrode rod discharge and the liquid to the main body;

[0013] The mixing assembly includes a mixing matrix with a hollow interior, the mixing matrix is sleeved on the outside of the bubbling tube, and a quartz sand plate is placed inside the mixing matrix; an exhaust hole is arranged on the top of the mixing matrix, and an outer cover is movably provided on the outer sleeve of the mixing matrix, and the outer cover moves back and forth to achieve the blocking or release of the exhaust hole.

[0014] Furthermore, the reaction cell is a canister or tubular structure with a cover at its upper end, and is used to contain the liquid to be processed. The electrode rod extends through the cover into the reaction cell. The top end of the electrode rod extends out of the cover and is electrically connected to the power supply voltage output terminal of the power supply assembly.

[0015] Furthermore, the electrode rod is sheathed with a dielectric tube, which serves as the medium for the electrode rod's discharge. A bubbling assembly is sheathed on the outside of the dielectric tube, used to bubble the plasma-active substances generated by the electrode rod's discharge into the liquid. The bubbling tube is open at both ends: the top opening is connected to the reactor cover, and the bottom opening is integrally connected to a quartz sand plate. The quartz sand plate seals the bottom opening of the bubbling tube, allowing the plasma-active substances generated by the electrode rod's discharge to bubble into the liquid through the quartz sand plate.

[0016] Furthermore, the gas circulation component includes an oxygen cylinder, a gas supply pipe and a recovery pipe. The gas supply pipe is used to connect the oxygen cylinder and the reaction tank, and the gas outlet end of the gas supply pipe is connected to the medium pipe; the gas inlet end of the recovery pipe is connected to the top of the reaction tank, and the gas outlet end of the recovery pipe is connected to the gas supply pipe, which is used to recover the gas in the reaction tank, and can return the gas products generated by the reaction of the plasma active substances generated by the discharge of the electrode rod with the liquid to the main body.

[0017] Furthermore, the air supply pipe and the recovery pipe are respectively equipped with a pump body and / or a flow meter for adjusting the flow rate of the air flow entering the mixing matrix.

[0018] Furthermore, an extension portion is provided on the top of the mixing base, and a plurality of exhaust holes are arranged around the side wall of the extension portion. The outer cover body is sleeved on the outside of the extension portion, and the inner wall of the outer cover body is fitted with the outer wall of the extension portion; the top of the extension portion and the inner wall of the outer cover body are elastically connected by a spring or the like.

[0019] Using the above technical solution, an appropriate amount of liquid to be treated is input into the reaction tank; high-voltage alternating current is provided to the electrode rod through the power supply component, and gas is provided for the discharge of the electrode rod through the gas circulation component. As the gas is blown in, the plasma active substances generated by the discharge of the electrode rod will emerge from the bubbling tube in the form of bubbles and react with the wastewater.

[0020] The electrode rod discharges under the action of high-voltage alternating current and gas to generate plasma active substances. The plasma active substances are blown into the reaction tank through the quartz sand plate under the blowing of gas, and react with the liquid to treat the liquid, generating gas products and the treated liquid. The generated gas products are returned to the main body through the recovery pipe, and work together with the high-voltage alternating current to cause the electrode rod to discharge to generate plasma active substances and blow the plasma active substances into the reaction tank, thereby improving the utilization rate of the plasma active substances and avoiding resource waste.

[0021] The setting of the mixing component and the elastic connection between the outer cover and the mixing base also help to drive the surrounding water to intensify the disturbance of the bottom water during the up and down movement, thereby promoting the mixing effect.

[0022] In addition, the outer cover that moves back and forth up and down can achieve shear treatment of the bubbles discharged through the quartz sand plate, which helps to break the bubbles and reduce the bubble volume. The plasma active material is dispersed into smaller bubbles, thereby expanding the contact area between the plasma active material and the liquid wastewater, thereby helping to improve the utilization rate of the plasma active material and improve the efficiency of wastewater treatment.

[0023] According to one embodiment of the present invention, a rotatable air guide is disposed inside the mixing matrix, and the air guide is mounted on the outside of the bubbling tube; thus, the rotatable air guide can accelerate the stirring of the bubbles, thereby improving the uniformity of the plasma active material bubbling out through the quartz sand plate, which helps to improve the water treatment effect.

[0024] Furthermore, the air guide comprises a first air guide plate and a second air guide ring, with the first air guide plate positioned below the second air guide ring. Both the first air guide plate and the second air guide ring are rotatably connected to the mixing base, thereby facilitating the formation of a swirl flow and promoting mixing of bubbles and water. The dual-layer structure also enhances the mixing effect of the air guide.

[0025] According to one embodiment of the present invention, the first air guide plate is a conical structure, coaxially sleeved on the outside of the bubble tube, and the first air guide plate rotates with the bubble tube; the open end of the first air guide plate is arranged away from the bottom end of the bubble tube; and a guide plate is provided on the side of the first air guide plate facing the bottom end of the bubble tube.

[0026] According to one embodiment of the present invention, a plurality of second air guide rings are coaxially arranged, and guide vanes are disposed on the sidewalls of the second air guide rings. The guide vanes are arranged obliquely, that is, the extension direction of the guide vanes forms a certain angle with the axis of the second air guide rings.

[0027] Furthermore, two adjacent second air guide rings are connected via a connecting piece.

[0028] Preferably, the connecting member includes a connecting ring and a connecting rod. The connecting ring is provided with a circumferential annular groove. The second air guide ring is provided in a one-to-one correspondence with the connecting ring, and the edge of the second air guide ring is embedded in the annular groove of the connecting ring. Adjacent connecting rings are connected by a connecting rod. The innermost connecting ring is connected to the outer wall of the bubble tube via the connecting rod.

[0029] The second air guide ring can rotate relative to the connecting ring. In order to reduce the resistance during the rotation of the second air guide ring, a ball can be arranged inside the ring groove, and the ball rolls with the side wall of the second air guide ring.

[0030] Furthermore, a conical straightening ring is provided at one end of the second air guide ring away from the first air guide plate. The straightening ring has a conical structure, and the large end of the straightening ring is connected to the second air guide ring, and the small end of the straightening ring is arranged toward the extension portion of the mixing matrix.

[0031] In this way, bubbles discharged from the bottom of the bubbling tube, as they float upward from the bottom of the reaction tank, are first guided by the conical first air guide plate, which helps to disperse the bubbles and thus prevent the plasma-active materials from accumulating in a localized area of the reaction tank. The first air guide plate can be rotatably connected to the bubbling tube via a bearing or similar structure. Driven by an external motor or disturbed by an updraft, the first air guide plate rotates, increasing the disturbance of the water. Combined with the movement of the liquid by the guide plate, this improves the dispersion of the plasma-active materials.

[0032] Then, during the process of continuous floating, the plasma active material is diverted between multiple second air guide rings, and the diverted plasma active material is further mixed in the gap between two adjacent second air guide rings under the action of the guide vanes. In addition, the rotation of the second air guide ring also helps to increase the flow rate of the bubbles, thereby increasing the probability of collision between bubbles, thereby further improving the balance of the bubbles. The multiple air flows discharged from the second air guide rings are mixed again, which can further improve the uniformity of the plasma active material and can achieve the rectification of the air flow, so that the flow direction of the air flow tends to be consistent, which helps the divided multiple air flows to mix in the extension part and be discharged smoothly. The guide vanes on the two adjacent second air guide rings can be set to tilt in different directions. In this way, under the action of the air flow, the direction and speed of the two adjacent air guide rings are different, which also helps to improve the balance of the air flow when it is mixed again.

[0033] According to one embodiment of the present invention, the gas circulation assembly includes an oxygen cylinder, a gas supply pipe, and a recovery pipe. The gas supply pipe connects the oxygen cylinder to the reaction cell. The recovery pipe's gas inlet is connected to the top of the reaction cell, and its gas outlet is connected to the gas supply pipe. In this way, the oxygen cylinder provides gas for the electrode discharge.

[0034] According to one embodiment of the present invention, the reaction tank is connected to the wastewater tank through a water inlet pipe. A sampling port is provided at the bottom of the reaction tank. The sampling port is connected to a sampling tube. The end of the sampling tube away from the sampling port is connected to the water inlet pipe.

[0035] According to one embodiment of the present invention, a filter assembly is provided at the water inlet end of the reaction tank, and the filter assembly includes a filter matrix. A partition is provided inside the filter matrix, and the partition divides the internal space of the filter matrix into a first purification zone and a second purification zone arranged along the liquid flow direction. A connecting pipe is provided on the upper part of the partition for connecting the first purification zone and the second purification zone.

[0036] The first purification zone is provided with a water inlet connected to a water inlet pipe for conveying the liquid to be treated in the wastewater pool to the interior of the filter matrix. A stirring element is arranged inside the first purification zone.

[0037] A filter is arranged in the second purification area. The filter includes a filter housing and a filter main component arranged inside the filter housing. The top of the filter housing is connected to the connecting pipe through an auxiliary pipe. The filter housing is equipped with a drainage hole.

[0038] During operation, the filter assembly should maintain a higher liquid level in the first purification zone than in the second purification zone. This allows the filter assembly to intercept particulate matter before the wastewater enters the reaction tank, preventing large particles from clogging the internal components of the reaction tank, particularly the quartz sand plates, and ensuring smooth discharge of plasma-active substances.

[0039] In the first purification zone, the rotation of the agitator can guide the water flow into a vortex. Large particles in the water are centrifugally collected at the bottom of the first purification zone, achieving physical separation. The water in the upper layer of the second purification zone, which contains fewer particulate impurities, is discharged into the auxiliary pipe through a connecting pipe, changing the water flow direction so that the water flows downward along the auxiliary pipe and enters the filter. The filter then performs a secondary filtration on the water before it is transported to the interior of the reaction tank. In this way, primary filtration of the wastewater is achieved before the electrode rods generate plasma-active substances to treat chemical substances and other components in the water. This prevents bubbles generated by the bubbling component from adhering to the surfaces of larger particles, thereby improving the utilization rate of the plasma-active substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Schematic diagram of the overall structure of an oxidation water treatment device according to Example 1 of the present invention;

[0041] Figure 2 for Figure 1 A schematic structural diagram of the mixing assembly shown;

[0042] Figure 3 for Figure 1 A schematic diagram of the partially enlarged structure of the middle part A;

[0043] Figure 4 for Figure 1 A schematic diagram of the partially enlarged structure of part B in the middle;

[0044] Figure 5 This is a schematic structural diagram of a filter assembly according to Example 2 of the present invention;

[0045] Figure 6 for Figure 5 A schematic diagram of the structure of the filter shown;

[0046] Figure 7 for Figure 5 Schematic diagram of the assembly structure of the filter and auxiliary parts shown;

[0047] Figure 8for Figure 7 A schematic structural diagram of the auxiliary parts shown;

[0048] Figure 9 for Figure 7 Schematic diagram of the internal structure of the filter housing.

[0049] Figure numerals: electrode rod 1; medium tube 2; reaction tank 3; water inlet pipe 4; wastewater tank 5; sampling tube 6; air supply pipe 7; recovery pipe 8; power supply assembly 9; bubbling tube 10; quartz sand plate 11; mixing matrix 20; extension part 21; exhaust hole 22; outer cover 23; first air guide plate 24; second air guide ring 25; guide plate 26; connecting piece 27; first purification zone 28; second purification zone 29; partition 291; stirring element 30; connecting pipe 31; auxiliary pipe 32; auxiliary part 33; inner shell 34; outer shell 35; screening plate 36; filter shell 37; drainage hole 38; filter plate 39; slow flow bowl 40. DETAILED DESCRIPTION

[0050] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] Example 1

[0052] Figures 1 to 4 The schematic diagram shows an oxidized water treatment device according to an embodiment of the present invention. As shown in the figure, the device includes a main body, a power supply component 9, a bubbling component, and a gas circulation component. The main body includes an electrode rod 1 for providing active substances and a reaction tank 3 for containing the liquid to be treated; the power supply voltage output end in the power supply component 9 is electrically connected to the electrode rod 1, and the power supply voltage output end provides high-voltage alternating current to the electrode rod 1 through the control of the control system; the bubbling component includes a bubbling tube 10 and a quartz sand plate 11. The electrode rod 1 is sleeved inside the bubbling tube 10, and the bottom of the bubbling tube 10 is open and connected to the quartz sand plate 11 as a whole. The plasma active substances generated by the discharge of the electrode rod 1 are bubbled into the reaction tank 3 through the quartz sand plate 11; the gas circulation component is connected to the main body, and is used to provide gas for the discharge of the electrode rod 1 and return the gas products generated by the reaction of the plasma active substances generated by the discharge of the electrode rod 1 with the liquid to the main body.

[0053] Furthermore, the reaction tank 3 is a can-shaped or tubular structure with a cover at the top, and is used to hold the liquid to be treated. The electrode rod 1 extends into the interior of the reaction tank 3 through the cover. The top end of the electrode rod 1 extends out of the cover and is electrically connected to the power supply voltage output terminal of the power supply assembly 9.

[0054] Furthermore, the electrode rod 1 is sheathed with a dielectric tube 2, which serves as the discharge medium for the electrode rod 1. A bubbling assembly is sheathed on the outside of the dielectric tube 2, used to bubble the plasma-active substances generated by the discharge of the electrode rod 1 into the liquid. The bubbling tube 10 is open at both ends. The top opening is connected to the cover of the reaction cell 3, and the bottom opening is integrally connected to a quartz sand plate 11. The quartz sand plate 11 seals the bottom opening of the bubbling tube 10, allowing the plasma-active substances generated by the discharge of the electrode rod 1 to bubble into the liquid through the quartz sand plate 11.

[0055] Furthermore, the gas circulation component includes an oxygen cylinder, a gas supply pipe 7 and a recovery pipe 8. The gas supply pipe 7 is used to connect the oxygen cylinder and the reaction pool 3, and the gas outlet end of the gas supply pipe 7 is connected to the medium pipe 2; the gas inlet end of the recovery pipe 8 is connected to the top of the reaction pool 3, and the gas outlet end of the recovery pipe 8 is connected to the gas supply pipe 7, which is used to recover the gas in the reaction pool 3, and can return the gas product generated by the reaction of the plasma active substance generated by the discharge of the electrode rod 1 with the liquid to the main body.

[0056] In this manner, the electrode rod 1, acting as a high-voltage electrode, is connected to the power supply voltage output terminal of the power supply assembly 9. It also forms a DBD structure with the dielectric tube 2 (serving as the medium) and the ground electrode. Oxygen from the oxygen cylinder in the gas circulation assembly enters the reaction cell 3 via the gas supply tube 7, driven by the pump. The power supply input terminal provides high-voltage AC power to the electrode rod 1. When supplied with high-voltage AC power and oxygen, the device generates a gas discharge. The resulting plasma-active species are then bubbled through the quartz sand plate 11 into the wastewater, where they react with the wastewater. To fully utilize the ozone generated by the device's reaction, the ozone is recycled through the recovery tube 8. Furthermore, the gas supply tube 7 can be combined with a gas flowmeter to monitor the gas flow entering the reaction cell 3. The electrode rod 1 can be made of metals such as titanium, stainless steel, or copper; the reaction cell 3 can be made of materials such as acrylic or borosilicate glass; and the dielectric tube 2 and bubbling tube 10 can be made of quartz glass.

[0057] The bubbling tube 10 is also equipped with a mixing assembly. The mixing assembly includes a hollow mixing matrix 20. The interior of the mixing matrix 20 is connected to the reaction tank 3, allowing liquid inside the reaction tank 3 to enter the interior of the mixing matrix 20. The mixing matrix 20 is sleeved on the outside of the bubbling tube 10, and the quartz sand plate 11 is placed inside the mixing matrix 20. The top of the mixing matrix 20 is equipped with a vent 22. The outer cover 23 is movably mounted on the outer cover of the mixing matrix 20, and the outer cover 23 moves back and forth to block or release the vent 22.

[0058] Furthermore, the air supply pipe 7 and the recovery pipe 8 are respectively equipped with a pump body and / or a flow meter for adjusting the flow rate of the airflow entering the mixing matrix 20.

[0059] Furthermore, the top of the mixing base 20 is provided with an extension 21, with multiple exhaust holes 22 surrounding the sidewalls of the extension 21. An outer cover 23 is sleeved over the extension 21, with the inner wall of the outer cover 23 in contact with the outer wall of the extension 21. The top of the extension 21 and the inner wall of the outer cover 23 are elastically connected via a spring or other means. Both the mixing base 20 and the outer cover 23 are made of insulating materials, such as acrylic.

[0060] Using the above technical solution, an appropriate amount of liquid to be treated is input into the reaction tank 3; high-voltage alternating current is provided to the electrode rod 1 through the power supply component 9, and gas is provided for the discharge of the electrode rod 1 through the gas circulation component. As the gas is blown in, the plasma active substances generated by the discharge of the electrode rod 1 will emerge from the bubbling tube 10 in the form of bubbles and react with the wastewater.

[0061] The electrode rod 1 discharges under the action of high-voltage alternating current and gas to generate plasma active substances. The plasma active substances are bubbled into the reaction tank 3 through the quartz sand plate 11 under the blowing of gas, and react with the liquid to treat the liquid to generate gas products and the treated liquid; the generated gas products are returned to the main body through the recovery pipe 8, and work together with the high-voltage alternating current to cause the electrode rod 1 to discharge to generate plasma active substances and blow the plasma active substances into the reaction tank 3, thereby improving the utilization rate of the plasma active substances and avoiding resource waste.

[0062] Furthermore, the arrangement of the mixing assembly, in which the outer cover 23 is elastically connected to the mixing base 20, also helps to drive the surrounding water bodies to intensify the disturbance of the bottom water body during the up and down movement, thereby promoting the mixing effect.

[0063] In addition, the outer cover 23 that moves back and forth up and down can achieve shear treatment of the bubbles discharged through the quartz sand plate 11, which helps to break the bubbles and reduce the bubble volume. The plasma active material is dispersed into smaller bubbles, thereby expanding the contact area between the plasma active material and the liquid wastewater, thereby helping to improve the utilization rate of the plasma active material and improve the efficiency of wastewater treatment.

[0064] The water body can carry the plasma active substances formed by bubbling through the quartz sand plate 11 and diffuse in the water body, and realize the rapid breakage of bubbles in the disturbance process, that is, it helps to quickly disperse the active substances and improve the balance of the active substances in the wastewater, thereby not only improving the effect of the plasma; but also avoiding the difference in treatment effect caused by the distance between the wastewater in the main part and the discharge end of the plasma active substances in the wastewater treatment without setting a stirring device, that is, improving the balance between the upper water body and the lower water body in the wastewater treatment.

[0065] Furthermore, the movable outer cover 23 and the continuously discharged air flow help to promote the upwelling of the bottom water in the reaction tank 3, thereby preventing the deposition of impurities in the bottom water and improving the decomposition efficiency of large particle impurities or flocculent structures in the bottom, which helps to improve the uniformity of the water sample inside the reaction tank 3, thereby providing accuracy and reliability of the results during the test.

[0066] The interior of the mixing matrix 20 is provided with a rotatable air guide, which is sleeved on the outside of the bubbling tube 10; thus, the rotatable air guide can accelerate the stirring of the bubbles, thereby improving the uniformity of the plasma active material bubbling out through the quartz sand plate 11, which helps to improve the water treatment effect.

[0067] Furthermore, the air guide comprises a first air guide plate 24 and a second air guide ring 25, with the first air guide plate 24 positioned below the second air guide ring 25. Both the first air guide plate 24 and the second air guide ring 25 are rotatably connected to the mixing base 20, thereby helping to form a swirl flow and promote mixing of bubbles and water. The two-layer structure also helps enhance the mixing effect of the air guide.

[0068] The first air guide plate 24 is a conical structure, coaxially sleeved on the outside of the bubble tube 10, and the first air guide plate 24 rotates with the bubble tube 10; the open end of the first air guide plate 24 is set away from the bottom end of the bubble tube 10; the first air guide plate 24 is provided with a guide plate 26 on the side facing the bottom end of the bubble tube 10.

[0069] The second air guide rings 25 are coaxially sleeved, and the sidewalls of the second air guide rings 25 are provided with guide vanes 26. The guide vanes 26 are tilted, that is, the extension direction of the guide vanes 26 forms a certain angle with the axis of the second air guide ring 25.

[0070] Furthermore, two adjacent second air guide rings 25 are connected via a connecting piece 27 .

[0071] Preferably, the connecting member 27 includes a connecting ring and a connecting rod. The connecting ring is provided with a circumferential annular groove. The second air guide ring 25 is provided in a one-to-one correspondence with the connecting ring, and the edge of the second air guide ring 25 is embedded in the annular groove of the connecting ring. Adjacent connecting rings are connected by a connecting rod. The innermost connecting ring is connected to the outer wall of the bubble tube 10 via the connecting rod.

[0072] The second air guide ring 25 can rotate relative to the connecting ring. In order to reduce the resistance during the rotation of the second air guide ring 25, a ball bearing can be provided inside the ring groove, and the ball bearing can be in rolling engagement with the side wall of the second air guide ring 25.

[0073] Furthermore, a conical straightening ring is provided at one end of the second air guide ring 25 away from the first air guide plate 24. The straightening ring has a conical structure, and the large end of the straightening ring is connected to the second air guide ring 25, and the small end of the straightening ring is arranged toward the extension portion 21 of the mixing base 20.

[0074] In this way, bubbles discharged from the bottom of the bubbling tube 10 are first guided by the conical first air guide plate 24 as they float upward from the bottom of the reaction tank 3, helping to diffuse the bubbles to the surrounding area, thereby preventing the plasma active substances from accumulating in a local area of the reaction tank 3. The first air guide plate 24 can be rotatably connected to the bubbling tube 10 via a bearing or similar structure. Driven by an external motor or disturbed by an updraft, the first air guide plate 24 rotates, which can intensify the disturbance of the water body. In addition, the guide plate 26 stirs the liquid, thereby improving the dispersion effect of the plasma active substances.

[0075] Then, as the plasma-active material continues to rise, it is divided among the multiple second air guide rings 25. The divided plasma-active material is further mixed within the gap between two adjacent second air guide rings 25 by the action of the guide vanes 26. Furthermore, the rotation of the second air guide rings 25 helps increase the velocity of the bubbles, thereby increasing the probability of collisions between bubbles and further improving the balance of the bubbles. The multiple airflows discharged from the second air guide rings 25 are remixed, further improving the uniformity of the plasma-active material. This also straightens the airflow, aligning its direction and facilitating the mixing and smooth discharge of the multiple divided airflows within the extension 21. The guide vanes 26 on two adjacent second air guide rings 25 can be tilted in different directions. This allows the airflow to move in different directions and rotate at different speeds, further helping to improve the balance of the remixing airflows.

[0076] Reaction tank 3 is connected to wastewater tank 5 via water inlet pipe 4. A sampling port is located at the bottom of reaction tank 3, connected to sampling tube 6. The end of sampling tube 6, remote from the sampling port, is connected to water inlet pipe 4, enabling water circulation. This facilitates real-time water sampling during the water treatment process and allows for monitoring of treatment effectiveness. Sampling tube 6 also interfaces with a pump.

[0077] Example 2

[0078] Figures 5 to 9 The following schematically shows an oxidation water treatment device according to another embodiment of the present invention, which differs from Example 1 in that:

[0079] The water inlet end of the reaction tank 3 is provided with a filter assembly, which includes a filter matrix. A partition 291 is provided inside the filter matrix. The partition 291 divides the internal space of the filter matrix into a first purification zone 28 and a second purification zone 29 arranged along the liquid flow direction. A connecting pipe 31 is provided on the upper part of the partition 291 for connecting the first purification zone 28 and the second purification zone 29.

[0080] The first purification zone 28 has a water inlet connected to the water inlet pipe 4, which is used to transport the liquid to be treated in the wastewater tank 5 into the interior of the filter matrix. A stirring element 30 is disposed within the first purification zone 28. Furthermore, the stirring element 30 includes a rotating shaft with a plurality of blades surrounding the shaft. The height of the blades can be set to approximately half the height of the liquid in the first purification zone 28. The rotating shaft is connected to a motor, which can drive the rotating shaft to rotate at a low speed.

[0081] A filter is disposed in the second purification zone 29 . The filter includes a filter housing 37 and a filter main component disposed inside the filter housing 37 . The top of the filter housing 37 is connected to the connecting pipe 31 through an auxiliary pipe 32 . The filter housing 37 is provided with a drainage hole 38 .

[0082] During operation of the filtration assembly, the liquid level in the first purification zone 28 should be kept higher than the liquid level in the second purification zone 29. This allows the filtration assembly to intercept particulate matter before the wastewater enters the reaction tank 3, thereby preventing large particles from clogging the components within the reaction tank 3, particularly the quartz sand plate 11, and ensuring smooth discharge of plasma-active substances.

[0083] Within the first purification zone 28, the rotation of the agitator 30 directs the water flow into a vortex. Large particles and other impurities in the water are centrifugally collected at the bottom of the first purification zone 28, achieving physical separation. The water in the upper layer of the second purification zone 29, which contains fewer particulate impurities, is discharged through a connecting pipe 31 into an auxiliary pipe 32, redirecting the water flow downward along the auxiliary pipe 32 and into the filter. The filter then performs a secondary filtration on the water before transporting it to the interior of the reaction tank 3. This allows for primary filtration of the wastewater before the electrode rod 1 generates plasma-active substances to treat chemical substances and other components in the water. This prevents bubbles generated by the bubbling assembly from adhering to the surfaces of larger particles, thereby improving the utilization rate of the plasma-active substances.

[0084] Furthermore, the water inlet end of the filter housing 37 is equipped with an auxiliary component 33. This auxiliary component 33 includes a vertical flow channel, one end of which is connected to the auxiliary pipe 32 and the other end is connected to the main filter element within the filter housing 37. The auxiliary component 33 comprises an inner housing 34 and an outer housing 35, which are arranged inside and outside of each other. The bottom of the outer housing 35 is connected to the main filter element within the filter housing 37 via an elastic member such as a spring. A screen plate 36 is arranged between the inner and outer housings 34 and 35, with its inner and outer sides connected to the inner and outer housings 34 and 35, respectively.

[0085] In this way, the space between the inner shell 34 and the outer shell 35 is divided into a plurality of flow spaces by using the screen plate 36, so that the water flow can be diverted.

[0086] The top of the filter housing 37 is open for water intake. Generally, the filter housing 37 can be set in a spherical or hemispherical shape, and a plurality of drainage holes 38 can be arranged around its side wall to discharge the filtered wastewater from multiple directions to the internal space of the second purification zone 29. The second purification zone 29 is provided with a water outlet, which is connected to the water inlet pipe 4 at the other end, and is used to transport the filtered wastewater to the interior of the reaction tank 3. The main filter component includes a plurality of filter plates 39 stacked up and down, and the two adjacent filter plates 39 are connected by elastic parts such as springs. The bottom of the main filter component can also be provided with a plurality of inner and outer slow flow bowls 40, and the slow flow bowl 40 is arranged inside the filter housing 37. After being filtered by the plurality of filter plates 39, the wastewater enters the slow flow bowl 40, flows through the plurality of slow flow bowls 40 from the inside to the outside, and is finally discharged through the drainage holes 38 on the filter housing 37.

[0087] Thus, the multiple stacked filter plates 39 inside the filter housing 37 can achieve multi-stage filtration of wastewater and form multi-stage retention spaces for particulate matter. The expansion of the retention space can reduce the frequency of replacement or cleaning of the filter plates 39.

[0088] The coordination of the filter housing 37 and the auxiliary component 33 enables wastewater to be refluxed and diverted, improving the filtration effect. After the wastewater enters the filter housing 37, it is discharged from the drain hole 38 on the filter housing 37 due to the impact of the water body. This diverts the water into numerous small streams. The small streams have an impact effect on the inner wall of the second purification zone 29, preventing the inner wall from being adhered to by dirt. The water flow is then discharged from the outlet of the second purification zone 29. During the process of discharging the wastewater at the outlet, the small streams converge again. The impact effect of the converged water flow is relatively enhanced, and it also has a flushing effect on the area near the outlet.

[0089] A filter is installed within the second purification zone 29. The built-in auxiliary tube 32 and auxiliary component 33 create a vertically directed upward and downward flow during water filtration, reducing the likelihood of filter clogging. Furthermore, the auxiliary component 33 is elastically connected to the filter housing 37 and the multiple filter plates 39. The vibration of the filter plates 39 and filter housing 37 under the impact of the water flow prevents clogging and facilitates the exchange of water between the upper and lower layers, thereby improving filtration effectiveness.

[0090] The up and down vertical movement of the filter shell 37 and the auxiliary component 33 can promote the up and down exchange of water inside the second purification area 29, so as to increase the probability of the purified water entering the filter shell 37 for re-purification for the second time, especially guiding the sediment at the bottom of the second purification area 29 to enter the filter shell 37 again for filtration, and the up and down movement of the filter shell 37 and the auxiliary component 33 in the second purification area 29 helps to push the water to be discharged through the outlet faster, thereby increasing the outflow rate of the wastewater.

[0091] The conventional operations in the operating steps of the present invention are well known to those skilled in the art and will not be described in detail here.

[0092] The embodiments described above provide a detailed description of the technical solutions of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, supplements or similar substitutions made within the scope of the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An oxidation water treatment device, characterized in that: include: The main body comprises an electrode rod (1) for providing active substances and a reaction pool (3) for containing liquid to be treated; a bubbling assembly comprises a bubbling tube (10) and a quartz sand plate (11), wherein the electrode rod (1) is sleeved inside the bubbling tube (10), the bubbling tube (10) is open at the bottom and is integrally connected to the quartz sand plate (11); the plasma active substances generated by the discharge of the electrode rod (1) are bubbled into the reaction pool (3) via the quartz sand plate (11); A gas circulation component connected to the main body portion and used to provide gas for the discharge of the electrode rod (1); A mixing assembly comprises a mixing matrix (20) with a hollow interior, wherein the mixing matrix (20) is sleeved on the outside of the bubbling tube (10), and the quartz sand plate (11) is placed inside the mixing matrix (20); the mixing matrix (20) is provided with an exhaust hole (22), and the outer sleeve of the mixing matrix (20) is movably provided with an outer cover (23), and the outer cover (23) moves back and forth to achieve blocking or releasing of the exhaust hole (22); A rotatable air guide is provided inside the mixing base (20), and the air guide is sleeved on the outside of the bubbling tube (10).

2. The oxidation water treatment device according to claim 1, characterized in that An extension portion (21) is provided on the top of the mixing matrix (20), and a plurality of exhaust holes (22) are arranged around the side wall of the extension portion (21). The outer cover (23) is sleeved on the outside of the extension part (21), and the inner wall of the outer cover (23) is arranged in close contact with the outer wall of the extension part (21); the top of the extension part (21) is elastically connected to the inner wall of the outer cover (23).

3. The oxidation water treatment device according to claim 1, characterized in that The air guide member comprises a first air guide plate (24) and a second air guide ring (25), wherein the first air guide plate (24) is arranged below the second air guide ring (25); The water inlet end of the reaction tank (3) is provided with a filter assembly, which includes a filter matrix. A partition (291) is provided inside the filter matrix. The partition (291) divides the internal space of the filter matrix into a first purification zone (28) and a second purification zone (29) arranged along the liquid flow direction. A connecting pipe (31) is provided on the upper part of the partition (291) for connecting the first purification zone (28) and the second purification zone (29).

4. The oxidation water treatment device according to claim 3, characterized in that The first air guide plate (24) is a conical structure, and the first air guide plate (24) is rotatably matched with the bubbling tube (10); The open end of the first air guide plate (24) is arranged away from the bottom end of the bubbling tube (10); and a guide plate (26) is provided on one side of the first air guide plate (24) facing the bottom end of the bubbling tube (10).

5. The oxidation water treatment device according to claim 3, characterized in that: A plurality of the second air guide rings (25) are coaxially sleeved, and guide plates (26) are arranged on the side walls of the second air guide rings (25).

6. The oxidation water treatment device according to claim 1, characterized in that The gas circulation assembly comprises an oxygen cylinder, a gas supply pipe (7) and a recovery pipe (8); the gas supply pipe (7) is used to connect the oxygen cylinder and the reaction pool (3); the gas inlet end of the recovery pipe (8) is connected to the top of the reaction pool (3), and the gas outlet end of the recovery pipe (8) is connected to the gas supply pipe (7).

7. The oxidation water treatment device according to claim 1, characterized in that The reaction tank (3) is connected to the wastewater tank (5) via a water inlet pipe (4). A sampling port is provided at the bottom of the reaction tank (3). The sampling port is connected to a sampling tube (6). The end of the sampling tube (6) away from the sampling port is connected to the water inlet pipe (4).

8. The oxidation water treatment device according to claim 1, characterized in that The water inlet end of the reaction tank (3) is provided with a filter assembly, the filter assembly comprising a filter matrix, the interior of the filter matrix being provided with a partition (291), the partition (291) dividing the interior space of the filter matrix into a first purification zone (28) and a second purification zone (29) arranged along the liquid flow direction, and the upper portion of the partition (291) being provided with a connecting pipe (31) for connecting the first purification zone (28) with the second purification zone (29); A stirring element (30) is disposed inside the first purification zone (28); A filter is provided in the second purification zone (29), the filter comprising a filter housing (37) and a filter main component arranged inside the filter housing (37), the top of the filter housing (37) is connected to the connecting pipe (31) via an auxiliary pipe (32), and the filter housing (37) is provided with a drainage hole (38).

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