Efficient catalytic ozonation equipment

Abstract

The invention belongs to the technical field of sewage treatment, and relates to efficient catalytic ozonation equipment which comprises a water treatment tank and an ozone generation mechanism, one end of the water treatment tank is provided with a water inlet pipe orifice, the other end of the water treatment tank is provided with a water outlet pipe orifice, and a sewage pipeline is connected from the water inlet pipe orifice and flows through the water treatment tank for treatment. The multiple independent aeration chambers are formed in the water treatment tank through the upper partition plates and the lower partition plates, the sewage flow channels are formed through the upper partition plates and the lower partition plates, catalytic ozonation treatment of the multiple aeration chambers is conducted at a time when sewage is discharged, and the vacuum pump is installed at the top of each aeration chamber to recover ozone waste gas escaping from the sewage; and the gas suction pipe and the exhaust pipe are used for secondary conveying, so that the problem of waste caused by saturation of ozone is solved, the utilization rate of ozone is increased, raw material resources are saved, the economic cost of tail gas treatment is reduced, and the effect of efficient catalytic oxidation is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to high-efficiency ozone catalytic oxidation equipment. Background Art

[0002] Ozone catalytic oxidation is a wastewater treatment technology that uses ozone (O3) as an oxidant and accelerates the oxidation reaction process through a catalyst. This technology is often used in environmental governance and wastewater treatment, and can effectively remove organic pollutants, odors, and bacteria.

[0003] However, in the prior art, when using ozone catalytic oxidation technology for water treatment, an excess of ozone is usually introduced into the reaction system to ensure sufficient oxidation reaction. Although this approach can increase the initial rate of the reaction, in fact, the solubility of ozone in water is limited. As the concentration increases, the excess ozone often exceeds the solubility of the water body. When the ozone concentration in the water exceeds its solubility limit, the excess ozone will escape from the water body in the form of gas; in addition, the sewage is in a flowing state during ozone catalytic oxidation, and the active water movement makes it easier for the dissolved ozone to escape again. The ozone escaping from the liquid surface cannot be fully utilized, which not only causes a waste of ozone, but also affects the overall utilization efficiency of the system; more importantly, the escaping ozone needs to be treated by an exhaust gas treatment device to reduce the potential impact on air quality and the environment. This additional treatment step will increase the burden on the exhaust gas treatment system, which not only consumes more energy, but also increases the economic cost of investment, and delays the global governance efficiency in the later stage of the reaction. At the same time, the overall working efficiency of the system is affected, resulting in unsatisfactory water treatment effects. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency ozone catalytic oxidation device to solve the problem proposed in the above-mentioned background technology that when using ozone catalytic oxidation treatment, in order to ensure sufficient reaction, excessive ozone is easily escaped, resulting in low ozone utilization, increasing the burden of exhaust gas treatment, and affecting the efficiency of overall water treatment.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency ozone catalytic oxidation device, comprising a water treatment box and an ozone generating mechanism, wherein one end of the water treatment box is provided with a water inlet, the other end of the water treatment box is provided with a water outlet, a catalytic layer suspension is provided inside the water treatment box, the catalytic layer suspension is filled with a catalyst, the ozone generating mechanism introduces ozone into the water treatment box, and decomposes organic pollutants in sewage under the action of the catalyst, an aeration ring pipe is also provided inside the water treatment box, the aeration ring pipe is located below the catalytic layer suspension, the ozone generating mechanism is located on one side of the water treatment box, and a negative pressure mechanism is provided on the other side of the water treatment box, the negative pressure mechanism is used to extract ozone from the top of the water treatment box to form a negative pressure environment, and recycle the escaped ozone; The negative pressure mechanism includes a vacuum pump, an air intake pipe, an air exhaust pipe and an annular pipe. The vacuum pump is installed on the top surface of the water treatment tank. The vacuum pump is connected to the interior of the water treatment tank through the air intake pipe. The vacuum pump is connected to the annular pipe through the air exhaust pipe. The annular pipe is fixed to the outer wall of the water treatment tank through a pipe clamp. A bypass pipe is connected between the annular pipe and the aeration ring pipe. A waterproof sealing ring is provided at the connection between the bypass pipe and the water treatment tank.

[0006] Preferably, an upper partition, a lower partition A and a lower partition B are provided inside the water treatment tank, the upper partition is located on one side of the catalyst layer suspension, the lower partition A and the lower partition B are located on the other side of the catalyst layer suspension, the top end of the upper partition is connected to the inner top wall of the water treatment tank, and the bottom ends of the lower partition A and the lower partition B are connected to the inner bottom wall of the water treatment tank.

[0007] Preferably, the top end of the lower partition A is bent to one side to form arc plate 1, and the top end of the lower partition B is bent to one side to form arc plate 2. A chamber is formed between the lower partition A and the lower partition B, and a window is connected to the outer wall of the chamber.

[0008] Preferably, the ozone generating mechanism includes an ozone generator, an air pipe, a water pipe, a water pump and a jet assembly, wherein the water pump is used to draw water from the bottom of the water treatment tank, the water pipe is used to transmit water medium, the ozone generator is used to prepare ozone, the air pipe is used to supply ozone to the jet assembly, and the jet assembly includes a contraction tube, a throat and a diffuser connected in sequence from bottom to top, the contraction tube increases the water flow rate by reducing the tube diameter, the air pipe is connected at the throat position, and the high-flow water flow formed by the throat generates negative pressure, so that the ozone in the air pipe is adsorbed to form a mixed gas and liquid, and the mixed gas and liquid is discharged from the diffuser.

[0009] Preferably, the four side walls of the aeration ring tube are all equipped with jet nozzles, and spiral water flow is formed by spraying through the four jet nozzles. The middle part of the catalyst layer suspension is filled with fine catalyst, and the four side edge parts of the catalyst layer suspension are filled with coarse catalyst.

[0010] Preferably, an ozone destroyer is fixedly connected to the top of the water treatment tank, and the ozone destroyer absorbs ozone escaping from the liquid surface of the water treatment tank, and the tail gas purification is achieved through thermal decomposition and catalytic decomposition.

[0011] Preferably, a second magnetic pole plate is installed on one side of the water treatment box, and a first magnetic pole plate is installed on the other side of the water treatment box, and the first magnetic pole plate and the second magnetic pole plate provide a magnetic field inside the water treatment box.

[0012] Preferably, electrode sheets are installed inside the upper separator and the lower separator B, the upper separator is connected to the positive electrode, and the lower separator B is connected to the negative electrode.

[0013] Preferably, the catalyst filled in the catalytic layer suspension is one or more of TiO2, MnO2, Fe2O3 or Fe3O4.

[0014] Preferably, a pressure relief valve is provided inside the bypass pipe, and when the ozone stored in the annular pipe reaches a pressure threshold, the annular pipe mixes the ozone into the aeration ring pipe to form a mixed gas and liquid.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a plurality of independent aeration chambers are formed in the water treatment tank by upper and lower baffles, and a sewage flow channel is formed by the upper and lower baffles, so that ozone catalytic oxidation treatment is carried out in a plurality of aeration chambers at one time when sewage is discharged, and a vacuum pump is installed on the top of each aeration chamber to recover the ozone waste gas escaping from the sewage, and a suction pipe and an exhaust pipe are used for secondary transportation, thereby reducing the waste problem of ozone caused by saturation, improving the utilization rate of ozone, saving raw material resources, and reducing the economic cost of tail gas treatment, and achieving the effect of efficient catalytic oxidation.

[0016] 2. In the present invention, while the ozone on the top of the water treatment tank is absorbed by the vacuum pump for secondary utilization, a negative pressure environment is also formed on the top of the water treatment tank, so that the water treatment tank becomes a negative pressure water tank. The window is opened near the bottom of the water treatment tank. The pressure difference formed by the atmospheric pressure on the liquid surface at the window and the internal negative pressure can be used to counteract the gravitational potential energy generated by the liquid level difference at the window, so that the sewage in the water treatment tank will not overflow. At this time, the impurities between the lower partition A and the lower partition B can be handled more easily, thereby achieving the cleaning effect of the inside of the water treatment tank without stopping the sewage treatment process, thereby improving the working efficiency of water treatment.

[0017] 3. In the present invention, an electric field is set in the left and right directions of the water treatment box, and a magnetic field is set in the front and back directions of the water treatment box. The electric field is used to direct the movement of hydroxyl radicals catalyzed by ozone, so that the treatment of organic matter is concentrated on the right side of the aeration chamber, so that the solid impurities formed after the oxidation of the organic matter can be recovered in the interlayer. At the same time, the ion radicals are also affected by the Lorentz force of the magnetic field when they move under the guidance of the electric field. The downward Lorentz force offsets the inertial force of the water flow on the ions, thereby preventing the formed solid impurities from escaping upward, and preventing the subsequent impurities from affecting the catalytic process of other aeration chambers.

[0018] 4. In the present invention, the aeration ring tube is arranged under the catalyst layer suspension, and the jet nozzle is arranged at the eccentric position of the aeration ring tube, so that the ozone mixed gas and liquid ejected by the jet nozzle flow in a spiral shape, and the centrifugal force generated by the spirally flowing sewage is used to centrifugally partition the organic matter in the sewage, and a corresponding catalyst is arranged on the catalyst layer suspension, so that ozone can be better catalytically oxidized according to the different organic impurities, thereby completing the targeted deep treatment of the sewage.

[0019] 5. In the present invention, an ozone destroyer is arranged above the water outlet of the water treatment tank, and ozone in the tail gas is decomposed and treated by electrothermal decomposition, so that the tail gas emission of the water treatment can meet the requirements of green production.

[0020] 6. In the present invention, a check valve is provided at the connection between the throat and the air duct, and a chamber is installed at the middle end of the air duct to avoid the problem of sewage backflow due to unstable power supply voltage. At the same time, a pressure relief valve is installed inside the bypass pipe so that there is enough air pressure inside the annular pipe to supply ozone to the aeration ring pipe, which also avoids the backflow of liquid in the aeration ring pipe and ensures the safety of the electrical appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional structure diagram of the high-efficiency ozone catalytic oxidation device of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure diagram of the high-efficiency ozone catalytic oxidation device of the present invention is shown in FIG. Figure 2 ; Figure 3 A schematic diagram showing the flow direction of sewage in a water treatment tank of the high-efficiency ozone catalytic oxidation device of the present invention; Figure 4 It is a top view of the high-efficiency ozone catalytic oxidation device of the present invention; Figure 5 It is a cross-sectional view of the internal structure of the high-efficiency ozone catalytic oxidation device of the present invention; Figure 6 It is a side view of the high-efficiency ozone catalytic oxidation equipment of the present invention; Figure 7It is a front view of the pipeline structure in the high-efficiency ozone catalytic oxidation equipment of the present invention; Figure 8 It is a three-dimensional diagram of the pipeline structure in the high-efficiency ozone catalytic oxidation equipment of the present invention; Fig. 9 It is a top view of the overall structure of the aeration ring pipe in the high-efficiency ozone catalytic oxidation equipment of the present invention; Fig.10 It is a schematic diagram showing the principle of the spiral vortex formed by the aeration ring pipe in the high-efficiency ozone catalytic oxidation equipment of the present invention; Fig.11 It is a structural schematic diagram of the oxygen generating mechanism in the high-efficiency ozone catalytic oxidation equipment of the present invention; Fig.12 It is a working principle diagram of the jet assembly in the high-efficiency ozone catalytic oxidation equipment of the present invention; Fig.13 For the present invention Fig.11 A magnified rendering of the local structure at point A in the middle; Fig.14 The schematic diagram of the principle of organic oxide impurities moving in sewage in the high-efficiency ozone catalytic oxidation equipment of the present invention is shown in FIG. Figure 1 ; Fig.15 The schematic diagram of the principle of organic oxide impurities moving in sewage in the high-efficiency ozone catalytic oxidation equipment of the present invention is shown in FIG. Figure 2 ; Fig.16 It is a top view of the catalyst layer suspension in the high-efficiency ozone catalytic oxidation equipment of the present invention; Fig.17 It is a front view of the catalyst layer suspension in the high-efficiency ozone catalytic oxidation equipment of the present invention.

[0022] In the figure: 1. water treatment box; 10. first magnetic pole plate; 11. second magnetic pole plate; 12. water inlet pipe; 13. water outlet pipe; 14. window; 15. upper partition; 16. lower partition A; 17. lower partition B; 2. ozone generating mechanism; 21. ozone generator; 22. air guide pipe; 23. water guide pipe; 24. water pump; 25. jet assembly; 251. contraction tube; 252. throat; 253. diffusion tube; 3. negative pressure mechanism; 31. vacuum pump; 32. suction pipe; 33. exhaust pipe; 34. ring pipe; 35. bypass pipe; 4. ozone destroyer; 5. catalyst layer suspension; 6. aeration ring pipe; 60. jet nozzle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1: According to Figure 1 - Fig.17 As shown: High-efficiency ozone catalytic oxidation equipment, including a water treatment box 1 and an ozone generating mechanism 2, one end of the water treatment box 1 is provided with a water inlet pipe port 12, and the other end of the water treatment box 1 is provided with a water outlet pipe port 13, the sewage pipe is connected from the water inlet pipe port 12, and flows into the water treatment box 1 for treatment, and then discharged from the water outlet pipe port 13, the water treatment box 1 is provided with a catalytic layer suspension 5, the catalytic layer suspension 5 is filled with a catalyst, the ozone generating mechanism 2 introduces ozone into the water treatment box 1, and decomposes organic pollutants in the sewage under the action of the catalyst, the water treatment box 1 is also provided with an aeration ring pipe 6, the aeration ring pipe 6 is located below the catalytic layer suspension 5, and the catalyst filled in the catalytic layer suspension 5 is TiO2, MnO2, Fe2O3 or Fe3O4 One or more of the above, the ozone generating mechanism 2 is located on one side of the water treatment tank 1, and a negative pressure mechanism 3 is provided on the other side of the water treatment tank 1. The negative pressure mechanism 3 is used to extract ozone from the top of the water treatment tank 1 to form a negative pressure environment, and recycle the escaped ozone. The negative pressure mechanism 3 includes a vacuum pump 31, an air intake pipe 32, an exhaust pipe 33 and an annular pipe 34. The vacuum pump 31 is installed on the top surface of the water treatment tank 1. The vacuum pump 31 is connected to the inside of the water treatment tank 1 through the air intake pipe 32. The vacuum pump 31 is connected to the annular pipe 34 through the exhaust pipe 33. The annular pipe 34 is fixed to the outer wall of the water treatment tank 1 through a pipe hoop. A bypass pipe 35 is connected between the annular pipe 34 and the aeration ring pipe 6. A waterproof sealing ring is provided at the connection between the bypass pipe 35 and the water treatment tank 1.

[0025] The oxygen raw material is converted into gaseous ozone by the ozone generator 21, and the ozone is transported to the jet component 25 through the air duct 22. The jet component 25 can provide a negative pressure environment for gas-liquid mixing and supply solution. After the gas-liquid mixing is completed in the jet component 25, it is transported to the aeration ring pipe 6 through the water duct 23 to form an aeration jet in the sewage.

[0026] In this embodiment, an ozone generating mechanism 2 is used to provide a primary ozone supply to the sewage in the water treatment tank 1, and a negative pressure mechanism 3 is used to recover the tail gas escaping from the water treatment tank 1, which is mainly ozone, and provide a secondary ozone supply to the sewage for recycling and improving efficiency. In each aeration chamber of the water treatment tank 1, excess ozone introduced by aeration will escape from the liquid surface and gather at the top of the chamber. In order to improve the utilization rate of ozone, the tail gas treatment device originally arranged at the top of each aeration chamber of the water treatment tank 1 is changed to a negative pressure mechanism 3. The negative pressure mechanism 3 uses a high-speed centrifugal impeller to generate negative pressure, absorbs the ozone in the aeration chamber for reuse, absorbs it through the suction pipe 32, and discharges it into the annular pipe 34 for storage through the exhaust pipe 33, and then the annular pipe 34 supplies air to each aeration ring pipe 6 separately.

[0027] Embodiment 2: According to Figure 1 , Figure 6 , Figure 8 and Fig.10 As shown, the negative pressure mechanism 3 includes a vacuum pump 31, an air intake pipe 32, an air exhaust pipe 33 and an annular pipe 34. The vacuum pump 31 is installed on the top surface of the water treatment tank 1. The vacuum pump 31 is connected to the interior of the water treatment tank 1 through the air intake pipe 32. The vacuum pump 31 is connected to the annular pipe 34 through the air exhaust pipe 33. The annular pipe 34 is fixed to the outer wall of the water treatment tank 1 through a pipe clamp. A bypass pipe 35 is connected between the annular pipe 34 and the aeration ring pipe 6. A waterproof sealing ring is provided at the connection between the bypass pipe 35 and the water treatment tank 1. A pressure relief valve is provided inside the bypass pipe 35. When the ozone stored in the annular pipe 34 reaches a pressure threshold, the annular pipe 34 mixes the ozone into the aeration ring pipe 6 to form a mixed gas and liquid.

[0028] In this embodiment, metal oxides or composite metal oxides can be used as catalysts for the ozone oxidation of PPCPs, which can promote the decomposition of ozone and generate hydroxyl radicals, and can be reasonably allocated and applied according to the different performances of various metal catalysts. At the same time, a pressure relief valve is arranged inside the bypass pipe 35 to control the pressure value of the ozone stored in the annular pipe 34. After the tail gas is recovered for a period of time by the vacuum pump 31, when the pressure of the ozone stored in the annular pipe 34 reaches a certain value, it can be inflated into the aeration ring pipe 6, so that the bypass pipe 35 is connected, so as to prevent the gas-liquid mixture in the aeration ring pipe 6 from flowing back into the annular pipe 34, thereby avoiding damage to the vacuum pump 31. When the negative pressure of the jet assembly 25 is used for ozone adsorption, if the external power is insufficient, resulting in insufficient power to start the water pump 24, the flow rate will be too small to generate sufficient negative pressure to adsorb ozone. At this time, if the negative pressure of the throat 252 and the air duct 22 is too small, it will cause the sewage to flow back into the air duct 22, which will also affect the electrical safety of the ozone generator 21. For this reason, a check valve is set at the connection between the air duct 22 and the jet assembly 25 to avoid sewage diversion. At the same time, a cavity can be set at the middle end of the air duct 22 to buffer the returned sewage and prevent the sewage from flowing directly to the ozone generator 21 and burning the electrical appliances.

[0029] Embodiment 3: According to Figure 1 , Figure 3 and Figure 5 As shown, the interior of the water treatment box 1 is provided with an upper partition 15, a lower partition A16 and a lower partition B17. The upper partition 15 is located on one side of the catalyst layer suspension 5, and the lower partition A16 and the lower partition B17 are located on the other side of the catalyst layer suspension 5. The top end of the upper partition 15 is connected to the inner top wall of the water treatment box 1, and the bottom end of the lower partition A16 and the lower partition B17 is connected to the inner bottom wall of the water treatment box 1.

[0030] The top end of the lower partition A16 is bent to one side to form arc plate 1, and the top end of the lower partition B17 is bent to one side to form arc plate 2. A chamber is formed between the lower partition A16 and the lower partition B17, and a window 14 is connected to the outer wall of the chamber.

[0031] In this embodiment, since the sewage is input into the water treatment tank 1 from one end of the water inlet pipe 12 for treatment and discharged from one end of the water outlet pipe 13, in order to increase the time for the sewage to flow into the water treatment tank 1 so that the sewage can fully react, the upper baffle 15 constitutes the inner wall on the left side of the aeration chamber, and the lower baffle A16 and the lower baffle B17 constitute the inner wall on the right side of the aeration chamber, the top of the upper baffle 15 is sealed with the water treatment tank 1, and the bottom is in an open state, so that water flows in from the bottom of the upper baffle 15, and the bottom ends of the lower baffles A16 and the lower baffles B17 are sealed with the water treatment tank 1, and the top ends are in an open state, so that water flows in from the lower baffles A16 and the lower baffles B17. The sewage is discharged from the top of 17, and after being guided by the upper partition 15, the lower partition A16 and the lower partition B17, an S-shaped flow channel is formed in the water treatment tank 1. The S-shaped flow channel is used to increase the space and number of reactions between the sewage and ozone, thereby improving the efficiency of sewage treatment. In addition, an interlayer cavity is formed between the lower partition A16 and the lower partition B17, and the tops of the lower partition A16 and the lower partition B17 are designed to be bent to one side. The designed shape is used for guidance, so that the organic waste residue formed by the ozone catalytic oxidation is settled and guided by the lower partition A16 and the lower partition B17 to be collected in the interlayer cavity, so as to avoid interference with the subsequent sewage treatment process.

[0032] In order to clean up the residual organic waste in the water treatment tank 1 in time without affecting the normal water treatment work of the water treatment tank 1, a window 14 is connected to the outside of the interlayer cavity of the lower partition A16 and the lower partition B17, and the window 14 is in an open state. When the vacuum pump 31 is used to treat the ozone on the top of the water treatment tank 1, since the vacuum pump 31 creates a negative pressure environment on the top of the water treatment tank 1, the liquid surface at the window 14 is affected by the external atmospheric pressure. Analysis shows that there is a height difference between the liquid level at the window 14 and the liquid level inside the water treatment tank 1. The gravitational potential energy generated by the height difference makes the sewage inside the water treatment tank 1 tend to overflow from the window 14. At the same time, there is a pressure difference between the negative pressure inside the water treatment tank 1 and the atmospheric pressure at the window 14. The atmospheric pressure is used to offset the gravitational potential energy generated by the liquid level difference to avoid overflow. In addition, since the window 14 is located close to the bottom of the water treatment tank 1, it is easy to use a bucket or other tool to clean the organic waste residues between the lower partition A16 and the lower partition B17, thereby achieving the effect of timely treatment of the organic waste residues in the water treatment tank 1.

[0033] Embodiment 4: According to Figure 2 , Figure 6 , Figure 8 , Fig. 9 , Fig.11 , Fig.12 and Fig.13 As shown, the ozone generating mechanism 2 includes an ozone generator 21, an air guide pipe 22, a water guide pipe 23, a water pump 24 and a jet assembly 25. The air guide pipe 22 is located on a side wall of the water treatment tank 1, one end of the air guide pipe 22 is connected to the ozone generator 21, and the other end of the air guide pipe 22 is connected to the jet assembly 25. The water pump 24 is installed at a lower part of one side of the water treatment tank 1, and the water inlet of the water pump 24 is connected to the water treatment tank 1. The water pump 24 is used to draw water from the bottom of the water treatment tank 1. One end of the water guide pipe 23 is connected to the water outlet of the water pump 24, and the other end of the water guide pipe 23 is connected to the The jet assembly 25 is connected, the water pipe 23 is used to transmit water medium, the ozone generator 21 is used to prepare ozone, the air pipe 22 is used to supply ozone to the jet assembly 25, and the jet assembly 25 includes a contraction tube 251, a throat 252 and a diffusion tube 253 connected in sequence from bottom to top. The contraction tube 251 increases the water flow rate by reducing the tube diameter. The air pipe 22 is connected at the position of the throat 252, and the high-flow rate water flow formed by the throat 252 generates negative pressure, adsorbs the ozone in the air pipe 22 to form a mixed gas and liquid, and the mixed gas and liquid is discharged by the diffusion tube 253.

[0034] In this embodiment, the ozone generator 21 is connected to an air source or an oxygen source, and ozone is prepared by high-voltage electricity and chemical reaction. After the ozone is produced by the ozone generator 21, the gaseous ozone is transmitted to each jet component 25 by the air guide pipe 22. The jet component 25 is connected to the pipeline of the water guide pipe 23, wherein the middle section of the jet component 25 is contracted to form a throat 252, and the contraction tube 251 and the diffusion tube 253 are respectively connected to the water guide pipe 23. When the water pump 24 is activated, the negative pressure generated by the turbine blades is used to suck the water medium in the water treatment tank 1. The water medium flows at a relatively stable speed in the water guide pipe 23. When entering the contraction tube 251, due to the internal pressure of the pipeline, the water medium flows into the water guide pipe 23 at a relatively stable speed. The diameter of the throat 252 is reduced, resulting in an increase in the flow rate of the water medium. According to the Bernoulli principle, there is an inverse relationship between the velocity and pressure of the fluid during its flow. When the fluid passes through the contraction part of the throat 252, the flow rate of the fluid increases due to the reduction in the pipe diameter. At the same time, due to the conservation of total energy, the kinetic energy of the fluid increases, resulting in a decrease in its pressure. The negative pressure of the fluid at the throat 252 reaches a maximum value. This process allows the surrounding ozone to be sucked in and mixed with the mainstream, thereby achieving mixing or transportation. After being transported by the diffusion pipe 253, the mixed gas and liquid are transported again at a lower flow rate. Finally, the mixed gas and liquid merge into the aeration ring pipe 6 and are used for ozone aeration.

[0035] Embodiment 5: According to Figure 8 , Fig. 9 , Fig.10 , Fig.16 and Fig.17 As shown, the four inner side walls of the aeration ring pipe 6 are all equipped with jet nozzles 60, and spiral water flow is formed by spraying through the four jet nozzles 60, and the middle part of the catalyst layer suspension 5 is filled with fine catalyst, and the four side edge parts of the catalyst layer suspension 5 are filled with coarse catalyst. The top of the water treatment tank 1 is fixedly connected with an ozone destroyer 4, and the ozone escaping from the liquid surface of the water treatment tank 1 is adsorbed by the ozone destroyer 4, and the tail gas is purified by thermal decomposition and catalytic decomposition.

[0036] In this embodiment, when the aeration ring tube 6 not only collects the gas-liquid mixture of ozone and sewage, but also collects the secondary recovered ozone, a high-pressure environment is formed in the aeration ring tube 6, and the pressure is released outward through the jet nozzle 60 to fully mix with the sewage in the water treatment tank 1. In order to further optimize the efficiency of the catalyst and ozone reaction and meet the needs of deep sewage treatment, four jet nozzles 60 are respectively installed at eccentric positions. When the four-column water jet is released, the water column presents the following Fig.10 The state shown in FIG. 1 causes the water flow in the aeration chamber to generate a spiral vortex, thereby centrifuging different types of impurities in the sewage. After centrifugation, the impurities flow upward through the catalyst layer suspension 5. Fig.10As shown in the figure, the mixed gas and liquid of the four groups of lasing converge to form a vortex, and the heavy phase impurities are thrown to the outside of the spiral vortex (the inner wall of the container) by the centrifugal action, corresponding to the position where the coarse catalyst is filled in the catalyst layer suspension 5; the light phase impurities are gathered at the vortex axis position (the center of the container) under the action of the vortex, corresponding to the position where the fine catalyst is filled in the catalyst layer suspension 5. The heavy phase impurities pass through the coarse catalyst, and ozone is used to catalytically oxidize such organic impurities, and the light phase impurities pass through the fine catalyst, and ozone is used to catalytically oxidize such organic impurities. Since the catalyst is divided into zones in the catalyst layer suspension 5, ozone can be used for water treatment in a more targeted manner, thereby improving the utilization efficiency of ozone.

[0037] After being recycled for the second time by the vacuum pump 31 above each aeration chamber, the proportion of waste caused by ozone escaping from sewage is reduced. Finally, after the sewage has passed through multiple layers of ozone aeration and catalytic oxidation, the sewage is discharged from the outlet pipe 13 at the right end of the water treatment tank 1. Before the sewage is discharged, a small amount of ozone still escapes from the liquid surface. In order to meet the environmental protection requirements of production, it is necessary to treat the exhaust gas, especially ozone. An ozone destroyer 4 is set to treat ozone through electrothermal decomposition to meet the exhaust gas emission requirements.

[0038] Embodiment 6: According to Fig.14 and Fig.15 As shown, a second magnetic pole plate 11 is installed on one side of the water treatment box 1, and a first magnetic pole plate 10 is installed on the other side of the water treatment box 1. The first magnetic pole plate 10 and the second magnetic pole plate 11 provide an internal magnetic field in the water treatment box 1. Electrode sheets are installed inside the upper partition 15 and the lower partition B17. The upper partition 15 is connected to the positive electrode, and the lower partition B17 is connected to the negative electrode.

[0039] In this embodiment, ozone is introduced into the water treatment tank 1 for sewage treatment, and sequentially undergoes the processes of dissolved gas at the aeration ring pipe 6, catalytic reaction at the catalyst layer suspension 5, and catalytic oxidation above the catalyst layer suspension 5. After the organic impurities and the catalytic ozone pass through the catalyst layer suspension 5, the formed OH is used to generate - It reacts chemically with organic impurities, thereby deactivating them and achieving a sterilizing and purifying effect.

[0040] After the organic matter reacts, part of the reactants form solutes soluble in water, and part of them form solid impurities. The solid impurities are easy to block when discharged with sewage. In the flow channel of sewage, two sets of magnetic fields and electric fields with perpendicular directions are set respectively. The electric field is composed of an upper baffle 15 and a lower baffle B17, which are placed horizontally in the sewage flow. Ozone decomposes OH under the action of the catalyst. -Ions move horizontally under the action of electrodes. Therefore, when ozone oxidizes organic matter, the electric field can be used to effectively gather solid impurities near the lower partition B17 so as to recover the formed solid impurities. In addition, since a magnetic field is set in the front and rear directions of the water treatment box 1, the magnetic flux lines are vertically cut during the movement of ions, thereby obtaining a downward Lorentz force. This Lorentz force is used to offset the movement of water flow during continuous water injection, thereby preventing solid impurities from being washed away by the water flow, thereby avoiding the problem of solid impurities escaping from the upper opening of the lower partition B17. The impurities acted upon by the Lorentz force move downward along the right inner wall, and finally gather in the interlayer between the lower partition A16 and the lower partition B17 for subsequent removal.

[0041] The use method and working principle of the device: sewage is injected into the water treatment tank 1 from the water inlet pipe 12, flows along the channel formed by the upper partition 15 and the lower partition, and is discharged to the water outlet pipe 13 through an S-shaped flow; Ozone is prepared by the ozone generator 21 and then input into the air guide pipe 22, and the water pump 24 is activated to generate an annular passage in the water guide pipe 23. When the sewage flows through the jet assembly 25, the pipe diameter decreases and the flow rate of the fluid increases. At the same time, due to the conservation of total energy, the kinetic energy of the fluid increases, resulting in a decrease in its pressure. The negative pressure of the fluid at the throat 252 reaches the maximum value. This process causes the surrounding ozone to be sucked in and mixed with the sewage to form a high-pressure mixed gas that is gathered into the aeration ring pipe 6. At the same time, the excess ozone introduced into the aeration chamber escapes from the liquid surface and is absorbed by the vacuum pump 31, so that a negative pressure environment is generated at the top of the water treatment tank 1, and the ozone is transported to the aeration ring pipe 6 by the ring pipe 34 for secondary utilization; Finally, the ozone and sewage are introduced into the aeration ring pipe 6 and form a spiral water flow through the jet nozzle 60. The ozone is finally dissolved in the water and is treated by the catalyst of the catalyst layer suspension 5 to form hydroxyl radical ions, and the organic matter is catalytically oxidized to achieve the deactivation and sterilization effect. When organic oxide impurities are formed, the electric field in the left and right directions causes the impurities to gather to the right, and during the movement, they are affected by the Lorentz force generated by the magnetic field, and finally sink downward and gather in the interlayer between the lower partition A16 and the lower partition B17. The vacuum pump 31 generates negative pressure in the water treatment tank 1 to prevent sewage from leaking out, and handles impurities from the window 14 to prevent the organic oxide impurities from affecting the subsequent catalytic process.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency ozone catalytic oxidation device, comprising a water treatment box (1) and an ozone generating mechanism (2), wherein one end of the water treatment box (1) is provided with a water inlet pipe opening (12), and the other end of the water treatment box (1) is provided with a water outlet pipe opening (13), a catalytic layer suspension (5) is provided inside the water treatment box (1), and a catalyst is filled inside the catalytic layer suspension (5), and the ozone generating mechanism (2) introduces ozone into the water treatment box (1) to decompose organic pollutants in sewage under the action of the catalyst, characterized in that: An aeration ring pipe (6) is also provided inside the water treatment box (1), and the aeration ring pipe (6) is located below the catalyst layer suspension (5). The ozone generating mechanism (2) is located on one side of the water treatment box (1), and a negative pressure mechanism (3) is provided on the other side of the water treatment box (1). The negative pressure mechanism (3) is used to extract ozone from the top of the water treatment box (1) to form a negative pressure environment, and to recycle the escaped ozone; The negative pressure mechanism (3) comprises a vacuum pump (31), an air intake pipe (32), an air exhaust pipe (33) and an annular pipe (34); the vacuum pump (31) is mounted on the top surface of the water treatment tank (1); the vacuum pump (31) is connected to the interior of the water treatment tank (1) via the air intake pipe (32); the vacuum pump (31) is connected to the annular pipe (34) via the air exhaust pipe (33); the annular pipe (34) is fixed to the outer wall of the water treatment tank (1) via a pipe clamp; a bypass pipe (35) is connected between the annular pipe (34) and the aeration annular pipe (6); a waterproof sealing ring is provided at the connection between the bypass pipe (35) and the water treatment tank (1).

2. The high-efficiency ozone catalytic oxidation equipment according to claim 1 is characterized in that: An upper baffle (15), a lower baffle A (16) and a lower baffle B (17) are arranged inside the water treatment box (1); the upper baffle (15) is located on one side of the catalyst layer suspension (5); the lower baffle A (16) and the lower baffle B (17) are located on the other side of the catalyst layer suspension (5); the top end of the upper baffle (15) is connected to the inner top wall of the water treatment box (1); and the bottom ends of the lower baffle A (16) and the lower baffle B (17) are connected to the inner bottom wall of the water treatment box (1).

3. The high-efficiency ozone catalytic oxidation equipment according to claim 2 is characterized in that: The top end of the lower partition A (16) is bent toward one side to form an arc plate 1, and the top end of the lower partition B (17) is bent toward one side to form an arc plate 2. A chamber is formed between the lower partition A (16) and the lower partition B (17), and a window (14) is connected to the outer wall of the chamber.

4. The high-efficiency ozone catalytic oxidation equipment according to claim 1 is characterized in that: The ozone generating mechanism (2) comprises an ozone generator (21), an air pipe (22), a water pipe (23), a water pump (24) and a jet assembly (25); the water pump (24) is used to draw water from the bottom of the water treatment tank (1); the water pipe (23) is used to transmit the water medium; the ozone generator (21) is used to prepare ozone; and the air pipe (22) is used to supply and deliver the ozone to the jet assembly (25); The jet assembly (25) comprises a contraction tube (251), a throat tube (252) and a diffusion tube (253) which are connected in sequence from bottom to top. The contraction tube (251) increases the water flow rate by reducing the tube diameter. The air guide tube (22) is connected to the throat tube (252) and generates negative pressure by using the high-flow water flow formed by the throat tube (252). Ozone in the air guide tube (22) is adsorbed to form a mixed gas and liquid, and the mixed gas and liquid is discharged from the diffusion tube (253).

5. The high-efficiency ozone catalytic oxidation equipment according to claim 1 is characterized in that: The four inner side walls of the aeration ring pipe (6) are all installed with jet nozzles (60), and spiral water flows are formed by spraying through the four jet nozzles (60). The middle part of the catalyst layer suspension (5) is filled with fine catalyst, and the four side edge parts of the catalyst layer suspension (5) are filled with coarse catalyst.

6. The high-efficiency ozone catalytic oxidation equipment according to claim 1 is characterized in that: The top of the water treatment tank (1) is fixedly connected to an ozone destroyer (4), which absorbs ozone escaping from the liquid surface of the water treatment tank (1) and achieves tail gas purification through thermal decomposition and catalytic decomposition.

7. The high-efficiency ozone catalytic oxidation equipment according to claim 1 is characterized in that: A second magnetic pole plate (11) is installed on one side of the water treatment box (1), and a first magnetic pole plate (10) is installed on the other side of the water treatment box (1), and a magnetic field is provided inside the water treatment box (1) through the first magnetic pole plate (10) and the second magnetic pole plate (11).

8. The high-efficiency ozone catalytic oxidation equipment according to claim 2 is characterized in that: Electrode sheets are installed inside the upper separator (15) and the lower separator B (17); the upper separator (15) is connected to the positive electrode, and the lower separator B (17) is connected to the negative electrode.

9. The high-efficiency ozone catalytic oxidation equipment according to claim 1 is characterized in that: The catalyst filled in the catalyst layer suspension (5) is one or more of TiO2, MnO2, Fe2O3 or Fe3O4.

10. The high-efficiency ozone catalytic oxidation equipment according to claim 1 is characterized in that: A pressure relief valve is provided inside the bypass pipe (35). When the ozone stored in the annular pipe (34) reaches a pressure threshold, the annular pipe (34) mixes the ozone into the aeration ring pipe (6) to form a gas-liquid mixture.

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