Catalytic ozone reactor

Abstract

The application relates to the technical field of water treatment devices, in particular to a catalytic ozone reactor which comprises a water inlet tank, a water outlet tank, a catalytic tube, a spiral rod, an air pump and an ozone generator, the outlet of the air pump is communicated with the central hole through a hose, the output port of the ozone generator is communicated with the inlet of the air pump through a pipeline and is used for supplying ozone gas to the inlet of the air pump, the organic wastewater is made to enter the spiral microchannel upwards from the water inlet cavity, at the same time, the air pump pumps the ozone gas provided by the ozone generator into the central hole, and then into the microchannel, the organic wastewater and the ozone gas are dissolved and catalytically generated hydroxyl radicals in the microchannel, and the hydroxyl radicals degrade the pollutants, since the organic wastewater and the ozone gas rotate and move upwards together, the organic wastewater and the ozone gas can be fully mixed in the rotation and can fully contact the catalyst layer of the catalytic tube, and the degradation efficiency of the pollutants in the organic wastewater is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of water treatment equipment technology, and in particular to a catalytic ozone reactor. Background Technology

[0002] Currently, there are still some problems with using ozone oxidation technology alone to treat wastewater. For example, ozone reacts with organic matter with high selectivity. At low doses and in short periods of time, ozone cannot completely mineralize pollutants, and the intermediate products generated during decomposition can prevent further oxidation by ozone.

[0003] Catalytic ozone oxidation is currently a relatively good method for utilizing ozone, catalytically converting ozone into hydroxyl radicals. During research on catalytic ozone oxidation, it was found that some catalysts can convert ozone into hydroxyl radicals, but the conversion efficiency is not high.

[0004] Existing ozone oxidation devices exhibit multiphase changes in ozone, specifically: 1) Dissolution: ozone dissolves into the aqueous phase; 2) Flow: bubbles rise and flow with the water; 3) Decomposition: ozone decomposes ineffectively in the gas and liquid phases, but effectively in the catalyst zone. Only ozone that decomposes effectively in the catalyst zone can generate hydroxyl radicals. Therefore, a suitable ozone oxidation device is crucial for improving ozone oxidation efficiency. It is necessary to ensure that ozone and the catalyst can contact within a suitable range and maintain continuous contact to effectively and fully utilize ozone.

[0005] In the field of wastewater treatment in the environmental protection industry, there is still no suitable solution for combining ozone reaction with microchannel reactors. This is because the microchannel water treatment process involving the gas phase involves mass transfer and reaction between the solid, liquid and gas phases. It is difficult for the gas phase and the liquid phase to mix fully in the reactor, and the solid catalyst can easily cause blockage of the microchannels, causing the reactor to lose its treatment function. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: in order to solve the problem of low degradation efficiency of ozone for pollutants in the prior art, a catalytic ozone reactor is provided.

[0007] The technical solution adopted by this invention to solve its technical problem is: a catalytic ozone reactor, comprising:

[0008] A water inlet tank has an inlet cavity inside, and an inlet on the water inlet tank that communicates with the inlet cavity;

[0009] A water outlet tank has an internal water outlet cavity, and a drain outlet communicating with the water outlet cavity is provided on the water outlet tank;

[0010] A catalytic tube has a catalyst layer on its inner circumferential wall. The lower end of the catalytic tube is fixedly connected to the top of the inlet tank, and the upper end of the catalytic tube is fixedly connected to the bottom of the outlet tank.

[0011] The twisted rod has at least three side surfaces in its circumferential direction, each of which is a helical surface extending in the axial direction of the twisted rod, and the twisted rod is elastically movable up and down in the catalytic tube, each helical surface forms a helical micro-channel between the inner wall of the catalytic tube, the lower end of the micro-channel is communicated with the water inlet cavity, and the upper end of the micro-channel is communicated with the water outlet cavity; the twisted rod has a central hole extending in the axial direction, and a plurality of radial holes are formed in the helical surface and communicated with the central hole;

[0012] The gas pump has an inlet and an outlet, and the outlet of the gas pump is communicated with the central hole through a hose;

[0013] And an ozone generator, the output port of the ozone generator is communicated with the inlet of the gas pump through a pipeline, for supplying ozone gas to the inlet of the gas pump.

[0014] Further, the twisted rod and the catalytic tube are both made of iron, and the outer surface of the twisted rod and the inner surface of the catalytic tube both have a catalyst layer which is an iron oxide layer.

[0015] Further, the outer peripheral wall of the twisted rod is attached to the inner wall of the catalytic tube.

[0016] Further, the cross section of the twisted rod is a square, a regular pentagon or a regular hexagon, and the cross section of the inner wall of the catalytic tube is a circle.

[0017] Further, it further comprises a clogging self-cleaning structure, which has a suspending member, an elastic element and a sleeve, the sleeve is fixedly connected with the water inlet tank, so that a suspending cavity is formed between the inner wall of the sleeve and the lower surface of the water inlet cavity, and the water inlet cavity is communicated with the suspending cavity through the micro-channels;

[0018] The upper end of the outer peripheral wall of the sleeve has an upper liquid outlet with a cross-sectional area of A, the lower end of the outer peripheral wall of the sleeve has a lower liquid outlet with a cross-sectional area of B, the suspending cavity is communicated with the water outlet cavity through the upper liquid outlet and the lower liquid outlet, the suspending member is arranged in the suspending cavity and below the upper liquid outlet, the buoyancy of the suspending member when it is completely immersed in the liquid is greater than the gravity of the suspending member, the sum of the cross-sectional areas of all the micro-channels in a single catalytic tube is C, B < C, C < A + B; the upper liquid outlet is above the lower liquid outlet, and the lower liquid outlet is above the drain port;

[0019] The top end of the twisted rod is fixedly connected or integrally formed with a connecting rod inserted into the suspending cavity, the upper end of the elastic element is fixedly connected with the connecting rod, the lower end of the elastic element is fixedly connected with the suspending member, the central hole extends upward to the upper end surface of the connecting rod, and the hose is fixedly connected with the upper end of the connecting rod so as to be communicated with the central hole.

[0020] Further, the upper surface of the sleeve is provided with a notch for the connecting rod to pass through, and the height of the notch is greater than the height of the upper liquid outlet.

[0021] Further, the upper surface of the water outlet tank is provided with a balance hole in communication with the water outlet cavity, and the balance hole is located above the upper liquid outlet.

[0022] Further, the elastic element is a spring, and the suspension member is annular, and the suspension member and the spring are both sleeved outside the connecting rod.

[0023] The beneficial effects of the present application are as follows: the present application utilizes organic wastewater to enter a spiral microchannel from a water inlet cavity, at the same time, an air pump pumps ozone gas provided by an ozone generator into a central hole, and then into the microchannel, and the organic wastewater and the ozone gas are dissolved and catalytically generated hydroxyl radicals in the microchannel, and the hydroxyl radicals further degrade pollutants, since the organic wastewater and the ozone gas rotate and move upward together, the organic wastewater and the ozone gas can be fully mixed in the rotation, and fully contact with a catalyst layer of a catalytic pipe, and the degradation efficiency of the pollutants in the organic wastewater is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application is further described below in combination with the drawings and examples.

[0025] Figure 1 is a three-dimensional schematic view of a catalytic ozone reactor;

[0026] Figure 2 is Figure 1 is a partial enlarged view of A in the catalytic ozone reactor;

[0027] Figure 3 is a front view of a spiral rod;

[0028] Figure 4 is Figure 3 is a sectional view of B-B in the catalytic ozone reactor;

[0029] Figure 5 is a three-dimensional view of one side of the spiral rod;

[0030] Figure 6 is a three-dimensional view of the other side of the spiral rod.

[0031] In the drawings: 1, water inlet tank, 11, water inlet cavity, 12, water inlet, 13, sewage outlet;

[0032] 2, water outlet tank, 21, water outlet cavity, 22, water outlet, 23, balance hole;

[0033] 3, catalytic pipe;

[0034] 4, spiral rod, 41, spiral surface, 42, central hole, 43, radial hole;

[0035] 5. micro channel;

[0036] 6. air pump;

[0037] 7. ozone generator;

[0038] 8. hose;

[0039] 9. self-cleaning structure, 91, floating member, 92, elastic element, 93, sleeve, 931, upper liquid outlet, 932, lower liquid outlet, 933, notch, 94, floating cavity, 95, connecting rod. DETAILED DESCRIPTION

[0040] The application will now be described in further detail with reference to the drawings. These drawings show only the essential features of the application and are not to scale. The drawings are schematic representations only of the basic structure of the application and therefore only show those features relevant to the present application. Directions and references (e.g. up, down, left, right, etc.) can be used only to aid in the description of features in the drawings. The following detailed description is therefore not to be taken in a restrictive sense, and the scope of the subject matter sought to be protected is defined only by the claims that follow this detailed description, and equivalents thereof.

[0041] Example 1

[0042] As shown in the drawings, a catalytic ozone reactor comprises a water inlet tank 1, a water outlet tank 2, a catalytic tube 3, a twisted rod 4, an air pump 6 and an ozone generator 7. Figures 1-6 The water inlet tank 1 has a water inlet cavity 11 inside, and a water inlet 12 is arranged on the water inlet tank 1 and communicates with the water inlet cavity 11.

[0043] The water outlet tank 2 has a water outlet cavity 21 inside, and a water outlet 22 is arranged on the water outlet tank 2 and communicates with the water outlet cavity 21.

[0044] The inner circumferential wall of the catalytic tube 3 has a catalyst layer, the lower end of the catalytic tube 3 is fixedly connected to the top end of the water inlet tank 1, and the upper end of the catalytic tube 3 is fixedly connected to the bottom end of the water outlet tank 2.

[0045] The twisted rod 4 has at least three side surfaces along its circumference, each of which is a helical surface 41 extending along the axial direction of the twisted rod 4. The twisted rod 4 is elastically movable up and down and is installed in the catalytic tube 3. Each helical surface 41 forms a helical micro channel 5 between the inner wall of the catalytic tube 3. The lower end of the micro channel 5 communicates with the water inlet cavity 11, and the upper end of the micro channel 5 communicates with the water outlet cavity 21. The twisted rod 4 has a central hole 42 extending along its axial direction. The central hole 42 can be a blind hole structure with an open upper end and a blocked lower end. A plurality of radial holes 43 are formed in the helical surface 41 and communicate with the central hole 42.

[0046]

[0047] ​The air pump 6 has an inlet and an outlet, and the outlet of the air pump 6 is connected to the center hole 42 via a hose 8 (e.g., a plastic hose);

[0048] The output port of ozone generator 7 is connected to the inlet of air pump 6 through a pipe, which is used to supply ozone gas to the inlet of air pump 6;

[0049] The bottom of the water inlet tank 1 can be provided with a drain port 13 that communicates with the water inlet chamber 11. A valve is provided on the drain port 13. When a lot of dirt accumulates at the bottom of the water inlet chamber 11, the valve can be opened to allow the accumulated dirt to be discharged from the drain port 13. After discharge, the valve is closed to seal the drain port 13.

[0050] This catalytic ozone reactor utilizes organic wastewater entering the spiral microchannel 5 from the inlet chamber 11. Simultaneously, the air pump 6 pumps ozone gas provided by the ozone generator 7 into the central hole 42, and then into the microchannel 5. The organic wastewater and ozone gas dissolve and catalyze within the microchannel 5 to generate hydroxyl radicals. These hydroxyl radicals then degrade pollutants. Because the organic wastewater and ozone gas rotate and rise together, they can be fully mixed during rotation and maintain full contact with the catalyst layer of the catalytic tube 3, significantly improving the degradation efficiency of pollutants in the organic wastewater. The ozone gas can also increase its contact rate with the catalyst layer of the catalytic tube 3 under the action of centrifugal force.

[0051] During the rotating flow of organic wastewater, the flow velocity in the outer ring is greater than that in the inner ring, creating a low pressure in the outer ring. This allows the ozone gas in the central hole 42 to be drawn in and dissolved, further improving the decomposition efficiency.

[0052] Since the spiral rod 4 is installed inside the catalytic tube 3 and can move up and down elastically, as the flow rate of organic wastewater entering the microchannel 5 changes, the spiral rod 4 automatically moves up and down, loosening the particles in the microchannel 5 or shearing the particles into smaller sizes, causing them to fall down out of the microchannel 5; the ozone gas is pumped into the microchannel 5 by the gas pump 6, which also has a clearing effect, making the microchannel 5 less prone to clogging.

[0053] In some examples, the hemp flower rod 4 and the catalytic tube 3 are both made of iron, and the surfaces of the hemp flower rod 4 and the catalytic tube 3 are provided with an iron oxide layer formed by calcining the hemp flower rod 4 and the catalytic tube 3 to 400-600°C and then placing them in a water vapor atmosphere at a temperature of 100-120°C for 10-50 min. In other words, the hemp flower rod 4 and the catalytic tube 3 are calcined to 400-600°C, placed in a water vapor atmosphere at 100-120°C for 10-50 min, and a dense iron oxide layer is formed on the surface, so that the surface of the catalytic tube 3 and the surface of the hemp flower rod 4 both have an iron oxide layer as a catalyst layer. For example, the iron oxide layer is a magnetite layer. The surfaces of the hemp flower rod 4 and the catalytic tube 3 can also be provided with a catalyst layer for catalyzing the dissolution of organic wastewater and ozone gas in the microchannel 5 to generate hydroxyl radicals by spraying, electroplating or other methods in the prior art.

[0054] In some examples, the cross section of the hemp flower rod 4 can be square, regular pentagonal or regular hexagonal, and the cross section of the inner wall of the catalytic tube 3 can be circular. The outer peripheral wall of the hemp flower rod 4 is attached to the inner wall of the catalytic tube 3, so that a plurality of spiral microchannels 5 are formed between the hemp flower rod 4 and the catalytic tube 3, and one spiral surface 41 of the hemp flower rod 4 corresponds to one microchannel 5. The more the number of sides of the cross section of the hemp flower rod 4, the more the number of spiral surfaces 41 of the side wall of the hemp flower rod 4 in the circumferential direction, and the more the number of microchannels 5 formed between the hemp flower rod 4 and the catalytic tube 3. However, the cross-sectional area of a single microchannel 5 will become smaller.

[0055] In some examples, the water inlet tank 1 further comprises a blockage self-cleaning structure 9 having a suspender 91, an elastic element 92 and a sleeve 93. The sleeve 93 is fixedly connected to the water inlet tank 1, so that a suspension cavity 94 is formed between the inner wall of the sleeve 93 and the lower surface of the water inlet cavity 11. The water inlet cavity 11 is in communication with the suspension cavity 94 through the microchannel 5.

[0056] The upper end of the outer peripheral wall of the sleeve 93 has an upper liquid outlet 931 with a cross-sectional area A, and the lower end of the outer peripheral wall of the sleeve 93 has a lower liquid outlet 932 with a cross-sectional area B. The suspension cavity 94 is in communication with the water outlet cavity 21 through the upper liquid outlet 931 and the lower liquid outlet 932. The suspender 91 is arranged in the suspension cavity 94 and located below the upper liquid outlet 931. When the suspender 91 is completely immersed in the liquid, the buoyancy acting on the suspender 91 is greater than the weight of the suspender 91. The sum of the cross-sectional areas of all microchannels 5 in a single catalytic tube 3 is C, B

[0057] The top end of the twisted rod 4 is fixedly connected to or integrally formed with a connecting rod 95 inserted into the suspension cavity 94. The upper end of the elastic element 92 is fixedly connected to the connecting rod 95, the lower end of the elastic element 92 is fixedly connected to the suspension component 91, the central hole 42 extends upward to the upper end face of the connecting rod 95, and the hose 8 is fixedly connected to the upper end of the connecting rod 95 so that the hose 8 communicates with the central hole 42.

[0058] When the microchannel 5 is blocked, the amount of organic wastewater entering the suspension chamber 94 in the microchannel 5 decreases or even stops. The water in the suspension chamber 94 is gradually discharged from the lower outlet 932, and the water level in the suspension chamber 94 drops. When it is completely blocked, the organic wastewater in the suspension chamber 94 will drop to the position of the lower outlet 932.

[0059] Once the microchannel 5 becomes clogged, the water level in the suspension chamber 94 drops, and the volume of the suspended component 91 submerged in the organic wastewater decreases accordingly. The buoyancy of the suspended component 91 also decreases or even disappears. Without buoyancy as support, both the suspended component 91 and the spiral rod 4 will descend. When the suspended component 91 descends and hits the bottom of the outlet chamber 21, the presence of the elastic element 92 will cause the spiral rod 4 to vibrate. Combined with the displacement and vibration of the spiral rod 4, the particles blocking the microchannel 5 will loosen and fall downwards, thereby achieving self-cleaning of the blockage in the microchannel 5.

[0060] Multiple catalytic tubes 3 can be set, and each catalytic tube 3 can be equipped with a twisted rod 4, and each twisted rod 4 can be equipped with a blockage self-cleaning structure 9.

[0061] The twisted rod 4 is installed in the catalytic tube 3 with elastic up-and-down movement. Specifically, the twisted rod 4 can be inserted into the catalytic tube 3, and a spring is provided between the lower end of the twisted rod 4 and the bottom of the water inlet chamber 11. The spring is fixed to the bottom of the water inlet chamber 11 and is directly opposite the twisted rod 4. The spring elastically supports the twisted rod 4. As the flow rate of organic wastewater entering the microchannel 5 changes, the twisted rod 4 moves up and down elastically.

[0062] In some examples, the upper surface of the sleeve 93 has a notch 933 through which the connecting rod 95 passes. The height of the notch 933 is greater than the height of the upper outlet 931. The design of the notch 933 allows the connecting rod 95 to be manually held from the notch 933 when the blockage is severe, so that the connecting rod 95 can be moved up and down quickly over a long distance, which can better remove the blockage particles in the microchannel 5.

[0063] In some examples, the upper surface of the water outlet tank 2 is provided with a balance hole 23 that communicates with the water outlet chamber 21. The balance hole 23 is located above the upper liquid outlet 931, and the ozone gas discharged in the microchannel 5 can be discharged outward from the balance hole 23 of the water outlet chamber 21.

[0064] In some examples, the elastic element 92 is a spring, the suspender 91 is annular, and the suspender 91 and the spring are both sleeved outside the connecting rod 95; the suspender 91 and the spring are both sleeved outside the connecting rod 95, the suspender 91 is constrained by the connecting rod 95 to move up and down along the axial direction of the connecting rod 95, and the suspender 91 can be made of plastic and can also have a hollow structure inside to increase the buoyancy.

[0065] The working principle of the catalytic ozone reactor is as follows:

[0066] The organic wastewater enters the water inlet 12 into the water inlet cavity 11, and then flows upward into the microchannel 5 and spirally flows upward along the microchannel 5. At the same time, the air pump 6 pumps the ozone gas provided by the ozone generator 7 into the central hole 42, and then into the microchannel 5 from the central hole 42 through each radial hole 43. The organic wastewater and the ozone gas are dissolved and catalytically generated hydroxyl radicals in the microchannel 5, and the hydroxyl radicals further degrade the pollutants.

[0067] When the microchannel 5 is not blocked, the sum of the cross-sectional areas of all the microchannels 5 between the spiral rod 4 and the outer catalytic tube 3 is greater than the cross-sectional area of the lower liquid outlet 932, so the water level in the suspension cavity 94 gradually rises to the upper liquid outlet 931. The suspension cavity 94 discharges the organic wastewater to the water outlet cavity 21 through the upper liquid outlet 931 and the lower liquid outlet 932, and the organic wastewater gathered in the water outlet cavity 21 is discharged outward from the drain 22. Therefore, when the microchannel 5 is not blocked, the suspender 91 is completely immersed in the organic wastewater in the suspension cavity 94, and the suspender 91 is lifted a distance by the spring (elastic element 92) and the connecting rod 95 and the spiral rod 4 thereon under the action of the buoyancy of the suspender 91 itself. This is also conducive to the upward and downward movement of the connecting rod 95 with the change in the flow of the organic wastewater into the microchannel 5, so as to loosen or shear the particles in the microchannel 5 to make them fall out of the microchannel 5.

[0068] When the microchannel 5 is blocked, the water level in the suspension cavity 94 decreases, the volume of the suspender 91 immersed in the organic wastewater decreases, and the suspender 91 and the spiral rod 4 are lowered without the support of the buoyancy. When the suspender 91 is lowered to the bottom of the water outlet cavity 21, the spiral rod 4 will vibrate due to the existence of the elastic element 92. In combination with the displacement and vibration of the spiral rod 4, the particles blocked in the microchannel 5 will be loosened and fall downward, thereby realizing self-cleaning of the blockage of the microchannel 5.

[0069] The above-mentioned ideal embodiments according to the present application are for illustration, through the above-mentioned description, the relevant staff can fully change and modify in the range without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A catalytic ozone reactor, characterized in that: include: The water inlet tank (1) has an inlet cavity (11) inside, and the water inlet tank (1) is provided with an inlet (12) communicating with the inlet cavity (11); Water outlet tank (2) with a water outlet cavity (21) inside, and a drain outlet (22) communicating with the water outlet cavity (21) is provided on the water outlet tank (2); The catalyst tube (3) has a catalyst layer on its inner circumferential wall. The lower end of the catalyst tube (3) is fixedly connected to the top of the water inlet tank (1), and the upper end of the catalyst tube (3) is fixedly connected to the bottom of the water outlet tank (2). The twisted rod (4) has at least three sides along its circumference, and each side is a helical surface (41) extending along the axial direction of the twisted rod (4). The twisted rod (4) is installed in the catalytic tube (3) in a way that allows it to move up and down elastically. Each helical surface (41) forms a helical microchannel (5) with the inner wall of the catalytic tube (3). The lower end of the microchannel (5) is connected to the water inlet chamber (11), and the upper end of the microchannel (5) is connected to the water outlet chamber (21). The twisted rod (4) has a central hole (42) extending along its axial direction, and a plurality of radial holes (43) are opened on the helical surface (41) that are all connected to the central hole (42). An air pump (6) has an inlet and an outlet, the outlet of which is connected to a central hole (42) via a hose (8); And an ozone generator (7), the output port of which is connected to the inlet of the air pump (6) through a pipe, for supplying ozone gas to the inlet of the air pump (6); The catalyst layer is used to catalyze the reaction of organic wastewater and ozone gas in the microchannel (5) to generate hydroxyl radicals; The air pump (6) pumps the ozone gas provided by the ozone generator (7) into the central hole (42), and from the central hole (42) through each radial hole (43) into the microchannel (5); It also includes a self-cleaning structure (9) for clogging, having a suspension element (91), an elastic element (92) and a sleeve (93), wherein the sleeve (93) is fixedly connected to the water inlet tank (1), such that a suspension cavity (94) is formed between the inner wall of the sleeve (93) and the lower surface of the water inlet cavity (11), wherein the water inlet cavity (11) is connected to the suspension cavity (94) through a microchannel (5); The upper end of the outer peripheral wall of the sleeve (93) has an upper liquid outlet (931) with a cross-sectional area of ​​A, and the lower end of the outer peripheral wall of the sleeve (93) has a lower liquid outlet (932) with a cross-sectional area of ​​B. The suspension chamber (94) is connected to the water outlet chamber (21) through the upper liquid outlet (931) and the lower liquid outlet (932). The suspension element (91) is set in the suspension chamber (94) and is located below the upper liquid outlet (931). When the suspension element (91) is completely immersed in the liquid, the buoyancy it experiences is greater than the weight of the suspension element (91). The sum of the cross-sectional areas of all microchannels (5) in a single catalytic tube (3) is C, B < C, C < A + B. The upper liquid outlet (931) is located above the lower liquid outlet (932), and the lower liquid outlet (932) is located above the drain outlet (22). The top end of the twisted rod (4) is fixedly connected to or integrally formed with a connecting rod (95) inserted into the suspension cavity (94). The upper end of the elastic element (92) is fixedly connected to the connecting rod (95), and the lower end of the elastic element (92) is fixedly connected to the suspension component (91). The central hole (42) extends upward to the upper end face of the connecting rod (95). The flexible hose (8) is fixedly connected to the upper end of the connecting rod (95) so that the flexible hose (8) communicates with the central hole (42).

2. The catalytic ozone reactor according to claim 1, characterized in that: Both the twisted rod (4) and the catalytic tube (3) are made of iron. The outer surface of the twisted rod (4) and the inner surface of the catalytic tube (3) are both covered with a catalyst layer, which is an iron oxide layer.

3. The catalytic ozone reactor according to claim 1, characterized in that: The outer peripheral wall of the twisted rod (4) is attached to the inner wall of the catalytic tube (3).

4. The catalytic ozone reactor according to claim 1 or 3, characterized in that: The cross-section of the twisted rod (4) is square, regular pentagon or regular hexagon, and the cross-section of the inner wall of the catalytic tube (3) is circular.

5. The catalytic ozone reactor according to claim 1, characterized in that: The upper surface of the sleeve (93) has a notch (933) through which the connecting rod (95) passes, and the height of the notch (933) is greater than the height of the upper liquid outlet (931).

6. The catalytic ozone reactor according to claim 1, characterized in that: The upper surface of the water outlet tank (2) is provided with a balance hole (23) that communicates with the water outlet cavity (21), and the balance hole (23) is located above the upper liquid outlet (931).

7. The catalytic ozone reactor according to claim 1, characterized in that: The elastic element (92) is a spring, the suspension element (91) is annular, and both the suspension element (91) and the spring are sleeved on the outside of the connecting rod (95).

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