Catalytic ozonation equipment

Abstract

The utility model relates to the technical field of catalytic ozonation equipment, and provides catalytic ozonation equipment which comprises a reaction cylinder, the reaction cylinder is provided with a sewage inlet, a purified water outlet and a reaction cavity, and the sewage inlet and the purified water outlet are both communicated with the reaction cavity; the plurality of catalytic supporting rods are arranged on the inner wall of the reaction cylinder in a mutually crossed manner, are positioned in the reaction cavity, and are positioned between the sewage inlet and the purified water outlet. By means of the technical scheme, the problems that in the prior art, a catalyst support in catalytic ozonation equipment cannot adapt to equipment of different specifications, and installation steps are tedious are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and in particular to ozone catalytic oxidation equipment. Background Art

[0002] Ozone catalytic oxidation equipment combines the oxidizing ability of ozone with the surface enrichment and catalytic properties of the catalyst to treat sewage more effectively. In the actual treatment process, pollutants will remove organic matter through oxidation reactions in the adsorption state and oxidation reactions in the non-adsorption state. This technology has been widely used in recent years, especially in the treatment of municipal sewage and various industrial sewage.

[0003] When existing ozone catalytic oxidation equipment is used to disinfect water bodies, a bracket is required to support the catalyst and other structures. However, catalysts of different shapes and structures require different brackets. The cost of prefabricated brackets is high, and the installation steps are cumbersome, which is inconvenient for people to use. Utility Model Content

[0004] The utility model provides an ozone catalytic oxidation device, which solves the problem that the catalyst support in the ozone catalytic oxidation device in the related art cannot adapt to devices of different specifications and the installation steps are relatively complicated.

[0005] The technical solution of the utility model is as follows:

[0006] An ozone catalytic oxidation device, comprising:

[0007] A reaction cylinder, wherein the reaction cylinder has a sewage inlet, a clean water outlet and a reaction chamber, and the sewage inlet and the clean water outlet are both connected to the reaction chamber;

[0008] A plurality of catalytic support rods are cross-arranged on the inner wall of the reaction tube and located in the reaction chamber. The catalytic support rods are located between the sewage inlet and the clean water outlet.

[0009] As a further technical solution, the sewage inlet is located at the top of the reaction chamber, and the clean water outlet is located at the bottom of the reaction chamber.

[0010] As a further technical solution, the bottom of the reaction chamber is also provided with an ozone inlet, and further comprises:

[0011] An aeration main pipe, the aeration main pipe is arranged on the inner wall of the reaction cylinder and is connected to the ozone inlet;

[0012] A plurality of aeration branch pipes, wherein the plurality of aeration branch pipes are arranged at intervals on the inner wall of the reaction cylinder, and the plurality of aeration branch pipes are all connected to the aeration main pipe;

[0013] An aeration plate, wherein the aeration plate is disposed on the aeration branch pipe and is connected to the aeration branch pipe, and the aeration plate faces the bottom of the catalytic support rod.

[0014] As a further technical solution, the aeration branch pipe and the aeration main pipe are arranged to cross each other vertically.

[0015] As a further technical solution, the top of the reaction chamber also has an exhaust outlet, and the inner wall of the reaction cylinder also has a backwash air inlet and a backwash water outlet. The backwash air inlet and the backwash water outlet are both connected to the reaction chamber, and the backwash air inlet and the backwash water outlet are respectively located on both sides of the catalytic support rod.

[0016] As a further technical solution, it also includes:

[0017] The catalytic layer is arranged on the catalytic support rod, and the thickness of the catalytic layer is 0.8m.

[0018] As a further technical solution, it also includes:

[0019] A support bracket, the support bracket is arranged on the inner wall of the reaction tube and located at the top of the reaction chamber;

[0020] A water collecting member, which is arranged on the supporting bracket and located at the center of the reaction chamber, and is H-shaped;

[0021] A three-way connecting pipe, wherein the three-way connecting pipe is arranged on the sewage inlet;

[0022] Two pipelines, one end of the pipeline is connected to one end of the water collecting component, and the other end is connected to the three-way connecting pipe.

[0023] As a further technical solution, a plurality of the catalytic support rods are arranged perpendicularly and crosswise to each other on the inner wall of the reaction tube.

[0024] As a further technical solution, it also includes:

[0025] A plurality of connection limit blocks are provided, each of which has a channel, the channel is connected to the reaction chamber, two adjacent catalytic support rods vertically and cross-arranged each other both pass through the channel, both sides of the catalytic support rods have elastic blocks, the elastic blocks abut against the inner wall of the channel, and the maximum width of the catalytic support rod is greater than the channel width.

[0026] The working principle and beneficial effects of the utility model are:

[0027] In the utility model, the working principle is as follows: before the ozone catalytic oxidation equipment works, ozone is first introduced from the bottom, and the concentration and flow of ozone during the reaction are determined by an ozone concentration detector and a gas flow meter. This operation is to ensure that the concentration and flow of ozone can play the greatest treatment effect in the subsequent reaction process. Sewage enters the reaction cylinder from the top, and the sewage and ozone will pass through the catalyst and be converted into hydroxyl free radicals under the action of the catalyst. Subsequently, the effluent and unreacted ozone are discharged from the top of the reaction tower. The exhaust gas generated by the system is heated and catalytically decomposed by the exhaust gas destroyer and then discharged. This step completes the entire ozone catalytic oxidation process and also ensures that no secondary pollution will be generated.

[0028] Furthermore, in order to solve the problem that the catalyst bracket cannot adapt to equipment of different specifications and the installation steps are relatively cumbersome, the traditional prefabricated steel structure is directly connected to the inner wall of the reaction tube by threaded bolts, and is replaced by a catalyst support bracket composed of a number of catalytic support rods. It does not need to be prefabricated in advance, thereby reducing costs and avoiding cumbersome installation steps. It is only necessary to cross-arrange a number of catalytic support rods on the inner wall of the reaction tube. The connection form can also adopt a snap-on structure of a threaded bolt or a wedge scaffolding or other similar form to complete quick installation. At the same time, it is necessary to ensure that the catalytic support rod is located between the sewage inlet and the clean water outlet to ensure that the sewage and ozone can react stably through the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0030] Figure 1 This is a schematic diagram of the internal structure of an ozone catalytic oxidation device in the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of an ozone catalytic oxidation device in the utility model;

[0032] Figure 3 It is a cross-sectional view of the catalytic support rod in the utility model;

[0033] Figure 4 This is a cross-sectional view of the aeration main pipe in the utility model;

[0034] Figure 5 It is a schematic diagram of the catalyst layer in the utility model;

[0035] Figure 6 This is a cross-sectional view of the water receiving part in the utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the connection limit block in the utility model;

[0037] In the figure: 1. reaction cylinder, 101. sewage inlet, 102. clean water outlet, 103. reaction chamber, 104. ozone inlet, 105. tail gas outlet, 106. backwash air inlet, 107. backwash water outlet, 2. catalytic support rod, 3. aeration main pipe, 4. aeration branch pipe, 5. aeration plate, 6. catalytic layer, 7. support bracket, 8. water collecting part, 9. three-way connecting pipe, 10. pipeline, 11. connection limit block, 1101. channel, 1102. elastic block. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0039] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0040] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] Reference Figure 1 to Figure 7 , which is the first embodiment of the utility model, proposes an ozone catalytic oxidation device, comprising:

[0043] A reaction cylinder 1, wherein the reaction cylinder 1 has a sewage inlet 101, a clean water outlet 102 and a reaction chamber 103, wherein the sewage inlet 101 and the clean water outlet 102 are both connected to the reaction chamber 103;

[0044] A plurality of catalytic support rods 2 are cross-arranged on the inner wall of the reaction tube 1 and located in the reaction chamber 103 . The catalytic support rods 2 are located between the sewage inlet 101 and the clean water outlet 102 .

[0045] In this embodiment, the working principle is as follows: before the ozone catalytic oxidation equipment works, ozone is introduced from the bottom, and the concentration and flow of ozone during the reaction are determined by an ozone concentration detector and a gas flow meter. This operation is to ensure that the concentration and flow of ozone can play the greatest treatment effect in the subsequent reaction process. The sewage enters the reaction cylinder 1 from the top, and the sewage and ozone will pass through the catalyst and be converted into hydroxyl free radicals under the action of the catalyst. Subsequently, the effluent and unreacted ozone are discharged from the top of the reaction tower. The exhaust gas generated by the system is heated and catalytically decomposed by the exhaust gas destroyer and then discharged. This step completes the entire ozone catalytic oxidation process and also ensures that no secondary pollution will be generated.

[0046] Furthermore, in order to solve the problem that the catalyst support cannot adapt to equipment of different specifications and the installation steps are relatively cumbersome, instead of the traditional prefabricated steel structure being directly connected to the inner wall of the reaction tube 1 by threaded bolts, a catalyst support frame composed of a plurality of catalytic support rods 2 is used. It does not need to be prefabricated in advance, thereby reducing costs and avoiding cumbersome installation steps. It is only necessary to cross-arrange a plurality of catalytic support rods 2 on the inner wall of the reaction tube 1. The connection form can also adopt a snap-on structure of a threaded bolt or a wedge scaffolding or the like to complete quick installation. At the same time, it is necessary to ensure that the catalytic support rod 2 is located between the sewage inlet 101 and the clean water outlet 102, so that the sewage and ozone can react stably through the catalyst.

[0047] Furthermore, the sewage inlet 101 is located at the top of the reaction chamber 103 , and the clean water outlet 102 is located at the bottom of the reaction chamber 103 .

[0048] In this embodiment, the sewage inlet 101 for entering sewage needs to be set at the top of the reaction chamber 103, and the clean water outlet 102 is located at the bottom thereof to ensure that the reaction proceeds stably.

[0049] Furthermore, the bottom of the reaction chamber 103 also has an ozone inlet 104, and further includes:

[0050] An aeration main pipe 3, the aeration main pipe 3 is arranged on the inner wall of the reaction tube 1 and is connected to the ozone inlet 104;

[0051] A plurality of aeration branch pipes 4, wherein the plurality of aeration branch pipes 4 are arranged at intervals on the inner wall of the reaction tube 1, and the plurality of aeration branch pipes 4 are all connected to the aeration main pipe 3;

[0052] The aeration plate 5 is disposed on the aeration branch pipe 4 and is connected to the aeration branch pipe 4 . The aeration plate 5 faces the bottom of the catalytic support rod 2 .

[0053] In this embodiment, the ozone catalytic oxidation equipment adds an ozone inlet 104 at the bottom of the reaction chamber 103, and uniformly disperses the ozone throughout the reaction chamber 103 through a layered aeration system consisting of an aeration main pipe 3 and an aeration branch pipe 4. This design ensures that ozone is fully in contact with the wastewater to be treated, significantly improves the utilization rate of ozone, reduces the waste of ozone resources, and improves the overall treatment efficiency. At the same time, the aeration plate 5 is installed on the aeration branch pipe 4 and faces the bottom of the catalytic support rod 2, so that the dispersed ozone can directly act on the catalyst on the surface of the catalytic support rod 2 during the mixing process with the wastewater, thereby accelerating the catalytic oxidation reaction between ozone and organic pollutants in the wastewater. This directional aeration method is beneficial to enhancing the catalytic reaction rate, improving the degradation efficiency of organic pollutants, and reducing treatment energy consumption.

[0054] Among them, a number of aeration branches 4 are arranged at intervals on the inner wall of the reaction tube 1, connected to the aeration main pipe 3, forming a multi-point uniform gas supply pattern. This layout is conducive to forming a uniform gas-liquid mixing environment in the entire reaction chamber 103, avoiding excessive or low local ozone concentration, ensuring that the catalytic oxidation reaction is carried out stably and efficiently in various parts of the reaction chamber 103, and improving the overall wastewater treatment quality. Further, through a reasonable structural layout, the aeration components including the aeration main pipe 3, the aeration branch pipe 4 and the aeration plate 5 are independent of the catalytic support rod 2, and are easy to disassemble and maintain. At the same time, the decentralized aeration method reduces the wear degree of a single aeration point, extends the service life of the equipment, and reduces the operating cost.

[0055] Furthermore, the aeration branch pipe 4 and the aeration main pipe 3 are arranged to cross each other vertically.

[0056] In this embodiment, the aeration branch pipe 4 and the aeration main pipe 3 are mutually perpendicularly crossed to form a criss-cross aeration network. The vertically crossed airflow paths help to break the single-direction airflow movement pattern, promote the multi-dimensional and all-round diffusion of ozone gas in the reaction chamber 103, enhance the mixed contact between ozone and wastewater, and further improve the utilization rate of ozone; compared with the traditional parallel or inclined arrangement, the vertical cross setting can reduce the local resistance of the airflow during the transportation process, reduce energy loss, and improve the energy utilization efficiency of the entire aeration system. At the same time, this structure also helps to reduce the rupture caused by the collision of bubbles during the rising process, maintain a stable bubble size, and further optimize the gas-liquid mass transfer process.

[0057] Furthermore, the top of the reaction chamber 103 also has an exhaust outlet 105, and the inner wall of the reaction tube 1 also has a backwash air inlet 106 and a backwash water outlet 107, the backwash air inlet 106 and the backwash water outlet 107 are both connected to the reaction chamber 103, and the backwash air inlet 106 and the backwash water outlet 107 are respectively located on both sides of the catalytic support rod 2.

[0058] In this embodiment, the tail gas outlet 105 at the top can directly recover the unreacted ozone for secondary utilization; a backwash air inlet 106 and a backwash water outlet 107 are opened on the inner wall of the reaction tube 1, and the two are respectively located on both sides of the catalytic support rod 2. In order to ensure the cleaning effect, the high-pressure gas or clean water is introduced to efficiently clean the surface of the catalytic support rod 2 and the inner wall of the reaction chamber 103, effectively remove the accumulated dirt, sediment and deactivated catalyst, restore the catalyst activity, maintain the equipment processing efficiency, extend the service life of the equipment, and avoid the cleaning blind spot.

[0059] Furthermore, it also includes:

[0060] The catalytic layer 6 is arranged on the catalytic support rod 2, and the thickness of the catalytic layer 6 is 0.8m.

[0061] In this embodiment, the 0.8 m catalyst layer 6 ensures the normal progress of the catalytic reaction, is convenient for early production and processing, controls costs, and is installed on the catalyst support rod 2 .

[0062] Furthermore, it also includes:

[0063] A support bracket 7, wherein the support bracket 7 is arranged on the inner wall of the reaction tube 1 and located at the top of the reaction chamber 103;

[0064] A water collecting member 8, which is disposed on the support bracket 7 and located at the center of the reaction chamber 103, and is H-shaped;

[0065] A three-way connecting pipe 9, wherein the three-way connecting pipe 9 is arranged on the sewage inlet 101;

[0066] Two pipelines 10 , one end of the pipeline 10 is connected to one end of the water collecting component 8 , and the other end is connected to the three-way connecting pipe 9 .

[0067] In this embodiment, the support bracket 7 is mainly provided to provide stable support for structures such as the water collecting part 8; in order to achieve efficient water collection and reflux, the water collecting part 8 is provided in an H shape and is located at the center of the reaction chamber 103. The H-shaped design increases the water collecting area, can efficiently collect the droplets or mist formed during the reaction process, prevent water loss, and ensure that the droplets quickly flow back to the bottom of the reaction chamber 103 under the action of gravity, maintain the stability of the liquid level in the reaction chamber 103, and improve the contact efficiency between ozone and wastewater. At the same time, the three-way connecting pipe 9 is provided on the sewage inlet 101, and cooperates with the two pipelines 10 to realize flexible regulation of the wastewater entering the reaction chamber 103. According to actual treatment needs, by adjusting the connection state of the two pipelines 10 and the three-way connecting pipe 9, the single-way or multi-way input of wastewater can be realized, which can adapt to the wastewater treatment under different flow and pressure conditions, and improve the applicability and treatment efficiency of the equipment.

[0068] Furthermore, a plurality of the catalytic support rods 2 are arranged perpendicularly and crosswise to each other on the inner wall of the reaction tube 1 .

[0069] In this embodiment, similar to the arrangement of the aeration branch pipe 4 and the aeration main pipe 3, a plurality of catalytic support rods 2 are arranged perpendicularly and crosswise on the inner wall of the reaction tube 1 to form a multi-dimensional and omnidirectional support structure to ensure that the catalytic layer 6 is stably located therein for reaction.

[0070] Furthermore, it also includes:

[0071] A plurality of connection limit blocks 11 are provided, each of which has a channel 1101, wherein the channel 1101 is connected to the reaction chamber 103, and two adjacent catalytic support rods 2 which are perpendicularly arranged to cross each other both pass through the channel 1101, and both sides of the catalytic support rod 2 have elastic blocks 1102, wherein the elastic blocks 1102 abut against the inner wall of the channel 1101, and the maximum width of the catalytic support rod 2 is greater than the width of the channel 1101.

[0072] In this embodiment, in order to further quickly install the two catalytic support rods 2 that cross each other, a connecting limit block 11 is installed at the intersection of the two, and a channel 1101 is opened, so that each catalytic support rod 2 can pass through the channel 1101, and under the action of the elastic blocks 1102 on both sides, it has an interference fit with the channel 1101, and the elastic blocks 1102 are tightly pressed against the inner wall of the channel 1101. The above structure is implemented to facilitate the workers' early installation, and the catalytic support rod 2 can be directly controlled to pass through the channel 1101. The premise is that the maximum width of the catalytic support rod 2 is greater than the width of the channel 1101, and the connection form between the end of the catalytic support rod 2 and the inner wall of the reaction tube 1 is still a threaded connection.

[0073] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An ozone catalytic oxidation device, characterized in that: include: A reaction cylinder (1), the reaction cylinder (1) having a sewage inlet (101), a clean water outlet (102) and a reaction chamber (103), the sewage inlet (101) and the clean water outlet (102) both being connected to the reaction chamber (103); A plurality of catalytic support rods (2), wherein the plurality of catalytic support rods (2) are arranged crosswise on the inner wall of the reaction tube (1) and are located in the reaction chamber (103); the catalytic support rods (2) are located between the sewage inlet (101) and the clean water outlet (102).

2. An ozone catalytic oxidation device according to claim 1, characterized in that: The sewage inlet (101) is located at the top of the reaction chamber (103), and the clean water outlet (102) is located at the bottom of the reaction chamber (103).

3. The ozone catalytic oxidation equipment according to claim 1, characterized in that: The bottom of the reaction chamber (103) is also provided with an ozone inlet (104), and further comprises: an aeration main pipe (3), the aeration main pipe (3) being arranged on the inner wall of the reaction cylinder (1) and being in communication with the ozone inlet (104); A plurality of aeration branch pipes (4), wherein the plurality of aeration branch pipes (4) are arranged at intervals on the inner wall of the reaction cylinder (1), and the plurality of aeration branch pipes (4) are all connected to the aeration main pipe (3); An aeration plate (5), the aeration plate (5) being arranged on the aeration branch pipe (4) and being in communication with the aeration branch pipe (4), the aeration plate (5) facing the bottom of the catalytic support rod (2).

4. The ozone catalytic oxidation equipment according to claim 3, characterized in that: The aeration branch pipe (4) and the aeration main pipe (3) are arranged to cross each other vertically.

5. The ozone catalytic oxidation equipment according to claim 1, characterized in that: The top of the reaction chamber (103) is also provided with an exhaust outlet (105), and the inner wall of the reaction cylinder (1) is also provided with a backwash air inlet (106) and a backwash water outlet (107), the backwash air inlet (106) and the backwash water outlet (107) are both connected to the reaction chamber (103), and the backwash air inlet (106) and the backwash water outlet (107) are respectively located on both sides of the catalytic support rod (2).

6. The ozone catalytic oxidation equipment according to claim 1, characterized in that: Also includes: A catalytic layer (6), wherein the catalytic layer (6) is arranged on the catalytic support rod (2), and the thickness of the catalytic layer (6) is 0.8 μm.

7. The ozone catalytic oxidation equipment according to claim 1, characterized in that: Also includes: A support bracket (7), the support bracket (7) being arranged on the inner wall of the reaction cylinder (1) and located at the top of the reaction chamber (103); a water collecting member (8), the water collecting member (8) being arranged on the supporting bracket (7) and located at the center of the reaction chamber (103), the water collecting member (8) being H-shaped; A three-way connecting pipe (9), wherein the three-way connecting pipe (9) is arranged on the sewage inlet (101); Two pipelines (10), one end of the pipeline (10) is connected to one end of the water collecting component (8), and the other end is connected to the three-way connecting pipe (9).

8. The ozone catalytic oxidation equipment according to claim 1, characterized in that: A plurality of the catalytic support rods (2) are arranged perpendicularly and crosswise to each other on the inner wall of the reaction tube (1).

9. The ozone catalytic oxidation equipment according to claim 1, characterized in that: Also includes: A plurality of connection limit blocks (11), wherein the connection limit blocks (11) have a channel (1101), wherein the channel (1101) is connected to the reaction chamber (103), and wherein two adjacent catalytic support rods (2) arranged perpendicularly and crosswise to each other both pass through the channel (1101), and wherein both sides of the catalytic support rod (2) have elastic blocks (1102), wherein the elastic blocks (1102) abut against the inner wall of the channel (1101), and wherein the maximum width of the catalytic support rod (2) is greater than the width of the channel (1101).

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