Hydrogen peroxide countercurrent oxidation catalytic reaction tower with cyclone distributor

Abstract

The utility model provides a kind of hydrogen peroxide countercurrent oxidation catalytic reaction tower of cyclone distributor, comprising: tower body, the two sides of the lower end of the outer side of the tower body are respectively fixedly connected with inlet and liquid storage component, while the lower end of the inner cavity of the tower body is respectively fixedly connected with cyclone distributor and filler layer, and the upper end of the inner cavity of the tower body is fixedly connected with main shunt pipe, one end of main shunt pipe is communicated with liquid pump in liquid storage component by infusion tube, while main shunt pipe lower surface is symmetrically provided with main liquid injection hole, simultaneously main shunt pipe two sides are symmetrically connected with auxiliary shunt pipe, auxiliary shunt pipe lower end is symmetrically connected with secondary shunt pipe, and the surface of secondary shunt pipe is symmetrically connected with mounting seat, and mounting seat surface is fixedly connected with atomizing nozzle.The utility model is matched by main shunt pipe, auxiliary shunt pipe, secondary shunt pipe and atomizing nozzle, so that hydrogen peroxide can be sprayed in different areas inside tower body at the same time, so as to improve gas-liquid contact effect, improve hydrogen peroxide oxidation purification effect on waste gas.

Description

Technical Field

[0001] This utility model relates to the field of oxidation tower technology, specifically to a hydrogen peroxide countercurrent oxidation catalytic reaction tower with a swirl distributor. Background Technology

[0002] Hydrogen peroxide is an important chemical raw material, mainly used in medical, military, and industrial applications. It is a strong oxidant, but it is unstable and easily decomposes to produce oxygen, which aids combustion. Its aqueous solution is a colorless and transparent liquid with a faint, distinctive odor. In the field of industrial waste gas treatment, it is commonly used to degrade harmful gases containing volatile organic compounds (VOCs), benzene compounds, and sulfides (such as H2S). It decomposes pollutants through Fenton reaction or catalytic oxidation, reducing chemical oxygen demand (COD) and eliminating odors. However, the spray structure inside common oxidation towers is relatively simple. The hydrogen peroxide sprayed from the spray structure is usually sprayed uniformly on the same plane, resulting in insufficient gas-liquid contact and thus reducing the oxidation and purification effect of hydrogen peroxide on harmful substances in waste gas. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a hydrogen peroxide countercurrent oxidation catalytic reaction tower with a swirl distributor is provided to solve the problems mentioned in the background technology.

[0004] To achieve the above objectives, a hydrogen peroxide countercurrent oxidation catalytic reaction tower with a swirl distributor is provided, comprising: a tower body, with an air inlet and a liquid storage assembly fixedly connected to the lower sides of the outer side of the tower body, and a swirl distributor and a packing layer fixedly connected to the lower end of the inner cavity of the tower body, and a main distribution pipe fixedly connected to the upper end of the inner cavity of the tower body, one end of the main distribution pipe being connected to a liquid pump in the liquid storage assembly through a liquid delivery pipe, and main spray holes symmetrically opened on the lower surface of the main distribution pipe, while secondary distribution pipes are symmetrically connected to both sides of the main distribution pipe, and secondary distribution pipes are symmetrically connected to the lower ends of the secondary distribution pipes, and mounting bases are symmetrically connected to the surfaces of the secondary distribution pipes, with atomizing nozzles fixedly connected to the surfaces of the mounting bases.

[0005] Preferably, the packing layer is located above the cyclone distributor, and a dispersing net is arranged on the upper surface of the packing layer. The dispersing net has a circular structure, and the edge of the dispersing net is fixedly connected to the inner cavity of the tower body by a fixing frame, which has a circular structure.

[0006] Preferably, the main diversion pipe has a cylindrical structure, and multiple sets of main spray holes are opened at equal intervals along the circumference on the lower surface of the main diversion pipe. The multiple sets of main spray holes are combined together to form a fan-shaped distribution. At the same time, two sets of limiting rings are connected to the position of the inner cavity of the tower relative to the secondary diversion pipe. Both sets of limiting rings have a fan-shaped annular structure, and the end of the secondary diversion pipe away from the main diversion pipe abuts against the upper surface of the limiting ring.

[0007] Preferably, multiple groups of auxiliary shunt pipes are fixedly connected to both sides of the main shunt pipe at equal intervals along the axial direction. All the multiple groups of auxiliary shunt pipes are in a cylindrical structure. The main shunt pipe and the auxiliary shunt pipes together form a cross-shaped structure. At the same time, the inner cavities of the auxiliary shunt pipes are connected to the inner cavity of the main shunt pipe.

[0008] Preferably, multiple groups of fixing blocks are fixedly connected to the lower surface of the auxiliary shunt pipe at equal intervals along the axial direction. All the multiple groups of fixing blocks are in a square structure. The cross-section of the fixing block is in a U-shaped structure. The inner cavity of the fixing block is connected to the inner cavity of the auxiliary shunt pipe. At the same time, the edges of the lower surface of the fixing block are all in an arc structure.

[0009] Preferably, a secondary shunt pipe is fixedly connected to the lower surface of the fixing block through a through hole. The secondary shunt pipe is in a cylindrical structure. The auxiliary shunt pipe and the secondary shunt pipes together form an E-shaped structure. At the same time, one end of the auxiliary shunt pipe away from the main shunt pipe abuts against the inner side surface of the tower body.

[0010] Preferably, multiple groups of mounting seats are fixedly connected to the surface of the secondary shunt pipe at equal intervals along the axial direction. The inner cavity of the mounting seat is connected to the inner cavity of the secondary shunt pipe. The mounting surface of the mounting seat slopes downward obliquely, and the atomizing nozzle is fixedly connected to the mounting surface of the mounting seat.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the cooperation of the main shunt pipe, the auxiliary shunt pipes, the fixing blocks, the secondary shunt pipes, the mounting seats, the main liquid spraying holes and the atomizing nozzles, hydrogen peroxide can be sprayed synchronously and uniformly at different height positions inside the tower body, so as to assist in enhancing the gas-liquid contact effect and improving the oxidation and purification effect of hydrogen peroxide on harmful substances in the waste gas. The cooperation of the swirl distributor and the packing layer can assist in prolonging the gas-liquid contact time and further improving the oxidation and purification effect of hydrogen peroxide on the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 It is a partial side view schematic diagram of an embodiment of the present utility model.

[0014] Figure 3 It is a top view schematic diagram of an embodiment of the present utility model.

[0015] Figure 4 For an embodiment of the present utility model Figure 1 The enlarged schematic diagram at A.

[0016] In the diagram: 1. Tower body; 2. Air inlet; 3. Swirl distributor; 4. Packing layer; 5. Dispersion net; 6. Secondary distributor pipe; 7. Auxiliary distributor pipe; 8. Main distributor pipe; 9. Liquid storage assembly; 10. Main spray hole; 11. Mounting base; 12. Atomizing nozzle; 13. Limiting ring; 14. Fixing block. Detailed Implementation

[0017] Reference Figures 1 to 4 As shown, this utility model provides a hydrogen peroxide countercurrent oxidation catalytic reaction tower with a swirl distributor, comprising: a tower body 1, with an air inlet 2 and a liquid storage assembly 9 fixedly connected to the lower sides of the outer side of the tower body 1, and a swirl distributor 3 and a packing layer 4 fixedly connected to the lower end of the inner cavity of the tower body 1, and a main distribution pipe 8 fixedly connected to the upper end of the inner cavity of the tower body 1. One end of the main distribution pipe 8 is connected to a liquid pump in the liquid storage assembly 9 through a liquid delivery pipe, and main spray holes 10 are symmetrically opened on the lower surface of the main distribution pipe 8. At the same time, secondary distribution pipes 7 are symmetrically connected to both sides of the main distribution pipe 8, and secondary distribution pipes 6 are symmetrically connected to the lower end of the secondary distribution pipes 7. Mounting seats 11 are symmetrically connected to the surface of the secondary distribution pipes 6, and atomizing nozzles 12 are fixedly connected to the surface of the mounting seats 11.

[0018] In this embodiment, the air inlet 2 at the lower end of the tower body 1 is connected to the corresponding air delivery pipe, allowing the exhaust gas to flow into the inner cavity of the tower body 1. As the exhaust gas moves upward, it first passes through the swirl distributor 3, which rotates the airflow, thus initially separating some harmful substances in the exhaust gas. The exhaust gas then flows through the packing layer 4 towards the main distribution pipe 8. When the exhaust gas is injected into the tower body 1, the liquid pump switch in the liquid storage assembly 9 is activated. The liquid pump injects the hydrogen peroxide stored in the liquid storage assembly 9 into the main distribution pipe 8 through the delivery pipe. A portion of the hydrogen peroxide is sprayed directly through the main spray hole 10, while the remaining hydrogen peroxide flows into multiple connected secondary distribution pipes 7. The hydrogen peroxide in the secondary distribution pipes 7 then flows into the corresponding sub-distribution pipes 6, and so on. Hydrogen peroxide can be simultaneously sprayed in multiple streams at different heights inside the tower body 1 through the mounting base 11 and atomizing nozzle 12. This allows the atomized hydrogen peroxide to fill different heights inside the tower body 1, thereby improving the contact effect between the exhaust gas and the hydrogen peroxide, enhancing the oxidation and catalytic effect of hydrogen peroxide on harmful substances in the exhaust gas, and improving the purification effect of the exhaust gas. Furthermore, the hydrogen peroxide sprayed from the main spray hole 10 impacts the dispersion net 5, which further breaks down and disperses the hydrogen peroxide, allowing it to evenly penetrate into the packing layer 4, improving the gas-liquid contact effect when the exhaust gas flows through. At the same time, all structural components inside the hydrogen peroxide countercurrent oxidation catalytic reaction tower are made of materials with suitable properties, which helps to extend the service life of the hydrogen peroxide countercurrent oxidation catalytic reaction tower and reduce the probability of failure.

[0019] As a preferred embodiment, the packing layer 4 is located above the cyclone distributor 3, and a dispersion net 5 is arranged on the upper surface of the packing layer 4. The dispersion net is of a circular structure. Meanwhile, the edge of the dispersion net is fixedly connected to the inner cavity of the tower body 1 through a fixing frame, and the fixing frame is of an annular structure.

[0020] In this embodiment, as Figure 1 , the setting of the positions of the packing layer 4 and the cyclone distributor 3 can assist in extending the gas-liquid contact time, improving the gas-liquid contact effect, and enhancing the oxidation and purification effect of the oxidizing substances and hydrogen peroxide in the packing layer 4 on the harmful substances in the waste gas. The setting of the dispersion net 5 can assist in breaking the falling hydrogen peroxide, ensuring that the hydrogen peroxide can uniformly penetrate into the packing layer 4. Meanwhile, both the cyclone distributor 3 and the packing layer 4 can adopt common brand models on the market.

[0021] As a preferred embodiment, the main shunt pipe 8 is of a cylindrical structure. A plurality of main liquid spraying holes 10 are circumferentially and equidistantly opened on the lower surface of the main shunt pipe 8, and the plurality of main liquid spraying holes 10 are combined to form a fan-shaped distribution. Meanwhile, two limiting rings 13 are correspondingly connected to the position of the inner cavity of the tower body 1 relative to the auxiliary shunt pipe 7. Both of the two limiting rings 13 are of a fan-shaped annular structure, and the end of the auxiliary shunt pipe 7 far from the main shunt pipe 8 abuts against the upper surface of the limiting ring 13.

[0022] In this embodiment, as Figure 1 、 Figure 2 和 Figure 3 , the opening of the main liquid spraying holes 10 enables the hydrogen peroxide to be uniformly sprayed downward, so that the hydrogen peroxide can uniformly penetrate into the packing layer 4 through the dispersion net 5, assisting in improving the oxidation and purification effect of the packing layer 4 on the harmful substances in the waste gas. Meanwhile, the setting of the limiting rings 13 can assist in enhancing the stability of the connection between the main shunt pipe 8 and the auxiliary shunt pipe 7 and the inner side surface of the tower body 1.

[0023] As a preferred embodiment, a plurality of auxiliary shunt pipes 7 are fixedly connected to both sides of the main shunt pipe 8 along the axial direction in parallel and at equal intervals. All of the plurality of auxiliary shunt pipes 7 are of a cylindrical structure. The main shunt pipe 8 and the auxiliary shunt pipes 7 are combined to form a cross-shaped structure. Meanwhile, the inner cavity of the auxiliary shunt pipe 7 is communicated with the inner cavity of the main shunt pipe 8.

[0024] In this embodiment, as Figure 1 、 Figure 2 和 Figure 3 , through the cooperation of the main shunt pipe 8 and the auxiliary shunt pipes 7, the hydrogen peroxide can be uniformly distributed in the horizontal plane inside the tower body 1, ensuring the uniformity of the hydrogen peroxide when it is sprayed inside the tower body 1 and improving the gas-liquid contact effect.

[0025] In a preferred embodiment, multiple sets of fixing blocks 14 are fixedly connected parallel to each other at equal intervals along the axial direction on the lower surface of the secondary diversion pipe 7. All sets of fixing blocks 14 are square in structure, and the cross-section of the fixing blocks 14 is U-shaped. The inner cavity of the fixing blocks 14 is connected to the inner cavity of the secondary diversion pipe 7. At the same time, the edges of the lower surface of the fixing blocks 14 are all arc-shaped.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The structure of the fixing block 14 can enhance the stability of the fixed connection between the secondary diversion pipe 6 and the auxiliary diversion pipe 7, and reduce the probability of the secondary diversion pipe 6 shaking due to airflow or sprayed water mist.

[0027] In a preferred embodiment, the lower surface of the fixing block 14 is fixedly connected to the secondary diversion pipe 6 through a through hole. The secondary diversion pipe 6 has a cylindrical structure, and the auxiliary diversion pipe 7 and the secondary diversion pipe 6 are combined to form an E-shaped structure. At the same time, the end of the auxiliary diversion pipe 7 away from the main diversion pipe 8 abuts against the inner side of the tower body 1.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 3 The secondary diversion pipe 6 allows hydrogen peroxide to be sprayed out at different heights inside the tower body 1, increasing the actual coverage of the hydrogen peroxide spray and thus enhancing the oxidation and purification effect of hydrogen peroxide on harmful substances in the exhaust gas.

[0029] In a preferred embodiment, multiple sets of mounting seats 11 are fixedly connected to the surface of the secondary diversion pipe 6 at equal intervals along the axial direction. The inner cavity of the mounting seat 11 is connected to the inner cavity of the secondary diversion pipe 6, and the mounting surface of the mounting seat 11 is inclined downward. The atomizing nozzle 12 is fixedly connected to the mounting surface of the mounting seat 11.

[0030] In this embodiment, as Figure 2 and Figure 4 The bending design of the mounting base 11 allows the atomizing nozzle 12 to spray hydrogen peroxide liquid mist diagonally downwards. Since the hydrogen peroxide liquid mist flows in the opposite direction to the exhaust gas, it can further enhance the gas-liquid contact effect, thereby improving the oxidation and purification effect of hydrogen peroxide on harmful substances in the exhaust gas.

Claims

1. A hydrogen peroxide countercurrent oxidation catalytic reaction tower with a cyclone distributor, comprising: The tower body (1) is characterized in that: an air inlet (2) and a liquid storage component (9) are fixedly connected to the lower sides of the outer side of the tower body (1), and a swirl distributor (3) and a packing layer (4) are fixedly connected to the lower end of the inner cavity of the tower body (1), and a main branch pipe (8) is fixedly connected to the upper end of the inner cavity of the tower body (1). One end of the main branch pipe (8) is connected to the liquid pump in the liquid storage component (9) through a liquid delivery pipe. The main spray holes (10) are symmetrically opened on the lower surface of the main branch pipe (8). At the same time, the secondary branch pipes (7) are symmetrically connected to both sides of the main branch pipe (8). The lower end of the secondary branch pipe (7) is symmetrically connected to the secondary branch pipe (6), and the surface of the secondary branch pipe (6) is symmetrically connected to the mounting base (11). The surface of the mounting base (11) is fixedly connected to the atomizing nozzle (12).

2. The hydrogen peroxide countercurrent oxidation catalytic reaction tower with a swirl distributor according to claim 1, characterized in that, The packing layer (4) is located above the cyclone distributor (3), and a dispersing net (5) is laid on the upper surface of the packing layer (4). The dispersing net has a circular structure, and the edge of the dispersing net is fixedly connected to the inner cavity of the tower body (1) by a fixed frame, which has a circular structure.

3. The hydrogen peroxide countercurrent oxidation catalytic reaction tower with a cyclone distributor according to claim 1, characterized in that, The main diversion pipe (8) has a cylindrical structure. Multiple sets of main spray holes (10) are opened at equal intervals along the circumference on the lower surface of the main diversion pipe (8). The multiple sets of main spray holes (10) are combined together to form a fan-shaped distribution. At the same time, the position of the inner cavity of the tower body (1) relative to the secondary diversion pipe (7) is connected to two sets of limiting rings (13). Both sets of limiting rings (13) have a fan-shaped annular structure. The end of the secondary diversion pipe (7) away from the main diversion pipe (8) abuts against the upper surface of the limiting ring (13).

4. The hydrogen peroxide countercurrent oxidation catalytic reaction tower with a cyclone distributor according to claim 1, characterized in that, The main diverter (8) has multiple sets of secondary diverter pipes (7) fixedly connected at equal intervals along the axial direction on both sides. The multiple sets of secondary diverter pipes (7) are all cylindrical in shape. The main diverter (8) and the secondary diverter pipes (7) are combined to form a shaped structure. At the same time, the inner cavity of the secondary diverter pipe (7) is connected to the inner cavity of the main diverter pipe (8).

5. The hydrogen peroxide countercurrent oxidation catalytic reaction tower with a cyclone distributor according to claim 1, characterized in that, The lower surface of the sub-diverter (7) is fixedly connected with multiple sets of fixed blocks (14) at equal intervals along the axial direction. All sets of fixed blocks (14) are square in shape, and the cross-section of the fixed blocks (14) is U-shaped. The inner cavity of the fixed blocks (14) is connected to the inner cavity of the sub-diverter (7). At the same time, the edges of the lower surface of the fixed blocks (14) are all arc-shaped.

6. The hydrogen peroxide countercurrent oxidation catalytic reaction tower with a cyclone distributor according to claim 5, characterized in that, The lower surface of the fixed block (14) is fixedly connected to the secondary diversion pipe (6) through the through hole. The secondary diversion pipe (6) has a cylindrical structure, and the sub-diversion pipe (7) and the secondary diversion pipe (6) are combined to form an E-shaped structure. At the same time, the end of the sub-diversion pipe (7) away from the main diversion pipe (8) abuts against the inner side of the tower body (1).

7. The hydrogen peroxide countercurrent oxidation catalytic reaction tower with a cyclone distributor according to claim 1, characterized in that, Multiple sets of mounting seats (11) are fixedly connected to the surface of the secondary diversion pipe (6) at equal intervals along the axial direction. The inner cavity of the mounting seat (11) is connected to the inner cavity of the secondary diversion pipe (6), and the mounting surface of the mounting seat (11) is inclined downwards. The atomizing nozzle (12) is fixedly connected to the mounting surface of the mounting seat (11).

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