A gas-liquid-solid three-phase foam photocatalytic reaction device

Abstract

The utility model belongs to the field of photocatalytic reaction device, concretely speaking is a kind of gas-liquid-solid three-phase foam photocatalytic reaction device, including box and plug, the inside of box is provided with temperature control module, the inside fixed mounting of box has bracket, the inside sliding sleeve of bracket is equipped with reaction tube, the surface fixed mounting of reaction tube has light source array, the plug is used in cooperation with reaction tube, the inside sliding sleeve of plug is equipped with aeration head;Aeration head carries out aeration to the material in the inside of reaction tube and forms microbubble, microbubble increases gas-liquid contact interface area, provides sufficient oxygen for photocatalytic reaction, promotes illumination effect using light source array, effectively promotes catalyst active site excitation efficiency by the full coverage of light source, can be compatible different types of amphiphilic photocatalytic material and effectively improve reaction efficiency for the oxidation reaction of a variety of raw materials, and structure modularization setting can be conveniently disassembled and cleaned.

Description

Technical Field

[0001] This utility model relates to the field of photocatalytic reaction devices, specifically a gas-liquid-solid three-phase foam photocatalytic reaction device. Background Technology

[0002] Photocatalytic reactors use photocatalysts to absorb light energy to excite electron-hole pairs, driving redox reactions and achieving functions such as environmental governance, energy conversion, and chemical synthesis. They promote sustainable development in the environmental protection, energy, and chemical industries in an efficient and environmentally friendly manner.

[0003] Existing photocatalytic reaction devices suffer from problems such as low mass transfer efficiency at the gas-liquid interface, poor foam stability, and uneven light distribution when processing gas-liquid mixed systems. These issues make it difficult to fully utilize the catalytic efficiency of amphiphilic photocatalytic materials. For example, traditional aeration devices often have large and unevenly distributed bubbles, which can easily lead to rapid foam rupture. Furthermore, the light source is mostly unilateral, resulting in limited light penetration depth and insufficient activation of catalyst active sites. Therefore, a gas-liquid-solid three-phase foam photocatalytic reaction device is proposed to address these problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, existing photocatalytic reaction devices suffer from problems such as low mass transfer efficiency at the gas-liquid interface, poor foam stability, and uneven light distribution when processing gas-liquid mixed systems, which makes it difficult to fully utilize the catalytic efficiency of amphiphilic photocatalytic materials. This invention proposes a gas-liquid-solid three-phase foam photocatalytic reaction device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a gas-liquid-solid three-phase foam photocatalytic reaction device, including a box and a stopper. The box is equipped with a temperature control module. A bracket is fixedly installed inside the box. A reaction tube is slidably sleeved inside the bracket. A light source array is fixedly installed on the surface of the reaction tube. The stopper is used in conjunction with the reaction tube. An aeration head is slidably sleeved inside the stopper. One end of the aeration head extends into the interior of the reaction tube and is slidably connected to the inner cavity of the reaction tube. A top cover is attached to the surface of the box. A gas flow meter and a gas washing bottle are fixedly installed on the surface of the top cover. The input end of the gas flow meter is fixedly connected to an inlet pipe and a return pipe. An adjustable switch is provided on the surface of the inlet pipe. The output end of the gas flow meter is fixedly connected to a gas supply pipe. One end of the gas supply pipe is fixedly connected to the input end of the aeration head. A vent pipe is slidably sleeved inside the stopper. One end of the vent pipe passes through the gas washing bottle and is slidably connected to the inner cavity of the gas washing bottle. One end of the return pipe passes through the gas washing bottle and is slidably connected to the inner cavity of the gas washing bottle.

[0006] Preferably, a positioning plate is fixedly installed on the surface of the reaction tube, the positioning plate abutting against the surface of the bracket, and a positioning sleeve is threaded into the inner cavity of the top cover, one end of the positioning sleeve abutting against the surface of the positioning plate.

[0007] Preferably, the surface of the plug is rotatably connected to a fixing sleeve, which is threaded onto the surface of the aeration head.

[0008] Preferably, a connecting block is fixedly installed on the side of the fixing sleeve opposite to the plug, the connecting block is slidably connected to the inside of the plug, and a support block is fixedly installed on the surface of the connecting block, the surface of the support block being slidably connected to the inner cavity of the plug.

[0009] Preferably, a connecting sleeve is rotatably fitted around the periphery of the plug, and the inner cavity of the connecting sleeve is threadedly connected to the surface of the reaction tube.

[0010] Preferably, a slider is fixedly installed in the inner cavity of the connecting sleeve, and a groove is formed on the surface of the plug, with the slider slidably connected inside the groove.

[0011] Preferably, a limiting block is fixedly installed on the surface of the slider, and the surface of the limiting block is slidably connected to the inner cavity of the groove.

[0012] The advantages of this utility model are: This invention features an aeration head that aerates the material inside the reaction tube, forming microbubbles. These microbubbles increase the gas-liquid interface area, providing ample oxygen for the photocatalytic reaction. A light source array enhances the illumination effect, and the full coverage of the light source effectively improves the activation efficiency of the catalyst's active sites. It is suitable for the oxidation reactions of various raw materials, compatible with different types of amphiphilic photocatalytic materials, and effectively improves reaction efficiency. Furthermore, its modular structure facilitates disassembly and cleaning. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the gas-liquid-solid three-phase foam photocatalytic reaction device of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the reaction tube structure of this utility model; Figure 4 This is a schematic diagram of the plug structure of this utility model.

[0015] In the diagram: 1. Box body; 101. Top cover; 102. Bracket; 103. Positioning sleeve; 104. Temperature control module; 2. Reaction tube; 21. Positioning plate; 22. Plug; 2201. Fixing sleeve; 2202. Connecting block; 2203. Support block; 2204. Connecting sleeve; 2205. Slider; 2206. Slide groove; 2207. Limiting block; 23. Light source array; 3. Aeration head; 4. Gas flow meter; 41. Inlet pipe; 4101. Adjustable switch; 42. Gas supply pipe; 5. Gas washing bottle; 51. Gas venting pipe; 52. Gas return pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail. This application discloses a gas-liquid-solid three-phase foam photocatalytic reaction device. (Refer to...) Figure 1 , Figure 2 and Figure 3A gas-liquid-solid three-phase foam photocatalytic reaction device includes a housing 1 and a stopper 22. A temperature control module 104 is installed inside the housing 1. A bracket 102 is fixedly installed inside the housing 1, and a reaction tube 2 is slidably mounted inside the bracket 102. A light source array 23 is fixedly mounted on the surface of the reaction tube 2. The stopper 22 is used in conjunction with the reaction tube 2, and an aeration head 3 is slidably mounted inside the stopper 22. One end of the aeration head 3 extends into the interior of the reaction tube 2 and is slidably connected to the inner cavity of the reaction tube 2. The surface of the housing 1 is fitted with... The device has a top cover 101, on the surface of which a gas flow meter 4 and a gas washing bottle 5 are fixedly mounted. The input end of the gas flow meter 4 is fixedly connected to an inlet pipe 41 and a return pipe 52. An adjustable switch 4101 is provided on the surface of the inlet pipe 41. The output end of the gas flow meter 4 is fixedly connected to an air supply pipe 42. One end of the air supply pipe 42 is fixedly connected to the input end of the aeration head 3. A vent pipe 51 is slidably fitted inside the plug 22. One end of the vent pipe 51 passes through the gas washing bottle 5 and is slidably connected to the inner cavity of the gas washing bottle 5. One end of the trachea 52 passes through the gas washing bottle 5 and is slidably connected to the inner cavity of the gas washing bottle 5; the surface of the reaction tube 2 is also fitted with a jacket, and a light source array 23 is arranged in a ring array between the jacket and the reaction tube 2. The light source array 23 consists of multiple ultraviolet LED light sources with a wavelength of 365nm and a total power of 15-20W, achieving full-range illumination. Furthermore, the reaction tube 2 is made of high-transmittance quartz glass with a volume of 500-1000mL, and the inner wall of the reaction tube 2 is also equipped with… The system includes a hydrophobic coating (fluorocarbon coating with a contact angle of 100-120°) and a mesh guide plate (polytetrafluoroethylene with a pore size of 2-3 mm) to stabilize the foam. The aeration head 3 is made of carbon alloy with a pore size of 50-100 μm. The gas flow meter 4 has a flow range of 0.5-1.0 L / min. The temperature control module 104 consists of a heater, sensor, controller, actuator, and auxiliary components; this is existing technology and will not be elaborated further. When photocatalytic reaction is required, the material is added to the reaction tube 2, and the reaction tube 2 is placed in the box. The reaction tube 2 is supported by the bracket 102. Then, the top cover 101 is connected to the box body 1, the aeration head 3 is connected to the stopper 22, and the stopper 22 is connected to the reaction tube 2. The stopper 22 is then connected to the reaction tube 2 so that the aeration head 3 extends into the interior of the reaction tube 2. Then, the air inlet pipe 41 is connected to the external air pump, the aeration head 3 is connected to the gas flow meter 4 through the air supply pipe 42, and the aeration head 3 is connected to the gas washing bottle through the air outlet pipe 51. 5. The gas washing bottle 5 is connected to the gas flow meter 4 through the return gas pipe 52. Oxygen is sent to the aeration head 3 through the inlet pipe 41, the gas flow meter 4, and the gas delivery pipe 42 by an external air pump. The aeration head 3 generates uniform microbubbles in the material. The light source array 23 illuminates the material. The microbubbles increase the gas-liquid contact interface area, providing sufficient reaction for the photocatalytic reaction. The hydrophobic coating and the mesh guide plate stabilize the bubble flow, delay the foam bursting, ensure the continuous progress of the three-phase reaction, and eliminate the need for an additional stirring structure. It also facilitates the recovery of the gas after the reaction.

[0018] Reference Figure 2 and Figure 3 A positioning plate 21 is fixedly installed on the surface of the reaction tube 2. The positioning plate 21 abuts against the surface of the bracket 102. A positioning sleeve 103 is threadedly fitted into the inner cavity of the top cover 101. One end of the positioning sleeve 103 abuts against the surface of the positioning plate 21. When the reaction tube 2 is inserted into the bracket 102, the positioning plate 21 abuts against the surface of the bracket 102. Then the positioning sleeve 103 is threadedly fitted into the top cover 101. Therefore, one end of the positioning sleeve 103 abuts against the positioning plate 21 to stabilize the positioning plate 21 between the bracket 102 and the positioning sleeve 103, thereby stabilizing the position of the reaction tube 2.

[0019] Reference Figure 3 and Figure 4 A fixing sleeve 2201 is rotatably connected to the surface of the plug 22, and the fixing sleeve 2201 is threaded onto the surface of the aeration head 3. A connecting block 2202 is fixedly installed on the side of the fixing sleeve 2201 opposite to the plug 22. The connecting block 2202 is slidably connected to the inside of the plug 22. A support block 2203 is fixedly installed on the surface of the connecting block 2202, and the surface of the support block 2203 is slidably connected to the inner cavity of the plug 22. When the aeration head 3 is connected to the plug 22, the aeration head 3 passes through the plug 22 and the fixing sleeve 2201 is rotated, so that the fixing sleeve 2201 is threadedly connected to the surface of the aeration head 3. The position of the connecting block 2202 is stabilized by the support block 2203 to prevent the connecting block 2202 from separating from the plug 22. The position of the fixing sleeve 2201 is stabilized by the connecting block 2202, so that the aeration head 3 is connected to the plug 22, and the aeration head 3 is installed inside the reaction tube 2 through the plug 22.

[0020] Reference Figure 2 , Figure 3 and Figure 4 A connecting sleeve 2204 is rotatably fitted around the periphery of the stopper 22, and the inner cavity of the connecting sleeve 2204 is threadedly connected to the surface of the reaction tube 2. A slider 2205 is fixedly installed inside the inner cavity of the connecting sleeve 2204, and a groove 2206 is formed on the surface of the stopper 22, with the slider 2205 slidably connected inside the groove 2206. A limiting block 2207 is fixedly installed on the surface of the slider 2205, and the surface of the limiting block 2207 is slidably connected to the inner cavity of the groove 2206. When the stopper 22 is connected to the reaction tube 2... Insert the aeration head 3 into the inside of the reaction tube 2, and insert the plug 22 into the reaction tube 2. Rotate the connecting sleeve 2204 so that the connecting sleeve 2204 is threadedly connected to the surface of the reaction tube 2. The position of the slider 2205 is stabilized by the limiting block 2207, and the position of the connecting sleeve 2204 is stabilized by the slider 2205 and the groove 2206. Thus, the plug 22 is fixed inside the reaction tube 2 by the connecting sleeve 2204, so that the plug 22 can seal the reaction tube 2 and stabilize the position of the aeration head 3.

[0021] Working principle: When a photocatalytic reaction is required, the material is added to the reaction tube 2, and water is added inside the box. Then, the reaction tube 2 is inserted into the bracket 102, so that the positioning plate 21 abuts against the bracket 102. Next, the top cover 101 is aligned with the box 1, and the positioning sleeve 103 is threaded onto the inside of the top cover 101, so that one end of the positioning sleeve 103 abuts against the surface of the positioning plate 21, thereby fixing the reaction tube 2 in the bracket 102. Then, the aeration head 3 is passed through the plug 22, and the fixing sleeve 2201 is rotated. The fixing sleeve 2201 is threadedly connected to the surface of the aeration head 3, and the position of the connecting block 2202 is stabilized by the support block 2203 to prevent the connecting block 2202 from separating from the plug 22. The position of the fixing sleeve 2201 is stabilized by the connecting block 2202, thereby aligning the aeration head 3 with the plug 22. Then, the aeration head 3 is inserted into the interior of the reaction tube 2, and the plug 22 is inserted into the reaction tube 2. The connecting sleeve 2204 is rotated to thread it onto the surface of the reaction tube 2, and the slider 2205 is stabilized by the limiting block 2207. The position of the connecting sleeve 2204 is stabilized by the slider 2205 and the groove 2206, thereby fixing the plug 22 inside the reaction tube 2 through the connecting sleeve 2204. This allows the plug 22 to seal the reaction tube 2 and stabilize the position of the aeration head 3. Then, the air inlet pipe 41 is connected to the external air pump, the aeration head 3 is connected to the gas flow meter 4 through the air supply pipe 42, and the aeration head 3 is connected to the gas washing bottle 5 through the air release pipe 51. The gas washing bottle 5 is connected to the gas flow meter 4 through the return pipe 52, and oxygen is supplied by the external air pump. Gas is fed into the aeration head 3 through the air inlet pipe 41, gas flow meter 4, and air delivery pipe 42. The aeration head 3 generates uniform microbubbles in the material. The light source array 23 provides illumination, and the water in the chamber 1 is heated by the temperature control module 104 to provide a water bath for the reaction tube 2. The microbubbles increase the gas-liquid contact interface area, providing sufficient reaction for the photocatalytic reaction. The hydrophobic coating and mesh guide plate stabilize the bubble flow, delay foam collapse, ensure the continuous progress of the three-phase reaction, and eliminate the need for an additional stirring structure. It also facilitates the recovery of the gas after the reaction.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A gas-liquid-solid three-phase foam photocatalytic reaction device, characterized in that: The enclosure includes a housing (1) and a plug (22). The housing (1) contains a temperature control module (104). A bracket (102) is fixedly installed inside the housing (1). A reaction tube (2) is slidably mounted inside the bracket (102). A light source array (23) is fixedly mounted on the surface of the reaction tube (2). The plug (22) is used in conjunction with the reaction tube (2). An aeration head (3) is slidably mounted inside the plug (22). One end of the aeration head (3) extends into the interior of the reaction tube (2) and is slidably connected to the inner cavity of the reaction tube (2). A top cover (101) is attached to the surface of the housing (1). A light source array (23) is fixedly mounted on the surface of the top cover (101). A gas flow meter (4) and a gas washing bottle (5) are provided. The input end of the gas flow meter (4) is fixedly connected to an inlet pipe (41) and a return pipe (52). An adjustable switch (4101) is provided on the surface of the inlet pipe (41). The output end of the gas flow meter (4) is fixedly connected to a gas supply pipe (42). One end of the gas supply pipe (42) is fixedly connected to the input end of the aeration head (3). A vent pipe (51) is slidably sleeved inside the plug (22). One end of the vent pipe (51) passes through the gas washing bottle (5) and is slidably connected to the inner cavity of the gas washing bottle (5). One end of the return pipe (52) passes through the gas washing bottle (5) and is slidably connected to the inner cavity of the gas washing bottle (5).

2. The gas-liquid-solid three-phase foam photocatalytic reaction device according to claim 1, characterized in that: A positioning plate (21) is fixedly installed on the surface of the reaction tube (2). The positioning plate (21) abuts against the surface of the bracket (102). A positioning sleeve (103) is threadedly fitted into the inner cavity of the top cover (101). One end of the positioning sleeve (103) abuts against the surface of the positioning plate (21).

3. The gas-liquid-solid three-phase foam photocatalytic reaction device according to claim 1, characterized in that: The surface of the plug (22) is rotatably connected to a fixing sleeve (2201), which is threaded onto the surface of the aeration head (3).

4. The gas-liquid-solid three-phase foam photocatalytic reaction device according to claim 3, characterized in that: A connecting block (2202) is fixedly installed on the side of the fixed sleeve (2201) opposite to the plug (22). The connecting block (2202) is slidably connected to the inside of the plug (22). A support block (2203) is fixedly installed on the surface of the connecting block (2202). The surface of the support block (2203) is slidably connected to the inner cavity of the plug (22).

5. The gas-liquid-solid three-phase foam photocatalytic reaction device according to claim 1, characterized in that: The plug (22) is rotatably fitted with a connecting sleeve (2204), and the inner cavity of the connecting sleeve (2204) is threadedly connected to the surface of the reaction tube (2).

6. The gas-liquid-solid three-phase foam photocatalytic reaction device according to claim 5, characterized in that: The inner cavity of the connecting sleeve (2204) is fixedly installed with a slider (2205), and the surface of the plug (22) is provided with a groove (2206), and the slider (2205) is slidably connected inside the groove (2206).

7. The gas-liquid-solid three-phase foam photocatalytic reaction device according to claim 6, characterized in that: A limiting block (2207) is fixedly installed on the surface of the slider (2205), and the surface of the limiting block (2207) is slidably connected to the inner cavity of the groove (2206).

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