Microchannel photoreactor

Abstract

The utility model belongs to photo -reaction technical field, and disclose a kind of microchannel photo -reactor, comprising: light microfluidic reaction device and electrically controlled luminous device, light microfluidic reaction device and electrically controlled luminous device are mutually connected to constitute a group of photochemical reaction module, the photochemical reaction module has multiple groups, and each group photochemical reaction module is connected and energized in parallel mode;The light microfluidic reaction device is internally provided with pressing plate, and the side of pressing plate is equipped with light-transmitting piece, the utility model uses, reactant is in compressed fluid form, accurately delivered to microchannel chip by liquid input assembly;Photochemical reaction occurs under the action of vertically irradiated LED light source. Multiple photochemical reaction modules adopt parallel connection mode, and are interconnected by water pipe, material guide pipe and electric wire, this design not only makes device structure compact, floor space is small, but also can handle more amount of reactant, it is convenient to quickly realize pilot scale-up.

Description

Technical Field

[0001] This invention belongs to the field of photoreaction technology, specifically relating to a microchannel photoreactor. Background Technology

[0002] A microchannel photoreactor is a device integrating microfluidics and photochemistry, enabling photochemical reactions through micrometer-scale channels. Its design aims to improve the efficiency, selectivity, and safety of photochemical reactions. Leveraging the synergistic effect of its microchannel structure and precise control system, it exhibits significant advantages in optimizing reaction performance. As a highly efficient, precise, and safe tool for photochemical synthesis, microchannel photoreactors have been widely applied in chemical synthesis, materials research and development, environmental protection, and energy development, providing strong support for technological innovation and development in these fields.

[0003] Existing microchannel photoreactors, due to their reliance on a single conduit for reactant transport, are prone to uneven transport, insufficient mixing, and unstable flow, leading to reduced reaction efficiency and uneven product distribution. Furthermore, photochemical reaction systems may suffer from uneven illumination and inaccurate temperature control, resulting in inconsistent reaction conditions that affect product quality and yield. Exposed external control interfaces pose risks of insufficient protection and unstable connections, potentially allowing impurities to enter or causing accidental detachment, thus disrupting normal equipment operation. These combined problems not only reduce the reactor's performance and reliability but also limit its effective application in photochemical synthesis. Utility Model Content

[0004] The purpose of this invention is to provide a microchannel photoreactor to solve the problems of low reaction efficiency, poor product quality, and unstable equipment operation in existing microchannel photoreactors mentioned in the background art, which are caused by uneven delivery, imprecise control of light and temperature, and insufficient interface protection.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a microchannel photoreactor, comprising: a photomicrofluidic reaction device and an electroluminescent device, wherein the photomicrofluidic reaction device and the electroluminescent device are interconnected to form a group of photochemical reaction modules, wherein there are multiple groups of photochemical reaction modules, and each group of photochemical reaction modules is connected in parallel and energized.

[0006] The photomicrofluidic reaction device has a pressure plate inside, and a light-transmitting element is mounted on one side of the pressure plate. A buffer gasket and a sealing ring are provided between the pressure plate and the light-transmitting element. A microchannel chip is installed on the side of the light-transmitting element away from the pressure plate. A temperature control component is provided on the side of the microchannel chip away from the light-transmitting element. A fixing screw is installed inside the photomicrofluidic reaction device. A liquid input component and an output component are respectively connected to both sides of the photomicrofluidic reaction device.

[0007] Through the above technical solution:

[0008] In use, the reactants are introduced as compressed fluids through a liquid input component, which delivers the fluids required for the reaction to the microchannel chip. Inside the microchannel chip, the fluids undergo a photochemical reaction under vertical illumination from an LED light source. The light source is provided by an electro-controlled light-emitting device, which incorporates a lamp panel containing an LED array to provide uniform and controllable illumination. After the reaction is complete, the products are exited from the photomicrofluidic reactor through an output component.

[0009] To ensure the stability and sealing of the apparatus, the pressure plate and buffer gasket work together to provide cushioning, effectively preventing the effects of vibration and impact. The sealing ring ensures the apparatus's tightness, preventing liquid leakage and guaranteeing the safety and reliability of the reaction process. The light-transmitting element allows light to pass through smoothly, providing the necessary illumination for the photochemical reaction. The microchannel chip contains a microchannel structure, providing an ideal reaction environment for fluid flow and chemical reactions. Fixing screws are used to secure and connect the various components, ensuring the overall stability of the apparatus.

[0010] The temperature control component connects to a water pipe, allowing condensate to flow into the photochemical reaction apparatus for cooling. This design effectively reduces heat generated during motor operation, lamp illumination, and the fluid chemical reaction, lowering the risk of the chemical reaction and ensuring it proceeds at a suitable temperature. The electrically controlled light-emitting device features a stainless steel casing with ventilation holes for effective heat dissipation. An external display screen and adjustment buttons allow users to easily monitor and adjust reaction parameters in real time.

[0011] The heat dissipation device is designed to effectively dissipate the photothermal heat generated by the light-emitting components and the reaction heat generated by the chemical reaction. This function greatly reduces the risk of chemical reactions, ensuring that the entire process takes place within a safe and controllable temperature range, avoiding side reactions or safety hazards caused by overheating.

[0012] The photochemical reaction module comprises multiple groups, each connected and powered in parallel via water pipes, feed pipes, and electrical wires. This design not only results in a compact structure and small footprint but also allows for the processing of larger quantities of reactants per reaction, facilitating rapid pilot-scale expansion. Furthermore, the wheels at the bottom of the frame enable easy movement of the entire device on the ground, enhancing its flexibility and operability.

[0013] The input component includes an input pipe, a first liquid guiding pipe, a flow guiding pipe, and a spiral plate. The input pipe is disposed on one side of the photomicrofluidic reaction device. The first liquid guiding pipe is connected to the output end of the input pipe. The flow guiding pipe is connected to the output end of the first liquid guiding pipe, and the output end of the flow guiding pipe is connected to the input end of the photomicrofluidic reaction device. The spiral plate is installed inside the flow guiding pipe.

[0014] Preferably, the output component includes a second liquid guiding pipe and an output pipe, wherein the second liquid guiding pipe is connected to the output end of the photomicrofluidic reaction device, and the output pipe is connected to the output end of the second liquid guiding pipe;

[0015] Both the first and second liquid guiding pipes adopt a tree-like branching structure, and their branches are connected to each photomicrofluidic reaction device.

[0016] Through the above technical solution:

[0017] In operation, liquid reactants are transported from an external storage tank or supply source to the subsequent liquid delivery pipeline system via an input pipe. The input pipe serves as the main delivery channel, ensuring a stable flow of reactants into the entire system from the source. Next, the first liquid delivery pipeline receives the reactants from the input pipe and further distributes them to each photomicrofluidic reactor. The first liquid delivery pipeline employs a tree-like branching structure, with multiple branches connected to the input end of each photomicrofluidic reactor. This design ensures that reactants are evenly distributed to each reaction unit, guaranteeing that each unit receives the same flow rate of reactants and providing consistent reaction conditions for subsequent chemical reactions. The reactants output from the first liquid delivery pipeline then enter the guide pipe. The main function of the guide pipe is to guide the reactants from the first liquid delivery pipeline to the inlet of the photomicrofluidic reactor. Inside the guide pipe, a spiral plate is installed. Through its unique spiral flow path design, the spiral plate significantly promotes uniform mixing of the reactants. This spiral flow not only facilitates thorough mixing between different reactant components but also effectively reduces turbulence and pressure fluctuations during fluid transport. The spiral plate design ensures highly consistent flow characteristics of the reactants entering the photomicrofluidic reactor. Specifically, the spiral-shaped flow path enables:

[0018] Promotes mixing: The spiral motion enhances the contact and mixing between different reactant components;

[0019] Stabilize flow rate: Reduce flow rate fluctuations to ensure that reactants enter the reaction apparatus at a constant rate;

[0020] Reduce pressure fluctuations: By using a uniform flow path, the impact of pressure changes on the reaction process is reduced.

[0021] After the reaction is completed in the photomicrofluidic reactor, the product needs to be efficiently extracted and transported to subsequent processing or collection units. A second liquid-conducting channel collects the reaction product from the output end of the photomicrofluidic reactor and transports it to the output channel. The second liquid-conducting channel also employs a tree-like branching structure, with multiple branches connected to the output end of each photomicrofluidic reactor. This design ensures efficient product collection and transport, preventing product accumulation or retention during transport. The collected product then enters the output channel, serving as the main channel for product output, which transports the product to subsequent processing units or storage containers. Through this design, the output component ensures that the product can be quickly and safely extracted from the reactor and processed or stored promptly.

[0022] The side wall of the electronically controlled light-emitting device is provided with an external control interface. Both sides of the inner wall of the external control interface are movably connected to baffles via torsion springs. The side walls of the baffles are fitted with soft pads. Both sides of the inner wall of the external control interface are provided with mounting grooves. The mounting grooves are adapted to the baffles. Clamping components are provided in both mounting grooves.

[0023] Preferably, the clamping assembly includes a groove, a clamping plate, and a spring. The groove is formed on the inner wall of the mounting groove, the clamping plate is disposed on one side of the groove, and the spring is connected between the groove and the clamping plate.

[0024] Through the above technical solution:

[0025] When not connected to external devices, the baffle is closed, covering the opening of the external control interface. This design effectively prevents dust, moisture, and other impurities from entering the interface, ensuring its cleanliness and normal operation.

[0026] When the user inserts the connector into the external control interface, the connector first contacts the baffle. Due to the insertion force of the connector, the baffle is forced to move inward into the pre-designed mounting slot. The size and shape of the mounting slot are adapted to the baffle to ensure smooth opening and provide stable guidance.

[0027] When the connector is fully inserted into the external control interface, the baffle will naturally rest against the side wall of the connector. At this time, the baffle and the external control interface are connected by a torsion spring, which ensures that the baffle always tends to close. The elastic force provided by the torsion spring causes the baffles on both sides to apply a certain clamping force to the connector, ensuring that the connector is not easily detached from the external control interface. This design not only improves the reliability of the connection, but also reduces the risk of disconnection due to accidental pulling.

[0028] During connector insertion, the baffle presses against the clamping plate. The clamping plate is positioned within a groove and connected to the groove via a spring. The spring provides a continuous elastic force to the clamping plate, causing it to tend to move closer to the connector. This force acts on the baffle, further enhancing its clamping force and ensuring a more secure connection during the connection process.

[0029] When the connector is pulled out, the clamping plate, under the action of the spring, will push the baffle, which will help the baffle close quickly under the action of the torsion spring.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] (1) This invention achieves a highly efficient, safe, and controllable photochemical reaction process by setting up components such as a photomicrofluidic reaction device and an electro-controlled light-emitting device. During use, the reactants are precisely delivered to the microchannel chip in the form of a compressed fluid via a liquid input component; a photochemical reaction occurs under the action of a vertically irradiated LED light source, provided by an electro-controlled light-emitting device with a built-in LED array, ensuring uniform and controllable illumination. After the reaction is complete, the products are efficiently exported through an output component. Multiple photochemical reaction modules are connected in parallel and interconnected via water pipes, feed pipes, and wires. This design not only makes the device compact and space-saving but also allows for the processing of larger quantities of reactants, facilitating rapid pilot-scale amplification.

[0032] (2) This invention achieves efficient transport of reactants and products by setting up components such as a first liquid guiding pipe, a flow guiding pipe, and a second liquid guiding pipe. In use, the first liquid guiding pipe adopts a tree-like branching structure to evenly distribute the reactants to the input ends of each photomicrofluidic reaction device. Subsequently, the reactants enter the flow guiding pipe, where the internal spiral plate constructs a spiral flow path to promote thorough mixing of the reactants, while effectively reducing turbulence and pressure fluctuations, ensuring that the reactants flow into the photomicrofluidic reaction device at a stable flow rate. After the reaction is completed, the second liquid guiding pipe, using its tree-like branching structure, collects the products from the output end of the photomicrofluidic reaction device and stably transports them to the output pipe. This design effectively avoids product accumulation or retention, ensuring the high efficiency of the transport process.

[0033] (3) This utility model achieves automatic protection and stable connection of the external control interface by setting components such as a baffle, a clamping plate, and a spring. When not in use, the baffle remains closed, effectively preventing impurities from entering the external control interface. When the connector is inserted, the baffle is pushed into the mounting groove by external force, providing a guiding path for the connector. After the connector is fully inserted, the torsion spring drives the baffle to reset and apply clamping force. At the same time, the clamping plate further enhances the clamping effect under the action of the spring, providing double protection for the stability of the connector connection and preventing accidental detachment. When the connector is pulled out, the baffle quickly resets and closes under the elastic force of the spring, promptly restoring protection to the external control interface and ensuring that the interface is always in a safe and clean state. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This is a schematic diagram of the flow guiding pipe of this utility model;

[0036] Figure 3 This is a schematic diagram of the external control interface of this utility model;

[0037] Figure 4 This is a schematic diagram of the structure of the photomicrofluidic reaction device of this utility model;

[0038] Figure 5 This is a schematic diagram of the structure of the electrically controlled light-emitting device of this utility model;

[0039] Figure 6 This is a schematic diagram of the structure of the baffle of this utility model;

[0040] In the diagram: 1. Photomicrofluidic reactor; 2. Electro-controlled light-emitting device; 3. Pressure plate; 4. Buffer gasket; 5. Sealing ring; 6. Light-transmitting element; 7. Microchannel chip; 8. Temperature control component; 9. Fixing screw; 10. Input pipe; 11. First liquid guiding pipe; 12. Flow guiding pipe; 13. Spiral plate; 14. Second liquid guiding pipe; 15. Output pipe; 16. External control interface; 17. Baffle; 18. Soft pad; 19. Mounting groove; 20. Groove; 21. Clamping plate; 22. Spring. Detailed Implementation

[0041] 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 protection scope of the present utility model.

[0042] Please see Figures 1-5 As shown, the present invention provides the following technical solution: a microchannel photoreactor, comprising: a photomicrofluidic reaction device 1 and an electro-controlled light-emitting device 2, wherein the photomicrofluidic reaction device 1 and the electro-controlled light-emitting device 2 are interconnected to form a set of photochemical reaction modules, and there are multiple sets of photochemical reaction modules, and each set of photochemical reaction modules is connected in parallel and energized.

[0043] The photomicrofluidic reaction device 1 has a pressure plate 3 inside. A light-transmitting element 6 is installed on one side of the pressure plate 3. A buffer gasket 4 and a sealing ring 5 are provided between the pressure plate 3 and the light-transmitting element 6. A microchannel chip 7 is installed on the side of the light-transmitting element 6 away from the pressure plate 3. A temperature control component 8 is provided on the side of the microchannel chip 7 away from the light-transmitting element 6. A fixing screw 9 is installed inside the photomicrofluidic reaction device 1. Liquid input components and output components are respectively connected to the two sides of the photomicrofluidic reaction device 1.

[0044] Through the above technical solution:

[0045] In use, the reactants are introduced as compressed fluids through a liquid input component, which delivers the fluids required for the reaction to the microchannel chip 7. Inside the microchannel chip 7, the fluids undergo a photochemical reaction under the influence of a vertically irradiated LED light source. The light source is provided by an electro-controlled light-emitting device 2, which incorporates a lamp panel containing an LED array, providing uniform and controllable illumination. After the reaction is complete, the products are exited from the photomicrofluidic reactor 1 through an output component.

[0046] To ensure the stability and sealing of the device, the pressure plate 3 and the buffer gasket 4 work together to provide cushioning, effectively preventing the effects of vibration and impact on the device. The sealing ring 5 ensures the device's airtightness, prevents liquid leakage, and guarantees the safety and reliability of the reaction process. The light-transmitting element 6 allows light to pass through smoothly, providing the necessary illumination conditions for the photochemical reaction. The microchannel chip 7 has an internal microchannel structure, providing an ideal reaction environment for fluid flow and chemical reactions. The fixing screws 9 are used to fix and connect the various components, ensuring the overall stability of the device.

[0047] The temperature control component 8 connects to a water pipe, allowing condensate to flow into the photochemical reaction device for cooling. This design effectively reduces heat generated during motor operation, lamp illumination, and the fluid chemical reaction, lowering the risk of the chemical reaction and ensuring it proceeds at a suitable temperature. The electrically controlled light-emitting device 2 uses a stainless steel casing with ventilation holes for effective heat dissipation. An external display screen and adjustment buttons are also provided for convenient real-time monitoring and adjustment of reaction parameters.

[0048] The heat dissipation device is designed to effectively dissipate the photothermal heat generated by the light-emitting components and the reaction heat generated by the chemical reaction. This function greatly reduces the risk of chemical reactions, ensuring that the entire process takes place within a safe and controllable temperature range, avoiding side reactions or safety hazards caused by overheating.

[0049] The photochemical reaction module consists of multiple groups, each connected in parallel and powered, and linked by water pipes, feed pipes, and electrical wires. This design not only results in a compact structure and small footprint but also allows for the processing of larger quantities of reactants per reaction, enabling rapid pilot-scale expansion. Furthermore, the wheels at the bottom of the frame facilitate easy movement of the entire device on the ground, enhancing its flexibility and operability.

[0050] Please see Figures 1-2 As shown, the input component includes an input pipe 10, a first liquid guiding pipe 11, a flow guiding pipe 12, and a spiral plate 13. The input pipe 10 is disposed on one side of the photomicrofluidic reaction device 1. The first liquid guiding pipe 11 is connected to the output end of the input pipe 10. The flow guiding pipe 12 is connected to the output end of the first liquid guiding pipe 11, and the output end of the flow guiding pipe 12 is connected to the input end of the photomicrofluidic reaction device 1. The spiral plate 13 is installed inside the flow guiding pipe 12.

[0051] Furthermore, the output component includes a second liquid guiding pipe 14 and an output pipe 15. The second liquid guiding pipe 14 is connected to the output end of the photomicrofluidic reaction device 1, and the output pipe 15 is connected to the output end of the second liquid guiding pipe 14.

[0052] Both the first liquid guiding pipe 11 and the second liquid guiding pipe 14 adopt a tree-like branch structure, and their branches are connected to each photomicrofluidic reaction device 1.

[0053] Through the above technical solution:

[0054] In operation, liquid reactants are transported from an external storage tank or supply source to the subsequent liquid delivery pipeline system via input pipe 10. Input pipe 10 serves as the main delivery channel, ensuring a stable flow of reactants from the source into the entire transmission system. Next, the first liquid delivery pipeline 11 receives the reactants from input pipe 10 and further distributes them to each photomicrofluidic reactor 1. The first liquid delivery pipeline 11 employs a tree-like branching structure, with multiple branches connected to the input end of each photomicrofluidic reactor 1. This design ensures that the reactants are evenly distributed to each reaction unit, guaranteeing that each unit receives the same flow rate of reactants and providing consistent reaction conditions for subsequent chemical reactions. The reactants output from the first liquid delivery pipeline 11 then enter the guide pipe 12. The main function of the guide pipe 12 is to guide the reactants from the first liquid delivery pipeline 11 to the inlet of the photomicrofluidic reactor 1. Inside the guide pipe 12, a spiral plate 13 is installed. The spiral plate 13, through its unique spiral flow path design, significantly promotes the uniform mixing of the reactants. This helical flow not only facilitates thorough mixing between different reactant components but also effectively reduces turbulence and pressure fluctuations during fluid transport. The design of the helical plate 13 ensures that the reactants entering the photomicrofluidic reactor 1 exhibit highly consistent flow characteristics. Specifically, the helical flow path enables:

[0055] Promotes mixing: The spiral motion enhances the contact and mixing between different reactant components;

[0056] Stabilize flow rate: Reduce flow rate fluctuations to ensure that reactants enter the reaction apparatus at a constant rate;

[0057] Reduce pressure fluctuations: By using a uniform flow path, the impact of pressure changes on the reaction process is reduced.

[0058] After the reaction is completed in the photomicrofluidic reactor 1, the product needs to be efficiently exported and transported to subsequent processing or collection units. A second liquid guide pipe 14 collects the reacted product from the output end of the photomicrofluidic reactor 1 and transports it to the output pipe 15. The second liquid guide pipe 14 also adopts a tree-like branching structure, with multiple branches connected to the output end of each photomicrofluidic reactor 1. This design ensures efficient product collection and transport, avoiding product accumulation or retention during transport. The collected product then enters the output pipe 15, serving as the main channel for product output, which transports the product to subsequent processing units or storage containers. Through this design, the output component ensures that the product can be quickly and safely exported from the reactor and processed or stored promptly.

[0059] Please see Figures 1-6As shown, the side wall of the electronically controlled light-emitting device 2 is provided with an external control interface 16. Both sides of the inner wall of the external control interface 16 are movably connected to baffles 17 by torsion springs. The side wall of the baffles 17 is equipped with soft pads 18. Both sides of the inner wall of the external control interface 16 are provided with mounting grooves 19. The mounting grooves 19 are adapted to the baffles 17. Both sides of the mounting grooves 19 are provided with clamping components.

[0060] Furthermore, the clamping assembly includes a groove 20, a clamping plate 21, and a spring 22. The groove 20 is formed on the inner wall of the mounting groove 19, the clamping plate 21 is disposed on one side of the groove 20, and the spring 22 is connected between the groove 20 and the clamping plate 21.

[0061] Through the above technical solution:

[0062] When not connected to external devices, the baffle 17 is in a closed state, covering the opening of the external control interface 16. This design effectively prevents dust, moisture, and other impurities from entering the interface, ensuring its cleanliness and normal operation.

[0063] When the user inserts the connector into the external control interface 16, the connector first contacts the baffle 17. Due to the insertion force of the connector, the baffle 17 is forced to move inward into the pre-designed mounting slot 19. The size and shape of the mounting slot 19 are adapted to the baffle 17 to ensure that the baffle 17 can open smoothly and provide a stable guiding effect.

[0064] When the connector is fully inserted into the external control interface 16, the baffle 17 will naturally rest against the side wall of the connector. At this time, the baffle 17 and the external control interface 16 are connected by a torsion spring, which ensures that the baffle 17 always tends to close. The elastic force provided by the torsion spring causes the baffles 17 on both sides to apply a certain clamping force to the connector, ensuring that the connector is not easily detached from the external control interface 16. This design not only improves the reliability of the connection, but also reduces the risk of disconnection due to accidental pulling.

[0065] During connector insertion, baffle 17 presses against clamping plate 21. Clamping plate 21 is positioned within groove 20 and connected to groove 20 via spring 22. Spring 22 provides continuous elastic force to clamping plate 21, causing it to tend to move closer to the connector. This force acts on baffle 17, further enhancing the clamping force of baffle 17 and ensuring a more secure connection during the connection process.

[0066] When the connector is pulled out, the clamping plate 21 will push the baffle 17 under the action of the spring 22, which will help the baffle 17 close quickly under the action of the torsion spring.

[0067] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microchannel photoreactor characterized by, include: The photomicrofluidic reaction device (1) and the electro-luminescent device (2) are interconnected to form a set of photochemical reaction modules. There are multiple sets of photochemical reaction modules, and each set of photochemical reaction modules is connected in parallel and energized. The photomicrofluidic reaction device (1) is equipped with a pressure plate (3). A light-transmitting element (6) is mounted on one side of the pressure plate (3). A buffer gasket (4) and a sealing ring (5) are provided between the pressure plate (3) and the light-transmitting element (6). A microchannel chip (7) is installed on the side of the light-transmitting element (6) away from the pressure plate (3). A temperature control component (8) is provided on the side of the microchannel chip (7) away from the light-transmitting element (6). A fixing screw (9) is installed inside the photomicrofluidic reaction device (1). A liquid input component and an output component are respectively connected to both sides of the photomicrofluidic reaction device (1).

2. A microchannel photoreactor according to claim 1, wherein: The input component includes an input pipe (10), a first liquid guiding pipe (11), a flow guiding pipe (12), and a spiral plate (13). The input pipe (10) is disposed on one side of the photomicrofluidic reaction device (1). The first liquid guiding pipe (11) is connected to the output end of the input pipe (10). The flow guiding pipe (12) is connected to the output end of the first liquid guiding pipe (11), and the output end of the flow guiding pipe (12) is connected to the input end of the photomicrofluidic reaction device (1). The spiral plate (13) is installed inside the flow guiding pipe (12).

3. A microchannel photoreactor according to claim 2, characterized in that: The output component includes a second liquid guiding pipe (14) and an output pipe (15). The second liquid guiding pipe (14) is connected to the output end of the photomicrofluidic reaction device (1), and the output pipe (15) is connected to the output end of the second liquid guiding pipe (14).

4. A microchannel photoreactor according to claim 3, wherein: The first liquid guiding pipe (11) and the second liquid guiding pipe (14) both adopt a tree-like branch structure, and their branches are connected to each photomicrofluidic reaction device (1).

5. The microchannel photoreactor of claim 1, wherein: The side wall of the electronically controlled light-emitting device (2) is provided with an external control interface (16). Both sides of the inner wall of the external control interface (16) are movably connected to baffles (17) by torsion springs. The side wall of the baffles (17) is provided with soft pads (18). Both sides of the inner wall of the external control interface (16) are provided with mounting grooves (19). The mounting grooves (19) are adapted to the baffles (17). Both sides of the mounting grooves (19) are provided with clamping components.

6. A microchannel photoreactor according to claim 5, characterized in that: The clamping assembly includes a groove (20), a clamping plate (21), and a spring (22). The groove (20) is formed on the inner wall of the mounting groove (19). The clamping plate (21) is disposed on one side of the groove (20), and the spring (22) is connected between the groove (20) and the clamping plate (21).

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