A continuous flow photochemical reactor

Abstract

The utility model discloses a kind of continuous flow photochemical reaction instruments, belong to photochemical reaction equipment technical field, including photochemical reaction instrument ontology, reaction chamber is provided in photochemical reaction instrument ontology middle part, the inner wall of the reaction chamber is provided with irradiation lamp pearl, the top of the reaction chamber is open structure and is movably inserted with reaction plug-in assembly, the reaction plug-in assembly includes plug-in cylinder, the top of the plug-in cylinder is separately provided with liquid inlet nozzle and liquid outlet nozzle, transparent tube is connected between the liquid inlet nozzle and liquid outlet nozzle and is wound on the plug-in cylinder;The liquid inlet nozzle is connected with peristaltic pump assembly by pipeline. The utility model with above-mentioned one kind of continuous flow photochemical reaction instrument can realize continuous reaction, improve photochemical reaction efficiency and stability, and have integrated design, be conducive to simplifying operation process, have higher reaction scene adaptability.

Description

Technical Field

[0001] This utility model relates to the field of photochemical reaction equipment technology, and in particular to a continuous flow photochemical reactor. Background Technology

[0002] Currently, traditional photochemical reaction equipment faces three major problems in both experimental and industrial applications, making it difficult to meet the demands for efficient and flexible reactions: (1) Limitations of processing mode: Most of them are batch reactions, and the reaction solution needs to be added to the reaction container at one time. It is impossible to achieve continuous liquid inlet and outlet, resulting in limited single processing volume. Moreover, the reaction conditions between batches are prone to fluctuation, which is not conducive to the continuous processing of a large number of samples.

[0003] (2) Insufficient reaction efficiency: The contact area between the reaction liquid and the light is limited, and there is a lack of optimization of the flow path of the reaction liquid. Some of the reaction liquid cannot be fully exposed to light, which can easily lead to uneven reaction and uncontrollable reaction time, affecting the purity and yield of the reaction products.

[0004] (3) Low equipment integration: The reaction unit and the liquid supply unit cannot achieve parameter linkage, which makes the operation cumbersome and increases the probability of experimental error.

[0005] (4) Poor scene adaptability: It is difficult to meet the requirements of "rapid reaction of a small number of samples" and "continuous reaction of a large number of samples" at the same time. Furthermore, the illumination conditions cannot be independently controlled when multiple devices are used together, and it is unable to cope with complex multi-step photochemical reaction scenarios. Summary of the Invention

[0006] The purpose of this invention is to provide a continuous flow photochemical reactor that can realize continuous reaction, improve the efficiency and stability of photochemical reaction, and has an integrated design that simplifies the operation process and has high adaptability to reaction scenarios.

[0007] To achieve the above objectives, this utility model provides a continuous flow photochemical reactor, including a photochemical reactor body, a reaction chamber in the middle of the photochemical reactor body, an irradiation lamp bead on the inner wall of the reaction chamber, an open structure at the top of the reaction chamber and a reaction plug-in assembly movably connected thereto, and a peristaltic pump assembly connected to the input end of the reaction plug-in assembly via a pipe.

[0008] Preferably, the photochemical reactor body is equipped with support legs on both the upper and lower sides, and the bottom of the reaction chamber is provided with several test tube ports.

[0009] Preferably, the front of the photochemical reactor body is provided with a first display screen and a first rotary encoder, and the back is provided with a photochemical reactor switch, a fuse, and a 220V power interface.

[0010] Preferably, the peristaltic pump assembly includes a peristaltic pump housing, inside which a stepper motor and a pump chamber are configured to be matched and fixedly connected. The front end of the pump chamber is connected to a pump head fixed to the front of the peristaltic pump housing, and the pump head has a reaction liquid input end and a reaction liquid output end. A flow direction control lever and a second display screen are installed on the top of the peristaltic pump housing, and a second rotary encoder is correspondingly provided on the second display screen. A peristaltic pump switch and a peristaltic pump power interface are installed on the back of the peristaltic pump housing.

[0011] Preferably, the photochemical reactor body is provided with a first power communication interface, and the peristaltic pump housing is provided with a second power communication interface. A wire is movably connected between the first power communication interface and the second power communication interface to establish a 485 communication connection.

[0012] Preferably, a threaded hole is provided on the side wall of the photochemical reactor body, and a snap-fit ​​slide rail is fixed at the threaded hole by screws. A snap-fit ​​block matching the snap-fit ​​slide rail is installed on the side wall of the peristaltic pump housing.

[0013] Preferably, the reaction plug assembly includes a plug column, the top of which is respectively provided with an inlet nozzle and an outlet nozzle, and a transparent tube is connected between the inlet nozzle and the outlet nozzle and wound around the plug column.

[0014] Preferably, a single communication interface is provided on the side wall of the photochemical reactor body.

[0015] Therefore, the beneficial effects of this utility model using the above-mentioned continuous flow photochemical reactor are as follows: (1) Continuous reaction can be achieved, improving processing efficiency: Through the cooperation of the peristaltic pump assembly and the reaction plug-in assembly, the limitations of batch reaction can be completely eliminated, and the reaction conditions are stable. The transparent tube can be replaced with different diameter specifications. Combined with the adjustable flow rate of the peristaltic pump from 0.1mL / min to 500mL / min, the residence time of the reaction solution in the light-illuminated area (10s-30min) can be precisely controlled to meet the time requirements of different reactions, and the reaction uniformity is improved by more than 40%.

[0016] (2) Optimized integrated design and simplified operation process: The photochemical reactor body and the peristaltic pump assembly support 485 communication connection. The parameters of both can be controlled synchronously through the first rotary encoder, eliminating the need to operate the two devices separately. The operation steps are reduced by 60%, and the first display screen can display the operating data of both devices in real time, significantly improving the visualization of parameters. It also reduces the number of external power interfaces and improves the ease of device mobility. The peristaltic pump assembly has a built-in flow direction control lever, which can directly switch the flow direction of the reaction liquid without adjusting the position of the external liquid supply equipment, thus improving the operational flexibility.

[0017] (3) Expanding scenario adaptability and enhancing practicality: A test tube insertion port is opened at the bottom of the reaction chamber. After the device is inverted, test tubes can be inserted to carry out batch reactions of small samples. It can realize flexible switching between "continuous reaction" and "batch reaction" to adapt to different sample volume requirements (0.5mL-10L). The side wall of the photochemical reactor is equipped with a single communication interface, which supports multiple devices to establish 485 communication in series. Each device can independently adjust the light intensity and frequency band, which can realize the continuous execution of multi-step photochemical reactions without the need to transfer reaction liquid, improve the operation efficiency of complex reactions, and adjacent devices can be spliced ​​together through a snap-fit ​​structure to save laboratory space.

[0018] (4) Enhance safety and stability: The back of the photochemical reactor is equipped with a safety device that can automatically cut off the power when the equipment is overcurrent or overvoltage, avoiding circuit damage or fire risk; the peristaltic pump is driven by a stepper motor, and the flow rate accuracy is controlled within ±2%, ensuring a stable supply of reaction liquid and further guaranteeing the reliability of the reaction results.

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a continuous flow photochemical reactor according to this utility model; Figure 2 This is a schematic diagram of the reaction chamber structure of an embodiment of a continuous flow photochemical reactor according to this utility model; Figure 3 This is a bottom view schematic diagram of an embodiment of a continuous flow photochemical reactor according to this utility model; Figure 4 This is a schematic diagram of the reaction plug-in assembly structure of an embodiment of a continuous flow photochemical reactor according to this utility model; Figure 5 This is a front view schematic diagram of an embodiment of a continuous flow photochemical reactor according to this utility model; Figure 6 This is a top view schematic diagram of an embodiment of a continuous flow photochemical reactor according to this utility model; Figure 7 This is a rear view schematic diagram of an embodiment of a continuous flow photochemical reactor according to this utility model; Figure 8 This is a schematic diagram of the peristaltic pump assembly structure of an embodiment of a continuous flow photochemical reactor according to this utility model.

[0021] Figure Labels 1. Photochemical reactor body; 11. Reaction chamber; 12. Irradiation lamp; 13. Test tube inlet; 14. First display screen; 15. First rotary encoder; 16. Photochemical reactor switch; 17. Fuse; 18. 220V power interface; 19. First power communication interface; 110. Single communication interface; 111. Support leg; 2. Peristaltic pump assembly; 21. Peristaltic pump housing; 22. Pump head; 221. Reaction liquid input end; 222. Reaction liquid output end; 23. Second display screen; 24. Flow direction control lever; 25. Second rotary encoder; 26. Peristaltic pump switch; 27. Second power communication interface; 28. Peristaltic pump power interface; 3. Reaction plug-in assembly; 31. Plug-in column; 32. Inlet nozzle; 33. Outlet nozzle; 34. Transparent tube; 4. Threaded hole; 5. Snap-fit ​​slide rail; 6. Snap-fit ​​block. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Example 1 like Figure 1 As shown, this utility model provides a continuous flow photochemical reactor, including a photochemical reactor body 1, which provides a site for photochemical reactions in the reaction liquid. Figure 2 As shown, a reaction chamber 11 is provided in the middle of the photochemical reactor body 1. Irradiation lamp beads 12 are provided on the inner wall of the reaction chamber 11 to provide irradiation light of different intensities and frequencies to the reaction liquid during the photochemical reaction process.

[0025] The top of the reaction chamber 11 is an open structure and a reaction insertion assembly 3 is movably inserted into it. The input end of the reaction insertion assembly 3 is connected to a peristaltic pump assembly 2 through a pipe. The reaction insertion assembly 3 allows the reaction liquid to flow evenly through the reaction chamber 11 and fully contact the irradiated light to react. The peristaltic pump assembly 2 provides the driving force for the flow of the reaction liquid. Since the reaction liquid undergoes a photochemical reaction with the light in the reaction chamber 11 while flowing in the reaction insertion assembly 3, the photochemical reactor of this embodiment can realize uninterrupted photochemical reaction of the reaction liquid, meet the needs of photochemical reaction of a large amount of reaction liquid, and has high efficiency.

[0026] like Figure 3 As shown, support legs 111 are installed on both the upper and lower sides of the photochemical reactor body 1 to support the photochemical reactor body 1. Several test tube insertion ports 13 are opened at the bottom of the reaction chamber 11. When a small amount of reaction solution needs to be photochemically reacted, simply invert the photochemical reactor body 1, insert the test tube containing the reaction solution into the test tube insertion port 13, and start the photochemical reactor body 1 to irradiate the reaction solution.

[0027] Among them, such as Figure 4 As shown, the reaction connector assembly 3 includes a connector column 31. The top of the connector column 31 is respectively provided with an inlet nozzle 32 and an outlet nozzle 33. The inlet nozzle 32 is connected to the liquid supply end of the peristaltic pump assembly 2. A transparent tube 34 wound around the connector column 31 connects the inlet nozzle 32 and the outlet nozzle 33, allowing the reaction liquid to flow in through the inlet nozzle 32, spirally pass through the transparent tube 34 below, and undergo a thorough photochemical reaction within the reaction chamber 11 before finally flowing out through the outlet nozzle 33. For different reaction liquids, transparent tubes 34 of varying thicknesses can be used, thereby achieving a certain degree of adjustment of the reaction time.

[0028] like Figure 5-8 As shown, the front of the photochemical reactor body 1 is equipped with a first display screen 14 and a first rotary encoder 15, which are used to display various information during the photochemical reaction process and control various parameters, respectively. The back is equipped with a photochemical reactor switch 16, a fuse 17, and a 220V power interface 18, which are used to control the working status of the photochemical reactor body 1 and to supply power to the photochemical reactor body 1.

[0029] In this embodiment, a threaded hole 4 is provided on the side wall of the photochemical reactor body 1, and a snap-fit ​​slide rail 5 is fixed at the threaded hole 4 by screws. A snap-fit ​​block 6 matching the snap-fit ​​slide rail 5 is installed on the side wall of the peristaltic pump housing 21. The snap-fit ​​block 6 and the snap-fit ​​slide rail 5 can be connected to the photochemical reactor body 1 and the peristaltic pump assembly 2 into a whole, which is convenient to handle.

[0030] The peristaltic pump assembly 2 includes a peristaltic pump housing 21. Inside the housing 21, a stepper motor and a pump chamber (not shown in the figure) are fixedly connected and matched. The rotation of the stepper motor drives the rotor inside the pump chamber to squeeze and pump the reaction liquid, achieving a flow rate output of 0.1 mL / min to 500 mL / min. A pump head 22 fixed to the front of the peristaltic pump housing 21 is connected to the front end of the pump chamber. The pump head 22 has a reaction liquid inlet 221 and a reaction liquid outlet 222. The reaction liquid inlet 221 is connected to an external liquid supply device through a pipe, and the reaction liquid outlet 222 is connected to the inlet nozzle 32 of the reaction connector assembly 3 through a pipe.

[0031] A second display screen 23 and a flow direction control lever 24 are installed on the top of the peristaltic pump housing 21. A second rotary encoder 25 is correspondingly installed on the second display screen 23. The second display screen 23 can display the real-time operating status of the peristaltic pump assembly 2. The operating status of the peristaltic pump assembly 2 can be adjusted via the second rotary encoder 25. The rotation direction of the stepper motor can be controlled via the flow direction control lever 24, thereby controlling the flow direction of the reaction liquid. This reduces the requirements for the reaction liquid supply position and improves ease of use. A peristaltic pump switch 26 and a peristaltic pump power interface 28 are installed on the back of the peristaltic pump housing 21. These are used to control the working status of the peristaltic pump assembly 2 and to supply power to the peristaltic pump assembly 2, enabling individual control of the peristaltic pump assembly 2.

[0032] like Figure 7 As shown, the photochemical reactor body 1 is equipped with a first power communication interface 19, and the peristaltic pump housing 21 is equipped with a second power communication interface 27. A wire is movably connected between the first power communication interface 19 and the second power communication interface 27 to establish a 485 communication connection. After the 485 communication connection is established between the photochemical reactor body 1 and the peristaltic pump assembly 2, the first display screen 14 of the photochemical reactor body 1 can also display the operating data of the peristaltic pump assembly 2 in real time. The operating status of the peristaltic pump assembly 2 can be controlled by the first rotary encoder 15, without the need for separate control of the peristaltic pump assembly 2. This makes the operation more convenient, allowing for separate control of the photochemical reactor body 1 and the peristaltic pump assembly 2, as well as individual adjustment, thus improving the flexibility and versatility in later use.

[0033] In addition, the photochemical reactor body 1 can also power the peristaltic pump assembly 2. Once the connection is established between the first power communication interface 19 and the second power communication interface 27, the peristaltic pump assembly 2 does not need to be connected to an external power source.

[0034] A single communication interface 110 is provided on the side wall of the photochemical reactor body 1. This interface 110 allows the photochemical reactor body 1 to establish a 485 communication connection with multiple other identical photochemical reactor bodies 1, simultaneously meeting the needs of reacting the reaction solution under various different light irradiations, making it suitable for complex reaction scenarios. Since the side wall of the photochemical reactor body 1 has threaded holes, locking slide rails 5 and locking blocks 6 can be installed between adjacent photochemical reactor bodies 1 as needed, enabling the splicing of adjacent photochemical reactor bodies 1.

[0035] Therefore, the present invention employs the aforementioned continuous flow photochemical reactor, which can realize continuous reaction, improve the efficiency and stability of photochemical reaction, and has an integrated design that simplifies the operation process and has high adaptability to reaction scenarios.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A continuous flow photochemical reactor, characterized in that: The device includes a photochemical reactor body, a reaction chamber in the middle of the photochemical reactor body, an irradiation lamp bead on the inner wall of the reaction chamber, an open structure at the top of the reaction chamber and a reaction plug-in assembly movably connected thereto, and a peristaltic pump assembly connected to the input end of the reaction plug-in assembly via a pipe.

2. The continuous flow photochemical reactor according to claim 1, characterized in that: The photochemical reactor body is equipped with support legs on both the upper and lower sides, and the bottom of the reaction chamber is provided with several test tube insertion ports.

3. The continuous flow photochemical reactor according to claim 1, characterized in that: The front of the photochemical reactor body is provided with a first display screen and a first rotary encoder, and the back is provided with a photochemical reactor switch, fuse, and 220V power interface.

4. The continuous flow photochemical reactor according to claim 1, characterized in that: The peristaltic pump assembly includes a peristaltic pump housing. Inside the peristaltic pump housing, a stepper motor and a pump chamber are configured to be matched and fixedly connected. The front end of the pump chamber is connected to a pump head fixed to the front of the peristaltic pump housing. The pump head has a reaction liquid input end and a reaction liquid output end. A flow direction control lever and a second display screen are installed on the top of the peristaltic pump housing. A second rotary encoder is correspondingly installed on the second display screen. A peristaltic pump switch and a peristaltic pump power interface are installed on the back of the peristaltic pump housing.

5. A continuous flow photochemical reactor according to claim 4, characterized in that: The photochemical reactor body is provided with a first power communication interface, and the peristaltic pump housing is provided with a second power communication interface. A wire is movably connected between the first power communication interface and the second power communication interface to establish a 485 communication connection.

6. A continuous flow photochemical reactor according to claim 4, characterized in that: The photochemical reactor body has a threaded hole on its side wall, and a snap-fit ​​slide rail is fixed to the threaded hole by screws. The peristaltic pump housing has a snap-fit ​​block that matches the snap-fit ​​slide rail on its side wall.

7. A continuous flow photochemical reactor according to claim 1, characterized in that: The reaction plug assembly includes a plug column, the top of which is respectively provided with an inlet nozzle and an outlet nozzle, and a transparent tube is connected between the inlet nozzle and the outlet nozzle and wound around the plug column.

8. A continuous flow photochemical reactor according to claim 1, characterized in that: A single communication interface is provided on the side wall of the photochemical reactor body.

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