Continuous flow photochemical reaction instrument

Abstract

The invention discloses a continuous flow photochemical reaction instrument, and belongs to the technical field of photochemical reaction equipment, the continuous flow photochemical reaction instrument comprises a photochemical reaction instrument body, the middle part of the photochemical reaction instrument body is provided with a reaction chamber, and the inner wall of the reaction chamber is provided with irradiation lamp beads; the top of the reaction chamber is of an opening structure and is movably inserted with a reaction insertion assembly, the reaction insertion assembly comprises an insertion column body, the top of the insertion column body is respectively provided with a liquid inlet nozzle and a liquid outlet nozzle, and a transparent tube wound on the insertion column body is connected between the liquid inlet nozzle and the liquid outlet nozzle; and the liquid inlet nozzle is connected with a peristaltic pump assembly through a pipeline. By adopting the continuous flow photochemical reaction instrument, continuous reaction can be realized, the photochemical reaction efficiency and stability can be improved, and the continuous flow photochemical reaction instrument has integrated design, is beneficial to simplifying the operation process and has higher reaction scene adaptability.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of photochemical reaction equipment, in particular to a continuous-flow photochemical reaction instrument. BACKGROUND

[0002] At present, in photochemical reaction experiments and industrial applications, the traditional photochemical reaction equipment has three core problems, which cannot meet the efficient and flexible reaction requirements: (1) Limited processing mode: mostly batch reaction, the reaction liquid needs to be added to the reaction container at one time, and continuous liquid feeding and discharging cannot be realized, resulting in limited single processing capacity and fluctuation of reaction conditions between batches, which is not conducive to continuous processing of a large number of samples.

[0003] (2) Insufficient reaction efficiency: the contact area between the reaction liquid and light is limited, and the flow path of the reaction liquid is not optimized, part of the reaction liquid cannot fully receive light, and the reaction is not uniform, the reaction time is uncontrollable, which affects the purity and yield of the reaction product.

[0004] (3) Low equipment integration: the reaction unit and the liquid supply unit cannot realize parameter linkage, the operation is complicated, and the experimental error probability is increased.

[0005] (4) Poor scene adaptability: it is difficult to meet the requirements of "small sample rapid reaction" and "large sample continuous reaction", and the light conditions cannot be independently controlled when multiple equipment is used, and the complex multi-step photochemical reaction scene cannot be coped with. SUMMARY

[0006] The purpose of the application is to provide a continuous-flow photochemical reaction instrument, which can realize continuous reaction, improve the photochemical reaction efficiency and stability, and has integrated design, which is beneficial to simplify the operation process and has high reaction scene adaptability.

[0007] In order to achieve the above purpose, the application provides a continuous-flow photochemical reaction instrument, which comprises a photochemical reaction instrument body, a reaction chamber is formed in the middle of the photochemical reaction instrument body, illumination lamp beads are arranged on the inner wall of the reaction chamber, the top of the reaction chamber is of an open structure and movably connected with a reaction plug-in assembly, and a peristaltic pump assembly is connected with the input end of the reaction plug-in assembly through a pipeline.

[0008] Preferably, supporting legs are arranged on the upper and lower sides of the photochemical reaction instrument body, and a plurality of test tube sockets are formed in the bottom of the reaction chamber.

[0009] Preferably, a first display screen and a first rotary encoder are arranged on the front surface of the photochemical reaction instrument body, and a photochemical reaction instrument switch, a safety device and a 220V power supply interface are arranged on the back surface of the photochemical reaction instrument body.

[0010] Preferably, the peristaltic pump assembly comprises a peristaltic pump outer shell, a stepping motor and a pump cavity are arranged inside the peristaltic pump outer shell and are fixedly connected with each other, a pump head is fixedly connected to the front of the peristaltic pump outer shell, and a reaction liquid input end and a reaction liquid output end are formed in the pump head; a flow direction control hand lever and a second display screen are mounted on the top of the peristaltic pump outer shell, and a second rotary encoder is correspondingly arranged on the second display screen; and a peristaltic pump switch and a peristaltic pump power supply interface are mounted on the back of the peristaltic pump outer shell.

[0011] Preferably, a first power supply communication interface is arranged on the photochemical reaction instrument body, a second power supply communication interface is arranged on the peristaltic pump outer shell, and a wire is movably inserted between the first power supply communication interface and the second power supply communication interface to establish a 485 communication connection.

[0012] Preferably, a threaded hole is formed in the side wall of the photochemical reaction instrument body, a clamping sliding rail is fixed at the threaded hole through a screw, and a clamping block matched with the clamping sliding rail is mounted on the side wall of the peristaltic pump outer shell.

[0013] Preferably, the reaction plug-in assembly comprises a plug-in column, liquid inlet nozzles and liquid outlet nozzles are arranged at the top of the plug-in column, and transparent tubes are connected between the liquid inlet nozzles and the liquid outlet nozzles and are wound around the plug-in column.

[0014] Preferably, a single communication interface is formed in the side wall of the photochemical reaction instrument body.

[0015] Therefore, the beneficial effects of the continuous flow photochemical reaction instrument are as follows: (1) Continuous reaction can be realized to improve processing efficiency: through 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 tubes can be replaced with different specifications, combined with the adjustable flow of the peristaltic pump (0.1 mL / min-500 mL / min), the residence time of the reaction liquid in the light area can be accurately controlled (10 s-30 min), the requirements of different reactions on time are met, and the uniformity of the reaction is improved by more than 40%.

[0016] (2) Optimize integrated design to simplify operation process: the photochemical reaction instrument body and the peristaltic pump assembly support 485 communication connection, the parameters of the two can be controlled synchronously through the first rotary encoder, two devices do not need to be operated respectively, the operation steps are reduced by 60%, the first display screen can display the running data of the two in real time, the visual degree of the parameters is significantly improved, the number of external power supply interfaces can be reduced, and the mobility of the equipment is improved. The peristaltic pump assembly is provided with a flow direction control hand lever, the flow direction of the reaction liquid can be directly switched, the position of the external liquid supply equipment does not need to be adjusted, and the operation flexibility is improved.

[0017] (3) Widening the scene adaptation, enhancing the practicability: the bottom of the reaction chamber is provided with a test tube insertion port, after the device is inverted, the test tube can be inserted to carry out batch reaction of a small amount of sample, the flexible switching of "continuous reaction" and "batch reaction" can be realized, and different sample amount requirements (0.5 mL-10 L) can be adapted. The side wall of the photochemical reaction instrument body is provided with a single communication interface, a plurality of devices can be connected in series to establish 485 communication, the light intensity and frequency of each device can be independently controlled, the continuous performance of multi-step photochemical reaction can be realized, the reaction liquid does not need to be transferred, the operation efficiency of complex reaction is improved, and adjacent devices can be spliced through the clamping structure, and the laboratory space is saved.

[0018] (4) Improving safety and stability: the back of the photochemical reaction instrument body is provided with a safety device, which can automatically cut off the power supply when the device appears overcurrent or overvoltage, so as to avoid the risk of circuit damage or fire; the peristaltic pump is driven by a stepping motor, and the flow accuracy is controlled within ±2%, so as to ensure the stability of the reaction liquid supply and further guarantee the reliability of the reaction result.

[0019] The technical solutions of the present application will be further described in detail below with the help of the drawings and examples. DRAWINGS

[0020] Figure 1 is a three-dimensional structure schematic diagram of an embodiment of a continuous flow photochemical reaction instrument of the present application; Figure 2 is a reaction chamber structure schematic diagram of an embodiment of a continuous flow photochemical reaction instrument of the present application; Figure 3 is a bottom view schematic diagram of an embodiment of a continuous flow photochemical reaction instrument of the present application; Figure 4 is a reaction plug-in assembly structure schematic diagram of an embodiment of a continuous flow photochemical reaction instrument of the present application; Figure 5 is a front view schematic diagram of an embodiment of a continuous flow photochemical reaction instrument of the present application; Figure 6 is a top view schematic diagram of an embodiment of a continuous flow photochemical reaction instrument of the present application; Figure 7 is a rear view schematic diagram of an embodiment of a continuous flow photochemical reaction instrument of the present application; Figure 8 is a peristaltic pump assembly structure schematic diagram of an embodiment of a continuous flow photochemical reaction instrument of the present application.

[0021] REFERENCE NUMERALS 1, photochemical reaction instrument body; 11, reaction chamber; 12, illumination lamp bead; 13, test tube socket; 14, first display screen; 15, first rotary encoder; 16, photochemical reaction instrument switch; 17, safety; 18, 220V power supply interface; 19, first power supply communication interface; 110, single communication interface; 111, support leg; 2, peristaltic pump assembly; 21, peristaltic pump outer shell; 22, pump head; 221, reaction liquid input end; 222, reaction liquid output end; 23, second display screen; 24, flow direction control hand lever; 25, second rotary encoder; 26, peristaltic pump switch; 27, second power supply communication interface; 28, peristaltic pump power supply interface; 3, reaction plug-in assembly; 31, plug-in column body; 32, liquid inlet nozzle; 33, liquid outlet nozzle; 34, transparent tube; 4, threaded hole; 5, clamping slide rail; 6, clamping block. DETAILED DESCRIPTION

[0022] The technical solutions of the present application are further described below by means of the accompanying drawings and examples.

[0023] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as having the usual meaning as understood by a person having ordinary skill in the art to which the present application pertains. The terms "first", "second" and similar words used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar words mean that the elements or objects appearing before the words cover the elements or objects listed after the words and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Example 1 As shown in Figure 1 , the present application provides a continuous flow photochemical reaction instrument, which comprises a photochemical reaction instrument body 1, which provides a place for photochemical reaction of reaction liquid. As shown in Figure 2 , a reaction chamber 11 is formed in the middle of the photochemical reaction instrument body 1, and an illumination lamp bead 12 is arranged on the inner wall of the reaction chamber 11, which is used to provide illumination light of different intensity and frequency band for the reaction liquid during photochemical reaction.

[0025] The top of the reaction chamber 11 is open and movably connected with the reaction plug-in assembly 3, and the input end of the reaction plug-in assembly 3 is connected with the peristaltic pump assembly 2 through a pipeline. The reaction plug-in assembly 3 can make the reaction liquid uniformly flow through the reaction chamber 11 and fully contact with the irradiation light for reaction. The peristaltic pump assembly 2 provides driving force for the flow of the reaction liquid. Since the reaction liquid is subjected to photochemical reaction with the light in the reaction chamber 11 during the flow in the reaction plug-in assembly 3, the photochemical reaction instrument of the embodiment can realize uninterrupted photochemical reaction of the reaction liquid, meet the demand for photochemical reaction of a large amount of reaction liquid, and has high efficiency.

[0026] As shown in Figure 3 , the upper and lower sides of the photochemical reaction instrument body 1 are both provided with support legs 111 for supporting the photochemical reaction instrument body 1. The bottom of the reaction chamber 11 is provided with a plurality of test tube sockets 13. When a small amount of reaction liquid needs to be subjected to photochemical reaction, the photochemical reaction instrument body 1 is inverted, the test tube containing the reaction liquid is inserted into the test tube socket 13, and the photochemical reaction instrument body 1 is started to irradiate the reaction liquid.

[0027] As shown in Figure 4 , the reaction plug-in assembly 3 includes a plug-in cylinder 31, and the top of the plug-in cylinder 31 is provided with a liquid inlet nozzle 32 and a liquid outlet nozzle 33. The liquid inlet nozzle 32 is connected with the liquid supply end of the peristaltic pump assembly 2. The liquid inlet nozzle 32 and the liquid outlet nozzle 33 are connected with a transparent tube 34 wound on the plug-in cylinder 31. After the reaction liquid flows into the liquid inlet nozzle 32, it spirally flows through the transparent tube 34 below to fully perform photochemical reaction in the reaction chamber 11, and finally flows out from the liquid outlet nozzle 33. Different transparent tubes 34 can be provided for different reaction liquids to adjust the reaction time to a certain extent.

[0028] As shown in Figures 5-8 , the front of the photochemical reaction instrument body 1 is provided with a first display screen 14 and a first rotary encoder 15 for displaying various information in the photochemical reaction process and controlling various parameters, respectively. The back is provided with a photochemical reaction instrument switch 16, a safety device 17, and a 220V power supply interface 18 for controlling the working state of the photochemical reaction instrument body 1 and supplying power to the photochemical reaction instrument body 1.

[0029] In the embodiment, a threaded hole 4 is formed in the side wall of the photochemical reaction instrument body 1, and a clamping sliding rail 5 is fixed at the threaded hole 4 through a screw. A clamping block 6 matched with the clamping sliding rail 5 is installed on the side wall of the peristaltic pump outer shell 21. The clamping block 6 and the clamping sliding rail 5 are clamped with each other to splice the photochemical reaction instrument body 1 and the peristaltic pump assembly 2 into a whole, which is convenient to take.

[0030] The peristaltic pump assembly 2 comprises a peristaltic pump outer shell 21, inside which a stepping motor and a pump cavity (not shown in the figure) are fixedly connected to each other. The pump cavity is driven by the rotation of the stepping motor to extrude and pump the reaction liquid, so as to realize a flow output of 0.1 mL / min-500 mL / min. The front end of the pump cavity is connected with a pump head 22 fixed on the front surface of the peristaltic pump outer shell 21. The pump head 22 is provided with a reaction liquid input end 221 and a reaction liquid output end 222. The reaction liquid input end 221 is connected with an external liquid supply device through a pipeline, and the reaction liquid output end 222 is connected with a liquid inlet nozzle 32 of the reaction plug-in assembly 3 through a pipeline.

[0031] The top of the peristaltic pump outer shell 21 is provided with a second display screen 23 and a flow direction control hand lever 24. The second display screen 23 is correspondingly provided with a second rotary encoder 25. The second display screen 23 can display the running state of the peristaltic pump assembly 2 in real time. The running state of the peristaltic pump assembly 2 can be controlled through the second rotary encoder 25. The rotation direction of the stepping motor can be controlled through the flow direction control hand lever 24, so as to control the flow direction of the reaction liquid, thereby reducing the requirement for the position of the reaction liquid supply, and improving the convenience of use.

[0032] As shown in Figure 7 The first power communication interface 19 and the second power communication interface 27 are movably connected by wires to establish a 485 communication connection. After the 485 communication connection is established between the photochemical reaction instrument body 1 and the peristaltic pump assembly 2, the first display screen 14 of the photochemical reaction instrument body 1 can also display the running data of the peristaltic pump assembly 2 in real time. The running state of the peristaltic pump assembly 2 can be controlled through the first rotary encoder 15, without the need for separate control of the peristaltic pump assembly 2. The operation can be more convenient, that is, the photochemical reaction instrument body 1 and the peristaltic pump assembly 2 can be controlled respectively and individually, thereby improving the flexibility and diversity in the later use process.

[0033] In addition, the photochemical reaction instrument body 1 can also supply power to the peristaltic pump assembly 2. When 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 additionally connected with an external power supply.

[0034] A single communication interface 110 is arranged on the side wall of the photochemical reaction instrument body 1, through which the photochemical reaction instrument body 1 can be connected in 485 communication with other multiple same photochemical reaction instrument bodies 1, can simultaneously meet the reaction demand of multiple different light irradiation on the reaction liquid, and is suitable for complex reaction scenes. Since the threaded holes are arranged on the side wall of the photochemical reaction instrument body 1, the clamping sliding rails 5 and the clamping blocks 6 can be correspondingly installed between adjacent photochemical reaction instrument bodies 1 according to the need, so that the adjacent photochemical reaction instrument bodies 1 are spliced.

[0035] Therefore, the continuous flow photochemical reaction instrument can realize continuous reaction, improve photochemical reaction efficiency and stability, has integrated design, is beneficial to simplify the operation process, and has high reaction scene adaptability.

[0036] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application but not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present application.

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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