Flat plate solid-liquid heterogeneous continuous streamer reactor

Abstract

The utility model provides a flat plate solid-liquid heterogeneous continuous flow photoreactor, which belongs to the technical field of photochemical reaction equipment and comprises a reaction layer main body, a plurality of filtering bodies, a light-transmitting blocking component and a rear blocking component, a reaction chamber, a liquid inlet channel and a liquid outlet channel are arranged in the reaction layer main body, and the liquid inlet channel and the liquid outlet channel are communicated with the reaction chamber; the plurality of filtering bodies are respectively arranged on the liquid inlet channel and the liquid outlet channel; the light-transmitting blocking assembly is hermetically connected with one side of the reaction layer main body; and the rear blocking assembly is hermetically connected with the other side of the reaction layer main body. The whole reaction process is concentrated and continuously performed in the reaction chamber, and the reaction liquid does not contain solid substances, so that the solid-liquid heterogeneous continuous flow photoreaction can be realized, the pipeline blockage caused by solid substance accumulation can be avoided, and the solid-liquid heterogeneous photoreaction efficiency can be favorably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photochemical reaction equipment, and more specifically relates to a flat plate solid-liquid heterogeneous continuous flow photoreactor. Background Art

[0002] Uninterrupted and continuous chemical reactions are the best means to increase the volume of many valuable chemical reactions. Currently, microfluidic tubular reactors are usually used. However, some chemical reactions, especially photochemical reactions, involve a large number of solid-liquid heterogeneous reactions, that is, the reactants such as catalysts and salts are solids in the form of relatively large particles, and there is a mixture of solid and liquid during the reaction. This form makes it difficult to achieve uninterrupted and continuous chemical reactions. When such a solid-liquid mixture enters a microfluidic tubular reactor, it may clog the pipeline and affect the normal progress of the reaction; and pumping liquids containing solid particles will damage the pump head, so a special pump is required. This causes great trouble for the increase in the volume of solid-liquid heterogeneous chemical reactions. Utility Model Content

[0003] The utility model aims to provide a flat solid-liquid heterogeneous continuous flow photoreactor to solve the technical problem in the prior art that solid-liquid heterogeneous chemical reactions are difficult to achieve uninterrupted continuous chemical reactions.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a flat-plate solid-liquid heterogeneous continuous flow photoreactor, including a reaction layer body, a plurality of filters, a light-transmitting sealing assembly and a rear sealing assembly, wherein a reaction chamber and a liquid inlet channel and a liquid outlet channel connected to the reaction chamber are arranged inside the reaction layer body; a plurality of filters are respectively arranged on the liquid inlet channel and the liquid outlet channel; the light-transmitting sealing assembly is sealed and connected to one side of the reaction layer body; and the rear sealing assembly is sealed and connected to the other side of the reaction layer body.

[0005] In combination with the above technical solution, in a possible implementation method, a plurality of reaction chambers are provided on the reaction layer body, a flow channel is provided between adjacent reaction chambers, a filter body is provided on the flow channel, the plurality of reaction chambers are linearly connected through the flow channel, and a liquid inlet channel and a liquid outlet channel are respectively provided on the head and tail reaction chambers.

[0006] In combination with the above technical solution, in a possible implementation method, a plurality of the reaction chambers are arranged in an array on the reaction layer body; the flow channel includes a notch structure provided on the reaction layer body and connected to two adjacent reaction chambers; the filter body is a block-shaped porous structure embedded in the notch structure.

[0007] In combination with the above technical solution, in a possible implementation method, the light-transmitting sealing assembly includes a reaction layer light-transmitting sheet, a cooling layer light-transmitting sheet and a front packaging shell, the reaction layer light-transmitting sheet is sealed and connected to one side of the reaction layer body; the cooling layer light-transmitting sheet is arranged on the outside of the reaction layer light-transmitting sheet and is spaced apart from the reaction layer light-transmitting sheet to form a front temperature control cavity; the front packaging shell is connected to the reaction layer body to fix the reaction layer light-transmitting sheet and the cooling layer light-transmitting sheet on the reaction layer body, and the front packaging shell is hollowed out at the position corresponding to the reaction chamber.

[0008] In combination with the above technical solution, in a possible implementation, the light-transmitting sealing assembly also includes a supporting body, which is arranged between the reaction layer light-transmitting sheet and the cooling layer light-transmitting sheet, so that the reaction layer light-transmitting sheet and the cooling layer light-transmitting sheet are arranged at intervals to form a front temperature control cavity.

[0009] In combination with the above technical solution, in a possible implementation method, the rear sealing assembly includes a reaction layer sealing sheet and a rear packaging shell, the reaction layer sealing sheet is sealed and connected to the other side of the reaction layer body; the rear packaging shell is connected to the reaction layer body to fix the reaction layer sealing sheet on the reaction layer body, and the rear packaging shell is spaced apart from the outer side surface of the reaction layer sealing sheet to form a rear temperature control cavity.

[0010] In combination with the above technical solution, in a possible implementation method, the reaction layer body is provided with a temperature control liquid inlet, a temperature control liquid outlet and a connecting hole, the connecting hole connects the front temperature control cavity and the rear temperature control cavity, the temperature control liquid inlet is connected to one of the front temperature control cavity and the rear temperature control cavity, and the temperature control liquid outlet is connected to the other of the front temperature control cavity and the rear temperature control cavity.

[0011] In combination with the above technical solution, in a possible implementation manner, a sealing member is provided between the reaction layer light-transmitting sheet and the reaction layer sealing sheet and the reaction layer body.

[0012] In combination with the above technical solution, in a possible implementation, the filter body is a columnar glass sand core; the reaction layer light-transmitting sheet, the cooling layer light-transmitting sheet and the reaction layer sealing sheet are all quartz sheets; the front packaging shell and the rear packaging shell are both connected to the reaction layer body by screws.

[0013] In combination with the above technical solution, in a possible implementation, the flat-plate solid-liquid heterogeneous continuous flow photoreactor further includes a plurality of stirring components, and the plurality of stirring components are respectively arranged in the plurality of reaction chambers.

[0014] The beneficial effect of the flat solid-liquid heterogeneous continuous flow photoreactor provided by the utility model is that: compared with the prior art, the utility model seals the reaction chamber on the reaction layer body through a light-transmitting sealing component and a rear sealing component, and isolates the liquid inlet channel, liquid outlet channel and flow channel between the reaction chambers through a filter body, so that solid reactants such as catalysts are confined in the reaction chamber, and the reaction liquid can be continuously injected through the filter body, and react with the solid reactants under the action of light, and then flow out continuously; the entire reaction process is concentrated in the reaction chamber and carried out continuously, and the reaction liquid does not contain solid matter, so that the solid-liquid heterogeneous continuous flow photoreaction can be realized, and the pipeline will not be blocked due to the accumulation of solid matter, which is beneficial to improving the efficiency of the solid-liquid heterogeneous photoreaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the structure of a flat solid-liquid heterogeneous continuous flow photoreactor provided in an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the split structure of a flat solid-liquid heterogeneous continuous flow photoreactor provided in an embodiment of the utility model;

[0018] Figure 3 A schematic structural diagram of the main part of the reaction layer of the flat solid-liquid heterogeneous continuous flow photoreactor provided in an embodiment of the utility model;

[0019] Figure 4 A schematic cross-sectional view of the flat solid-liquid heterogeneous continuous flow photoreactor provided in an embodiment of the utility model at the inlet of the temperature control liquid;

[0020] Figure 5 This is a schematic cross-sectional structural diagram of the middle part of a flat-plate solid-liquid heterogeneous continuous flow photoreactor provided in an embodiment of the utility model.

[0021] Among them, the reference numerals in the figures are as follows:

[0022] 10. Reaction layer body; 11. Reaction chamber; 12. Liquid inlet channel; 13. Liquid outlet channel; 14. Flow channel; 15. Connecting hole; 16. Temperature control liquid inlet; 17. Temperature control liquid outlet;

[0023] 20. Filter body;

[0024] 30. Transparent blocking assembly; 31. Reaction layer transparent sheet; 32. Cooling layer transparent sheet; 33. Front packaging shell;

[0025] 40. rear sealing assembly; 41. reaction layer sealing sheet; 42. rear packaging shell;

[0026] 50. Embedded groove;

[0027] 60. Stirring component. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the present application, not all of the embodiments, and the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0030] When an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0031] In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0032] The flat solid-liquid heterogeneous continuous flow photoreactor provided by the utility model is now described.

[0033] like Figures 1 to 3As shown, the first embodiment of the utility model provides a flat-plate solid-liquid heterogeneous continuous flow photoreactor, including a reaction layer body 10, a plurality of filter bodies 20, a light-transmitting sealing assembly 30 and a rear sealing assembly 40. A reaction chamber 11 and a liquid inlet channel 12 and a liquid outlet channel 13 connected to the reaction chamber 11 are provided inside the reaction layer body 10; a plurality of filter bodies 20 are respectively arranged on the liquid inlet channel 12 and the liquid outlet channel 13; the light-transmitting sealing assembly 30 is sealed and connected to one side of the reaction layer body 10; and the rear sealing assembly 40 is sealed and connected to the other side of the reaction layer body 10.

[0034] When in use, the solid reactant and the stirring assembly 60 are loaded into the reaction chamber 11, and the liquid inlet channel 12 and the liquid outlet channel 13 of the reaction chamber 11 are separated by the filter body 20, so that the reaction liquid can pass through, while the solid reactant and the stirring assembly 60 are confined in the reaction chamber 11; when a reaction is required, the reaction liquid is continuously injected into the liquid inlet channel 12 of the reaction chamber 11, and a light reaction is carried out, and the stirring assembly 60 is used for stirring at the same time, and the reaction liquid after the reaction is filtered out from the liquid outlet channel 13. Among them, the solid reactant is a catalyst or other solid substances participating in the reaction.

[0035] Compared with the prior art, the flat-plate solid-liquid heterogeneous continuous flow photoreactor provided in the present embodiment seals the reaction chamber 11 on the reaction layer body 10 by means of a light-transmitting sealing component 30 and a rear sealing component 40, and isolates the liquid inlet channel 12, the liquid outlet channel 13 and the flow channel 14 between the reaction chambers 11 by means of a filter body 20, so that solid reactants such as catalysts are confined in the reaction chamber 11, and the reaction liquid can be continuously injected through the filter body 20 at a required flow rate by pumping, and reacts with the solid reactants under the action of light, and then flows out continuously; the entire reaction process is concentrated in the reaction chamber 11 and is carried out continuously, and the reaction liquid does not contain solid matter. Therefore, it can realize the solid-liquid heterogeneous continuous flow photoreaction, and will not cause pipeline blockage due to solid accumulation, which is beneficial to improving the efficiency of the solid-liquid heterogeneous photoreaction.

[0036] like Figures 1 to 5 As shown, the utility model provides a specific implementation method based on the first implementation method as follows:

[0037] A plurality of reaction chambers 11 are provided on the reaction layer body 10, and a flow passage 14 is provided between adjacent reaction chambers 11, and a filter 20 is provided on the flow passage 14. The plurality of reaction chambers 11 are linearly connected through the flow passage 14, and a liquid inlet channel 12 and a liquid outlet channel 13 are provided on the first and last reaction chambers 11, respectively. When in use, the reaction liquid flowing out of the previous reaction chamber 11 after the reaction enters the next reaction chamber 11 through the flow passage 14 to continue the reaction, so that the light reaction time can be extended and the light reaction efficiency can be improved through the linearly connected plurality of reaction chambers 11.

[0038] For photochemical reactions, light can easily cause the reaction liquid to heat up, and sometimes the reaction temperature needs to be lowered to control thermal side reactions; if it is a photothermal-friendly photoreaction, sometimes the reaction temperature needs to be increased to improve the effect. Therefore, it is necessary to add a temperature control solution based on the first embodiment.

[0039] Specifically, Figures 2 to 5 As shown, the light-transmitting blocking assembly 30 includes a reaction layer light-transmitting sheet 31, a cooling layer light-transmitting sheet 32, a front encapsulation shell 33 and a support body. The reaction layer light-transmitting sheet 31 is sealed and connected to one side of the reaction layer body 10; the cooling layer light-transmitting sheet 32 ​​is arranged outside the reaction layer light-transmitting sheet 31 and is spaced apart from the reaction layer light-transmitting sheet 31; the support body is arranged between the reaction layer light-transmitting sheet 31 and the cooling layer light-transmitting sheet 32, so that the reaction layer light-transmitting sheet 31 and the cooling layer light-transmitting sheet 32 ​​are spaced apart to form a front temperature control cavity; the front encapsulation shell 33 is connected to the reaction layer body 10 to fix the reaction layer light-transmitting sheet 31 and the cooling layer light-transmitting sheet 32 ​​on the reaction layer body 10, and the front encapsulation shell 33 is hollowed out at a position corresponding to the reaction chamber 11 to allow light to pass through. The cooling layer light-transmitting sheet 32 ​​and the front encapsulation shell 33 can be fixed by adhesive bonding with a sealant, or can be sealed and connected by a sealing strip.

[0040] The rear sealing assembly 40 includes a reaction layer sealing sheet 41 and a rear packaging shell 42. The reaction layer sealing sheet 41 is sealed and connected to the other side of the reaction layer body 10. The rear packaging shell 42 is connected to the reaction layer body 10 to fix the reaction layer sealing sheet 41 on the reaction layer body 10, and the rear packaging shell 42 is spaced apart from the outer side surface of the reaction layer sealing sheet 41 to form a rear temperature control cavity.

[0041] The reaction layer body 10 is provided with a temperature control liquid inlet 16, a temperature control liquid outlet 17 and a connecting hole 15. The connecting hole 15 connects the front temperature control cavity and the rear temperature control cavity. The temperature control liquid inlet 16 is connected to one of the front temperature control cavity and the rear temperature control cavity, and the temperature control liquid outlet 17 is connected to the other of the front temperature control cavity and the rear temperature control cavity.

[0042] When in use, the reaction temperature of the entire reactor is controlled by controlling the temperature and flow rate of the temperature control liquid introduced through the temperature control liquid inlet 16 .

[0043] In a specific embodiment, there are at least two connecting holes 15, which are spaced apart on one side of the reaction layer body 10, and the temperature control liquid inlet 16 and the temperature control liquid outlet 17 are arranged on the opposite side of the connecting hole 15. In this way, after the temperature control liquid enters from the temperature control liquid inlet 16, surface flow can be formed on both the front temperature control cavity and the rear temperature control cavity, thereby improving the temperature control efficiency.

[0044] Furthermore, in order to improve the sealing performance, sealants are provided between the reaction layer transparent sheet 31 and the reaction layer sealing sheet 41 and the reaction layer body 10 . The reaction layer body 10 is provided with an embedding groove 50 , and the sealant is embedded in the embedding groove 50 .

[0045] The sealing member may be a sealing strip, a sealing gasket, a sealing adhesive, or the like, so as to seal the reaction layer transparent sheet 31 and the reaction layer sealing sheet 41 with the reaction layer body 10 to prevent leakage of the reaction liquid inside; and to seal the reaction chambers 11 so that the reaction liquid flows between the reaction chambers 11 only through the filter body 20. In some specific embodiments, the sealing member is a sealing strip made of a mixture of three materials: perfluoroether, fluororubber, and silicone.

[0046] To improve the reaction uniformity, the flat solid-liquid heterogeneous continuous flow photoreactor further includes a plurality of stirring assemblies 60, which are respectively arranged in a plurality of reaction chambers 11. The stirring assembly 60 can be a stirring blade or a magnetic stirring bar. When a magnetic stirring bar is used, it is driven to rotate by a magnetic driver arranged outside the reactor. In order to avoid affecting the magnetic force transmission, the rear packaging shell 42 is made of a material with a relatively low influence on the magnetic force transmission.

[0047] Specifically, a plurality of reaction chambers 11 are arranged in an array on the reaction layer body 10 and are arranged in series, so that the reactor becomes a flat plate structure to obtain a better lighting effect.

[0048] The flow passage 14 includes a notch structure provided on the reaction layer body 10 and communicating with two adjacent reaction chambers 11; the filter body 20 is a block-shaped porous structure sealed and filled in the notch structure to prevent the filter body 20 from slipping due to the flow of the reaction liquid. In some specific embodiments, the filter body 20 is a columnar glass sand core that can pass liquid but not solid. The filter body 20 is embedded in the notch structure, and both ends protrude from the side walls of the reaction chamber 11 to have a larger filtering area; the reaction layer light-transmitting sheet 31, the cooling layer light-transmitting sheet 32 ​​and the reaction layer sealing sheet 41 are all quartz sheets.

[0049] The front packaging shell 33 and the rear packaging shell 42 are connected to the reaction layer body 10 by screws, so as to be opened and filled. Specifically, the periphery and center of the front packaging shell 33, the rear packaging shell 42 and the reaction layer body 10 are provided with screw holes, and are connected by screws to ensure compression and sealing.

[0050] To improve the sealing performance, an O-ring is sleeved on the screw, and the O-ring is sandwiched between the reaction layer transparent sheet 31, the reaction layer sealing sheet 41 and the reaction layer body 10 to avoid leakage at the screw part. The O-ring is made of a mixture of three materials: perfluoroether, fluororubber and silicone.

[0051] The part of the reaction layer body 10 that contacts the reaction liquid and the stirring assembly 60 are both provided with a polytetrafluoroethylene coating.

[0052] The flat-plate solid-liquid heterogeneous continuous flow photoreactor provided by the utility model solves the problem of solids blocking the flow path, and has relatively low requirements for pumping devices, so that a low-cost pump can be used to transport liquids; at the same time, the flat-plate reactor is conducive to achieving a larger volume reaction in a small volume, and has a larger light-receiving area than a circular tube, which is more conducive to improving the reaction efficiency.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat solid-liquid heterogeneous continuous flow photoreactor, characterized in that: include: A reaction layer body (10) is provided with a reaction chamber (11) and a liquid inlet channel (12) and a liquid outlet channel (13) in communication with the reaction chamber (11); A plurality of filter bodies (20), respectively arranged on the liquid inlet channel (12) and the liquid outlet channel (13); A light-transmitting sealing component (30) is sealed and connected to one side of the reaction layer body (10); The rear sealing component (40) is sealed and connected to the other side of the reaction layer body (10).

2. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 1, characterized in that: The reaction layer body (10) is provided with a plurality of reaction chambers (11), a flow passage (14) is provided between adjacent reaction chambers (11), the filter body (20) is provided on the flow passage (14), the plurality of reaction chambers (11) are linearly connected via the flow passage (14), and the liquid inlet channel (12) and the liquid outlet channel (13) are provided on the first and last reaction chambers (11), respectively.

3. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 2, characterized in that: The plurality of reaction chambers (11) are arranged in an array on the reaction layer body (10); the flow passage (14) comprises a notch structure provided on the reaction layer body (10) and communicating with two adjacent reaction chambers (11); and the filter body (20) is a block-shaped porous structure sealed and filled in the notch structure.

4. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 1, characterized in that: The light-transmitting blocking component (30) comprises: A reaction layer light-transmitting sheet (31) is sealed and connected to one side of the reaction layer body (10); A cooling layer light-transmitting sheet (32) is arranged outside the reaction layer light-transmitting sheet (31) and is spaced apart from the reaction layer light-transmitting sheet (31) to form a front temperature control cavity; A front encapsulation shell (33) is connected to the reaction layer body (10) to fix the reaction layer light-transmitting sheet (31) and the cooling layer light-transmitting sheet (32) on the reaction layer body (10), and a portion of the front encapsulation shell (33) corresponding to the reaction chamber (11) is hollowed out.

5. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 4, characterized in that: The light-transmitting sealing component (30) further comprises: The support body is arranged between the reaction layer light-transmitting sheet (31) and the cooling layer light-transmitting sheet (32), so that the reaction layer light-transmitting sheet (31) and the cooling layer light-transmitting sheet (32) are arranged at intervals to form a front temperature control cavity.

6. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 4, characterized in that: The rear sealing assembly (40) comprises: A reaction layer sealing sheet (41) is sealingly connected to the other side of the reaction layer body (10); A rear packaging shell (42) is connected to the reaction layer body (10) to fix the reaction layer sealing sheet (41) on the reaction layer body (10), and the rear packaging shell (42) and the outer side surface of the reaction layer sealing sheet (41) are spaced apart to form a rear temperature control cavity.

7. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 6, characterized in that: The reaction layer body (10) is provided with a temperature control liquid inlet (16), a temperature control liquid outlet (17) and a connecting hole (15), wherein the connecting hole (15) connects the front temperature control cavity and the rear temperature control cavity, the temperature control liquid inlet (16) is connected to one of the front temperature control cavity and the rear temperature control cavity, and the temperature control liquid outlet (17) is connected to the other of the front temperature control cavity and the rear temperature control cavity.

8. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 6, characterized in that: Sealing elements are provided between the reaction layer light-transmitting sheet (31) and the reaction layer sealing sheet (41) and the reaction layer main body (10).

9. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 6, characterized in that: The filter body (20) is a columnar glass sand core; the reaction layer light-transmitting sheet (31), the cooling layer light-transmitting sheet (32) and the reaction layer sealing sheet (41) are all quartz sheets; and the front packaging shell (33) and the rear packaging shell (42) are both connected to the reaction layer body (10) by means of screws.

10. The flat solid-liquid heterogeneous continuous flow photoreactor according to claim 2, characterized in that: The flat solid-liquid heterogeneous continuous flow photoreactor further comprises: A plurality of stirring components (60) are respectively disposed in the plurality of reaction chambers (11).

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