Continuous flow chemical reaction device

Abstract

The utility model relates to a continuous flow chemical reaction device which comprises a bottom plate and a top plate which are fixedly connected. A flow channel is formed in the bottom plate, a light-transmitting plate body and a lamp holder provided with a plurality of lamp bodies are arranged on the top plate, and light beams emitted by the lamp bodies can irradiate the bottom face of the flow channel through the plate body. The flow channel is characterized in that a plurality of convex block bodies are distributed on the bottom surface at intervals along the extension direction of the flow channel, and the cross sections of the convex block bodies are triangular. The plate body is in contact with the ridge portion of the bump body. The first face of the protruding block body faces the upstream side, the second face faces the downstream side, and the included angle formed by the first face relative to the vertical direction is smaller than the included angle formed by the second face relative to the vertical direction. Notch parts are formed in the two ridge corner positions of the upper portion of the protruding block body respectively, and a vertical distance is formed between the lower ends of the notch parts and the root of the protruding block body. According to the utility model, the solution can be promoted to generate turbulent flow in the flowing process and is in contact with light, so that the utilization rate of luminous efficiency can be improved, and the photochemical reaction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical reaction device technology, specifically to a continuous flow chemical reaction device. Background Technology

[0002] Photochemical reactions are chemical reactions initiated by the absorption of a photon by an atom, molecule, free radical, or ion, and are a crucial class of reactions in chemical synthesis. Among the developed photochemical processes, fixed-bed reactors are the most widely used. However, their main problems are low mixing efficiency, poor mass transfer between light and solution, incomplete reactions, and the need for multiple cycles of the solution to achieve the required reaction conditions. Therefore, there is an urgent need to design a device that can improve the utilization rate of light energy and enhance the efficiency of photochemical reactions. Utility Model Content

[0003] To achieve the above objectives, this utility model provides a continuous flow chemical reaction device that can induce turbulence in the solution during the flow process and allow it to come into contact with light, thereby improving the utilization rate of light efficiency and increasing the efficiency of photochemical reactions.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a continuous flow chemical reaction device, including a bottom plate and a top plate. A flow channel is formed on the bottom plate, and a light-transmitting plate and lamp holders with multiple lamp bodies are fixed on the top plate, so that the lamp bodies are distributed alternately along the extension direction of the flow channel.

[0005] After the top plate is fixed to the bottom plate, the lamp body can be positioned directly above the flow channel, so that the beam of light emitted by it can illuminate the bottom surface of the flow channel. In this way, when the reaction solution flows in the flow channel, the light emitted by the lamp body can pass through the plate and illuminate the solution, causing a photochemical reaction.

[0006] Multiple protrusions are arranged alternately along the extension direction of the flow channel on the bottom surface, and the cross-section of each protrusion is triangular. The plate contacts the ridges of the protrusions, thus sealing the upper port of the flow channel. One face of the protrusion faces the upstream side, and the other face faces the downstream side, with the angle formed by the first face relative to the vertical direction being smaller than the angle formed by the second face relative to the vertical direction. Notches are formed at the two ridge corners on the upper part of the protrusion, and a vertical distance is formed between the lower end of the notch and the root of the protrusion.

[0007] Optionally, a curved groove is formed on the bottom surface and between the roots of two adjacent protrusions.

[0008] Optionally, two flow-blocking strips are provided on the second surface, arranged opposite each other on both sides in the width direction of the protrusion. One end of the flow-blocking strip extends to the vicinity of the end face of the protrusion, and the other end extends downward to a position close to the center of the width direction of the protrusion, so that a gap is formed between the opposite ends of the two flow-blocking strips provided on the same second surface.

[0009] Optionally, a notch may be formed on the flow barrier, either at the center of its length extension or by forming multiple notches alternately along its entire length extension.

[0010] Optionally, multiple protruding ridges are distributed on the second face, and these multiple protruding ridges are arranged alternately from the top to the root of the second face.

[0011] Alternatively, the protrusions may be wavy in their length extension direction.

[0012] Optionally, the angle formed by face one relative to the vertical direction is in the range of 10 degrees to 30 degrees. The angle formed by face two relative to the vertical direction is in the range of 40 degrees to 70 degrees.

[0013] The beneficial effects of this invention are: it can promote turbulence in the solution during the flow process and bring it into contact with light, thereby improving the utilization rate of light efficiency and the efficiency of photochemical reaction. Attached Figure Description

[0014] Figure 1 This is a top view of the base plate structure.

[0015] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point I in the middle.

[0016] Figure 3 For along Figure 1 A schematic diagram of the cross-sectional structure of the bottom plate and the top plate when the bottom plate is cut at point AA.

[0017] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point II.

[0018] Figure 5 This is a schematic diagram of the right-side structure of the convex body.

[0019] In the diagram: 10 base plate, 11 bottom surface, 12 protrusion, 121 surface one, 122 surface two, 1221 flow barrier, 1222 protrusion, 123 notch, 13 curved groove; 20 top plate, 21 outer frame, 22 plate, 23 lamp holder, 231 lamp body. Detailed Implementation

[0020] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0021] like Figures 1 to 5 A continuous flow chemical reaction apparatus is shown, comprising a base plate 10 and a top plate 20. A flow channel is formed on the base plate 10, and a light-transmitting plate 22 and a lamp holder 23 with multiple lamps 231 distributed alternately are fixed on the top plate 20, with the lamps 231 arranged along the extension direction of the flow channel. After the top plate 10 is fixed to the base plate 20, the lamps 231 are positioned directly above the flow channel. Thus, when the reaction solution flows within the flow channel, the light emitted by the lamps 231 can pass through the plate 22 and irradiate the solution, causing a photochemical reaction.

[0022] Multiple flow channels can be provided on the base plate 10. If the flow channels extend in the left-right direction (e.g.) Figure 1 , Figure 3 As shown, the multiple flow channels can be arranged alternately. The top plate 20 includes an outer frame 21, a plate 22 fixed to the outer frame 21 and close to the side facing the bottom plate 10, and a lamp holder 23 fixed to the outer frame 21 and located on the side opposite to the bottom plate 10. Multiple lamps 231 are distributed alternately in the left-right direction, and the downward-shielding light beam can pass through the plate 22 (which may be microglass) and illuminate the bottom surface 11 of the flow channel. When a solution is introduced into the flow channel and flows from left to right, it can come into contact with the light beam and undergo a photochemical reaction. If multiple flow channels are arranged alternately, each flow channel is correspondingly equipped with a lamp 231 directly above it.

[0023] In the technical solution of this application, the structural operation of the flow channel is optimized as follows.

[0024] like Figures 1 to 5 As shown, a plurality of protrusions 12 are alternately distributed on the bottom surface 11 along the extension direction of the flow channel (i.e., along the left-right direction shown in the figure), and the cross-section of the protrusions 12 is triangular or approximately triangular (see Figure 11). Figure 3 , Figure 4 The root of the protrusion 12 connects to the bottom surface 11 (in fact, the protrusion 12 and the bottom plate 10 are integrally formed), and the ridge / ridge line of the protrusion 12 extends to the upper port of the flow channel. After the top plate 20 is fixed to the bottom plate 10, the lower end face of the plate 22 can contact the ridge / ridge line of the protrusion 12 and can cover the upper port of the flow channel, so that the flow channel is formed with an inlet at the left end and an outlet at the right end. The ridge / ridge line on the upper part of the protrusion 12 can be a line or a narrow surface, that is, the plate 22 and the ridge can form a line-surface contact matching relationship or a surface-to-surface contact matching relationship.

[0025] The first surface 121 of the protrusion 12 faces the upstream side (i.e., the side where the solution flows in), and the second surface 122 faces the downstream side. The angle formed by the first surface 121 relative to the vertical direction is smaller than the angle formed by the second surface 122 relative to the vertical direction. That is, the first surface 121 is a steep surface, and the second surface 122 is a gentle surface. After the solution impacts the first surface 121, it gradually rises, and after reaching a certain height, it can flow towards the second surface 122 through the two notches 123 located at the two ridges on the upper part of the protrusion 12. (See [reference]). Figures 1 to 5 The arrows indicate a schematic diagram of the solution flow. Generally, the angle formed by surface 121 relative to the vertical direction is between 10 and 30 degrees; the angle formed by surface 122 relative to the vertical direction is between 40 and 70 degrees.

[0026] Under the effect of the above-mentioned improved structure, when the solution flows from left to right in the flow channel, it can be continuously obstructed by the protrusion 12, and turbulence occurs in the vertical direction (i.e., the height direction) and the front-back direction, forming a thin liquid flow layer on one side of the surface 122. This allows the solution to fully contact the light irradiated by the lamp body 231, thereby achieving the purpose of improving the utilization rate of light efficiency and improving the efficiency of photochemical reaction.

[0027] A curved groove 13 is formed on the bottom surface 11 between the roots of two adjacent protrusions 12. Specifically, the left side of the curved groove 13 connects to the root of the second face 122 of the upstream protrusion 12; the right side of the curved groove 13 connects to the root of the first face 121 of the downstream protrusion 12. The curved groove 13 extends the flow distance of the solution on the second face 122 side, thus promoting more sufficient contact between the solution and light.

[0028] On the second surface 122, there is a [feature] in the width direction of the protrusion body 12 (i.e., [the feature]). Figure 1 In the front and back directions shown, Figure 5Two flow-blocking strips 1221 are arranged opposite each other in the left-right direction (as shown). One end of each flow-blocking strip 1221 extends to the vicinity of the end face (in the width direction) of the protrusion 12 (including the case of extending to the end face and the case of having a small gap between the opposite end faces), and the other end extends downward to a position close to the center of the width direction of the protrusion 12, that is, close to... Figure 5 The position of the OO line is shown. Therefore, a gap is formed between the opposite ends of the two flow-blocking strips 1221 on the same surface 122. The length extension direction of the flow-blocking strip 1221 is downward from the outside to the inside, see [reference]. Figure 5 .

[0029] By setting the flow-blocking strip 1221, the solution flowing out from the notch 123 can be guided to flow towards the central region of the width of the second surface 122, thereby increasing the coverage area of ​​the solution and the contact area between the solution and the light beam, which helps to improve the utilization rate of light efficiency and the reaction rate of photochemical reaction. Furthermore, at least one notch can be formed on the flow-blocking strip 1221, either at the central position along its length or multiple notches can be formed alternately along its entire length. By setting notches on the flow-blocking strip 1221, some solution can flow through the root of the second surface 122 at the notch, and some solution can flow towards the central region of the width, further increasing the coverage area of ​​the solution on the second surface 122. This makes the thickness / depth of the flow layer on the second surface 122 relatively thinner, which helps to further improve the utilization rate of light efficiency and the reaction rate of photochemical reaction.

[0030] On the second surface 122, a plurality of protruding ridges 1222 are distributed and arranged alternately from the top to the root of the second surface 122. By providing these protruding ridges 1222, the solution can more fully cover the entire surface as it flows from the top to the root of the second surface 122, and turbulence can be promoted in the solution. This allows for relatively significant mass transfer and mixing during the photochemical reaction, thus helping to improve the reaction rate / efficiency of the photochemical reaction. The protruding ridges 1222 have a wavy shape along their length.

[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit it. Many aspects of this utility model can be improved without departing from the overall concept. Those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A continuous flow chemical reaction device, comprising a fixedly connected bottom plate (10) and a top plate (20); a flow channel is formed on the bottom plate (10), and a light-transmitting plate body (22) and a lamp holder (23) in which a plurality of lamp bodies (231) are distributed are arranged on the top plate (20), so that the light beams emitted by the lamp bodies (231) can irradiate on the bottom surface (11) of the flow channel through the plate body (22); characterized in that: A plurality of protrusion bodies (12) are arranged on the bottom surface (11) along the extension direction of the flow channel, and the cross section of the protrusion body (12) is triangular; the plate body (22) is in contact with the ridge of the protrusion body (12); the first surface (121) of the protrusion body (12) faces the upstream side, the second surface (122) faces the downstream side, and the included angle of the first surface (121) with the vertical direction is smaller than the included angle of the second surface (122) with the vertical direction; a notch (123) is formed at the two ridge angles of the upper part of the protrusion body (12), and a vertical spacing is formed between the lower end of the notch (123) and the root of the protrusion body (12). ​ 2. The continuous flow chemical reaction apparatus according to claim 1, wherein: A curved groove (13) is formed on the bottom surface (11) between the roots of two adjacent protrusion bodies (12).

3. The continuous flow chemical reaction apparatus according to claim 1 or 2, characterized by: Two flow resistance strips (1221) are arranged on the second surface (122) opposite to each other in the width direction of the protrusion body (12); one end of the flow resistance strip (1221) extends to the vicinity of the end surface of the protrusion body (12), and the other end extends downward to the position close to the center of the width of the protrusion body (12).

4. The continuous flow chemical reaction apparatus according to claim 3, wherein: Notches are formed on the flow resistance strip (1221), or a plurality of notches are formed on the flow resistance strip (1221) along the length extension direction of the flow resistance strip (1221).

5. The continuous flow chemical reaction apparatus according to claim 3, wherein: A plurality of protrusions (1222) are arranged on the second surface (122) from the top to the root of the second surface (122).

6. The continuous flow chemical reaction apparatus according to claim 1 or 2, characterized by: The protrusions (1222) are in a wavy shape in the length extension direction of the protrusions (1222).

7. The continuous flow chemical reaction apparatus according to claim 6, wherein: The included angle of the first surface (121) with the vertical direction is in the range of 10 to 30 degrees; the included angle of the second surface (122) with the vertical direction is in the range of 40 to 70 degrees.

8. The continuous flow chemical reaction apparatus of claim 1, wherein: ​

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