A micro-channel reactor for chemical-pharmaceutical

Abstract

The utility model discloses a kind of microchannel reactors for chemical pharmacy, including the reactor body of setting, the reactor cover is arranged on the reactor body, reaction assembly is installed in the reactor body, the reaction assembly includes the reaction pipeline installed in the reactor body inside, the conveying connector is installed in the end of the reaction pipeline, the baffle is installed in the conveying connector inside, and through groove is opened in the baffle, mobile rod is connected in the conveying connector inside and is penetrated, the mobile rod end is connected with moving plate, the first spring is sleeved on the mobile rod outside. The microchannel reactor for chemical pharmacy, reaction pipeline end is connected external pipeline by conveying connector, monitoring valve is arranged on external pipeline, it is convenient to monitor, reduce the problem that artificial inspection leads to low efficiency, conveying connector realizes the steady voltage delivery of raw material to reaction pipeline, guarantee the stability of reaction condition in reaction pipeline, reduce side reaction occurrence.

Description

Technical Field

[0001] This utility model relates to the field of chemical and pharmaceutical technology, specifically a microchannel reactor for chemical and pharmaceutical applications. Background Technology

[0002] In the chemical and pharmaceutical fields, microchannel reactors are widely used for the optimization and control of reaction processes. As a three-dimensional structural element manufactured based on microfabrication technology, microreactors can significantly improve reaction efficiency. However, existing microchannel reactors still have some shortcomings in use. The reactor usually requires multiple connection joints, which makes it necessary to frequently change the inspection position during operation, increasing the complexity of operation.

[0003] To overcome the aforementioned deficiencies, existing technology (Chinese patent CN210279107U, published on April 10, 2020) describes a microchannel reactor for chemical and pharmaceutical applications, comprising: a microchannel reactor body, a spring, and an indicator plate; each of the connection joints in the microchannel reactor body is provided with a hexagonal block. After inspectors have completed the inspection of one connection joint in the microchannel reactor body, they can rotate the hexagonal block according to the day of the week, rotating the cylindrical block on the welded indicator plate, whose Arabic numerals correspond to the day of the week, above the U-shaped block, so that the top of the cylinder is inserted into the circular limiting groove on the cylindrical block, indicating that the connection joint has been inspected for the day. In this way, subsequent personnel responsible for the microchannel reactor body can identify whether the inspectors have performed the inspection operation on each connection joint by observing the position of each cylindrical block at each connection joint.

[0004] Existing technologies use hexagonal blocks and indicator discs to mark inspection progress. However, in actual operation, scale easily accumulates on the surface of the indicator discs, which may cause the indicator discs to rotate poorly, affecting the efficiency of inspection and maintenance. Raw materials enter the reaction zone directly through pipelines, which are easily affected by fluctuations in pump pressure or changes in external pipelines, resulting in unstable local flow rates during the reaction process, which in turn affects heat and mass transfer efficiency and may even trigger side reactions.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing microchannel reactors for chemical and pharmaceutical applications. Therefore, we propose that microchannel reactors for chemical and pharmaceutical applications can effectively solve these problems. Utility Model Content

[0006] The purpose of this invention is to provide a microchannel reactor for chemical and pharmaceutical applications, addressing the issues raised in the background section. Currently, the market uses hexagonal blocks and indicator discs to mark inspection progress, but in actual operation, the surface of the indicator discs is prone to scale buildup. This scale buildup can cause the indicator discs to not rotate smoothly, affecting the efficiency of inspection and maintenance. Furthermore, raw materials directly enter the reaction zone through pipelines, making them susceptible to fluctuations in pump pressure or changes in external pipelines, leading to unstable local flow rates during the reaction process. This, in turn, affects heat and mass transfer efficiency and may even trigger side reactions.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a microchannel reactor for chemical and pharmaceutical applications, comprising a reactor body, a reactor cover, and a reaction assembly installed inside the reactor body. The reaction assembly includes a reaction pipe installed inside the reactor body, a conveying connector installed at the end of the reaction pipe, a baffle installed inside the conveying connector, and a through groove formed on the baffle. A moving rod is connected through the conveying connector, and the moving rod is disposed inside the baffle. A moving plate is connected to the end of the moving rod, and a first spring is sleeved on the outside of the moving rod.

[0008] Preferably, the reactor body includes an internally arranged hierarchical assembly, the hierarchical assembly including a support plate installed inside the reactor body, the upper surface of the support plate being provided with an anti-corrosion layer, and the lower surface of the support plate being provided with a heat insulation layer.

[0009] Preferably, a storage trough is installed on the upper surface of the reactor body, and a support base is provided inside the storage trough, with the support base located at the four corners of the upper surface of the reactor body.

[0010] Preferably, the support base has a limiting groove and a snap-fit ​​groove inside, and the limiting groove and the snap-fit ​​groove are connected.

[0011] Preferably, the reactor cover is provided with a snap-fit ​​assembly, the snap-fit ​​assembly including a snap-fit ​​seat installed under the reactor cover, the snap-fit ​​seat being adapted to a limiting groove, and a second spring being provided inside the snap-fit ​​seat, with a rotating plate connected to the second spring.

[0012] Preferably, the middle section of the rotating plate is rotatably connected inside the snap-fit ​​seat, and the other end of the rotating plate is connected to a snap-fit ​​post through a rotating plate, the snap-fit ​​post being adapted to the snap-fit ​​groove.

[0013] Preferably, the card holder is provided with an auxiliary component, the auxiliary component including a pressure rod installed on the card holder, and a pressing plate connected to the top of the pressure rod.

[0014] Preferably, a pressing column is connected to the pressing plate, and the pressing plate is connected to the upper surface of the reactor cover by a third spring.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This microchannel reactor for chemical and pharmaceutical applications connects the end of the reaction pipeline to an external pipeline via a conveying connector. A monitoring valve is installed on the external pipeline for convenient monitoring, reducing the inefficiency caused by manual inspection. The conveying connector enables stable pressure delivery of raw materials to the reaction pipeline, ensuring the stability of reaction conditions within the pipeline and reducing the occurrence of side reactions. The specific details are as follows: The reaction pipeline is connected to an external pipeline via a conveying joint. A monitoring valve is installed on the external pipeline, which reduces the inefficiency caused by manual inspection. The conveying joint enables the stable pressure delivery of raw materials to the reaction pipeline, ensuring the stability of the reaction conditions inside the pipeline and preventing the reaction parameters from going out of control due to fluctuations in raw material pressure. The microchannel structure inside the reaction pipeline significantly increases the specific surface area of ​​the raw material contact and shortens the mass and heat transfer distance. This not only reduces the waste of unreacted raw materials but also lowers the load and cost of subsequent separation and purification processes. At the same time, because the reaction conditions are easy to control, the generation of by-products is reduced, further ensuring product purity. The moving plate, moving rod, and first spring of the conveying joint form a pressure stabilizing and buffering structure. When the raw material is fed in, the moving plate is pushed to move and the spring is compressed. The spring force and the raw material pressure form a dynamic balance, avoiding unstable flow caused by pressure fluctuations, and realizing the stable pressure conveying of raw materials to the reaction pipeline. The internal support plate of the reactor body reduces the frequency of replacement and maintenance costs. The PTFE anti-corrosion layer on the surface of the support plate can prevent damage to the support plate, while the insulation layer below reduces heat loss, maintains stable internal temperature of the equipment, reduces wear and tear on equipment components caused by sudden temperature changes, and comprehensively ensures long-term stable operation of the equipment. The cooperation between the support base and the snap-fit ​​base allows the reactor cover to be precisely aligned along the limiting groove when it is fastened, simplifying the installation operation and reducing the difficulty of the operator's work. The snap-fit ​​column is driven out of the snap-fit ​​groove by the pressing plate and the pressure rod, which greatly shortens the overall disassembly time of the cover and reduces the production downtime. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the reactor body of this utility model; Figure 3 This is a schematic diagram of the connection structure between the reaction pipeline and the conveying joint of this utility model; Figure 4 This is a cross-sectional structural diagram of the reaction pipeline and conveying joint of this utility model; Figure 5 This is a schematic diagram of the hierarchical structure of the reactor body of this utility model; Figure 6This is a schematic diagram of the reactor cover of this utility model after it is opened; Figure 7 This is a cross-sectional schematic diagram of the snap-fit ​​connector of this utility model.

[0017] In the diagram: 1. Reactor body; 2. Reactor cover; 3. Reaction pipe; 4. Conveying connector; 5. Moving plate; 6. Moving rod; 7. First spring; 8. Through groove; 9. Support plate; 10. Anti-corrosion layer; 11. Insulation layer; 12. Support base; 13. Snap-fit ​​groove; 14. Snap-fit ​​base; 15. Second spring; 16. Rotating plate; 17. Rotating piece; 18. Snap-fit ​​column; 19. Pressure rod; 20. Pressing plate; 21. Pressing column; 22. Third spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: In this example, the conveying joint 4 achieves stable pressure conveying of raw materials to the reaction pipeline 3, ensuring the stability of reaction conditions within the reaction pipeline 3, avoiding uncontrolled reaction parameters due to raw material pressure fluctuations, and reducing the occurrence of side reactions, such as... Figures 1-4The technical solution shown includes a reactor body 1 with a reactor cover 2. A reaction assembly is installed inside the reactor body 1, including a reaction pipe 3 installed inside the reactor body 1. A conveying connector 4 is installed at the end of the reaction pipe 3, and a baffle is installed inside the conveying connector 4 with a through groove 8. A moving rod 6 is connected through the conveying connector 4 and passes through the baffle. A moving plate 5 is connected to the end of the moving rod 6, and a first spring 7 is sleeved on the outside of the moving rod 6. The reactor cover 2 is fastened to the top of the reactor body 1, forming a closed reaction environment, effectively reducing the risk of raw material waste and safety accidents due to leakage. The reaction pipe 3 has microchannels inside, which can significantly shorten the mass and heat transfer distance when chemical and pharmaceutical raw materials flow within the reaction pipe 3, improving the reaction conversion rate. The end of the reaction pipe 3 is connected to an external pipe via the conveying connector 4, and a monitoring valve is installed on the external pipe. This design facilitates monitoring and reduces the inefficiency caused by manual inspection. The raw material is connected to the conveying connector 4 through an external pipeline. It first contacts the moving plate 5, pushing the moving plate 5 towards the reaction pipeline 3. Simultaneously, the moving rod 6 connected to the moving plate 5 compresses the first spring 7. During the movement of the moving plate 5, the baffle inside the conveying connector 4 acts as a limit, and the through groove 8 on the baffle facilitates the flow of raw materials. When the moving plate 5 moves, the raw material can smoothly enter the reaction pipeline 3 through the through groove 8. When the raw material is not introduced, the first spring 7 can easily push the moving rod 6 to reset the moving plate 5. This not only achieves stable pressure delivery of raw materials to the reaction pipeline 3, ensuring the stability of the reaction conditions in the reaction pipeline 3, avoiding the loss of control of reaction parameters due to raw material pressure fluctuations, and reducing the occurrence of side reactions, but also, by placing the conveying connector 4 at the output end of the reaction pipeline 3, it can achieve the backflow prevention function, preventing the reverse flow of materials after the reaction from contaminating the raw materials, further ensuring the continuity and safety of the reaction process. Example 2: In this example, the support plate 9 inside the reactor body 1 ensures the stability of the reaction pipe 3 during long-term use through its own rigidity, preventing a decrease in reaction efficiency or material blockage caused by deformation of the reaction pipe 3, thus extending the service life of the reaction pipe 3. Specifically, as follows... Figure 2 and Figure 5As shown, the reactor body 1 includes internally arranged hierarchical components, including a support plate 9 installed inside the reactor body 1. The upper surface of the support plate 9 is provided with an anti-corrosion layer 10, and a heat insulation layer 11 is provided below the support plate 9. The support plate 9 inside the reactor body 1 ensures the stability of the reaction pipeline 3 during long-term use through its own rigidity, preventing a decrease in reaction efficiency or material blockage caused by deformation of the reaction pipeline 3, extending the service life of the reaction pipeline 3, and reducing equipment maintenance frequency and costs. The anti-corrosion layer 10, made of polytetrafluoroethylene, covers the upper surface of the support plate 9 and prevents the support plate 9 from being corroded and damaged, reducing replacement costs due to corrosion and ensuring long-term stable operation of the equipment. The heat insulation layer 11, made of insulation cotton, is located below the support plate 9. The insulation layer 11 prevents rapid heat loss and prevents reaction stagnation due to excessively low local temperatures, ensuring precise and controllable reaction temperature. The insulation cotton material has good insulation effect and low cost, reducing the energy consumption of the temperature control system while maintaining a stable reaction environment temperature, further improving reaction conversion rate and product consistency.

[0020] Example 3: In this example, the snap-fit ​​assembly facilitates quick and easy unlocking of the reactor body 1 and reactor cover 2 without the need for additional tools. A single person can complete the unlocking operation, significantly improving equipment maintenance efficiency and reducing production downtime. Specifically, as follows... Figure 2 , Figure 6 and Figure 7As shown, a storage groove is installed on the upper surface of the reactor body 1, and a support base 12 is provided inside the storage groove. The support base 12 is located at the four corners of the upper surface of the reactor body 1. The support base 12 has a limiting groove and a snap-fit ​​groove 13 inside, and the limiting groove and the snap-fit ​​groove 13 are connected. A snap-fit ​​assembly is provided on the reactor cover 2. The snap-fit ​​assembly includes a snap-fit ​​seat 14 installed under the reactor cover 2. The snap-fit ​​seat 14 is adapted to the limiting groove. A second spring 15 is provided inside the snap-fit ​​seat 14. A rotating plate 16 is connected to the second spring 15. The middle section of the rotating plate 16 is rotatably connected to the snap-fit ​​seat 14. Inside, the other end of the rotating plate 16 is connected to a snap-fit ​​post 18 via a rotating piece 17. The snap-fit ​​post 18 is adapted to the snap-fit ​​groove 13. An auxiliary component is provided on the snap-fit ​​seat 14. The auxiliary component includes a pressure rod 19 installed on the snap-fit ​​seat 14. A pressing plate 20 is connected to the top of the pressure rod 19. A pressing post 21 is connected to the pressing plate 20. The pressing plate 20 is connected to the upper surface of the reactor cover 2 via a third spring 22. The support base 12 is fixed to the four corners of the upper surface of the reactor body 1. When the reactor cover 2 is fastened, the snap-fit ​​seat 14 under the cover can be inserted along the limiting groove to ensure that the reactor cover 2 is fastened. Precise alignment with reactor body 1 simplifies the cover installation operation and reduces the difficulty of operation. When it is necessary to open reactor cover 2 for maintenance, the locking mechanism needs to be released through the auxiliary component. The operator presses down on the pressing column 21, which simultaneously moves the pressing plate 20 downward. The pressing plate 20 presses the four pressure rods 19 at the four corners. At this time, the third spring 22 under the pressing plate 20 is compressed. The pressure rods 19 transmit the pressure to the end of the rotating plate 16 inside the locking seat 14. The second spring 15 at the bottom of the rotating plate 16 is compressed, and the rotating plate 16 pushes the rotating plate 1. 7. The rotating plate 17 moves and drives the locking post 18 out of the locking groove 13 of the support base 12, thereby releasing the lock between the reactor body 1 and the reactor cover 2. No additional tools are needed, and a single person can complete the unlocking operation, which greatly improves the equipment maintenance efficiency and reduces production downtime. After releasing the pressing plate 20, the third spring 22 releases potential energy and pushes the structure to reset, which facilitates quick installation later. The reset function does not require manual adjustment, which improves the reuse efficiency of the equipment. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A microchannel reactor for chemical-pharmaceutical industry, comprising a reactor body (1) provided with, The reactor body (1) is provided with a reactor cover (2). A reaction assembly is installed inside the reactor body (1). The reaction assembly includes a reaction pipe (3) installed inside the reactor body (1). A conveying connector (4) is installed at the end of the reaction pipe (3). A baffle is installed inside the conveying connector (4), and a through groove (8) is opened on the baffle. A moving rod (6) is connected through the inside of the conveying connector (4). The moving rod (6) is installed through the inside of the baffle. A moving plate (5) is connected at the end of the moving rod (6). A first spring (7) is sleeved on the outside of the moving rod (6).

2. A microchannel reactor for chemical and pharmaceutical processes according to claim 1, characterized in that: The reactor body (1) includes an internally arranged hierarchical assembly, the hierarchical assembly including a support plate (9) installed inside the reactor body (1), the upper surface of the support plate (9) is provided with an anti-corrosion layer (10), and the lower surface of the support plate (9) is provided with a heat insulation layer (11).

3. A microchannel reactor for chemical and pharmaceutical processes according to claim 1, characterized in that: The reactor body (1) has a storage trough installed on its upper surface, and a support base (12) is provided inside the storage trough. The support base (12) is located at the four corners of the upper surface of the reactor body (1).

4. A microchannel reactor for chemical and pharmaceutical processes according to claim 3, characterized in that: The support base (12) has a limiting groove and a snap-fit ​​groove (13) inside, and the limiting groove and the snap-fit ​​groove (13) are connected.

5. A microchannel reactor for chemical and pharmaceutical processes according to claim 1, characterized in that: The reactor cover (2) is provided with a snap-fit ​​assembly, which includes a snap-fit ​​seat (14) installed under the reactor cover (2). The snap-fit ​​seat (14) is adapted to the limiting groove. A second spring (15) is provided inside the snap-fit ​​seat (14), and a rotating plate (16) is connected to the second spring (15).

6. A microchannel reactor for chemical and pharmaceutical applications according to claim 5, characterized in that: The middle section of the rotating plate (16) is rotatably connected inside the snap-fit ​​seat (14), and the other end of the rotating plate (16) is connected to the snap-fit ​​post (18) through the rotating piece (17). The snap-fit ​​post (18) is adapted to the snap-fit ​​groove (13).

7. A microchannel reactor for chemical and pharmaceutical applications according to claim 6, characterized in that: An auxiliary component is provided on the card holder (14), the auxiliary component including a pressure rod (19) installed on the card holder (14), and a pressing plate (20) is connected to the top of the pressure rod (19).

8. A microchannel reactor for chemical and pharmaceutical applications according to claim 7, characterized in that: The pressing plate (20) is connected to a pressing column (21), and the pressing plate (20) is connected to the upper surface of the reactor cover (2) by a third spring (22).

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