A self-cleaning scraping device for electrode surfaces of an electrochemical microreactor

Abstract

This utility model relates to the field of electrochemical microreactor technology and discloses a self-cleaning scraping device for the electrode surface of an electrochemical microreactor. It includes a rectangular reaction box with an electrode plate centrally located inside. Rectangular recovery covers protruding outwards are provided on both sides of the reaction box. A rectangular micro-reaction pressure plate is snapped into the interior of each rectangular recovery cover. A stepping cylinder is installed at the center of the outer end face of each rectangular recovery cover to move the micro-reaction pressure plate towards the center and press it against the electrode plate surface. Scraping components are provided on both sides of the electrode plate at the top of the reaction box. A reciprocating drive component is provided inside the front wall of the reaction box to drive the scraping components up and down to scrape off the deposits on the electrode plate. This electrochemical microreactor, through its innovatively designed self-cleaning scraping device, achieves efficient and automatic cleaning of the electrode surface, significantly improving the electrode's lifespan and the stability of the reaction.

Description

Technical Field

[0001] This utility model relates to the field of chemical microreactor technology, specifically to a self-cleaning scraping device for the electrode surface of an electrochemical microreactor. Background Technology

[0002] Electrochemical microreactors, as integrated and highly efficient chemical reaction platforms, are widely used in electrochemical synthesis, environmental remediation, biosensing, and energy conversion due to their small size, high reaction efficiency, and excellent mass and heat transfer performance. Microreactors achieve precise control and rapid reaction of reactants through micron-level channels, significantly improving the selectivity and yield of electrochemical reactions and driving the innovative development of modern chemical reaction technologies.

[0003] However, during actual operation, electrochemical microreactors are prone to contamination of electrode surfaces due to reaction byproducts, electrolyte deposition, and impurity adhesion. This leads to reduced electrode activity, decreased reaction efficiency, and in severe cases, channel blockage, affecting the continuity and stability of the reaction. Traditional electrochemical microreactors rely heavily on manual periodic disassembly for electrode surface cleaning and maintenance. This not only increases operational complexity and labor intensity but also results in long downtime, incomplete cleaning, and poor repeatability. Misoperation during manual cleaning can also damage the electrode surface, shorten electrode lifespan, and reduce overall equipment performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a self-cleaning scraping device for the electrode surface of an electrochemical microreactor, thereby solving the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning scraping device for the electrode surface of an electrochemical microreactor, comprising a rectangular reaction box, an electrode plate disposed at the center of the reaction box, rectangular recovery covers protruding outwards on both sides of the reaction box, a rectangular micro-reaction pressure plate being snapped into the interior of each rectangular recovery cover, a stepping cylinder being installed at the center of the outer end face of each rectangular recovery cover to drive the micro-reaction pressure plate to move towards the center and press it against the surface of the electrode plate, a scraping component being disposed at the top of the reaction box on both sides of the electrode plate, and a reciprocating drive component being disposed inside the front side wall of the reaction box to drive the scraping components on both sides to move up and down to scrape off the deposits on the electrode plate.

[0008] Preferably, the contact surface between the micro-reaction plate and the electrode plate is provided with serpentine micro-reaction channels. When the micro-reaction plate is pressed against the electrode plate, the micro-reaction channels and the contact surface of the electrode plate together close to form a serpentine micro-reaction channel. The non-contact surface of the micro-reaction plate is provided with an inlet pipe and an outlet pipe. One end of the inlet pipe and the outlet pipe slides out of the rectangular recovery hood.

[0009] Preferably, one end of the inlet pipe and the outlet pipe are connected to the beginning and end of the micro-reaction channel, respectively.

[0010] Preferably, the scraping assembly includes a longitudinal beam and scrapers distributed on the inner end face of the longitudinal beam, with the inner edge of the scrapers closely attached to the surface of the electrode plate.

[0011] Preferably, the contact surface between the scraper and the electrode plate is configured as a forked shape, and the forked ends are inclined and attached to the surface of the electrode plate.

[0012] Preferably, the reciprocating drive includes a drive screw rotatably mounted inside a vertical mounting slot provided on the front side of the reaction box, and a screw sleeve threaded onto the drive screw. The outer wall of the screw sleeve is connected to the front end of the scraping components on both sides. A drive motor for driving the drive screw to rotate is installed on the top of the front end of the reaction box. The drive motor is a forward and reverse geared motor.

[0013] Preferably, a vertically distributed guide rail is provided on the rear wall inside the reaction box, and a guide component is installed inside the guide rail to cooperate with the scraping components on both sides to slide up and down.

[0014] Preferably, the guide assembly includes a guide rod installed inside the guide rail and a guide sleeve slidably sleeved on the guide rod, with the outer wall of the guide sleeve connected to the rear ends of the two scraping assemblies.

[0015] Compared with the prior art, this utility model provides a self-cleaning scraping device for the electrode surface of an electrochemical microreactor, which has the following beneficial effects:

[0016] This electrochemical microreactor achieves highly efficient and automated cleaning of the electrode surface through an innovatively designed self-cleaning scraping device, significantly improving electrode lifespan and reaction stability. Simultaneously, the dual-sided independent microreaction channel design greatly enhances experimental throughput and flexibility, meeting diverse research and industrial microreaction needs. A sophisticated guiding and driving mechanism ensures smooth and efficient scraping, reducing equipment failure rates and improving overall system reliability and automation. This device not only optimizes fluid control and reaction efficiency in the microreaction process but also reduces manual maintenance workload and downtime through its self-cleaning function, demonstrating significant application value and broad market prospects. Future development can further integrate intelligent control technology to achieve more precise reaction parameter adjustment and status monitoring, driving continuous innovation and development in electrochemical microreaction technology. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the half-section structure of this utility model;

[0019] Figure 3 This is a schematic diagram showing the distribution of the reciprocating drive components of this utility model;

[0020] Figure 4 This is a schematic diagram showing the distribution of the guide components of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the micro-reaction pressure plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the scraping component of this utility model;

[0023] Figure 7 This is a schematic diagram of the reciprocating drive component of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the guide component of this utility model.

[0025] The components include: 1. Reaction box; 2. Electrode plate; 3. Rectangular recovery hood; 4. Micro-reaction pressure plate; 5. Stepping cylinder; 6. Scraping assembly; 7. Reciprocating drive component; 8. Guide assembly.

[0026] 11. Vertical mounting slot; 12. Guide rail;

[0027] 41. Microreactor channel; 42. Inlet pipe; 43. Outlet pipe;

[0028] 61. Longitudinal beam; 62. Scraper;

[0029] 71. Drive screw; 72. Screw sleeve; 73. Drive motor;

[0030] 81. Guide rod; 82. Guide sleeve. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0032] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

[0034] Please see Figure 1-8 A self-cleaning scraping device for the electrode surface of an electrochemical microreactor is disclosed. The device includes a rectangular reaction chamber 1. An electrode plate 2 is disposed at the center of the reaction chamber 1. The electrode plate 2 is a key component for the electrochemical reaction, and its surface is used for the occurrence of the electrochemical reaction.

[0035] Both ends of the reaction chamber 1 protrude outwards and are equipped with rectangular recovery covers 3. Rectangular micro-reaction plates 4 are snapped into the recovery covers 3, allowing the device to perform the same or different micro-reaction experiments simultaneously on both sides. The contact surfaces of the micro-reaction plates 4 and electrode plates 2 are provided with serpentine micro-reaction channels 41. When the micro-reaction plates 4 are pressed against the surface of the electrode plates 2, the micro-reaction channels 41 and the contact surfaces of the electrode plates 2 close together to form a serpentine micro-reaction channel. The non-contact surfaces of the micro-reaction plates 4 are provided with an inlet pipe 42 and an outlet pipe 43. The inner ends of both are connected to the beginning and end of the micro-reaction channels 41, respectively, while the outer ends slide out of the rectangular recovery covers 3 for the circulation of the reaction liquid.

[0036] Scraping components 6 are respectively provided on both sides of the top electrode plate 2 inside the reaction box 1. Each scraping component 6 includes a longitudinal beam 61, and multiple scrapers 62 are distributed on the inner end face of the longitudinal beam 61. The scraper 62 is in close contact with the electrode plate 2, and its contact surface is forked. The forked end is inclined to fit against the surface of the electrode plate 2. The forked design ensures that when the entire scraper 62 slides up and down, one fork can scrape off the deposits on the surface of the electrode plate 2.

[0037] The front wall of the reaction chamber 1 is equipped with a reciprocating drive component 7, which includes a drive screw 71 rotatably mounted in the vertical mounting groove 11 on the front side. A screw sleeve 72 is sleeved on the screw, and the outer wall of the screw sleeve 72 is connected to the front end of the scraping components 6 on both sides. The drive screw 71 is driven by a drive motor 73 installed at the top of the front end of the reaction chamber 1. The drive motor 73 is a forward and reverse geared motor, which can drive the scraping components 6 to move up and down reciprocally to scrape off the deposits on the surface of the electrode plate 2.

[0038] The rear wall inside the reaction box 1 is provided with a vertically distributed guide rail 12. A guide component 8 is installed inside the guide rail 12. The guide component 8 includes a guide rod 81 and a guide sleeve 82 that is slidably sleeved on the guide rod 81. The outer wall of the guide sleeve 82 is connected to the rear end of the scraping components 6 on both sides, so as to ensure that the scraping components 6 slide smoothly along the guide rail 12 during the up and down movement, avoid lateral swinging, and improve the stability and efficiency of scraping.

[0039] In addition, a stepping cylinder 5 is installed at the center of the outer end face of the rectangular recovery cover 3. When an experimental reaction is required, it is used to drive the micro-reaction plate 4 to move towards the center and press it against the surface of the electrode plate 2, ensuring that the micro-reaction channel 41 and the contact surface of the electrode plate 2 are tightly closed, forming a stable micro-reaction channel.

[0040] The electrochemical microreactor operates by first having a stepper cylinder 5 drive the microreaction plate 4 to move towards the center, pressing it firmly against the surface of the electrode plate 2. This ensures that the serpentine microreaction channels 41 are tightly closed with the contact surfaces of the electrode plate 2, forming a stable serpentine microreaction channel. The reaction liquid enters the microreaction channel 41 through the inlet pipe 42, undergoes an electrochemical reaction on the surface of the electrode plate 2, and is then discharged through the outlet pipe 43, achieving a circulating flow of the reaction liquid. During the reaction, the microreaction plates 4 on both sides of the reaction chamber 1 can simultaneously perform the same or different microreaction experiments, improving experimental efficiency.

[0041] After the reaction is completed, the stepping cylinders 5 on both sides are activated to drive the micro-reaction pressure plates 4 on both sides to be retracted into the rectangular recovery hoods 3 on both sides. Then, the drive motor 73 is started, which drives the drive screw 71 to drive the screw sleeve 72 and the scraping components 6 on both sides to move up and down reciprocally, continuously and effectively scraping off the deposits on the surface of the electrode plate 2. Then, the impurities can be removed by injecting water into the reaction box 1 and then discharging it.

[0042] The upper and lower ends of the reaction box 1 can be equipped with valves for the entry and exit of cleaning liquid. This application only describes the scraping structure, which is not described in detail, but it is not that it is not designed.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-cleaning scraping device for the electrode surface of an electrochemical microreactor, comprising a rectangular reaction chamber (1), characterized in that: An electrode plate (2) is provided at the center inside the reaction box (1). A rectangular recovery cover (3) protruding outward is provided on both sides of the reaction box (1). A rectangular micro-reaction pressure plate (4) is snapped into the inside of both rectangular recovery covers (3). A stepping cylinder (5) is installed at the center of the outer end face of both rectangular recovery covers (3) to drive the micro-reaction pressure plate (4) to move towards the center and press it against the surface of the electrode plate (2). A scraping component (6) is provided at the top of the reaction box (1) on both sides of the electrode plate (2). A reciprocating drive component (7) is provided inside the front side wall of the reaction box (1) to drive the scraping components (6) on both sides to move up and down to scrape off the deposits on the electrode plate (2).

2. The self-cleaning scraping device for the electrode surface of an electrochemical microreactor according to claim 1, characterized in that: The micro-reaction pressure plate (4) and the electrode plate (2) are provided with serpentine micro-reaction channels (41). When the micro-reaction pressure plate (4) is pressed against the electrode plate (2), the micro-reaction channels (41) and the electrode plate (2) are closed together to form a serpentine micro-reaction channel. The non-contact surface of the micro-reaction pressure plate (4) is provided with an inlet pipe (42) and an outlet pipe (43). The outer ends of the inlet pipe (42) and the outlet pipe (43) slide out of the rectangular recovery cover (3).

3. The self-cleaning scraping device for the electrode surface of an electrochemical microreactor according to claim 2, characterized in that: One end of the liquid inlet pipe (42) and the liquid outlet pipe (43) are respectively connected to the beginning and end of the micro-reaction channel (41).

4. The self-cleaning scraping device for the electrode surface of an electrochemical microreactor according to claim 1, characterized in that: The scraping assembly (6) includes a longitudinal beam (61) and scrapers (62) distributed on the inner end face of the longitudinal beam (61), with the inner edge of the scrapers (62) closely attached to the surface of the electrode plate (2).

5. The self-cleaning scraping device for the electrode surface of an electrochemical microreactor according to claim 4, characterized in that: The contact surface between the scraper (62) and the electrode plate (2) is configured as a fork, and the forked ends are inclined and attached to the surface of the electrode plate (2).

6. The self-cleaning scraping device for the electrode surface of an electrochemical microreactor according to claim 1, characterized in that: The reciprocating drive component (7) includes a drive screw (71) rotatably mounted inside a vertical mounting groove (11) provided on the front side of the reaction box (1), and a screw sleeve (72) threaded onto the drive screw (71). The outer wall of the screw sleeve (72) is connected to the front end of the scraping components (6) on both sides. A drive motor (73) for driving the drive screw (71) to rotate is installed on the top of the front end of the reaction box (1). The drive motor (73) is a forward and reverse geared motor.

7. The self-cleaning scraping device for the electrode surface of an electrochemical microreactor according to claim 1, characterized in that: The reaction box (1) has a vertically distributed guide rail (12) on the rear side wall inside. The guide rail (12) is equipped with a guide component (8) that slides up and down in coordination with the scraping components (6) on both sides.

8. The self-cleaning scraping device for the electrode surface of an electrochemical microreactor according to claim 7, characterized in that: The guide assembly (8) includes a guide rod (81) installed inside the guide rail (12) and a guide sleeve (82) slidably sleeved on the guide rod (81). The outer wall of the guide sleeve (82) is connected to the rear end of the scraping assemblies (6) on both sides.

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