Micro packed bed hydrogenation reactor
Patent Information
- Application Number
- CN202522470768.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-21
AI Technical Summary
[0004]在现有技术中，微填充床制氢反应器一般由前端板、后端板以及微孔板一般采用对齐方式对接，在对接过程中，容易出现反应孔相互错位的情况，出现微孔通道不连续现象，导致影响制氢效率的问题
1、通过设置对接机构，对接机构的设计可以保证反应孔一一对齐，避免了反应孔出现错位不连续的情况，保证了制氢效率。
Smart Images
Figure CN224854203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of micro-packed bed hydrogenation reactors, specifically a micro-packed bed hydrogenation reactor. Background Technology
[0002] The micro-packed bed hydrogen production reactor relies on internal micropores filled with catalyst. As the feedstock flows through the micropores, it comes into full contact with the catalyst, thereby achieving the purpose of hydrogen production.
[0003] A micro-filled bed hydrogenation reactor is a reaction device in which fine catalyst particles (typically tens to hundreds of micrometers) are tightly packed in channels or chambers with micrometer or millimeter-scale characteristic dimensions. The reactants (liquid phase) and hydrogen (gas phase) flow through this micro-filled bed in parallel or countercurrent under high pressure, and a highly efficient multiphase (gas-liquid-solid) hydrogenation reaction takes place on the catalyst surface.
[0004] In existing technologies, micro-filled bed hydrogen production reactors typically consist of a front-end plate, a rear-end plate, and a microporous plate, which are usually aligned and connected. During the connection process, the reaction pores are prone to misalignment, resulting in discontinuous microporous channels and affecting hydrogen production efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a micro-packed bed hydrogenation reactor in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a micro-filled bed hydrogenation reactor, comprising a front end plate and a rear end plate, wherein multiple microporous plates are stacked between the front end plate and the rear end plate, and reaction holes are formed inside the front end plate, the rear end plate, and the microporous plates. A docking mechanism is provided on the docking surfaces of the front end plate, the rear end plate, the microporous plates, and adjacent microporous plates. The four corners of the front end plate, the rear end plate, and the microporous plates are connected by a fixing mechanism. A heat dissipation mechanism that is offset from the reaction holes is provided inside the microporous plate.
[0007] As a further embodiment of this utility model: the fixing mechanism includes insertion holes opened at the four corners of the front end plate, the rear end plate, and the micro-perforated plate. A fixing rod is inserted into the inner wall of the insertion hole, and external threads are formed at both ends of the outer wall of the fixing rod. The fixing rod is connected to the locking bolt through the external threads.
[0008] As a further embodiment of this utility model: the docking mechanism includes a first docking ring and a second docking ring integrally formed on the back end face of the front end plate and the back end face of multiple microporous plates. The first docking ring is aligned with the insertion holes on the front end plate and the microporous plates, and the second docking ring is aligned with the reaction holes on the front end plate and the microporous plates.
[0009] As a further embodiment of this utility model: the docking mechanism further includes a second docking hole and a first docking hole formed on the front end face of the rear end plate and the front end face of the microporous plate. The first docking hole is aligned with the insertion hole on the front end plate and the microporous plate, and the second docking hole is aligned with the reaction hole on the reaction hole. The inner diameter of the first docking hole matches the outer diameter of the first docking ring, and the inner diameter of the second docking hole matches the outer diameter of the second docking ring.
[0010] As a further embodiment of this utility model: the heat dissipation mechanism includes a plurality of intermediate heat dissipation holes opened inside the microporous plate, and end heat dissipation holes located at the top and bottom inside the microporous plate, with the two end heat dissipation holes distributed in a vertically symmetrical manner.
[0011] As a further embodiment of this utility model: the front end face of the rear end plate and the front end face of the microporous plate are both provided with mounting grooves, the inner wall of the mounting groove is fitted with a sealing strip, and the rear end face of the front end plate and the rear end face of the microporous plate are both integrally formed with an extrusion ring that mates with the mounting groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a docking mechanism, the design of the docking mechanism can ensure that the reaction holes are aligned one by one, avoiding misalignment and discontinuity of the reaction holes, and ensuring hydrogen production efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the unfolded state of this utility model; Figure 3 This is a schematic diagram showing another perspective of the present invention; Figure 4 This is a schematic diagram of the installation of the sealing ring of this utility model; Figure 5 This is a schematic diagram of the extrusion ring of this utility model; Figure 6 This is a schematic diagram of the heat dissipation mechanism of this utility model.
[0014] In the diagram: 1. Front end plate; 2. Rear end plate; 3. Microporous plate; 4. Fixing rod; 5. Locking bolt; 6. Reaction hole; 7. Insertion hole; 8. Middle heat dissipation hole; 9. Mounting groove; 10. Extrusion ring; 11. No. 1 docking ring; 12. No. 2 docking ring; 13. End heat dissipation hole; 14. Sealing strip; 15. No. 2 docking hole; 16. No. 1 docking hole. Detailed Implementation
[0015] 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.
[0016] Please see Figures 1-6 In this embodiment of the present invention, a micro-filled bed hydrogenation reactor includes a front end plate 1 and a rear end plate 2. Multiple microporous plates 3 are stacked between the front end plate 1 and the rear end plate 2. Reaction holes 6 are opened inside the front end plate 1, the rear end plate 2, and the microporous plates 3. A docking mechanism is provided on the docking surfaces of the front end plate 1, the rear end plate 2, the microporous plates 3, and adjacent microporous plates 3. The four corners of the front end plate 1, the rear end plate 2, and the microporous plates 3 are connected by a fixing mechanism. A heat dissipation mechanism that is offset from the reaction holes 6 is provided inside the microporous plates 3. The front end face of the rear end plate 2 and the front end face of the microporous plates 3 are both provided with mounting grooves 9. A sealing strip 14 is attached to the inner wall of the mounting groove 9. The rear end face of the front end plate 1 and the rear end face of the microporous plates 3 are both integrally formed with extrusion rings 10 that dock with the mounting grooves 9.
[0017] In this embodiment: First, during assembly, multiple microporous plates 3 are stacked and connected between the front end plate 1 and the rear end plate 2 through a docking mechanism. Then, a fixing mechanism is used to connect and fix the stacked front end plate 1, rear end plate 2 and multiple microporous plates 3. After fixing, the extrusion rings 10 on the docking surfaces of the front end plate 1, rear end plate 2 and microporous plates 3 are pressed into the corresponding mounting grooves 9. At this time, the sealing strip 14 is squeezed and deformed, improving the sealing performance on the docking surface. After the device is assembled, gaseous feedstock (such as methane) is introduced into reaction hole 6. Since reaction hole 6 is filled with hydrogen production catalyst (such as nickel, platinum, palladium-based catalyst), continuous hydrogen production is achieved. During the catalytic process, when heat is released during the catalytic hydrogen production of methane, the heat generated during the hydrogen production process can be discharged through the heat dissipation mechanism by inputting cooling water.
[0018] Please refer to this carefully. Figure 1 and Figure 2 The fixing mechanism includes insertion holes 7 at the four corners of the front plate 1, the rear plate 2, and the micro-perforated plate 3. A fixing rod 4 is inserted into the inner wall of the insertion hole 7. The two ends of the outer wall of the fixing rod 4 are formed with external threads. The fixing rod 4 is connected to the locking bolt 5 through the external threads.
[0019] In this embodiment: after the front end plate 1, the rear end plate 2 and the multiple micro-perforated plates 3 are connected, the fixing rod 4 is inserted into the multiple aligned insertion holes 7. After the insertion is completed, the locking bolt 5 is connected to the external threads at both ends of the outer wall of the fixing rod 4. After the connection is completed, it is effectively tightened to connect the front end plate 1, the rear end plate 2 and the multiple micro-perforated plates 3.
[0020] Please refer to this carefully. Figure 4 and Figure 5 The docking mechanism includes a first docking ring 11 and a second docking ring 12 integrally formed on the back end face of the front end plate 1 and the back end face of multiple microporous plates 3. The first docking ring 11 is aligned with the insertion holes 7 on the front end plate 1 and the microporous plates 3, and the second docking ring 12 is aligned with the reaction holes 6 on the front end plate 1 and the microporous plates 3. The docking mechanism also includes a second docking hole 15 and a first docking hole 16 opened on the front end face of the rear end plate 2 and the front end face of the microporous plates 3. The first docking hole 16 is aligned with the insertion holes 7 on the front end plate 1 and the microporous plates 3, and the second docking hole 15 is aligned with the reaction holes 6 on the reaction holes 6. The inner diameter of the first docking hole 16 matches the outer diameter of the first docking ring 11, and the inner diameter of the second docking hole 15 matches the outer diameter of the second docking ring 12.
[0021] In this embodiment: when the front end plate 1, the rear end plate 2 and the microporous plate 3 are connected one by one, the first docking ring 11 and the second docking ring 12 on the front end plate 1 are connected to the first docking hole 16 and the second docking hole 15 on the microporous plate 3, thus forming a mutual insertion effect. This avoids misalignment of the front end plate 1 and the microporous plate 3 during splicing and ensures that the reaction holes 6 are aligned with each other. Similarly, after the adjacent microporous plates 3 and the rear end plate 2 are spliced one by one, and the protruding docking rings and docking holes are inserted, it can prevent the generated hydrogen from leaking outward from the microporous plate 3 into the gap between the microporous plate 3 and the front end plate 1 and the rear end plate 2.
[0022] Please refer to this carefully. Figure 6 The heat dissipation mechanism includes multiple intermediate heat dissipation holes 8 opened inside the microporous plate 3, and end heat dissipation holes 13 located at the top and bottom inside the microporous plate 3. The two end heat dissipation holes 13 are distributed symmetrically in the upper and lower positions.
[0023] In this embodiment: During the hydrogen production process, cooling water is introduced into the end heat dissipation hole 13 and the middle heat dissipation hole 8. The cooling water flows in from one end of the end heat dissipation hole 13 and the middle heat dissipation hole 8 and flows out from the other end. In this way, the heat generated by hydrogen production can be discharged to avoid overheating.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A micro-packed bed hydrogenation reactor, comprising a front end plate (1) and a rear end plate (2), characterized in that, Multiple microporous plates (3) are stacked between the front end plate (1) and the rear end plate (2). Reaction holes (6) are opened inside the front end plate (1), the rear end plate (2), and the microporous plates (3). A docking mechanism is provided on the docking surfaces of the front end plate (1), the rear end plate (2), the microporous plates (3), and the adjacent microporous plates (3). The four corners of the front end plate (1), the rear end plate (2), and the microporous plates (3) are connected by a fixing mechanism. A heat dissipation mechanism that is offset from the reaction holes (6) is provided inside the microporous plates (3).
2. The micro-packed bed hydrogenation reactor according to claim 1, characterized in that, The fixing mechanism includes insertion holes (7) at the four corners of the front end plate (1), the rear end plate (2), and the micro-perforated plate (3). A fixing rod (4) is inserted into the inner wall of the insertion hole (7). The two ends of the outer wall of the fixing rod (4) are formed with external threads. The fixing rod (4) is connected to the locking bolt (5) through the external threads.
3. The micro-packed bed hydrogenation reactor according to claim 2, characterized in that, The docking mechanism includes a first docking ring (11) and a second docking ring (12) integrally formed on the back end face of the front end plate (1) and the back end face of multiple microporous plates (3). The first docking ring (11) is aligned with the insertion hole (7) on the front end plate (1) and the microporous plate (3), and the second docking ring (12) is aligned with the reaction hole (6) on the front end plate (1) and the microporous plate (3).
4. A micro-packed bed hydrogenation reactor according to claim 3, characterized in that, The docking mechanism also includes a second docking hole (15) and a first docking hole (16) opened on the front end face of the rear end plate (2) and the front end face of the microporous plate (3). The first docking hole (16) is aligned with the insertion hole (7) on the front end plate (1) and the microporous plate (3). The second docking hole (15) is aligned with the reaction hole (6) on the reaction hole (6). The inner diameter of the first docking hole (16) matches the outer diameter of the first docking ring (11). The inner diameter of the second docking hole (15) matches the outer diameter of the second docking ring (12).
5. A micro-packed bed hydrogenation reactor according to claim 4, characterized in that, The heat dissipation mechanism includes multiple intermediate heat dissipation holes (8) opened inside the microporous plate (3), and end heat dissipation holes (13) located at the top and bottom inside the microporous plate (3). The two end heat dissipation holes (13) are distributed in a symmetrical manner.
6. A micro-packed bed hydrogenation reactor according to claim 5, characterized in that, The front end face of the rear end plate (2) and the front end face of the microporous plate (3) are both provided with mounting grooves (9). The inner wall of the mounting groove (9) is fitted with a sealing strip (14). The rear end face of the front end plate (1) and the rear end face of the microporous plate (3) are both integrally formed with an extrusion ring (10) that docks with the mounting groove (9).