A methanol reforming hydrogen production reactor
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-14
AI Technical Summary
多数装置的反应罐内部结构简单，多采用单一腔体设计，甲醇水蒸气与催化剂的接触不够充分，原料气在罐内流速快，停留时间短，部分甲醇水蒸气未完全参与反应就被排出，不仅降低了原料利用率，还增加了后续分离提纯的负担，另外，传统装置多通过罐壁外部加热或单一加热腔供热，热量传递效率低，罐内不同区域温度差异大，导致催化剂局部温度偏离最佳活性区间
在本实用新型中，多反应罐设计可提升制氢量，根据生产需求进行增减，且装配简便，同时，反应罐内环状分隔罩与螺旋板、网板隔板配合，能快速均匀供热，保障催化剂活性，大幅增加原料气与催化剂接触面积，减缓气流速度，提升原料利用率。
Smart Images
Figure CN224628950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydrogen production equipment, and in particular to a methanol reforming hydrogen production reactor. Background Technology
[0002] Methanol reforming for hydrogen production is a technology that uses methanol and water to react under specific conditions to produce hydrogen. With the rapid development of the hydrogen energy industry, methanol reforming for hydrogen production has become an important technology for distributed hydrogen production due to the characteristics of easy storage and transportation of raw materials and mild reaction conditions. The performance of the reaction device directly affects the hydrogen production efficiency and cost. Most reaction vessels have simple internal structures and often use a single-cavity design. The contact between methanol and water vapor and the catalyst is insufficient. The feed gas flows quickly and has a short residence time inside the vessel. Some methanol and water vapor are discharged before fully participating in the reaction, which not only reduces the utilization rate of the feed but also increases the burden on subsequent separation and purification. In addition, traditional vessels often rely on external heating of the vessel wall or a single heating chamber for heating, resulting in low heat transfer efficiency and large temperature differences in different areas inside the vessel. This causes the catalyst temperature to deviate from the optimal activity range in some areas. Utility Model Content
[0003] The purpose of this invention is to provide a methanol reforming hydrogen production reactor that can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A methanol reforming hydrogen production reactor includes multiple reaction tanks. A bottom plate is fixedly connected to the bottom of each reaction tank, and a top plate is fixedly connected to the top of each reaction tank. An inlet pipe is fixedly connected to the bottom of the bottom plate, and the multiple inlet pipes are fixedly connected to each other via steam transmission pipes. One end of each steam transmission pipe is fixedly connected to the output end of a vaporizer. A liquid inlet pipe is fixedly connected to one side of each reaction tank, and a liquid outlet pipe is fixedly connected to the other side of each reaction tank. Multiple partition covers are fixedly connected inside each reaction tank, and the multiple partition covers are arranged in a ring. A spiral plate is fixedly connected inside each partition cover.
[0005] As a further preferred embodiment of this utility model, the inlet pipe and the outlet pipe are arranged diagonally, and the outlet pipe is positioned at a lower height than the inlet pipe. Multiple inlet pipes are fixedly connected via heating medium input pipes, and multiple outlet pipes are fixedly connected via heating medium discharge pipes. One end of the heating medium input pipe is fixedly connected to the output end of an external heating medium circulation mechanism via a pipe, and one end of the heating medium discharge pipe is fixedly connected to the input end of the external heating medium circulation mechanism via a pipe. The heating medium input pipe, in conjunction with the heating medium discharge pipe, enables the circulation of the heating medium within the reaction vessel, thereby achieving continuous heating of the catalyst and ensuring that the catalyst remains within its active temperature range.
[0006] As a further preferred embodiment of this utility model, a first heating chamber is provided inside the reaction vessel, and a second heating chamber is provided inside the partition cover. The first heating chamber and the second heating chamber are connected, so that the catalyst between the partition cover and the spiral plate can be rapidly heated through the heating medium in the first heating chamber and the second heating chamber.
[0007] As a further preferred embodiment of this utility model, a heat-conducting groove is provided between two adjacent partition covers, which can increase the heating of methanol water vapor and the contact area with the catalyst.
[0008] As a further preferred embodiment of this utility model, multiple partitions are fixedly connected to the outer side of the spiral plate, and the spiral plate and partitions are mesh plates. A central column is fixedly connected to the center of the spiral plate, and a base frame is fixedly connected between the central column, the bottom of the partitions, and the partition cover. The base frame is lined with mesh plates, and the partitions are inserted into corresponding heat-conducting grooves. The arrangement of the spiral plate and partitions can increase the contact area between methanol water vapor and the catalyst, and improve the thermal conductivity of the catalyst and reduce the passage speed of methanol water vapor, thereby improving the quality of the catalytic reaction.
[0009] As a further preferred embodiment of this utility model, a steam exhaust pipe is fixedly connected to the top of the top plate, and the top of the steam exhaust pipe is fixedly connected to the inlet and outlet of the external separator.
[0010] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the multi-reaction tank design can increase hydrogen production capacity, which can be increased or decreased according to production needs, and the assembly is simple. At the same time, the annular partition cover inside the reaction tank, together with the spiral plate and mesh plate partition, can provide rapid and uniform heating, ensure catalyst activity, significantly increase the contact area between the raw material gas and the catalyst, slow down the airflow speed, and improve the utilization rate of raw materials. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the reaction vessel, bottom plate, and top plate of this utility model; Figure 3 This is a partial cross-sectional view of the reaction vessel of this utility model; Figure 4 This is a longitudinal sectional view of the reaction vessel of this utility model; Figure 5 This is a schematic diagram of the spiral plate structure of this utility model.
[0012] In the diagram: 1. Reaction vessel; 2. Bottom plate; 3. Top plate; 4. Inlet pipe; 5. Steam pipe; 6. Liquid inlet pipe; 7. Liquid outlet pipe; 8. Separator; 9. Spiral plate; 10. First heating chamber; 11. Second heating chamber; 12. Heat conduction groove; 13. Central column; 14. Baffle plate; 15. Base frame; 16. Exhaust pipe; 17. Heating medium input pipe; 18. Heating medium discharge pipe. Detailed Implementation
[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0014] like Figures 1-5 As shown, the present invention provides a methanol reforming hydrogen production reactor, comprising multiple reaction tanks 1, a bottom plate 2 fixedly connected to the bottom of the reaction tank 1, a top plate 3 fixedly connected to the top of the reaction tank 1, an inlet pipe 4 fixedly connected to the bottom of the bottom plate 2, and multiple inlet pipes 4 fixedly connected to each other via steam transmission pipes 5, one end of the steam transmission pipe 5 being fixedly connected to the output end of a vaporizer, a liquid inlet pipe 6 fixedly connected to one side of the reaction tank 1, a liquid outlet pipe 7 fixedly connected to the other side of the reaction tank 1, and multiple partition covers 8 fixedly connected inside the reaction tank 1, the multiple partition covers 8 being arranged in a ring, and a spiral plate 9 fixedly connected inside the partition cover 8.
[0015] like Figures 1-2 , Figure 4 As shown, the inlet pipe 6 and the outlet pipe 7 are arranged diagonally, and the outlet pipe 7 is set at a lower height than the inlet pipe 6. Multiple inlet pipes 6 are fixedly connected to each other through heating medium input pipe 17, and multiple outlet pipes 7 are fixedly connected to each other through heating medium discharge pipe 18. One end of the heating medium input pipe 17 is fixedly connected to the output end of the external heating medium circulation mechanism through a pipe, and one end of the heating medium discharge pipe 18 is fixedly connected to the input end of the external heating medium circulation mechanism through a pipe. The heating medium input pipe 17 and the heating medium discharge pipe 18 can realize the circulation of the heating medium in the reaction tank 1, thereby realizing continuous heating of the catalyst and ensuring that the catalyst is in the active temperature range.
[0016] like Figures 1-5As shown, a first heating chamber 10 is provided inside the reaction vessel 1, and a second heating chamber 11 is provided inside the partition hood 8. The first heating chamber 10 and the second heating chamber 11 are connected, thereby rapidly heating the catalyst between the partition hood 8 and the spiral plate 9 through the heating medium in the first heating chamber 10 and the second heating chamber 11. A heat conduction groove 12 is provided between two adjacent partition hoods 8 to increase the contact area between the methanol water vapor and the catalyst. Multiple partitions 14 are fixedly connected to the outside of the spiral plate 9, and the spiral plate 9 and the partitions 14 are mesh plates. The center of the spiral plate 9... A central column 13 is fixedly connected to the position. A base frame 15 is fixedly connected between the central column 13, the bottom of the partition plate 14, and the partition cover 8. A mesh plate is installed inside the base frame 15, and the partition plate 14 is inserted into the corresponding heat conduction groove 12. The arrangement of the spiral plate 9 and the partition plate 14 can increase the contact area between methanol water vapor and the catalyst, and improve the heat conduction efficiency of the catalyst and reduce the passage speed of methanol water vapor, thereby improving the quality of the catalytic reaction. An exhaust pipe 16 is fixedly connected to the top of the top plate 3, and the top of the exhaust pipe 16 is fixedly connected to the inlet and outlet of the external separator.
[0017] It should be noted that this utility model is a methanol reforming hydrogen production reactor. First, the methanol and water mixture is vaporized by an external vaporizer. The generated methanol water vapor is transported to each inlet pipe 4 through the steam pipe 5, and then enters the interior of multiple reaction tanks 1 through the inlet pipe 4. At the same time, the external heating medium circulation mechanism pressurizes the heating medium and distributes it to the liquid inlet pipe 6 of each reaction tank 1 through the heating medium input pipe 17. Then, the heating medium flows into the first heating chamber 10 in the reaction tank 1. Since the first heating chamber 10 is connected to the second heating chamber 11 in the partition 8, the heating medium will enter the second heating chamber 11 simultaneously. Through the dual heating chamber structure, the heat is quickly transferred to the catalyst filled between the partition 8 and the spiral plate 9, so that the catalyst temperature is stably maintained in the active range, providing continuous and uniform heat for the reforming reaction. Therefore, the methanol water vapor entering the reaction tank 1 will flow to the heat conduction groove 12 between adjacent partitions 8 under the guidance of the annular enclosure 8. The partition 14 on the outside of the spiral plate 9 is inserted into the heat conduction groove 12. Both the spiral plate 9 and the partition 14 are mesh plates, which greatly increases the contact area between the methanol water vapor and the catalyst on the one hand, and slows down the passage speed of the methanol water vapor on the other hand, allowing the methanol water vapor to have more time to contact the catalyst and fully undergo the reforming reaction to generate a mixture of hydrogen and carbon dioxide. The mixed gas generated by the reaction flows upward and is transported to the external separator through the exhaust pipe 16 at the top of the top plate 3. The separator purifies the mixed gas and finally obtains high-purity hydrogen.
[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A methanol reforming hydrogen production reactor, characterized in that: The reaction vessel includes multiple reaction vessels (1), with a bottom plate (2) fixedly connected to the bottom of each reaction vessel (1) and a top plate (3) fixedly connected to the top of each reaction vessel (1). An air inlet pipe (4) is fixedly connected to the bottom of the bottom plate (2), and the multiple air inlet pipes (4) are fixedly connected to each other via steam pipes (5). One end of the steam pipe (5) is fixedly connected to the output end of the vaporizer. A liquid inlet pipe (6) is fixedly connected to one side of each reaction vessel (1), and a liquid outlet pipe (7) is fixedly connected to the other side of each reaction vessel (1). Multiple partition covers (8) are fixedly connected inside each reaction vessel (1), and the multiple partition covers (8) are arranged in a ring. A spiral plate (9) is fixedly connected inside each partition cover (8).
2. The methanol reforming hydrogen production reaction device according to claim 1, characterized in that: The inlet pipe (6) and outlet pipe (7) are arranged diagonally, and the outlet pipe (7) is set at a lower height than the inlet pipe (6). The multiple inlet pipes (6) are fixedly connected to each other through the heating medium input pipe (17), and the multiple outlet pipes (7) are fixedly connected to each other through the heating medium discharge pipe (18). One end of the heating medium input pipe (17) is fixedly connected to the output end of the external heating medium circulation mechanism through a pipe, and one end of the heating medium discharge pipe (18) is fixedly connected to the input end of the external heating medium circulation mechanism through a pipe.
3. The methanol reforming hydrogen production reactor according to claim 1, characterized in that: The reaction vessel (1) has a first heating chamber (10) and the partition cover (8) has a second heating chamber (11). The first heating chamber (10) and the second heating chamber (11) are connected.
4. The methanol reforming hydrogen reaction device according to claim 1, characterized in that: A heat-conducting groove (12) is provided between two adjacent partition covers (8).
5. The methanol reforming hydrogen generation reaction device according to claim 4, characterized in that: Multiple partitions (14) are fixedly connected to the outside of the spiral plate (9), and the spiral plate (9) and the partitions (14) are mesh plates. A central column (13) is fixedly connected to the center of the spiral plate (9). A base frame (15) is fixedly connected between the central column (13), the bottom of the partitions (14), and the partition cover (8). A mesh plate is laid inside the base frame (15), and the partitions (14) are inserted into the corresponding heat conduction grooves (12).
6. The methanol reforming hydrogen generation reaction device according to claim 1, characterized in that: The top plate (3) is fixedly connected to an exhaust pipe (16), and the top of the exhaust pipe (16) is fixedly connected to the inlet and outlet of the external separator.