Blade type catalyst heating device for methanol reforming hydrogen production
By using a blade catalyst heating device in methanol hydrogen production technology, the design of double-sided mica heating plate and evaporation plate is used to solve the problems of heating in the reforming chamber and the equipment integration, and the hydrogen production efficiency and modularity are improved , achieving efficient hydrogen production.
Patent Information
- Application Number
- CN202420852535.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-23
AI Technical Summary
In the existing methanol hydrogen production technology, the heating of the reforming chamber is uneven, resulting in low hydrogen production efficiency, low level of equipment integration, inconvenient disassembly and assembly, and the amount of hydrogen production through electric heating is small, so it is impossible to produce a large amount of hydrogen.
The reforming chamber is heated on both sides by double-sided mica heating plate, which increases the wavy structure and support net of the evaporation plate, and connects the connecting tubes in series to improve the reaction time, and combines the preheating box and the galvanic thermometer to achieve uniformity. Heating and efficient hydrogen production.
The uniformity of the reforming chamber heating is achieved, the efficiency of hydrogen production is improved, the degree of modularity is improved, the equipment is disassembled and installed and maintained, the amount of hydrogen production is increased, and the safe and reliable device design is ensured.
Smart Images
Figure CN222151947U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of methanol hydrogen production, in particular to a blade-type catalyst heating device for methanol reforming hydrogen production. Background Art
[0002] With the popularization and development of new energy technologies, the development of hydrogen fuel cells has become more and more perfect, and the related methanol hydrogen production technology has also become more mature. Methanol hydrogen production is a process of converting methanol and water into hydrogen. This method has cost and environmental advantages compared to other hydrogen production raw materials. Methanol is a liquid fuel that is easy to store and transport. It can be safely stored and transported to remote areas at room temperature and pressure, and its cost is usually lower than the cost of compressed hydrogen. In the process of methanol hydrogen production, a mixture of methanol and water reacts under the action of a catalyst to produce hydrogen, carbon dioxide and other by-products. And because of the availability and low cost of methanol, this method of hydrogen production is more economically competitive.
[0003] In the methanol hydrogen production process, high-temperature reforming of methanol is the most critical step in the entire hydrogen production process. This step requires a stable high-temperature environment to allow methanol to stably react with the catalyst to generate hydrogen-rich gas. In the relevant technology, in order to create a high-temperature hydrogen production environment, the heating of the reforming chamber in the methanol hydrogen production equipment adopts combustion heating and electric heating. In the combustion heating method, the heat source is relatively concentrated, and it is impossible to achieve uniform heating of all parts of the reforming chamber; at the same time, there is a situation where the fire source is extinguished during the hydrogen production process, which further leads to uneven heating and affects the purity of hydrogen production; in addition, the combustion equipment is generally integrated with the reforming equipment, the equipment has a high degree of integration and a low degree of modularization, which makes the methanol hydrogen production equipment inconvenient to disassemble and assemble, and difficult to maintain. In the general electric heating method, the equipment is small in size and only concentrates on heating a single catalyst carrier, which limits its hydrogen production to a small amount and cannot produce a large amount of hydrogen.
[0004] Therefore, it is necessary to provide a new blade-type catalyst heating device for methanol reforming hydrogen production to solve the above technical problems. Utility Model Content
[0005] The technical problem solved by the utility model is to provide a blade-type catalyst heating device for methanol reforming hydrogen production, which has the advantages of uniform heating of the reforming chamber and convenient hydrogen production.
[0006] In order to solve the above technical problems, the utility model provides a methanol reforming hydrogen production blade-type catalyst heating device comprising: a fixed box, a double-sided mica heating plate for heating a reforming chamber on both sides is installed inside the fixed box, the reforming chamber is located between two of the double-sided mica heating plates, a blade-shaped catalyst is installed inside the reforming chamber, adjacent reforming chambers are connected in series through a connecting pipe, an air outlet pipe is installed at the top of the reforming chamber located on one side of the fixed box; a single-sided mica heating plate is installed at the bottom end of the fixed box, and an evaporation plate for heating the solution is installed on the top surface of the single-sided mica heating plate; a partition is installed inside the fixed box, a support net is installed on the surface of the partition, and the support net is aligned with the reforming chamber located on the other side of the fixed box.
[0007] Preferably, a preheating box is installed on the side wall of the fixed box, and a liquid inlet pipe is installed on the top of the preheating box.
[0008] Preferably, a connecting pipe is installed at the bottom end of the preheating box, and the connecting pipe is connected to the interior of the fixed box.
[0009] Preferably, the connecting pipe is located between the evaporation plate and the partition plate.
[0010] Preferably, the evaporation plate is installed at the bottom end of the fixed box, and the surface of the evaporation plate has a wavy structure.
[0011] Preferably, the side wall of the fixed box is provided with an observation window, and the side wall of the connecting pipe is installed with a valve.
[0012] Preferably, thermocouple thermometers are installed at the bottom end of the fixed box and inside the reforming chamber.
[0013] Compared with the related art, the blade-type catalyst heating device for methanol reforming hydrogen production provided by the utility model has the following beneficial effects:
[0014] The utility model provides a blade-type catalyst heating device for methanol reforming hydrogen production. During the production process, the methanol solution flows to the surface of the evaporation plate, and the single-sided mica heating plate heats the evaporation plate and the solution, so that the solution evaporates and enters the interior of the reforming chamber through the support net. At this time, the double-sided mica heating plate heats the reforming chamber, and the reforming chamber is located between two double-sided mica heating plates. The double-sided mica heating plate heats both sides of the reforming chamber at the same time, so that the interior of the reforming chamber is heated evenly, and the hydrogen production efficiency is accelerated. The adjacent reforming chambers are connected in series through connecting pipes to increase the distance that the gas flows inside the reforming chamber, increase the reaction time, and improve the hydrogen production efficiency. The device has a high degree of modularization, and it is simple to take and put the catalyst inside the reforming chamber, and it is convenient to assemble and disassemble, which is convenient for rapid assembly to produce hydrogen. In addition, the device has a high degree of integration, a small size, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A structural schematic diagram of a preferred embodiment of a blade-type catalyst heating device for hydrogen production from methanol reforming provided by the utility model;
[0016] Figure 2 for Figure 1 The internal structure diagram of the fixed box shown;
[0017] Figure 3 for Figure 2 An enlarged schematic diagram of the structure at A shown;
[0018] Figure 4 for Figure 1 The internal structure of the fixed box is shown in the side view.
[0019] Numbers in the figure: 1. fixed box, 2. double-sided mica heating plate, 3. single-sided mica heating plate, 4. evaporation plate, 5. partition, 6. support net, 7. reforming chamber, 8. blade-shaped catalyst, 9. air outlet pipe, 10. liquid inlet pipe, 11. preheating box, 12. connecting pipe, 13. thermocouple thermometer, 14. observation window, 15. connecting pipe. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 .in Figure 1 A structural schematic diagram of a preferred embodiment of a blade-type catalyst heating device for hydrogen production from methanol reforming provided by the utility model; Figure 2 for Figure 1 The internal structure diagram of the fixed box shown; Figure 3 for Figure 2 An enlarged schematic diagram of the structure at A shown; Figure 4 for Figure 1The internal structure of the fixed box is shown in the figure. A blade-type catalyst heating device for hydrogen production by reforming methanol comprises: a fixed box 1, a double-sided mica heating plate 2 for heating a reforming chamber 7 on both sides is installed inside the fixed box 1, the reforming chamber 7 is located between two double-sided mica heating plates 2, a blade-shaped catalyst 8 is installed inside the reforming chamber 7, adjacent reforming chambers 7 are connected in series through a connecting pipe 15, an air outlet pipe 9 is installed at the top of the reforming chamber 7 located on one side of the fixed box 1; a single-sided mica heating plate 3 is installed at the bottom end of the fixed box 1, an evaporation plate 4 for heating the solution is installed on the top surface of the single-sided mica heating plate 3; a partition 5 is installed inside the fixed box 1, a support net 6 is installed on the surface of the partition 5, and the support net 6 is aligned with the reforming chamber 7 located on the other side of the fixed box 1. During the production process, the methanol solution flows to the surface of the evaporation plate 4, and the single-sided mica heating plate 3 heats the evaporation plate 4 and the solution, so that the solution evaporates and enters the interior of the reforming chamber 7 through the support net 6. At this time, the double-sided mica heating plate 2 heats the reforming chamber 7. The reforming chamber 7 is located between two double-sided mica heating plates 2. The double-sided mica heating plate 2 heats both sides of the reforming chamber 7 at the same time, so that the interior of the reforming chamber 7 is heated evenly and the hydrogen production efficiency is accelerated; the adjacent reforming chambers 7 are connected in series through connecting pipes, so that the gas flows in multiple reforming chambers 7 in turn, increasing the distance the gas flows in the reforming chamber 7, increasing the reaction time, and improving the hydrogen production efficiency.
[0022] The side wall of the fixed box 1 is installed with a preheating box 11, and the top of the preheating box 11 is installed with a liquid inlet pipe 10. The bottom of the preheating box 11 is installed with a connecting pipe 12, and the connecting pipe 12 is connected to the interior of the fixed box 1; the connecting pipe 12 is located between the evaporation plate 4 and the partition 5, and the methanol solution enters the interior of the preheating box 11 through the liquid inlet pipe 10, and the heat emitted by the double-sided mica heating plate 2 is emitted through the fixed box 1 and enters the interior of the preheating box 11, so that the solution inside the preheating box 11 is heated to facilitate the evaporation of the solution; the solution inside the preheating box 11 enters the surface of the evaporation plate 4 through the connecting pipe 12, and the evaporation plate 4 is installed at the bottom of the fixed box 1, and the surface of the evaporation plate 4 is a wavy structure, in order to increase the contact area between the solution and the evaporation plate 4 and accelerate the evaporation efficiency of the solution.
[0023] The side wall of the fixed box 1 is provided with an observation window 14. In order to facilitate the liquid level of the solution on the surface of the evaporation plate 4, a valve is installed on the side wall of the connecting pipe 12. The flow rate of the solution on the surface of the evaporation plate 4 entering the connecting pipe 12 is controlled by adjusting the valve to avoid excessive solution remaining on the surface of the evaporation plate 4, so that the unevaporated solution passes through the supporting net 6 and enters the interior of the reforming chamber 7.
[0024] Thermocouple thermometers 13 are installed at the bottom of the fixed box 1 and inside the reforming chamber 7 to monitor the temperatures of the evaporation plate 4 and the reforming chamber 7 through the thermocouple thermometers 13 .
[0025] The working principle of the blade-type catalyst heating device for hydrogen production by reforming methanol provided by the utility model is as follows: connect the device to an external power source, turn on the double-sided mica heating plate 2 and the single-sided mica heating plate 3 to start the heating device, heat the evaporation plate 4 and the reforming chamber 7, and the thermocouple thermometer 13 monitors the temperature of the evaporation plate 4 and the reforming chamber 7. After the evaporation plate 4 reaches 260°C, the heating is stopped, and the surface temperature of the evaporation plate 4 is maintained; after the reforming chamber 7 reaches 280°C, the heating is stopped to maintain the internal temperature of the reforming chamber 7. Methanol and water are configured into a solution according to a certain water-to-alcohol ratio, and enter the interior of the preheating box 11 through the liquid inlet pipe 10. The heat emitted by the double-sided mica heating plate 2 is emitted through the fixed box 1 and enters the interior of the preheating box 11, so that the solution inside the preheating box 11 is heated to facilitate the evaporation of the solution; the solution tube in the preheating box 11 enters the surface of the evaporation plate 4 through the connecting pipe 12, and the surface of the evaporation plate 4 is in a wavy structure, which increases the contact area between the solution and the evaporation plate 4 and accelerates the evaporation efficiency of the solution. After evaporation, the solution enters the interior of the reforming chamber 7 through the support net 6, and is catalyzed by the blade-shaped catalyst 8 inside the reforming chamber 7 to generate hydrogen, carbon dioxide and other hydrogen-rich gases. The adjacent reforming chambers 7 are connected in series through connecting pipes, so that the gas flows in the interior of the multiple reforming chambers 7 in turn, increasing the distance the gas flows inside the reforming chamber 7, increasing the reaction time, and improving the hydrogen production efficiency. The generated gas is discharged through the outlet pipe 9 for collection and cooling.
[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A blade-type catalyst heating device for methanol reforming hydrogen production, characterized in that: include: A fixed box (1), a double-sided mica heating plate (2) for heating a reforming chamber (7) on both sides is installed inside the fixed box (1), the reforming chamber (7) is located between two double-sided mica heating plates (2), a blade-shaped catalyst (8) is installed inside the reforming chamber (7), adjacent reforming chambers (7) are connected in series via a connecting pipe (15), and an air outlet pipe (9) is installed at the top of the reforming chamber (7) located on one side of the fixed box (1); A single-sided mica heating plate (3) is installed at the bottom end of the fixed box (1), and an evaporation plate (4) for heating the solution is installed on the top surface of the single-sided mica heating plate (3); a partition (5) is installed inside the fixed box (1), and a support net (6) is installed on the surface of the partition (5), and the support net (6) is aligned with the reforming chamber (7) located on the other side of the fixed box (1).
2. The blade-type catalyst heating device for methanol reforming hydrogen production according to claim 1, characterized in that: A preheating box (11) is installed on the side wall of the fixed box (1), and a liquid inlet pipe (10) is installed on the top of the preheating box (11).
3. The blade-type catalyst heating device for methanol reforming hydrogen production according to claim 2 is characterized in that: A connecting pipe (12) is installed at the bottom end of the preheating box (11), and the connecting pipe (12) is connected to the interior of the fixed box (1).
4. The blade-type catalyst heating device for methanol reforming hydrogen production according to claim 3 is characterized in that: The connecting pipe (12) is located between the evaporation plate (4) and the partition plate (5).
5. The blade-type catalyst heating device for methanol reforming hydrogen production according to claim 4, characterized in that: The evaporation plate (4) is installed at the bottom end of the fixed box (1), and the surface of the evaporation plate (4) has a wavy structure.
6. The blade-type catalyst heating device for methanol reforming hydrogen production according to claim 4, characterized in that: The side wall of the fixed box (1) is provided with an observation window (14), and the side wall of the connecting pipe (12) is provided with a valve.
7. The blade-type catalyst heating device for methanol reforming hydrogen production according to claim 1, characterized in that: The bottom end of the fixed box (1) and the interior of the reforming chamber (7) are both equipped with thermocouple thermometers (13).