Methanol cracking hydrogen production reaction vessel facilitating catalyst replacement

Abstract

The utility model discloses methanol cracking hydrogen production reaction container convenient to catalyst replacement, specifically related to methanol cracking hydrogen production technical field, including the reaction tank body, the outside fixed connection of reaction tank body has two docking blocks, and the outside of reaction tank body is provided with the replacement groove, and the inside of replacement groove is provided with the sealing arc plate, and the outside fixed connection of sealing arc plate has the sealing washer, and the front and rear two ends fixed connection of sealing arc plate has the fixed block, and docking block and fixed block fixed connection, and the inside fixed connection of sealing arc plate has the support frame, and the inside fixed connection of support frame has the support net, and the outside fixed connection of sealing arc plate has the handle, and the outside fixed connection of reaction tank body has the agent pipe. The utility model discloses after hydrogen production reaction, take down the bolt of connecting docking block and fixed block, and through handle pull sealing arc plate makes it abstract apart replacement groove, and simultaneously drives support frame to remove reaction tank body, so as to clean up the catalyst on the support net of replacement, realizes the convenient replacement of catalyst.

Description

Technical Field

[0001] This utility model relates to the field of methanol cracking for hydrogen production technology, and more specifically, to a methanol cracking for hydrogen production reaction vessel that facilitates catalyst replacement. Background Technology

[0002] Hydrogen has a wide range of industrial applications. In recent years, the demand for pure hydrogen has increased rapidly. Many manufacturers that used water electrolysis to produce hydrogen have carried out technological transformation and switched to a new process route for producing hydrogen by methanol cracking. This process uses methanol and desalinated water as raw materials and adds a catalyst to crack the methanol. It can also directly crack methanol to obtain hydrogen.

[0003] Common methanol cracking hydrogen production reactors can only perform methanol cracking hydrogen production operations, but they lack the function of easy catalyst replacement. During the methanol-to-hydrogen reaction process, a catalyst needs to be added for cracking, but it is difficult to remove the catalyst once it is added into the sealed reaction vessel. Therefore, catalyst replacement is very difficult, which ultimately leads to a reduction in hydrogen production efficiency.

[0004] In summary, to improve hydrogen production efficiency, it is necessary to address the difficulty of replacing the catalyst and make it easy to remove the catalyst added to the sealed reaction vessel. Utility Model Content

[0005] The methanol cracking hydrogen production reaction vessel provided by this utility model, which facilitates catalyst replacement, aims to solve the problem that it is difficult to remove the catalyst after it has been added into the sealed reaction vessel, thus making catalyst replacement very difficult and affecting hydrogen production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a methanol cracking hydrogen production reaction vessel that facilitates catalyst replacement, comprising a reaction tank body, two docking blocks fixedly connected to the outer side of the reaction tank body, a replacement groove provided on the outer side of the reaction tank body, a sealing arc plate provided inside the replacement groove, a sealing gasket fixedly connected to the outer side of the sealing arc plate, fixing blocks fixedly connected to the front and rear ends of the sealing arc plate, the docking blocks fixedly connected to the fixing blocks, a support frame fixedly connected to the inner side of the sealing arc plate, a support net fixedly connected to the inner side of the support frame, a handle fixedly connected to the outer side of the sealing arc plate, a dosing pipe fixedly connected to the outer side of the reaction tank body, a cracking reaction mechanism provided on the reaction tank body, the cracking reaction mechanism being used to crack the vaporized material, and a pipe fitting mechanism provided on the reaction tank body and the cracking reaction mechanism, the pipe fitting mechanism being used for discharging and adding material.

[0007] In a preferred embodiment, the pyrolysis reaction mechanism includes a catalyst assembly and a support assembly. The catalyst assembly is used to perform a pyrolysis reaction on the vaporized material, and the support assembly is used to support the catalyst assembly.

[0008] In a preferred embodiment, the support assembly includes a reaction cover disposed on the top of the reaction vessel and a plurality of support angle irons fixedly connected to the inside of the reaction vessel and the reaction cover.

[0009] In a preferred embodiment, the catalyst assembly includes a partition fixedly connected to the top of the support angle iron and a plurality of honeycomb holes formed on the top of the partition.

[0010] In a preferred embodiment, the pipe assembly includes a pressure relief assembly and a reflux assembly. The pressure relief assembly is used to maintain the pressure inside the reaction vessel, and the reflux assembly is used to reintroduce unreacted methanol and water into the reaction vessel.

[0011] In a preferred embodiment, the feeding assembly includes an upper flange fixedly connected to the outside of the reaction cover, a lower flange fixedly connected to the outside of the reaction vessel body, and a pressure relief valve connecting pipe fixedly connected to the top of the reaction cover, with the upper flange and the lower flange fixedly connected.

[0012] In a preferred embodiment, the reflux assembly includes a feed pipe fixedly connected to the top of the reaction cover, an outlet pipe fixedly connected to the top of the reaction cover, and a reflux pipe fixedly connected to the outside of the reaction vessel.

[0013] The beneficial effects of this utility model are as follows:

[0014] The main advantage of this invention is that it significantly improves the convenience and efficiency of catalyst replacement. Through the linkage design, the catalyst support net can be quickly removed from the sealed reaction vessel without entering the container or performing complex disassembly. This completely solves the key problem of the difficulty in cleaning and removing the catalyst in traditional sealed containers, greatly reduces maintenance difficulty, shortens downtime, and effectively ensures operational safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0017] Figure 3 This is a schematic cross-sectional view of the reaction vessel of this utility model.

[0018] Figure 4 This is a schematic diagram of the reaction vessel structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the reaction cap structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the catalyst replacement component of this utility model.

[0021] The attached diagram is labeled as follows: 1. Reaction vessel body; 11. Connecting block; 12. Replacement slot; 13. Sealing arc plate; 14. Sealing gasket; 15. Fixing block; 16. Support frame; 17. Support mesh; 18. Handle; 19. Additive pipe; 211. Reaction cover; 212. Support angle iron; 221. Baffle plate; 222. Honeycomb hole; 311. Upper flange; 312. Lower flange; 313. Pressure relief valve connecting pipe; 321. Feeding pipe; 322. Gas outlet pipe; 323. Return pipe. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 6 A methanol cracking hydrogen production reactor for easy catalyst replacement includes a reaction tank 1. Two docking blocks 11 are fixedly connected to the outside of the reaction tank 1. A replacement groove 12 is opened on the outside of the reaction tank 1. A sealing arc plate 13 is installed inside the replacement groove 12. A sealing gasket 14 is fixedly connected to the outside of the sealing arc plate 13. Fixing blocks 15 are fixedly connected to the front and rear ends of the sealing arc plate 13. The docking blocks 11 are fixedly connected to the fixing blocks 15. A support frame 16 is fixedly connected to the inside of the sealing arc plate 13. A support net 17 is fixedly connected to the inside of the support frame 16. A handle 18 is fixedly connected to the outside of the sealing arc plate 13. A dosing pipe 19 is fixedly connected to the outside of the reaction tank 1. A cracking reaction mechanism is installed on the reaction tank 1. The cracking reaction mechanism is used to crack the vaporized material. Piping mechanisms are installed on the reaction tank 1 and the cracking reaction mechanism. Piping mechanisms are used for discharging and adding materials.

[0024] It should be noted that the baffle 221 at the bottom inside the reaction vessel 1 can support the support frame 16, and the support frame 16 will not block the position of the honeycomb holes 222.

[0025] Refer to the instruction manual appendix Figures 1 to 3 The pyrolysis reaction mechanism includes a catalyst assembly and a support assembly. The catalyst assembly is used to carry out the pyrolysis reaction on the vaporized material, and the support assembly is used to support the catalyst assembly.

[0026] It should be noted that the reaction cover 211 has only one partition 221 inside, while the reaction vessel 1 has four partitions 221 inside, and the spacing between these four partitions 221 is not the same.

[0027] Refer to the instruction manual appendix Figure 3The support assembly includes a reaction cover 211 disposed on the top of the reaction vessel 1 and multiple support angle irons 212 fixedly connected to the reaction vessel 1 and the inner side of the reaction cover 211.

[0028] It should be noted that the support angle iron 212 is welded around the inner wall of the reaction vessel body 1 and the reaction cover 211, and its position is fixed according to the position of each pipe fitting.

[0029] Refer to the instruction manual appendix Figure 2 The catalyst assembly includes a partition 221 fixedly connected to the top of the support angle iron 212 and a plurality of honeycomb holes 222 opened on the top of the partition 221.

[0030] It should be noted that the mixture will vaporize after heating, and the vaporized material will undergo a cracking reaction effectively and fully on the catalyst surface of the partition 221 to produce hydrogen and carbon monoxide.

[0031] Refer to the instruction manual appendix Figures 1 to 5 The pipe fittings include a pressure relief assembly and a reflux assembly. The pressure relief assembly is used to maintain the pressure inside the reaction tank 1, and the reflux assembly is used to reintroduce unreacted methanol and water into the reaction tank 1.

[0032] It should be noted that the vent pipe 322 and the return pipe 323 are both connected to the external circulating water tank, while the feed pipe 321 is connected to the external liquid delivery equipment.

[0033] Refer to the instruction manual appendix Figure 5 The feeding assembly includes an upper flange 311 fixedly connected to the outside of the reaction cover 211, a lower flange 312 fixedly connected to the outside of the reaction tank 1, and a pressure relief valve connecting pipe 313 fixedly connected to the top of the reaction cover 211. The upper flange 311 and the lower flange 312 are fixedly connected.

[0034] It should be noted that a specified pressure relief valve is installed on the pressure relief valve connection pipe 313. When the pressure inside the reaction tank 1 exceeds the preset value, the pressure relief valve will open to release the pressure.

[0035] Refer to the instruction manual appendix Figures 1 to 4 The reflux assembly includes a feed pipe 321 fixedly connected to the top of the reaction cover 211, an outlet pipe 322 fixedly connected to the top of the reaction cover 211, and a reflux pipe 323 fixedly connected to the outside of the reaction vessel 1.

[0036] It should be noted that the vaporized material will move upward until it moves to the external circulating water tank through the gas outlet pipe 322. The external circulating water tank adsorbs the unreacted methanol, and then the unreacted methanol is transported back to the interior of the reaction tank 1 through the return pipe 323.

[0037] Working principle: First, a designated pressure relief valve is installed on the pressure relief valve connection pipe 313. Then, the outlet pipe 322 and return pipe 323 are both connected to the external circulating water tank, while the feed pipe 321 is connected to the external liquid delivery equipment. When a reaction is required, a mixture of methanol and water is added to the interior of the reaction tank 1 through the feed pipe 321 via the external liquid delivery equipment. Subsequently, the catalyst is added to the interior of the reaction tank 1 through the additive pipe 19. At this time, the catalyst falls onto the support net 17, and then heating is carried out. After heating, the mixture vaporizes. The vaporized material undergoes a cracking reaction effectively and fully on the catalyst surface of the baffle 221 to produce hydrogen and carbon monoxide. After hydrogenation, it is decomposed into carbon dioxide upon encountering the catalyst. When the pressure inside the reaction tank 1 exceeds the preset value, substances such as carbon dioxide, carbon monoxide, hydrogen, and methane will cause the pressure relief valve to open and release gas. The vaporized material will then move upwards until it passes through the vent pipe 322 to the external circulating water tank. The external circulating water tank will adsorb unreacted methanol, which will then be transported back to the inside of the reaction tank 1 through the return pipe 323. After the hydrogen production reaction is completed, the bolts connecting the docking block 11 and the fixing block 15 will be removed. Then, the sealing arc plate 13 will be pulled out of the replacement slot 12 by the handle 18. The sealing arc plate 13 will then pull the support frame 16 out of the inside of the reaction tank 1, allowing the catalyst on the support net 17 to be cleaned and replaced.

[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A methanol cracking hydrogen production reactor that facilitates catalyst replacement, characterized in that: The reaction vessel includes a reaction tank (1), with two docking blocks (11) fixedly connected to the outside of the reaction tank (1). A replacement groove (12) is provided on the outside of the reaction tank (1), and a sealing arc plate (13) is provided inside the replacement groove (12). A sealing gasket (14) is fixedly connected to the outside of the sealing arc plate (13), and fixing blocks (15) are fixedly connected to the front and rear ends of the sealing arc plate (13). The docking blocks (11) and the fixing blocks (15) are fixedly connected, and the inner side of the sealing arc plate (13) is fixedly connected. A support frame (16) is fixedly connected to the inner side of the support frame (16), a support net (17) is fixedly connected to the inner side of the support frame (16), a handle (18) is fixedly connected to the outer side of the sealing arc plate (13), an additive pipe (19) is fixedly connected to the outer side of the reaction tank (1), a pyrolysis reaction mechanism is provided on the reaction tank (1), the pyrolysis reaction mechanism is used to perform pyrolysis reaction on the vaporized material, and a pipe fitting mechanism is provided on the reaction tank (1) and the pyrolysis reaction mechanism, the pipe fitting mechanism is used to discharge and add material.

2. The methanol cracking hydrogen production reactor according to claim 1, characterized in that: The pyrolysis reaction mechanism includes a catalyst assembly and a support assembly. The catalyst assembly is used to carry out the pyrolysis reaction on the vaporized material, and the support assembly is used to support the catalyst assembly.

3. The methanol cracking hydrogen production reactor according to claim 2, characterized in that: The support assembly includes a reaction cover (211) disposed on the top of the reaction vessel (1) and multiple support angle irons (212) fixedly connected to the inside of the reaction vessel (1) and the reaction cover (211).

4. The methanol cracking hydrogen production reactor according to claim 3, characterized in that: The catalyst assembly includes a partition (221) fixedly connected to the top of the support angle iron (212) and a plurality of honeycomb holes (222) opened on the top of the partition (221).

5. The methanol cracking hydrogen production reactor according to claim 4, characterized in that: The fittings include a pressure relief assembly and a reflux assembly. The pressure relief assembly is used to maintain the pressure inside the reaction tank (1), and the reflux assembly is used to send unreacted methanol and water back into the reaction tank (1).

6. The methanol cracking hydrogen production reactor according to claim 5, characterized in that: The feeding assembly includes an upper flange (311) fixedly connected to the outside of the reaction cover (211), a lower flange (312) fixedly connected to the outside of the reaction tank (1), and a pressure relief valve connecting pipe (313) fixedly connected to the top of the reaction cover (211). The upper flange (311) and the lower flange (312) are fixedly connected.

7. The methanol cracking hydrogen production reactor according to claim 6, characterized in that: The reflux assembly includes a feed pipe (321) fixedly connected to the top of the reaction cover (211), an outlet pipe (322) fixedly connected to the top of the reaction cover (211), and a reflux pipe (323) fixedly connected to the outside of the reaction vessel (1).

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