Reaction kettle for hydrogen production by reforming methanol solution

Abstract

The utility model provides a reaction kettle for hydrogen production by reforming methanol solution, which relates to the technical field of hydrogen production by reforming methanol solution, and comprises a reaction kettle body, the bottom end of the reaction kettle body is communicated with a slag discharge pipe, the bottom surface of the reaction kettle body is rotatably connected with a screw rod, the bottom surface of the reaction kettle body is fixedly provided with a vertical rod, and the vertical rod is fixedly connected with the slag discharge pipe. The surfaces of the lead screw and the vertical rod are sleeved with a moving plate, a short rod is fixedly installed on the top face of the moving plate, and a sealing plate is fixedly installed at the top end of the short rod. The screw rod is in threaded fit with the movable plate, an operator only needs to simply screw the screw rod to open and close the deslagging pipe, complex operation procedures are not needed, operation difficulty is lowered, working efficiency is improved, meanwhile, the sealing plate is accurately controlled through a linkage structure of the screw rod and the short rod, and the sealing effect is good. The deslagging pipe can be effectively sealed when not used, residual materials in the reaction kettle are prevented from leaking, and the cleanness and safety of an operation environment are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen production by methanol solution reforming, in particular to a reaction kettle for hydrogen production by methanol solution reforming. Background Art

[0002] The hydrogen production method by methanol solution reforming generates hydrogen through the catalytic reforming reaction of a mixed solution of methanol and water at high temperature, and is widely used in the fields of hydrogen energy production and fuel cells. The main purpose of the reaction kettle for hydrogen production by methanol solution reforming is to provide a suitable reaction environment to enable the efficient progress of the methanol reforming reaction and ensure the hydrogen production and purity.

[0003] Publication No. CN220900362U discloses a reaction kettle and an industrial hydrofluoric acid preparation device, including a support frame, a reaction kettle body is arranged inside the support frame, a feed inlet is arranged on the surface of the reaction kettle body, a second feed pipe is arranged on the surface of the reaction kettle body, a sealing cover is arranged at one end of the second feed pipe, an auxiliary material pipe is arranged on the side of the second feed pipe, a second sealing cover is arranged at one end of the auxiliary material pipe, holes are arranged on the side of the auxiliary material pipe, and a sealing bearing is arranged inside the holes; a support rod, a base is arranged at one end of the support rod, and a sealing plate is arranged on the side of the base. Although when additives need to be added to the reaction kettle body during work, the second sealing cover can be opened, then the additives can be poured into the auxiliary material pipe, and then the second sealing cover can be used to seal one end of the auxiliary material pipe, and then the turntable can be rotated to make the support rod cooperate with the sealing bearing to rotate, so that the sealing plate in the auxiliary material pipe can be tilted, and the additives in the auxiliary material pipe can be poured into the reaction kettle body for reaction, which is relatively convenient. However, for this kind of reaction kettle, when discharging slag, it is necessary to manually disassemble the reaction kettle for slag discharge, which is troublesome and cumbersome, with low work efficiency, and at the same time increases the slag discharge cost. Therefore, improvements are needed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the technical problems raised in the above background art.

[0005] The utility model adopts the following technical scheme: a reaction kettle for hydrogen production by methanol solution reforming, including a reaction kettle body, a slag discharge pipe is communicated with the bottom end of the reaction kettle body, a lead screw is rotatably connected to the bottom surface of the reaction kettle body, a vertical rod is fixedly installed on the bottom surface of the reaction kettle body, a moving plate is sleeved on the surfaces of the lead screw and the vertical rod, a short rod is fixedly installed on the top surface of the moving plate, and a sealing plate is fixedly installed at the top end of the short rod.

[0006] Preferably, the sealing plate is adapted to the size of the slag discharge pipe, and the moving plate is slidably connected to the vertical rod.

[0007] Preferably, internal threads are formed in the moving plate, and the threads are engaged with the lead screw.

[0008] Preferably, a motor is fixedly installed at the top end of the reactor body, a stirring rod is installed at the output end of the motor, and a feed pipe and a discharge pipe are communicated with the surface of the reactor body.

[0009] Preferably, support feet are fixedly installed at the bottom end of the reactor body, and the support feet are arranged in a circular pattern at the bottom end of the reactor body. Here, the reactor body can be stably supported.

[0010] Preferably, a pressure reduction mechanism is arranged on the surface of the reactor body. The pressure reduction mechanism includes a connecting pipe which is communicated with the surface of the reactor body. A vertical plate is fixedly installed on the top surface of the moving plate, and a rack is fixedly installed at the top end of the vertical plate. A ball valve stem is rotatably connected to the surface of the connecting pipe, and a gear is fixedly installed on the surface of the ball valve stem. Here, the pressure inside the reactor body can be reduced.

[0011] Preferably, the gear meshes with the rack.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. Through the threaded cooperation between the screw rod and the moving plate, the operator only needs to simply turn the screw rod to open and close the slag discharge pipe, without complex operation procedures, reducing the operation difficulty and improving the work efficiency. At the same time, the sealing plate can be precisely controlled through the linkage structure of the screw rod and the short rod, ensuring that the slag discharge pipe can be effectively sealed when not in use, preventing the leakage of residual materials in the reactor, ensuring the cleanliness and safety of the operation environment, and the operator does not need to directly contact or manually operate the sealing plate and the slag discharge pipe. Turning the screw rod can complete the entire slag discharge process, which reduces the labor intensity and improves the operation safety, with high practicality.

[0014] 2. By synchronously starting the pressure reduction process during the opening of the slag discharge pipe, the risk of sudden ejection of residual materials from the slag discharge pipe due to excessive internal pressure is effectively prevented, greatly reducing the safety hazards during operation and protecting the safety of the operator. And through the mechanical linkage of the rack and the gear, the automatic synchronization of the opening of the slag discharge pipe and the pressure reduction process is achieved, without additional manual operation, reducing the operation steps and improving the work efficiency. By pre-reducing the pressure, the discharge speed and direction of the residual materials can be better controlled, avoiding waste caused by unstable pressure of the materials and improving the utilization rate of the materials, with high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a reactor for methanol solution reforming to produce hydrogen proposed by the present utility model;

[0016] Figure 2The utility model provides a bottom view of a reactor for methanol solution reforming to produce hydrogen;

[0017] Figure 3 The utility model provides a side view of a reactor for methanol solution reforming to produce hydrogen;

[0018] Figure 4 The utility model provides a reactor for methanol solution reforming to produce hydrogen Figure 3 The enlarged view at position A in the reactor.

[0019] Legend:

[0020] 1. Reactor body; 2. Motor; 3. Stirring rod; 4. Feed pipe; 5. Discharge pipe; 6. Slag discharge pipe; 7. Support leg; 8. Lead screw; 9. Vertical rod; 10. Moving plate; 11. Short rod; 12. Sealing plate; 13. Connecting pipe; 14. Vertical plate; 15. Rack; 16. Ball valve stem; 17. Gear. Specific embodiments

[0021] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0023] Embodiment 1

[0024] Please refer to Figures 1-4, the present utility model provides a technical solution: a reaction kettle for methanol solution reforming to produce hydrogen, including a reaction kettle body 1. The bottom end of the reaction kettle body 1 is fixedly installed with supporting feet 7, and the supporting feet 7 are arranged in a circular pattern at the bottom end of the reaction kettle body 1. The supporting feet 7 can be connected to the reaction kettle body 1 by means of bolt fixation or welding. Such a connection method not only ensures the stability and supporting force of the equipment but also facilitates later disassembly and maintenance. The material of the supporting feet 7 can be selected as stainless steel or high-strength plastic, which has the characteristics of corrosion resistance and high strength, ensuring the stability and durability of the equipment during long-term use. The top end of the reaction kettle body 1 is fixedly installed with a motor 2, and the output end of the motor 2 is installed with a stirring rod 3. The stirring rod 3 is connected to the output shaft of the motor 2 through a coupling. The use of the coupling can effectively absorb the vibration and impact generated during the transmission process and protect the service life of the motor 2 and the stirring rod 3. The material of the stirring rod 3 can be selected as high-temperature-resistant stainless steel or titanium alloy, which has the characteristics of high temperature resistance and corrosion resistance, ensuring uniform mixing at high temperatures. The surface of the reaction kettle body 1 is communicated with a feed pipe 4 and a discharge pipe 5. Both the feed pipe 4 and the discharge pipe 5 are fixed by means of flange connection or threaded connection. Such a connection method ensures the connection stability and sealing performance of the pipeline and can effectively prevent material leakage. Flange connection is suitable for occasions that require frequent disassembly and cleaning, while threaded connection is easier to install and adjust and is suitable for situations where space is limited or rapid installation is required. The material of the pipeline can be selected as high-temperature-resistant alloy steel or corrosion-resistant stainless steel to ensure its durability and stability during long-term use. The bottom end of the reaction kettle body 1 is communicated with a slag discharge pipe 6, and the slag discharge pipe 6 is fixed by means of threaded connection or flange connection, which is convenient for disassembly and cleaning and ensures the smooth discharge of residual materials. The material of the slag discharge pipe 6 can be selected as wear-resistant steel or stainless steel, which can be used for a long time in high-temperature and corrosive environments without being easily damaged. The bottom surface of the reaction kettle body 1 is rotatably connected with a lead screw 8. The lead screw 8 is rotatably connected to the bottom surface of the reaction kettle body 1 through a bearing or a sliding sleeve. Such a connection method can provide low-friction and high-precision rotational motion, ensuring that the lead screw 8 rotates smoothly and precisely when turned. The material of the lead screw 8 can be selected as high-strength alloy steel or stainless steel, which has high wear resistance and corrosion resistance. The bottom surface of the reaction kettle body 1 is fixedly installed with a vertical rod 9. The material of the vertical rod 9 can be selected as high-temperature-resistant stainless steel or high-strength alloy steel, which has high strength and corrosion resistance. A moving plate 10 is sleeved on the surfaces of the lead screw 8 and the vertical rod 9. The moving plate 10 is meshed with the lead screw 8 through a thread and is slidably connected to the vertical rod 9. The design of the threaded connection enables the operator to simply turn the lead screw 8 to drive the moving plate 10 to move up and down, thereby realizing the opening and closing of the slag discharge pipe 6. This design reduces the operation difficulty and improves the work efficiency.

[0025] Please refer to Figures 1-4, a thread is provided inside the moving plate 10, and the thread meshes with the lead screw 8. A short rod 11 is fixedly installed on the top surface of the moving plate 10. The material of the short rod 11 can be selected from high-temperature resistant stainless steel or alloy steel, which has the characteristics of high strength and corrosion resistance. The top end of the short rod 11 is fixedly installed with a sealing plate 12. The sealing plate 12 is adapted to the size of the slag discharge pipe 6. The sealing plate 12 is made of high-temperature resistant and corrosion-resistant rubber or polytetrafluoroethylene material, and can effectively seal in high-temperature and corrosive environments. When it is necessary to discharge the residual material in the reaction kettle body 1, the staff only needs to turn the lead screw 8. Since a thread is provided inside the moving plate 10, the rotation of the lead screw 8 can drive the movement of the moving plate 10. The moving plate 10 can then drive the movement of the short rod 11, and the short rod 11 can then drive the movement of the sealing plate 12 until the sealing plate 12 disengages from the slag discharge pipe 6. At this time, the slag discharge pipe 6 loses its blockage, and the residual material can be discharged. Through the thread cooperation between the lead screw 8 and the moving plate 10, the operator only needs to simply turn the lead screw 8 to open and close the slag discharge pipe 6, without complex operation procedures, reducing the operation difficulty and improving the work efficiency. At the same time, the sealing plate 12 can be precisely controlled through the linkage structure of the lead screw 8 and the short rod 11, ensuring that the slag discharge pipe 6 can be effectively sealed when not in use, preventing the leakage of the residual material in the reaction kettle, and ensuring the cleanliness and safety of the operation environment.

[0026] Embodiment 2

[0027] Please refer to Figures 3-4 , a pressure reducing mechanism is provided on the surface of the reaction kettle body 1. The pressure reducing mechanism includes a connecting pipe 13. The connecting pipe 13 is connected to the surface of the reaction kettle body 1 and is fixed by flange connection to ensure its connection stability and sealing performance under high pressure. A vertical plate 14 is fixedly installed on the top surface of the moving plate 10. The material of the vertical plate 14 can be selected from stainless steel or high-strength alloy steel, which has good corrosion resistance and mechanical strength and can be used for a long time without being easily damaged. A rack 15 is fixedly installed at the top end of the vertical plate 14. The rack 15 can be made of high-strength alloy steel or wear-resistant stainless steel to ensure its durability and anti-wear performance under high pressure. A ball valve stem 16 is rotatably connected to the surface of the connecting pipe 13. One end of the ball valve stem 16 is equipped with a ball valve (the ball valve is located inside the connecting pipe 13 and is used to control the on-off of the connecting pipe 13, not shown in the figure). A gear 17 meshes with the rack 15. The material of the gear 17 can be selected from wear-resistant steel or stainless steel, which has high strength and corrosion resistance.

[0028] Working principle: Methanol and water enter through the feed pipe 4, and then are heated in the reactor body 1. At the same time, the stirring rod 3 is driven by the motor 2 to rotate and mix, so as to carry out the catalytic reforming reaction. After the processing is completed, when it is necessary to discharge the residual materials in the reactor body 1, the operator only needs to turn the screw rod 8. At this time, since the moving plate 10 is provided with threads, when the screw rod 8 rotates, it can drive the moving plate 10 to move. Then the moving plate 10 can drive the short rod 11 to move, and the short rod 11 can then drive the sealing plate 12 to move until the sealing plate 12 disengages from the slag discharge pipe 6. At this time, the slag discharge pipe 6 loses its blockage, and the residual materials can be discharged. When sealing the slag discharge pipe 6, only need to turn the screw rod 8 in the reverse direction. Through the thread cooperation between the screw rod 8 and the moving plate 10 of the utility model, the operator only needs to simply turn the screw rod 8 to realize the opening and closing of the slag discharge pipe 6, without complex operation procedures, reducing the operation difficulty and improving the work efficiency. At the same time, the sealing plate 12 can be precisely controlled through the linkage structure of the screw rod 8 and the short rod 11, which can ensure that the slag discharge pipe 6 can be effectively sealed when not in use, prevent the leakage of the residual materials in the reactor, ensure the cleanliness and safety of the operation environment, and the operator does not need to directly contact or manually operate the sealing plate 12 and the slag discharge pipe 6. Turning the screw rod 8 can complete the entire slag discharge process, which reduces the labor intensity and improves the operation safety. When opening the slag discharge pipe 6 for discharging materials, during the downward movement of the moving plate 10, it can drive the vertical plate 14 to move downward. Then the vertical plate 14 can drive the rack 15 to move downward. During the movement of the rack 15, it can drive the gear 17 meshed with it to rotate. Then the gear 17 can drive the ball valve stem 16 to rotate, so as to open the connecting pipe 13. In this way, when opening the slag discharge pipe 6 for slag discharge, the pressure can be reduced in advance through the connecting pipe 13, thus avoiding the residual materials from spraying out of the slag discharge pipe 6 due to excessive pressure, improving the safety. The utility model effectively prevents the risk of the sudden spraying of the residual materials from the slag discharge pipe 6 due to excessive internal pressure by synchronously starting the pressure reduction process during the opening of the slag discharge pipe 6, greatly reducing the potential safety hazards during operation and protecting the safety of the operator. And through the mechanical linkage between the rack 15 and the gear 17, the automatic synchronization of the opening and pressure reduction processes of the slag discharge pipe 6 is realized, without additional manual operation, reducing the operation steps and improving the work efficiency. And through pre-pressure reduction, the discharge speed and direction of the residual materials can be better controlled, avoiding waste caused by unstable pressure of the materials and improving the utilization rate of the materials.

[0029] The above are only the preferred embodiments of the present utility model, rather than other forms of limitation to the present utility model. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications to equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A reactor for hydrogen production by methanol solution reforming, comprising a reactor body (1), characterized in that: A slag discharge pipe (6) is connected to the bottom end of the reactor body (1), a lead screw (8) is rotatably connected to the bottom surface of the reactor body (1), and a vertical rod (9) is fixedly installed on the bottom surface of the reactor body (1); A moving plate (10) is sleeved on the surfaces of the lead screw (8) and the vertical rod (9), a short rod (11) is fixedly installed on the top surface of the moving plate (10), and a sealing plate (12) is fixedly installed at the top end of the short rod (11).

2. The reactor for hydrogen production by methanol solution reforming according to claim 1, characterized in that: The sealing plate (12) is adapted to the size of the slag discharge pipe (6); The moving plate (10) is slidably connected to the vertical rod (9).

3. The reactor for hydrogen production by methanol solution reforming according to claim 1, characterized in that: Internal threads are provided in the moving plate (10), and the threads are engaged with the lead screw (8).

4. The reactor for hydrogen production by methanol solution reforming according to claim 1, characterized in that: A motor (2) is fixedly installed at the top end of the reactor body (1); A stirring rod (3) is installed at the output end of the motor (2); A feed pipe (4) and a discharge pipe (5) are connected to the surface of the reactor body (1).

5. The reactor for hydrogen production by methanol solution reforming according to claim 1, characterized in that: Support feet (7) are fixedly installed at the bottom end of the reactor body (1); The support feet (7) are arranged in a circular pattern at the bottom end of the reactor body (1).

6. The reactor for hydrogen production by methanol solution reforming according to claim 1, characterized in that: A pressure reducing mechanism is provided on the surface of the reactor body (1); The pressure reducing mechanism includes a connecting pipe (13), and the connecting pipe (13) is connected to the surface of the reactor body (1); A vertical plate (14) is fixedly installed on the top surface of the moving plate (10); A rack (15) is fixedly installed at the top end of the vertical plate (14); A ball valve stem (16) is rotatably connected to the surface of the connecting pipe (13); A gear (17) is fixedly installed on the surface of the ball valve stem (16).

7. The reactor for hydrogen production by methanol solution reforming according to claim 6, wherein: The gear (17) is engaged with the rack (15).

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