A device for the production of hydrogen-rich fuel from methanol

Abstract

The present application relates to fuel production technical field, specifically disclose a kind of methanol preparation hydrogen-rich fuel device, including bottom plate, the bottom plate is equipped with a pair of symmetrically distributed side plate, each side plate is equipped with fixed disc, and is rotationally connected with one transversely placed tank by two fixed discs, the cavity of the tank is equipped with combustion cavity at both ends, the catalyst is equipped in the combustion cavity, the tank is equipped with exhaust pipe;The tank outside is equipped with heating mechanism for heating combustion cavity, the bottom plate is equipped with swing mechanism for driving tank rotation swing;Three-way material pipe is connected through the side plate, and the end portion of three-way material pipe located tank outside is respectively connected with air pump, water pump and pressure pump.The present application whole structure design is compact, can make methanol solution fully react in combustion cavity, produce more hydrogen, greatly improve the output of hydrogen, reduce the effect of loss, greatly improve the efficiency of methanol aqueous solution hydrogen production.

Description

Technical Field

[0001] This invention relates to the field of fuel production technology, and more specifically to a device for producing hydrogen-rich fuel from methanol. Background Technology

[0002] A methanol-to-hydrogen fuel production unit is a device that converts methanol into hydrogen-rich gas. The specific process involves a methanol reforming reaction where methanol reacts with water vapor in the presence of a catalyst to produce hydrogen and carbon dioxide. Then, through a series of gas separation and purification steps, the purified hydrogen-rich gas is extracted.

[0003] Current methanol-to-hydrogen production methods typically involve introducing an aqueous methanol solution into a reactor, where external heating causes the methanol solution to react with a catalyst to produce hydrogen. However, direct external heating easily leads to catalyst pulverization and high-temperature sintering, and uneven internal heating results in incomplete internal chemical reactions and low hydrogen production efficiency. For example, Chinese invention patent application CN201910722797.9 discloses a methanol-to-hydrogen power generation system, specifically a reforming hydrogen production device, including a preheating base, a combustion chamber, a reforming chamber, and a purification chamber arranged sequentially from bottom to top. The combustion chamber provides the heat required for the catalytic reaction in the reforming chamber. However, because the combustion chamber directly heats the reforming chamber, it easily leads to catalyst pulverization and high-temperature sintering, thus affecting hydrogen production efficiency.

[0004] Chinese invention patent application CN 202310677813.3 discloses a methanol-water solution reforming hydrogen production reactor and power generation system. A catalytic burner is installed inside the reforming hydrogen production unit, and heat is conducted through a heat transfer layer between the catalytic burner and the reforming hydrogen production unit to heat the latter. However, both the catalytic burner and the reforming hydrogen production unit are fixed in place, which can easily lead to uneven contact between the reactants and the catalyst, resulting in incomplete internal chemical reactions and low hydrogen production efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a methanol-to-hydrogen-rich fuel device. This device features a compact overall design that allows the methanol solution to react fully within the combustion chamber, generating more hydrogen and significantly increasing hydrogen production while reducing losses. This greatly improves the efficiency of hydrogen production from methanol-water solutions.

[0006] The technical solution of the present invention is: a methanol-to-hydrogen-rich fuel preparation device, comprising a base plate, a pair of symmetrically distributed side plates on the base plate, each side plate having a fixed plate, and a horizontally placed tank being rotatably connected to the two fixed plates. Combustion cavities are provided at both ends of the tank's interior, and a catalyst is placed within each combustion cavity. An exhaust pipe communicating with the interior cavity is provided on the tank. A heating mechanism for heating the combustion cavities is fitted onto the outside of the tank. A swinging mechanism for driving the tank to rotate and swing is provided on the base plate. Three feed pipes are connected through the side plates, and the ends of the three feed pipes located on the outside of the tank are respectively connected to an air pump, a water pump, and a pressure pump.

[0007] Preferably, the heating mechanism includes a hollow cylinder fitted on the outside of the tank body, the hollow cylinder being fixedly connected to a side plate on the adjacent side, and a spiral heating wire being provided on the inner ring surface of the hollow cylinder, with each spiral heating wire suspended and wound around the outer circumference of the tank body.

[0008] Preferably, the swing mechanism includes an arc-shaped rack disposed at the lower end of the outer peripheral surface of the tank, and a servo motor fixed on the base plate, wherein the servo motor is drivenly connected to the arc-shaped rack through a meshing assembly.

[0009] Preferably, the meshing assembly includes a rectangular bracket, on which a sliding plate is slidably connected. The upper end of the sliding plate is connected to a horizontally arranged fixed rack via a set of fixed rods. The fixed rack meshes with the arc-shaped rack. Both sides of the sliding plate are provided with toothed grooves. The output shaft of the servo motor is connected to the toothed grooves via a gear set.

[0010] Preferably, the gear set includes a drive gear mounted on the output shaft of the servo motor, and a linkage shaft rotatably connected to the base plate is provided on each side of the sliding plate. The linkage shaft is provided with a linkage gear that meshes with the drive gear, and a notched gear that meshes with the adjacent tooth groove.

[0011] Preferably, the combustion cavity, feed pipe and heating mechanism are two sets, and are symmetrically distributed at both ends of the tank, while the exhaust pipe is located in the middle of the tank.

[0012] Preferably, the portion of the tank cavity located between the exhaust pipe and the catalyst is provided with a set of filter discs, and activated carbon particles are filled between two adjacent filter discs.

[0013] Preferably, the other end of the feed pipe connected to the pressurizing pump is connected to an annular pipe, which is fixed inside the fixed plate, and a set of pressurizing nozzles facing the combustion cavity are provided on the annular pipe.

[0014] Preferably, annular grooves are provided at both ends of the hollow cylinder, and each annular groove is fitted with a rotatably connected annular retaining ring, and each annular retaining ring is fixedly sleeved on the outer ring surface of the tank.

[0015] Preferably, the catalyst is encapsulated in a columnar mesh chamber, and both ends of the columnar mesh chamber are provided with grooves that are recessed inward.

[0016] Compared with existing technologies, this invention has the following advantages: The methanol-to-hydrogen fuel production device of this invention is equipped with a reciprocating rotating tank, which can promote the full reaction of reactants and catalysts, increase the reaction rate, and solve the problem of poor hydrogen production efficiency of traditional methanol. The overall structure of this invention is compact, which enables the methanol solution to react fully in the combustion cavity. During the reaction, the catalyst is always in motion, which can reduce the probability of high-temperature sintering, produce more hydrogen, greatly improve hydrogen production, reduce losses, and significantly improve the efficiency of methanol-water solution hydrogen production.

[0017] In addition, the catalyst chamber of this invention adopts an irregular structure, which increases the contact efficiency between the reactants and the catalyst, and can further improve the reaction rate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is an exploded cross-sectional view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the explosion of the pressurizing pump, water pump, and air pump of the present invention; Figure 5 This is a schematic diagram of the meshing component structure of the present invention; Figure 6 This is an exploded schematic diagram of the meshing assembly of the present invention; In the picture: 1. Base plate; 11. Side plate; 12. Fixing plate; 13. Pressure pump; 14. Ring pipe; 15. Water pump; 16. Air pump. 2. Tank body; 21. Exhaust pipe; 22. Filter disc; 23. Hollow cylinder; 24. Heating controller; 25. Spiral heating wire; 26. Mesh bin. 3. Servo motor; 31. Drive gear; 32. Linkage shaft; 33. Linkage gear; 34. Notched gear; 35. Rectangular bracket; 36. Sliding plate; 37. Arc rack; 38. Fixed rack; 39. Fixed rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1

[0021] like Figures 1 to 6 A methanol-to-hydrogen-rich fuel production device includes a base plate 1, on which a pair of symmetrically distributed side plates 11 are provided. Each side plate 11 is provided with a fixing plate 12, and a horizontally placed tank body 2 is rotatably connected through the two fixing plates 12.

[0022] Combustion chambers are provided at both ends of the inner cavity of the tank body 2, and a catalyst is provided in the combustion chamber. An exhaust pipe 21 communicating with the inner cavity is provided on the tank body 2.

[0023] A heating mechanism for heating the combustion cavity is fitted on the outside of the tank body 2, and a swing mechanism for driving the tank body 2 to rotate and swing is provided on the bottom plate 1.

[0024] Three feed pipes are connected through the side plate 11. The ends of the three feed pipes located on the outside of the tank body 2 are respectively connected to an air pump 16, a water pump 15 and a pressure pump 13. The other end of the feed pipe connected to the pressure pump 13 is connected to an annular pipe 14. The annular pipe 14 is fixed to the inside of the fixed plate 12. A set of pressure nozzles facing the combustion cavity are provided on the annular pipe 14.

[0025] The combustion chamber, feed pipe and heating mechanism can be two sets, and are symmetrically distributed at both ends of the tank 2. The exhaust pipe 21 is located in the middle of the tank 2. The symmetrical arrangement of two sets can increase the reaction space, thereby improving production efficiency.

[0026] In use, the heating mechanism first preheats and keeps the combustion cavity warm. Under the action of the pressurizing pump 13, the methanol liquid enters the annular pipe 14 through the feed pipe and is sprayed into the combustion cavity for combustion through several pressurizing nozzles.

[0027] Water enters the combustion chamber under the action of water pump 15, and outside air enters the combustion chamber under the action of air pump 16 to assist combustion.

[0028] A high-temperature and high-pressure reaction environment is created in the combustion cavity, which causes methanol liquid and air to burn and mix with water, forming hydrogen and carbon dioxide under the action of a catalyst.

[0029] In addition, the oscillating mechanism of the tank 2 during the reaction promotes the full reaction between the reactants and the catalyst, increases the reaction rate, and keeps the catalyst in motion, which reduces the probability of high-temperature sintering.

[0030] Example 2

[0031] This embodiment is a further optimization based on the above embodiment. Specifically, the heating mechanism includes a hollow cylinder 23 fitted on the outside of the tank body 2. The hollow cylinder 23 is fixedly connected to the side plate 11 on the adjacent side. A spiral heating wire 25 is provided on the inner ring surface of the hollow cylinder 23. Each spiral heating wire 25 is suspended and wound around the outer circumference of the tank body 2.

[0032] Both ends of the hollow cylinder 23 are provided with annular grooves, and each annular groove is fitted with a rotating annular retaining ring. Each annular retaining ring is fixedly sleeved on the outer ring surface of the tank body 2.

[0033] A heating controller 24 is fixedly installed in the middle of the top surface of the hollow cylinder 23. The heating controller 24 is electrically connected to the spiral heating wire 25 by wire. The heating controller 24 energizes the spiral heating wire 25, and the spiral heating wire 25 heats the combustion cavities on both sides of the tank body 2 at high temperature.

[0034] Example 3

[0035] This embodiment is a further optimization based on the above embodiment. Specifically, the swing mechanism includes an arc-shaped rack 37 disposed at the lower end of the outer peripheral surface of the tank 2, and a servo motor 3 fixed on the base plate 1. The servo motor 3 is driven and connected to the arc-shaped rack 37 through a meshing component.

[0036] The meshing assembly includes a rectangular card holder 35, on which a sliding plate 36 is horizontally slidably connected. The upper end of the sliding plate 36 is connected to a horizontally arranged fixed rack 38 through a set of fixed rods 39. The fixed rack 38 meshes with an arc-shaped rack 37. Both sides of the sliding plate 36 are provided with toothed grooves. The output shaft of the servo motor 3 is connected to the toothed grooves through a gear set.

[0037] The gear set includes a drive gear 31 mounted on the output shaft of the servo motor 3, and a linkage shaft 32 rotatably connected to the base plate 1 on each side of the sliding plate 36. The linkage shaft 32 is provided with a linkage gear 33 that meshes with the drive gear 31, and a notched gear 34 that meshes with the adjacent tooth groove.

[0038] When the servo motor 3 is working, it drives the sliding plate 36 to slide back and forth horizontally by alternately meshing with the toothed grooves on both sides of the sliding plate 36 through a pair of notched gears 34. Then, it drives the fixed rack 38 to slide back and forth through the fixed rod 39. The arc-shaped rack 37 that meshes with the fixed rack 38 drives the tank body 2 and the limit ring to rotate back and forth along the axis.

[0039] Example 4

[0040] This embodiment is a further optimization based on the above embodiment. Specifically, a set of filter discs 22 is provided in the part of the tank 2 located between the exhaust pipe 21 and the catalyst, and activated carbon particles are filled between two adjacent filter discs 22.

[0041] During the combustion reaction, liquid methanol and air are burned and mixed with water. Under the action of a catalyst, hydrogen and carbon dioxide are formed. After being filtered by several filter discs 22 and activated carbon particles, the hydrogen and carbon dioxide are discharged through the exhaust pipe 21 and collected and separated to obtain the required hydrogen. The gas can be purified by the activated carbon particles.

[0042] Example 5

[0043] This embodiment is a further optimization based on the above embodiment. Specifically, the catalyst is encapsulated in a columnar mesh chamber 26, and grooves that are recessed inward are provided on both end faces of the columnar mesh chamber 26.

[0044] To improve the catalytic efficiency of the catalyst, a columnar mesh chamber 26 for encapsulating the catalyst is set in the combustion cavity. The surface of the columnar mesh chamber 26 has abundant pores, which allows the gas to enter the catalytic cavity through the pores and make more uniform contact with the catalyst, thereby improving the catalytic efficiency.

[0045] In addition, inwardly recessed grooves are provided on both ends of the columnar mesh chamber 26 to increase the contact area between the catalyst and the gas, thereby further improving the catalytic efficiency.

Claims

1. A methanol-to-hydrogen-rich fuel production apparatus, comprising a base plate, wherein a pair of symmetrically distributed side plates are provided on the base plate, characterized in that: Each side plate is equipped with a fixing plate, and a horizontally placed tank is rotatably connected to two fixing plates. The tank has combustion chambers at both ends, and a catalyst is placed in the combustion chambers. The tank has an exhaust pipe communicating with the inner cavity. A heating mechanism for heating the combustion chambers is fitted on the outside of the tank. A swing mechanism for driving the tank to rotate and swing is provided on the bottom plate. Three material pipes are connected through the side plates. The ends of the three material pipes located on the outside of the tank are respectively connected to an air pump, a water pump, and a pressure pump.

2. The methanol-to-hydrogen-rich fuel apparatus according to claim 1, characterized in that: The heating mechanism includes a hollow cylinder fitted on the outside of the tank body. The hollow cylinder is fixedly connected to a side plate on the adjacent side. A spiral heating wire is provided on the inner ring surface of the hollow cylinder, and each spiral heating wire is suspended and wound around the outer circumference of the tank body.

3. The methanol-to-hydrogen-rich fuel apparatus according to claim 1, characterized in that: The swing mechanism includes an arc-shaped rack disposed at the lower end of the outer peripheral surface of the tank, and a servo motor fixed on the base plate. The servo motor is driven to connect with the arc-shaped rack through a meshing assembly.

4. The methanol-to-hydrogen-rich fuel apparatus according to claim 3, characterized in that: The meshing assembly includes a rectangular bracket, on which a sliding plate is slidably connected. The upper end of the sliding plate is connected to a horizontally arranged fixed rack via a set of fixed rods. The fixed rack meshes with the arc-shaped rack. Both sides of the sliding plate are provided with toothed grooves. The output shaft of the servo motor is connected to the toothed grooves via a gear set.

5. The methanol-to-hydrogen-rich fuel apparatus according to claim 4, characterized in that: The gear set includes a drive gear mounted on the output shaft of the servo motor. Each side of the sliding plate is provided with a linkage shaft that is rotatably connected to the base plate. The linkage shaft is provided with a linkage gear that meshes with the drive gear and a notched gear that meshes with the adjacent tooth groove.

6. The methanol-to-hydrogen-rich fuel apparatus according to claim 1, characterized in that: The combustion chamber, feed pipe, and heating mechanism are two sets, symmetrically distributed at both ends of the tank, and the exhaust pipe is located in the middle of the tank.

7. A methanol-to-hydrogen-rich fuel apparatus according to claim 1 or 6, characterized in that: The portion of the tank cavity located between the exhaust pipe and the catalyst is equipped with a set of filter discs, and activated carbon particles are filled between two adjacent filter discs.

8. A methanol-to-hydrogen-rich fuel apparatus according to claim 1 or 6, characterized in that: The other end of the feed pipe connected to the pressurizing pump is connected to an annular pipe, which is fixed inside the fixed plate. A set of pressurizing nozzles facing the combustion cavity are provided on the annular pipe.

9. A methanol-to-hydrogen-rich fuel apparatus according to claim 1 or 6, characterized in that: The hollow cylinder has annular grooves at both ends, and each annular groove has a rotatably connected annular retaining ring inside, with each annular retaining ring fixedly fitted onto the outer ring surface of the tank.

10. A methanol-to-hydrogen-rich fuel apparatus according to claim 1, characterized in that: The catalyst is encapsulated in a columnar mesh chamber, and both ends of the columnar mesh chamber are provided with grooves that are recessed inward.

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