Reforming device for producing hydrogen from methanol

Abstract

The utility model discloses a methanol hydrogen production reforming device which comprises a mounting seat, a reformer is fixedly embedded in the top end of the mounting seat, an air inlet, an air outlet and a methanol inlet are formed in the bottom of the reformer, an air inlet pipeline fixedly penetrates through the air inlet, and an air outlet pipeline fixedly penetrates through the methanol inlet. A plate heat exchanger fixedly penetrates through one end of the air inlet pipeline, the plate heat exchanger is fixedly connected with the mounting base, and an air supply assembly is jointly mounted between the cold medium input end of the plate heat exchanger and the mounting base; and the air outlet and the heat medium input end of the plate heat exchanger are jointly and fixedly communicated with a waste gas outlet pipeline. According to the utility model, through the arrangement of the sleeve radiator and the plate heat exchanger, the high temperature of the discharged hydrogen-rich gas and waste gas is respectively utilized to heat the entering methanol water and air, and an external heating device is not needed, so that not only can the heat utilization rate be improved, but also the use energy consumption is reduced.

Description

Technical Field

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

[0002] Methanol-to-hydrogen reforming utilizes catalytic reforming technology to convert a methanol-water solution, which is liquid at room temperature, into hydrogen-rich gas. The output gas from this device is primarily hydrogen, but may also contain other components such as carbon dioxide and carbon monoxide. The reforming unit operates on the principle of methanol reforming technology, converting methanol and water into hydrogen through heating and the action of a catalyst. This technology is widely used not only in industry but also in the automotive sector.

[0003] At present, the exhaust gas generated by the reformer generally contains a large amount of heat. If it is discharged directly, it will increase heat loss and waste energy. The air entering the reformer needs to be heated separately, which undoubtedly increases the energy consumption of the reformer. The methanol water entering the reformer also needs to be heated, and the above problems also exist. Therefore, improvements are proposed. Utility Model Content

[0004] The utility model is a reforming device for producing hydrogen from methanol, which is proposed to solve the shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a reforming device for producing hydrogen from methanol, comprising a mounting base, a reformer fixedly embedded in the top of the mounting base, an air inlet, an air outlet, and a methanol inlet formed at the bottom of the reformer, an air inlet pipe fixedly extending through the air inlet, a plate heat exchanger fixedly extending through one end of the air inlet pipe, the plate heat exchanger and the mounting base being fixedly connected, an air supply assembly being installed between the cold medium input end of the plate heat exchanger and the mounting base;

[0006] The air outlet and the heat medium input end of the plate heat exchanger are both fixedly connected with an exhaust gas outlet pipe, and the heat medium output end of the plate heat exchanger is fixedly connected with an exhaust gas outlet;

[0007] A methanol supply assembly is installed between the methanol inlet and the mounting seat;

[0008] A hydrogen-rich gas inlet pipeline assembly is installed between the reformer and the mounting base;

[0009] A sleeve radiator is fixedly installed on the inner top of the mounting seat, and a hydrogen-rich gas discharge pipe and a methanol-water inlet pipe are fixedly passed through the sleeve radiator and the reformer;

[0010] A methanol-water supply component is installed between the sleeve radiator and the mounting seat.

[0011] Furthermore, the air supply assembly includes an air pump, and the air pump is fixedly mounted on one side of the outer surface of the mounting base. The air pump is provided with an air inlet, and an air circulation channel is fixedly connected between the output end of the air pump and the cold medium input end of the plate heat exchanger, so that air can be transported into the plate heat exchanger.

[0012] Furthermore, the methanol supply assembly includes a methanol pump, and the methanol pump is fixedly installed on the top of the mounting base. The input end of the methanol pump is fixedly penetrated by a methanol inlet, the output end of the methanol pump is fixedly penetrated by a methanol pipeline, and the methanol pipeline and the methanol inlet are fixedly penetrated, so that pure methanol can be transported to the reformer.

[0013] Furthermore, the hydrogen-rich gas inlet pipeline assembly includes a hydrogen-rich gas inlet pipeline, and the hydrogen-rich gas inlet pipeline passes through the mounting base and is fixedly connected thereto. A hydrogen-rich gas inlet is fixedly passed through the hydrogen-rich gas inlet pipeline and the reformer, and a hydrogen-rich gas inlet is fixedly passed through the other end of the hydrogen-rich gas inlet pipeline, which is conducive to the hydrogen-rich gas discharged from the fuel cell stack entering the reformer.

[0014] Furthermore, the outer surface of the sleeve radiator is fixedly penetrated with a cold medium inlet, a cold medium outlet, a hot medium inlet and a hot medium outlet, and the hot medium outlet is fixedly penetrated with a hydrogen-rich gas exhaust pipe, thereby forming a complete sleeve radiator.

[0015] Furthermore, the hydrogen-rich gas discharge pipe includes a hydrogen-rich gas outlet, and the hydrogen-rich gas outlet is fixedly connected to the reformer. A hydrogen-rich gas pipeline is fixedly connected between one end of the hydrogen-rich gas outlet and the heat medium inlet, which can introduce the discharged hydrogen-rich gas into the sleeve radiator.

[0016] Furthermore, the methanol water inlet pipe includes a methanol water inlet, and the methanol water inlet is fixedly connected to the reformer. A first methanol water pipeline is fixedly connected between the methanol water inlet and the cold medium outlet, which is conducive to the methanol water after heat exchange entering the reformer.

[0017] Furthermore, the methanol water supply assembly includes a methanol water pump, and the methanol water pump is fixedly installed on the top of the mounting base. The input end of the methanol water pump is fixedly penetrated with a methanol water inlet, and a second methanol water pipe is fixedly penetrated between the methanol water pump and the cold medium inlet, which can transport the methanol water to the sleeve radiator.

[0018] Beneficial effects of the utility model:

[0019] When the utility model is in use, the reforming device for producing hydrogen from methanol utilizes the high temperatures of the discharged hydrogen-rich gas and the exhaust gas to heat the incoming methanol water and air respectively through the provided shell and tube radiator and the plate heat exchanger, without the need for an external heating device, which not only improves the heat utilization rate but also reduces the energy consumption.

[0020] When the utility model is in use, the reforming device for producing hydrogen from methanol controls the liquid raw material feed rate through the methanol pump and the methanol water pump, controls the gas feed rate through the gas pump, and utilizes the temperature feedback value as a control parameter to maintain the most suitable reaction temperature and maximize the gas production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the specific implementation methods. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 : Bottom view of the utility model;

[0023] Figure 2 : The main view of the utility model;

[0024] Figure 3 : A top view of the utility model;

[0025] Figure 4 : Bottom view of the reformer of the present invention;

[0026] Figure 5 : Schematic diagram of the structure of the sleeve radiator of the present utility model.

[0027] The reference numerals are as follows:

[0028] 1. Air inlet; 2. Air pump; 3. Air circulation channel; 4. Mounting base; 5. Reformer; 6. Hydrogen-rich gas inlet; 7. Methanol-water inlet; 8. Methanol-water pump; 9. Hydrogen-rich gas exhaust pipe; 10. Methanol pump; 11. Methanol inlet; 12. Plate heat exchanger; 13. Exhaust gas outlet; 14. First methanol-water pipeline; 15. Hydrogen-rich gas pipeline; 16. Jacketed radiator; 17. Methanol pipeline; 18. Hydrogen-rich gas inlet pipeline; 19. Air inlet pipeline; 20. Exhaust gas outlet pipeline; 21. Hydrogen-rich gas outlet; 22. Methanol-water inlet; 23. Hydrogen-rich gas inlet; 24. Air inlet; 25. Air outlet; 26. Methanol inlet; 27. Cold medium outlet; 28. Hot medium inlet; 29. Hot medium outlet; 30. Cold medium inlet; 31. Second methanol-water pipeline. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1 to 5 As shown, a reforming device for producing hydrogen from methanol is provided, comprising a mounting base 4, a reformer 5 being fixedly embedded at the top of the mounting base 4, an air inlet 24, an air outlet 25 and a methanol inlet 26 being provided at the bottom of the reformer 5, an air inlet pipe 19 being fixedly passed through the air inlet 24, one end of the air inlet pipe 19 being fixedly passed through a plate heat exchanger 12, and the plate heat exchanger 12 and the mounting base 4 being fixedly connected, an air supply assembly being jointly installed between the cold medium input end of the plate heat exchanger 12 and the mounting base 4, the air supply assembly comprising an air pump 2, and the air pump 2 being fixedly installed on one side of the outer surface of the mounting base 4, the air pump 2 being provided with an air inlet 1, an air circulation channel 3 being fixedly passed through between the output end of the air pump 2 and the cold medium input end of the plate heat exchanger 12, an air filter being installed at the air inlet 1 to filter the incoming air and ensure the cleanliness of the incoming air.

[0031] The air outlet 25 and the heat medium input end of the plate heat exchanger 12 are both fixedly connected with an exhaust gas outlet pipe 20 , and the heat medium output end of the plate heat exchanger 12 is fixedly connected with an exhaust gas outlet 13 .

[0032] A methanol supply assembly is installed between the methanol inlet 26 and the mounting base 4. The methanol supply assembly includes a methanol pump 10, and the methanol pump 10 is fixedly installed on the top of the mounting base 4. The input end of the methanol pump 10 is fixedly penetrated by a methanol inlet 11, and the output end of the methanol pump 10 is fixedly penetrated by a methanol pipeline 17, and the methanol pipeline 17 and the methanol inlet 26 are fixedly penetrated. The methanol inlet 11 is connected to an external methanol storage, which is conducive to the methanol pump 10 transporting methanol to the reformer 5.

[0033] A hydrogen-rich gas inlet pipe assembly is installed between the reformer 5 and the mounting base 4. The hydrogen-rich gas inlet pipe assembly includes a hydrogen-rich gas intake pipe 18, and the hydrogen-rich gas intake pipe 18 is arranged through the mounting base 4 and is fixedly connected thereto. A hydrogen-rich gas inlet 23 is fixedly passed through the hydrogen-rich gas intake pipe 18 and the reformer 5. A hydrogen-rich gas inlet 6 is fixedly passed through the other end of the hydrogen-rich gas intake pipe 18. The hydrogen-rich gas inlet 6 is connected to the external fuel cell stack hydrogen-rich gas exhaust pipe, allowing the hydrogen-rich gas generated in the fuel cell stack to enter the reformer 5.

[0034] A sleeve radiator 16 is fixedly installed on the inner top of the mounting base 4. A hydrogen-rich gas exhaust pipe and a methanol-water inlet pipe are fixedly passed through the sleeve radiator 16 and the reformer 5. A methanol-water supply assembly is installed between the sleeve radiator 16 and the mounting base 4. A cold medium inlet 30, a cold medium outlet 27, a hot medium inlet 28 and a hot medium outlet 29 are fixedly passed through the outer surface of the sleeve radiator 16. The hot medium outlet 29 is fixedly passed through the hydrogen-rich gas exhaust pipe 9. The hydrogen-rich gas exhaust pipe includes a hydrogen-rich gas outlet 21, and the hydrogen-rich gas outlet 21 is fixedly passed through the reformer 5. One end of the hydrogen-rich gas outlet 21 is connected to the hot medium inlet 2 8 are fixedly penetrated by a hydrogen-rich gas pipeline 15, the methanol water entering pipe fitting includes a methanol water inlet 22, and the methanol water inlet 22 is fixedly penetrated by the reformer 5, a first methanol water pipeline 14 is fixedly penetrated between the methanol water inlet 22 and the cold medium outlet 27, the methanol water supply assembly includes a methanol water pump 8, and the methanol water pump 8 is fixedly installed on the top of the mounting seat 4, a methanol water inlet 7 is fixedly penetrated at the input end of the methanol water pump 8, a second methanol water pipeline 31 is fixedly penetrated between the methanol water pump 8 and the cold medium inlet 30, the methanol water inlet 7 is connected to an external methanol water reservoir, so that the methanol water pump 8 can transport methanol to the reformer 5.

[0035] Working principle:

[0036] Step 1: Air passes through the air inlet 1 and, under the action of the air pump 2, passes through the air circulation channel 3 and enters the plate heat exchanger 12. The high-temperature gas then flows out of the plate heat exchanger 12, passes through the air inlet pipe 19, and enters the combustion chamber of the reformer 5 through the air inlet 24.

[0037] Step 2: Methanol passes through the methanol inlet 11, under the action of the methanol pump 10, through the methanol pipeline 17, and enters the reformer 5 combustion chamber through the methanol inlet 26; the hydrogen-rich gas from the fuel cell stack passes through the hydrogen-rich gas inlet pipeline 18 and enters the reformer 5 combustion chamber through the hydrogen-rich gas inlet 23 from the fuel cell stack;

[0038] Step 3: The gas and liquid from steps 1 and 2 enter and burn, producing a large amount of heat;

[0039] Step 4: The exhaust gas generated by the combustion in step 3 is discharged through the air outlet 25 of the reformer 5, enters the plate heat exchanger 12 through the exhaust gas outlet pipe 20, and is discharged through the exhaust gas outlet 13. In this process, the air and the exhaust gas exchange heat, improving the heat utilization rate;

[0040] Step 5: Methanol water passes through the methanol water inlet 7 and, under the action of the methanol water pump 8, enters the sleeve radiator 16 through the second methanol water pipe 31. The high-temperature methanol water then flows out of the sleeve radiator 16, passes through the first methanol water pipe 14, and enters the reaction zone of the reformer 5 through the methanol water inlet 22. The heat generated in step 3 is used to react to produce hydrogen-rich gas, which enters the sleeve radiator 16 through the hydrogen-rich gas outlet 21. The hydrogen-rich gas then flows out of the sleeve radiator 16 and passes through the hydrogen-rich gas outlet 21 to produce hydrogen.

[0041] Step 6: Hydrogen-rich gas enters the heat medium inlet 28 of the double-tube radiator 16 and flows out of the heat medium outlet 29. Methanol-water enters the cold medium inlet 30 of the double-tube radiator 16 and flows out of the cold medium outlet 27. Once again, the hydrogen-rich gas from the reformer exchanges heat with the methanol-water entering the reformer, improving heat utilization.

[0042] During this reaction, the liquid feed rate is controlled by methanol pump 10 and methanol-water pump 8, while the gas feed rate is controlled by gas pump 2. The temperature feedback value of reformer 5 itself is used as a control parameter to maintain the optimal reaction temperature and maximize gas production.

[0043] It should be noted that the specific models and specifications of the air pump 2, reformer 5, methanol water pump 8, methanol pump 10, plate heat exchanger 12 and sleeve radiator 16 are determined according to actual usage.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reforming device for producing hydrogen from methanol, comprising a mounting seat (4), characterized in that: The top of the mounting seat (4) is fixedly embedded with a reformer (5), and the bottom of the reformer (5) is provided with an air inlet (24), an air outlet (25), and a methanol inlet (26). The air inlet (24) is fixedly penetrated by an air inlet pipe (19), and one end of the air inlet pipe (19) is fixedly penetrated by a plate heat exchanger (12), and the plate heat exchanger (12) and the mounting seat (4) are fixedly connected. An air supply component is installed between the cold medium input end of the plate heat exchanger (12) and the mounting seat (4); The air outlet (25) and the heat medium input end of the plate heat exchanger (12) are both fixedly connected to an exhaust gas outlet pipe (20), and the heat medium output end of the plate heat exchanger (12) is fixedly connected to an exhaust gas outlet (13); A methanol supply assembly is installed between the methanol inlet (26) and the mounting seat (4); A hydrogen-rich gas inlet pipeline assembly is installed between the reformer (5) and the mounting base (4); A sleeve radiator (16) is fixedly mounted on the inner top of the mounting seat (4), and a hydrogen-rich gas discharge pipe and a methanol-water inlet pipe are fixedly connected between the sleeve radiator (16) and the reformer (5); A methanol-water supply assembly is installed between the sleeve radiator (16) and the mounting seat (4).

2. A methanol-to-hydrogen reforming device according to claim 1, characterized in that: The air supply assembly includes an air pump (2), and the air pump (2) is fixedly mounted on one side of the outer surface of the mounting base (4). The air pump (2) is provided with an air inlet (1), and an air circulation channel (3) is fixedly connected between the output end of the air pump (2) and the cold medium input end of the plate heat exchanger (12).

3. The methanol-to-hydrogen reforming device according to claim 1, characterized in that: The methanol supply assembly includes a methanol pump (10), and the methanol pump (10) is fixedly mounted on the top of the mounting base (4). The input end of the methanol pump (10) is fixedly penetrated by a methanol inlet (11), and the output end of the methanol pump (10) is fixedly penetrated by a methanol pipeline (17), and the methanol pipeline (17) and the methanol inlet (26) are fixedly penetrated.

4. The methanol-to-hydrogen reforming device according to claim 1, characterized in that: The hydrogen-rich gas inlet pipeline assembly includes a hydrogen-rich gas inlet pipeline (18), and the hydrogen-rich gas inlet pipeline (18) is arranged through the mounting base (4) and is fixedly connected thereto. A hydrogen-rich gas inlet (23) is fixedly passed through the hydrogen-rich gas inlet pipeline (18) and the reformer (5), and a hydrogen-rich gas inlet (6) is fixedly passed through the other end of the hydrogen-rich gas inlet pipeline (18).

5. The methanol-to-hydrogen reforming device according to claim 1, characterized in that: A cold medium inlet (30), a cold medium outlet (27), a hot medium inlet (28) and a hot medium outlet (29) are fixedly passed through the outer surface of the sleeve radiator (16); a hydrogen-rich gas discharge pipe (9) is fixedly passed through the hot medium outlet (29).

6. A methanol-to-hydrogen reforming device according to claim 5, characterized in that: The hydrogen-rich gas discharge pipe comprises a hydrogen-rich gas outlet (21), and the hydrogen-rich gas outlet (21) is fixedly connected to the reformer (5), and a hydrogen-rich gas pipeline (15) is fixedly connected between one end of the hydrogen-rich gas outlet (21) and the heat medium inlet (28).

7. The methanol-to-hydrogen reforming device according to claim 5, characterized in that: The methanol water inlet pipe includes a methanol water inlet (22), and the methanol water inlet (22) is fixedly connected to the reformer (5). A first methanol water pipeline (14) is fixedly connected between the methanol water inlet (22) and the cold medium outlet (27).

8. The methanol-to-hydrogen reforming device according to claim 5, characterized in that: The methanol water supply assembly includes a methanol water pump (8), and the methanol water pump (8) is fixedly mounted on the top of the mounting base (4). The input end of the methanol water pump (8) is fixedly connected to a methanol water inlet (7). A second methanol water pipeline (31) is fixedly connected between the methanol water pump (8) and the cold medium inlet (30).

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