Methanol power generation reforming device

Abstract

The methanol power generation reforming device comprises a shell, an inner ring heat conduction profile is arranged in the center of the interior of the shell, an outer ring heat conduction profile is attached to the inner side wall of the shell, and a plurality of reforming catalyst filling cavities are formed between the inner ring heat conduction profile and the outer ring heat conduction profile; a flameless combustion catalyst filling cavity is formed in the top end of the interior of the inner ring heat conduction profile. According to the device, the shell is arranged, the eight reforming catalyst filling cavities are formed in the shell, reaction spaces are provided for catalysts, in addition, the methanol water coil pipe, the flameless combustion catalyst filling cavity, the flameless combustion catalyst isolation pipe, the pure methanol coil pipe, the ignition needle, the flame combustion cavity and the combustion air channel are integrated into the shell, and the methanol water coil pipe, the flameless combustion catalyst filling cavity, the flameless combustion catalyst isolation pipe and the pure methanol coil pipe are integrated into the shell; high integration of the methanol power generation reforming device is realized, so that the size of the device is reduced, more space can be saved during actual installation, and the internal structure of the shell is neatly arranged, so that subsequent overhaul and maintenance operations are facilitated.

Description

Technical Field

[0001] This invention relates to the field of methanol power generation reformer technology, and more particularly to a methanol power generation reforming device. Background Technology

[0002] The principle of methanol power generation reforming is to convert a methanol-water mixture into hydrogen-rich reformed gas using a methanol reformer, and then use this gas to generate electricity in a fuel cell. The methanol reformer is the core component of the methanol power generation system. Inside the reformer, the methanol-water mixture produces hydrogen through a chemical reaction. This process typically requires a catalyst to accelerate the reaction; commonly used catalysts include copper-based catalysts and silver-based catalysts.

[0003] The chemical reaction is as follows: under the action of a catalyst, methanol and water undergo a reforming reaction to produce hydrogen, carbon dioxide, and heat. The working principle of the fuel cell is as follows: the generated hydrogen enters a high-temperature proton exchange membrane stack, where hydrogen and oxygen undergo an electrochemical reaction to produce water and release electrical energy. In this way, hydrogen is converted into electrical energy in the fuel cell to supply power to vehicles or other equipment.

[0004] The advantages of methanol reforming for hydrogen production and hydrogen-electric hybrid fuel cell technology include: lower power generation costs; low noise during operation, making it suitable for applications requiring a quiet environment; and relatively low environmental performance, with system emissions primarily consisting of water vapor and carbon dioxide. This technology has been successfully applied in the electric vehicle sector and is considered one of the effective solutions to the challenges of diesel engine replacement and hydrogen storage and transportation. However, existing methanol reforming generators are bulky and have low integration levels, hindering the creation of more installation space. Therefore, this invention addresses these shortcomings by proposing an integrated methanol reforming generator. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a methanol power generation reforming device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a methanol power generation reforming device, comprising a shell, an inner ring heat-conducting profile located at the center of the shell, and an outer ring heat-conducting profile attached to the inner sidewall of the shell, a plurality of reforming catalyst-filled chambers being provided between the inner and outer ring heat-conducting profiles, the top of the inner ring heat-conducting profile being a flameless combustion catalyst-filled chamber, and a methanol-water coil being attached to the inner wall of the flameless combustion catalyst-filled chamber, a flameless combustion catalyst isolation tube being sleeved inside the methanol-water coil, a pure methanol coil being sleeved on the bottom surface of the flameless combustion catalyst isolation tube, a tail gas outlet and an air inlet being provided at the bottom of the shell, a flame combustion chamber, a combustion air passage and a combustion tail gas passage being provided at the bottom of the shell, and a fuel cell tail gas inlet, a methanol-water inlet, a hydrogen-rich gas outlet and a pure methanol inlet being provided on the side of the bottom of the shell away from the tail gas outlet.

[0007] Furthermore, the plurality of reforming catalyst-filled chambers include a first reforming catalyst-filled chamber, a second reforming catalyst-filled chamber, a third reforming catalyst-filled chamber, a fourth reforming catalyst-filled chamber, a fifth reforming catalyst-filled chamber, a sixth reforming catalyst-filled chamber, a seventh reforming catalyst-filled chamber, and an eighth reforming catalyst-filled chamber, which are sequentially connected.

[0008] Furthermore, a combustion air passage is connected between the air inlet and the flame combustion chamber.

[0009] Furthermore, the tail gas inlet of the fuel cell stack is connected to the flame combustion chamber, the methanol-water inlet is connected to the methanol-water coil, the methanol-water coil outlet is connected to the first chamber filled with reforming catalyst, and the outlet of the eighth chamber filled with reforming catalyst is connected to the hydrogen-rich gas outlet.

[0010] Furthermore, the pure methanol inlet is connected to the pure methanol coil, and a nozzle is connected to the tail end of the pure methanol coil. The nozzle is located inside the flame combustion chamber, and an ignition needle is installed inside the flame combustion chamber, with an ignition needle fixing sleeve fixed to the outside of the ignition needle.

[0011] Furthermore, thermocouple sheaths are installed at the bottom of the interior of each of the multiple filled reforming catalyst chambers, and a thermocouple is installed inside each thermocouple sheath.

[0012] Furthermore, the flame combustion chamber, the chamber filled with flameless combustion catalyst, are connected to the combustion exhaust gas passage and the exhaust gas outlet.

[0013] Furthermore, the bottom and top of the first, second, third, fourth, fifth, sixth, seventh, and eighth reforming catalyst-filled chambers are respectively provided with a lower reforming chamber channel and an upper reforming chamber channel.

[0014] The beneficial effects of this invention are:

[0015] In use, this invention provides a methanol power generation reforming device with an outer shell containing eight chambers filled with reforming catalyst to provide reaction space for the catalyst. Furthermore, by integrating the methanol-water coil, the chamber filled with flameless combustion catalyst, the flameless combustion catalyst isolation tube, the pure methanol coil, the ignition needle, the flaming combustion chamber, and the combustion air passage into the outer shell, the methanol power generation reforming device achieves high integration, thereby reducing the device's size and saving more space during actual installation. The neat arrangement of the internal structure also facilitates subsequent inspection and maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 Top view of the present invention;

[0018] Figure 2 : Front view of the present invention;

[0019] Figure 3 : Main sectional view of the present invention;

[0020] Figure 4 : Bottom view of the present invention;

[0021] Figure 5 : Side sectional view of the present invention.

[0022] The attached figures are labeled as follows:

[0023] 1. Exhaust gas outlet; 2. Air inlet; 3. Stack exhaust gas inlet; 4. Methanol-water inlet; 5. Hydrogen-rich gas outlet; 6. Pure methanol inlet; 7. First chamber filled with reforming catalyst; 8. Second chamber filled with reforming catalyst; 9. Third chamber filled with reforming catalyst; 10. Fourth chamber filled with reforming catalyst; 11. Fifth chamber filled with reforming catalyst; 12. Sixth chamber filled with reforming catalyst; 13. Seventh chamber filled with reforming catalyst; 14. [Further details about the first chamber are needed for accurate translation.] Eight chambers; 15. Inner ring heat-conducting profile; 16. Outer ring heat-conducting profile; 17. Methanol-water coil; 18. Chamber filled with flameless combustion catalyst; 19. Outer shell; 20. Flameless combustion catalyst isolation tube; 21. Pure methanol coil; 22. Nozzle; 23. Lower channel of reforming chamber; 24. Ignition needle; 25. Ignition needle fixing sleeve; 26. Upper channel of reforming chamber; 27. Flaming combustion chamber; 28. Combustion air channel; 29. ​​Combustion exhaust gas channel; 30. Thermocouple sheath. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1-5 As shown, a methanol power generation reforming device is disclosed, comprising a housing 19, an inner ring heat-conducting profile 15 located at the center of the housing 19, and an outer ring heat-conducting profile 16 attached to the inner sidewall of the housing 19. Multiple reforming catalyst-filled chambers are located between the inner ring heat-conducting profile 15 and the outer ring heat-conducting profile 16. The top of the inner ring heat-conducting profile 15 is a flameless combustion catalyst-filled chamber 18, and a methanol-water coil 17 is attached to the inner wall of the flameless combustion catalyst-filled chamber 18. A flameless combustion catalyst isolation tube 20 is sleeved inside the methanol-water coil 17, and a pure methanol coil 21 is sleeved on the bottom surface of the flameless combustion catalyst isolation tube 20. A tail gas outlet 1 and an air inlet 2 are located at the bottom of the housing 19. A flame combustion chamber 27, a combustion air passage 28, and a combustion tail gas passage 29 are located at the bottom of the housing 19. A fuel cell tail gas inlet 3, a methanol-water inlet 4, a hydrogen-rich gas outlet 5, and a pure methanol inlet 6 are located on the side of the bottom of the housing 19 furthest from the tail gas outlet 1.

[0026] Multiple reforming catalyst-filled chambers include a first reforming catalyst-filled chamber 7, a second reforming catalyst-filled chamber 8, a third reforming catalyst-filled chamber 9, a fourth reforming catalyst-filled chamber 10, a fifth reforming catalyst-filled chamber 11, a sixth reforming catalyst-filled chamber 12, a seventh reforming catalyst-filled chamber 13, and an eighth reforming catalyst-filled chamber 14, which are sequentially connected.

[0027] A combustion air passage 28 is connected between the air inlet 2 and the flame combustion chamber 27.

[0028] The fuel cell stack exhaust gas inlet 3 is connected to the flame combustion chamber 27, the methanol-water inlet 4 is connected to the methanol-water coil 17, the outlet of the methanol-water coil 17 is connected to the first chamber 7 filled with reforming catalyst, and the outlet of the eighth chamber 14 filled with reforming catalyst is connected to the hydrogen-rich gas outlet 5.

[0029] A pure methanol inlet 6 is connected to a pure methanol coil 21. A nozzle 22 is connected to the tail end of the pure methanol coil 21. The nozzle 22 is located inside the flaming combustion chamber 27. An ignition needle 24 is installed inside the flaming combustion chamber 27, and an ignition needle retaining sleeve 25 is fixed to the outside of the ignition needle 24. The ignition needle retaining sleeve 25 serves to fix the ignition needle 24.

[0030] Thermocouple sheaths 30 are installed at the bottom of the interior of multiple reforming catalyst chambers, and a thermocouple is installed inside each thermocouple sheath 30.

[0031] The flame combustion chamber 27, the flameless combustion catalyst-filled chamber 18, the combustion exhaust gas passage 29, and the exhaust gas outlet 1 are connected.

[0032] The bottom and top of the first chamber 7, the second chamber 8, the third chamber 9, the fourth chamber 10, the fifth chamber 11, the sixth chamber 12, the seventh chamber 13, and the eighth chamber 14 filled with reforming catalyst are respectively provided with a lower reforming chamber channel 23 and an upper reforming chamber channel 26.

[0033] Working principle:

[0034] 1. Outside air enters the combustion chamber 27 through air inlet 2 and combustion air passage 28;

[0035] 2. Pure methanol enters the pure methanol coil 21 through the pure methanol inlet 6. The pure methanol coming out of the coil enters the flame combustion chamber 27 through the nozzle 22. Air and pure methanol are burned under the action of the ignition needle 24 to produce hot gas.

[0036] 3. The hydrogen-containing gas mixture from the fuel cell stack enters the flame combustion chamber 27 through the fuel cell stack tail gas inlet 3 to participate in combustion;

[0037] IV. Methanol-water enters methanol-water coil 17 through methanol-water inlet 4. The methanol-water (high-temperature liquid) coming out of methanol-water coil 17 sequentially enters reforming catalyst-filled first chamber 7, reforming catalyst-filled second chamber 8, reforming catalyst-filled third chamber 9, reforming catalyst-filled fourth chamber 10, reforming catalyst-filled fifth chamber 11, reforming catalyst-filled sixth chamber 12, reforming catalyst-filled seventh chamber 13, and reforming catalyst-filled eighth chamber 14. Under the action of the reforming catalyst, hydrogen-rich gas is generated and flows out through hydrogen-rich gas outlet 5.

[0038] Fifth, eight reforming catalyst chambers are equipped with eight thermocouples installed in thermocouple sheaths 30 to monitor the temperature changes of the eight chambers at all times, so as to ensure reaction efficiency and gas production.

[0039] VI. In the first stage of methanol combustion, methanol is ignited in the flaming combustion chamber 27 via the pure methanol coil 21. The heat generated passes through the flameless combustion catalyst isolation tube 20 and enters the flameless combustion catalyst-filled chamber 18. During this process, under the action of the catalyst, methanol decomposes and generates a large amount of heat, which is supplied to the heat required for process four through the inner heat-conducting profile 15 and the outer heat-conducting profile 16. In the second stage, methanol uses the heat generated in the first stage of methanol combustion via the pure methanol coil 21 to vaporize pure methanol, which directly enters the flameless combustion catalyst-filled chamber 18. Under the action of the catalyst, the reaction provides heat, which is continuously supplied to the heat required for the reaction in process four through the inner heat-conducting profile 15 and the outer heat-conducting profile 16.

[0040] 7. The gas coming out of the flame combustion chamber 27 and the flameless combustion catalyst-filled chamber 18 is discharged through the inner heat-conducting profile 15, the outer heat-conducting profile 16, the combustion exhaust gas passage 29, and the exhaust gas outlet 1.

[0041] 8. The catalyst chambers are equipped with a lower reforming chamber channel 23 and an upper reforming chamber channel 26 to ensure that the methanol-water path is the longest and the reaction is the most complete.

[0042] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A methanol power generation reforming unit, comprising a casing (19), characterized in that: An inner ring heat-conducting profile (15) is provided in the center of the outer shell (19), and an outer ring heat-conducting profile (16) is attached to the inner side wall of the outer shell (19). Multiple reforming catalyst-filled chambers are provided between the inner ring heat-conducting profile (15) and the outer ring heat-conducting profile (16). The top of the inner ring heat-conducting profile (15) is a flameless combustion catalyst-filled chamber (18), and a methanol-water coil (17) is attached to the inner wall of the flameless combustion catalyst-filled chamber (18). A flameless combustion catalyst is sleeved inside the methanol-water coil (17). The catalyst isolation tube (20) is fitted with a pure methanol coil (21) on the bottom surface of the flameless combustion catalyst isolation tube (20). The bottom of the outer shell (19) is provided with a tail gas outlet (1) and an air inlet (2). The bottom of the inner shell (19) is provided with a flame combustion chamber (27), a combustion air passage (28), and a combustion tail gas passage (29). The bottom of the outer shell (19) away from the tail gas outlet (1) is provided with a fuel cell tail gas inlet (3), a methanol-water inlet (4), a hydrogen-rich gas outlet (5), and a pure methanol inlet (6).

2. The methanol power generation reforming unit according to claim 1, characterized in that: The plurality of the reforming catalyst-filled chambers include a first reforming catalyst-filled chamber (7), a second reforming catalyst-filled chamber (8), a third reforming catalyst-filled chamber (9), a fourth reforming catalyst-filled chamber (10), a fifth reforming catalyst-filled chamber (11), a sixth reforming catalyst-filled chamber (12), a seventh reforming catalyst-filled chamber (13), and an eighth reforming catalyst-filled chamber (14), and the first reforming catalyst-filled chamber (7), the second reforming catalyst-filled chamber (8), the third reforming catalyst-filled chamber (9), the fourth reforming catalyst-filled chamber (10), the fifth reforming catalyst-filled chamber (11), the sixth reforming catalyst-filled chamber (12), the seventh reforming catalyst-filled chamber (13), and the eighth reforming catalyst-filled chamber (14) are connected in sequence.

3. The methanol power generation reforming unit according to claim 1, characterized in that: A combustion air passage (28) is connected between the air inlet (2) and the flame combustion chamber (27).

4. A methanol power generation reforming unit according to claim 2, characterized in that: The tail gas inlet (3) of the fuel cell stack is connected to the flame combustion chamber (27), the methanol-water inlet (4) is connected to the methanol-water coil (17), the outlet of the methanol-water coil (17) is connected to the first chamber (7) filled with reforming catalyst, and the outlet of the eighth chamber (14) filled with reforming catalyst is connected to the hydrogen-rich gas outlet (5).

5. A methanol power generation reforming unit according to claim 1, characterized in that: The pure methanol inlet (6) is connected to the pure methanol coil (21), and the tail of the pure methanol coil (21) is connected to a nozzle (22). The nozzle (22) is located inside the flame combustion chamber (27). An ignition needle (24) is installed inside the flame combustion chamber (27), and an ignition needle fixing sleeve (25) is fixed to the outside of the ignition needle (24).

6. A methanol power generation reforming unit according to claim 1, characterized in that: Each of the multiple filled reforming catalyst chambers has a thermocouple sleeve (30) installed at its bottom, and each thermocouple sleeve (30) has a thermocouple installed inside.

7. A methanol power generation reforming unit according to claim 1, characterized in that: The flame combustion chamber (27), the flameless combustion catalyst-filled chamber (18), the combustion exhaust gas passage (29), and the exhaust gas outlet (1) are connected. A methanol power generation reforming unit according to claim 4, characterized in that: The bottom and top of the first chamber (7), second chamber (8), third chamber (9), fourth chamber (10), fifth chamber (11), sixth chamber (12), seventh chamber (13) and eighth chamber (14) filled with reforming catalyst are respectively provided with a lower reforming chamber channel (23) and an upper reforming chamber channel (26).

Images