Intensive methanol-to-hydrogen skid-mounted equipment

Abstract

The utility model discloses intensive methanol-to-hydrogen skid-mounted equipment, which relates to the technical field of hydrogen production equipment and is technically characterized by comprising a heightened container, a fuel supply system, a support frame and a drying machine are mounted in the heightened container, and the drying machine is mounted at the top of the drying machine. A signal monitoring module and a gas control module are further installed in the heightened container. According to the equipment, methanol water is adopted as a raw material, and the methanol water is efficiently converted into high-purity hydrogen through the steps of gasification cracking, recombination reaction, methanation reaction and the like. Meanwhile, the methanol hydrogen production system can automatically control the rotating speed of the fuel pump according to the hydrogen production requirement, the energy utilization rate is further improved, the equipment adopts the drying machine to perform molecular screening adsorption on the hydrogen, moisture in the hydrogen is effectively removed, and the purity of the hydrogen is improved. Meanwhile, the equipment is further provided with a plurality of gas outlet pipes, the output quantity and direction of hydrogen can be flexibly adjusted according to needs, and the requirements of different application scenes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen production equipment, in particular to a intensive methanol hydrogen production skid-mounted equipment. Background Art

[0002] The methanol reforming hydrogen production device produces hydrogen, and the raw material of the methanol reforming hydrogen production device is an alcohol-based raw material mixed with 62% methanol and 38% water in a mass ratio.

[0003] The reaction principle of methanol to hydrogen is as follows:

[0004] CH3OH(g)→CO+2H2

[0005] CO+H2O(g)→CO2+H2

[0006] Overall reaction formula: CH3OH(g)+H2O(g)→CO2+3H2

[0007] 1 mole of methanol requires the same mole of water molecules, with a mass ratio of (62)% to 38% for the positioning orbital.

[0008] Methanol hydrogen production is a technical route for hydrogen production. China is the world's largest methanol producer, with 60% of the world's methanol production capacity. Methanol is abundant in source, low in cost, and easy to store and transport as a liquid at room temperature and pressure. Compared with other hydrogen production methods such as industrial hydrogen production, methanol hydrogen production has lower energy consumption and cost. There are two ways to use methanol to produce hydrogen in industry: methanol decomposition, methanol partial oxidation and methanol steam reforming. In order to reduce energy consumption and reduce costs in chemical production, it replaces the "electrolysis of water to produce hydrogen" process known as the "electric tiger". The advanced methanol steam reforming-pressure swing adsorption technology is used to produce pure hydrogen and a mixed gas rich in CO2. After further post-processing, hydrogen and carbon dioxide can be obtained at the same time. Methanol steam reforming hydrogen production is more widely used due to its high hydrogen yield, reasonable energy utilization, simple process control, and convenience for industrial operation.

[0009] With the continuous development and utilization of hydrogen energy, the storage and transportation of hydrogen has become a key link restricting the development of the hydrogen energy industry. In order to reduce the transportation cost of hydrogen, some hydrogen refueling stations have built methanol hydrogen production equipment in the station to produce hydrogen on site.

[0010] Traditional methanol hydrogen production equipment is usually relatively scattered, which results in a large amount of space being occupied during construction, increasing the land cost, and requiring a separate methanol storage tank to be installed for the equipment in order to store the methanol raw materials transported by the long tube trailer, which further increases the space occupied by the entire equipment. Moreover, it takes a lot of time to discharge the methanol raw materials in the long tube trailer into the methanol storage tank. Therefore, an intensive methanol hydrogen production skid-mounted equipment is proposed to solve the above-mentioned problems. Utility Model Content

[0011] In order to overcome the shortcomings of the prior art, the utility model provides a intensive methanol hydrogen production skid-mounted equipment, including a heightened container, in which a fuel supply system, a support frame, and a dryer are installed, and a signal monitoring module and a gas control module are also installed in the heightened container;

[0012] Among them, four methanol hydrogen production systems are installed inside the support frame, and the four methanol hydrogen production systems are distributed on both sides of the support frame in pairs;

[0013] A gas buffer tank is installed on the top of the dryer, the fuel supply system is connected to multiple methanol hydrogen production systems in the support frame, and the multiple methanol hydrogen production systems are connected to the gas buffer tank, and the gas buffer tank is connected to the dryer.

[0014] As a preferred technical solution of the utility model, the fuel supply system includes a methanol-water fuel PP ton barrel, a methanol-water buffer tank and a feed pump, and the methanol-water fuel PP ton barrel and the methanol-water buffer tank, the methanol-water buffer tank and the feed pump are interconnected, and a feed valve is arranged between the methanol-water buffer tank and the feed pump, and a PI pressure gauge and a reflux three-way valve are also connected to the end of the fuel pump away from the methanol-water buffer tank.

[0015] As an optimal technical solution of the utility model, the methanol hydrogen production system includes an INFPM recombiner module, which includes three FPM recombiners, a PCB controller, and a buffer tank. The FPM recombiners and PCB controllers, and the PCB controller and buffer tanks are interconnected in pairs.

[0016] As a preferred technical solution of the utility model, the gas buffer tank includes a main tank body, a sealing block is installed on the main tank body, a high-pressure nozzle is rotatably connected to the sealing block, and a shaft seal is provided at the rotating connection portion between the sealing block and the high-pressure nozzle, one end of the high-pressure nozzle is connected to the methanol hydrogen production system, and the other end of the high-pressure nozzle is connected to the interior of the main tank body, and an angle adjustment component is installed on the high-pressure nozzle.

[0017] As a preferred technical solution of the utility model, the angle adjustment assembly includes a connecting ring, on which are rotatably connected a plurality of electric push rods distributed in a circle, and the ends of the plurality of electric push rods away from the connecting ring are rotatably connected to a support plate, and the plurality of support plates are fixed to the surface of the main tank body.

[0018] As a preferred technical solution of the utility model, a heating plate is installed inside the main tank body, a baffle and a plurality of high-temperature drying heating wires are installed inside the main tank body, two groups of inner sliding components are installed inside the main tank body from left to right, a windshield net is installed at the center position of the two groups of inner sliding components, and the mesh density of the left windshield net is higher than that of the right windshield net.

[0019] As a preferred technical solution of the utility model, a plurality of first one-way valves and a plurality of second one-way valves are installed in the baffle, and a plurality of pressure sensors are installed on a side of the baffle close to the heating plate.

[0020] As a preferred technical solution of the utility model, the main tank body is connected with a plurality of air outlet pipes.

[0021] As a preferred technical solution of the utility model, the inner sliding component includes a positioning track, a slider is slidably connected to the positioning track, a connecting belt is connected to the slider, a positioning block is connected to the end of the connecting belt away from the slider, the positioning block is connected to the adjacent windshield net, the slider is made of conductive material, and an electric contact is installed on the positioning track.

[0022] As a preferred technical solution of the utility model, a first spring is installed at the left end of the positioning track, the first spring is connected to the slider, and an electromagnet is installed at the right end of the positioning track.

[0023] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0024] 1. The equipment uses a signal monitoring module and a computer control system to achieve real-time monitoring and automatic adjustment of key parameters such as flow, temperature, pressure, pump speed and gas water content. This not only ensures the stability and safety of the hydrogen production process, but also improves hydrogen production efficiency and reduces energy consumption.

[0025] 2. The equipment uses methanol water as raw material, and efficiently converts methanol water into high-purity hydrogen through gasification cracking, recombination reaction and methanation reaction. At the same time, the methanol hydrogen production system can automatically control the speed of the fuel pump according to the hydrogen production demand, further improving the energy utilization rate.

[0026] 3. The equipment is equipped with a gas buffer tank with a large capacity, and through the design of the heating plate and the high-pressure nozzle, the equipment can effectively heat and evenly distribute the incoming hydrogen to ensure the drying and purification of the hydrogen. Secondly, the circular motion of the electric push rod and the windshield mesh not only enhance the uniformity of gas distribution, but also realize the intelligent adjustment of the equipment function through the interaction between the slider and the electric contact. In particular, the combination of the pressure sensor and the high-temperature drying heating wire can automatically adjust the number of heating wires according to the hydrogen pressure to ensure the drying effect and purity of the hydrogen. Finally, the design of multiple outlet pipes makes the discharge of hydrogen more flexible and meets the needs of different application scenarios.

[0027] 4. The equipment uses a dryer to perform molecular screening adsorption on hydrogen, effectively removing moisture from the hydrogen and improving the purity of the hydrogen. At the same time, the equipment is also equipped with multiple outlet pipes, which can flexibly adjust the output and direction of hydrogen as needed to meet the needs of different application scenarios.

[0028] 5. The equipment adopts modular design, integrating core components such as methanol hydrogen production system, dryer and gas buffer tank on a skid-mounted platform for easy transportation and installation. This design not only reduces the equipment footprint and cost, but also improves the maintainability and scalability of the equipment.

[0029] In summary, this intensive methanol hydrogen production skid-mounted equipment provides an efficient, stable and convenient solution for the field of methanol water reforming hydrogen production through its advantages such as intelligent monitoring and regulation, efficient and energy-saving methanol hydrogen production system, innovative gas buffer and heating system, flexible hydrogen drying and output system, modular design and convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall top view structure of the utility model;

[0031] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the utility model;

[0032] Figure 3 It is a side view structural schematic diagram of the utility model;

[0033] Figure 4 It is a schematic diagram of the front cross-sectional structure of the gas buffer tank in the utility model;

[0034] Figure 5 It is a schematic diagram of the side cross-sectional structure of the gas buffer tank in the utility model;

[0035] Figure 6 For this utility model Figure 4 The enlarged view of point A in the middle;

[0036] Figure 7For this utility model Figure 4 Enlarged view of point B in the middle.

[0037] Among them: 1. Heightened container; 2. Fuel supply system; 3. Dryer; 4. Support frame; 5. Methanol hydrogen production system; 6. Inner sliding assembly; 61. Positioning block; 62. Positioning track; 63. Connecting belt; 64. Sliding block; 65. First spring; 66. Electric contact piece; 67. Electromagnet; 7. Gas buffer tank; 71. Main tank body; 72. High-pressure nozzle; 73. Sealing block; 74. Heating plate; 75. Baffle; 76. High-temperature drying heating wire; 77. First one-way valve; 78. Second one-way valve; 79. Pressure sensor; 8. Signal monitoring module; 9. Gas control module; 10. Wind shield; 11. Support plate; 12. Electric push rod; 13. Connecting ring; 14. Exhaust pipe. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0039] Example:

[0040] like Figure 1 - Figure 7 As shown, this embodiment proposes a intensive methanol hydrogen production skid-mounted equipment, which is characterized by: comprising a heightened container 1, in which a fuel supply system 2, a support frame 4, and a dryer 3 are installed, and a signal monitoring module 8 and a gas control module 9 are also installed in the heightened container 1;

[0041] Among them, four methanol hydrogen production systems 5 are installed inside the support frame 4, and the four methanol hydrogen production systems 5 are distributed on both sides of the support frame 4 in pairs;

[0042] A gas buffer tank 7 is installed on the top of the dryer 3 , the fuel supply system 2 is connected to multiple methanol hydrogen production systems 5 in the support frame 4 , and the multiple methanol hydrogen production systems 5 are connected to the gas buffer tank 7 , and the gas buffer tank 7 is connected to the dryer 3 .

[0043] In this embodiment, the fuel supply system 2 includes a methanol-water fuel PP ton barrel, a methanol-water buffer tank and a feed pump, and the methanol-water fuel PP ton barrel and the methanol-water buffer tank, the methanol-water buffer tank and the feed pump are interconnected, and a feed valve is arranged between the methanol-water buffer tank and the feed pump, and the end of the fuel pump away from the methanol-water buffer tank is also connected to a PI pressure gauge and a reflux three-way valve.

[0044] In this embodiment, the methanol hydrogen production system 5 includes a 3IN1FPM recombiner module, which includes three FPM recombiners, a PCB controller, and a buffer tank. The FPM recombiners and the PCB controller, and the PCB controller and the buffer tank are interconnected in pairs.

[0045] In this embodiment, the gas buffer tank 7 includes a main tank body 71, on which a sealing block 73 is installed, and a high-pressure nozzle 72 is rotatably connected to the sealing block 73, and a shaft seal is provided at the rotating connection portion between the sealing block 73 and the high-pressure nozzle 72, one end of the high-pressure nozzle 72 is connected to the methanol hydrogen production system 5, and the other end of the high-pressure nozzle 72 is connected to the interior of the main tank body 71, and an angle adjustment component is installed on the high-pressure nozzle 72.

[0046] In this embodiment, the angle adjustment assembly includes a connecting ring 13, on which a plurality of electric push rods 12 are rotatably connected in a circular distribution. The ends of the plurality of electric push rods 12 away from the connecting ring 13 are rotatably connected to a support plate 11, and the plurality of support plates 11 are fixed to the surface of the main tank body 71.

[0047] In this embodiment, a heating plate 74 is installed inside the main tank body 71, a baffle 75 and a plurality of high-temperature drying heating wires 76 are installed inside the main tank body 71, two groups of inner sliding components 6 are installed inside the main tank body 71 from left to right, a windshield net 10 is installed at the center position of the two groups of inner sliding components 6, and the mesh density of the left windshield net 10 is higher than that of the right windshield net 10.

[0048] In this embodiment, a plurality of first one-way valves 77 and a plurality of second one-way valves 78 are installed in the baffle 75 , and a plurality of pressure sensors 79 are installed on a side of the baffle 75 close to the heating plate 74 .

[0049] In this embodiment, a plurality of air outlet pipes 14 are connected to the main tank body 71 .

[0050] In this embodiment, the inner sliding component 6 includes a positioning rail 62, a slider 64 is slidably connected to the positioning rail 62, a connecting belt 63 is connected to the slider 64, a positioning block 61 is connected to the end of the connecting belt 63 away from the slider 64, the positioning block 61 is connected to the adjacent windshield net 10, the slider 64 is made of conductive material, and an electric contact 66 is installed on the positioning rail 62.

[0051] In this embodiment, a first spring 65 is installed at the left end of the positioning rail 62 , and the first spring 65 is connected to the slider 64 . An electromagnet 67 is installed at the right end of the positioning rail 62 .

[0052] Furthermore, the electric contact piece 66 is divided into three sections. When the slider 64 contacts the electric contact piece 66 of the first section, the electric push rod 12 is started to move intermittently to prevent the windshield 10 from being subjected to excessive pressure. When the second section of the electric contact piece 66 contacts the slider 64, the first one-way valve 77 and the second one-way valve 78 are opened to increase the internal space of the main tank body 71. When the electric contact piece 66 of the third section contacts the slider 64, all the air outlet pipes 14 are opened. In the initial state, only two air outlet pipes are opened by default.

[0053] The working principle of the utility model is as follows: the device generates hydrogen by reforming methanol water.

[0054] First, after the methanol water is prepared, it is added to the fuel supply system 2.

[0055] Then, after the fuel supply system 2 is started, the above-mentioned methanol water buffer tank is provided inside the fuel supply system 2, and a liquid level meter is provided on the buffer tank;.

[0056] When the methanol water in the buffer tank is lower than 20%, the signal monitoring module 8 receives a signal, the feed pump starts to work, and the methanol water is pumped from the fuel barrel in the fuel supply system 2 to the support frame 4, and finally transferred to multiple methanol hydrogen production systems 5.

[0057] At the same time, the methanol hydrogen production system 5 is started, and the fuel delivery pump Pump in the methanol hydrogen production system 5 delivers methanol water at a speed of 15L / min.

[0058] When methanol water is transported to the Fuel Processing Moudle recombiner, the methanol water solution CH3OH·H2O is gasified and cracked by the recombiner Fuel Processing Moudle at 400 degrees Celsius to generate cracked gas. The cracked gas is recombined and filtered and purified by metal palladium. The purified hydrogen-rich gas is pressed into the methanator at a reaction pressure of 60psig for methanation reaction. The carbon monoxide CO is reduced by hydrogen H2 to convert it into hydrogen H2 and water H2O with a hydrogen purity of 99.97%. The methanol hydrogen production system 5 will automatically control the speed of the fuel pump and adjust the fuel delivery amount according to the hydrogen production demand.

[0059] The purified hydrogen enters the gas buffer tank 7 with a capacity of 4 gallons. The gas control module controls the total output gas flow of the 12 electric push rods at 900slpm to ensure a stable hydrogen supply. The buffer tank pressure is maintained at about 14psi at the outlet pipe.

[0060] The hydrogen is then transported to the above-mentioned dryer 3 for adsorption and dehydration, and the dryer 3 is used to perform molecular screening adsorption on the pure hydrogen gas, so that the final hydrogen production purity reaches more than 99.99% hydrogen.

[0061] Finally, it enters the gas buffer tank 7 with a capacity of 92.46 gallons and supplies hydrogen stably to the outside.

[0062] The signal monitoring module 8 is equipped with a computer control system to monitor the flow rate, temperature, pressure, pump speed, gas water content and other values ​​during the whole process, and automatically control the start and stop of the fuel replenishment pump, the flow rate of the gas control module 9 and the gas inlet and outlet direction through CAN communication.

[0063] And under the operation of the above-mentioned system principle, when hydrogen gas enters the main tank body 71 of the gas buffer tank 7 through the methanol hydrogen production system 5 or the dryer 3, the heating plate 74 is started to heat the inside of the main tank body 71, and it is sprayed out through the high-pressure nozzle 72 on the sealing block 73. First, the hydrogen gas is sprayed from left to right on the two windshields 10 and finally on multiple pressure sensors 79. In this process, the two electric push rods 12 are extended and retracted in turn according to the circular motion. When the support plate 11 is stationary and the electric push rod 12 is extended and retracted, the high-pressure nozzle 72 will be driven by the connecting ring 13 to spray up and down. When the high-pressure nozzle 72 is tilted, its impact force on the windshield 10 is different. The larger the tilt angle, the smaller the horizontal impact force to the right on the windshield 10. When the windshield 10 is impacted, it will pass The positioning block 61 and the connecting belt 63 drive the slider 64 to move rightward in the positioning track 62, and contact the electric contact 66 to realize different functions. The specific functions are explained in the functional explanation of the electric contact 66. The specific connection method is the existing technology, so it is not explained in detail. The first spring 65 can assist the slider 64 to reset when the high-pressure nozzle 72 is not spraying. After the hydrogen gas flow is sensed by the pressure sensor 79 and reaches the corresponding set pressure value, the corresponding number of high-temperature drying heating wires 76 will be turned on according to the number of pressure sensors 79, and the multiple pressure sensors 79 are designed with a high center and a low outside. This design method can balance the gas pressure values ​​received by the multiple pressure sensors 79 as much as possible; finally, when the dried hydrogen needs to be discharged, the gas can be discharged through multiple outlet pipes 14.

[0064] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0065] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above-mentioned implementation regulations. The above-mentioned implementation regulations and the description are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An intensive methanol-to-hydrogen skid-mounted equipment, characterized by: The invention comprises a heightened container (1), wherein a fuel supply system (2), a support frame (4), and a dryer (3) are installed in the heightened container (1), and a signal monitoring module (8) and a gas control module (9) are also installed in the heightened container (1); Wherein, four methanol hydrogen production systems (5) are installed inside the support frame (4), and the four methanol hydrogen production systems (5) are distributed in pairs on both sides of the support frame (4); A gas buffer tank (7) is installed on the top of the dryer (3); the fuel supply system (2) is connected to a plurality of methanol hydrogen production systems (5) in the support frame (4); the plurality of methanol hydrogen production systems (5) are connected to the gas buffer tank (7); and the gas buffer tank (7) is connected to the dryer (3).

2. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 1, characterized in that: The fuel supply system (2) comprises a methanol-water fuel PP barrel, a methanol-water buffer tank and a feed pump, wherein the methanol-water fuel PP barrel and the methanol-water buffer tank, and the methanol-water buffer tank and the feed pump are interconnected, and a feed valve is provided between the methanol-water buffer tank and the feed pump, and a PI pressure gauge and a reflux three-way valve are also connected to the end of the fuel pump away from the methanol-water buffer tank.

3. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 1, characterized in that: The methanol hydrogen production system (5) comprises a 3IN1FPM recombiner module, wherein the 3IN1FPM recombiner module comprises three FPM recombiners, a PCB controller, and a buffer tank, wherein the FPM recombiners and the PCB controller, and the PCB controller and the buffer tank are interconnected in pairs.

4. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 1, characterized in that: The gas buffer tank (7) comprises a main tank body (71), a sealing block (73) is installed on the main tank body (71), a high-pressure nozzle (72) is rotatably connected to the sealing block (73), and a shaft seal is provided at the rotatably connected portion between the sealing block (73) and the high-pressure nozzle (72), one end of the high-pressure nozzle (72) is connected to the methanol hydrogen production system (5), and the other end of the high-pressure nozzle (72) is connected to the interior of the main tank body (71), and an angle adjustment component is installed on the high-pressure nozzle (72).

5. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 4, characterized in that: The angle adjustment assembly comprises a connecting ring (13), on which a plurality of electric push rods (12) are rotatably connected in a circumferentially distributed manner, and one end of the plurality of electric push rods (12) away from the connecting ring (13) is rotatably connected to a support plate (11), and the plurality of support plates (11) are fixed to the surface of the main tank body (71).

6. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 4, characterized in that: A heating plate (74) is installed inside the main tank body (71), a baffle (75) and a plurality of high-temperature drying heating wires (76) are installed inside the main tank body (71), two groups of inner sliding components (6) are installed inside the main tank body (71) from left to right, a windshield net (10) is installed at the center position of the two groups of inner sliding components (6), and the mesh density of the left windshield net (10) is higher than that of the right windshield net (10).

7. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 6, characterized in that: A plurality of first one-way valves (77) and a plurality of second one-way valves (78) are installed in the baffle plate (75), and a plurality of pressure sensors (79) are installed on a side of the baffle plate (75) close to the heating plate (74).

8. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 4, characterized in that: The main tank body (71) is connected to a plurality of air outlet pipes (14).

9. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 6, characterized in that: The inner sliding component (6) comprises a positioning rail (62), a slider (64) is slidably connected to the positioning rail (62), a connecting belt (63) is connected to the slider (64), a positioning block (61) is connected to one end of the connecting belt (63) away from the slider (64), the positioning block (61) is connected to the adjacent windshield net (10), the slider (64) is made of conductive material, and an electric contact sheet (66) is installed on the positioning rail (62).

10. The intensive methanol-to-hydrogen skid-mounted equipment according to claim 9, characterized in that: A first spring (65) is installed at the left end of the positioning track (62), and the first spring (65) is connected to the slider (64). An electromagnet (67) is installed at the right end of the positioning track (62).

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