A device for producing and storing hydrogen based on liquid metal assisted aluminum

Abstract

The utility model discloses a kind of based on liquid metal auxiliary aluminum hydrogen production, hydrogen storage device, design utilizes hydrogen gas equipment technical field prepared by metal material, the device is by device shell, gas preparation unit, heating layer, drying tank, circulating water tank, circulating water pump, circulating water valve, hydrogen storage alloy tank, water inlet tank, water delivery pump, water delivery valve, switch valve, pressure relief valve, thermometer and pressure gauge etc. The shell of the device is used to protect and support gas preparation unit and heating layer, by water delivery pipe connection water inlet tank, gas preparation unit, heating layer and circulating water tank, by gas guide pipe connection gas preparation unit, drying tank and hydrogen storage alloy tank, by water valve control water flow into the flow rate of gas preparation unit and heating layer, by pressure relief valve and switch valve ensure the safety of drying tank, by switch valve control gas collection, gas is collected after drying into hydrogen storage alloy tank, reach the purpose of collecting hydrogen. The utility model device sets hydrogen production hydrogen storage integration, can continuously make aluminum-water reaction hydrogen production, can recycle rare metal not participating in aluminum-water reaction, high safety degree, wide application range and can provide stable hydrogen for use.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production equipment technology, and in particular to a device for hydrogen production and storage based on liquid metal-assisted aluminum. Background Technology

[0002] Commonly used hydrogen production technologies in my country include water-gas method, water electrolysis method, biological hydrogen production method, high-temperature decomposition method, fossil fuel hydrogen production, and biomass hydrogen production. Each method has its advantages and disadvantages, depending on the scale, efficiency, and cost considerations of hydrogen production. Traditional hydrogen storage technologies include compressed hydrogen storage and liquefied hydrogen storage, but both suffer from problems such as low gravimetric hydrogen storage density and significant safety hazards.

[0003] Addressing the challenges of traditional hydrogen production technologies, the purpose of this invention is to provide a device and method for hydrogen production and storage based on liquid metal-assisted aluminum. The method employs a novel liquid metal-activated aluminum approach for hydrogen production, and the principle of hydrogen production is as follows:

[0004] 2Al + 6H₂O = 2Al(OH)₃ + 3H₂↑

[0005] Aluminum resources are widely distributed globally and are extremely abundant. Utilizing aluminum to produce hydrogen provides solid support for the sustainable development of the hydrogen energy industry, and its development prospects are very broad. Under standard conditions, 1g of aluminum can theoretically produce 1244.4mL of hydrogen gas, meeting the requirements for use as a hydrogen storage material.

[0006] Existing hydrogen production facilities have several drawbacks: some facilities produce hydrogen slowly or employ high-cost methods, raising the economic barrier to hydrogen production; some use powdered raw materials, resulting in low safety levels; and some cannot recover hydrolysis products, leading to the waste of rare metals. Therefore, it is essential to develop an integrated hydrogen production and storage device using liquid metal-assisted aluminum hydrolysis to achieve efficient hydrogen supply, simple reaction conditions, sustainable hydrogen production, liquid metal recycling, controllable hydrogen production rate, high safety, and wide applicability. Summary of the Invention

[0007] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title, and such simplifications or omissions should not be used to limit the scope of this utility model.

[0008] This utility model discloses a device for hydrogen production and storage based on liquid metal-assisted aluminum, comprising a device shell, a gas preparation unit, a heating layer, a drying tank, a circulating water tank, a circulating water pump, a circulating water valve, a hydrogen storage alloy tank, a water inlet tank, a water delivery pump, a water delivery valve, a switching valve, a pressure relief valve, a thermometer, and a pressure gauge. Pressure gauge 1 and thermometer 2 are located on the gas preparation unit; thermometer 1 is located on the heating layer, and pressure gauge 2 is located on the hydrogen storage alloy tank. The device shell protects and supports the gas preparation unit and the heating layer. The water inlet tank, water delivery pump, and water delivery valve are connected to the gas preparation unit via water pipes, and the heating layer is also connected to the circulating water tank via water pipes. The device is connected to the gas preparation unit, the drying tank, and the hydrogen storage alloy tank via a gas guide pipe. The water valve controls the water flow into the gas preparation unit and the heating layer. The pressure relief valve and the switching valve ensure the safety of gas collection, and the switching valve controls gas collection. After drying, the gas enters the hydrogen storage alloy tank, achieving the purpose of hydrogen collection. The device can continuously produce hydrogen through the aluminum-water reaction, can recycle rare metals that do not participate in the aluminum-water reaction, has a high degree of safety, a wide range of applications, and can provide a stable supply of hydrogen for use.

[0009] The preferred gas preparation unit includes a control lever, a material cover, a sealing felt ring, a feed pipe, a unit reaction shell, an upper valve plate, a lower valve plate, and a unit reaction vessel. The upper valve plate is connected to the control lever and fixed by welding. The feed pipes are arranged in an array with the control lever as the center point. The material cover and the sealing felt ring are located at the feed pipe inlet to ensure the feed pipe can be sealed. The lower valve plate is interference-fitted to the unit reaction vessel for easy removal of the unit reaction vessel.

[0010] The preferred heating layer includes a heating sleeve, a heating tube, a water inlet, and a water outlet. The heating tube is located inside the heating sleeve and is filled with water. The water temperature can be increased through the heating tube, and heat can be conducted to the gas preparation unit to increase the reaction temperature. The whole structure is located above the unit reaction container and does not obstruct the unit reaction container from being easily removed.

[0011] Preferably, the circulating water tank and the circulating water pump are connected by a water supply pipe to deliver and extract water to the heating layer in order to control the water temperature of the heating layer and further control the temperature within the gas preparation unit.

[0012] Preferably, the hydrogen storage alloy tank and the drying tank are connected by a gas guide pipe, and a pressure relief valve and a switching valve are located on the gas guide pipe at the inlet of the drying tank; the gas guide pipe connects the gas preparation unit and the drying tank and is used to control the gas entering the drying tank and the hydrogen storage alloy tank.

[0013] Preferably, the upper valve plate is equipped with four stop pins. Both the upper and lower valve plates have equally sized flow ports and material conveying holes arranged in an array around the control lever as the center point, facilitating the entry and exit of materials, water, and gas. The lower valve plate has a limit groove. When the stop pin of the upper valve plate stops rotating along the limit groove, and the flow ports and material conveying holes of the upper and lower valve plates are completely blocked, this is the end point of the limit groove. The outer diameter of the upper valve plate is slightly smaller than that of the lower valve plate, which is to facilitate the rotation of the control lever to block the orifices and to make the unit reaction vessel easy to remove and clean.

[0014] Preferably, the aluminum material conveyed to the unit reaction vessel by the conveying pipe is in the form of blocks, sheets, foils, or granules.

[0015] In summary, this device can achieve efficient hydrogen energy supply, simple reaction conditions, sustainable hydrogen production, liquid metal recycling, controllable hydrogen rate, and high safety. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, serving to explain the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0018] Figure 2 This is an exploded schematic diagram of the heating layer in the device of this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the gas preparation unit in the device of this utility model;

[0020] Figure 4 This is an explosion diagram of the gas preparation unit in the device of this utility model;

[0021] Figure 5 This is a top view of the upper and lower valve plates in the device of this utility model;

[0022] Figure 6 This is a schematic diagram of the upper and lower valve plate structures in the device of this utility model;

[0023] The attached diagrams include the following reference numerals: 1. Water inlet tank; 2. Water pump; 3. Water valve; 4. Heating layer; 5. Pressure gauge 1; 6. Gas preparation unit; 7. Pressure relief valve; 8. Switch valve; 9. Drying tank; 10. Pressure gauge 2; 11. Hydrogen storage alloy tank; 12. Circulating water tank; 13. Circulating water pump; 14. Circulating water valve; 15. Thermometer 1; 16. Thermometer 2; 17. Device outer shell; 41. Heating sleeve; 42. Heating tube; 43. Water inlet; 44. Water outlet; 61. Control lever; 62. Material cover; 63. Sealing felt ring; 64. Feed pipe; 65. Unit reaction shell; 66. Upper valve plate; 67. Lower valve plate; 68. Unit reaction vessel; 661. Stop pin; 662. Flow port; 663. Feed hole; 671. Limiting groove. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several adjustments and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0025] A device for producing and storing hydrogen based on liquid metal-assisted aluminum is characterized by: a water inlet tank (1), a water pump (2), a water valve (3), a heating layer (4), a pressure gauge 1 (5), a gas preparation unit (6), a pressure relief valve (7), a switch valve (8), a drying tank (9), a pressure gauge 2 (10), a hydrogen storage alloy tank (11), a circulating water tank (12), a circulating water pump (13), a circulating water valve (14), a thermometer 1 (15), a thermometer 2 (16), and a device shell (17). The device will fix the heating layer (4) with the device shell (17). First, liquid metal and aluminum are put into the gas preparation unit (6) and water is injected to produce hydrogen. Then, the hydrogen enters the drying tank (9) through the switch valve (8). After the gas is dried, pure hydrogen is obtained and collected in the hydrogen storage alloy tank (11) to achieve the purpose of collection.

[0026] The aforementioned gas preparation unit (6) includes a control lever (61); a material cover (62); a sealing felt ring (63); a feed pipe (64); a unit reaction shell (65); an upper valve plate (66); a lower valve plate (67); and a unit reaction container (68). The specific implementation scheme for hydrogen preparation is as follows: First, liquid metal is placed into the unit reaction container (68). The unit reaction container is then combined with the lower valve plate (67) to make the entire gas preparation unit a single unit. The material cover (62) is opened, and aluminum material is placed inside. The material falls into the unit reaction container through the feed pipe (64). The material cover is then closed. The sealing felt ring (63) is used to ensure the airtightness of the device. Finally, water is injected into the container, and the aluminum begins to undergo a hydrolysis reaction. Liquid metal recovery implementation plan: Open the pressure relief valve (7). At this time, the pressure inside the container drops. When the pressure reaches a safe level, rotate the control lever (61) to drive the upper valve plate (66). When the stop pin (661) of the upper valve plate stops, the holes of the upper and lower valve plates are completely blocked. At this time, the unit reaction container (68) can be removed, the aluminum hydrolysis by-products can be easily separated, and the liquid metal can be easily recovered.

[0027] The aforementioned heating layer (4) includes a heating sleeve (41); a heating tube (42); a water inlet (43); and a water outlet (44). The specific implementation scheme for controlling the reaction temperature is as follows: water is filled into the heating sleeve (41) through the water inlet (43), and the water temperature is increased through the heating tube (42). This heat transfer raises the water temperature in the gas preparation unit (6), thereby increasing the reaction rate. When it is necessary to control the hydrolysis reaction rate, the heating tube is closed, and a circulating water pump (13) and a circulating water valve (14) are used to pump water into the heating sleeve to lower the reaction water temperature.

[0028] Matters not covered in this utility model are common knowledge. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for hydrogen production and storage based on liquid metal-assisted aluminum, characterized in that: Water inlet tank (1), water pump (2), water valve (3), heating layer (4), pressure gauge 1 (5), gas preparation unit (6), pressure relief valve (7), switch valve (8), drying tank (9), pressure gauge 2 (10), hydrogen storage alloy tank (11), circulating water tank (12), circulating water pump (13), circulating water valve (14), thermometer 1 (15), thermometer 2 (16), device shell (17). The device will fix the heating layer (4) by the device shell (17). First, liquid metal and aluminum are put into the gas preparation unit (6) and water is injected to produce hydrogen gas. Then, the hydrogen gas enters the drying tank (9) through the switch valve (8). After the gas is dried, pure hydrogen gas is collected in the hydrogen storage alloy tank (11) to achieve the purpose of collection.

2. The device for hydrogen production and storage based on liquid metal-assisted aluminum according to claim 1, characterized in that... The gas preparation unit (6) includes a control lever (61); a material cover (62); a sealing felt ring (63); a feed pipe (64); a unit reaction shell (65); an upper valve plate (66); a lower valve plate (67); and a unit reaction vessel (68).

3. The device for hydrogen production and storage based on liquid metal-assisted aluminum according to claim 1, characterized in that... The heating layer (4) includes a heating sleeve (41); a heating tube (42); a water inlet (43); and a water outlet (44). The heating layer is used to control the temperature of the gas preparation unit (6).

4. The device for hydrogen production and storage based on liquid metal-assisted aluminum as described in claim 1, characterized in that... The water inlet tank (1), water pump (2) and water valve (3) are connected to the gas preparation unit (6) by water pipes. The circulating water tank (12) and circulating water pump (13) are connected by water pipes. The hydrogen storage alloy tank (11) and drying tank (9) are connected by gas guide pipes. The pressure relief valve (7) and switch valve (8) are located on the gas guide pipe at the inlet of the drying tank.

5. The device for hydrogen production and storage based on liquid metal-assisted aluminum as described in claim 1, characterized in that... The pressure gauge 1 (5) and the temperature gauge 2 (16) are located in the gas preparation unit (6), the temperature gauge 1 (15) is located on the heating layer (4), and the pressure gauge 2 (10) is located on the hydrogen storage alloy tank (11).

6. The device for hydrogen production and storage based on liquid metal-assisted aluminum according to claim 2, characterized in that... The upper valve plate (66) is equipped with four stop pins (661) and flow ports (662) and material conveying holes (663) arranged in an array with the center point as the center point. The lower valve plate (67) has a limit groove (671) and has the same flow ports and material conveying holes as the upper valve plate.

7. The device for hydrogen production and storage based on liquid metal-assisted aluminum according to claim 2, characterized in that... The upper valve plate (66) is connected to the control lever (61), and the lower valve plate (67) is connected to the unit reaction vessel (68) by interference fit.

8. The device for hydrogen production and storage based on liquid metal-assisted aluminum according to claim 2, characterized in that... The control lever (61) can rotate the upper valve plate (66). When the stop pin (661) of the upper valve plate rotates to the end of the limiting groove (671), the flow port (662) and the feed hole (663) are completely blocked by the lower valve plate (67), and the unit reaction vessel (68) can be removed.

9. The device for hydrogen production and storage based on liquid metal-assisted aluminum according to claim 2, characterized in that... The aluminum material conveyed by the conveying pipe (64) can be in the form of blocks, sheets, foils, or granules.

10. The device for hydrogen production and storage based on liquid metal-assisted aluminum according to claim 2, characterized in that... The unit reaction vessel (68) is used to hold and recover liquid metal and serves as the main reaction site.

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