Hydrogen storage and transportation system based on magnesium-based solid hydrogen storage technology

Abstract

The utility model discloses a hydrogen storage and transportation system based on magnesium-based solid hydrogen storage technology, which comprises a reaction device, a hydrogen releasing device and a condensing device, the hydrogen generating device and the reaction device are communicated through a hydrogen conveying pipeline I, and a switch valve and a controller are arranged on the hydrogen conveying pipeline I; the controller controls opening and closing of the switch valve according to data of the hydrogen content detector in the reaction device, complete reaction of hydrogen and magnesium-based alloy powder is guaranteed, and the hydrogen storage efficiency is improved. The blowing device is arranged at the bottom of the reaction device, the contact area of hydrogen and magnesium-based alloy powder is increased, and the reaction speed is increased. Heat released by the reaction device can be utilized by the heat collecting device, the purpose of saving energy is achieved, the pressure sensor is arranged on the second hydrogen conveying pipeline and is in signal connection with the water flow control valve, the reaction speed in the hydrogen releasing device is controlled, and breakage caused by too large pressure is prevented. And the condensing device plays a role in removing water.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state hydrogen storage, and in particular to a hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology. Background Art

[0002] Hydrogen energy is considered to be an energy source that can simultaneously meet the requirements of resources, environment and sustainable development due to its advantages of zero emission, high energy, high density and renewable energy. The development of the hydrogen energy industry will help promote the transformation of the energy structure, reduce dependence on traditional fossil energy, promote the use of renewable energy, and promote energy transformation towards a clean and low-carbon direction. At present, the development and utilization of hydrogen energy has received great attention worldwide.

[0003] Existing hydrogen transportation methods include gaseous hydrogen transportation and liquid hydrogen transportation, but compressed hydrogen transportation is prone to explosion due to insufficient strength of storage tank fatigue or explosion due to hydrogen leakage. Although liquid hydrogen transportation is convenient for transportation and storage, the liquefaction process of hydrogen is quite energy-consuming.

[0004] Magnesium-based solid-state hydrogen storage technology achieves safe and high-density storage of hydrogen by reacting hydrogen with magnesium alloys or magnesium compounds, adsorbing or embedding hydrogen into magnesium-based materials. Magnesium-based materials have higher hydrogen storage density and higher safety, which can avoid the safety hazards caused by high-pressure gas storage and transportation. Magnesium-based solid-state hydrogen storage technology is environmentally friendly and has less impact on the environment.

[0005] Therefore, it is necessary to provide a hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology, comprising a hydrogen generating device, a reaction device, a hydrogen releasing device, and a condensing device, characterized in that: a switch valve and a controller are arranged on a hydrogen delivery pipeline, a blowing device is arranged at the bottom of the reaction device, a hydrogen content detector is arranged at the top of the reaction device, and is used to detect the hydrogen content in the reaction device, the hydrogen content detector is connected to the controller through a wireless signal, and the controller is electrically connected to the switch valve;

[0009] The hydrogen release device is fixedly connected to the air inlet of the condensing device through the second hydrogen delivery pipeline, and the air outlet of the condensing device is fixedly connected to the hydrogen collecting device through the second hydrogen delivery pipeline. The hydrogen release device is connected to the water tank through a water injection pipe, and a water flow control valve is arranged on the water injection pipe. A pressure sensor is arranged on the second hydrogen delivery pipeline between the condensing device and the hydrogen collecting device. The pressure sensor is connected to the water flow control valve by wireless signal, and the water flow control valve is used to control the water flow.

[0010] Preferably, the reaction device is connected to the hydrogen generating device through the hydrogen delivery pipeline 1.

[0011] Preferably, the reaction device is connected to a heat collection device via a pipeline, and the heat collection device is connected to a gas recovery device via the pipeline.

[0012] Preferably, the heat collection device has a water pipe in it, cold water flows in through the water inlet, heat is generated by the reaction in the reaction device to heat the cold water, and hot water flows out through the water outlet.

[0013] Preferably, a filter screen is provided inside the hydrogen release device to prevent solid particles from entering the second hydrogen delivery pipeline.

[0014] Preferably, the condensing device is provided with a spiral condensing water pipeline and a water collector at the bottom.

[0015] Compared with the related art, the beneficial effects of the utility model are:

[0016] (1) The bottom of the reaction device of the utility model is provided with a blowing device to make the magnesium-based alloy powder float, thereby increasing the contact area with hydrogen and accelerating the reaction speed.

[0017] (2) The hydrogen collecting device of the utility model is connected to a condensing device in front, which plays a role in removing water and makes the hydrogen reach a certain pressure.

[0018] (3) A pressure sensor is provided on the hydrogen delivery pipeline of the utility model, which is connected to the signal of the water flow control valve in the hydrogen release device to control the reaction speed in the hydrogen release device and prevent the pipeline from rupturing due to excessive pressure.

[0019] (4) When the magnesium-based material in the utility model absorbs hydrogen, it will release a large amount of heat energy. This part of the heat energy can be used to boil water, provide heating, preheat materials, etc., which can save a lot of social energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] In the figure: 1. hydrogen generating device, 2. switch valve, 3. controller, 4. reaction device, 5. hydrogen content detector, 6. blowing device, 7. hydrogen releasing device, 8. condensing device, 9. pressure sensor, 10. hydrogen collecting device, 11. heat collecting device, 12. gas recovery device, 13. water flow control valve, 14. water tank, 15. hydrogen delivery pipeline 1, 16. hydrogen delivery pipeline 2, 17. water injection pipe, 18. pipeline. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] First embodiment

[0024] like Figure 1 As shown, the utility model provides a hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology, including a hydrogen generating device 1, a reaction device 4, a hydrogen releasing device 7, and a condensing device 8. A switch valve 2 and a controller 3 are arranged on a hydrogen delivery pipeline 15. A blowing device 6 is arranged at the bottom of the reaction device 4. A hydrogen content detector 5 is arranged at the top of the reaction device 4 for detecting the hydrogen content in the reaction device 4. The hydrogen content detector 5 is connected to the controller 3 through a wireless signal, and the controller 3 is electrically connected to the switch valve 2;

[0025] The hydrogen release device 7 is fixedly connected to the air inlet of the condensing device 8 through the hydrogen delivery pipeline 16, and the air outlet of the condensing device 8 is fixedly connected to the hydrogen collecting device 10 through the hydrogen delivery pipeline 16. The hydrogen release device 7 is connected to the water tank 14 through the water injection pipe 17, and the water injection pipe 17 is provided with a water flow control valve 13. The hydrogen delivery pipeline 16 between the condensing device 8 and the hydrogen collecting device 10 is provided with a pressure sensor 9. The pressure sensor 9 is connected to the water flow control valve 13 by wireless signal, and the water flow control valve 13 is used to control the water flow.

[0026] A pressure sensor water flow control valve is installed on the hydrogen delivery pipeline 2 and connected via wireless signals to control the reaction speed in the hydrogen release device to prevent rupture caused by excessive pressure. The condensation device removes water.

[0027] The reaction device 4 contains magnesium-based alloy powder, which reacts with hydrogen. The specific reaction formula is: Mg+H 2 →MgH 2 .

[0028] A hydrogen content detector 5 is provided in the reaction device 4 for detecting the hydrogen content in the reaction device 4. The hydrogen content detector 4 is connected to the controller 3 by signal. The controller 3 controls the opening and closing of the switch valve 2 according to the hydrogen content, so as to determine the amount of hydrogen entering the reaction device 4, ensure that the hydrogen can react completely with the magnesium-based alloy, increase the hydrogen storage efficiency, and avoid hydrogen reflux.

[0029] The bottom of the reaction device 4 is provided with a blowing device 6 to make the magnesium-based alloy powder float in the reaction device 4, thereby increasing the contact area with hydrogen and accelerating the reaction speed.

[0030] Second embodiment

[0031] The hydrogen release device 7 generates hydrogen by mixing solid hydride with water. The specific reaction formula is MgH 2 +2H 2 O→Mg(OH) 2 +2H 2 The condensing device 8 is connected to the hydrogen releasing device 7 to receive the generated hydrogen. The hydrogen produced by the hydrogen releasing device 7 is mixed with water. The condensing device 8 is set to achieve the purpose of removing water.

[0032] A water flow control valve 13 is provided in the water injection pipe 17. The opening size of the water flow control valve 13 is controlled by the pressure sensor 9 on the hydrogen delivery pipeline 16 to control the water flow speed and thus the reaction speed to prevent the pipeline from rupturing due to excessive pressure.

[0033] It should be noted that the reaction device 4 is connected to the heat collection device 11 through the pipeline 18 , and the heat collection device 11 is connected to the gas recovery device 12 through the pipeline 18 .

[0034] In the utility model, the heat released in the reaction device 4 can be utilized by the heat collection device 11. The heat collection device 11 has a water pipe, and cold water flows in through the water inlet. The heat generated by the reaction in the reaction device 4 is used to heat the cold water, and the hot water flows out through the water outlet. The heat collection device 11 can also be a boiler or other equipment that requires heat to achieve the purpose of energy saving.

[0035] It should be noted that the reaction MgH 2 +2H 2 O→Mg(OH) 2 +2H 2 , the hydrogen production efficiency is high, so hydrolysis is used to release hydrogen.

[0036] It should be noted that the utility model aims at safely transporting hydrogen, so the solid hydride after the reaction in the reaction device 4 needs to be transported to a designated location by means of transportation such as a car, and the hydrogen is released through the hydrogen release device 7 and collected in the hydrogen collection device 10.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology, comprising a hydrogen generating device (1), a reaction device (4), a hydrogen releasing device (7), and a condensing device (8), characterized in that: A switch valve (2) and a controller (3) are arranged on the first hydrogen delivery pipeline (15); a blowing device (6) is arranged at the bottom of the reaction device (4); a hydrogen content detector (5) is arranged at the top of the reaction device (4) for detecting the hydrogen content in the reaction device (4); the hydrogen content detector (5) is connected to the controller (3) via a wireless signal; and the controller (3) is electrically connected to the switch valve (2); The hydrogen release device (7) is fixedly connected to the air inlet of the condensing device (8) through the second hydrogen delivery pipeline (16), and the air outlet of the condensing device (8) is fixedly connected to the hydrogen collecting device (10) through the second hydrogen delivery pipeline (16). The hydrogen release device (7) is connected to the water tank (14) through a water injection pipe (17), and a water flow control valve (13) is arranged on the water injection pipe (17). A pressure sensor (9) is arranged on the second hydrogen delivery pipeline (16) between the condensing device (8) and the hydrogen collecting device (10), and the pressure sensor (9) is connected to the water flow control valve (13) by wireless signals, and the water flow control valve (13) is used to control the water flow.

2. A hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology according to claim 1, characterized in that: The reaction device (4) is connected to the hydrogen generating device (1) via the hydrogen delivery pipeline (15).

3. A hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology according to claim 2, characterized in that: The reaction device (4) is connected to a heat collection device (11) via a pipeline (18), and the heat collection device (11) is connected to a gas recovery device (12) via the pipeline (18).

4. A hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology according to claim 3, characterized in that: The heat collection device (11) has a water pipe inside, cold water flows in through the water inlet, and heat is generated by the reaction in the reaction device (4) to heat the cold water, and hot water flows out through the water outlet.

5. A hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology according to claim 1, characterized in that: The hydrogen release device (7) is provided with a filter screen inside to prevent solid particles from entering the second hydrogen delivery pipeline (16).

6. A hydrogen storage and transportation system based on magnesium-based solid-state hydrogen storage technology according to claim 1, characterized in that: The condensation device (8) is provided with a spiral condensation water pipeline and a water collector at the bottom.

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