Modularized solid hydrogen storage system

Abstract

The utility model provides a modularized solid hydrogen storage system which comprises a hydrogen pipeline, and a plurality of hydrogen storage devices are arranged in parallel and convey hydrogen to the hydrogen pipeline through quick connectors respectively. The circulating water path is used for charging and discharging hydrogen to exchange heat energy for the plurality of hydrogen storage devices. The hydrogen supply device has the advantages of being reasonable in structural design, convenient to disassemble and assemble, high in module combinability and high in adaptability of hydrogen supply rate and capacity.

Description

Technical Field

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

[0002] With the proposed "dual carbon" goals, China is vigorously adjusting and optimizing its energy structure, actively promoting the use of green energy sources such as hydrogen, solar energy, and wind energy to replace traditional fossil fuels. Hydrogen is considered an ideal clean energy source, offering advantages such as light weight, abundant reserves, and environmental friendliness. Hydrogen production, storage, transportation, and application technologies will also become a focus of attention in the 21st century.

[0003] Currently, the main hydrogen storage methods include high-pressure hydrogen storage, liquid hydrogen storage, and solid-state hydrogen storage. High-pressure hydrogen storage is widely used and offers advantages such as low cost and fast charging and discharging. However, high-pressure hydrogen storage devices carry risks of hydrogen leakage and container explosion. Low-temperature liquid hydrogen storage methods, while offering high storage efficiency and energy density, are also costly. Solid-state hydrogen storage technology is characterized by low-pressure safety, high volumetric hydrogen storage capacity, strong hydrogen source purification, and adaptability. Solid-state hydrogen storage devices can be used for long-term storage, reducing safety pressures and enabling the integrated purification, storage, and transportation of industrial by-product hydrogen.

[0004] Solid-state hydrogen storage technology offers significant safety advantages and has attracted widespread attention in the hydrogen energy sector. However, the larger the solid-state hydrogen storage capacity, the heavier it is. Existing solid-state hydrogen storage devices are complex in structure, difficult to manufacture and maintain, and inconvenient to replace the hydrogen storage materials and transport the device. The cost of replacing all of them at once is high. Utility Model Content

[0005] The purpose of the utility model is to provide a modular solid-state hydrogen storage system with reasonable structural design, convenient assembly and disassembly, strong module combination and strong adaptability.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0007] A modular solid-state hydrogen storage system includes a hydrogen pipeline, a plurality of hydrogen storage devices arranged in parallel and respectively delivering hydrogen to the hydrogen pipeline through quick-connect connectors; and a circulating water circuit for exchanging heat energy for charging and discharging hydrogen in the plurality of hydrogen storage devices.

[0008] Furthermore, the hydrogen pipeline includes a pipeline from the hydrogen storage device to the load equipment, each hydrogen storage device is connected to the hydrogen pipeline via a quick connector and a metal hose, and the hydrogen pipeline is connected in sequence to a hydrogen pressure relief valve, a filter, a pressure reducing valve, and a flow meter.

[0009] Furthermore, the hydrogen pipeline is also connected to a hydrogen filling reserved port.

[0010] Furthermore, the circulating water line is sequentially connected to a water tank, a circulating pump, a heat exchanger, and various hydrogen storage devices via quick-connect connectors.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] The utility model provides a modular solid-state hydrogen storage system with reasonable structural design, convenient assembly and disassembly, strong module combination, and strong adaptability of hydrogen supply rate and capacity size. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the circuit arrangement structure of the present utility model.

[0014] Figure numerals: 1. Hydrogen pipeline; 2. Hydrogen filling reserved port; 3. Hydrogen pressure relief valve; 4. Filter; 5. Pressure reducing valve; 6. Flow meter; 7. Circulating water circuit; 8. Water tank; 9. Circulating pump; 10. Heat exchanger; 11. Quick-connect connector 2; 12. Hydrogen storage device; 13. Quick-connect connector 1; 14. Metal hose. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, a modular solid-state hydrogen storage system includes a hydrogen pipeline 1, a plurality of hydrogen storage devices 12 arranged in parallel and respectively delivering hydrogen to the hydrogen pipeline 1 through a quick-connect connector 13; and also includes a circulating water circuit 7, which exchanges heat energy for charging and discharging hydrogen for the plurality of hydrogen storage devices 12.

[0017] The hydrogen pipeline 1 includes a pipeline from a hydrogen storage device 12 to a load device. Each hydrogen storage device 12 is connected to the hydrogen pipeline 1 via a quick-connect connector 13 and a metal hose 14. The hydrogen pipeline 1 is sequentially connected to a hydrogen pressure relief valve 3, a filter 4, a pressure reducing valve 5, and a flow meter 6. Preferably, the hydrogen pipeline 1 is also connected to a hydrogen charging port 2.

[0018] The circulating water circuit 7 is sequentially connected to a water tank 8 , a circulating pump 9 , a heat exchanger 10 and is connected to various hydrogen storage devices 12 via a second quick-connect connector 11 .

[0019] The hydrogen storage device 12 stores hydrogen in a solid state. When charging, the hydrogen is converted from a gaseous state to a solid state, releasing heat. When discharging, the hydrogen is converted from a solid state to a gaseous state, absorbing heat.

[0020] The working principle of the present invention is as follows: when the hydrogen storage device 12 discharges hydrogen, the circulation pump 9 is turned on to provide the hydrogen storage device 12 with the energy required for hydrogen discharge, and the liquid in the water tank 8 is heated by electric heating to meet the energy required for hydrogen discharge. The hydrogen enters the load equipment after passing through the quick plug 13, the metal hose 14 and the filter 4, the pressure reducing valve 5 and the flow meter 6 on the hydrogen pipeline 1; when the hydrogen storage device 12 is charged with hydrogen, there are two ways: one is to charge all or part of the hydrogen storage devices 12 in the system, and connect the hydrogen that meets the requirements through the hydrogen charging reserved port 2 to charge the system. The heat generated during hydrogen charging will be taken away by the joint action of the circulation pump 9 and the heat exchanger 10, and the heat exchanger 10 exchanges with the external cold energy to take away the heat; the second is to charge part of the hydrogen storage devices 12 in the system, and by transporting the hydrogen storage devices 12 to the hydrogen charging device for hydrogen charging, they can be charged separately without affecting the normal operation of other hydrogen storage devices 12 in the system.

[0021] The structural design feature of the present invention is that the amount and rate of hydrogen required by the load equipment can be determined and adjusted according to the number of hydrogen storage devices 12 connected to the hydrogen pipeline 1.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A modular solid-state hydrogen storage system, including a hydrogen pipeline, characterized in that: Several hydrogen storage devices are arranged in parallel and respectively deliver hydrogen to the hydrogen pipeline through quick-connect connectors; a circulating water circuit is also included, which charges and discharges hydrogen to exchange heat energy for the several hydrogen storage devices.

2. A modular solid-state hydrogen storage system according to claim 1, characterized in that: The hydrogen pipeline includes a pipeline from the hydrogen storage device to the load equipment. Each hydrogen storage device is connected to the hydrogen pipeline via a quick connector and a metal hose. The hydrogen pipeline is connected to a hydrogen pressure relief valve, a filter, a pressure reducing valve, and a flow meter in sequence.

3. A modular solid-state hydrogen storage system according to claim 2, characterized in that: The hydrogen pipeline is also connected with a hydrogen filling reserved port.

4. The modular solid-state hydrogen storage system according to claim 1, characterized in that: The circulating water line is sequentially connected to a water tank, a circulating pump, a heat exchanger, and various hydrogen storage devices via quick-connect connectors.

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