Hydrogen storage bottle for hydrogen energy

Abstract

The utility model relates to the technical field of hydrogen energy storage, and discloses a hydrogen storage bottle for hydrogen energy, which comprises a base, a bottle body and the like. The bottle body is of a multi-layer composite structure and comprises an inner container layer, a buffer layer and a shell layer, a first bottle mouth and a second bottle mouth are arranged at an upper-end bottle opening, a pressure sensor, a temperature sensor and a hydrogen leakage sensor are installed inside and at the joint respectively, and a fireproof heat insulation layer is sleeved on the outer side. The multi-layer structure has the advantages that in the multi-layer structure, the inner container prevents hydrogen permeation, the buffer layer absorbs energy, the shell provides high-strength protection, and the impact resistance and the safety performance are improved; the manual valve and the automatic valve are arranged, so that hydrogen storage safety is guaranteed; the pressure, temperature and leakage conditions in the bottle can be comprehensively monitored in real time, and abnormity disposal is facilitated; the bottle is protected when the fireproof heat insulation layer has an accident, and the safety of the hydrogen storage bottle in different environments is enhanced by a reliable protection structure.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen energy storage technology, specifically to a hydrogen storage cylinder for hydrogen energy. Background Technology

[0002] With the increasing global demand for clean energy, hydrogen energy, as an efficient, clean, and sustainable energy carrier, has shown enormous development potential in the energy sector. The widespread application of hydrogen energy, such as hydrogen fuel cell vehicles and distributed power generation, relies heavily on safe and efficient hydrogen storage technology. Hydrogen storage cylinders, as key equipment for hydrogen storage, directly impact the promotion and application of hydrogen energy.

[0003] Currently, traditional hydrogen storage cylinders are mostly single-layer or simple multi-layer structures. When subjected to external impact, they cannot effectively disperse and absorb energy, which can easily lead to cylinder rupture and hydrogen leakage. They also lack real-time monitoring methods, making it difficult to detect abnormal changes in parameters such as pressure and temperature inside the cylinder in a timely manner and to take timely measures to prevent danger from occurring. Utility Model Content

[0004] To address the aforementioned technical problems, this invention provides a hydrogen storage cylinder for hydrogen energy. It solves the problems that traditional hydrogen storage cylinders are mostly single-layer or simple multi-layer structures, which cannot effectively disperse and absorb energy when subjected to external impacts, easily leading to cylinder rupture and hydrogen leakage. Furthermore, they lack real-time monitoring methods, making it difficult to detect abnormal changes in parameters such as pressure and temperature inside the cylinder in a timely manner, and making it difficult to take timely measures to prevent danger.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a hydrogen storage cylinder for hydrogen energy, including a base and a cylinder body. The cylinder body adopts a multi-layer composite structure, consisting of an inner liner layer, a buffer layer, and an outer shell layer from the inside out. The upper end of the cylinder body is provided with a bottle mouth, on which a first nozzle and a second nozzle are installed. A pressure sensor is installed inside the inner liner layer. A temperature sensor is provided between the inner liner layer and the buffer layer. A hydrogen leakage sensor is provided at the connection between the bottle mouth and the cylinder body. A fireproof and heat-insulating layer is fitted on the outer surface of the cylinder body.

[0006] As an improvement, the inner liner is made of a hydrogen-permeable metal material, the buffer layer is made of porous aluminum foam, and the outer shell is made of high-strength carbon fiber composite material. The hydrogen-permeable metal material can effectively prevent hydrogen permeation and ensure the storage stability of hydrogen. The porous aluminum foam material has good energy absorption characteristics, which can absorb and disperse energy when the bottle is subjected to external impact, reducing damage to the inner liner. The high-strength carbon fiber composite material has the characteristics of high strength and lightweight, and can provide reliable external protection.

[0007] As an improvement, the annular rubber sealing ring at the connection between the bottle mouth and the inner liner layer, and the sealing gasket set at the end of the bottle mouth, and the hydrogen leakage sensor equipped with an alarm, the annular rubber sealing ring can effectively prevent hydrogen from leaking from the connection, and the sealing gasket further enhances the sealing performance.

[0008] As an improvement, the first and second nozzles are respectively equipped with a manual valve and an automatic valve. The first nozzle is threaded. The manual valve is used to manually control the entry and exit of hydrogen gas. The automatic valve opens automatically when the pressure inside the bottle exceeds the set value to release excess hydrogen gas and prevent the bottle from rupturing due to excessive pressure.

[0009] As an improvement, the fireproof and heat-insulating layer is made of ceramic fiber material with high temperature resistance and good heat insulation performance, which effectively prevents heat from being transferred to the inside of the bottle and protects the safety of the hydrogen inside the bottle.

[0010] Compared with existing technologies, the advantages of this utility model are as follows: It adopts a multi-layer composite structure, with an inner liner layer effectively preventing hydrogen permeation, a buffer layer absorbing impact energy, and an outer shell layer providing high-strength protection, significantly improving the impact resistance and safety performance of the cylinder. The dual setting of manual and automatic valves makes hydrogen storage safer. Real-time and comprehensive monitoring of internal pressure, temperature, and hydrogen leakage facilitates timely detection and handling of abnormalities, ensuring the safe operation of the hydrogen storage cylinder. The fireproof and heat-insulating layer protects the cylinder in case of accidents, and the reliable protective structure further enhances the safety of the hydrogen storage cylinder in different environments. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0013] As shown in the figure: 1. Base; 2. Fireproof and heat-insulating layer; 3. Bottle mouth; 4. Hydrogen leak sensor; 5. Alarm; 6. First bottle mouth; 7. Manual valve; 8. Thread; 9. Second bottle mouth; 10. Automatic valve; 11. Annular rubber sealing ring; 12. Bottle body; 13. Outer shell layer; 14. Buffer layer; 15. Inner liner layer; 16. Pressure sensor; 17. Temperature sensor. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] This invention combines hydrogen storage with... Figures 1 to 2A hydrogen storage cylinder for hydrogen energy includes a base 1 and a cylinder body 12. The cylinder body 12 adopts a multi-layer composite structure, consisting of an inner liner layer 15, a buffer layer 14, and an outer shell layer 13 from the inside out. A cylinder opening 3 is provided at the upper end of the cylinder body 12, with a first nozzle 6 and a second nozzle 9 installed on the opening 3. A pressure sensor 16 is installed inside the inner liner layer 15. A temperature sensor 17 is provided between the inner liner layer 15 and the buffer layer 14. A hydrogen leakage sensor 4 is provided at the connection between the opening 3 and the cylinder body 12. A fireproof and heat-insulating layer 2 is fitted onto the outer surface of the cylinder body 12, and the fireproof and heat-insulating layer 2 is made of high-temperature resistant and heat-insulating ceramic fiber material. The inner liner 15 is made of hydrogen-permeable metal material, the buffer layer 14 is made of porous aluminum foam material, and the outer shell 13 is made of high-strength carbon fiber composite material. The hydrogen-permeable metal material can effectively prevent hydrogen permeation and ensure the storage stability of hydrogen. The porous aluminum foam material has good energy absorption characteristics. When the bottle is subjected to external impact, it can absorb and disperse energy and reduce damage to the inner liner 15. The high-strength carbon fiber composite material has the characteristics of high strength and lightweight, and can provide reliable external protection.

[0016] The annular rubber sealing ring 11 at the connection between the bottle mouth 3 and the inner liner layer 15, and the sealing gasket at the end of the bottle mouth, the hydrogen leakage sensor 4 is equipped with an alarm 5, the annular rubber sealing ring 11 can effectively prevent hydrogen from leaking from the connection, and the sealing gasket further enhances the sealing performance.

[0017] The first nozzle 6 and the second nozzle 9 are respectively equipped with a manual valve 7 and an automatic valve 10. The first nozzle 6 is provided with a thread 8. The manual valve 7 is used to manually control the entry and exit of hydrogen. The automatic valve 10 opens automatically when the pressure inside the bottle 12 exceeds the set value, releasing excess hydrogen and preventing the bottle 12 from rupturing due to excessive pressure.

[0018] In actual use, when the hydrogen storage cylinder is subjected to a slight impact, the buffer layer 14 absorbs most of the impact energy, ensuring that the inner liner 15 is not damaged. If the pressure inside the cylinder suddenly increases for some reason, the automatic valve 10 will open quickly to release excess hydrogen. If a hydrogen leak occurs, the hydrogen leak sensor 4 will immediately issue an alarm and cut off the hydrogen supply. At the same time, the operator can further control the hydrogen flow through the manual valve 7. The pressure sensor 16 monitors the hydrogen pressure inside the cylinder in real time. Once the pressure exceeds the normal range, it will issue an early warning in time. The temperature sensor 17 accurately measures the temperature of the hydrogen inside the cylinder, because temperature changes may affect the storage performance of hydrogen and the performance of the cylinder body 12 material.

[0019] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A hydrogen storage cylinder for hydrogen energy, comprising a base (1) and a cylinder body (12), characterized in that, The bottle body (12) adopts a multi-layer composite structure, consisting of an inner liner layer (15), a buffer layer (14), and an outer shell layer (13) from the inside out. The bottle body (12) has a bottle mouth (3) at the top, and a first nozzle (6) and a second nozzle (9) are installed on the bottle mouth (3). A pressure sensor (16) is installed inside the inner liner layer (15). A temperature sensor (17) is provided between the inner liner layer (15) and the buffer layer (14). A hydrogen leakage sensor (4) is provided at the connection between the bottle mouth (3) and the bottle body (12). A fireproof and heat-insulating layer (2) is fitted on the outer surface of the bottle body (12).

2. A hydrogen storage cylinder for hydrogen energy according to claim 1, characterized in that, The inner liner (15) is made of a hydrogen-resistant metal material, the buffer layer (14) is made of porous aluminum foam, and the outer shell layer (13) is made of high-strength carbon fiber composite material.

3. A hydrogen storage cylinder for hydrogen energy according to claim 1, characterized in that, The annular rubber sealing ring (11) at the connection between the bottle mouth (3) and the inner liner (15), and the sealing gasket at the end of the bottle mouth, and the hydrogen leakage sensor (4) is equipped with an alarm (5).

4. A hydrogen storage cylinder for hydrogen energy according to claim 1, characterized in that, The first bottle mouth (6) and the second bottle mouth (9) are respectively provided with a manual valve (7) and an automatic valve (10), and the first bottle mouth (6) is provided with a thread (8).

5. A hydrogen storage cylinder for hydrogen energy according to claim 1, characterized in that, The fireproof and heat-insulating layer (2) is made of ceramic fiber material with high temperature resistance and good heat insulation performance.

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