Solid hydrogen bottle capable of efficiently and stably releasing hydrogen

Abstract

The utility model discloses a solid hydrogen cylinder capable of efficiently and stably releasing hydrogen, which comprises a solid hydrogen cylinder, a cylinder head valve, a semiconductor thermoelectric power generation sheet and a heating component, the cylinder head valve is fixedly connected to a hydrogen outlet of the solid hydrogen cylinder, and the cold end of the semiconductor thermoelectric power generation sheet is fixedly connected to the outer side wall of the solid hydrogen cylinder. The heating assembly is fixedly connected to the bottom of the solid hydrogen bottle and is connected with the semiconductor thermoelectric power generation sheet through a circuit; when the solid hydrogen bottle releases solid hydrogen in the bottle, the solid hydrogen absorbs heat and is gasified, so that the temperature of the side wall of the solid hydrogen bottle is reduced, a temperature difference is generated between the solid hydrogen bottle and the external environment, and the semiconductor thermoelectric power generation sheet on the side wall of the solid hydrogen bottle generates power to drive the heating assembly to heat the bottom of the solid hydrogen bottle; and the temperature stability of the solid hydrogen storage bottle in the hydrogen desorption process is ensured, so that the hydrogen desorption efficiency is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydrogen storage equipment, specifically a solid hydrogen cylinder that releases hydrogen efficiently and stably. Background Technology

[0002] Currently, solid-state hydrogen storage technology has become a research hotspot in the field of hydrogen storage due to its advantages such as high safety, high volumetric hydrogen storage density, and low energy consumption. In the solid-state hydrogen storage process, the hydrogen storage material reacts chemically with hydrogen to store it, and releasing hydrogen requires the absorption of heat to promote the reverse reaction. However, in the existing solid-state hydrogen storage cylinders, the hydrogen release rate slows down due to untimely or insufficient heat replenishment during the hydrogen release process, affecting the effective utilization of hydrogen energy. For example, some traditional solid-state hydrogen storage cylinders rely solely on ambient heat for hydrogen release. When the ambient temperature is low or the demand for hydrogen release is high, the hydrogen release efficiency drops significantly, failing to meet the needs of practical application scenarios. Utility Model Content

[0003] The purpose of this invention is to provide a highly efficient and stable solid hydrogen cylinder for releasing hydrogen, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and stable hydrogen-releasing solid hydrogen cylinder, comprising a solid hydrogen cylinder, a cylinder head valve, a semiconductor thermoelectric generator, and a heating assembly. The cylinder head valve is fixedly connected to the hydrogen outlet of the solid hydrogen cylinder, the cold end of the semiconductor thermoelectric generator is fixedly connected to the outer wall of the solid hydrogen cylinder, and the heating assembly is fixedly connected to the bottom of the solid hydrogen cylinder and is connected to the semiconductor thermoelectric generator through a circuit.

[0005] Furthermore, a temperature sensor is fixedly connected to the bottle head valve to monitor the temperature of the hydrogen flowing out of the bottle head valve. The temperature sensor, the semiconductor thermoelectric generator, and the heating assembly are connected through a circuit and a controller.

[0006] The temperature of hydrogen is monitored by a temperature sensor, and the heating components are started and stopped by a controller based on the temperature to ensure a suitable temperature during the hydrogen release process.

[0007] Furthermore, the heating component is a PTC heating component.

[0008] Furthermore, thermally conductive silicone grease is applied between the cold end of the semiconductor thermoelectric generator and the outer wall of the solid hydrogen cylinder.

[0009] Thermal grease can be used to improve the heat transfer efficiency between the solid hydrogen cylinder and the thermoelectric generator.

[0010] Furthermore, multiple sets of the semiconductor thermoelectric generators are connected in series or parallel.

[0011] Power generation efficiency can be improved by connecting multiple sets of semiconductor thermoelectric generators in series or parallel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes the fact that when solid hydrogen is released from a solid hydrogen cylinder, the solid hydrogen absorbs heat and vaporizes, causing the temperature of the solid hydrogen cylinder's side wall to decrease and creating a temperature difference with the external environment. Then, a semiconductor thermoelectric generator on the side wall of the solid hydrogen cylinder generates electricity to drive a heating component to heat the bottom of the solid hydrogen cylinder, ensuring that the temperature of the solid hydrogen storage cylinder remains stable during the hydrogen release process, thereby ensuring the hydrogen release efficiency. Attached Figure Description

[0014] Figure 1 This is a front view of the highly efficient and stable hydrogen release solid hydrogen cylinder provided in this embodiment of the utility model;

[0015] Figure 2 This is a left view of the highly efficient and stable hydrogen release solid hydrogen cylinder provided in this embodiment of the utility model;

[0016] In the diagram, 1-solid hydrogen cylinder, 2-cylinder head valve, 3-semiconductor thermoelectric generator, 4-PTC heating assembly, 21-temperature sensor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a high-efficiency and stable hydrogen release solid hydrogen cylinder, including a solid hydrogen cylinder 1, a cylinder head valve 2, a semiconductor thermoelectric generator 3, and a PTC heating assembly 4. The cylinder head valve 2 is fixedly connected to the hydrogen outlet of the solid hydrogen cylinder 1. A temperature sensor 21 is fixedly connected to the cylinder head valve 2 to monitor the temperature of the hydrogen flowing out of the cylinder head valve 2. Multiple semiconductor thermoelectric generators 3 are connected in series or in parallel, and the cold end of the semiconductor thermoelectric generator 3 is fixedly connected to the outer wall of the solid hydrogen cylinder 1. Thermally conductive silicone grease is applied to the connection surface between the cold end of the semiconductor thermoelectric generator 3 and the solid hydrogen cylinder 1. The PTC heating assembly 4 is fixedly connected to the bottom of the solid hydrogen cylinder 1. The temperature sensor 21, the semiconductor thermoelectric generator 3, and the PTC heating assembly 4 are connected through a circuit and a controller.

[0019] In the specific implementation process, when the solid hydrogen cylinder 1 releases solid hydrogen from the cylinder, the solid hydrogen absorbs heat and vaporizes, which lowers the temperature of the side wall of the solid hydrogen cylinder 1. This creates a temperature difference between the solid hydrogen cylinder 1 and the external environment. The semiconductor thermoelectric generator 3 generates electricity to drive the PTC heating component 4 to heat the bottom of the solid hydrogen cylinder 1, ensuring that the temperature of the solid hydrogen storage cylinder 1 remains stable during the hydrogen release process, thereby ensuring the hydrogen release efficiency.

[0020] It should be noted that the temperature sensor 21, the thermoelectric generator 3, the PTC heating element 4, and the controller are all commercially available components. Their specific models and specifications need to be selected and determined based on the actual specifications of the device. The selection calculation method adopts existing technology in this field, so it will not be described in detail here. The power supply connection of the PTC heating element 4 and the control principle of the controller are clear to those skilled in the art, and will not be described in detail here.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency stable hydrogen releasing solid hydrogen bottle, characterized in that: The device includes a solid hydrogen cylinder, a cylinder head valve, a semiconductor thermoelectric generator, and a heating assembly. The cylinder head valve is fixedly connected to the hydrogen outlet of the solid hydrogen cylinder. The cold end of the semiconductor thermoelectric generator is fixedly connected to the outer wall of the solid hydrogen cylinder. The heating assembly is fixedly connected to the bottom of the solid hydrogen cylinder and is connected to the semiconductor thermoelectric generator through a circuit.

2. The high efficient and stable hydrogen releasing solid hydrogen bottle according to claim 1, characterized in that: A temperature sensor is fixedly connected to the bottle head valve to monitor the temperature of the hydrogen flowing out of the bottle head valve. The temperature sensor, the semiconductor thermoelectric generator, and the heating component are connected through a circuit and a controller.

3. The high efficient and stable hydrogen releasing solid hydrogen bottle according to claim 2, characterized in that: The heating component is a PTC heating component.

4. The high efficient and stable hydrogen releasing solid hydrogen bottle according to claim 1, characterized in that: Thermal grease is applied between the cold end of the semiconductor thermoelectric generator and the outer wall of the solid hydrogen cylinder.

5. The high efficient and stable hydrogen releasing solid hydrogen bottle according to claim 1, characterized in that: The semiconductor thermoelectric generators are connected in series or in parallel in multiple sets.

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