Hydrogen desorption system of solid hydrogen storage bottle

Abstract

The utility model discloses a hydrogen release system for a solid hydrogen storage bottle, which relates to the technical field of solid hydrogen storage and comprises a solid hydrogen storage bottle, and a filter, a manual stop valve, a first pressure release valve, a first pressure sensor, a pressure regulating valve, a second pressure sensor, a second pressure release valve, a flow meter and a one-way valve which are sequentially communicated through a hydrogen release pipeline, the device further comprises a temperature control system, the temperature control system comprises a heater and a temperature detection sensor, the solid hydrogen storage bottle is placed in the heater, the temperature detection sensor is used for detecting the temperature of the solid hydrogen storage bottle, and the temperature of the solid hydrogen storage bottle is controlled through the heater. Through the arrangement of the filter, the manual stop valve, the first pressure release valve, the first pressure sensor, the pressure regulating valve, the second pressure sensor, the second pressure release valve, the flowmeter, the one-way valve and the temperature control system, the temperature, the pressure and the flow of the solid hydrogen storage bottle are controlled, and the regulation and intelligent control of the hydrogen flow are realized under the set temperature and pressure; safety and reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogen release from solid hydrogen storage cylinders, specifically to a hydrogen release system that can achieve self-regulation and control of hydrogen flow under set temperature and pressure. Background Technology

[0002] Solid-state hydrogen storage is a technology that stores hydrogen in a solid form within solid materials. This technology allows for hydrogen storage at lower pressures, thus improving safety and reducing leakage. Solid-state hydrogen storage typically uses solid media such as metal hydrides or carbon materials. The advantages of this storage method include small size, convenient transportation, and low risk of hydrogen leakage.

[0003] When releasing hydrogen from a solid-state hydrogen storage cylinder, it is necessary to control the pressure and flow rate for the following main reasons: 1. To prevent overpressure risks: If the pressure gets out of control when releasing hydrogen from the solid-state hydrogen storage material, it may cause overpressure in downstream pipelines, leading to safety hazards such as leaks and explosions. In particular, hydrogen is a flammable and explosive gas, and pressure control is necessary to ensure that the system operates within a safe threshold. 2. To avoid sudden flow changes: Sudden high-flow-rate hydrogen release may cause a sharp increase in the load on downstream equipment (such as fuel cells and engines), or static electricity buildup due to excessive flow rate, increasing safety risks. 3. To match the needs of hydrogen-using equipment: Different scenarios have different requirements for hydrogen pressure and flow rate. For example, hydrogen fuel cells require stable low-pressure hydrogen, usually 0.1-0.5 MPa, while internal combustion engines require higher pressure, usually 1-5 MPa. By adjusting the hydrogen release pressure and flow rate, the operating conditions of the equipment can be precisely matched, improving system efficiency. 4. To promote the full reaction of the hydrogen storage material: The hydrogen release process of solid-state hydrogen storage materials is significantly affected by temperature and pressure. For example, the release of hydrogen from metal hydrides requires endothermic reaction and is accompanied by pressure changes. By controlling the pressure, the reaction equilibrium can be adjusted, thereby improving the hydrogen release rate and material utilization.

[0004] Regarding hydrogen release technology for solid hydrogen storage cylinders, as disclosed in announcement number CN113531387B, an induction heating solid hydrogen storage and release system and a hydrogen storage and release method are disclosed. The system includes a solid hydrogen storage device, a cooling device, a first pressure sensor, a first valve, a filter device, a first check valve, a first temperature sensor, a flow sensor, a second pressure sensor, and a second valve, which are connected in sequence through a main pipeline. The solid hydrogen storage tank is made of magnetic material, and the magnetic field generated by the electromagnetic coil acts on the tank body, causing it to generate eddy currents and thus heat up.

[0005] Furthermore, announcement number CN217057140U discloses a portable solid-state hydrogen storage charging and discharging device, including a hydrogen-related device, a temperature control system, and a controller. The hydrogen-related device includes a solid-state hydrogen storage cylinder, a hydrogen charging pipeline, and a hydrogen discharging pipeline. The hydrogen discharging pipeline is equipped with a pressure reducing valve, a first pressure sensor, a first solenoid valve, and a mass flow controller.

[0006] However, the aforementioned hydrogen release systems or pipelines lack a control system for regulating and controlling the pressure and flow rate of hydrogen released from solid hydrogen storage cylinders. Therefore, we propose a solid hydrogen storage cylinder hydrogen release system to address the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and to provide a hydrogen release system for a solid hydrogen storage bottle.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a solid hydrogen storage cylinder hydrogen release system, comprising a solid hydrogen storage cylinder and a filter, a manual shut-off valve, a first pressure relief valve, a first pressure sensor, a pressure regulating valve, a second pressure sensor, a second pressure relief valve, a flow meter, and a check valve connected in sequence through a hydrogen release pipeline;

[0009] It also includes a temperature control system, which includes a heater and a temperature sensor. The solid hydrogen storage cylinder is placed inside the heater, and the temperature sensor is used to detect the temperature of the solid hydrogen storage cylinder. The heater is used to control the temperature of the solid hydrogen storage cylinder.

[0010] By adopting the above technical solution, the hydrogen gas output from the solid hydrogen storage cylinder first passes through a filter to remove fine dust from the hydrogen storage material, preventing it from affecting the components in the downstream hydrogen release pipeline. A manual shut-off valve is used to control the hydrogen flow and regulate its on / off state manually. A first pressure relief valve protects the outlet pressure of the solid hydrogen storage cylinder, preventing excessive pressure due to overheating, thus providing safety protection. A pressure regulating valve adjusts the hydrogen pressure. First and second pressure sensors detect the hydrogen pressure values ​​before and after the pressure regulating valve, respectively, serving as reference values ​​so that the pressure regulating valve can accurately adjust to the preset hydrogen pressure value. A second pressure relief valve protects the safety of the downstream hydrogen release pipeline. A flow meter controls the hydrogen flow rate in the release pipeline, and a check valve prevents hydrogen backflow. A heater and temperature sensor work together to control the temperature of the solid hydrogen storage cylinder.

[0011] Preferably, the heater is a heating belt, which is wrapped around the outside of the solid hydrogen storage cylinder.

[0012] Preferably, the device also includes a housing, wherein the solid hydrogen storage cylinder, filter, first pressure relief valve, first pressure sensor, pressure regulating valve, second pressure sensor, second pressure relief valve, flow meter, check valve and heating belt are all installed inside the housing, and the manual shut-off valve and pressure regulating valve are all installed on the outer wall of the housing.

[0013] Preferably, it also includes a PLC controller, and the first pressure relief valve, the first pressure sensor, the second pressure sensor, the second pressure relief valve, the flow meter, the heating belt, and the temperature detection sensor are respectively connected to the PLC controller.

[0014] Preferably, a touch screen is provided on the outer side of the housing, and the touch screen is connected to the PLC controller.

[0015] Preferably, the heating belt is attached to the bottom of the housing by a strap.

[0016] Preferably, the left and right panels of the enclosure are provided with heat dissipation vents, and a cooling fan is installed inside the enclosure at the heat dissipation vent.

[0017] Preferably, the solid hydrogen storage cylinder and the hydrogen release pipeline are connected by a flexible hose and a quick-connect plug.

[0018] Preferably, the hydrogen outlet is provided at the end of the hydrogen release pipeline away from the solid hydrogen storage cylinder, and the flow direction of the one-way valve is from the flow meter to the hydrogen outlet.

[0019] Preferably, a hydrogen concentration sensor is installed at the top of the chamber to detect the hydrogen concentration value inside the chamber.

[0020] Compared with related technologies, the solid hydrogen storage cylinder hydrogen release system provided by this utility model has the following beneficial effects:

[0021] This invention achieves control over the temperature, pressure, and flow rate of a solid hydrogen storage cylinder by incorporating a filter, a manual shut-off valve, a first pressure relief valve, a first pressure sensor, a pressure regulating valve, a second pressure sensor, a second pressure relief valve, a flow meter, a check valve, and a temperature control system. It enables the regulation and intelligent control of hydrogen flow rate under set temperature and pressure conditions, ensuring safety and reliability. Attached Figure Description

[0022] Figure 1 A 3D view of a hydrogen release system for a solid-state hydrogen storage cylinder;

[0023] Figure 2 This is a diagram of the internal structure of a hydrogen release system for a solid-state hydrogen storage cylinder.

[0024] Figure 3 This is a structural block diagram of a solid hydrogen storage cylinder hydrogen release system.

[0025] Reference numerals: 10, Solid hydrogen storage cylinder; 20, Filter; 30, Manual shut-off valve; 40, First pressure relief valve; 50, First pressure sensor; 60, Pressure regulating valve; 70, Second pressure sensor; 80, Second pressure relief valve; 90, Flow meter; 100, Check valve; 110, Heating belt; 120, Housing; 1201, Front panel; 1202, Rear panel; 130, PLC controller; 140, Touch screen; 150, Straps; 160, Cooling fan; 170, Hydrogen outlet. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0027] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. Example

[0029] like Figures 1 to 3As shown, this embodiment provides a solid-state hydrogen storage cylinder hydrogen release system, including a solid-state hydrogen storage cylinder 10 and a filter 20, a manual shut-off valve 30, a first pressure relief valve 40, a first pressure sensor 50, a pressure regulating valve 60, a second pressure sensor 70, a second pressure relief valve 80, a flow meter 90, and a one-way valve 100 connected sequentially through a hydrogen release pipeline. The solid-state hydrogen storage cylinder 10 and one end of the hydrogen release pipeline are connected by a flexible hose and a quick-connect plug. The quick-connect plug includes a male and a female quick-connect fitting, facilitating flexible disassembly and reassembly of the solid-state hydrogen storage cylinder 10. Hydrogen gas input from the solid-state hydrogen storage cylinder 10 into the hydrogen release pipeline first passes through the filter 20. Because the hydrogen storage material inside the solid-state hydrogen storage cylinder 10 may detach and be released with the hydrogen gas, the filter 20 is used to filter out fine dust particles of the hydrogen storage material in the hydrogen gas, preventing blockage of components in the downstream hydrogen release pipeline. The manual shut-off valve 30 is a valve for manually controlling the hydrogen flow and regulating the flow rate. The first pressure relief valve 40 is used to protect the hydrogen outlet pressure of the solid hydrogen storage cylinder 10, preventing excessive heating that could lead to a high outlet pressure and thus providing safety protection. The pressure regulating valve 60 is a manual pressure regulating valve used to adjust the hydrogen pressure in the hydrogen discharge pipeline. The first pressure sensor 50 and the second pressure sensor 70 are used to detect the hydrogen pressure values ​​before and after the pressure regulating valve 60, respectively, so that the pressure regulating valve 60 can accurately adjust to the preset hydrogen pressure value. The second pressure relief valve 80 is used to protect the safety of the hydrogen discharge pipeline downstream of the pressure regulating valve 60. The flow meter 90 is used to detect the real-time hydrogen flow rate in the hydrogen discharge pipeline, and the one-way valve 100 is used to prevent hydrogen backflow. Therefore, the solid hydrogen storage cylinder hydrogen discharge system of this application can accurately control the pressure and flow rate of the hydrogen output from the solid hydrogen storage cylinder 10.

[0030] It also includes a temperature control system, which comprises a heater and a temperature sensor. The temperature sensor is located on the inner wall of the heater, and the solid hydrogen storage cylinder 10 is placed inside the heater. The temperature sensor is in contact with the outer wall of the solid hydrogen storage cylinder 10. The temperature sensor is used to detect the temperature of the solid hydrogen storage cylinder 10, and the heater is used to heat the solid hydrogen storage cylinder 10. The solid hydrogen storage cylinder 10 absorbs heat during the hydrogen release process, and the heater heats the solid hydrogen storage cylinder 10 to the set temperature value. Through the cooperation of the heater and the temperature sensor, precise temperature control of the solid hydrogen storage cylinder 10 is achieved.

[0031] The above are merely preferred embodiments of this utility model and do not limit the implementation methods and protection scope of this utility model. Based on the above, this invention also has the following embodiments:

[0032] In this embodiment, the heater uses a heating band 110, which can be wrapped around the outside of the solid hydrogen storage tank 10. The outer insulating material of the heating band 110 is silicone rubber coated fiberglass cloth, and a nickel-chromium alloy is installed inside as a heating element, with a thickness of 1.5-2mm. Velcro is provided at both ends of the heating band 110 for easy insertion or removal from the solid hydrogen storage tank 10.

[0033] In this embodiment, a housing 120 is also included. The housing 120 has an internal storage space, and the solid hydrogen storage cylinder 10, filter 20, first pressure relief valve 40, first pressure sensor 50, pressure regulating valve 60, second pressure sensor 70, second pressure relief valve 80, flow meter 90, one-way valve 100, and heating belt 110 are all installed inside the housing 120. The rear panel 1202 of the housing 120 is a door that can be opened or closed. The manual shut-off valve 30 and pressure regulating valve 60 are both installed on the outer wall of the front panel 1201 of the housing 120, facilitating manual operation of the manual shut-off valve 30 and pressure regulating valve 60.

[0034] In this embodiment, a PLC controller 130 is also included. The first pressure relief valve 40, the first pressure sensor 50, the second pressure sensor 70, the second pressure relief valve 80, the flow meter 90, the heating belt 110, and the temperature detection sensor are respectively connected to the PLC controller 130. The PLC controller 130 processes analog signals such as temperature, pressure, and flow to achieve PID control.

[0035] In this embodiment, the front panel 1201 of the housing 120 is equipped with a touch screen 140, which is connected to the PLC controller 130 to realize human-machine interaction.

[0036] In this embodiment, a strap 150 is also included. The strap 150 is fixed to the bottom of the housing 120. The heating belt 110 is positioned at the bottom of the housing 120 via the strap 150, and the strap 150 has snaps. The heating belt 110 itself is movable. After the heating belt 110 wraps around the solid hydrogen storage bottle 10, it is placed inside the strap 150. The strap 150 and the snaps fix the heating belt 110 and the solid hydrogen storage bottle 10, preventing the solid hydrogen storage bottle 10 from shaking.

[0037] In this embodiment, in order to prevent the temperature inside the enclosure 120 from getting too high, heat dissipation vents are provided on both the left and right panels of the enclosure 120. A cooling fan 160 is installed inside the enclosure 120 at the heat dissipation vents. The operation of the cooling fan 160 can dissipate the heat inside the enclosure 120 to the outside.

[0038] In this embodiment, a hydrogen outlet 170 is provided at the end of the hydrogen release pipeline away from the solid hydrogen storage cylinder 10. The flow direction of the one-way valve 100 is from the flow meter 90 to the hydrogen outlet 170. The hydrogen outlet 170 is used to connect to hydrogen-using equipment.

[0039] In this embodiment, a hydrogen concentration sensor is installed at the top of the box 120 to detect the hydrogen concentration value inside the box 120. The hydrogen concentration sensor is connected to the PLC controller 130 and sends the detected real-time hydrogen concentration value to the PLC controller 130. When the hydrogen concentration value exceeds the preset maximum hydrogen concentration value, an alarm will be sounded.

[0040] In this embodiment, the housing 120 has a power socket and a power button. Connecting a 220V household power supply to the power socket and pressing the power button will power the entire system.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A hydrogen release system for a solid hydrogen storage cylinder, characterized in that: It includes a solid hydrogen storage cylinder (10) and a filter (20), a manual shut-off valve (30), a first pressure relief valve (40), a first pressure sensor (50), a pressure regulating valve (60), a second pressure sensor (70), a second pressure relief valve (80), a flow meter (90), and a check valve (100) connected in sequence through a hydrogen release pipeline; It also includes a temperature control system, which includes a heater and a temperature detection sensor. The solid hydrogen storage cylinder (10) is placed inside the heater, and the temperature detection sensor is used to detect the temperature of the solid hydrogen storage cylinder (10). The temperature of the solid hydrogen storage cylinder (10) is controlled by the heater.

2. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 1, characterized in that: The heater uses a heating band (110) which is wrapped around the outside of the solid hydrogen storage bottle (10).

3. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 2, characterized in that: It also includes a housing (120), in which the solid hydrogen storage cylinder (10), filter (20), first pressure relief valve (40), first pressure sensor (50), pressure regulating valve (60), second pressure sensor (70), second pressure relief valve (80), flow meter (90), check valve (100) and heating belt (110) are all installed inside the housing (120), and the manual shut-off valve (30) and pressure regulating valve (60) are both installed on the outer wall of the housing (120).

4. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 3, characterized in that: It also includes a PLC controller (130), and the first pressure relief valve (40), the first pressure sensor (50), the second pressure sensor (70), the second pressure relief valve (80), the flow meter (90), the heating belt (110), and the temperature detection sensor are respectively connected to the PLC controller (130).

5. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 4, characterized in that: A touch screen (140) is provided on the outer side of the housing (120), and the touch screen (140) is connected to the PLC controller (130).

6. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 3, characterized in that: The heating band (110) is attached to the bottom of the housing (120) by a strap (150).

7. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 3, characterized in that: The left and right panels of the enclosure (120) are provided with heat dissipation vents, and a cooling fan (160) is installed inside the enclosure (120) at the heat dissipation vents.

8. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 1, characterized in that: The solid hydrogen storage cylinder (10) and the hydrogen release pipeline are connected by a hose and a quick-connect plug.

9. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 1, characterized in that: The hydrogen release pipeline is provided with a hydrogen outlet (170) at the end away from the solid hydrogen storage cylinder (10), and the flow direction of the one-way valve (100) is from the flow meter (90) to the hydrogen outlet (170).

10. The hydrogen release system for a solid-state hydrogen storage cylinder according to claim 4, characterized in that: A hydrogen concentration sensor is installed at the top of the box (120) to detect the hydrogen concentration value inside the box (120).

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