Solid hydrogen storage device for rapid filling

Abstract

The utility model discloses a solid hydrogen storage device suitable for quick filling, which comprises a hydrogen storage tank and an end cover, the end cover is provided with a hydrogen inlet / outlet, the hydrogen inlet / outlet is connected with a bottle valve, the bottle valve comprises a valve body, a gas outlet and a manual knob at the top of the valve body, the bottom of the hydrogen storage tank is provided with an integrated heating and radiating module, and the hydrogen storage tank is provided with a controller. A gas outlet of the bottle valve is connected with an electromagnetic valve, the electromagnetic valve is connected with a quick connector, the quick connector is connected to a hydrogen inlet of the hydrogen fuel cell through a hydrogen pipeline, the bottle valve is further provided with a temperature and pressure integrated sensor and a quick connector used for filling hydrogen, and the temperature and pressure integrated sensor and the integrated heating and heat dissipation module are electrically connected with a controller. The hydrogen storage device is simple and compact in structure, the operation process of connecting a hydrogen pipeline during hydrogen filling is simplified by adopting the quick connector, and the hydrogen storage tank is heated or cooled by the integrated heating and cooling module at the bottom of the hydrogen storage tank, so that the hydrogen release or filling efficiency of the hydrogen storage device is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of solid-state hydrogen storage, and in particular relates to a solid-state hydrogen storage device for rapid filling. Technical Background

[0002] In the hydrogen energy industry chain, the storage and transportation link connects the upstream hydrogen production and downstream hydrogen use, so it is particularly critical. Hydrogen is mainly stored in three forms: high-pressure gas, liquid and solid. Among them, solid-state hydrogen storage technology has the advantages of high volume hydrogen storage density, good safety, long storage time, and good controllability. It is suitable for occasions with small volume and relatively high safety requirements, such as hydrogen fuel cell vehicles. Therefore, solid-state hydrogen storage is considered to be the most promising hydrogen storage technology.

[0003] When filling the hydrogen storage device with hydrogen, the volume of the hydrogen tank increases with the filling of hydrogen, and the temperature increases accordingly, which slows down the filling speed of hydrogen, thereby affecting the efficiency of hydrogen filling. On the contrary, when releasing hydrogen to the hydrogen fuel cell, the volume of the hydrogen tank decreases continuously, and the temperature decreases accordingly, affecting the reaction rate of the fuel cell. In addition, the general circular hydrogen storage tank occupies the installation space and is limited in application in limited space; the general hydrogen storage device is connected to the bracket of the use occasion by bolts, and this installation method makes it cumbersome to disassemble and replace. Utility Model Content

[0004] The purpose of the utility model is to provide a solid-state hydrogen storage device for rapid filling to solve the problems in the above technical background.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A solid-state hydrogen storage device for rapid filling comprises a hydrogen storage tank and an end cover, wherein the end cover is connected to the hydrogen storage tank by bolts, the end cover is provided with a hydrogen inlet and outlet, the hydrogen inlet and outlet are connected to a bottle head valve, the bottle head valve comprises a valve body, an air outlet and a manual knob on the top of the valve body, an integrated heating and heat dissipation module is provided at the bottom of the hydrogen storage tank, a controller is provided on the hydrogen storage tank, the air outlet is connected to a solenoid valve, the solenoid valve is connected to a quick plug connector, and the quick plug connector is connected to a hydrogen inlet of a hydrogen fuel cell through a hydrogen pipeline; a temperature-pressure integrated sensor and a quick connector for filling hydrogen are also provided on the bottle head valve, the quick connector comprises a quick connector male end and a quick connector female end, the quick connector male end is connected to the valve body, the quick connector female end is connected to the hydrogen pipeline, and the quick connector male end is quickly connected to the quick connector female end when filling hydrogen; the temperature-pressure integrated sensor and the integrated heating and heat dissipation module are electrically connected to the controller.

[0007] Furthermore, the integrated heating and cooling module includes aluminum alloy fins and a cooling fan. The aluminum alloy fins are fixed to the bottom of the hydrogen storage tank, and the cooling fan is closely attached to the bottom of the aluminum alloy fins and connected by bolts. A PTC heating element is attached inside the aluminum alloy fins. Both the PTC heating element and the cooling fan are electrically connected to the controller through wires, and the controller automatically adjusts the rotation speed of the cooling fan and the temperature of the PTC heating element.

[0008] When filling hydrogen, the volume inside the hydrogen tank continuously increases, and the temperature rises accordingly, which will slow down the hydrogen filling speed. The cooling fan is used for heat dissipation during hydrogen filling; on the contrary, when releasing hydrogen to the hydrogen fuel cell, the volume inside the hydrogen tank continuously decreases, and the temperature drops accordingly, affecting the reaction rate of the fuel cell. The PTC heating element is used for heating when releasing hydrogen. Combining with the good thermal conductivity of the aluminum alloy fins and silicone grease, the temperature of the hydrogen storage tank can be well controlled near the initially set optimal temperature, greatly improving the efficiency of hydrogen release and filling.

[0009] Furthermore, silicone grease is evenly coated between the top of the aluminum alloy fins and the bottom of the hydrogen storage tank.

[0010] Silicone grease is a paste material with good thermal conductivity. Filling the gap between the hydrogen storage tank and the aluminum alloy fins with silicone grease can reduce the thermal resistance and is beneficial to heat dissipation or heat conduction.

[0011] Furthermore, the hydrogen storage tank adopts a square tank design.

[0012] The square tank design can save installation space and increase applicability. Especially when used in some occasions with limited space, the installation is more convenient, improving the space utilization rate and making the equipment structure more compact.

[0013] Furthermore, the hydrogen storage tank is connected and fixed to the external mounting bracket through a quick-release pin device.

[0014] The conventional method of connecting the hydrogen storage tank with bolts is difficult for installation and disassembly, while the quick-release pin device can quickly install, connect, and disassemble.

[0015] Furthermore, the quick-release pin device includes a hook, a fixed seat, a first pin shaft, an adjusting screw, a pull ring, a second pin shaft, and a handle. Installation holes are respectively provided on the hook and the fixed seat. The hook is connected to the external mounting bracket through the installation hole, and the fixed seat is connected to the hydrogen storage tank through the installation hole. Pin holes are provided on the fixed seat, the handle, and the pull ring. The first pin shaft passes through the pin holes on the fixed seat and the handle to form a first hinge; a circular through hole is provided in the middle of the first pin shaft, and threaded holes are provided in the middle of the second pin shaft. One end of the adjusting screw is fixed in the through hole on the first pin shaft, and the other end is threadedly connected to the threaded hole on the second pin shaft; long circular holes through which the second pin shaft can pass are symmetrically arranged along the length direction on both sides of the handle, and the second pin shaft passes through the pin hole on the pull ring and is connected to the long circular hole.

[0016] Advantages of the present utility model compared with the prior art:

[0017] 1. The present utility model adopts an integrated heating and cooling module, which can, according to the temperature feedback of the temperature and pressure integrated sensor during hydrogen filling and release, use the controller to control the rotation speed of the cooling fan and the temperature of the PTC heating element, so as to keep the temperature of the hydrogen storage tank at the optimal temperature and improve the efficiency of hydrogen filling or release.

[0018] 2. The present utility model uses quick connectors to achieve quick connection and disconnection of the hydrogen pipeline during hydrogen filling and release, which not only simplifies the operation process, but also greatly improves the efficiency of hydrogen filling and release.

[0019] 3. The present utility model abandons the traditional circular cylinder design and adopts a square tank, which significantly improves the space utilization rate of the hydrogen storage device. Especially in applications in limited spaces such as vehicles, ships, and aerospace vehicles, it can arrange the layout more effectively and reduce space waste.

[0020] 4. The present utility model uses a quick pin device to replace the traditional screw fixing method, which can achieve quick installation and disassembly of the hydrogen storage device, improve the maintenance and replacement efficiency, and at the same time enhance the stability of the device to ensure stable operation under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 are the front view and side view of the hydrogen storage device according to the embodiment of the present utility model;

[0022] Figure 2 are the top view and bottom view of the hydrogen storage device according to the embodiment of the present utility model;

[0023] Figure 3 is the three-dimensional structure schematic diagram of the hydrogen storage device according to the embodiment of the present utility model;

[0024] Figure 4 is the three-dimensional structure explosion schematic diagram of the hydrogen storage device according to the embodiment of the present utility model;

[0025] Figure 5 is the three-dimensional structure schematic diagram of the quick pin device in the hydrogen storage device according to the embodiment of the present utility model;

[0026] Figure 6 is the structure explosion schematic diagram of the quick pin device in the hydrogen storage device according to the embodiment of the present utility model;

[0027] Reference numerals: 1, hydrogen storage tank; 2, end cover; 3, bolt; 4, hydrogen inlet and outlet; 5, cylinder valve; 51, valve body; 52, gas outlet; 53, manual knob; 6, integrated heating and cooling module; 61, aluminum alloy fin; 62, cooling fan; 63, silicone grease; 7, controller; 8, solenoid valve; 9, quick connector; 10, temperature and pressure integrated sensor; 11, quick connector; 11-1, male end of the quick connector; 11-2, female end of the quick connector; 12, quick pin device; 12-1, hook; 12-2, fixed seat; 12-3, first pin shaft; 12-4, adjusting screw; 12-5, pull ring; 12-6, second pin shaft; 12-7, handle; 12-8, mounting hole; 12-9, pin hole; 12-10, threaded hole. Detailed implementation

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] As Figures 1-6 shown, a solid hydrogen storage device for rapid filling includes a hydrogen storage tank 1 and an end cover 2. The end cover 2 is connected to the hydrogen storage tank 1 through a bolt 3. The end cover 2 is provided with a hydrogen inlet and outlet 4. A cylinder valve 5 is connected to the hydrogen inlet and outlet 4. The cylinder valve 5 includes a valve body 51, a gas outlet 52, and a manual knob 53 on the top of the valve body 51. An integrated heating and cooling module 6 is provided at the bottom of the hydrogen storage tank 1. A controller 7 is provided on the hydrogen storage tank 1. The gas outlet 52 of the cylinder valve 5 is connected to a solenoid valve 8. A quick connector 9 is connected to the solenoid valve 8. The quick connector 9 is connected to the hydrogen inlet of the hydrogen fuel cell through a hydrogen pipeline; a temperature and pressure integrated sensor 10 and a quick connector 11 for filling hydrogen are also provided on the cylinder valve 5. The quick connector 11 includes a male end 11-1 of the quick connector and a female end 11-2 of the quick connector. The male end 11-1 of the quick connector is connected to the valve body 51, and the female end 11-2 of the quick connector is connected to the hydrogen pipeline. When filling hydrogen, the male end 11-1 of the quick connector is quickly connected to the female end 11-2 of the quick connector; the temperature and pressure integrated sensor 10 and the integrated heating and cooling module 6 are electrically connected to the controller 7.

[0030] In this embodiment, both the male end 11-1 of the quick connector 11 and the female end 11-2 of the quick connector have a self-sealing function. When the male end 11-1 of the quick connector and the female end 11-2 of the quick connector are not connected, they are both in a sealed state. This self-sealing quick connector 11 directly adopts the existing technology and can be purchased directly.

[0031] In this embodiment, the integrated heating and cooling module 6 includes an aluminum alloy fin 61 and a cooling fan 62. The aluminum alloy fin 61 is fixedly connected to the bottom of the hydrogen storage tank 1, and the cooling fan 62 is disposed closely to the bottom of the aluminum alloy fin 61. A PTC heating sheet is attached inside the aluminum alloy fin 61. The PTC heating sheet and the cooling fan 62 are respectively electrically connected to the controller 7, and the controller 7 automatically adjusts the rotation speed of the cooling fan 62 and the temperature of the PTC heating sheet.

[0032] It should be noted that the integrated heating and cooling module 6 can be replaced by other heating and cooling methods. For example, the combination of the aluminum alloy fin 61 and the PTC heating sheet can be directly replaced by an existing PTC heater.

[0033] In this embodiment, silicone grease 63 is evenly coated on the top of the aluminum alloy fin 61.

[0034] In this embodiment, the hydrogen storage tank 1 adopts a square tank design. In addition, other more space-saving structural designs such as an elliptical shape can also be adopted.

[0035] The hydrogen storage tank 1 is fixedly connected to the external mounting frame through a quick latch device 12. The quick latch device 12 can be realized by structures such as a quick hoop, a quick plug, and a quick buckle. In this embodiment, the following buckle structure is adopted:

[0036] The quick latch device 12 includes a hook 12-1, a fixed seat 12-2, a first pin 12-3, an adjusting screw 12-4, a pull ring 12-5, a second pin 12-6, and a handle 12-7. Among them, mounting holes 12-8 are respectively provided on the hook 12-1 and the fixed seat 12-2. The hook 12-1 is fixed to the external mounting frame through the mounting hole 12-8, and the fixed seat 12-2 is fixed to the hydrogen storage tank 1 through the mounting hole 12-8. Pin holes 12-9 are respectively provided on the fixed seat 12-2, the pull ring 12-5, and the handle 12-7. The first pin 12-3 passes through the pin holes 12-9 on the fixed seat 12-2 and the handle 12-7 to form a first hinge; a circular through hole is provided in the middle of the first pin 12-3, and threaded holes are provided in the middle of the second pin 12-6. One end of the adjusting screw 12-4 is fixed in the through hole on the first pin, and the other end is threadedly connected to the threaded hole on the second pin 12-6; long circular holes through which the second pin 12-6 can pass are symmetrically provided along the length direction on both sides of the handle 12-7. The second pin 12-6 passes through the pin hole 12-9 on the pull ring 12-5 and is connected to the long circular hole. The connection body of the second pin 12-6 and the pull ring 12-5 can translate in the long circular hole.

[0037] Instructions for the usage method during hydrogen filling and release:

[0038] The opening and closing of the bottle head valve 5 can be controlled by the manual knob 53 on the bottle head valve 5. When the manual knob 53 is tightened, the bottle head valve 5 closes to ensure that the hydrogen stored in the hydrogen storage tank 1 is not released to the outside. When it is necessary to fill the hydrogen storage tank 1 with hydrogen or the hydrogen storage tank 1 supplies hydrogen to the fuel cell system, just loosen the manual knob 53. The quick connector 9 is connected to the solenoid valve 8, and the other end of the quick connector 9 is connected to the hydrogen inlet of the fuel cell. The solenoid valve 8 is a normally closed solenoid valve.

[0039] When the fuel cell system is working, ensure that the manual knob 53 is in the loosened state. At this time, an opening signal is input to the solenoid valve 8, the solenoid valve 8 opens, the integrated heating and cooling module 6 turns on the heating mode, the PTC heating sheet heats up, and the solid hydrogen storage tank 1 supplies gas to the fuel cell.

[0040] When it is necessary to fill the hydrogen storage device with hydrogen, directly and quickly connect the female end 11-2 of the quick connector on the hydrogen pipeline to the male end 11-1 of the quick connector on the valve body 51 of the bottle head valve 5. After the quick connector is connected, the self-sealing is released and hydrogen filling starts. The cooling fan 62 in the integrated heating and cooling module 6 is turned on, and the temperature and pressure integrated sensor 10 feeds back the temperature to the controller 7 to adjust the rotation speed of the cooling fan 62.

[0041] The above description is only the best embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A solid-state hydrogen storage device for rapid filling, comprising a hydrogen storage tank and an end cap. The end cap is connected to the hydrogen storage tank by bolts. An inlet / outlet hydrogen port is provided on the end cap, and a cylinder valve is connected to the inlet / outlet hydrogen port. The cylinder valve includes a valve body, an air outlet, and a manual knob on the top of the valve body. It is characterized in that: The bottom of the hydrogen storage tank is provided with an integrated heating and cooling module. A controller is provided on the hydrogen storage tank. The gas outlet is connected to a solenoid valve, and a quick connector is connected to the solenoid valve. The quick connector is connected to the hydrogen inlet of the hydrogen fuel cell through a hydrogen pipeline. A temperature and pressure integrated sensor and a quick connector for filling hydrogen are also provided on the bottle valve. The quick connector includes a male end and a female end. The male end of the quick connector is connected to the valve body, and the female end of the quick connector is connected to the hydrogen pipeline. The temperature and pressure integrated sensor and the integrated heating and cooling module are both electrically connected to the controller.

2. The solid-state hydrogen storage device according to claim 1, characterized in that: The integrated heating and cooling module includes aluminum alloy fins and a cooling fan. The aluminum alloy fins are fixed to the bottom of the hydrogen storage tank. The cooling fan is closely attached to the bottom of the aluminum alloy fins and connected by bolts. A PTC heating sheet is attached inside the aluminum alloy fins. The PTC heating sheet and the cooling fan are electrically connected to the controller through wires. The controller automatically adjusts the rotation speed of the cooling fan and the temperature of the PTC heating sheet.

3. The solid hydrogen storage device according to claim 2, wherein: Silicone grease is evenly coated between the top of the aluminum alloy fins and the bottom of the hydrogen storage tank.

4. The solid-state hydrogen storage device according to claim 1, wherein: The hydrogen storage tank is designed as a square tank.

5. The solid hydrogen storage device according to claim 1, characterized in that: The hydrogen storage tank is connected and fixed to the external mounting bracket through a quick detent device.

6. The solid-state hydrogen storage device according to claim 5, characterized in that: The quick detent device includes a hook, a fixed seat, a first pin shaft, an adjusting screw, a pull ring, a second pin shaft and a handle. Mounting holes are respectively provided on the hook and the fixed seat. The hook is connected to the external mounting bracket through the mounting hole, and the fixed seat is connected to the hydrogen storage tank through the mounting hole. Pin holes are provided on the fixed seat, the handle and the pull ring. The first pin shaft passes through the pin holes on the fixed seat and the handle to form a first hinge. A circular through hole is provided in the middle of the first pin shaft, and a threaded hole is provided in the middle of the second pin shaft. One end of the adjusting screw is fixed in the through hole on the first pin shaft, and the other end is threadedly connected to the threaded hole on the second pin shaft. Long circular holes through which the second pin shaft can pass are symmetrically arranged along the length direction on both sides of the handle. The second pin shaft passes through the pin hole on the pull ring and is connected to the long circular hole.

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