Solid-state hydrogen storage and hydrogen charging device

Abstract

The utility model discloses a solid -state hydrogen storage fills hydrogen device relates to hydrogen storage equipment technical field, including air inlet filter, hydrogen gas mixer, heat abstractor subassembly, solid -state hydrogen storage container group, hydrogen circulation pump, the air inlet end of air inlet filter is open with gas source, and the air outlet end is open with the first air inlet end of hydrogen gas mixer, and the air inlet end of heat abstractor subassembly is open with the air outlet end of hydrogen gas mixer, and the air outlet end is through four -way valve respectively with solid -state hydrogen storage container group and hydrogen circulation pump's air inlet end intercommunication, and the air outlet end of hydrogen circulation pump is open with the second air inlet end of hydrogen gas mixer. The device passes through heat abstractor subassembly, realizes hydrogen gas temperature quick reduction, and the design of hydrogen storage container is simplified, and the inside of hydrogen storage container does not need to design complicated heat exchange pipe, can increase the filling amount of hydrogen storage material of hydrogen storage container, thereby increasing the hydrogen storage capacity of container, and simultaneously need not design water bath system, avoids the possibility of hydrogen storage material and water contact, avoids material and water reaction failure, and increases the security of system.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen storage equipment technology, and in particular to a solid hydrogen storage and charging device. Background Technology

[0002] Low-temperature solid-state hydrogen storage materials generate heat during hydrogen filling. Therefore, cooling of the container is necessary during hydrogen storage to remove this heat and maintain a suitable low temperature throughout the storage system. A common cooling method involves using a water bath for heat exchange, transferring the heat generated during storage and ensuring the system remains at a low, suitable temperature. However, this method requires a complex filling system and, more importantly, prolonged use of a water bath can lead to water ingress into the container, potentially reacting with the hydrogen storage material and releasing hydrogen, posing a significant safety risk. Another common cooling method is to incorporate a heat exchange structure within the storage container, using circulating water for heat exchange. However, this design reduces the effective space inside the container, decreasing hydrogen storage efficiency. Utility Model Content

[0003] In view of this, in order to solve the above-mentioned problems of water ingress or low storage efficiency, the present invention provides a solid hydrogen storage and charging device.

[0004] An embodiment of this utility model provides a solid hydrogen storage and charging device, including: an air inlet filter, a hydrogen mixer, a heat dissipation assembly, a solid hydrogen storage container group, and a hydrogen circulation pump; The air intake end of the air intake filter is connected to the air source, and the air outlet end is connected to the first air intake end of the hydrogen mixer. The air intake end of the heat dissipation component is connected to the air outlet end of the hydrogen mixer, and the air outlet end is connected to the air intake end of the solid hydrogen storage container group and the hydrogen circulation pump respectively through a four-way valve. The air outlet end of the hydrogen circulation pump is connected to the second air intake end of the hydrogen mixer.

[0005] Furthermore, a switching valve and a mass flow meter are sequentially connected between the air intake filter and the hydrogen mixer along the gas flow direction.

[0006] Furthermore, a pressure transmitter is connected to the outlet end of the hydrogen mixer, and the pressure transmitter is connected to the inlet end of the heat dissipation assembly.

[0007] Furthermore, a temperature transmitter is provided between the air outlet of the heat dissipation component and the four-way valve.

[0008] Furthermore, the heat dissipation assembly includes a heat exchanger and a chiller unit, wherein the air inlet of the heat exchanger is connected to the air outlet of the pressure transmitter and the air outlet is connected to the air inlet of the temperature transmitter, and the liquid outlet of the chiller unit is connected to the liquid inlet of the heat exchanger and the liquid inlet is connected to the liquid outlet of the heat exchanger, so as to form a coolant circulation.

[0009] Furthermore, the outlet of the temperature transmitter is connected to the first port of the four-way valve, the second port of the four-way valve is connected to the inlet of the solid hydrogen storage container group, the third port is connected to the outlet of the solid hydrogen storage container group, and the fourth port is connected to the inlet of the hydrogen circulation pump.

[0010] Furthermore, a filter is provided between the inlet end of the hydrogen circulation pump and the fourth port of the four-way valve.

[0011] Furthermore, the solid hydrogen storage container group is composed of several solid hydrogen storage tanks connected in parallel, and the gas inlet of each solid hydrogen storage tank is connected to the second port of the four-way valve, and the gas outlet is connected to the third port of the four-way valve.

[0012] Furthermore, it also includes a controller, which is connected to the switching valve, mass flow meter, pressure transmitter, temperature transmitter, and hydrogen circulation pump respectively.

[0013] Furthermore, the switching valve is an electromagnetic switching valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention discloses a solid-state hydrogen storage and charging device. First, by using hydrogen circulation cooling, a combination of an external heat exchanger and a chiller unit, the hydrogen temperature is rapidly reduced, simplifying the design of the hydrogen storage container. The container no longer requires complex heat exchange tubes, allowing for increased filling of the hydrogen storage material and thus increasing the container's hydrogen storage capacity. Second, the elimination of a water bath system avoids the possibility of contact between the hydrogen storage material and water, preventing material reaction and failure, and increasing system safety. Finally, closed-loop control of the circulation pump and coolant flow rate achieves temperature-pressure-flow self-matching during the hydrogen charging and discharging process, further enhancing system safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1A schematic diagram of an embodiment of the solid-state hydrogen storage and charging device provided by this utility model.

[0017] Explanation of icon numbers: 1-Inlet filter, 2-Switch valve, 3-Mass flow meter, 4-Hydrogen mixer, 5-Pressure transmitter, 6-Heat exchanger, 7-Chiller, 8-Temperature transmitter, 9-Solid hydrogen storage container group, 10-Filter, 11-Hydrogen circulation pump, 12-Four-way valve, 13-Controller. Detailed Implementation

[0018] 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.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] Please refer to Figure 1 As shown, an embodiment of this utility model provides a solid hydrogen storage and charging device, including an air inlet filter 1, a hydrogen mixer 4, a heat dissipation assembly, a solid hydrogen storage container group 9, and a hydrogen circulation pump 11.

[0022] In this embodiment, the inlet end of the air intake filter 1 is connected to the hydrogen source. This allows the hydrogen source to be introduced into the subsequent storage system through the air intake filter 1 when hydrogen storage is required, and filters the hydrogen source to ensure that the hydrogen entering the subsequent storage system is clean. At the same time, the outlet end of the air intake filter 1 is connected to a switch valve 2. Preferably, the switch valve 2 is an electromagnetic switch valve. The main function of the switch valve 2 is to control the flow of hydrogen into the subsequent storage system according to the actual working conditions.

[0023] A mass flow meter 3 is connected to the outlet of the switching valve 2. The inlet of the mass flow meter 3 is connected to the outlet of the switching valve 2, and the outlet is connected to the hydrogen mixer 4. Furthermore, the hydrogen mixer 4 includes two inlets and one outlet. The outlet of the mass flow meter 3 is connected to the first inlet of the hydrogen mixer 4. A pressure transmitter 5 is connected to the outlet of the hydrogen mixer 4. The inlet of the pressure transmitter 5 is connected to the outlet of the hydrogen mixer 4, and the outlet is connected to the heat dissipation component. In this way, the pressure of hydrogen in the entire system can be monitored in real time through the pressure transmitter 5.

[0024] In this embodiment, the heat dissipation assembly includes a heat exchanger 6 and a chiller unit 7. The air inlet of the heat exchanger 6 is connected to the air outlet of the pressure transmitter 5, and the air outlet is connected to the solid hydrogen storage container group 9 through a four-way valve 12. The liquid outlet of the chiller unit 7 is connected to the liquid inlet of the heat exchanger 6, and the liquid inlet is connected to the liquid outlet of the heat exchanger 6. This promotes the circulation of coolant in the heat exchanger 6, thereby ensuring that the heat exchanger 6 always has good heat exchange and cooling function. At the same time, the coolant in the chiller unit 7 can be replaced according to the actual working conditions to achieve different levels of cooling requirements.

[0025] A temperature transmitter 8 is connected to the outlet of the heat exchanger 6, and the heat exchanger 6 is connected to a four-way valve 12 through the temperature transmitter 8. In this embodiment, the four ports of the four-way valve 12 are the first port, the second port, the third port, and the fourth port. The outlet of the temperature transmitter 8 is connected to the first port of the four-way valve 12, the second port of the four-way valve 12 is connected to the inlet of the solid hydrogen storage container group 9, the third port is connected to the outlet of the solid hydrogen storage container group 9, and the fourth port is connected to the inlet of the hydrogen circulation pump 11. It should be noted that the main function of the temperature transmitter 8 is to detect whether the temperature of the hydrogen coming out of the heat exchanger 6 meets the standard.

[0026] Meanwhile, in this embodiment, the solid hydrogen storage container group 9 is composed of several solid hydrogen storage tanks connected in parallel. The inlet end of each solid hydrogen storage tank is connected to the second port of the four-way valve 12, and the outlet end is connected to the third port of the four-way valve 12. It should be noted that the solid hydrogen storage container group 9 has a hydrogen solidification function. In this embodiment, this hydrogen solidification technology is an existing technology, so it will not be described in detail. It should also be noted that the inlet and outlet ends of the solid hydrogen storage container group 9 can be adjusted according to the actual working conditions. The end of the solid hydrogen storage container group 9 connected to the second port of the four-way valve 12 can be either the inlet end or the outlet end. It can be adjusted according to actual needs and is not limited by this embodiment.

[0027] Furthermore, the fourth port of the four-way valve 12 is connected to a filter 10. The inlet of the filter 10 is connected to the fourth port of the four-way valve 12, and the outlet is connected to the inlet of the hydrogen circulation pump 11. The outlet of the hydrogen circulation pump 11 is connected to the second inlet of the hydrogen mixer 4. This allows hydrogen that has not been solidified by the solid hydrogen storage container group 9 to re-enter the subsequent circulation.

[0028] The solid hydrogen storage and charging device in this embodiment also includes a controller 13, which is connected to the switching valve 2, mass flow meter 3, pressure transmitter 5, temperature transmitter 8 and hydrogen circulation pump 11 respectively. In this way, the closing operation of each component can be controlled according to the actual working conditions, thereby achieving different working conditions.

[0029] The working mode of a solid hydrogen storage and charging device in this embodiment is as follows: When hydrogen needs to be solidified and stored, the controller 13 controls the operation of various components. Hydrogen enters the system after being filtered by the inlet filter 1, and then undergoes heat exchange through the heat dissipation component to ensure that the temperature of the hydrogen in the system is low and meets the operating requirements. Afterward, the hydrogen is solidified and stored by the solid hydrogen storage container group 9. Hydrogen that is not stored by the solid hydrogen storage container group 9 can be pumped by the hydrogen circulation pump 11 into the hydrogen mixer 4 to mix with the hydrogen from the inlet filter 1 and re-enter the subsequent storage cycle.

[0030] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A solid-state hydrogen storage and charging device, characterized in that, include: The air intake filter (1), hydrogen mixer (4), heat dissipation assembly, solid hydrogen storage container assembly (9), and hydrogen circulation pump (11). The air inlet of the air filter (1) is connected to the air source and the air outlet is connected to the first air inlet of the hydrogen mixer (4). The air inlet of the heat dissipation component is connected to the air outlet of the hydrogen mixer (4). The air outlet is connected to the air inlet of the solid hydrogen storage container group (9) and the hydrogen circulation pump (11) respectively through the four-way valve (12). The air outlet of the hydrogen circulation pump (11) is connected to the second air inlet of the hydrogen mixer (4).

2. The solid-state hydrogen storage and charging device as described in claim 1, characterized in that: A switching valve (2) and a mass flow meter (3) are sequentially connected between the air intake filter (1) and the hydrogen mixer (4) along the gas flow direction.

3. The solid-state hydrogen storage and charging device as described in claim 2, characterized in that: The outlet of the hydrogen mixer (4) is connected to a pressure transmitter (5), and the pressure transmitter (5) is connected to the inlet of the heat dissipation assembly.

4. The solid-state hydrogen storage and charging device as described in claim 3, characterized in that: A temperature transmitter (8) is provided between the air outlet of the heat dissipation component and the four-way valve (12).

5. The solid-state hydrogen storage and charging device as described in claim 4, characterized in that: The heat dissipation assembly includes a heat exchanger (6) and a chiller (7), wherein the air inlet of the heat exchanger (6) is connected to the air outlet of the pressure transmitter (5) and the air outlet is connected to the air inlet of the temperature transmitter (8), and the liquid outlet of the chiller (7) is connected to the liquid inlet of the heat exchanger (6) and the liquid inlet is connected to the liquid outlet of the heat exchanger (6) to form a coolant circulation.

6. The solid-state hydrogen storage and charging device as described in claim 5, characterized in that: The outlet of the temperature transmitter (8) is connected to the first port of the four-way valve (12), the second port of the four-way valve (12) is connected to the inlet of the solid hydrogen storage container group (9), the third port is connected to the outlet of the solid hydrogen storage container group (9), and the fourth port is connected to the inlet of the hydrogen circulation pump (11).

7. The solid-state hydrogen storage and charging device as described in claim 6, characterized in that: A filter (10) is provided between the inlet end of the hydrogen circulation pump (11) and the fourth port of the four-way valve (12).

8. The solid-state hydrogen storage and charging device as described in claim 6, characterized in that: The solid hydrogen storage container group (9) is composed of several solid hydrogen storage tanks connected in parallel. The gas inlet of each solid hydrogen storage tank is connected to the second port of the four-way valve (12), and the gas outlet is connected to the third port of the four-way valve (12).

9. The solid-state hydrogen storage and charging device as described in claim 8, characterized in that: It also includes a controller (13), which is connected to the switching valve (2), mass flow meter (3), pressure transmitter (5), temperature transmitter (8), and hydrogen circulation pump (11) respectively.

10. The solid-state hydrogen storage and charging device as described in claim 2, characterized in that: The switching valve (2) is an electromagnetic switching valve.

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