Storage cabinet for replacing gaseous hydrogen storage bottles of hydrogen energy

Abstract

The utility model provides a storage cabinet for hydrogen energy gaseous hydrogen storage bottle replacement, which relates to the technical field of hydrogen energy, and comprises a cabinet door, a connecting frame and compartments, the front surface of the cabinet door is fixedly connected with a handle, and the cabinet door is rotatably connected to the front surface of the connecting frame through a hinge; an outer layer steel plate, a cement plate and an inner layer steel plate are fixedly connected to the back face of the connecting frame, the cement plate is fixedly connected to the inner side wall of the outer layer steel plate, the inner layer steel plate is fixedly connected to the inner side wall of the cement plate, and the compartments are fixedly connected to the inner side wall of the inner layer steel plate at equal intervals. When the hydrogen storage bottle leaks, the reset spring pushes the lower pressing plate and the sliding rod to move upwards, the leakage state is monitored in real time through the prompt scales, when hydrogen leaks to the dangerous degree, the exhaust fan is started to exhaust hydrogen, accumulation and explosion risks are reduced, the outer-layer steel plate and the inner-layer steel plate form a composite structure, and the cement plate is clamped, so that the safety of the hydrogen storage bottle is improved. And the explosion-proof performance of the storage cabinet is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen energy technology, and in particular to a storage cabinet for changing hydrogen gaseous storage cylinders. Background Technology

[0002] Hydrogen energy, as a clean and efficient energy source, is widely used in fuel cells, electric vehicles, and industrial fields. With its excellent energy density and low environmental pollution, hydrogen has become an important component of future energy. In order to store hydrogen safely and efficiently, hydrogen energy storage cylinders should have high strength, corrosion resistance, and good sealing performance. With the rapid development of hydrogen energy, the safe storage and management of hydrogen storage cylinders are particularly important.

[0003] In existing technologies, such as the "Hydrogen Cylinder Storage Cabinet" in Chinese Patent CN211118757U, this utility model includes a cabinet with a closed inner cavity. The bottom of the cabinet has an air inlet, and the top has an air outlet connected to a ventilation duct. An exhaust fan is installed in the ventilation duct. When hydrogen leaks inside the cabinet, activating the exhaust fan quickly removes the leaked hydrogen. This hydrogen cylinder storage cabinet has advantages such as good safety, simple and compact structure, and ease of manufacture.

[0004] However, in existing technologies, hydrogen storage tank cabinets lack a structure that allows direct observation of hydrogen leaks from the outside of the cabinet. This makes it difficult for operators to detect and handle potential hazards in a timely manner, causing hydrogen leaks to continue to spread unnoticed, increasing safety risks. Secondly, hydrogen storage tank cabinets lack a composite structure to cope with hydrogen explosions. In high-temperature environments, the gas inside the hydrogen storage tank is prone to expansion or leakage due to temperature rise. When the leaked hydrogen accumulates to a certain concentration inside the cabinet and is not discharged or effectively handled in a timely manner, it is highly likely to explode, causing serious property damage and casualties. Utility Model Content

[0005] The purpose of this invention is to address the problem that existing hydrogen storage tank cabinets lack an external visual hydrogen leak monitoring structure, making it difficult for operators to detect and handle leaks in a timely manner, increasing safety hazards. In addition, the cabinet lacks an effective composite structure to cope with hydrogen explosions, especially in high-temperature environments, where leaked hydrogen can easily accumulate inside the cabinet. If it is not discharged or handled in time, it may cause an explosion, resulting in serious losses and injuries. Therefore, this invention proposes a storage cabinet for changing hydrogen gaseous storage tanks.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a storage cabinet for changing hydrogen gaseous storage cylinders, comprising a cabinet door, a connecting frame, and compartments. A handle is fixedly connected to the front of the cabinet door, and the cabinet door is rotatably connected to the front of the connecting frame via a hinge. An outer steel plate, a cement board, and an inner steel plate are fixedly connected to the back of the connecting frame. The cement board is fixedly connected to the inner wall of the outer steel plate, and the inner steel plate is fixedly connected to the inner wall of the cement board. The compartments are fixedly connected at equal intervals to the inner wall of the inner steel plate.

[0007] In a preferred embodiment, connecting ribs are fixedly connected at equal intervals on the inner sidewall of the outer steel plate, the connecting ribs are fixedly connected inside the cement board, and the connecting ribs are fixedly connected to the outer sidewall of the inner steel plate.

[0008] The technical effect of adopting the above-mentioned further solution is that the outer steel plate and the inner steel plate are connected by connecting ribs, with a cement board sandwiched in the middle to form a composite structure, which effectively enhances the overall strength of the storage cabinet and improves the cabinet's pressure resistance and explosion-proof capability.

[0009] In a preferred embodiment, ventilation openings are provided on both sides of the outer steel plate and cement board, and an exhaust port is provided on the top of the outer steel plate and cement board, with the ventilation openings and exhaust port penetrating through the outer steel plate and cement board.

[0010] The technical effect of adopting the above-mentioned further solution is that the design of the ventilation and exhaust ports effectively improves the air flow inside the storage cabinet and prevents hydrogen from accumulating to a dangerous concentration inside the storage cabinet.

[0011] In a preferred embodiment, an exhaust fan is rotatably connected inside the exhaust port, and a marking is drawn on the side of the outer steel plate away from the connecting frame, the marking being located near the bottom of the outer steel plate.

[0012] The technical effect of adopting the above-mentioned further solution is that, through the exhaust fan design inside the exhaust port, hydrogen can be actively discharged from the cabinet, further reducing the concentration of leaked hydrogen in the cabinet, thereby improving the safety of the storage cabinet.

[0013] In a preferred embodiment, a partition is fixedly connected to the outer wall of the compartment, the partition is fixedly connected to the inner wall of the inner steel plate, and a base is fixedly connected to the inner wall of the compartment. The base is located near the bottom of the compartment, and a pressure plate is slidably connected inside the base.

[0014] The technical effect of adopting the above-mentioned further solution is that, through the design of the partition, collisions between hydrogen storage cylinders in the compartment are avoided, ensuring the stability of the hydrogen storage cylinders during storage, thereby reducing the probability of hydrogen leakage.

[0015] In a preferred embodiment, a limiting rod is fixedly connected to one side of the lower pressure plate. The limiting rod is symmetrically installed at the bottom of the lower pressure plate and slidably connected to the inside of the base. A return spring is sleeved on the outer wall of the limiting rod. One end of the return spring is fixedly connected to the bottom of the lower pressure plate, and the other end of the return spring is fixedly connected to the inside of the base.

[0016] The technical effect of adopting the above-mentioned further solution is that by sleeved with a reset spring on the outside of the limit rod, the lower pressure plate is prevented from shaking during use, which could cause the hydrogen storage cylinder to move and tip over.

[0017] In a preferred embodiment, a sliding rod is fixedly connected to the outer side wall of the lower pressure plate. The sliding rod is located away from the connecting frame and slides through the outer side wall of the outer steel plate.

[0018] The technical advantage of adopting the above-mentioned further solution is that, through the design of the sliding rod, the degree of hydrogen leakage in the hydrogen storage tank can be visualized, and the operator can directly observe the leakage situation from outside the storage cabinet.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] 1. When the storage cabinet needs to store hydrogen storage cylinders, hold the handle and pull open the cabinet door. Then, place the hydrogen storage cylinder on top of the lower pressure plate. The weight of the hydrogen storage cylinder will cause the lower pressure plate to move downwards, sliding into the base to complete the storage of the hydrogen storage cylinder. The compartments separate each hydrogen storage cylinder independently, avoiding the cylinders from being stacked and messy. The partitions effectively prevent the hydrogen storage cylinders from colliding during storage, achieving safe storage and convenient access for the hydrogen storage cylinders.

[0021] 2. When hydrogen leaks from the storage cylinder due to rising temperature during storage, the weight of the cylinder decreases. The return spring pushes the lower pressure plate upward, which in turn moves the sliding rod upward. Operators can monitor the leakage status of the storage cylinder at any time through the indicator scale. If the hydrogen leakage reaches a dangerous level, the exhaust fan is activated to expel the rising hydrogen from the exhaust port, reducing hydrogen accumulation and preventing explosion. At the same time, the ventilation opening enhances airflow inside the inner steel plate, further reducing hydrogen accumulation and improving the safety of the storage cabinet. This achieves real-time monitoring and effective discharge of hydrogen leaks, further enhancing the safety of the cabinet. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall front structure of a hydrogen energy gaseous storage cylinder replacement cabinet proposed in this utility model.

[0023] Figure 2This is a schematic diagram of the overall back structure of a hydrogen energy gaseous storage cylinder replacement cabinet proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the overall internal structure of a hydrogen energy gaseous storage cylinder replacement cabinet proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the outer steel plate structure of a hydrogen energy gaseous storage cylinder replacement cabinet proposed in this utility model.

[0026] Figure 5 This is a schematic diagram of the compartment structure of a hydrogen energy gaseous storage cylinder replacement cabinet proposed in this utility model.

[0027] Figure 6 This is a schematic diagram of the internal structure of a compartment in a hydrogen energy gaseous storage tank replacement cabinet proposed in this utility model.

[0028] Legend:

[0029] 1. Cabinet door; 2. Handle; 3. Connecting frame; 4. Outer steel plate; 401. Connecting rib; 402. Ventilation opening; 403. Exhaust outlet; 404. Exhaust fan; 405. Indicator scale; 5. Cement board; 6. Inner steel plate; 7. Compartment; 701. Partition; 702. Base; 703. Lower pressure plate; 704. Return spring; 705. Limiting rod; 706. Sliding rod. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-6 This utility model provides a technical solution: a storage cabinet for changing hydrogen gaseous storage cylinders, including a cabinet door 1, a connecting frame 3, and compartments 7. A handle 2 is fixedly connected to the front of the cabinet door 1. The cabinet door 1 is rotatably connected to the front of the connecting frame 3 via a hinge. An outer steel plate 4, a cement board 5, and an inner steel plate 6 are fixedly connected to the back of the connecting frame 3. The cement board 5 is fixedly connected to the inner side wall of the outer steel plate 4, and the inner steel plate 6 is fixedly connected to the inner side wall of the cement board 5. The compartments 7 are fixedly connected to the inner side wall of the inner steel plate 6 at equal intervals.

[0032] like Figures 1-6As shown, connecting ribs 401 are fixedly connected at equal intervals on the inner side wall of the outer steel plate 4. The connecting ribs 401 are fixedly connected to the inside of the cement board 5 and to the outer side wall of the inner steel plate 6.

[0033] like Figures 1-6 As shown, ventilation openings 402 are provided on both sides of the outer steel plate 4 and cement board 5, and exhaust openings 403 are provided on the top of the outer steel plate 4 and cement board 5. The ventilation openings 402 and exhaust openings 403 penetrate the outer steel plate 4 and cement board 5.

[0034] like Figures 1-6 As shown, an exhaust fan 404 is rotatably connected inside the exhaust port 403. A prompt scale 405 is drawn on the side of the outer steel plate 4 away from the connecting frame 3. The prompt scale 405 is located near the bottom of the outer steel plate 4.

[0035] like Figures 1-6 As shown, a partition 701 is fixedly connected to the outer wall of the compartment 7. The partition 701 is fixedly connected to the inner wall of the inner steel plate 6. A base 702 is fixedly connected to the inner wall of the compartment 7. The base 702 is located near the bottom of the compartment 7. A lower pressure plate 703 is slidably connected inside the base 702.

[0036] like Figures 1-6 As shown, a limiting rod 705 is fixedly connected to one side of the lower pressure plate 703. The limiting rod 705 is symmetrically installed at the bottom of the lower pressure plate 703. The limiting rod 705 is slidably connected to the inside of the base 702. A return spring 704 is sleeved on the outer wall of the limiting rod 705. One end of the return spring 704 is fixedly connected to the bottom of the lower pressure plate 703, and the other end of the return spring 704 is fixedly connected to the inside of the base 702.

[0037] like Figures 1-6 As shown, a sliding rod 706 is fixedly connected to the outer wall of the lower pressure plate 703. The sliding rod 706 is located away from the connecting frame 3 and slides through to the outer wall of the outer steel plate 4.

[0038] The usage and working principle of this device are as follows: When the storage cabinet needs to store hydrogen storage cylinders, first, grasp handle 2 and pull open the cabinet door 1 with external force. Then, place the hydrogen storage cylinder on top of the lower pressure plate 703. The weight of the hydrogen storage cylinder will cause the lower pressure plate 703 to move downward, driving the lower pressure plate 703 and the limiting rod 705 to slide into the base 702, thereby storing the hydrogen storage cylinder inside the base 702. The compartment 7 separates each hydrogen storage cylinder independently, avoiding the cylinders from being stacked messily and facilitating storage and retrieval. The partition 701 effectively prevents the hydrogen storage cylinders from colliding during storage. When hydrogen leakage occurs in the hydrogen storage cylinder due to the increase in temperature during storage, the weight of the hydrogen storage cylinder is reduced due to the hydrogen leakage. Under the elastic force of the return spring 704, the lower pressure plate 703 is pushed upward. The limiting rod 705 prevents the lower pressure plate 703 and the return spring 704 from shaking. The lower pressure plate 703 drives the sliding rod 70 6. Moving upwards together, since the range of movement of sliding rod 706 is small, it will not affect the overall explosion-proof performance of the storage cabinet. Through the indicator scale 405, the operator can monitor the leakage of hydrogen storage cylinder at any time. If the hydrogen storage cylinder leaks to a dangerous level, the exhaust fan 404 in the exhaust port 403 can be started by connecting an external power source. Since hydrogen is lighter than air, it tends to accumulate at higher levels inside the cabinet. The exhaust fan 404 can expel the rising hydrogen, thereby reducing hydrogen accumulation and preventing explosion. At the same time, the ventilation port 402 enhances the airflow inside the inner steel plate 6, further reducing hydrogen accumulation and improving the safety of the storage cabinet. The outer steel plate 4 and the inner steel plate 6 form a composite structure and are connected by connecting ribs 401 to enhance the explosion-proof performance. A cement board 5 is sandwiched between the outer steel plate 4 and the inner steel plate 6 to further improve the explosion-proof effect. The exhaust fan 404 is an existing technology on the market and will not be described in detail here.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A storage cabinet for changing bottles of gaseous hydrogen storage cylinders for hydrogen energy, characterized in that: Including cabinet door (1), connecting frame (3) and compartment (7), the front of the cabinet door (1) is fixedly connected with handle (2), the cabinet door (1) is rotatably connected on the front of the connecting frame (3) by hinge, the back of the connecting frame (3) is fixedly connected with outer steel sheet (4), cement board (5), inner steel sheet (6), the cement board (5) is fixedly connected on the inner side wall of the outer steel sheet (4), the inner steel sheet (6) is fixedly connected on the inner side wall of the cement board (5), the compartment (7) is fixedly connected on the inner side wall of the inner steel sheet (6) at equal distance.

2. The gaseous hydrogen storage cylinder exchange storage cabinet for hydrogen energy according to claim 1, characterized in that: The inner side wall of the outer steel sheet (4) is fixedly connected with connecting rib (401) at equal distance, the connecting rib (401) is fixedly connected in the cement board (5), the connecting rib (401) is fixedly connected on the outer side wall of the inner steel sheet (6).

3. The gaseous hydrogen storage cylinder exchange storage cabinet for hydrogen energy according to claim 1, characterized in that: The both sides of the outer steel sheet (4) and the cement board (5) are provided with ventilation opening (402), the top of the outer steel sheet (4) and the cement board (5) is provided with exhaust port (403), the ventilation opening (402) and the exhaust port (403) penetrate the outer steel sheet (4) and the cement board (5).

4. The gaseous hydrogen storage cylinder exchange storage cabinet for hydrogen energy according to claim 3, characterized in that: The inside of the exhaust port (403) is rotatably connected with exhaust fan (404), the side of the outer steel sheet (4) away from the connecting frame (3) is drawn with prompt scale (405), the prompt scale (405) is located at the position close to the bottom of the outer steel sheet (4).

5. The gaseous hydrogen storage cylinder bottle exchange storage cabinet for hydrogen energy source as claimed in claim 1, wherein: The outer side wall of the compartment (7) is fixedly connected with partition (701), the partition (701) is fixedly connected on the inner side wall of the inner steel sheet (6), the inner side wall of the compartment (7) is fixedly connected with base (702), the base (702) is located at the position close to the bottom of the compartment (7), the inside of the base (702) is slidably connected with down plate (703).

6. The gaseous hydrogen storage cylinder bottle exchange storage cabinet for hydrogen energy according to claim 5, characterized in that: The side of the down plate (703) is fixedly connected with limit rod (705), the limit rod (705) is symmetrically installed on the bottom of the down plate (703), the limit rod (705) is slidably connected in the inside of the base (702), the outer side wall of the limit rod (705) is sleeved with reset spring (704), one end of the reset spring (704) is fixedly connected on the bottom of the down plate (703), the other end of the reset spring (704) is fixedly connected in the inside of the base (702).

7. The gaseous hydrogen storage cylinder bottle exchange storage cabinet for hydrogen energy according to claim 5, characterized in that: The outer side wall of the down plate (703) is fixedly connected with sliding rod (706), the sliding rod (706) is located at the position away from the connecting frame (3), the sliding rod (706) is slidably penetrated to the outer side wall of the outer steel sheet (4).

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