A hydrogen storage device for gas production

Abstract

The utility model discloses a kind of hydrogen storage devices for gas making, it is related to hydrogen storage equipment field, comprising: water tank base, water tank base one end is fixedly connected with bottom tank cylinder, expansion ring is sleeved in bottom tank cylinder inside, expansion ring one end is fixedly connected with pressure pipe, pressure pipe is through bottom tank cylinder and water tank base and is fixedly connected with water pump, and expansion ring outside is equipped with rubber pressure cylinder, rubber pressure cylinder outside is fixedly connected with outer tank cylinder, and rubber pressure cylinder one side is fixedly connected with inlet and outlet connecting pipe and pressure gauge.The hydrogen storage device for gas making, by the cooperation of rubber pressure cylinder and expansion ring, can more effectively adapt to pressure change.Rubber pressure cylinder expands under the action of pressure, and the pressure is dispersed to the whole device structure, instead of concentrating on certain elastic element.At the same time, the deformation of expansion ring can also absorb a part of pressure, and through the linkage of pressure pipe and water pump, timely and effective pressure relief operation can be carried out, greatly improve the pressure relief effect and safety of device.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen storage equipment technology, specifically a hydrogen storage device for gas production. Background Technology

[0002] With the continuous growth of energy demand and the pursuit of clean energy, hydrogen, as an efficient and clean energy carrier, is receiving increasing attention. In the hydrogen production process, how to safely and efficiently store hydrogen has become a key issue. Currently, common hydrogen storage methods include high-pressure gaseous hydrogen storage, cryogenic liquid hydrogen storage, and solid-state hydrogen storage. However, existing hydrogen storage devices still have some shortcomings in practical applications. For example, high-pressure gaseous hydrogen storage requires withstanding high pressure, placing extremely high demands on the pressure resistance of the device and posing certain safety risks; cryogenic liquid hydrogen storage requires cooling hydrogen to extremely low temperatures, resulting in high energy consumption and complex equipment; while solid-state hydrogen storage has a high hydrogen storage density, improper handling of volume changes and heat exchange during hydrogen charging and discharging can affect the performance and lifespan of the hydrogen storage device. Furthermore, existing hydrogen storage devices may have inadequate structural design, leading to low space utilization. Therefore, developing a hydrogen storage device for gas production that can effectively solve the above problems is of significant practical importance.

[0003] The prior art publication CN115325425B discloses a photovoltaic power generation direct-coupled hydrogen production and gas storage device. This device features an adjustable disc assembly inside the tank. After storage, gas is discharged through the upward adjustment of the disc assembly, facilitating efficient discharge and reducing residual gas in the tank, resulting in high utilization. The disc assembly includes a movable disc structure that can move up and down, as well as a first and second cylinder. A helical spring at the bottom of the movable disc provides resistance. During gas storage, the up-and-down movement of the movable disc and the elastic resistance provided by the helical spring allow for adjustments to the internal gas pressure caused by external temperature changes. This allows for adjustments to the internal storage space; when the pressure rises, the storage space increases to reduce pressure, and when the pressure decreases, the storage space decreases, causing the movable disc to return to its original position. This adaptability to different temperature requirements prevents excessive internal pressure caused by high temperatures, which could negatively impact storage efficiency and cause excessive pressure on the entire device. This pressure relief design ensures optimal performance.

[0004] Although the existing technical solutions described above can achieve the relevant beneficial effects through the existing technical structure, they still have the following defects: the bottom cover is fixed to the mounting base, and the mounting base and the disc assembly are elastically supported by a helical spring. When the disc assembly is subjected to the hydrogen pressure inside the tank, the disc assembly subjected to the pressure will inevitably squeeze the helical spring to contract in order to maintain the pressure balance inside the tank. As a result, it is impossible to ensure that the helical spring can play a good pressure relief role for the tank.

[0005] Therefore, a hydrogen storage device for gas production is provided. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a hydrogen storage device for gas production to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hydrogen storage device for gas production, comprising a water tank base, a bottom tank cylinder fixedly connected to one end of the water tank base, an expansion ring sleeved inside the bottom tank cylinder, a pressure pipe fixedly connected to one end of the expansion ring, the pressure pipe passing through the bottom tank cylinder and the water tank base and fixedly connected to a water pump, and a rubber pressure cylinder provided outside the expansion ring, an outer tank cylinder fixedly connected to the outside of the rubber pressure cylinder, the outer tank cylinder being threadedly connected to the bottom tank cylinder, and an inlet and outlet connecting pipe and a pressure gauge fixedly connected to one side of the rubber pressure cylinder.

[0008] Preferably, one side of the water tank base has a ring-shaped, equally spaced structure with multiple lifting angle seats fixedly connected to it, and one side of each lifting angle seat is threaded with an adjusting stud.

[0009] Preferably, an outer inclined groove is provided on one side of the bottom tank cylinder, and a sealing ring is fitted around the outside of the outer inclined groove.

[0010] Preferably, an annular groove is provided on one side of the bottom tank cylinder.

[0011] Preferably, one end of the outer can cylinder has an inner inclined groove that can fit with the bottom can cylinder.

[0012] Preferably, the outer can cylinder has multiple threaded holes in an annular, equally spaced structure on its exterior. A limiting screw is threaded into each threaded hole, and one end of the limiting screw has a frustum-shaped structure.

[0013] This invention provides a hydrogen storage device for gas production. Compared with the prior art, it has the following advantages: 1. This hydrogen storage device for gas production, through the combination of a rubber pressure cylinder and an expansion ring, can more effectively adapt to pressure changes. The rubber pressure cylinder expands under pressure, distributing the pressure throughout the entire device structure rather than concentrating it on a single elastic element. Simultaneously, the deformation of the expansion ring absorbs some pressure, and through the linkage of the pressure pipe and water pump, timely and effective pressure relief operations can be performed, greatly improving the device's pressure relief effect and safety.

[0014] 2. This hydrogen storage device for gas production utilizes a rational layout of components such as the water tank base, bottom tank cylinder, rubber pressure cylinder, and outer tank cylinder. While ensuring device performance, the structural design has been optimized, improving space utilization. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the water tank base structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of the bottom tank structure of this utility model; Figure 4 This is a cross-sectional schematic diagram of the outer canister structure of this utility model.

[0016] In the diagram: 1. Water tank base; 2. Bottom tank cylinder; 3. Expansion ring; 4. Pressure pipe; 5. Water pump; 6. Rubber pressure cylinder; 7. Outer tank cylinder; 11. Lifting angle seat; 12. Adjusting stud; 21. Outer inclined groove; 22. Sealing ring; 23. Annular groove; 71. Inner inclined groove; 72. Threaded hole; 73. Limiting screw. 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, other embodiments obtained by those of ordinary skill in the art without creative effort are all within the scope of protection of the present utility model.

[0018] Please see Figure 1-4 As shown, this utility model provides a technical solution: a hydrogen storage device for gas production, including a water tank base 1, a bottom tank cylinder 2 fixedly connected to one end of the water tank base 1, an expansion ring 3 sleeved inside the bottom tank cylinder 2, a pressure pipe 4 fixedly connected to one end of the expansion ring 3, the pressure pipe 4 passing through the bottom tank cylinder 2 and the water tank base 1 and fixedly connected to a water pump 5, and a rubber pressure cylinder 6 provided outside the expansion ring 3, an outer tank cylinder 7 fixedly connected to the outside of the rubber pressure cylinder 6, the outer tank cylinder 7 being threadedly connected to the bottom tank cylinder 2, and an inlet and outlet connecting pipe and a pressure gauge fixedly connected to one side of the rubber pressure cylinder 6.

[0019] At this point, it is worth noting that the water tank base 1 provides a stable support foundation for the entire device, ensuring that the device will not shake or shift during operation. The bottom tank 2 serves as the mounting carrier for internal components, and its internal expansion ring 3 can sensitively sense pressure changes. When the hydrogen pressure inside the rubber pressure cylinder 6 changes, the expansion ring 3 transmits the pressure signal to the water pump 5 through the pressure pipe 4, achieving precise pressure control. The rubber pressure cylinder 6, as a key component for hydrogen storage, has good elasticity to adapt to fluctuations in hydrogen pressure, ensuring stable hydrogen storage. The outer tank 7 protects and restricts the rubber pressure cylinder 6, preventing excessive expansion. Inlet and outlet connecting pipes are used for hydrogen input and output, facilitating connection to hydrogen production equipment or other hydrogen-using devices. A pressure gauge monitors the pressure inside the rubber pressure cylinder 6 in real time, providing operators with intuitive data for timely adjustments to the device's operating status. Through the coordinated work of these components, this device achieves safe and efficient hydrogen storage.

[0020] like Figure 2 As shown, a number of lifting angle seats 11 are fixedly connected to one side of the water tank base 1 in a ring-shaped, equally spaced structure, and an adjusting stud 12 is threadedly connected to one side of the lifting angle seat 11.

[0021] It is worth noting that in practical use, different installation environments may require adjustments to the device's height. By rotating the adjusting stud 12, the height of the lifting bracket 11 can be changed, thereby achieving height adjustment of the entire hydrogen storage device. This design allows the device to adapt to various complex installation sites, such as uneven ground or situations requiring height matching with other equipment, improving the device's versatility and practicality.

[0022] like Figure 3 As shown, an outer inclined groove 21 is provided on one side of the bottom tank cylinder 2, and a sealing ring 22 is sleeved on the outside of the outer inclined groove 21. An annular groove 23 is also provided on one side of the bottom tank cylinder 2.

[0023] At this point, it is worth noting that the outer inclined groove 21 on one side of the bottom tank 2, in conjunction with the externally fitted sealing ring 22, provides a good sealing effect. The design of the outer inclined groove 21 allows the sealing ring 22 to fit the bottom tank 2 better, enhancing the sealing effect. When the bottom tank 2 is connected to other components, the outer inclined groove 21 and the sealing ring 22 can effectively prevent hydrogen from leaking from the connection, ensuring the airtightness of the hydrogen storage device and improving the safety and efficiency of hydrogen storage. During the assembly of the device, the annular groove 23 can cooperate with the protrusions or clamps of other components to increase the strength of the connection.

[0024] like Figure 4As shown, one end of the outer can cylinder 7 is provided with an inner inclined groove 71 that can fit with the bottom can cylinder 2, and the outer can cylinder 7 has multiple threaded holes 72 in an annular, equally spaced structure. The threaded holes 72 are internally threaded with a limiting screw 73, and one end of the limiting screw 73 is set in a frustum-shaped structure.

[0025] At this point, it is worth noting that the inner inclined groove 71 at one end of the outer tank cylinder 7, which fits into the bottom tank cylinder 2, cooperates with the outer inclined groove 21 of the bottom tank cylinder 2, further improving the tightness and sealing of the connection between the outer tank cylinder 7 and the bottom tank cylinder 2. The precise fit between the inner inclined groove 71 and the outer inclined groove 21 results in a larger contact area and a more secure connection during threaded connection. Simultaneously, this design also helps improve the sealing performance at the connection, effectively preventing hydrogen leakage and ensuring the normal operation of the hydrogen storage device. During installation, according to actual needs, the limiting screw 73 is screwed into the corresponding threaded hole 72, and its length is adjusted so that the frustum-shaped structure at one end of the limiting screw 73 makes tight contact with the annular groove 23, thereby achieving a stable connection between the outer tank cylinder 7 and the bottom tank cylinder 2.

[0026] During operation or use, when hydrogen enters the rubber pressure cylinder 6 through the inlet and outlet connecting pipes, the pressure inside the cylinder gradually increases as the amount of hydrogen increases. At this time, the rubber pressure cylinder 6, due to its good elasticity, will expand under the action of internal pressure. Since the outer canister 7 is fixed to the outside of the rubber pressure cylinder 6, the outer canister 7 plays a certain role in limiting its expansion and preventing the rubber pressure cylinder 6 from being damaged due to excessive expansion. At the same time, the expansion of the rubber pressure cylinder 6 will compress the surrounding air, so that the air transmits pressure to the expansion ring 3 through the pressure pipe 4. The expansion ring 3 will also undergo corresponding deformation under pressure. This deformation is transmitted to the water pump 5 through the pressure pipe 4. The water pump 5 can start or stop working according to the received pressure signal. When the pressure is too high, the water pump 5 stops working and pumps the liquid filling the expansion ring 3 back into the water tank base 1, reducing the pressure in the rubber pressure cylinder 6 and maintaining the pressure balance of the system. Conversely, when the pressure is low, the water pump 5 works, filling the expansion ring 3 with liquid and squeezing the rubber pressure cylinder 6 to ensure the stable storage of hydrogen in the hydrogen storage device and maintain the pressure balance of the system.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen storage device for gas production, characterized in that, include: A water tank base (1) is fixedly connected to a bottom tank cylinder (2) at one end. An expansion ring (3) is fitted inside the bottom tank cylinder (2). A pressure pipe (4) is fixedly connected to one end of the expansion ring (3). The pressure pipe (4) passes through the bottom tank cylinder (2) and the water tank base (1) and is fixedly connected to a water pump (5). A rubber pressure cylinder (6) is provided outside the expansion ring (3). An outer tank cylinder (7) is fixedly connected to the outside of the rubber pressure cylinder (6). The outer tank cylinder (7) is threadedly connected to the bottom tank cylinder (2). An inlet and outlet connecting pipe and a pressure gauge are fixedly connected to one side of the rubber pressure cylinder (6).

2. A hydrogen storage device for gas production according to claim 1, characterized in that: The water tank base (1) has a ring-shaped, equally spaced structure on one side with multiple lifting angle seats (11), and an adjusting stud (12) is threaded onto one side of the lifting angle seat (11).

3. A hydrogen storage device for gas production according to claim 1, characterized in that: The bottom tank (2) has an outer inclined groove (21) on one side, and a sealing ring (22) is fitted around the outside of the outer inclined groove (21).

4. A hydrogen storage device for gas production according to claim 1, characterized in that: An annular groove (23) is provided on one side of the bottom tank cylinder (2).

5. A hydrogen storage device for gas production according to claim 1, characterized in that: The outer can (7) has an inner inclined groove (71) at one end that can fit with the bottom can (2).

6. A hydrogen storage device for gas production according to claim 1, characterized in that: The outer can cylinder (7) has multiple threaded holes (72) with an annular, equally spaced structure on the outside. The threaded holes (72) are internally threaded with a limiting screw (73), and one end of the limiting screw (73) is set in a frustum shape.

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