Hydrogen preparation device

Abstract

The utility model discloses a hydrogen preparation device which comprises a storage tank, an input pipe is arranged on the storage tank, a sealing mechanism is arranged on the input pipe, the sealing mechanism comprises a rotating sleeve, a connecting sleeve, a screw rod, a transmission sleeve, an adjusting sleeve, a valve plate, a push spring and an abutting ring, the rotating sleeve is fixed at the top end of the input pipe, the connecting sleeve rotates in the rotating sleeve, and the screw rod is arranged on the connecting sleeve. The screw rod is fixed to the inner side of the rotating sleeve, the transmission sleeve is in threaded connection to the outer side of the screw rod, the adjusting sleeve is fixed to the outer wall of the transmission sleeve, the valve plate is tightly attached to the inner side of the connecting sleeve, the multiple sets of push springs are installed on the top face of the valve plate, the abutting ring is installed at the top ends of the multiple sets of push springs, and a positioning mechanism is arranged on the outer side of the connecting sleeve. Wherein the basic structure of the rotating sleeve and the connecting sleeve is matched with the transmission design of the screw rod and the transmission sleeve, and automatic sealing of the storage tank is achieved through precise matching of the adjusting sleeve and the valve plate and elastic pressing of the push spring and the abutting ring.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production technology, and more specifically, to a hydrogen production apparatus. Background Technology

[0002] In modern industrial production and new energy application, hydrogen is becoming increasingly important as a clean energy carrier. The safety and efficiency of its preparation, storage and transportation directly affect the development of the entire hydrogen energy industry chain. Currently, after preparation, hydrogen needs to be compressed to a high pressure state by pressurization equipment and stored in a special storage container. This process requires efficient and safe sealing measures to prevent hydrogen leakage from causing safety hazards.

[0003] However, existing storage systems have significant shortcomings. After hydrogen delivery, operators need to manually seal the storage containers. This method is not only time-consuming and labor-intensive, but also prone to incomplete sealing due to human error. In addition, there are certain safety risks in the manual sealing process, and repeated manual operations during frequent filling reduce production efficiency. Furthermore, the lack of an automated sealing mechanism makes it impossible to achieve rapid sealing in emergencies, increasing the potential risk of hydrogen leakage. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a hydrogen production device to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hydrogen production device, including a storage tank, an input pipe on the storage tank, and a sealing mechanism on the input pipe. The sealing mechanism includes a rotating sleeve, a connecting sleeve, a screw, a transmission sleeve, an adjusting sleeve, a valve plate, a push spring, and a retaining ring. The rotating sleeve is fixed to the top of the input pipe, the connecting sleeve rotates inside the rotating sleeve, the screw is fixed inside the rotating sleeve, the transmission sleeve is threaded to the outside of the screw, the adjusting sleeve is fixed to the outer wall of the transmission sleeve, the valve plate is tightly against the inner side of the connecting sleeve, and the push spring is provided with... Multiple sets of springs are installed on the top surface of the valve plate, and the abutment ring is installed on the top of multiple sets of push springs. A positioning mechanism is provided on the outside of the connecting sleeve. The positioning mechanism includes a limiting block, a limiting groove, a limiting sleeve, a push rod, a stop block, an unlocking sleeve, and a clearance groove. Multiple sets of limiting blocks slide on the adjusting sleeve, multiple sets of limiting grooves are distributed on the outer wall of the connecting sleeve, the limiting sleeve slides on the outer wall of the connecting sleeve, multiple sets of push rods are distributed on the bottom surface of the limiting sleeve, the stop block is located at the bottom end of multiple sets of push rods, the unlocking sleeve rotates on the outer wall of the connecting sleeve, and multiple sets of clearance grooves are distributed on the unlocking sleeve.

[0008] The present invention is further configured such that a connecting tube is provided at the top of the connecting sleeve, a sliding rod is installed inside the connecting tube, a sliding sleeve is installed inside the valve plate, the sliding sleeve and the sliding rod are slidably connected, and external connection is achieved through the connecting tube. The cooperation between the sliding rod and the sliding sleeve ensures the stability of the valve plate movement.

[0009] The present invention is further configured such that the slide rod is polygonal and its top end is rotatably connected to the screw, and the inner side of the sliding sleeve is polygonal and slidably connected to the slide rod. The polygonal design prevents the slide rod from rotating and ensures the accuracy of transmission.

[0010] The present invention is further configured such that a guide strip is provided on the inner side of the connecting sleeve, and a guide groove is provided on the outer wall of the adjusting sleeve. Multiple sets of the guide strip and the guide groove are provided and slidably connected. Precise guidance is achieved through the cooperation of the guide strip and the guide groove to prevent deviation.

[0011] The present invention is further configured such that a sealing ring is provided on the bottom surface of the valve plate, and a sealing groove adapted to the sealing ring is provided on the inner bottom surface of the connecting sleeve. Reliable sealing is achieved through the cooperation of the sealing ring and the sealing groove to prevent leakage.

[0012] The present invention is further configured such that a push rod is installed on the bottom surface of the valve plate, and multiple sets of push rods are provided and slidably connected to the connecting sleeve. A pressure plate is installed at the bottom end of the multiple sets of push rods, and the emergency manual opening function is realized through the design of the pressure plate and the push rod.

[0013] The present invention is further configured such that a reset spring is installed at the top of each of the multiple sets of limiting blocks, and the bottom of each of the multiple sets of reset springs is fixedly connected to the outer wall of the adjusting sleeve. The automatic reset function of the limiting blocks is ensured by the setting of the reset spring.

[0014] The present invention is further configured such that a compression spring is installed on the bottom surface of the limiting sleeve, and multiple sets of compression springs are arranged on the bottom surface of the limiting sleeve and abut against the unlocking sleeve, thereby realizing the elastic positioning function of the limiting sleeve through the design of the compression spring.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a hydrogen production device, which has the following beneficial effects:

[0017] 1. By setting a sealing mechanism on the input pipe, the basic structure of the rotating sleeve and the connecting sleeve, together with the transmission design of the screw and the transmission sleeve, through the precise matching of the adjusting sleeve and the valve plate, and by utilizing the elastic compression of the push spring and the abutment ring, the automatic sealing of the storage tank is achieved.

[0018] 2. The positioning structure of the positioning mechanism adopts the limiting block and limiting groove, combined with the guiding design of the limiting sleeve and the top rod. Through the locking cooperation of the stop block and the unlocking sleeve, and with the flexible design of the clearance groove, the adjustable sealing strength and the reliable locking are achieved.

[0019] 3. The pressure plate provides a manual opening function in case of emergency. The push rod transmission design enables rapid pressure relief, while the polygonal fit between the slide rod and the slide sleeve further ensures the stability of the transmission. The cooperation between the guide bar and the guide groove improves the motion accuracy, and the matching between the sealing ring and the sealing groove ensures the sealing effect. The overall structure not only solves the problem of inconvenient sealing in traditional hydrogen storage devices, but also improves operational safety, significantly improving the practicality and reliability of the hydrogen storage system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a hydrogen production device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the input tube structure in this utility model;

[0022] Figure 3 This is a cross-sectional view of the sealing mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the sealing mechanism in this utility model;

[0024] Figure 5 This is a cross-sectional view of the positioning mechanism in this utility model.

[0025] In the diagram: 1. Storage tank; 2. Input pipe; 3. Rotating sleeve; 4. Connecting sleeve; 5. Screw; 6. Transmission sleeve; 7. Adjusting sleeve; 8. Valve plate; 9. Push spring; 10. Abutment ring; 11. Limiting block; 12. Limiting groove; 13. Limiting sleeve; 14. Push rod; 15. Stop block; 16. Unlocking sleeve; 17. Relief groove; 18. Connecting pipe; 19. Sliding rod; 20. Sliding sleeve; 21. Guide bar; 22. Guide groove; 23. Sealing ring; 24. Push rod; 25. Pressure plate; 26. Reset spring; 27. Compression spring. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A hydrogen production apparatus includes a storage tank 1, an input pipe 2 on the storage tank 1, and a sealing mechanism on the input pipe 2. The sealing mechanism includes a rotating sleeve 3, a connecting sleeve 4, a screw 5, a transmission sleeve 6, an adjusting sleeve 7, a valve plate 8, a push spring 9, and an abutment ring 10. The rotating sleeve 3 is fixed to the top of the input pipe 2, the connecting sleeve 4 rotates inside the rotating sleeve 3, the screw 5 is fixed to the inner side of the rotating sleeve 3, the transmission sleeve 6 is threaded to the outer side of the screw 5, the adjusting sleeve 7 is fixed to the outer wall of the transmission sleeve 6, the valve plate 8 is tightly attached to the inner side of the connecting sleeve 4, multiple sets of push springs 9 are installed on the top surface of the valve plate 8, and the abutment ring 10 is installed on... At the top of multiple sets of push springs 9, a positioning mechanism is provided on the outer side of the connecting sleeve 4. The positioning mechanism includes a limiting block 11, a limiting groove 12, a limiting sleeve 13, a push rod 14, a stop block 15, an unlocking sleeve 16, and a clearance groove 17. The limiting block 11 has multiple sets that slide on the adjusting sleeve 7. The limiting groove 12 has multiple sets that are distributed on the outer wall of the connecting sleeve 4. The limiting sleeve 13 slides on the outer wall of the connecting sleeve 4. The push rod 14 has multiple sets that are distributed on the bottom surface of the limiting sleeve 13. The stop block 15 is located at the bottom end of the multiple sets of push rods 14. The unlocking sleeve 16 rotates on the outer wall of the connecting sleeve 4. The clearance groove 17 has multiple sets that are distributed on the unlocking sleeve 16.

[0030] The top of the connecting sleeve 4 is provided with a connecting tube 18, and a sliding rod 19 is installed inside the connecting tube 18. A sliding sleeve 20 is installed inside the valve plate 8. The sliding sleeve 20 is slidably connected to the sliding rod 19. The valve plate 8 can be smoothly raised and lowered through the sliding cooperation between the sliding rod 19 and the sliding sleeve 20.

[0031] The slide rod 19 is polygonal and its top end is rotatably connected to the screw 5. The inner side of the sliding sleeve 20 is polygonal and is slidably connected to the slide rod 19. The polygonal structure prevents the slide rod 19 and the sliding sleeve 20 from rotating relative to each other, ensuring motion stability.

[0032] The inner side of the connecting sleeve 4 is provided with a guide bar 21, and the outer wall of the adjusting sleeve 7 is provided with a guide groove 22. Multiple sets of guide bars 21 and guide grooves 22 are provided and slidably connected. The movement trajectory of the adjusting sleeve 7 is limited by the sliding of the guide bar 21 in the guide groove 22.

[0033] The bottom surface of the valve plate 8 is provided with a sealing ring 23, and the bottom surface of the connecting sleeve 4 is provided with a sealing groove that matches the sealing ring 23. Under pressure, the sealing ring 23 fits tightly with the sealing groove to form a seal.

[0034] A push rod 24 is installed on the bottom surface of the valve plate 8. Multiple sets of push rods 24 are provided and are slidably connected to the connecting sleeve 4. A pressure plate 25 is installed at the bottom end of the multiple sets of push rods 24. The valve plate 8 is manually opened by pushing the multiple sets of push rods 24 through the pressure plate 25.

[0035] Each of the multiple sets of limiting blocks 11 is equipped with a return spring 26 at its top end, and the bottom ends of the multiple sets of return springs 26 are fixedly connected to the outer wall of the adjusting sleeve 7. The return springs 26 use their elasticity to keep the limiting blocks 11 engaged with the limiting grooves 12.

[0036] A compression spring 27 is installed on the bottom surface of the limiting sleeve 13. Multiple sets of compression springs 27 are distributed on the bottom surface of the limiting sleeve 13 and abut against the unlocking sleeve 16. The compression spring 27 provides elasticity so that the limiting sleeve 13 always keeps in contact with the unlocking sleeve 16.

[0037] In this embodiment, the connecting pipe 18 is connected to an external pressurized conveying device. The pressure pushes the valve plate 8, causing the sealing ring 23 to disengage from the sealing groove and compressing multiple sets of push springs 9, so that flow can be formed between the valve plate 8 and the connecting sleeve 4. Hydrogen is conveyed to the storage tank 1 through the connecting sleeve 4 and the input pipe 2. After the conveying is completed, the multiple sets of push springs 9 reset and push the valve plate 8 and the connecting sleeve 4 to seal the input pipe 2 tightly. When it is necessary to manually release the seal, the pressure plate 25 is pressed and the valve rod is pushed by multiple sets of push rods 24, so that the valve plate 8 disengages from the connecting sleeve 4 to form a pressure relief channel.

[0038] More specifically, when locking is required, rotating the unlocking sleeve 16 causes multiple sets of clearance grooves 17 to move below multiple sets of stops 15, causing the unlocking sleeve 16 to release its contact with the multiple sets of stops 15, pushing the limiting sleeve 13 to release its contact with the multiple sets of limiting blocks 11 and compressing the compression spring 27. The multiple sets of reset springs 26 pull the limiting block 11 away from the limiting groove 12 to release the positioning of the adjusting sleeve 7. Rotating the adjusting sleeve 7 drives the screw 5 to rotate and engage with the transmission sleeve 6 through a threaded connection, causing the transmission sleeve 6 to drive the adjusting sleeve 7 to push the abutment ring 10 and compress the multiple sets of push springs 9. At this time, the pressure applied by the multiple sets of push springs 9 to the valve plate 8 is increased. When the multiple sets of push springs 9 are fully compressed, the multiple sets of compression springs 27 reset and push the limiting block 11 to abut against the top of the multiple sets of limiting blocks 11, so that the top of the multiple sets of limiting blocks 11 is engaged in the limiting groove 12 to lock the adjusting sleeve 7, thus completing the complete locking of the valve plate 8.

[0039] In summary, during the use or operation of the overall equipment: the connecting pipe 18 is connected to the external pressurized conveying equipment. The pressure pushes the valve plate 8, causing the sealing ring 23 to disengage from the sealing groove and compressing multiple sets of push springs 9, so that flow can be formed between the valve plate 8 and the connecting sleeve 4. Hydrogen is conveyed to the storage tank 1 through the connecting sleeve 4 and the input pipe 2. After the conveying is completed, the multiple sets of push springs 9 reset and push the valve plate 8 and the connecting sleeve 4 to seal the input pipe 2 tightly. When it is necessary to manually release the seal, press the pressure plate 25 to push the valve stem through multiple sets of push rods 24, so that the valve plate 8 disengages from the connecting sleeve 4 to form a pressure relief channel.

[0040] When locking is required, rotating the unlocking sleeve 16 causes multiple sets of clearance grooves 17 to move below multiple sets of stops 15, thus releasing the unlocking sleeve 16 from contact with the multiple sets of stops 15. This pushes the limiting sleeve 13 to release its contact with the multiple sets of limiting blocks 11 and compresses the compression spring 27. The multiple sets of reset springs 26 pull the limiting block 11 away from the limiting groove 12, releasing the positioning of the adjusting sleeve 7. Rotating the adjusting sleeve 7 drives the screw 5 to rotate and engage with the transmission sleeve 6 through a threaded connection. This causes the transmission sleeve 6 to drive the adjusting sleeve 7 to push the abutment ring 10 and compress the multiple sets of push springs 9. At this time, the pressure applied by the multiple sets of push springs 9 to the valve plate 8 is increased. When the multiple sets of push springs 9 are fully compressed, the multiple sets of compression springs 27 reset and push the limiting block 11 to abut against the top of the multiple sets of limiting blocks 11. This causes the top of the multiple sets of limiting blocks 11 to engage in the limiting groove 12 and lock the adjusting sleeve 7, thus completing the complete locking of the valve plate 8.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydrogen production apparatus, comprising a storage tank (1), characterized in that: The storage tank (1) is provided with an input pipe (2), and the input pipe (2) is provided with a sealing mechanism. The sealing mechanism includes a rotating sleeve (3), a connecting sleeve (4), a screw (5), a transmission sleeve (6), an adjusting sleeve (7), a valve plate (8), a push spring (9), and an abutment ring (10). The rotating sleeve (3) is fixed to the top of the input pipe (2), the connecting sleeve (4) rotates inside the rotating sleeve (3), the screw (5) is fixed inside the rotating sleeve (3), the transmission sleeve (6) is threaded to the outside of the screw (5), the adjusting sleeve (7) is fixed to the outer wall of the transmission sleeve (6), the valve plate (8) is tightly attached to the inside of the connecting sleeve (4), and multiple sets of push springs (9) are installed on the top surface of the valve plate (8). The abutment ring (10) is installed on multiple sets of push springs. (9) At the top, a positioning mechanism is provided on the outside of the connecting sleeve (4). The positioning mechanism includes a limiting block (11), a limiting groove (12), a limiting sleeve (13), a top rod (14), a stop block (15), an unlocking sleeve (16), and a clearance groove (17). The limiting block (11) is provided with multiple sets that slide on the adjusting sleeve (7). The limiting groove (12) is provided with multiple sets that are distributed on the outer wall of the connecting sleeve (4). The limiting sleeve (13) slides on the outer wall of the connecting sleeve (4). The top rod (14) is provided with multiple sets that are distributed on the bottom surface of the limiting sleeve (13). The stop block (15) is provided at the bottom end of the multiple sets of top rods (14). The unlocking sleeve (16) rotates on the outer wall of the connecting sleeve (4). The clearance groove (17) is provided with multiple sets that are distributed on the unlocking sleeve (16).

2. The hydrogen production apparatus according to claim 1, characterized in that: The top of the connecting sleeve (4) is provided with a connecting tube (18), and a sliding rod (19) is installed inside the connecting tube (18). A sliding sleeve (20) is installed inside the valve plate (8), and the sliding sleeve (20) is slidably connected to the sliding rod (19).

3. The hydrogen production apparatus according to claim 2, characterized in that: The slide bar (19) is polygonal and its top end is rotatably connected to the screw (5). The inner side of the sliding sleeve (20) is polygonal and is slidably connected to the slide bar (19).

4. The hydrogen production apparatus according to claim 3, characterized in that: The inner side of the connecting sleeve (4) is provided with a guide strip (21), and the outer wall of the adjusting sleeve (7) is provided with a guide groove (22). The guide strip (21) and the guide groove (22) are provided in multiple sets and are slidably connected.

5. The hydrogen production apparatus according to claim 4, characterized in that: The valve plate (8) has a sealing ring (23) on its bottom surface, and the connecting sleeve (4) has a sealing groove that matches the sealing ring (23) on its inner bottom surface.

6. The hydrogen production apparatus according to claim 5, characterized in that: The bottom surface of the valve plate (8) is provided with a push rod (24), and there are multiple sets of push rods (24) that are slidably connected to the connecting sleeve (4). The bottom end of the multiple sets of push rods (24) is provided with a pressure plate (25).

7. A hydrogen production apparatus according to claim 6, characterized in that: multiple sets Each of the limiting blocks (11) is equipped with a reset spring (26) at its top end, and the bottom ends of the multiple sets of reset springs (26) are fixedly connected to the outer wall of the adjusting sleeve (7).

8. The hydrogen production apparatus according to claim 7, characterized in that: A compression spring (27) is installed on the bottom surface of the limiting sleeve (13). The compression spring (27) is provided in multiple sets distributed on the bottom surface of the limiting sleeve (13) and abuts against the unlocking sleeve (16).

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