Hydrogen storage well protection device

By designing a sealed component for the protection device of the hydrogen storage well, the problem of inconvenient inspection of the wellhead device of the hydrogen storage well was solved, and a convenient and sealed connection between the gas outlet pipeline and the hydrogen storage well was achieved, as well as safe maintenance, thereby enhancing the safety and maintenance efficiency of the hydrogen storage well.

CN223869023UActive Publication Date: 2026-02-03SICHUAN PETROLEUM & NATURAL GAS SCI & TECH CORP
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Patent Information

Application Number
CN202520501739.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-03
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

The existing hydrogen storage wellhead equipment makes it inconvenient to regularly inspect the connection between the gas outlet pipeline and the hydrogen storage well during use, which increases the risk of leakage.

Method used

A hydrogen storage well protection device was designed, which includes a sealing component. By rotating the fixed handle, the turntable and connecting cylinder are rotated. The sealing plate is expanded by using a threaded ring and hinged rod structure, opening the top passage of the well to facilitate the entry of maintenance personnel for sealing inspection.

Benefits of technology

It achieves a convenient and airtight connection between the gas outlet pipeline and the hydrogen storage well, ensuring maintenance safety, preventing items from falling into the well and affecting the maintenance effect, and monitoring the safety of the confined environment through a hydrogen alarm.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a hydrogen storage well protection device which comprises a protection plate, the bottom of the protection plate is provided with a well, the top of the protection plate is fixedly provided with a fixing cylinder, the top of the fixing cylinder is movably provided with a rotating disc, the bottom of the rotating disc is fixedly connected with a connecting cylinder, and the outer portion of the connecting cylinder is movably provided with a sealing assembly. According to the hydrogen storage well protection device, a sealing assembly and a fixed handle are arranged to drive a rotating disc and a connecting cylinder to rotate, when the connecting cylinder drives a threaded cylinder to rotate, a limiting cylinder limits a first hinge block, so that a threaded ring can be in threaded connection to the outer surface of the threaded cylinder, and when the threaded ring slides upwards, the length of a hinge rod is fixed; when the hydrogen storage well body is maintained, the sealing plate is driven to extend outwards, a top channel of the fixing cylinder is opened, workers can conveniently enter the well for inspection and maintenance, the sealing assembly can seal and protect the top of the well, and therefore the situation that the maintenance effect of the hydrogen storage well body is affected due to the fact that objects fall into the well is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of hydrogen storage well technology, specifically a hydrogen storage well protection device. Background Technology

[0002] Hydrogen storage wells are buried underground. They are underground wells made of special materials and buried at a depth of about 150 meters. They have the characteristics of high safety factor and small footprint, and their footprint is only 1 / 10 of the commonly used above-ground hydrogen storage equipment. The structure of a hydrogen storage well includes a bottom device, a well cylinder, an internal drainage pipe and a wellhead device. The wellhead is generally open, requiring staff to go deep underground to regularly inspect and maintain the hydrogen storage well.

[0003] According to a utility model patent with Chinese patent application number 202420061582.3, a hydrogen storage wellhead device is provided. This device improves the sealing effect during connection by setting a limiting boss between the upper and lower flanges, reducing gas leakage at the connection surface. A limiting ring is also provided to assist in fixing and improve the tightening effect. However, this device lacks the function of regularly inspecting and protecting the connection between the gas outlet pipe and the hydrogen storage well. This makes leaks at the connection point difficult to detect during normal use, posing a certain danger. Therefore, it is necessary to propose a hydrogen storage well protection device to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a hydrogen storage well protection device, which has the advantages of enabling workers to easily perform a sealing connection between the gas outlet pipe and the hydrogen storage well, thus solving the problem of inconvenience in inspecting and maintaining the gas outlet pipe and the hydrogen storage well in the prior art.

[0005] To achieve the above-mentioned purpose of facilitating the sealing connection of the gas outlet pipeline and the hydrogen storage well by the staff, this utility model provides the following technical solution: a hydrogen storage well protection device, including a protective plate, a well channel provided at the bottom of the protective plate, a fixed cylinder fixedly installed at the top of the protective plate, a turntable movably installed at the top of the fixed cylinder, a fixed handle fixedly installed at the top of the turntable, a connecting cylinder fixedly connected to the bottom of the turntable, and a sealing component movably installed on the outside of the connecting cylinder;

[0006] The enclosed assembly includes a threaded cylinder, the bottom of which is fixedly connected to the threaded cylinder. Threaded rings mesh with each other on the outer surface of the threaded cylinder. A first hinge block is fixedly installed on the outer surface of the threaded ring. A hinge rod is movably installed on one side of the first hinge block. A second hinge block is movably installed on the top of the hinge rod. A closing plate is fixedly connected to the top of the second hinge block.

[0007] Furthermore, a second insertion slot is provided on the outside of the fixed cylinder, and a sealing plate is inserted into the inside of the second insertion slot.

[0008] Furthermore, a first insertion groove is provided on the outer surface of the connecting cylinder, and a sealing plate is inserted into the inside of the first insertion groove.

[0009] Furthermore, a limiting cylinder is fixedly installed inside the fixed cylinder, and a sliding groove is provided on the outside of the limiting cylinder, with the first hinge block slidably installed inside the sliding groove.

[0010] Furthermore, a hydrogen storage well body is provided at the bottom of the wellbore, and an outlet pipe and the wellbore pass through the top of the fixed cylinder and are connected to the hydrogen storage well body.

[0011] Furthermore, a hydrogen alarm is fixedly installed at the bottom of the turntable, and the enclosed plate is slidably installed inside the fixed cylinder.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This hydrogen storage well protection device, through the installation of a sealing component, operates by rotating a fixed handle. This handle rotates the turntable and connecting cylinder. As the connecting cylinder rotates the threaded cylinder, the limiting cylinder restricts the first hinge block, allowing the threaded ring to slide upwards onto the outer surface of the threaded cylinder. Since the hinge rod has a fixed length, this causes the sealing plate to expand outwards, opening the top passage of the fixed cylinder. This facilitates personnel access to the well for inspection and maintenance. Furthermore, the sealing component provides protection to the top of the well, preventing objects from falling into the well and affecting the maintenance of the hydrogen storage well itself.

[0014] This hydrogen storage well protection device, through the installation of a sealing component, allows maintenance personnel to directly enter the interior of the well and onto the hydrogen storage well body for maintenance and inspection when a sealing check is required at the connection between the hydrogen storage well body and the outlet pipeline. The well body also protects the outlet pipeline. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the hydrogen storage well structure of this utility model;

[0016] Figure 2 This is a front sectional view of the protective device of this utility model;

[0017] Figure 3 This is a perspective view of the connecting cylinder structure of this utility model;

[0018] Figure 4 This utility model Figure 2Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Protective plate; 2. Well passage; 3. Hydrogen storage well body; 4. Fixed cylinder; 5. Turntable; 6. Fixed handle; 7. Gas outlet pipe; 8. Connecting cylinder; 9. First insertion slot; 10. Sealing assembly; 101. Threaded cylinder; 102. Threaded ring; 103. First hinge block; 104. Hinge rod; 105. Second hinge block; 106. Sealing plate; 11. Slide groove; 12. Second insertion slot; 13. Hydrogen alarm; 14. Limiting cylinder. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 A hydrogen storage well protection device in this embodiment includes a protective plate 1, a well channel 2 at the bottom of the protective plate 1, a fixed cylinder 4 fixedly installed at the top of the protective plate 1, a turntable 5 movably installed at the top of the fixed cylinder 4, a fixed handle 6 fixedly installed at the top of the turntable 5, a connecting cylinder 8 fixedly connected to the bottom of the turntable 5, and a sealing component 10 movably installed on the outside of the connecting cylinder 8.

[0022] The enclosing assembly 10 includes a threaded cylinder 101. The bottom of the connecting cylinder 8 is fixedly connected to the threaded cylinder 101. Threaded rings 102 mesh with each other on the outer surface of the threaded cylinder 101. A first hinge block 103 is fixedly installed on the outer surface of the threaded ring 102. A hinge rod 104 is movably installed on one side of the first hinge block 103. A second hinge block 105 is movably installed on the top of the hinge rod 104. A closing plate 106 is fixedly connected to the top of the second hinge block 105. The side wall of the connecting cylinder 8 has an opening along the circumference for the closing plate 106 to enter and exit.

[0023] In the implementation of the case, when it is necessary to check the sealing of the connection between the hydrogen storage well body 3 and the gas outlet pipe 7, the channel at the top of the fixing cylinder 4 is opened, and maintenance personnel can directly enter the interior of the well 2 to the hydrogen storage well body 3 through the fixing cylinder 4 to carry out maintenance and inspection. The well 2 can also protect the gas outlet pipe 7.

[0024] In the implementation of the case, the enclosure component 10 is set directly above the shaft 2. By rotating the fixed handle 6, the fixed handle 6 will drive the turntable 5 and the connecting cylinder 8 to rotate.

[0025] In the implementation of the case, when the connecting cylinder 8 drives the threaded cylinder 101 to rotate, the limiting cylinder 14 limits the first hinge block 103, so that the threaded ring 102 can be threadedly connected to the outer surface of the threaded cylinder 101 and slide upward. Since the length of the hinge rod 104 is fixed, it will drive the sealing plate 106 to expand outward, thereby opening the top channel of the fixed cylinder 4, which makes it convenient for the staff to enter the interior of the well 2 for inspection and maintenance. In addition, the sealing component 10 can seal and protect the top of the well 2, thereby preventing items from falling into the interior of the well 2 and affecting the maintenance effect of the hydrogen storage well body 3.

[0026] In the implementation of the case, the sealing plate 106 is inserted into the interior of the first insertion slot 9 through the second insertion slot 12 and then inserted into the interior of the connecting cylinder 8 to seal the connecting cylinder 8. The sealing plate 106 can cover the outside of the gas outlet pipe 7, thereby protecting the part below the bottom of the gas outlet pipe 7 and forming a sealed space. The well 2 under the sealed space is monitored by the hydrogen alarm 13 to detect whether hydrogen is leaking in the sealed environment, thereby improving the safety of the hydrogen storage well body 3.

[0027] In summary, this hydrogen storage well protection device, by setting up a sealing component 10, allows the sealing component 10, located directly above the well 2, to rotate the fixed handle 6. The fixed handle 6 then rotates the turntable 5 and the connecting cylinder 8. When the connecting cylinder 8 rotates the threaded cylinder 101, the limiting cylinder 14 limits the first hinge block 103, allowing the threaded ring 102 to slide upwards on the outer surface of the threaded cylinder 101. Since the length of the hinge rod 104 is fixed, it causes the sealing plate 106 to expand outwards, opening the top channel of the fixed cylinder 4. This facilitates personnel entering the well 2 for inspection and maintenance. Furthermore, the sealing component 10 provides sealing protection to the top of the well 2, preventing objects from falling into the well 2 and affecting the maintenance of the hydrogen storage well body 3.

[0028] Furthermore, by setting up the sealing component 10, when it is necessary to check the sealing of the connection between the hydrogen storage well body 3 and the gas outlet pipe 7, the channel at the top of the fixing cylinder 4 is opened, and maintenance personnel can directly enter the interior of the well passage 2 to the hydrogen storage well body 3 through the fixing cylinder 4 to carry out maintenance and inspection, and the well passage 2 can protect the gas outlet pipe 7.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] 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 well protection device, comprising a protective plate (1), characterized in that: The bottom of the protective plate (1) is provided with a well channel (2), the top of the protective plate (1) is fixedly installed with a fixed cylinder (4), the top of the fixed cylinder (4) is movably installed with a turntable (5), the top of the turntable (5) is fixedly installed with a fixed handle (6), the bottom of the turntable (5) is fixedly connected with a connecting cylinder (8), and the outside of the connecting cylinder (8) is movably installed with a sealing component (10). The enclosed assembly (10) includes a threaded cylinder (101), the bottom of the connecting cylinder (8) is fixedly connected to the threaded cylinder (101), the outer surface of the threaded cylinder (101) is meshed with a threaded ring (102), the outer surface of the threaded ring (102) is fixedly installed with a first hinge block (103), a hinge rod (104) is movably installed on one side of the first hinge block (103), the top end of the hinge rod (104) is movably installed with a second hinge block (105), and the top of the second hinge block (105) is fixedly connected to a closing plate (106).

2. The hydrogen storage well protection device according to claim 1, characterized in that: The fixed cylinder (4) has a second insertion groove (12) on its outside, and a sealing plate (106) is inserted into the inside of the second insertion groove (12).

3. The hydrogen storage well protection device according to claim 1, characterized in that: The outer surface of the connecting cylinder (8) is provided with a first insertion groove (9), and a sealing plate (106) is inserted into the first insertion groove (9).

4. The hydrogen storage well protection device according to claim 1, characterized in that: The fixed cylinder (4) has a limiting cylinder (14) fixedly installed inside, and the limiting cylinder (14) has a sliding groove (11) on the outside. The first hinge block (103) is slidably installed inside the sliding groove (11).

5. A hydrogen storage well protection device according to claim 1, characterized in that: The bottom of the well (2) is provided with a hydrogen storage well body (3), and the top of the fixed cylinder (4) is connected to the hydrogen storage well body (3) through the gas outlet pipe (7) and the well (2).

6. A hydrogen storage well protection device according to claim 1, characterized in that: A hydrogen alarm (13) is fixedly installed at the bottom of the turntable (5), and the sealing plate (106) is slidably installed inside the fixed cylinder (4).

Citation Information

Patent Citations

  • Wellhead device of hydrogen storage well

    CN221742556U