Wear-resistant bottle opening structure of basalt fiber hydrogen storage bottle

Abstract

The utility model belongs to the technical field of hydrogen storage bottle manufacturing and processing, and particularly discloses an anti-abrasion bottle opening structure of a basalt fiber hydrogen storage bottle, which comprises a bottle opening wall, an external thread, an internal thread, a sealing groove, a positioning groove, a fixing through hole, a fixed connection groove, a fiber auxiliary fixing block and a rotation stopping ring, an external thread is designed to be a pipe thread and can be used for cylinder valve connection, carbon fiber winding and fixing, bottle opening plastic post-processing, machining, fixing and supporting and the like, a fiber auxiliary fixing block assists a fixing through hole to fix the whole bottle opening structure to a hydrogen storage bottle inner container, and a rotation stopping ring is installed on the periphery of the bottle opening wall. Rotation stopping control on the wall of the bottle opening can be achieved through the external threads.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage bottle manufacturing and processing, in particular to an anti-wear bottle mouth structure of a basalt fiber hydrogen storage bottle applied in the technical field of hydrogen storage bottle manufacturing and processing. Background Art

[0002] Basalt fiber hydrogen storage bottle is a high-pressure hydrogen storage container that uses basalt fiber composite materials as reinforcement materials. Basalt fiber has excellent mechanical properties and high temperature resistance, as well as low cost and good environmental compatibility, making it an ideal material for the manufacture of hydrogen storage bottles. Basalt fiber hydrogen storage bottles are designed to provide a hydrogen storage solution with high safety, high hydrogen storage density and long-term stability, especially suitable for hydrogen vehicles and portable hydrogen energy systems.

[0003] The unique property of basalt fiber is that it has enhanced strength at low temperatures, which is comparable to carbon fiber, but the cost is only one-tenth of that of carbon fiber. In addition, the thermal expansion coefficient of basalt fiber is better than that of carbon fiber in compatibility with aluminum alloys and has good fatigue resistance. These characteristics make the application of basalt fiber composites in low-temperature and high-pressure hydrogen storage containers outstanding. Hydrogen storage containers based on basalt fiber composites can be designed as Type III bottles, which usually use a seamless liner of 6061 aluminum alloy inside and are made of basalt composite materials on the outside to provide sufficient strength and toughness. This structural design not only ensures the safety of hydrogen storage bottles under extreme conditions, but also achieves higher volume and mass hydrogen storage density through optimized design.

[0004] The research and development and application of basalt fiber hydrogen storage bottles are an important part of the development of hydrogen energy technology. They are of great significance in improving hydrogen energy storage efficiency, reducing transportation costs and promoting the commercialization of the hydrogen energy industry. With the promotion of hydrogen energy as a clean energy, the market demand for basalt fiber hydrogen storage bottles is expected to continue to grow, providing strong technical support for achieving sustainable energy transformation. Utility Model Content

[0005] The utility model aims to provide a wear-resistant bottle mouth structure of a basalt fiber hydrogen storage bottle to solve many problems such as poor connectivity between a metal BOSS structure and a plastic liner, easy relative displacement between the liner-BOSS-carbon fiber composite material, large deformation due to different molding shrinkage rates of the liner-BOSS, and easy peeling of the liner-carbon fiber composite material layer under thermal cycle changes.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-wear bottle mouth structure of a basalt fiber hydrogen storage bottle, including a bottle mouth wall, the outside of the bottle mouth wall is provided with an external thread, the inside is provided with an internal thread, a sealing groove is dug on the top of the bottle mouth wall, a positioning groove is dug on the bottom of the bottle mouth wall, a fixing through hole and a fiber fixing block are provided at the lower part of the bottle mouth structure, a fixing groove is provided on the periphery of the fixing through hole, and a stop ring is provided on the outer outer surface of the external thread.

[0007] In the above-mentioned wear-resistant bottle mouth structure of a basalt fiber hydrogen storage bottle, the internal thread is a pipe thread for gas sealing, which is mainly used to connect the bottle valve. The external thread is designed as a pipe thread, which can be used for bottle valve connection, basalt fiber winding and fixing, bottle mouth plastic post-processing and fixing support, etc. The positioning groove is an annular groove adjacent to the internal thread, which is mainly used for positioning and connecting the metal plastic of the bottle mouth. The number of annular grooves is preferably designed to be 2, upper and lower, and sufficient axial distance is left in the middle to accommodate at least two sealing rings. The number of annular grooves is designed to be multiple according to the position of the sealing ring at the bottle mouth plastic, and the position of the annular groove should avoid the plane where the sealing position of the sealing ring at the bottle mouth plastic of the inner liner is located. The basalt fiber composite material anti-retraction structure is mainly used to prevent axial peeling between the inner liner and the carbon fiber composite material layer during the curing process after the carbon fiber composite material is wound.

[0008] As a further improvement of the present application, an outer side of the bottle mouth wall is provided with an external thread, and an inner side is provided with an internal thread.

[0009] As a further improvement of the present application, a sealing groove is provided on the upper part of the bottle mouth wall, and a positioning groove is provided on the lower part.

[0010] As another improvement of the present application, the fixing through holes and the fiber auxiliary fixing blocks are arranged at the lower part of the entire structure.

[0011] In summary, this application has the following beneficial effects:

[0012] 1. Sealed and leak-proof; the internal thread is a pipe thread used for gas sealing, mainly used to connect bottle valves, and the external thread is designed as a pipe thread, which can be used for bottle valve connection, carbon fiber winding and fixation, bottle mouth plastic post-processing and fixing support, etc.

[0013] 2. Firm and stable; the fiber auxiliary fixing block and auxiliary fixing through hole fix the entire bottle mouth structure on the inner liner of the hydrogen storage bottle.

[0014] 3. The anti-rotation is controllable: A anti-rotation ring is installed on the outer periphery of the bottle mouth wall, and the anti-rotation control on the bottle mouth wall can be achieved through the external thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 This is a top view of this application;

[0017] Figure 3 This is a cross-sectional view of this application.

[0018] Description of the numbers in the figure:

[0019] 1. Bottle mouth wall; 2. External thread; 3. Internal thread; 4. Sealing groove; 5. Positioning groove; 6. Fixed through hole; 7. Fixed groove; 8. Fiber auxiliary fixing block; 9. Stop ring. DETAILED DESCRIPTION

[0020] An implementation of the present application is described in detail below with reference to the accompanying drawings.

[0021] Implementation method:

[0022] Figure 1-3 The present invention shows an anti-wear bottle mouth structure of a basalt fiber hydrogen storage bottle, including a bottle mouth wall 1, with an external thread 2 on the outside of the bottle mouth wall 1 and an internal thread 3 on the inside. A sealing groove 4 is dug on the top of the bottle mouth wall 1, and a positioning groove 5 is dug on the bottom of the bottle mouth wall 1. A fixing through hole 6 and a fiber fixing block 8 are provided at the lower part of the bottle mouth structure. A fixing groove 7 is provided on the outer periphery of the fixing through hole 6, and a stop ring 9 is provided on the outer sleeve of the external thread 2.

[0023] In the above-mentioned wear-resistant bottle mouth structure of the basalt fiber hydrogen storage bottle, when in use, the entire bottle mouth structure is installed above the inner liner of the hydrogen storage bottle. The sealing groove 4 is a structure designed at the end surface of the bottle mouth for installing a sealing ring. The design size is designed according to the national standard for the size of the groove of the O-shaped rubber sealing ring. The sealing ring installed at the sealing groove 4 can be used as a guarantee for the high-pressure gas sealing at the bottle mouth of the gas cylinder. The internal thread 3 is a pipe thread for gas sealing, which is mainly used to connect the bottle valve. The external thread 2 of the present invention is designed as a pipe thread, which can be used for bottle valve connection, gas cylinder fixation during carbon fiber winding, bottle mouth plastic post-processing fixed support, etc. The fixed through hole 6, the fixed groove 7, and the fiber auxiliary fixing block 8 at the bottom of the bottle mouth structure are all used to fix the inner liner and the fiber.

[0024] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any changes made within the knowledge of those skilled in the art without departing from the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A wear-resistant bottle mouth structure of a basalt fiber hydrogen storage bottle, characterized in that: The invention comprises a bottle mouth wall (1), wherein the bottle mouth wall (1) is provided with an external thread (2) on the outside and an internal thread (3) on the inside, a sealing groove (4) is dug on the top of the bottle mouth wall (1), a positioning groove (5) is dug on the bottom of the bottle mouth wall (1), a fixing through hole (6) and a fiber fixing block (8) are provided at the lower part of the bottle mouth structure, a fixing groove (7) is provided on the outer periphery of the fixing through hole (6), and a stop ring (9) is provided on the outer sleeve of the external thread (2).

2. The wear-resistant bottle mouth structure of a basalt fiber hydrogen storage bottle according to claim 1, characterized in that: The outer side of the bottle mouth wall (1) is provided with an external thread (2), and the inner side is provided with an internal thread (3).

3. The wear-resistant bottle mouth structure of a basalt fiber hydrogen storage bottle according to claim 1, characterized in that: The upper part of the bottle mouth wall (1) is provided with a sealing groove (4), and the lower part is provided with a positioning groove (5).

4. The wear-resistant bottle mouth structure of a basalt fiber hydrogen storage bottle according to claim 3, characterized in that: The fixing through hole (6) and the fiber auxiliary fixing block (8) are arranged at the lower part of the entire structure.

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