Inflation device for winding hydrogen storage bottle and hydrogen storage winding system

Abstract

The utility model relates to the technical field of hydrogen storage cylinders, and discloses an inflating device for winding a hydrogen storage cylinder and a hydrogen storage winding system. In the inflating device for winding the hydrogen storage bottle, an inflating channel is arranged in a rotating shaft; the rotating joint is arranged at the first end of the rotating shaft and forms running fit; the inflation connector is arranged at the second end of the rotating shaft. The inflation connector is used for being connected with a hydrogen storage bottle. In the hydrogen storage winding system, the inflating device for winding the hydrogen storage bottle is connected with the hydrogen storage bottle on the winding equipment and is used for keeping the pressure in the hydrogen storage bottle. According to the technical scheme, the inflating device for winding the hydrogen storage bottle is connected with the hydrogen storage bottle, so that the air pressure in the hydrogen storage bottle during working can be stabilized, and the air pressure in the bottle from the end of working to the next working procedure can be kept unchanged; and repeated inflation is not needed, so that the working efficiency is improved. According to the hydrogen storage bottle, certain pressure in the bottle can be kept in the winding work, the air pressure in the bottle can be kept unchanged after the winding work is finished, the hydrogen storage bottle can be normally wound, and a better winding effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage bottles, in particular to an inflation device for winding a hydrogen storage bottle and a hydrogen storage winding system. Background Art

[0002] Carbon fiber-wrapped metal-liner composite high-pressure hydrogen storage vessels are a composite of metal and non-metallic materials. They feature a metal liner wrapped with various fibers that are then cured to form a reinforced structure. To further reduce the vessel's weight, increase the system's hydrogen storage density, and lower costs, the metal liner is replaced with a plastic liner. The remaining structure and manufacturing process are essentially the same as those for metal-lined composite pressure vessels, resulting in the development of a fourth-generation all-composite plastic high-pressure hydrogen storage vessel. The fiber-wound layer can be made of carbon fiber, aramid fiber, or glass fiber.

[0003] Specifically, in the hydrogen storage container molding process, the molding of fully wound composite material hydrogen storage containers belongs to the field of composite material molding technology. The product is formed by the winding process and then enters the curing furnace for curing and molding into the final product. The winding process of hydrogen storage containers is divided into two types according to the difference in the form of raw materials used: wet winding process and dry winding process. The raw material used in the wet winding process is carbon fiber tow. The tow is first fully impregnated with resin in the impregnation device, and then directly wound onto the core mold through the wire nozzle under tension control. The raw material used in the dry winding process is prepreg yarn or prepreg narrow tape. The prepreg yarn or prepreg narrow tape is softened to a viscous state by heating the resin on the winding machine, and then wound onto the core mold.

[0004] Type IV hydrogen storage bottles use a plastic liner wrapped with carbon fiber. Because the carbon fibers must be subjected to a certain amount of tension during the winding process, and plastic is relatively soft, the liner can easily deform due to the tension, preventing it from achieving the desired effect. To address this issue, the liner is inflated with a certain amount of air pressure during the winding process to meet the required forming requirements.

[0005] In the prior art, the current inflation device needs to be inflated multiple times, which not only consumes manpower, but also wastes time and has low production efficiency. Utility Model Content

[0006] The utility model provides an inflation device for winding a hydrogen storage bottle and a hydrogen storage winding system, so as to solve the above-mentioned technical problem in the prior art that the inner liner needs to be inflated multiple times.

[0007] According to a first aspect of the present utility model, an embodiment provides an inflator for winding a hydrogen storage bottle, comprising:

[0008] A rotating shaft with an internal inflation channel;

[0009] a rotary joint, provided at the first end of the rotary shaft and forming a rotational fit; and

[0010] An air charging connector is provided at the second end of the rotating shaft; the air charging connector is used to connect to the hydrogen storage bottle.

[0011] Preferably, the rotary joint comprises:

[0012] A first joint is provided at the end of the first end of the rotating shaft; the first end of the first joint is inserted into the rotating shaft and communicates with the inflation channel; and

[0013] The rotary joint body is connected to the second end of the first joint.

[0014] Preferably, a connecting flange is provided on the first joint, and the connecting flange is connected to the end portion of the first end of the rotating shaft; and a sealing ring is provided on the portion of the first joint inserted into the rotating shaft.

[0015] Preferably, the rotating shaft is configured as a stepped shaft; the first stepped outer shell is provided with a first flange, and a bearing is provided between the first flange and the first step; the second stepped outer shell is provided with a second flange, and a bearing is provided between the second flange and the second step.

[0016] Preferably, the hydrogen storage bottle winding and inflating device comprises:

[0017] A frame, wherein the first flange and the second flange are arranged on the frame.

[0018] Preferably, a second joint is provided at the second end of the rotating shaft; the first end of the second joint is inserted into the rotating shaft and connected to the inflation channel, and the second end is connected to the inflation joint; a sealing ring is provided on the part of the second joint inserted into the rotating shaft.

[0019] Preferably, a third flange is provided on the outer sleeve of the second joint, and an avoidance channel for the second joint to pass through is opened at the center of the third flange.

[0020] Preferably, the first end of the third flange is connected to the end surface of the second end of the rotating shaft, and the second end is provided with a chuck; a mounting channel is provided at the center of the chuck, and the inflation joint is provided in the mounting channel.

[0021] Preferably, the inflation connector is a quick-change connector; the quick-change connector is used to quickly open and close the inflation channel when inflating the hydrogen storage bottle; the quick-change connector includes:

[0022] a first quick-change connector body; and

[0023] The second quick-change connector body is matched with the first quick-change connector body.

[0024] According to a second aspect of the present invention, an embodiment provides a hydrogen storage winding system, comprising: a winding device; the hydrogen storage winding system further comprises:

[0025] The hydrogen storage bottle winding and inflating device as described in any one of the above items;

[0026] The hydrogen storage bottle winding and inflation device is connected to the hydrogen storage bottle on the winding equipment to maintain the pressure in the hydrogen storage bottle.

[0027] In the technical solution of this utility model, the hydrogen storage bottle is connected to the hydrogen storage bottle by the inflator for winding. This can not only stabilize the air pressure in the hydrogen storage bottle during operation, but also keep the air pressure in the bottle unchanged from the end of the work to the next process. This eliminates the need for multiple inflations, thereby improving work efficiency. The hydrogen storage bottle can maintain a certain pressure in the bottle during the winding process and also keep the air pressure unchanged after the winding process is completed. The hydrogen storage bottle can be wound normally and achieve better winding results. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A half-section schematic diagram of an inflation device for winding a hydrogen storage bottle in an embodiment;

[0029] Figure 2 is a front view schematic diagram of an inflation device for wrapping a hydrogen storage bottle in an embodiment;

[0030] Figure 3 yes Figure 2 A half-section diagram of

[0031] Figure 4 yes Figure 2 Schematic diagram of the structure.

[0032] Reference numerals:

[0033] 1-rotating joint body; 2-first joint; 3-rotating joint; 4-rotating axis; 5-first flange; 6-second flange; 7-third flange; 8-chuck flange; 9-chuck; 10-pipe connection; 11-second quick-change joint body; 12-first quick-change joint body; 13-inflatable joint; 14-second joint; 15-mounting bracket. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] In order to help those skilled in the art better understand the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0036] It should be noted that the terms "first," "second," and the like in the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0037] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be intervening elements. Moreover, in the present invention, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element through a third element.

[0038] Example 1

[0039] Please refer to Figure 1-Figure 4 This embodiment provides a hydrogen storage bottle winding inflation device, comprising: a rotating shaft 4, a rotating joint 3 and an inflation joint 13. An inflation channel is provided in the rotating shaft 4, and the inflation channel is used for gas circulation. The rotating joint 3 is provided at the first end of the rotating shaft 4 and forms a rotational fit. The rotating joint 3 is a movable joint. The first end of the rotating joint 3 is used to connect to the gas source, and the second end is connected to the rotating shaft 4. While ensuring a fixed connection to the gas source, it can also ensure that the rotation of the rotating shaft 4 does not interfere with the connection to the gas source at the first end. The rotating joint 3 belongs to the existing technology and can be obtained commercially. The inflation joint 13 is provided at the second end of the rotating shaft 4; the inflation joint 13 is used to connect to the hydrogen storage bottle so as to inflate the hydrogen storage bottle.

[0040] The utility model relates to a hydrogen storage bottle winding and inflation device. The rotary joint 3 is connected to the gas source. The gas flows in the inflation channel and is inflated outward through the inflation joint 13, specifically into the hydrogen storage bottle. This can keep the pressure in the hydrogen storage bottle stable. The design of the rotating shaft 4 and the rotary joint 3 ensures that the rotating shaft 4 will not interfere with the gas source connection and the hydrogen storage bottle connection during its rotation. Furthermore, when the inner liner of the hydrogen storage bottle is wrapped with carbon fiber on its surface during rotation, the hydrogen storage bottle winding and inflation device can continue to connect to the hydrogen storage bottle, and inflation can be carried out smoothly, which can ensure that the pressure in the hydrogen storage bottle is stable within a certain range.

[0041] like Figure 1 In one embodiment shown, the rotary joint 3 includes: a first joint 2 and a rotary joint body 1. The first joint 2 is disposed at the end of the first end of the rotary shaft 4; the first end of the first joint 2 is inserted into the rotary shaft 4 and communicates with the inflation passage. The rotary joint body 1 is connected to the second end of the first joint 2, preferably, the end of the rotary joint body 1 is inserted into the second end of the first joint 2 to achieve a threaded connection. The rotary joint body 1 is provided with an elbow, which is connected to the air source through the elbow; the design of the elbow creates a right-angle bend in the air passage within the rotary joint body 1.

[0042] like Figure 1 In one embodiment shown, the first joint 2 is provided with a connecting flange that connects to the end of the first end of the rotating shaft 4. A sealing ring is sleeved over the portion of the first joint 2 that inserts into the rotating shaft 4. The connecting flange preferably abuts the end of the first end of the rotating shaft 4 and is preferably integrally formed with the first joint 2. Two sealing rings are preferably provided to improve airtightness. In one example, the sealing ring can be an O-ring.

[0043] like Figure 1 In one embodiment shown, the rotating shaft 4 is configured as a stepped shaft; the stepped shaft has a first step, a second step, and a third step. The first step is provided with a first flange 5 on the outer sleeve, and a bearing is provided between the first flange 5 and the first step; the second step is provided with a second flange 6 on the outer sleeve, and a bearing is provided between the second flange 6 and the second step. Preferably, the first step is close to the inflation joint 13, and the third step is close to the rotating joint 3. The radii of the first step, the second step, and the third step are preferably increased in sequence. That is, it is ensured that the third step of the rotating shaft 4 is thick enough, and its strength and rigidity are sufficient for the rotating shaft 4 to dock with the hydrogen storage bottle.

[0044] In one embodiment, the hydrogen storage bottle winding and inflating device further includes a frame. A first flange 5 and a second flange 6 are disposed on the frame. In addition, a mounting bracket 15 is disposed outside the rotary joint 3.

[0045] like Figure 1In one embodiment shown, a second connector 14 is provided at the second end of the rotating shaft 4. The first end of the second connector 14 is inserted into the rotating shaft 4 and communicates with the inflation channel, while the second end is connected to the inflation connector 13. The portion of the second connector 14 inserted into the rotating shaft 4 is covered with a sealing ring. Preferably, two sealing rings are provided to improve airtightness. In one example, the sealing ring can be provided as an O-ring. The second connector 14 corresponds to the first connector 2, and the length of the first connector 2 is shorter than that of the second connector 14. The first connector 2 is preferably short-circuited.

[0046] like Figure 1 、 Figure 4 In one embodiment shown, the second joint 14 is provided with a third flange 7 on its outer sleeve, and an avoidance channel for the second joint 14 to pass through is opened in the center of the third flange 7. Preferably, the first end of the third flange 7 is connected to the end face of the second end of the rotating shaft 4, and the second end is provided with a chuck 9; the center of the chuck 9 is provided with a mounting channel, and the inflation joint 13 is provided in the mounting channel. Among them, the third flange 7 is preferably set as a frustum, the small end of the frustum is connected to the second end of the rotating shaft 4, and the large end of the frustum is connected to the chuck 9. The chuck 9 is used to clamp and fix the hydrogen storage bottle or the connecting pipe 10 connected to the hydrogen storage bottle. A chuck flange 8 is also connected to one side of the chuck 9. The chuck flange 8 is designed to facilitate its connection with the large end of the frustum. The chuck 9 belongs to the prior art and can be obtained commercially. The chuck 9 is preferably a three-jaw chuck, and its jaws can clamp the workpiece.

[0047] like Figure 1-Figure 3 In one embodiment shown, the inflation connector 13 is configured as a quick-change connector; the quick-change connector is used to quickly open and close the inflation channel when inflating the hydrogen storage bottle. The quick-change connector can quickly connect to the interior of the hydrogen storage bottle, inflate the interior of the bottle to a certain air pressure and maintain it until the next process without the need for re-inflation. In one example, the quick-change connector includes: a first quick-change connector body 12 and a second quick-change connector body 11; the second quick-change connector body 11 cooperates with the first quick-change connector body 12, preferably docking; in this example, the first quick-change connector body 12 can be provided on the second connector 14, and the second quick-change connector body 11 can be provided on the hydrogen storage bottle or the pipe 10 (the pipe 10 can be connected to the bottle mouth of the hydrogen storage bottle, and the pipe 10 is clamped and fixed by the chuck 9); it can be seen that the first quick-change connector body 12 is provided on the rotating shaft side, and the second quick-change connector body 11 is provided on the hydrogen storage bottle side. Among them, when inflating the hydrogen storage bottle, the first quick-change connector body 12 can be combined with the second quick-change connector body 11 to form a quick-change connector. Preferably, the first quick-change connector body 12 is configured as a quick-insert connector, and the second quick-change connector body 11 is configured as a quick-connect connector, and the two are used in pairs to form a quick-change connector (ie, the inflation connector 13).

[0048] The hydrogen storage bottle winding and inflation device of the present invention is connected to the rotating shaft 4 via a rotary joint 3 during the winding process. A quick-connect connector is connected to the hydrogen storage bottle and is connected to the second end of the rotating shaft 4. A gas source pressurizes the hydrogen storage bottle through the rotary joint 3, maintaining a stable internal pressure during the winding process. The quick-connect connector at the end of the hydrogen storage bottle ensures that the pressure inside the bottle is maintained even after the hydrogen storage bottle is disconnected from the rotating shaft 4. This allows the hydrogen storage bottle to maintain a certain pressure during the winding process and also maintains a constant pressure after the winding process is completed, achieving a better winding effect.

[0049] Example 2

[0050] This embodiment provides a hydrogen storage winding system, including: a winding device; the hydrogen storage winding system also includes a hydrogen storage bottle winding and inflation device as in any one of the above embodiments; wherein the hydrogen storage bottle winding and inflation device is connected to the hydrogen storage bottle on the winding device to maintain the pressure inside the hydrogen storage bottle.

[0051] In one embodiment, the hydrogen storage bottle needs to maintain a stable internal pressure during the winding process. The hydrogen storage winding system of the utility model uses a hydrogen storage bottle winding inflation device. When the hydrogen storage winding system is winding the hydrogen storage bottle (liner), the hydrogen storage bottle winding inflation device remains connected to the hydrogen storage bottle (liner), and the pressure in the hydrogen storage bottle (liner) is controlled within a certain range. The liner will not be affected by the tension of the carbon fibers during winding and will not deform, ensuring that the winding process and the finished product achieve the desired effect.

[0052] In the hydrogen storage winding system of the utility model, the air pipe in the hydrogen storage bottle winding and charging device is connected to the inside of the hydrogen storage bottle through a rotary joint, and then pressurization is performed; when the winding equipment is in winding operation, the hydrogen storage bottle winding and charging device controls the stability of the air pressure in the bottle, and the presence of the second quick-change connector body (installed on the hydrogen storage bottle) ensures that after the winding is completed, the hydrogen storage bottle can maintain the corresponding pressure after being removed from the workbench.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hydrogen storage bottle winding and inflating device, characterized in that: include: A rotating shaft with an internal inflation channel; a rotary joint, provided at the first end of the rotary shaft and forming a rotational fit; and An air charging connector is provided at the second end of the rotating shaft; the air charging connector is used to connect to the hydrogen storage bottle.

2. The hydrogen storage bottle winding and inflating device according to claim 1, characterized in that: The rotary joint comprises: A first joint is provided at the end of the first end of the rotating shaft; the first end of the first joint is inserted into the rotating shaft and communicates with the inflation channel; and The rotary joint body is connected to the second end of the first joint.

3. The hydrogen storage bottle winding and inflating device according to claim 2, characterized in that: The first joint is provided with a connecting flange, which is connected to the end of the first end of the rotating shaft; and a sealing ring is provided on the portion of the first joint inserted into the rotating shaft.

4. The hydrogen storage bottle winding and inflating device according to claim 1, characterized in that: The rotating shaft is configured as a stepped shaft; the first stepped outer shell is provided with a first flange, and a bearing is provided between the first flange and the first step; the second stepped outer shell is provided with a second flange, and a bearing is provided between the second flange and the second step.

5. The hydrogen storage bottle winding and inflating device according to claim 4, characterized in that: The hydrogen storage bottle winding and inflating device comprises: A frame, wherein the first flange and the second flange are arranged on the frame.

6. The hydrogen storage bottle winding and inflating device according to claim 1, characterized in that: The second end of the rotating shaft is provided with a second joint; the first end of the second joint is inserted into the rotating shaft and connected to the inflation channel, and the second end is connected to the inflation joint; the part of the second joint inserted into the rotating shaft is sleeved with a sealing ring.

7. The hydrogen storage bottle winding and inflating device according to claim 6, characterized in that: A third flange is provided on the outer sleeve of the second joint, and an avoidance passage for the second joint to pass through is opened at the center of the third flange.

8. The hydrogen storage bottle winding and inflating device according to claim 7, characterized in that: The first end of the third flange is connected to the end surface of the second end of the rotating shaft, and the second end is provided with a chuck; a mounting channel is provided in the center of the chuck, and the inflation joint is provided in the mounting channel.

9. The hydrogen storage bottle winding and inflating device according to any one of claims 1 to 8, characterized in that: The charging connector is a quick-change connector; the quick-change connector is used to quickly open and close the charging channel when charging the hydrogen storage bottle; the quick-change connector includes: a first quick-change connector body; and The second quick-change connector body is matched with the first quick-change connector body.

10. A hydrogen storage winding system comprising: Winding equipment; characterized in that the hydrogen storage winding system also includes: The hydrogen storage bottle winding and inflating device according to any one of claims 1 to 9; The hydrogen storage bottle winding and inflation device is connected to the hydrogen storage bottle on the winding equipment to maintain the pressure in the hydrogen storage bottle.

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