An integrated gas storage tank

Abstract

The utility model relates to the technical field of gas storage tanks, and specifically to an integrated gas storage tank, comprising a metal cylinder without welds, and two seals integrally formed with the metal cylinder and seamlessly connected; the metal cylinder and / or the seals are provided with a connecting nozzle connected to the inner cavity of the metal cylinder; the integrated gas storage tank provided by the utility model has a simple structure and good pressure resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of gas storage tanks, in particular to an integrated gas storage tank. Background Art

[0002] In modern engineering applications, gas tanks are important components for storing compressed gas. Their structural strength and pressure resistance are crucial to the safe operation of the entire system. Usually, these gas tanks are composed of two parts: a seal and a cylinder, which are fixed together by welding. However, multiple welds are inevitably produced during the welding process, which not only creates potential weaknesses in the material, but also the seal area often bears the greatest force when the product is subjected to internal pressure.

[0003] Since the seal directly faces the full load of the internal pressure, its structural design must be able to effectively disperse stress and avoid material fatigue or failure caused by stress concentration. However, the thermal effects of welding itself will further complicate the problem. High-temperature welding operations not only change the microstructure of the material near the weld and form a heat-affected zone, but may also cause the mechanical properties of the material to deteriorate, such as reduced strength and increased brittleness. In addition, if the post-weld cooling treatment is not done properly, residual stress that is not conducive to pressure resistance may be introduced; therefore, when the gas tank formed by welding the seal and the cylinder is used to store compressed gas, its pressure resistance is low and the product quality is difficult to guarantee. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide an integrated gas storage tank with a simple structure and good pressure resistance.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides an integrated gas storage tank, including a metal cylinder without welds, and two seals integrally formed with the metal cylinder and seamlessly connected;

[0006] The metal cylinder body and / or the seal are provided with a connecting nozzle which is in communication with the inner cavity of the metal cylinder body.

[0007] In one embodiment of the present invention, the metal cylinder body and / or the seal includes an integrally formed avoidance portion.

[0008] In an embodiment of the present invention, at least one of the avoidance portions is in the shape of a body of revolution.

[0009] In an embodiment of the present invention, the metal cylinder is an integral metal cylinder formed by spinning and / or casting.

[0010] In an embodiment of the present invention, the two seals are respectively located at two ends of the metal cylinder and are seamlessly connected to the metal cylinder, and at least one of the seals is formed at the end of the metal cylinder by spin forming.

[0011] In an embodiment of the present invention, at least one of the seals has an overall shape of a bullet or a gourd.

[0012] In an embodiment of the present invention, the connecting nozzle and the sealing opening are integrally spun or cast.

[0013] In an embodiment of the present invention, the connecting nozzle is connected to the sealing opening by welding.

[0014] In one embodiment of the present invention, the metal cylinder is a cast metal cylinder, and one end of the metal cylinder has an integrally formed and seamlessly connected seal.

[0015] In an embodiment of the present invention, a connecting structure and / or a supporting foot is provided on the metal cylinder body and / or the seal.

[0016] In summary, the one-piece gas storage tank of the utility model is realized through a seamless molding process. There are no welding seams between the metal cylinder body itself and between the metal cylinder body and the seal, which ensures the continuity and uniformity of the material, thereby improving the pressure resistance and overall strength; reducing the risk of welding defects, such as lack of fusion and cracks; this case can reduce the possibility of leakage; compared with welded gas storage tanks, the one-piece gas storage tank does not need to worry about changes in material properties caused by welding, and maintains superior corrosion resistance and fatigue resistance; the structural integrity and sealing of the one-piece gas storage tank of this case provide additional protection for safety, especially when storing and transporting high-pressure and flammable gases, it has higher safety, reliability and long-term stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a gas storage tank formed by welding connection in the prior art;

[0019] Figure 2 This is a schematic diagram of the structure of a gas storage tank in one embodiment of the utility model;

[0020] Figure 3This is a schematic diagram of the structure of a gas storage tank in another embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a gas storage tank in another embodiment of the utility model;

[0022] Explanation of component numbers: metal cylinder body 1, sealing mouth 2, connecting nozzle 3, welding seam 10, avoidance part 4. DETAILED DESCRIPTION

[0023] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0024] See also Figures 1 to 4 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0025] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.

[0026] In this case, spin forming is an efficient metal processing technology that creates continuous plastic deformation by applying pressure on the rotating blank and gradually forms the required rotating body parts. Unlike traditional stamping processes, spin forming does not require complex mold settings, and usually only requires a simple core mold, which greatly simplifies the structure of the tool and shortens the production preparation time. During the spinning process, the blank material is fixed on the core mold and driven to rotate by the spinning machine. As the material rotates, the spinning wheel applies pressure to the blank to cause it to deform plastically. Since the workpiece material is located between the spinning wheel and the core mold, it will be subjected to three-dimensional compressive stress. This local plastic deformation has a strain dispersion effect, allowing the material to give full play to its plasticity and achieve a wide range of shape changes. Many materials that are difficult to process by traditional stamping methods can be easily processed by spin forming. During the spin forming process, the material grains will be refined and elongated along the generatrix direction of the workpiece. This rearrangement and refinement of the grains significantly improves the yield strength, ultimate strength and hardness of the finished product, thereby improving the mechanical properties of the parts. Therefore, spin forming not only improves material utilization and reduces product cost, but also enhances the overall performance of parts by changing the microstructure of the material.

[0027] like Figure 1 As shown, a gas tank is a type of pressure vessel, usually used to store compressed gas or liquid. During the design and manufacturing process, it is crucial to ensure its pressure resistance to ensure safe operation and long-term reliability. Usually, these gas cylinders are composed of a seal 2 and a cylinder, which are fixed together by welding. The weld seams may become potential weaknesses, especially when subjected to high pressure. Stress concentration may occur at these seams, thereby affecting the structural strength and pressure resistance of the gas tank; since the gas tank formed by welding relies on the welding quality to ensure the sealing, if there are defects in the welding process, such as lack of fusion, lack of penetration or undercut, it may cause gas leakage and increase safety hazards; the welding process may cause thermal effects on the material and change the material properties near the weld, which may reduce the corrosion resistance of the gas tank in specific media; at the same time, the service life of the welded gas tank may be affected by the welding quality and the use environment, resulting in a lower service life.

[0028] See also Figure 2 The utility model provides an integrated gas storage tank, comprising a metal cylinder body 1 without welds, and two sealing ports 2 integrally formed with the metal cylinder body 1 and seamlessly connected;

[0029] The metal cylinder body 1 and / or the sealing opening 2 are provided with a connecting nozzle 3 which is in communication with the inner cavity of the metal cylinder body 1 .

[0030] It should be noted that in this case, the one-piece gas tank eliminates the potential weaknesses and leakage risks caused by welding. The gas tank is formed through precision manufacturing processes, such as deep drawing, stamping, spinning, casting and other processes, to achieve seamless connection between the metal cylinder 1 and the two seals 2. Such a structure not only enhances the overall strength and pressure resistance of the container, but also significantly improves the sealing and corrosion resistance due to the absence of welding seams 10. For example, the metal cylinder 1 of the one-piece gas tank and the seal 2 at one end thereof are cast, while the seal 2 and / or the connecting nozzle 3 at the other end of the one-piece gas tank can be formed by spinning, thereby realizing the one-piece forming of the one-piece gas tank. At the same time, the metal cylinder 1 of the one-piece gas tank and the seals 2 at both ends can also be formed by spinning. The connection nozzle 3 of the integrated gas storage tank in this case can be formed integrally with the metal cylinder body 1 and / or the seal 2, or can be welded to the metal cylinder body 1 and / or the seal 2. The integrated structure of the integrated gas storage tank may not include the integrated forming of the connection nozzle 3; the connection nozzle 3 is a key component to realize the connection between its inner cavity and other system parts. The connection nozzle 3 is usually designed to be integrated with the metal cylinder body 1 or the seal 2 to ensure the pressure resistance and sealing performance of the connection. The connection nozzle 3 can be a threaded connection, a flange connection or other quick connector forms to achieve fast, safe and reliable pipeline connection in different applications. In addition, the shape and size of the integrated gas storage tank can be customized as needed to adapt to specific installation space and functional requirements. Due to its optimized design and manufacturing process, the integrated gas storage tank can maintain more stable performance and longer service life under periodic pressure changes and long-term use; in terms of material selection, the integrated gas storage tank is usually made of high-quality metal materials, such as stainless steel, titanium alloy, carbon steel or aluminum alloy, etc. These materials not only have good mechanical properties, but also can adapt to different environmental conditions, such as corrosion resistance or high temperature resistance.

[0031] Compared with welded gas tanks, the one-piece gas tank in this case has the following advantages, which are mainly reflected in structural integrity, sealing, corrosion resistance, service life and cost-effectiveness; the one-piece gas tank is made by deep drawing or spinning and other processes, without welding seams 10, so the continuity and uniformity of the material are maintained on the entire metal cylinder 1; this improves the overall strength and pressure resistance of the container, and reduces stress concentration and potential structural weaknesses caused by welding; welded gas tanks rely on welding quality to ensure sealing, and there may be welding defects such as lack of fusion or cracks, resulting in leakage risks, while one-piece gas tanks naturally provide higher sealing due to seamless connections, reducing the possibility of leakage. The heat-affected zone generated during the welding process may change the properties of the material and reduce corrosion resistance. One-piece gas tanks do not have this problem because their materials and properties remain consistent throughout the container, making them particularly suitable for storing corrosive gases or using them in harsh environments; since material and structural discontinuities caused by welding are avoided, one-piece gas tanks generally have a longer service life. They are better able to withstand pressure cycles and mechanical wear, reducing failures due to fatigue; although the initial manufacturing cost of one-piece gas tanks may be higher than that of welded gas tanks, they may be more cost-effective in the long run due to their low maintenance frequency and long service life. In addition, one-piece gas tanks are generally more productive because they do not require complex on-site welding operations; in terms of appearance design, one-piece gas tanks have a smoother and neater appearance because they have no weld seams 10, which is an important advantage for some applications that require product appearance; due to the structural integrity and high sealing of one-piece gas tanks, they provide greater security in terms of safety, especially in the storage and transportation of high-pressure and flammable gases. In summary, one-piece gas tanks have higher advantages in terms of safety, reliability and long-term performance.

[0032] See also Figure 3-4 As an optional embodiment of the present invention, the metal cylinder body 1 and / or the seal 2 includes an integrally formed avoidance portion 4.

[0033] It should be noted that the avoidance portion 4 can provide additional space, making it easier to install connectors such as valves, sensors, etc. At the same time, the avoidance portion 4 also provides more operating space for future inspection and maintenance, allowing maintenance personnel to perform maintenance work more conveniently; through a reasonably designed avoidance portion 4, the amount of material used can be reduced without sacrificing strength and safety, thereby reducing the weight of the entire gas storage tank.

[0034] See also Figure 3-4 As an optional embodiment of the present invention, at least one of the avoidance portions 4 is in the shape of a rotating body.

[0035] It should be noted that the avoidance portion 4 is provided with one or more. Generally, the avoidance portion 4 can be formed by casting or by spin forming. It should be understood that the avoidance portion 4 formed by spin forming is generally in the shape of a body of revolution.

[0036] See also Figure 2-4 As an optional embodiment of the present case, the metal barrel 1 is an integral metal barrel 1 formed by casting and / or spin forming, and the integral structure of the metal barrel 1 can be achieved in a variety of ways.

[0037] See also Figure 2-4 As an optional embodiment of the present case, the two seals 2 are respectively located at the two ends of the metal cylinder 1 and are seamlessly connected to the metal cylinder 1, and at least one of the seals 2 is formed at the end of the metal cylinder 1 by spin forming.

[0038] It should be noted that the seals 2 at both ends of the integrated gas storage tank can be formed by spinning at one end or both ends, or the seal 2 at one end can be integrally cast with the metal cylinder body 1 and the other end can be spun. There are many ways to choose.

[0039] See also Figure 3-4 As an optional embodiment of the present invention, at least one of the seals 2 has an overall shape of a bullet or a gourd, so as to avoid installing other structures of the integrated gas storage tank.

[0040] It should be noted that the design shape of the seal 2 will affect the pressure resistance of the gas tank. The cross-section of the seal 2 is circular. The overall shape of the seal 2, whether it is a bullet shape or a gourd shape, usually has better pressure resistance than the flat welded seal 2, because the circular structure can evenly disperse the pressure and reduce the risk of stress concentration. At the same time, the circular seal 2 can provide a more uniform strength distribution, thereby improving the overall stability of the gas tank.

[0041] See also Figure 2-4 As an optional embodiment of the present invention, the connecting nozzle 3 and the sealing mouth 2 are integrally spun, cast or extruded, thereby further improving the structural performance of the integrated gas storage tank.

[0042] See also Figure 2 As an optional embodiment of the present case different from the above-mentioned embodiment, the connecting nozzle 3 is welded to the sealing mouth 2, so as to reduce the difficulty of spin forming at the connecting nozzle 3.

[0043] See also Figure 2-4 As an optional embodiment of the present case, the metal cylinder body 1 is a cast metal cylinder body 1, and one end of the metal cylinder body 1 has an integrally formed and seamlessly connected seal 2.

[0044] It should be noted that the one-piece gas tank, in which the metal cylinder 1 and the seal 2 at one end are cast, and the seal 2 at the other end is spin-formed, has many advantages; specifically as follows: casting can produce parts with complex shapes and precise dimensions, which is crucial to ensuring the structural integrity and sealing of the gas tank. The cast head and cylinder can withstand higher pressures and are suitable for the storage of compressed air or gas. Spinning is a method of improving the mechanical properties of metals through rotational processing, which can enhance the pressure resistance of the gas tank seal 2, thereby improving the safety of the gas tank; compared with gas tanks manufactured entirely by welding or other methods, the combination of casting and spin forming can reduce the use of materials while ensuring performance, thereby reducing manufacturing costs; at the same time, casting and spin forming are both mature process technologies, and their combination can simplify the production process and improve production efficiency, and both casting and spin forming can be achieved through standardized production processes, which helps to ensure product consistency and quality control; the specific parameters of casting and spin forming can also be adjusted according to different application requirements, so that the gas tank can adapt to different working environments and pressure requirements.

[0045] Furthermore, the seals 2 at both ends are both formed by spin forming. Compared with the metal cylinder body 1 and the seal 2 at one end which are cast, and the seal 2 at the other end which is spin formed, the spin forming process is relatively simple and the cost is low, and the manufactured one-piece gas storage tank is light in weight and easy to transport and install.

[0046] As an optional embodiment of the present case, a connecting structure and / or a supporting foot is provided on the metal cylinder body 1 and / or the seal 2, so as to facilitate the placement of the integrated gas storage tank and improve the convenience of use.

[0047] The integrated gas storage tank provided by the utility model adopts a spinning process at the sealing portion 2, and the material of the metal cylinder body 1 is fused together through spinning to form an integral closed container, thereby reducing the welding seam 10 and improving the compressive strength of the product; at the same time, during the spinning forming, different shapes can be made according to different installation positions, such as a bullet shape and a gourd shape, with a simple shape and low cost.

[0048] The metal cylinder body 1 of the present case is directly spun into shape by the cylinder body. Since the outer circle of the large diameter of the mouth is spun to a small diameter, the material becomes thicker, thereby increasing the strength of the seal 2. At the same time, the shape of the seal 2 formed by mouth spinning can be in a variety of styles to avoid interference in installation, such as bullet shape and gourd shape.

[0049] The integrated air storage tank in this case can be applied to the air storage tank of the automobile air suspension system.

[0050] The utility model also provides a vehicle, and the vehicle comprises the integrated gas storage tank.

[0051] In summary, the utility model effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An integrated gas storage tank, characterized in that: It comprises a metal cylinder without weld seams, and two seals which are integrally formed with the metal cylinder and seamlessly connected; The metal cylinder body and / or the seal are provided with a connecting nozzle which is in communication with the inner cavity of the metal cylinder body; The metal cylinder body and / or the seal comprises an integrally formed avoidance portion.

2. The integrated gas storage tank according to claim 1, characterized in that: At least one of the escape portions is in the shape of a body of revolution.

3. The integrated gas storage tank according to claim 1, characterized in that: The metal cylinder body is an integral metal cylinder body formed by spinning and / or casting.

4. The integrated gas storage tank according to claim 1, characterized in that: The two seals are respectively located at two ends of the metal cylinder and are seamlessly connected to the metal cylinder, and at least one of the seals is formed at the end of the metal cylinder by spin forming.

5. The integrated gas storage tank according to claim 4, characterized in that: At least one of the seals has an overall shape of a bullet or a gourd.

6. The integrated gas storage tank according to claim 1, characterized in that: The connecting nozzle and the sealing end are integrally spun or cast.

7. The integrated gas storage tank according to claim 1, characterized in that: The connecting nozzle is connected to the sealing opening by welding.

8. The integrated gas storage tank according to claim 1, characterized in that: The metal cylinder body is a cast metal cylinder body, and one end of the metal cylinder body has an integrally formed and seamlessly connected seal.

9. The integrated gas storage tank according to claim 1, characterized in that: The metal cylinder body and / or the seal are / is provided with a connecting structure and / or supporting feet.

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