Novel cryogenic pressure vessel shell thinning structure

Abstract

The utility model discloses a novel cryogenic pressure vessel shell thinning structure which comprises a shell and an inner container, and a vacuum interlayer is arranged between the shell and the inner container. A glass fiber reinforced plastic supporting ring plate is mounted at the upper end of the interlayer; a supporting stand column used for fixing the inner container is installed at the lower end of the interlayer. A reinforcing ring is mounted in the interlayer; through the arrangement of the supporting stand column structure, the reinforcing rings and the glass fiber reinforced plastic supporting ring plate, the influence of shell thinning on the cryogenic pressure container can be avoided, so that the aim of light weight of the cryogenic pressure container can be achieved, the aims of energy conservation and emission reduction are achieved, meanwhile, the production cost can be reduced, the lightweight design requirement is met, and the product competitiveness is improved; the device is simple in structure, convenient to operate and worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of cryogenic pressure vessels, and more specifically, to a novel structure for thinning the outer shell of a cryogenic pressure vessel. Background Art

[0002] In order to respond to the country's energy conservation and emission reduction policies, achieve the lightweight design of fixed vacuum-insulated cryogenic pressure vessels (hereinafter referred to as cryogenic pressure vessels), and reduce production costs, a method for thinning the outer shell of cryogenic pressure vessels is explored. The main functions of the outer shell of a cryogenic pressure vessel are as follows: First, it can serve as a support bracket (strap structure) for the inner container; second, it bears the negative pressure after the interlayer is evacuated; third, it bears the weight of the inner container and other components during manufacturing and transportation. If the outer shell is directly thinned on the basis of the existing structure, there will be great safety risks. Therefore, the internal structure of the storage tank must be improved to meet the requirements of the thinned outer shell. For this purpose, we propose a novel structure for thinning the outer shell of a cryogenic pressure vessel. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a novel structure for thinning the outer shell of a cryogenic pressure vessel to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A novel structure for thinning the outer shell of a cryogenic pressure vessel, including an outer shell and an inner container, wherein a vacuum interlayer is provided between the outer shell and the inner container; a fiberglass support ring plate is installed at the upper end of the interlayer; a support column for fixing the inner container is installed at the lower end of the interlayer; and strengthening rings are installed in the interlayer.

[0005] Preferably, a plurality of strengthening rings are provided.

[0006] Preferably, the fiberglass support ring plate is in a ring structure and the fiberglass support ring plate surrounds the outer shell for one circle.

[0007] Advantageous Effects: Compared with the prior art, the advantageous effects of the utility model are as follows: Through the setting of the support column structure, a plurality of strengthening rings, and the fiberglass support ring plate, the influence of the thinned outer shell on the cryogenic pressure vessel can be avoided, so that the lightweight goal of the cryogenic pressure vessel can be achieved, and thus the goal of energy conservation and emission reduction can be achieved. At the same time, the production cost can also be reduced. Brief Description of the Drawings

[0008] Figure 1 It is a schematic diagram of the overall structure of a novel structure for thinning the outer shell of a cryogenic pressure vessel proposed by the utility model.

[0009] In the drawings: 1 - outer shell, 2 - inner container, 3 - fiberglass support ring plate, 4 - support column, 5 - strengthening ring. Detailed Description of the Invention

[0010] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0011] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited to the limitations of the specific embodiments disclosed in the following specification.

[0012] Embodiment

[0013] Referring to the accompanying drawings of the specification, in an embodiment of the present utility model, a novel structure for thinning the outer shell of a cryogenic pressure vessel includes an outer shell 1 and an inner container 2. A vacuum interlayer is provided between the outer shell 1 and the inner container 2. A fiberglass support ring plate 3 is installed at the upper end of the interlayer. A support column 4 for fixing the inner container 2 is installed at the lower end of the interlayer. A reinforcing ring 5 is installed in the interlayer. The outer shell serves as a support bracket for the inner container. Before thinning, the fixing method of the inner container 2 was the strap fixing method, that is, the outer shell was connected to the inner container 2 through flat steel. When the outer shell is thinned, if the strap fixing method is still used, the outer shell is at risk of deformation, which will affect the safe use of the cryogenic pressure vessel. To solve this problem, the fixing method of the inner container 2 is changed to the method of the support column 4, that is, the inner container 2 transmits its weight to the head through a seamless pipe, thereby avoiding the influence of the thinning of the outer shell.

[0014] Furthermore, a plurality of the reinforcing rings 5 are provided. By increasing the reinforcing rings 5, the negative pressure after the interlayer is evacuated is borne.

[0015] Furthermore, the fiberglass support ring plate 3 has an annular structure, and the fiberglass support ring plate 3 surrounds the outer shell 1 in a circle. During the manufacturing and transportation of the cryogenic pressure vessel, it is generally placed horizontally. The inner container 2 is mainly supported by the support column 4 and the upper fiberglass support ring plate 3. If the previous circular small pad is still used for the fiberglass pad, it will cause deformation of the outer shell, which will affect the use of the storage tank. In order to prevent the deformation of the outer shell, the circular small pad can be changed to the fiberglass support ring plate 3 that surrounds the outer shell in a circle, making the force more uniform, thereby avoiding the influence of the thinning of the outer shell.

[0016]

[0017] ​In the above process, through the settings of the support column structure, several reinforcing rings, and the fiberglass support ring plate, the influence of the thinning of the outer shell on the cryogenic pressure vessel can be avoided, so as to achieve the goal of lightweight of the cryogenic pressure vessel, thereby achieving the goal of energy conservation and emission reduction. At the same time, the production cost can also be reduced, meeting the requirements of lightweight design and increasing the product competitiveness; the structure of this application is simple, highly practical, and easy to operate, which is worthy of promotion.

[0018] In the above specific embodiments, the purpose, technical solution, and beneficial effects of the present utility model have been further described in detail. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0020] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present utility model is normally placed. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0022] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0023] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, on top of, and over the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, beneath, and under the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

Claims

1. A novel thinning structure for the shell of a cryogenic pressure vessel, characterized in that: It comprises an outer shell (1) and an inner container (2), wherein a vacuum interlayer is provided between the outer shell (1) and the inner container (2); a glass fiber reinforced plastic support ring plate (3) is installed at the upper end of the interlayer; a support column (4) for fixing the inner container (2) is installed at the lower end of the interlayer; and a reinforcement ring (5) is installed in the interlayer.

2. According to claim 1, a novel cryogenic pressure vessel shell thinning structure is characterized in that: The reinforcement ring (5) is provided with a plurality of them.

3. The novel cryogenic pressure vessel shell thinning structure according to claim 1 is characterized in that: The glass fiber reinforced plastic support ring plate (3) is in an annular structure, and the glass fiber reinforced plastic support ring plate (3) surrounds the outer shell (1).

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