Vacuum heat insulation container shell bottom plate

Abstract

The utility model provides a vacuum heat insulation container shell bottom plate, and particularly relates to the technical field of low-temperature storage, the vacuum heat insulation container shell bottom plate comprises a bottom plate, a plurality of protruding parts are formed on the bottom plate in a bending mode, the protruding parts face one side of the top of the bottom plate, the bottom plate is bent to form the protruding parts, and the protruding parts face one side of the top of the bottom plate. Compared with a flat plate with the same thickness, the cross-sectional inertia moment of the bottom plate can be enhanced, larger stress can be borne, meanwhile, welding and channel steel reinforcement are not needed, and the machining and manufacturing cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature storage, in particular to a bottom plate of a vacuum insulation container shell. Background Art

[0002] When storing cryogenic liquids, a vacuum container is generally required to reduce heat leakage. The container consists of an outer container and an inner container, and a vacuum is set between the outer container and the inner container to reduce heat leakage.

[0003] There are generally two types of bottom structures for outer containers. One is a flat plate structure with channel steels provided on the flat plate for reinforcement, and the other is a head structure with a skirt and skirt pad. Setting it as a flat plate and reinforcing it with channel steels can reduce the thickness of the bottom plate, but the cost of channel steels is high. The amount of welding required to make the head, skirt and skirt gasket is huge, the production cost is also high, and the weight of the entire shell is heavier than that of a flat plate.

[0004] In view of this, the utility model provides a vacuum insulation container shell bottom plate that can reduce weight and thickness and lower costs. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a vacuum insulation container shell bottom plate.

[0006] The utility model is achieved through the following technical solutions:

[0007] The utility model proposes that the bottom plate of the shell of a vacuum insulation container comprises a bottom plate, wherein the bottom plate is bent to form a plurality of protrusions, and the protrusions face the top side of the bottom plate.

[0008] Furthermore, the distances between adjacent protrusions are equal.

[0009] Furthermore, the height from each protrusion to the bottom of the base plate is the same.

[0010] Furthermore, the top surface of the raised portion is a horizontal plane and is parallel to the bottom surface of the bottom plate, and the two side surfaces of the raised portion are perpendicular to the horizontal plane.

[0011] Furthermore, the horizontal distance between two sides of the protrusion is equal to the distance between two adjacent protrusions.

[0012] Beneficial effects of the utility model:

[0013] The bottom plate of the vacuum insulation container shell proposed by the utility model is able to enhance the cross-sectional inertia moment of the bottom plate by bending the bottom plate to form a convex portion. Compared with a flat plate of the same thickness, it can withstand greater stress. At the same time, it does not require welding or reinforcement with channel steel, and the processing and manufacturing cost is also lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the bottom plate of the vacuum insulation container shell of the present utility model;

[0015] Figure 2 A cross-sectional view of the vacuum container of the utility model, which is composed of the bottom plate of the vacuum insulation container shell;

[0016] Figure 3 This is a structural diagram of an embodiment of the bottom plate of the vacuum insulation container shell of the present utility model;

[0017] Figure 4 This is a force analysis diagram of the bottom plate of the vacuum insulation container shell of the present utility model;

[0018] Figure 5 This is the stress analysis diagram of the flat bottom shell of the vacuum insulation container shell;

[0019] In the figure: bottom plate 1, raised portion 11;

[0020] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0021] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0022] Please refer to Figure 1-Figure 5 The present invention provides a vacuum insulation container shell bottom plate 1 including a bottom plate 1, wherein the bottom plate 1 is bent to form a plurality of protrusions 11, and the protrusions 11 face toward the top side.

[0023] In a specific embodiment, the bottom plate 1 is bent up and down multiple times to form a plurality of upward protrusions 11. The bending of the bottom plate 1 can enhance the interfacial inertia moment of the bottom plate 1 and reduce the thickness of the bottom plate 1. When the entire vacuum insulation container is evacuated, the bottom plate 1 can withstand greater force. At the same time, since the bottom plate 1 is processed by only a single component and does not require welding, the cost is lower.

[0024] Furthermore, the distances between adjacent protrusions 11 are equal.

[0025] Furthermore, the height from each protrusion 11 to the bottom of the base plate 1 is the same.

[0026] Furthermore, the top surface of the raised portion 11 is a horizontal plane and is parallel to the bottom surface of the bottom plate 1 , and the two side surfaces of the raised portion 11 are perpendicular to the horizontal plane.

[0027] Furthermore, the horizontal distance between two sides of the protrusion 11 is equal to the distance between two adjacent protrusions 11 .

[0028] In a specific embodiment, the shape of the raised portion 11 can be a horizontal "[" shape or an arc shape, a trapezoidal shape or an arch bridge shape. When it is a horizontal "[" shape, the two sides are perpendicular to the horizontal plane. The utility model only mentions a preferred embodiment. The distance between adjacent raised portions 11, the height from the raised portion 11 to the bottom of the base plate 1, and the number of raised portions 11 can be selected according to the diameter of the vacuum container and actual needs. The top of the raised portion 11 can be a horizontal plane or a corrugated shape or a plane inclined from the middle to both sides similar to an inverted V shape.

[0029] In one embodiment, a 6mm thick flat plate with a diameter of 1500mm is compared with a bent bottom plate 1. Figure 4 , wherein the raised portion 11 of the bent bottom plate 1 is in a horizontal "[" shape, the height of the raised portion 11 is 86mm, the distance between the two sides of the raised portion 11 and the distance between the raised portions 11 is 200mm, Figure 4-Figure 5 It can be seen that under a pressure of -0.1 MPa, the maximum stress of the flat plate is 392.8 MPa, and the maximum stress of the bent bottom plate 1 is 131.4 MPa. The strength of the bent bottom plate 1 is about three times that of the flat plate.

[0030] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A vacuum insulation container shell bottom plate, characterized in that: It comprises a bottom plate, which is bent to form a plurality of raised parts, the raised parts facing the top side of the bottom plate, the distances between adjacent raised parts are equal, and the heights from each raised part to the bottom of the bottom plate are the same.

2. The bottom plate of the vacuum insulation container shell according to claim 1, characterized in that: The top surface of the protrusion is a horizontal plane and is parallel to the bottom surface of the bottom plate, and the two side surfaces of the protrusion are perpendicular to the horizontal plane.

3. The bottom plate of the vacuum insulation container shell according to claim 2, characterized in that: The horizontal distance between the two sides of the protrusion is equal to the distance between two adjacent protrusions.

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