Low-temperature storage tank with radial supporting structure for inner container and outer container

Abstract

The utility model belongs to the technical field of storage containers, and particularly relates to a low-temperature storage tank with inner and outer container radial supporting structures. Comprising an outer container, an inner container and a supporting assembly. The inner container is sleeved in a cavity of the outer container; the supporting assembly comprises a base plate, a sleeve, a sealing plate and a connecting pipe, the base plate is arranged between the inner container and the outer container, the sealing plate is arranged at one end of the connecting pipe and makes contact with the sealing plate in an attached mode, the other end of the connecting pipe makes contact with the base plate on the inner container in an attached mode, the connecting pipe is sleeved with the sleeve, and the connecting pipe is sleeved with the sleeve. And the cover plate is in contact with the sealing plate. In practical application, the supporting assembly is arranged between the inner container and the outer container, so that the radial supporting effect is achieved, meanwhile, heat transfer between the inner container and the outer container is reduced, holes do not need to be formed in the outer container, and the whole low-temperature storage tank is more attractive.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of storage container, specifically relates to a low temperature storage tank with inner and outer container radial support structure. BACKGROUND

[0002] Low temperature liquid storage tank is widely used in the storage and transportation field of low temperature medium such as liquid oxygen, liquid nitrogen, liquid argon etc. This kind of storage tank usually adopts double-layer structure design, that is, composed of inner container (used for directly contacting low temperature liquid) and outer container (providing protection and heat preservation effect). In order to ensure good heat preservation effect, a certain vacuum space needs to be kept between the inner and outer containers to reduce heat conduction. However, in practical application, how to effectively support the inner container while ensuring sufficient spacing and prevent it from moving or deforming due to cold shrinkage caused by temperature change, the traditional radial support method includes installing metal support on the outer container or using external frame structure. Although these methods can provide necessary support, there are some shortcomings. First, the opening on the outer container increases the manufacturing difficulty and may become a potential leakage point, affecting the vacuum insulation performance; second, the metal support is easy to form a thermal bridge due to its high thermal conductivity, thereby reducing the heat preservation efficiency of the whole system; third, the complex external support structure not only increases the material cost, but also makes the overall appearance of the storage tank not beautiful enough.

[0003] The Chinese patent with publication number CN216547814U discloses a horizontal low temperature storage tank, belonging to the technical field of low temperature liquid storage container. The tank body of the storage tank is composed of an inner container with a wrapped heat preservation layer and an outer shell covering the inner container, and the front and rear parts of the inner container are respectively connected with the outer shell through four sliding supports and fixed supports. The fixed support includes a rear glass steel pipe with an inner end embedded in a limiting recess, and the outer end of the rear glass steel pipe extends into a rear cover, and the limiting recess is fixedly connected to the inner container, and the rear cover is fixedly connected to the outer shell. The sliding support includes a front glass steel pipe with an inner end in contact with the surface of the inner container, and the outer end of the front glass steel pipe extends into a front cover, and the front cover is fixedly connected to the outer shell. The support components of the above device protrude from the tank body shell, and the overall integrity of the low temperature storage tank is poor. Therefore, it is urgent for the technical personnel in the field to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is the poor overall integrity of the low temperature storage tank in the above-mentioned prior art.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of:

[0006] The low-temperature storage tank with the inner-outer container radial support structure comprises an outer container, an inner container and a support assembly; the inner container is sleeved in the cavity of the outer container; the support assembly comprises a backing plate, a sleeve, a sealing plate and a connecting pipe, the backing plate is arranged between the inner container and the outer container, the sealing plate is arranged at one end of the connecting pipe and is in contact with the sealing plate, the other end of the connecting pipe is in contact with the backing plate on the inner container, and the sleeve is sleeved on the connecting pipe and is in contact with the sealing plate.

[0007] By adopting the above technical scheme, since the connecting pipe is made of epoxy glass fiber layer pipe material, it has very low thermal conductivity, can effectively insulate heat transfer, thereby improving the heat preservation effect of the whole tank, the support structure does not need to be installed on the outer container, the potential thermal bridge effect is reduced, the heat preservation capacity is further enhanced, the design of the backing plate, the sealing plate and the sleeve ensures the stable connection between the inner container and the outer container, and even when the inner container is cold shrunk due to temperature change, good structural integrity can be maintained, the built-in support mode makes the whole tank more solid and durable, can withstand various stresses in the transportation process, the built-in support structure avoids complex hole opening operation on the outer container, simplifies the manufacturing process, reduces the production cost, reduces the number of welding points, simplifies the assembly process, improves the work efficiency, does not need to open holes on the surface of the outer container, maintains the consistency and neatness of the appearance of the tank, and improves the overall aesthetics of the product.

[0008] Further, the backing plate comprises a backing plate one and a backing plate two, the curvature of the backing plate one is matched with the curvature of the outer container, and the backing plate one is welded on the inner wall of the outer container; the curvature of the backing plate two is matched with the curvature of the inner container, and the backing plate two is welded on the outer wall of the inner container.

[0009] By adopting the above technical scheme, the backing plate one and the backing plate two are fixed in the corresponding positions by welding, which can effectively increase the rigidity and stability of the local area of the inner-outer container, prevent deformation caused by temperature change or external pressure, since the backing plate is perfectly matched with the surface of the container, the support force is uniformly distributed, the stress concentration points are reduced, and the safety of the overall structure is improved, the curvature of the backing plate one is matched with the curvature of the inner wall of the outer container, and the curvature of the backing plate two is matched with the curvature of the outer wall of the inner container, so that there is no gap between the backing plate and the surface of the container, thereby providing more stable support, and the design of close fit helps to reduce the thermal bridge effect and further improve the heat insulation performance, since the curvature of the backing plate has been pre-designed to match the surface of the container, the position of the backing plate does not need to be adjusted additionally during actual installation, the installation steps are simplified, and the work efficiency is improved.

[0010] Further, the arc of the sealing plate is matched with the arc of the gasket plate I, the outer side of the sealing plate is welded with the gasket plate I, and the inner side of the sealing plate is welded with the connecting pipe.

[0011] By adopting the above technical scheme, the close fit and welding between the sealing plate, the gasket plate I and the connecting pipe ensure the integrity of the support structure, the seamless connection reduces the possibility of looseness or displacement, and improves the stability and safety of the storage tank during use. Since the arc of the sealing plate is matched with the gasket plate I, the contact surface can uniformly distribute pressure, avoiding local stress concentration, thereby prolonging the service life of the entire support system. Uniform pressure distribution also helps to maintain the central position of the inner container in the outer container, reducing additional stress caused by eccentricity. The close-fitting design reduces air gaps, reduces the risk of heat transfer through contact points, and helps to maintain good thermal insulation effect. The combination of the sealing plate and the epoxy glass layer pipe further insulates the heat conduction path between the inner and outer containers, enhancing the overall thermal insulation capacity. Since the shape of the sealing plate has been pre-designed, no complex adjustment work is required during installation, and it can be directly positioned and welded, simplifying the production process. Standardized component design is also conducive to the application of automated production lines, improving production efficiency. The firm welding of the sealing plate, the gasket plate I and the connecting pipe forms a closed system, which helps to maintain the vacuum degree of the interlayer space and prevent external gas from penetrating into the interlayer, affecting the thermal insulation effect. Good sealing also reduces the potential risk of leakage, ensuring the safe operation of the storage tank.

[0012] Further, the sleeve is welded on the inner side of the sealing plate, and the size of the sleeve is matched with the size of the connecting pipe.

[0013] Further, the connecting pipe adopts an epoxy glass layer pipe.

[0014] By adopting the above technical scheme, the epoxy glass layer pipe has very low thermal conductivity, which can effectively reduce the heat transfer from the outer container to the inner container through the support structure. The epoxy glass material combines the strength of glass fiber and the toughness of epoxy resin, providing excellent mechanical properties, ensuring sufficient strength while being relatively light, which helps to reduce the weight of the entire storage tank. The epoxy glass layer pipe has good corrosion resistance to most chemicals and solvents, which enables it to maintain good performance in long-term exposure to environments that may contain corrosive media. Under extreme temperature conditions, the epoxy glass layer pipe exhibits good dimensional stability and is not prone to significant expansion or contraction due to temperature changes.

[0015] Further, 4-6 support assemblies are uniformly arranged between the inner container and the outer container.

[0016] By adopting the above technical scheme, the uniformly distributed support assembly can ensure uniform distribution of pressure between the inner container and the outer container, avoid local stress concentration, and reduce the risk of deformation or damage caused by uneven stress, thereby prolonging the service life of the storage tank, the multiple support points provide more stable structural support, and even under temperature changes or external impacts, the inner container can be kept in the correct position in the outer container, which helps to improve the structural stability and safety of the entire storage tank, and through the design of multiple support points, the inner container can be effectively prevented from shifting or moving in the outer container, ensuring that the inner container is always in the center position, which is very important for maintaining good thermal insulation performance and avoiding unnecessary mechanical wear.

[0017] The utility model has the advantages of:

[0018] 1. The utility model discloses a built-in support structure, which does not need to open holes on the outer container to install support pieces, thereby simplifying the manufacturing process, reducing the production difficulty, reducing the number of welding points and standardizing the design to make the assembly process more efficient, reducing the manual operation time and material waste, evenly arranging multiple support assemblies to further optimize the installation steps, shorten the product manufacturing cycle and improve the overall production efficiency.

[0019] 2. The uniformly distributed support assembly provides stable support force, prevents the inner container from shifting or deforming due to temperature changes or external impacts, thereby ensuring the safety of the storage tank during long-term operation, the design reduces potential leakage points, improves the sealing of the vacuum environment, and when inspection or maintenance is needed, the clear welding boundary and simple structure layout enable technicians to quickly locate the problem and handle it, greatly simplifying the maintenance work and prolonging the service life of the storage tank.

[0020] 3. The utility model uses an epoxy glass layer pipe as a connecting pipe, combined with the design of a gasket plate and a sealing plate that matches the curvature of the inner and outer containers, significantly improving the thermal insulation performance of the storage tank. The epoxy glass layer pipe has a low thermal conductivity, which can effectively reduce heat transfer, and its high strength characteristics ensure good structural stability even when the temperature changes. Not only does it reduce the thermal bridge effect, but it also enhances the insulation effect of the entire storage tank system, ensuring the safe storage of low-temperature liquids. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The utility model is a structural schematic view.

[0022] Figure 2 The utility model is a top view.

[0023] Figure 3 It is an internal section view.

[0024] Wherein, 1 - outer container; 2 - inner container; 3 - support assembly; 31 - backing plate; 311 - backing plate one; 312 - backing plate two; 32 - sleeve; 33 - sealing plate; 34 - connecting pipe. DETAILED DESCRIPTION

[0025] The utility model will be described in further detail below in combination with the drawings and specific preferred embodiments.

[0026] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "left side", "right side", "upper part", "lower part" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and "first", "second" and the like do not represent the importance of the parts, so it cannot be understood as a limitation on the utility model. The specific dimensions used in the embodiment are only for the purpose of illustrating the technical scheme, and do not limit the protection scope of the utility model.

[0027] As shown in Figure 1 , Figure 2 and Figure 3 , a low-temperature storage tank with an inner and outer container radial support structure, comprising an outer container 1 and an inner container 2, six support assemblies 3 are arranged between the outer container 1 and the inner container 2, the support assembly 3 comprises a backing plate 31, the backing plate 31 comprises a backing plate one 311 welded to the inner wall of the outer container 1, and a backing plate two 312 welded to the outer wall of the inner container 2, the backing plate one 311 and the backing plate two 312 are in vertical alignment, wherein the curvature of the backing plate one 311 is adapted to the curvature of the outer container 1, and the curvature of the backing plate two 312 is adapted to the curvature of the inner container 2, the backing plate 1 is welded with a sealing plate 33 on the inner side, the sealing plate 33 is welded with a sleeve 32, the size of the connecting pipe 34 is adapted to the sleeve 32, the connecting pipe 34 is sleeved in the sleeve 32, and the other end is in contact with the backing plate two 312.

[0028] First, the outer container 1 and the inner container 2 are prepared, the outer container 1 is a double-layer structure of the outer protective shell, the inner container 2 is used for directly contacting and storing low-temperature liquid, the gasket plate one 311 is welded on the inner wall of the outer container 1, the curvature of the gasket plate one 311 is matched with the curvature of the inner wall of the outer container 1, so as to ensure the close fit, the gasket plate two 312 is welded on the outer wall of the inner container 2, the curvature of the gasket plate two 312 is matched with the curvature of the outer wall of the inner container 2, so as to also ensure the close fit. The gasket plate one 311 and the gasket plate two 312 are aligned in order to install the connecting pipe 34 subsequently, the sealing plate 33 is welded on the inner side of the gasket plate one 311, the curvature of the sealing plate 33 is matched with the curvature of the gasket plate one 311, so as to ensure that there is no gap between the two, the sleeve pipe 32 is welded on the sealing plate 33, the size of the sleeve pipe 32 is matched with the connecting pipe 34, so as to ensure that the connecting pipe 34 can be smoothly sleeved in the sleeve pipe 32, one end of the connecting pipe 34 is sleeved in the sleeve pipe 32 and is fixed by welding, so as to ensure that the connecting pipe 34 is firmly combined with the sealing plate 33, the other end of the connecting pipe 34 is in contact with the gasket plate two 312 and is fixed by welding, so as to ensure that the connecting pipe 34 is firmly connected between the gasket plate one 311 and the gasket plate two 312, in order to ensure the structural stability and uniform stress of the whole tank, six support assemblies 3 are uniformly arranged between the outer container 1 and the inner container 2 according to the design requirements. The position of each support assembly 3 should be accurately calculated, so as to ensure the best supporting effect and heat preservation performance.

[0029] The suitable epoxy glass layer pipe is selected as the connecting pipe 34, the epoxy glass layer pipe has low thermal conductivity and good mechanical strength, can effectively support the inner container 2 and insulate heat transfer, one end of the epoxy glass layer pipe is sleeved in the sleeve pipe 32, so as to ensure that the epoxy glass layer pipe is in contact with the sealing plate 33, the other end of the epoxy glass layer pipe is in contact with the gasket plate two 312, so as to ensure that the epoxy glass layer pipe is firmly connected between the gasket plate one 311 and the gasket plate two 312, since the epoxy glass layer pipe has a certain flexibility, when the inner container 2 is cold shrunk due to low temperature, the epoxy glass layer pipe can adapt to this deformation and will not limit the shrinkage of the inner container 2, so as to maintain the structural integrity of the tank.

[0030] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the specific details in the above embodiments, within the technical concept range of the utility model, the technical scheme of the utility model can be variously transformed, these equivalent transformations all belong to the protection range of the utility model.

Claims

1. A cryogenic storage tank having an inner and outer container radial support structure, characterized by: The application relates to a double-layered container, which comprises an outer container (1), an inner container (2) and a supporting assembly (3); the inner container (2) is sleeved in the cavity of the outer container (1); the supporting assembly (3) comprises a cushion plate (31), a sleeve (32), a sealing plate (33) and a connecting pipe (34); the cushion plate (31) is arranged between the inner container (2) and the outer container (1); the sealing plate (33) is arranged at one end of the connecting pipe (34) and is in contact with the sealing plate (33); the other end of the connecting pipe (34) is in contact with the cushion plate (31) on the inner container (2); the sleeve (32) is sleeved on the connecting pipe (34) and is in contact with the sealing plate (33).

2. The cryogenic storage tank having an inner and outer container radial support structure of claim 1, wherein: The cushion plate (31) comprises a cushion plate one (311) and a cushion plate two (312); the curvature of the cushion plate one (311) is matched with the curvature of the outer container (1); the cushion plate one (311) is welded on the inner wall of the outer container (1); the curvature of the cushion plate two (312) is matched with the curvature of the inner container (2); and the cushion plate two (312) is welded on the outer wall of the inner container (2).

3. The cryogenic storage tank having an inner and outer container radial support structure of claim 2, wherein: The curvature of the sealing plate (33) is matched with the curvature of the cushion plate one (311); the outer side of the sealing plate (33) is welded with the cushion plate one (311); and the inner side of the sealing plate (33) is welded with the connecting pipe (34).

4. The cryogenic storage tank having inner and outer container radial support structure of claim 1, wherein: The sleeve (32) is welded on the inner side of the sealing plate (33); and the size of the sleeve (32) is matched with the size of the connecting pipe (34).

5. The cryogenic storage tank having inner and outer container radial support structure of claim 1, wherein: The connecting pipe (34) is an epoxy glass fiber layer pipe.

6. The cryogenic storage tank with inner and outer container radial support structure of claim 1, wherein: Four to six supporting assemblies (3) are evenly arranged between the inner container (2) and the outer container (1).

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