Flexible supporting device and low-temperature container
By designing a flexible support device, the radial pressure of the cryogenic container is buffered, and the heat leakage path is extended, which solves the local stress and heat leakage problems of the rigid support structure under harsh working conditions, and achieves the stability and low heat leakage effect of the cryogenic container.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOSCIENCE FULLCRYO TECHNOLOGY CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-17
AI Technical Summary
During transportation and handling, the rigid support structure of existing cryogenic containers cannot effectively buffer local stress, leading to increased container shaking, increased liquid phase pressurization rate, and increased heat leakage.
A flexible support device is adopted, which combines sliding components, fixed components and elastic components to buffer radial pressure, extend the heat leakage path and reduce overall heat leakage.
It effectively buffers local stress in cryogenic containers, reduces heat leakage, improves stability, and prevents an increase in the liquid phase pressure rise rate.
Smart Images
Figure CN224135674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cryogenic container technology, and in particular to a flexible support device and a cryogenic container. Background Technology
[0002] Existing cryogenic containers typically consist of an outer container, an inner container, and a supporting structure. The supporting structure connects the inner and outer containers, providing support for the inner container. However, current supporting structures are usually rigid. While they can prevent the inner container from shaking to some extent, they cannot buffer local stresses under harsh conditions such as transportation, turning, or bumpy roads. This leads to two problems: firstly, excessive local stress within the container; and secondly, container shaking increases the rate of liquid phase pressurization, resulting in increased overall heat leakage.
[0003] Therefore, there is an urgent need to provide a flexible support device and a cryogenic container to solve the above-mentioned technical problems. Utility Model Content
[0004] This utility model provides a flexible support device and a cryogenic container, which can effectively buffer the local stress of the cryogenic container and reduce heat leakage.
[0005] On one hand, one embodiment of this utility model provides a flexible support device applied to a cryogenic container. The cryogenic container includes an inner container and an outer container arranged sequentially from the inside to the outside. The inner container is used to hold cryogenic liquid, and there is a vacuum interlayer between the inner container and the outer container.
[0006] The support device includes: multiple sliding components and multiple fixing components, each of the sliding components being radially arranged along the vacuum interlayer at one end of the cryogenic container, and each of the fixing components being radially arranged along the vacuum interlayer at the other end.
[0007] Each of the sliding components and each of the fixed components includes a first pull rod, a second pull rod, a sleeve, and an elastic component. One end of the first pull rod is hinged to the end cap of one end of the inner container, and the other end is hinged to the second pull rod. The other end of the second pull rod extends out of the outer container and is connected to the elastic component. The open end of the sleeve is fitted over the elastic component and passes through the end cap of the outer container into the vacuum jacket. The elastic component is axially expandable and contractible along the second pull rod to buffer the radial pressure of the cryogenic container.
[0008] In one possible design, a connecting rod support and a retaining ring are also included; a round rod is provided at the center of the base of the connecting rod support; one end of the second tie rod is fixedly connected to the base of the connecting rod support.
[0009] Each of the elastic components includes a first spring guide post, a first spring, a force-bearing support, a second spring guide post, a second spring, and a third spring guide post; the third spring guide post, the second spring, the second spring guide post, the force-bearing support, the first spring, the first spring guide post, and the fixing ring are sequentially sleeved on the round rod.
[0010] In one possible design, an insulating pad is also provided between the first spring and the force-bearing support.
[0011] In one possible design, both the first spring and the second spring are disc springs.
[0012] In one possible design, the outer diameter of the load-bearing support is equal to the inner diameter of the sleeve, so that the sleeve and the load-bearing support are sealed together.
[0013] In one possible design, a first extension tube is provided on the end cap of the inner container sliding end, and one end of the first pull rod of each sliding assembly is respectively hinged to the side wall of the first extension tube.
[0014] In one possible design, a second extension tube is provided on the end cap of the inner container, and the other end of the second extension tube extends out of the end cap of the outer container and is fixedly connected to the end cap.
[0015] One end of the first tie rod of each of the fixing components is hinged to the side wall of the second extension tube.
[0016] On the other hand, one embodiment of the present invention provides a cryogenic container, including an inner container, an outer container, and a support device in any of the above possible designs;
[0017] The inner container is used to hold cryogenic liquids, and the outer container is fitted over the inner container, with a vacuum interlayer between the inner container and the outer container.
[0018] This utility model provides a flexible support device and a cryogenic container. In this embodiment, by setting multiple sliding components and multiple fixing components, sufficient support can be provided for the cryogenic container, ensuring its stability. By setting a first tie rod and a second tie rod along the radial direction of the cryogenic container, the heat leakage path can be extended, reducing heat leakage. By setting elastic components, the support device is flexibly connected to the cryogenic container, which can effectively absorb the radial impact force generated during transportation, prevent excessive local stress in the cryogenic container, reduce container shaking, avoid increasing the liquid phase pressure rise rate, and reduce overall heat leakage. Therefore, this application can effectively buffer the local stress of the cryogenic container and reduce heat leakage. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of a cryogenic container provided in an embodiment of the present invention;
[0021] Figure 2 for Figure 1 Schematic diagram of section AA;
[0022] Figure 3 for Figure 1 Schematic diagram of the structure at section BB;
[0023] Figure 4 for Figure 3 A magnified view of a section at point C.
[0024] Figure label:
[0025] 1-Content container;
[0026] 2-Outer container;
[0027] 3- Sliding component;
[0028] 4-Fixed components;
[0029] 5-First tie rod; 6-Second tie rod; 7-Sleeve;
[0030] 8-Resilient components;
[0031] 81-First spring guide post; 82-First spring; 83-Force-bearing support; 84-Second spring guide post; 85-Second spring; 86-Third spring guide post; 87-Insulation pad;
[0032] 9-Connecting rod support; 10-Fixing ring; 11-First extension tube; 12-Second extension tube. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] like Figures 1-4 As shown, this utility model embodiment provides a flexible support device applied to a cryogenic container. The cryogenic container includes an inner container 1 and an outer container 2 arranged sequentially from the inside to the outside. The inner container 1 is used to hold cryogenic liquid, and there is a vacuum interlayer between the inner container 1 and the outer container 2.
[0035] The support device includes: multiple sliding components 3 and multiple fixing components 4, each sliding component 3 is radially arranged along the vacuum jacket at one end of the cryogenic container, and each fixing component 4 is radially arranged along the vacuum jacket at the other end.
[0036] Each sliding assembly 3 and each fixed assembly 4 includes a first pull rod 5, a second pull rod 6, a sleeve 7, and an elastic component 8. One end of the first pull rod 5 is hinged to the end cap of one end of the inner container 1, and the other end is hinged to the second pull rod 6. The other end of the second pull rod 6 extends out of the outer container 2 and is connected to the elastic component 8. The open end of the sleeve 7 is fitted over the elastic component 8 and passes through the end cap of the outer container 2 to enter the vacuum jacket. The elastic component 8 can extend and retract along the axial direction of the second pull rod 6 to buffer the radial pressure of the cryogenic container.
[0037] In this embodiment, by providing multiple sliding components 3 and multiple fixing components 4, sufficient support can be provided for the cryogenic container, ensuring its stability. By providing a first tie rod 5 and a second tie rod 6 along the radial direction of the cryogenic container, the heat leakage path can be extended, reducing heat leakage. By providing an elastic component 8, the support device is flexibly connected to the cryogenic container, effectively absorbing the radial impact force generated by transportation, turning, and bumpy road conditions, preventing excessive local stress in the cryogenic container, reducing container shaking, avoiding an increase in the liquid phase pressure rise rate, and reducing overall heat leakage. Therefore, this application can effectively buffer local stress in the cryogenic container and reduce heat leakage.
[0038] Furthermore, the first tie rod 5 is hinged to the end cap of the inner container 1, and to the first tie rod 5 and the second tie rod 6. In this way, when the inner container 1 experiences a large axial displacement due to temperature changes, the axial displacement can be absorbed by the axial movement of the hinge shaft, preventing excessive axial stress, reducing localized stress concentration caused by overall thermal expansion and contraction, and further improving the stability of the cryogenic container.
[0039] In some embodiments, it also includes a connecting rod support 9 and a fixing ring 10; a round rod is provided at the center of the base of the connecting rod support 9; one end of the second tie rod 6 is fixedly connected to the base of the connecting rod support 9;
[0040] Each elastic component 8 includes a first spring guide post 81, a first spring 82, a force-bearing support 83, a second spring guide post 84, a second spring 85, and a third spring guide post 86; the third spring guide post 86, the second spring 85, the second spring guide post 84, the force-bearing support 83, the first spring 82, the first spring guide post 81, and the fixing ring 10 are sequentially sleeved on the round rod.
[0041] The above connection method ensures a stable connection between the second tie rod 6 and the spring assembly. It should be noted that both the first spring 82 and the second spring 85 are preferably butterfly springs. Using butterfly springs allows the support device to withstand greater pressure, making it suitable for various working conditions. Furthermore, by providing the first spring guide post 81, the second spring guide post 84, and the third spring guide post 86, the first spring 82 and the second spring 85 can be positioned, ensuring that each spring is compressed axially and preventing damage. Of course, using butterfly springs is a preferred method; users can also use other spring types, and this application does not impose specific limitations.
[0042] In some embodiments, an insulating pad 87 is also provided between the first spring 82 and the force-bearing support 83 to further reduce heat leakage from the support.
[0043] In some embodiments, the outer diameter of the load-bearing support 83 is equal to the inner diameter of the sleeve 7, so that the sleeve 7 and the load-bearing support 83 are sealed together to ensure the stability of the support device.
[0044] In some embodiments, a first extension tube 11 is provided on the end cap of the sliding end of the inner container 1, and one end of the first pull rod 5 of each sliding component 3 is respectively hinged to the side wall of the first extension tube 11.
[0045] In this embodiment, the other end of the first extension tube 11 does not contact the end cap of the outer container 2, and there is a set distance between them, so as to ensure that when the inner container 1 expands due to heat, it can move towards the end where the outer container 2 is located, thereby reducing stress and improving stability. In addition, the set distance is greater than the maximum expansion distance of the inner container 1.
[0046] In some embodiments, a second extension tube 12 is provided on the end cap of the inner container 1, and the other end of the second extension tube 12 extends out of the end cap of the outer container 2 and is fixedly connected to the end cap.
[0047] One end of the first pull rod 5 of each fixing component 4 is hinged to the side wall of the second extension tube 12.
[0048] In this embodiment, the two ends of the second extension tube 12 are fixedly connected to the end caps of the inner container 1 and the outer container 2, respectively, to ensure the stability of the cryogenic container.
[0049] In addition, such as Figure 2As shown, this application also provides a cryogenic container, including an inner container 1, an outer container 2, and a support device according to any of the above embodiments;
[0050] The inner container 1 is used to hold cryogenic liquid, and the outer container 2 is fitted over the inner container 1, with a vacuum jacket between the inner container 1 and the outer container 2.
[0051] It should be noted that the above-mentioned cryogenic container and support device are based on the same concept, and each component has the same effect, so they will not be described in detail here.
[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0053] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is used only to illustrate the technical solution of this utility model, and is not intended to limit the protection scope of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the protection scope of this utility model.
Claims
1. A flexible support device, characterized in that, It is applied to a cryogenic container, which includes an inner container (1) and an outer container (2) arranged sequentially from the inside to the outside. The inner container (1) is used to hold cryogenic liquid, and there is a vacuum jacket between the inner container (1) and the outer container (2). The support device includes: multiple sliding components (3) and multiple fixing components (4), each of the sliding components (3) is radially arranged along the vacuum interlayer at one end of the cryogenic container, and each of the fixing components (4) is radially arranged along the vacuum interlayer at the other end; Each of the sliding components (3) and each of the fixed components (4) includes a first pull rod (5), a second pull rod (6), a sleeve (7), and an elastic component (8). One end of the first pull rod (5) is hinged to the end cap of one end of the inner container (1), and the other end is hinged to the second pull rod (6). The other end of the second pull rod (6) extends out of the outer container (2) and is connected to the elastic component (8). The open end of the sleeve (7) is fitted outside the elastic component (8) and passes through the end cap of the outer container (2) into the vacuum jacket. The elastic component (8) can extend and retract along the axial direction of the second pull rod (6) to buffer the radial pressure of the cryogenic container.
2. The support device of claim 1, wherein It also includes a connecting rod support (9) and a fixing ring (10); a round rod is provided at the center of the base of the connecting rod support (9); one end of the second tie rod (6) is fixedly connected to the base of the connecting rod support (9); Each of the elastic components (8) includes a first spring guide post (81), a first spring (82), a force-bearing support (83), a second spring guide post (84), a second spring (85), and a third spring guide post (86); the third spring guide post (86), the second spring (85), the second spring guide post (84), the force-bearing support (83), the first spring (82), the first spring guide post (81), and the fixing ring (10) are sequentially sleeved on the round rod.
3. The support device according to claim 2, characterized in that, An insulating pad (87) is also provided between the first spring (82) and the force-bearing support (83).
4. The support apparatus of claim 2, wherein Both the first spring (82) and the second spring (85) are disc springs.
5. The support apparatus of claim 2, wherein The outer diameter of the load-bearing support (83) is equal to the inner diameter of the sleeve (7) so that the sleeve (7) and the load-bearing support (83) are sealed together.
6. The support device of claim 1, wherein, The inner container (1) has a first extension tube (11) on the end cap of the sliding end, and one end of the first pull rod (5) of each sliding component (3) is hinged to the side wall of the first extension tube (11).
7. The support device of claim 1, wherein, A second extension tube (12) is provided on the end cap of the fixed end of the inner container (1), and the other end of the second extension tube (12) passes through the end cap of the outer container (2) and is fixedly connected to the end cap; One end of the first pull rod (5) of each of the fixing components (4) is hinged to the side wall of the second extension tube (12).
8. A cryogenic vessel, characterized by, It includes an inner container (1), an outer container (2), and a support device as described in any one of claims 1-7; The inner container (1) is used to hold cryogenic liquid, and the outer container (2) is fitted over the outer part of the inner container (1), with a vacuum interlayer between the inner container (1) and the outer container (2).