Low-temperature medium container support structure

Abstract

The present invention provides a cryogenic medium container support structure, which relates to the technical field of cryogenic containers. The cryogenic medium container support structure provided by the present invention comprises: an outer container, an inner container, a first support member, and a second support member. The inner container is mounted within the outer container, and the first and second support members are both supported between the outer and inner containers. The second support member is slidably connected to the bottom of the inner container along the axial direction of the inner container. The cryogenic medium container support structure provided by the present invention achieves a vertical layout and stable support for the inner container, while also minimizing heat conduction and reducing heat leakage.

Description

Technical Field

[0001] The present invention relates to the technical field of cryogenic containers, and in particular to a cryogenic medium container support structure. Background Art

[0002] Vertical liquid hydrogen storage tanks are used to store low-temperature liquid hydrogen and utilize a high-vacuum, multi-layer insulation structure. The inner tank is used to store liquid hydrogen, and a vacuum chamber is formed between the outer shell and the inner tank. Due to the inevitable heat conduction and radiation in vacuum liquid hydrogen tanks, and the temperature difference between liquid hydrogen and the outside world exceeding 270K, the heat leakage from liquid hydrogen storage tanks is much greater than that from containers for other media, such as liquid oxygen, liquid nitrogen, and LNG. This increases the technical difficulty of reducing heat leakage from the container. Furthermore, since the inner tank is used to store cryogenic media, the temperature fluctuates significantly. Considering thermal expansion and contraction and external vibration, the stability of the inner tank is greatly tested. Summary of the Invention

[0003] The object of the present invention is to provide a low-temperature medium container support structure, which can realize vertical layout and stable support of the inner container under the condition of low heat conduction.

[0004] In a first aspect, the present invention provides a cryogenic medium container support structure comprising: an outer container, an inner container, a first support member and a second support member;

[0005] The inner container is installed inside the outer container, and the first support member and the second support member are both supported between the outer container and the inner container;

[0006] The first supporting member is connected to the top of the inner container, and the second supporting member is connected to the bottom of the inner container in a sliding manner along the axial direction of the inner container.

[0007] In combination with the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the first support member includes: a first annular plate and a plurality of first support bars;

[0008] A plurality of first support bars are spaced around the first annular plate and connected to the first annular plate, and the plurality of first support bars are respectively connected to the outer container;

[0009] A first protruding tube is provided on the top of the inner container, and the first annular plate is sleeved on and connected to the first protruding tube.

[0010] In combination with the first possible embodiment of the first aspect, the present invention provides a second possible embodiment of the first aspect, wherein a plurality of first protrusions are provided on the inner side of the first annular plate, the plurality of first protrusions are arranged at circumferential intervals around the first protrusion tube, and the plurality of first protrusions are respectively connected to the first protrusion tube.

[0011] In combination with the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein the second support member includes: a second annular plate and a plurality of second support bars;

[0012] A plurality of second support bars are spaced apart around the second annular plate and are respectively connected to the second annular plate, and a plurality of second support bars are respectively connected to the outer container;

[0013] A second protruding tube is provided at the bottom of the inner container, and the second annular plate is slidably sleeved on the second protruding tube.

[0014] In combination with the third possible implementation of the first aspect, the present invention provides a fourth possible implementation of the first aspect, wherein a plurality of second protrusions are provided on the inner side of the second annular plate, the plurality of second protrusions are arranged at circumferential intervals around the second protrusion tube, and the plurality of second protrusions are respectively clearance-matched with the second protrusion tube.

[0015] In combination with the fourth possible implementation of the first aspect, the present invention provides a fifth possible implementation of the first aspect, wherein the second protruding tube is provided with a guide groove adapted to the second protruding portion.

[0016] In combination with the first aspect, the present invention provides a sixth possible implementation of the first aspect, wherein a plurality of drawstrings are connected between the outer container and the inner container, and the plurality of drawstrings are spaced apart along the circumferential direction of the inner container.

[0017] In combination with the sixth possible implementation of the first aspect, the present invention provides a seventh possible implementation of the first aspect, wherein the drawstring is inclined upward from the end connected to the inner container to the end connected to the outer container.

[0018] In combination with the sixth possible implementation of the first aspect, the present invention provides an eighth possible implementation of the first aspect, wherein one end of the drawstring is connected to the bottom of the inner container, and the other end of the drawstring extends upward and is connected to the outer container.

[0019] In combination with the first aspect, the present invention provides a ninth possible implementation of the first aspect, wherein the outer container comprises: an outer cylinder, a top head, a bottom head, and a support member;

[0020] The top head is connected to the top of the outer cylinder, and the bottom head is connected to the bottom of the outer cylinder;

[0021] The support member is connected to the outer cylinder or the bottom head.

[0022] The embodiments of the present invention bring the following beneficial effects: the inner container is installed inside the outer container, the first support member and the second support member are both supported between the outer container and the inner container, the first support member is connected to the top of the inner container, and the second support member is connected to the bottom of the inner container by sliding along the axial direction of the inner container. The top of the inner container is fixed, and the bottom of the inner container serves as a sliding end, thereby realizing a vertical layout and stable support of the inner container, and the heat conduction amount is small, thereby reducing heat leakage.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of a cryogenic medium container support structure provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of a first support member of a cryogenic medium container support structure provided by an embodiment of the present invention;

[0027] Figure 3 A top view of a cryogenic medium container support structure provided by an embodiment of the present invention;

[0028] Figure 4 A bottom view of a cryogenic medium container support structure provided by an embodiment of the present invention.

[0029] Icon: 100-outer container; 110-outer cylinder; 120-top head; 130-bottom head; 140-support member; 200-inner container; 210-first raised tube; 220-second raised tube; 300-first support member; 310-first annular plate; 311-first raised portion; 320-first support bar; 400-second support member; 410-second annular plate; 411-second raised portion; 420-second support bar; 500-pull strap. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Physical quantities in formulas, unless separately marked, should be understood as basic quantities of the International System of Units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0033] like Figure 1 As shown, the cryogenic medium container support structure provided by an embodiment of the present invention includes: an outer container 100, an inner container 200, a first support member 300 and a second support member 400; the inner container 200 is installed inside the outer container 100, and the first support member 300 and the second support member 400 are both supported between the outer container 100 and the inner container 200; the first support member 300 is connected to the top of the inner container 200, and the second support member 400 is connected to the bottom of the inner container 200 by sliding along the axial direction of the inner container 200.

[0034] Specifically, the first support member 300 fixes the top of the inner container 200, and the second support member 400 supports the bottom of the inner container 200. This not only prevents the inner container 200 from tipping over relative to the outer container 100 and keeps the inner container 200 and the outer container 100 apart, thereby realizing a vertical layout of the inner container 200, but also allows the inner container 200 to slide along the axial direction of the inner container 200 relative to the second support member 400, so as to adapt to the displacement caused by thermal expansion and contraction of the equipment.

[0035] like Figure 1 、 Figure 2 and Figure 3 As shown, in an embodiment of the present invention, the first support member 300 includes: a first annular plate 310 and a plurality of first support bars 320; the plurality of first support bars 320 are arranged at intervals around the first annular plate 310 and are all connected to the outer side of the first annular plate 310, and the plurality of first support bars 320 are respectively connected to the outer container 100; a first protruding tube 210 is provided on the top of the inner container 200, and the first annular plate 310 is sleeved on and connected to the first protruding tube 210.

[0036] Specifically, the second support member 400 can employ the same structure as the first support member 300, supporting the first annular plate 310 via a plurality of first support bars 320, thereby ensuring that the first annular plate 310 is radially stable relative to the outer container 100. Furthermore, because the first annular plate 310 is a plate, the contact area between the first annular plate 310 and the first raised tube 210 is small, thereby reducing the heat transfer from the first support member 300.

[0037] Furthermore, a plurality of first protrusions 311 are provided on the inner side of the first annular plate 310 . The plurality of first protrusions 311 are spaced apart around the circumference of the first protrusion tube 210 , and the plurality of first protrusions 311 are respectively connected to the first protrusion tube 210 .

[0038] Specifically, the multiple first protrusions 311 arranged on the inner side of the first annular plate 310 form an inner tooth structure of the first annular plate 310, which are respectively welded to the first protrusion tube 210 through the multiple first protrusions 311, thereby reducing the heat transfer between the first support member 300 and the first protrusion tube 210.

[0039] like Figure 1 、 Figure 3 and 4 As shown, the second support member 400 includes: a second annular plate 410 and a plurality of second support bars 420; the plurality of second support bars 420 are arranged at intervals around the second annular plate 410 and are respectively connected to the outer side of the second annular plate 410, and the plurality of second support bars 420 are respectively connected to the outer container 100; a second protruding tube 220 is provided at the bottom of the inner container 200, and the second annular plate 410 is slidably mounted on the second protruding tube 220.

[0040] Specifically, the first annular plate 310 and the second annular plate 410 are both plates, so the sizes of the first annular plate 310 and the second annular plate 410 in the axial direction of the inner container 200 are relatively small. The first annular plate 310 and the first raised tube 210 form approximately line contact, and the second annular plate 410 and the second raised tube 220 form approximately line contact, thereby reducing the heat transfer area, which is conducive to maintaining the low temperature state of the inner container 200.

[0041] In addition, a plurality of second protrusions 411 are provided on the inner side of the second annular plate 410 . The plurality of second protrusions 411 are spaced apart around the circumference of the second protrusion tube 220 , and the plurality of second protrusions 411 are respectively clearance-fitted with the second protrusion tube 220 .

[0042] Specifically, the first support bar 320 and the second support bar 420 are both narrow strips of plate. The first support bar 320 is welded to the first annular plate 310, and the welding position of the first support bar 320 is located between two adjacent first protrusions 311. The second support bar 420 is welded to the second annular plate 410, and the welding position of the second support bar 420 is located between two adjacent second protrusions 411. While ensuring radial limit stability and minimizing heat conduction, the number of the first support bar 320 and the second support bar 420 can both be three. The first protrusion 311 and the second protrusion 411 respectively form point contact or line contact with the inner container 200, and fully utilize the space between the first annular plate 310 and the second annular plate 410 to extend the heat transfer path, thereby reducing the amount of heat transferred.

[0043] Furthermore, a guide groove adapted to the second protruding portion 411 is provided on the second protruding tube 220 .

[0044] Specifically, the guide groove extends parallel to the axis of the second protruding tube 220, and the second protruding portion 411 can slide back and forth along the guide groove, thereby allowing the inner container 200 to slide longitudinally relative to the second support member 400. In addition, by engaging the second protruding portion 411 with the guide groove, the inner container 200 can be prevented from rotating about its own axis relative to the second support member 400.

[0045] As shown in the figure, a plurality of drawstrings 500 are connected between the outer container 100 and the inner container 200 , and the plurality of drawstrings 500 are arranged at intervals along the circumferential direction of the inner container 200 .

[0046] Specifically, one end of the drawstring 500 is welded to the inner container 200 , and the other end of the drawstring 500 is welded to the outer container 100 . In addition, multiple drawstrings are spaced around the circumference of the inner container 200 to ensure that the radial position of the inner container 200 relative to the outer container 100 is stable.

[0047] In addition, the drawstring 500 is tilted upward from one end connected to the inner container 200 to the end connected to the outer container 100, so that the drawstring 500 has the function of pulling the inner container 200 upward. The gravity of the inner container 200 is borne by multiple drawstrings 500, thereby improving the structural stability.

[0048] Furthermore, one end of the drawstring 500 is connected to the bottom of the outer side wall of the inner container 200 , and the other end of the drawstring 500 extends upward and is connected to the outer container 100 .

[0049] The inclined arrangement of the drawstring 500 maximizes its length within a limited space, thereby extending the heat conduction path from the inner container 200 through the drawstring 500 to the outer container 100, thereby reducing the impact of external temperature on the inner container medium. It should be noted that the connection point between the drawstring 500 and the outer container 100 is higher than the inner container 200. As a result, the drawstring 500 extends upward from the bottom of the inner container 200 and connects to the outer container 100, fully utilizing the gap between the inner container 200 and the outer container 100, and maximizing the length of the drawstring 500.

[0050] Furthermore, the outer container 100 includes an outer cylinder 110, a top head 120, a bottom head 130, and a support member 140. The top head 120 is connected to the top of the outer cylinder 110, and the bottom head 130 is connected to the bottom of the outer cylinder 110. The support member 140 is connected to the outer cylinder 110 or the bottom head 130. Under the condition of vertical layout and support of the inner container 200, the gap between the outer cylinder 110 and the inner container 200 is small. Therefore, the size of the outer cylinder 110, the top head 120, and the bottom head 130 does not need to be too large, which saves the material cost of the outer container 100 and improves the economic efficiency of the equipment. The support member 140 can be a support seat or multiple support legs. The bottom head 130 can be supported to a preset height by the support member 140. The pipeline connected to the inner container 200 can be led out from the top of the inner container 200, extend downward along the gap cavity between the inner container 200 and the outer container 100, and extend through the bottom head 130 to the outside of the outer container 100.

[0051] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, using the cryogenic medium container support structure provided in this embodiment, the first support member 300 and the second support member 400 respectively limit the inner container 200 in radial direction, and enable the inner container 200 to slide back and forth along its own axis relative to the second support member 400, and the second support member 400 can prevent the inner container 200 from rotating around its own axis. In addition, the obliquely pulled drawstring 500 can not only bear the gravity of the inner container 200, but also extend the heat transfer path of the drawstring 500. Combined with the point contact or line contact between the first support member 300 and the second support member 400 and the inner container 200, heat leakage is minimized within a limited space, which can alleviate the influence of the external ambient temperature on the medium in the inner container 200, thereby making the inner container 200 suitable for storing cryogenic media such as liquid hydrogen, liquid oxygen or liquid nitrogen.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cryogenic medium container support structure, characterized in that: include: An outer container (100), an inner container (200), a first support member (300), and a second support member (400); The inner container (200) is installed inside the outer container (100), and the first support member (300) and the second support member (400) are both supported between the outer container (100) and the inner container (200); The first support member (300) is connected to the top of the inner container (200), and the second support member (400) is connected to the bottom of the inner container (200) in a sliding manner along the axial direction of the inner container (200); The first support member (300) comprises: a first annular plate (310) and a plurality of first support bars (320); the plurality of first support bars (320) are arranged at intervals around the first annular plate (310) and are all connected to the first annular plate (310), and the plurality of first support bars (320) are respectively connected to the outer container (100); a first protruding tube (210) is provided on the top of the inner container (200), and the first annular plate (310) is sleeved on and connected to the first protruding tube (210); A plurality of first protrusions (311) are provided on the inner side of the first annular plate (310), the plurality of first protrusions (311) are arranged at intervals around the circumference of the first protrusion tube (210), and the plurality of first protrusions (311) are respectively connected to the first protrusion tube (210); A plurality of drawstrings (500) are connected between the outer container (100) and the inner container (200), and the plurality of drawstrings (500) are arranged at intervals along the circumferential direction of the inner container (200).

2. The cryogenic medium container support structure according to claim 1, characterized in that: The second support member (400) comprises: a second annular plate (410) and a plurality of second support bars (420); A plurality of second support bars (420) are arranged at intervals around the second annular plate (410) and are respectively connected to the second annular plate (410), and a plurality of second support bars (420) are respectively connected to the outer container (100); A second protruding tube (220) is provided at the bottom of the inner container (200), and the second annular plate (410) is slidably sleeved on the second protruding tube (220).

3. The cryogenic medium container support structure according to claim 2, characterized in that: A plurality of second protrusions (411) are provided on the inner side of the second annular plate (410), the plurality of second protrusions (411) are arranged at intervals around the circumference of the second protrusion tube (220), and the plurality of second protrusions (411) are respectively clearance-matched with the second protrusion tube (220).

4. The cryogenic medium container support structure according to claim 3, characterized in that: The second raised tube (220) is provided with a guide groove adapted to the second raised portion (411).

5. The cryogenic medium container support structure according to claim 1, characterized in that: The drawstring (500) is inclined upward from an end connected to the inner container (200) to an end connected to the outer container (100).

6. The cryogenic medium container support structure according to claim 1, characterized in that: One end of the drawstring (500) is connected to the bottom of the inner container (200), and the other end of the drawstring (500) extends upward and is connected to the outer container (100).

7. The cryogenic medium container support structure according to any one of claims 1 to 6, characterized in that: The outer container (100) comprises: an outer cylinder (110), a top head (120), a bottom head (130), and a support member (140); The top seal (120) is connected to the top of the outer cylinder (110), and the bottom seal (130) is connected to the bottom of the outer cylinder (110); The support member (140) is connected to the outer cylinder (110) or the bottom head (130).

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