Low-heat-leakage limiting thermal expansion and cold contraction compensation structure

Abstract

The utility model discloses a low-heat-leakage limiting thermal expansion and cold contraction compensation structure, and relates to the technical field of heat insulation containers. The vacuum container comprises a container body and a limiting compensation mechanism, the container body comprises an inner container body and an outer tank body, the limiting compensation mechanism comprises a plurality of T-shaped steels, a transition joint body and a vacuum chamber, the T-shaped steels are parallel to one another, two ends of each T-shaped steel are fixed with the inner wall of the inner container body, and the transition joint body comprises a fixed seat. The inner container of the cryogenic container can be limited and fixed through the arrangement of the T-shaped steel and the matching of the T-shaped steel and the fixing block, the left-right rotation of equipment during operation is prevented, the stability is ensured, the sliding supporting sleeve can slide along the outer sleeve through the design of the sliding supporting sleeve, and the length compensation of thermal expansion and cold contraction can be carried out; the combined limiting compensation mechanism has the advantages of being high in structural strength, small in heat leakage, convenient to install, easy to manufacture, easy and convenient to operate and attractive in appearance.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat-insulating containers, and particularly relates to a low-heat-leakage position-limiting thermal expansion and contraction compensation structure. Background Art

[0002] Existing ultra-low temperature containers for liquid hydrogen and liquid helium mainly include spherical tanks, storage tanks, tank trucks for road transport, tank containers, liquid hydrogen storage and transportation tanks for rail transport, etc., as well as liquid hydrogen tank containers and liquid hydrogen ships for long-distance sea transportation of liquid hydrogen that are being developed.

[0003] With the continuous increase in the scale of the fuel cell vehicle industry, the use of liquid hydrogen has continued to increase, and higher requirements have been placed on the storage and transportation of liquid hydrogen. Among them, the application of large-scale liquid hydrogen containers with excellent insulation performance has developed rapidly, and high vacuum insulation technology has become an important direction for the development of mobile cryogenic containers such as cryogenic liquid tank trucks and tank containers and large fixed vacuum insulation containers.

[0004] Therefore, designing a structure with low heat leakage, limiting function and thermal expansion and contraction compensation function for use in an insulated container is a problem that needs to be solved by those skilled in the art. Summary of the invention

[0005] The purpose of the utility model is to provide a low heat leakage limit thermal expansion and contraction compensation structure, which can limit and fix the inner liner of a cryogenic container through the arrangement of T-shaped steel and in conjunction with a fixed block to prevent left and right rotation during equipment operation, thereby ensuring stability; the design of a sliding support sleeve can slide along an outer sleeve to compensate for thermal expansion and contraction length; the design of a fiberglass support ring, a vacuum chamber and insulation can reduce external heat intake; the combined limit compensation mechanism has the characteristics of high structural strength, low heat leakage, easy installation, simple manufacture, easy operation and beautiful appearance.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a low-leakage heat-limiting thermal expansion and contraction compensation structure, comprising a container body and a limiting compensation mechanism, wherein the container body comprises an inner tank body and an outer tank body;

[0008] The limit compensation mechanism includes a plurality of T-shaped steels, a transition joint body and a vacuum chamber;

[0009] The plurality of T-shaped steels are parallel to each other, and both ends of the T-shaped steels are fixed to the inner wall of the liner;

[0010] The transition joint body comprises a fixing seat, the inner surface and the outer surface of the fixing seat are respectively connected with an inner sleeve and an outer sleeve in one piece, the peripheral side surface of the inner tank body is provided with a preset opening, and the fixing seat is fixed in the preset opening;

[0011] The inner sleeve is located in the inner body, and a fixing block is fixed between the outer side of the inner sleeve and the two T-shaped steels;

[0012] The vacuum chamber penetrates and is fixed to the tank wall on the peripheral side of the outer tank body. One end of the vacuum chamber located inside the outer tank body is an open end. The outer sleeve is concentrically arranged inside the open end. A sliding support sleeve is slidably connected to the peripheral side of the outer sleeve. A glass fiber reinforced plastic support ring is fixed between the sliding support sleeve and the inner wall of the open end.

[0013] The open end of the vacuum chamber is sealed by a sliding support sleeve, a glass fiber reinforced plastic support ring and a transition joint body. A vacuum cavity is formed in the vacuum chamber, and the vacuum cavity is filled with a heat insulation blanket.

[0014] Furthermore, the sliding support sleeve is provided with a support edge at one end close to the inner tank body, the other end of the sliding support sleeve is welded and fixed with a first support rib, and the inner hole of the glass fiber reinforced plastic support ring is fixed between the first support rib and the support edge.

[0015] Furthermore, an inner support ring is provided inside the open end, a second support rib is welded and fixed to the end surface of the open end, and the outer edge of the glass fiber reinforced plastic support ring is fixed between the second support rib and the inner support ring.

[0016] Furthermore, the thermal insulation quilt is composed of a plurality of thermal insulation layers, and the layer density of the thermal insulation quilt is 2-4.3 layers / mm.

[0017] Furthermore, the vacuum chamber is provided with a vacuum port, and the vacuum port is arranged on the peripheral side of the vacuum chamber.

[0018] The utility model has the following beneficial effects:

[0019] The utility model can limit and fix the inner liner of the cryogenic container through the arrangement of T-shaped steel and the cooperation of the fixing block, prevent the left and right rotation during the operation of the equipment, play a limiting role and ensure stability; the design of the sliding support sleeve can slide along the outer sleeve, and can compensate for the thermal expansion and contraction length; the design of the glass fiber reinforced plastic support ring, the vacuum chamber and the insulation can reduce the external heat intake and reduce heat leakage; the combined limiting compensation mechanism has the characteristics of high structural strength, small heat leakage, easy installation, simple manufacture, simple operation and beautiful appearance; at the same time, it is suitable for high vacuum cryogenic container products such as liquid hydrogen and liquid helium, and has the characteristics of flexibility, batch prefabrication and wide product applicability.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of a low heat leakage limiting thermal expansion and contraction compensation structure of the utility model;

[0023] Figure 2 It is a structural cross-sectional view at the position of the limit compensation mechanism;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-container body, 2-T-steel, 3-transition joint body, 4-vacuum chamber, 5-fixed block, 6-sliding support sleeve, 7-glass fiber reinforced plastic support ring, 8-insulation blanket, 101-inner tank body, 102-outer tank body, 103-preset port, 301-fixed seat, 302-inner sleeve, 303-outer sleeve, 401-open end, 402-inner support ring, 403-second support rib, 404-vacuum port, 601-support rib, 602-first support rib. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-2 As shown, the utility model is a low heat leakage limited thermal expansion and contraction compensation structure, comprising a container body 1 and a limited compensation mechanism, wherein the container body 1 comprises an inner tank body 101 and an outer tank body 102;

[0028] The limit compensation mechanism includes a plurality of T-shaped steels 2, a transition joint body 3 and a vacuum chamber 4;

[0029] A plurality of T-shaped steels 2 are parallel to each other, and both ends of the T-shaped steels 2 are fixed to the inner wall of the liner body 101;

[0030] The transition joint body 3 includes a fixing seat 301, the inner surface and the outer surface of the fixing seat 301 are respectively connected with an inner sleeve 302 and an outer sleeve 303, and a preset opening 103 is provided on the side surface of the inner tank body 101, and the fixing seat 301 is fixed in the preset opening 103;

[0031] The inner sleeve 302 is located in the inner tank body 101, and a fixing block 5 is fixed between the outer side of the inner sleeve 302 and the two T-shaped steels 2;

[0032] The vacuum chamber 4 penetrates and is fixed to the tank wall on the peripheral side of the outer tank body 102. One end of the vacuum chamber 4 located inside the outer tank body 102 is an open end 401. The outer sleeve 303 is concentrically arranged inside the open end 401. The peripheral side of the outer sleeve 303 is slidably connected with a sliding support sleeve 6. A glass fiber reinforced plastic support ring 7 is fixed between the sliding support sleeve 6 and the inner wall of the open end 401.

[0033] The open end 401 of the vacuum chamber 4 is sealed by the sliding support sleeve 6 , the glass fiber reinforced plastic support ring 7 and the transition joint body 3 , and a vacuum cavity is formed in the vacuum chamber 4 , and the vacuum cavity is filled with a heat insulation blanket 8 .

[0034] Furthermore, a support edge 601 is provided at one end of the sliding support sleeve 6 close to the inner tank body 101 , a first support rib 602 is welded and fixed to the other end of the sliding support sleeve 6 , and the inner hole of the glass fiber reinforced plastic support ring 7 is fixed between the first support rib 602 and the support edge 601 .

[0035] Furthermore, an inner support ring 402 is provided inside the open end 401 , a second support rib 403 is welded and fixed to the end surface of the open end 401 , and the outer edge of the FRP support ring 7 is fixed between the second support rib 403 and the inner support ring 402 .

[0036] Furthermore, the thermal insulation quilt 8 is composed of a plurality of thermal insulation layers, and the layer density of the thermal insulation quilt 8 is 2-4.3 layers / mm.

[0037] Among them Figure 2 As shown, a vacuum port 404 is provided on the vacuum chamber 4, and the vacuum port 404 is arranged on the peripheral side of the vacuum chamber 4. After vacuuming, the vacuum port 404 is blocked by a valve core or other mechanisms, and the vacuum cavity is filled with a vacuum degree ≤0.01pa.

[0038] The working principle of the utility model is: the combination of T-shaped steel 2 and fixed block 5 can prevent the internal rotation of the equipment, and the setting of sliding support sleeve 6 can compensate for the length of thermal expansion and contraction, and the compensation length can reach about 3‰ of the equipment.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A low heat leakage position-limiting thermal expansion and contraction compensation structure, comprising a container body (1) and a position-limiting compensation mechanism, wherein the container body (1) comprises an inner tank body (101) and an outer tank body (102), characterized in that: The limit compensation mechanism comprises a plurality of T-shaped steels (2), a transition joint body (3) and a vacuum chamber (4); The plurality of T-shaped steels (2) are parallel to each other, and both ends of the T-shaped steels (2) are fixed to the inner wall of the liner body (101); The transition joint body (3) comprises a fixing seat (301), the inner surface and the outer surface of the fixing seat (301) are respectively integrally connected with an inner sleeve (302) and an outer sleeve (303), the peripheral side surface of the inner liner body (101) is provided with a preset opening (103), and the fixing seat (301) is fixed in the preset opening (103); The inner sleeve (302) is located inside the inner liner body (101), and a fixing block (5) is fixed between the outer side of the inner sleeve (302) and the two T-shaped steels (2); The vacuum chamber (4) penetrates and is fixed to the tank wall on the peripheral side of the outer tank body (102); one end of the vacuum chamber (4) located inside the outer tank body (102) is an open end (401); the outer sleeve (303) is concentrically arranged inside the open end (401); a sliding support sleeve (6) is slidably connected to the peripheral side of the outer sleeve (303); a glass fiber reinforced plastic support ring (7) is fixed between the sliding support sleeve (6) and the inner wall of the open end (401); The open end (401) of the vacuum chamber (4) is sealed by a sliding support sleeve (6), a glass fiber reinforced plastic support ring (7) and a transition joint body (3); a vacuum cavity is formed in the vacuum chamber (4), and the vacuum cavity is filled with a heat insulating blanket (8).

2. A low heat leakage limited thermal expansion and contraction compensation structure according to claim 1, characterized in that: The sliding support sleeve (6) is provided with a support edge (601) at one end close to the inner tank body (101), and a first support rib (602) is welded and fixed to the other end of the sliding support sleeve (6), and the inner hole of the glass fiber reinforced plastic support ring (7) is fixed between the first support rib (602) and the support edge (601).

3. A low heat leakage limited thermal expansion and contraction compensation structure according to claim 1, characterized in that: An inner support ring (402) is provided inside the open end (401), a second support rib (403) is welded and fixed to the end face of the open end (401), and the outer edge of the glass fiber reinforced plastic support ring (7) is fixed between the second support rib (403) and the inner support ring (402).

4. The low heat leakage limited thermal expansion and contraction compensation structure according to claim 1, characterized in that: The thermal insulation quilt (8) is composed of a plurality of thermal insulation layers, and the layer density of the thermal insulation quilt (8) is 2-4.3 layers / mm.

5. The low heat leakage limited thermal expansion and contraction compensation structure according to claim 1, characterized in that: The vacuum chamber (4) is provided with a vacuum port (404), and the vacuum port (404) is arranged on the peripheral side of the vacuum chamber (4).

Images