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Heat insulation container

A technology of container and thermal insulation layer, applied in the direction of container, large-scale container, non-pressure container, etc., can solve the problems of cracking, easy occurrence of use time, etc., achieve high thermal insulation performance, and inhibit the effect of thermal shrinkage cracking

Inactive Publication Date: 2017-03-22
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, cracks caused by thermal shrinkage become more likely to occur as the product is used for a longer period of time, which is a big problem

Method used

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  • Heat insulation container
  • Heat insulation container
  • Heat insulation container

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0029] Figure 1 to Figure 5 The heat insulation container 1 in 1st Embodiment of this invention is shown.

[0030] figure 1 It is a sectional view of the heat insulation container 1 of 1st Embodiment of this invention, figure 2 is an enlarged cross-sectional view showing the heat insulating structure 2 of the heat insulating container 1, image 3 is a cross-sectional view of the vacuum heat insulating material 8 used in the heat insulating structure 2 of the heat insulating container 1, Figure 4 is a plan view of the vacuum heat insulating material 8, Figure 5 It is an explanatory drawing which shows the thermal simulation result of the heat insulation container 1 in this 1st Embodiment.

[0031] In this embodiment, the heat insulation container 1 of the spherical independent tank system (MOS system) used for an LNG tanker etc. is shown.

[0032] exist figure 1 Among them, the heat-insulated container 1 is used to store substances that are 100°C lower than normal t...

no. 2 Embodiment approach

[0092] Next, a second embodiment of the present invention will be described.

[0093] The structure of the second embodiment and Figure 1 ~ Figure 4 The structure shown is the same, but it is different in the following two points: the first heat insulating layer 7a and the second heat insulating layer 7b constituting the primary heat insulating layer 7 are formed of different kinds of materials; or, even if the same foamed benzene Ethylene also makes its foam density different, and the heat insulating performance of the second heat insulating layer 7b is equal to or higher than that of the first heat insulating layer 7a.

[0094] For example, the structure which forms the 1st heat insulating layer 7a with the expanded polystyrene of EPS similar to 1st Embodiment, and forms the 2nd heat insulating layer 7b with polyurethane foam is mentioned.

[0095] Thereby, the atmospheric temperature of the portion where the first heat insulating layer 7a is provided on the side of the co...

no. 3 Embodiment approach

[0098] Next, a third embodiment of the present invention will be described.

[0099] The structure of the third embodiment and Figure 1 ~ Figure 4 The structure shown is the same, but the layer in contact with the second heat insulating layer 7b among the first protective layer 16a and the second protective layer 16b of the outer cover 15 of the vacuum heat insulating material 8 is different from that on the opposite side. The layer in contact with the outside air has high resistance to low temperature embrittlement.

[0100] For example, the material on the side of the vacuum heat insulating material 8 that is in contact with the second heat insulating layer 7 b is a material obtained by coating the laminated film inside the thermal stress dispersion layer 21 with aluminum foil. In addition, as the material on the opposite side, which is in contact with the outside air, a material obtained by coating the laminated film inside the thermal stress dispersion layer 21 by alumin...

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Abstract

Provided is a heat insulation container for holding a substance at a temperature that is at least 100 DEG C below normal temperature, wherein the heat insulation container is provided with a container casing and a primary heat insulation layer that is arranged outside of the container casing and installed on at least the container casing side. The container is further provided with: a vacuum insulation material (8) installed outward from the primary heat insulation layer, the vacuum insulation material (8) having a breathable core material (14) and an outer sheath material (15) for vacuum-sealing the core material (14); and a thermal stress dispersion layer (21) arranged between the vacuum insulation material (8) and the primary heat insulation layer. This configuration makes it possible to minimize decline in the heat insulation capability of the outer sheath material (15) of the vacuum insulation material (8) resulting from thermal shrinkage cracking, and hence to ensure high heat insulation capability over an extended period of time.

Description

technical field [0001] The present invention relates to heat insulation containers such as cryogenic tanks for storing ultra-low temperature substances such as LNG (liquefied natural gas). Background technique [0002] In general, for cryogenic tanks for storing liquefied natural gas (LNG), etc., in order to reduce evaporation loss during transportation and storage, vacuum insulation materials have been used to enhance thermal insulation performance (for example, refer to Patent Document 1). [0003] Figure 10 It is a figure which shows the heat insulation structure of the conventional low temperature tank shown in patent document 1. [0004] Such as Figure 10 As shown, the heat insulation structure of the cryogenic tank includes: a tank outer wall 101 and thousands of heat insulation panels 102 arranged outside the tank outer wall 101 . The heat insulation board 102 includes: an inner layer board 103 made of phenolic foam; The outer plate 104. In addition, the addition...

Claims

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Application Information

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IPC IPC(8): B65D90/06F16L59/02F16L59/065F16L59/12F17C3/04
CPCB65D90/06F16L59/02F16L59/065F16L59/12F17C3/04
Inventor 宫地法幸宫本健太
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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