JPH05178378A - Vibration resisting double wall heat insulating container - Google Patents

Abstract

PURPOSE:To ensure that an inner container is supported by an outer container and prevent the lowering of heat insulating performance therebetween in a double wall heat insulating container such as vacuum container. CONSTITUTION:In a vibration resisting double wall heat insulating container having an inner container 3 retained by suspending supports 1 mounted on the wall of an outer container 5, the inner container 3 is installed within the outer container 5 with radial and vertical spacings defined therebetween and stoppers 2 and 6 are provided on the inner side walls and the inner top and bottom panels of the outer container 5 to allow the contact therewith of the inner container 3 when vibrations take place.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration-proof double-shell heat insulating container such as a storage container for cryogenic fluid which is mounted on a test facility having significant vibrations, a transportation system or the like and which is subject to vibration.

[0002]

2. Description of the Related Art As shown in FIG. 4, in a conventional vibration insulating double shell heat insulating container such as a cryogenic fluid storage container, an inner shell 3 is made into an outer shell 5 only by a suspension support 1. For this reason, when receiving high vibration (high acceleration), the suspension support 1
It is necessary to increase the cross-sectional area of and increase the strength,
If the cross-sectional area is increased, the amount of heat entering from the outside to the inner shell increases, and the heat insulation performance deteriorates.

[0003]

In the conventional vibration-insulating double-shell heat-insulating container described above, since the inner shell is supported by the outer shell only by the suspension support 1, the support shell must be supported in order to withstand high acceleration vibration. There is no choice but to increase the cross-sectional area and the number. Increasing the cross-sectional area and number of supports increases heat penetration, which is inconvenient for a heat insulating container.

The present invention is intended to provide a vibration-proof double-shell insulated container capable of solving the above problems.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a vibration-resistant double-shell insulated container comprising an inner shell and an outer shell, the inner shell being supported by the outer shell by a suspension support. A stopper is provided on one side, which is attached to the other of the inner shell and the outer shell with a gap, and which comes into contact with the other of the inner shell and the outer shell during vibration.

[0006]

In the present invention, the stopper does not contact the inner shell or the outer shell when no vibration is applied, and the inner shell is supported by the outer shell only by the suspension support 1.

On the other hand, when vibration is applied, the inner shell sways with respect to the outer shell, the stopper comes into contact with the inner shell or the outer shell to receive a load, and the load due to vibration does not act on the suspension support 1.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention is shown in FIGS.
Reference numeral 3 denotes an inner shell for containing a cryogenic liquid and the like, 5 denotes an outer shell for containing the inner shell 3 at a distance, a vacuum is provided between the two, and the outer shell 5 and the outer shell 3 are thermally insulated.

The inner shell 3 is supported in a suspended manner in the outer shell 5 by a plurality of suspension supports 1. Stoppers 2 and 6 are attached to the outer shell 3 to support the shaking of the inner shell 3 under vibration load. A cushioning material 4 is attached to the contact surfaces of the stoppers 2 and 6 with respect to the inner shell 3.

A plurality (four in the illustrated case) of the stoppers 2 are provided so as to be laterally opposed to the inner shell 3, and are spaced around the inner shell 3 in the vicinity of the suspension support 1. Is attached to the inner surface of the outer shell 5, and the stoppers 6 are attached to the upper and lower positions of the inner surface of the outer shell 5 so as to face the inner shell 3 in the vertical direction. A gap is formed between the inner shell 3 and the inner shell 3.

A pipe 7 for supplying and discharging a cryogenic liquid or the like connected to the inner shell 3 is processed into a spiral shape or the like so as not to be damaged when the inner shell is shaken, so as to have flexibility. In addition, as shown in FIG. 2, a cushioning material 10 such as a spring is inserted in the mounting portion of the suspension support 1 to the outer shell 5 so that an excessive load does not act on the suspension support 1 when the inner shell 3 sways. Be done. That is, the cushioning material 10 is fixed to each suspension support 1 by the nuts 8, washers 9, and the like, and is fixed to the outer shell 5 by the bracket 11 provided on the inner surface of the outer shell 5.

In the present embodiment constructed as described above, when no vibration is applied, the stoppers 2 and 6 do not contact the inner shell 3 as shown in FIG. It is supported by the outer shell 5 by.

On the other hand, when vibration is applied, as shown in FIG. 3, the stoppers 2 and 6 come into contact with the inner shell 3 and receive a load, and the load due to vibration does not act on the suspension support 1.
At this time, the load applied from the inner shell 3 to the stoppers 2 and 6 is
It is buffered by the cushioning material 4, and an excessive load is applied to the stopper 2,
6 is prevented. In addition, the cushioning material 10 prevents a load due to vibration from acting on the suspension support 1.

As described above, in this embodiment, the load due to vibration is supported by the stoppers 2 and 6, and the inner shell 3 can be reliably supported by the outer shell 5. Further, along with this, it is not necessary to increase the number of suspension supports 1 and the cross-sectional area, and since the stoppers 2 and 6 are not always in contact with the inner shell, it is possible to prevent deterioration of the heat insulation performance. it can.

In the above embodiment, the stopper is attached to the outer shell, but it may be attached to the inner shell so that a gap is provided between the outer end and the outer shell.

[0016]

According to the present invention, the inner shell or the outer shell is supported by the stopper only when the vibration load is applied, and the inner shell or the outer shell and the stopper are normally in contact with each other by virtue of the structure described in the claims. Not, the inner shell is supported by the outer shell only by the suspension support. This ensures that the inner shell is supported by the outer shell.

Further, since the suspension support is not subjected to a load due to vibration as described above, it is not necessary to increase the number and the cross-sectional area of the suspension support, and the stopper is normally an inner shell or an outer shell. Because it does not touch the shell,
It is possible to prevent deterioration of the heat insulating performance between the inner shell and the outer shell.

[Brief description of drawings]

FIG. 1A is a vertical cross-sectional view of this embodiment (FIG. 1B).
1B) is a transverse sectional view of the same.

FIG. 2 is a sectional view of an outer shell mounting portion of the suspension support according to the embodiment.

FIG. 3 shows a state during vibration of this embodiment, and FIG.
FIG. 3A is a vertical sectional view thereof (A′-A ′ sectional view of FIG. 3B), and FIG. 3B is a lateral sectional view thereof.

FIG. 4 is a vertical cross-sectional view of a conventional double shell insulated container.

[Explanation of symbols]

 1 Suspension Support 2 Stopper 3 Inner Shell 4 Buffer Material 5 Outer Shell 6 Stopper 7 Piping 8 Nut 9 Washer 10 Buffer Material 11 Bracket

Claims (1)

[Claims] 1. A vibration-resistant double-shell heat-insulating container comprising an inner shell and an outer shell, the inner shell being supported by the outer shell by a suspension support. A vibration-insulating double-shell insulated container, which is provided with a gap from the other and is provided with a stopper that comes into contact with the other of the inner shell and the outer shell during vibration.