JPS587455B2 - laminated insulation - Google Patents

Description

[Detailed description of the invention] The present invention relates to a laminated heat insulating material for low temperatures.

Generally, low-temperature laminated insulation material is installed in the space between the inner container and the outer container of a container that keeps low-temperature objects cold, and wraps around the inner container.
It is used by creating a vacuum in the space.

Conventionally, the outer surface of the inner container was wrapped with a laminated insulation material and then loosened with a separate tape, or the laminated insulation material was slit into a tape shape, and a low thermal conductivity layer and a low emissivity layer were separately and alternately applied to the inner container. It is wrapped around the outside.

These methods require a lot of effort and difficulty, especially when working along complex curved surfaces or relatively wide surfaces.

The present invention has solved these problems. That is, the present invention is a laminated heat insulating material for covering the inner container of a cold storage container, which is used adjacent to and joined to each other, and is made by laminating a plurality of low emissivity layers via a low thermal conductivity layer to form an integral structure. This is a laminated insulation material made by sewing a flexible and low thermal conductivity synthetic fiber tape or fabric material on one or both sides of the laminated insulation material.

The material having flexibility and low thermal conductivity may be any material having these properties, such as a material made of synthetic fibers, and may be suitably in the form of a tape or cloth.

In addition to these properties, materials having heat resistance, cold resistance, high tensile strength, etc. are more preferable, and polyester fabrics or tapes are most suitable.

When using a tape-shaped material, it is best to use a laminated insulation material sewn vertically, horizontally, or evenly at appropriate intervals vertically and horizontally.

When using cloth, it is preferable to have uniform sewing at the same time.

This will be explained in more detail with reference to the drawings.

Figure 1-1 shows 21 layers of a polyester net 1 knitted from polyester fibers with a mesh size of about 20 and a double-sided aluminized polyester film 2 with a thickness of about 10 μm, so that both outer layers become a polyester net. This is a strip-shaped laminated heat insulating material with a width of about 50 cm, which is made by sewing one body with 3 and simultaneously sewing two polyester cloth tapes 4 vertically on one side and polyester cloth tapes 5 at intervals of 50 cwL.

In FIG. 1-2, the polyester nets of both outer layers of the laminated heat insulating material shown in FIG. 1-1 are sewn together at both ends 6 to form a bag shape to protect both ends.

In FIG. 1-3, instead of the polyester tape of the laminated insulation material of FIG. 1-1 or 1-2, polyester fabric is integrally sewn on one side of the laminated insulation material.

Next, an example in which such a laminated heat insulating material is applied will be explained.

A state in which the laminated heat insulating material of FIG. 1-1 or FIG. 1-2 is used and attached to the outer surface of the inner container of a cold insulating container surrounded by a plane will be described with reference to FIG. 2.

First, the upper end 9 of the tape is attached to the upper edge 8 of the outer surface, and the strip-shaped laminated heat insulating material is hung down.

Similarly, the laminated heat insulating materials hung adjacent to each other are tied together using horizontal tapes facing each other as shown in the numbers 10.

In places where there is not enough room at the ends of the horizontal tapes, bridge small pieces of tape 11 to both horizontal tapes, and sew, staple, or fasten the ends of the small pieces and the opposing horizontal tape as shown in 12 to create adjacent laminated insulation. Connecting like-minded people.

In this way, all sides are covered with laminated insulation.

In this way, it is easy to install, and since the laminated heat insulating material grips the adjacent comrades, it can be installed securely.

Furthermore, when applying this top layer, be sure to cover the border of the previous laminated insulation material.

Next, an example of attaching it to a spherical surface will be explained with reference to FIG.

In order to attach the laminated insulation material to the outer surface of the inner container of a spherical cold storage container, line both sides of the strip-shaped laminated insulation material in Figure 1-1 as shown in 13 in line with the large circumference that passes through the top and bottom vertices of the sphere that forms the inner container. Cut into an arc.

Next, the upper end 9 of the vertical tape of the strip-shaped laminated heat insulating material is attached to the upper edge 8 of the inner container, and the laminated heat insulating material is allowed to hang down toward the lower side.

Next, opposing horizontal tapes of adjacent laminated insulation materials are tied together as shown in 10, or bridged with a small piece of tape 11 to bind the laminated insulation materials together and cover the entire spherical surface.

In the next layer process, the construction is completed by repeating cutting and joining with tape, trying to cover as much as possible the boundary line of the laminated insulation material that will be the layer below.

In addition, if the weight of the laminated insulation material is not a problem, Figure 4-1
As shown in Fig. 4-2, the vertical tape is not required, and the horizontal tape at the top end of the laminated insulation material is tightened around the mouth of the container like the adjoining comrade tie 14, so that the laminated insulation material is held in place first. After that, the inner container is enclosed by joining the opposite horizontal tapes of adjacent laminated insulation materials.

Next, in the case of a horizontally long cylindrical cold storage container as shown in Figure 5, the horizontal tape is not necessary, and the cylindrical contents can be wrapped one after another by connecting the adjacent ends of the laminated insulation material with opposing vertical tapes. Become.

Next, an example of using the laminated heat insulating material shown in FIGS. 1-3 will be explained with reference to FIG. 6.

When cutting a laminated insulation material into a small area and using it for a relatively small cold storage container, the polyester fabric 7 attached instead of the polyester tapes 4 and 5 will cover one side of the laminated insulation material no matter how small the area becomes. remains and thus always contributes to the bonding of adjacent laminated insulation materials.

The example shown in FIG. 6 is an example of a relatively small cold storage container. First, the opening of the inner container is hollowed out and an annular laminated insulation material 14 is completely covered over the upper side, and the lower side is covered with a circular laminated insulation material 15. In between, laminated heat insulating materials 16 having arcuate shapes on both sides are lined up without any gaps, and adjacent pieces are bridged and connected using small pieces of polyester cloth tape 11.

The above is an example of attaching tape or fabric to one side of laminated insulation, but for thicker laminated insulation with many layers, it is necessary to attach tape or cloth to both sides and connect adjacent laminated insulation on both sides. There is.

As explained above, the laminated insulation material of the present invention connects adjacent surfaces by itself and tightly wraps the target surface with the holding power of the laminated insulation material itself without any special work on the target surface. It is easy to attach even to a wide surface and has a good finish.

In this way, the present invention solves the problems of the prior art.

[Brief explanation of the drawing]

FIG. 1-1 is a perspective view of a strip-shaped laminated insulation material made by integrally sewing a laminated insulation material made of polyester net and aluminum double-sided vapor-deposited polyester film, and with polyester cloth tape attached vertically and horizontally to one side. FIG. 1-2 is a perspective view of the laminated heat insulating material shown in FIG. 1-1 when both sides of the outermost polyester net are sewn on both sides. FIG. 1-3 is a perspective view of a laminated heat insulating material with polyester fabric attached to one side instead of the polyester fabric tape in FIG. 1-1. Figure 2 shows the inner container of a cold storage container with flat sides as shown in Figure 1-1.
Or a perspective view incorporating the laminated insulation material of FIG. 1-2. FIG. 3 is a perspective view of the inner container of a spherical cold storage container wrapped in the laminated heat insulating material of FIG. 1-1. FIG. 4-1 is a perspective view of an example in which the vertical tape in the case of FIG. 2 is unnecessary. FIG. 4-2 is a perspective view of an example in which the vertical tape in the case of FIG. 3 is unnecessary. Figure 5 shows a horizontally long cylindrical cold storage container with laminated insulation material attached to the inner container. FIG. 2 is a perspective view of an example in which a laminated heat insulating material is used for the inner container of a relatively small spherical cold storage container. 1... is polyester net, 2...
is polyester gamma film, 3:... is polyester thread, 4, 5... is polyester tomoe cloth tenip,
6... is the seamed part of both sides of the polyester fabric, 7... is the polyester fabric, 8...
9 is the edge of the bath container, and 9 is the top edge of the vertical tape of the laminated insulation material.

Claims (1)

[Scope of Claims] 1. A laminated heat insulating material for covering the inner container, etc. of a cold storage container, which is used adjacent to and connected to each other, comprising a plurality of layers of low emissivity laminated with a layer of low thermal conductivity interposed therebetween. A laminated insulation material made by sewing a flexible and low thermal conductivity synthetic fiber tape or fabric material on one or both sides of the laminated insulation material sewn integrally. 2 Claim 1 in which the synthetic fiber is polyester
Laminated insulation material as described in section. 3. The laminated heat insulating material according to claim 1, wherein the tape-like material is sewn uniformly on the laminated heat insulating material at appropriate intervals vertically, horizontally, or vertically and horizontally.