JPH0554899U - Insulation - Google Patents

Abstract

(57) [Summary] [Structure] 1. In a vacuum double bottle type heat-insulating container 1, a large number of parallel ribs 5 and 6 are provided at different positions on the inner circumference of the outer container 2 and the outer circumference of the inner container 3 so as to project from each other. The ribs 5, 6 are provided on one or both sides of the container 3.
Attach the piano wires 7 intersecting with each other in parallel with each other. 2. In a space 4 between the outer container 2 and the inner container 3, a net 8 in which a rigid wire 9 is roughly braided is provided. 3. Between the outer container 2 and the inner container 3, there are provided at least three layers of layers formed by arranging the rigid wire rods 10 in parallel with each other so that the wire rods 10 forming adjacent layers intersect each other. [Effect] The piano wire 7, the net 8 or the wire 10 supports the deformation of the outer container 2 and the inner container 3 due to the atmospheric pressure, and prevents the outer container 2 and the inner container 3 from contacting each other and losing the heat insulating property. Piano wire 7,
The heat transfer path due to the presence of the wire net 8 or the wire rod 10 becomes point contact, and the heat insulation is not impaired.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a heat insulating body in which a space between two facing surface members is evacuated, and in particular, a large metal vacuum double layer in which a space between an inner container and an outer container is evacuated. It relates to an insulated container of bottle type.

[0002]

[Prior Art]

 Conventionally, this type of heat-insulating container is generally used as a foam bottle and the like, and is usually small.

However, in recent years, since this type of vacuum double bottle type heat insulating container has an extremely high degree of heat insulation, a metal vacuum double bottle type heat insulating container having a large capacity of several tens to several hundreds of liters is used. Containers have been developed and are used in various industrial applications.

[0004]

[Problems to be solved by the device]

 However, in such a large-capacity heat-insulating container, the diameter increases as the capacity increases, and the pressure resistance of the outer container and the inner container decreases. In particular, the outer container is evacuated on the inside and atmospheric pressure is applied on the outside, so that a large container may not withstand the atmospheric pressure and may be crushed.

Further, in the case of an adiabatic container having an irregular shape such as an elliptical shape or a substantially rectangular shape, there is a portion having a small curvature and a portion close to a flat surface. At the same time as it is easily crushed by atmospheric pressure, the inner container also tends to expand outward due to atmospheric pressure.

In this way, when the outer container is crushed by the atmospheric pressure or the inner container swells outward, the outer container and the inner container come into contact with each other and the heat insulating property is impaired. It's useless.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a heat-insulating container capable of maintaining sufficient heat-insulating property without the outer container being crushed by atmospheric pressure. It is what

[0008]

[Means for solving the problem]

 Thus, the first invention of the present application is that in a heat insulating body in which a space between two facing face members is made empty, the facing faces of the double-sided members are arranged at different positions. A plurality of ribs parallel to each other are provided in a protruding manner, and rigid wire rods intersecting with the ribs are mounted parallel to each other on one or both of the facing surfaces.

A second invention is a heat insulating body in which a space between two facing surface members is evacuated, and a net coarsely braided with a rigid wire is provided in the space. And

A third aspect of the present invention is a heat insulation body in which a space between two facing surface members is evacuated, and rigid wires are arranged in parallel between the both surface members. Is characterized in that at least three layers are provided so that the wire rods forming the adjacent layers intersect each other.

[0011]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of the first device.

Reference numeral 1 denotes a heat insulating container as a heat insulating body of the present invention, and 2 and 3 denote an outer container and an inner container, respectively, as surface members, and a space between the outer container 2 and the inner container 3. Place 4 is evacuated.

A large number of ribs 5 extending in the circumferential direction are squeezed inward on the inner peripheral surface of the outer container 2, and the outer peripheral surface of the inner container 3 also has a position different from that of the ribs 5. In addition, the rib 5 and a number of horizontal ribs 6 are squeezed outward.

Although the ribs 5 and 6 are formed as ring-shaped ribs in the drawing, they may be formed in a spiral shape.

A large number of piano wires 7 as rigid wire members are attached to the outside of the inner container 3. The piano wire 7 intersects with the rib 6 and extends in the length direction of the heat insulating container 1, and is in contact with the inner container 3 at the top of the rib 6.

The piano wire 7 is attached to the inner container 3 by welding at both ends thereof, the inner container 3 having the piano wire 7 attached is inserted into the lining material 2, and the opening is welded to vacuum the space 4. Then, the heat insulating container 1 is prepared.

3 and 4 show another embodiment of the first invention.

In this embodiment, the ribs 5 and 6 are squeezed out in the length direction of the outer container 2 and the inner container 3. The piano wire 7 is in contact with the top of the rib 6 and is spirally wound around the outer circumference of the inner container 3, and both ends thereof are attached to the inner container 3 by welding. A plurality of ring-shaped piano wires may be attached to the inner container 3.

Although the ribs 5 and 6 are formed by squeezing the wall surfaces of the outer container 2 and the inner container 3 in the above-described embodiment, the ribs 5 and 6 are formed on the inner circumference of the outer container 2 and the outer circumference of the inner container 3. A rib may be formed by forming a thick portion or attaching another member.

Although the piano wire 7 is attached to the inner container 3 in the above-described embodiment, it may be attached to the inside of the outer container 2 in contact with the rib 5 and the inner container 3 may be inserted therein. , Some of them can be attached to the outer container 2, and others can be attached to the inner container 3. Further, the rigid wire is not limited to a piano wire, and a wire made of other material having sufficient rigidity and strength can be used.

FIG. 5 shows an embodiment of the second invention.

In this embodiment, a net 8 such as a wire net formed by roughly braiding a rigid wire material 9 such as a piano wire is arranged between the outer container 2 and the inner container 3.

The net 8 can be arranged between the outer container 2 and the inner container 3 by winding the net 8 around the outer circumference of the inner container 3 and inserting it into the lining material 2. 8 may be fitted between the outer container 2 and the inner container 3. Alternatively, the nets 8 having a small width may be arranged and arranged between the outer container 2 and the inner container 3. It is also possible to arrange the nets 8 in a double or more stack.

Next, FIG. 6 shows an embodiment of the third invention.

In this embodiment, a rigid wire 10 such as a piano wire is attached to the outer periphery of the inner container 3 in three layers.

That is, a large number of wire rods 10a of the first layer are attached to the outer circumference of the inner container 3 in parallel along the length direction of the heat insulating container 1, and a large number of the wire rods 10b of the second layer are provided on the outer side thereof. , Are attached in parallel along the circumferential direction of the heat insulating container 1. Further, on the outer side thereof, a large number of third-layer wire rods 10b are attached in parallel along the circumferential direction of the heat insulating container 1.

In this embodiment, the wire rods 10 are attached in three layers, but it is also possible to attach four or more layers of wire rods 10 while intersecting the wire rods 10 of adjacent layers.

Further, as shown in the relationship between the wire rod 10a and the wire rod 10c in FIG. 6, the wire rods 10 constituting one layer are preferably attached in parallel to each other and at staggered positions.

In the above embodiment, the wire 10 is attached to the outer circumference of the inner container 3. However, the wire 10 can be attached to the inner circumference of the outer container 2, and the wire 10 constituting a part of the inner layer is formed. The wire 10 forming the outer layer may be separately attached to the outer circumference of the inner container 3 and the inner circumference of the outer container 2.

[0030]

[Action]

 In the first invention, when the outer container 2 is crushed inward or the inner container 3 swells outward, the ribs 5 and 6 come into contact with the piano wire 7 and are deformed by atmospheric pressure. , 6 and the piano wire 7 do not cause the outer container 2 and the inner container 3 to come into direct contact with each other to lose the heat insulating property.

Although heat conduction between the outer container 2 and the inner container 3 may occur via the piano wire 7, since the piano wire 7 is rigid, the contact with the ribs 5, 6 becomes point contact, and Since the ribs 5 and 6 are located at different positions and the heat transfer path is large, the heat conduction through the piano wire 7 is extremely small and the heat insulation is not impaired.

Similarly, in the second invention, the net 8 supports the deformation of the outer container 2 and the inner container 3 and prevents the outer container 2 and the inner container 3 from being deformed and directly contacting each other. Since the wire material 9 forming the net 8 is wavy, the contact between the outer container 2 and the inner container 3 and the net material 8 is point contact, and the contact between the wire materials 9 is also point contact. The heat conduction through is very small.

Next, also in the third invention, the plural layers of wire rods 10 support the deformation of the outer container 2 and the inner container 3 and prevent the outer container 2 and the inner container 3 from directly contacting each other and losing the heat insulating property.

Further, the contact between the innermost layer wire 10a and the inner container 3 and the contact between the outermost layer wire 10c and the outer container 2 are line contacts, respectively, and heat conduction is relatively likely to occur. However, there is at least one layer of wire rod 10b interposed between them, and the contact between the wire rod 10b and the wire rods 10a and 10c is point contact, and if more than four layers of wire rods 10 are provided, Since the contact between the wire rods 10 in the layer between them is also a point contact, the heat conduction is extremely small.

Further, by disposing the wire rod 10a and the wire rod 10c at different positions as in the embodiment, the distance between the wire rod 10b and the wire rod 10a in contact with the wire rod 10c is increased, and the heat conduction is further reduced. Become.

[0036]

[Effect of the device]

 Therefore, according to the present invention, the piano wire 7, the mesh 8 or the wire rod 10 interposed between the outer container 2 and the inner container 3 supports the force of the outer container 2 and the inner container 3 attempting to approach each other. Therefore, the outer container 2 and the inner container 3 do not directly contact with each other, so that the heat insulating property is not lost.

Moreover, the piano wire 7, the net 8 or the wire 10 forms a heat transfer path by coming into contact with the outer container 2 and the inner container 3, but in the heat transfer path between the outer container 2 and the inner container 3. Since at least two point contacts are formed, the heat transfer is extremely small and the heat insulation of the heat insulation container is not impaired.

Further, in the first device and the embodiment of FIG. 6, since the distance between the point contact portion on the outer container 2 side and the point contact portion on the inner container 3 side is large, the heat transfer path becomes long, The heat transfer is even smaller.

In the embodiment shown in FIGS. 1 and 2, the outer container 2 and the inner container 3 are formed with the ribs 5, 6 in the circumferential direction, so that the ribs 5, 6 themselves are the outer container 2 and the inner container. It strengthens 3 and is difficult to deform.

In general, in the vacuum double bottle type heat-insulating container 1, the outer container 2 and the inner container 3 are connected only at the peripheral edge of the opening, so that the contents are stored when an external force is applied. The heavy inner container 3 may swing with respect to the outer container 2 and cause various inconveniences. According to the present invention, the piano wire 7, the net 8 or the wire 10 causes the container 3 to swing. Never.

[0041]

[Applicable range of device]

 Although the above description refers to a heat-insulating container, the present invention is not required to have a function as a container such as a foam bottle or a heat-insulating tank, but has two face members facing each other. It can be widely applied to a heat insulator having a vacuum in a space therebetween.

As such a heat insulator, for example, there is a tube having a high degree of heat insulation in which the inner and outer tubes are closed at both ends of the double tube to create a vacuum between the double tubes. With regard to the above, the present invention can be applied by providing a piano wire 7, a net 8 or a wire rod 10 between the double tubes.

Further, regarding a heat insulating panel in which two plates are opposed to each other with a space therebetween and the periphery thereof is closed and the inside thereof is evacuated, a piano wire 7, a net 8 or a wire rod 10 is provided between the two plates. Therefore, the present invention can be applied.

[Brief description of drawings]

FIG. 1 is a central longitudinal sectional view of an embodiment of the first device.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a central longitudinal sectional view of another embodiment of the first invention.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a cross-sectional view of the main part of the embodiment of the second invention.

FIG. 6 is a cross-sectional view of the main part of the third embodiment of the invention.

[Explanation of symbols]

 1 Heat-insulating container (insulator) 2 Outer container (face member) 3 Inner container (face member) 4 Vacancy 5,6 Rib 7 Piano wire (wire material) 8 Net 9 Wire material 10 Wire material

Claims (3)

[Scope of utility model registration request] 1. In a heat insulator (1), wherein a space (4) between two facing surface members (2, 3) is evacuated,
A large number of parallel ribs (5, 6) are provided at different positions on opposite surfaces of the double-sided members (2, 3) so as to project from each other, and one or both of the opposite surfaces are provided with the ribs. A heat insulator characterized in that rigid wire rods (7) intersecting the ribs (5, 6) are attached in parallel to each other. 2. A heat insulator (1) in which a space (4) between two facing surface members (2, 3) is evacuated,
A heat insulator characterized in that a net (8) roughly braided with a rigid wire (9) is provided in the void (4). 3. A heat insulating body (1) in which a space (4) between two facing surface members (2, 3) is evacuated,
Between the double-sided members (2, 3), at least three layers are provided so that the rigid wire rods (10) are arranged in parallel with each other so that the wire rods (10) forming the adjacent layers intersect each other. Insulation, characterized by