JPH06185132A - Heat insulating system using bubble - Google Patents

Abstract

PURPOSE:To provide a bubble heat insulating system which can strengthen the heat insulating performance temporarily, reduce the detriment due to excessive heat insulating structure, and suppress the costs for constructing the heat insulating structure. CONSTITUTION:An exterior material 1 of double structure is formed from a pair of outer plates 3 between which a gap 5 is interposed, and a bubble spouting nozzle 7 is installed in this gap 5 in the exterior material 1. Through a water delivery hose 9, a water sending device 11 is connected with this nozzle 7. The hose 9 is fitted with a chemicals injecting means 13 which is to produce bubbles in the water to be spouted from the nozzle 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an outer wall of a building,
The present invention relates to a heat insulation system that temporarily improves heat insulation performance of exterior materials such as roofs when necessary.

[0002]

2. Description of the Related Art Conventionally, in order to improve the heat insulating effect of a building, a material having a small thermal conductivity such as glass cotton or urethane is sandwiched between the exterior material and the side of the body to provide a permanent heat insulating structure. It was common to do. In a building having such a heat insulating structure, in summer, heat conduction from high temperature outside air to the inside of the building is reduced to reduce the cooling load, and in the winter, to the outside of the building. The heat conduction will be reduced and the heating load will be reduced.

[0003]

However, in the conventional heat insulating structure, the heat insulating effect is effectively exerted during the cooling and heating peaks in summer and winter, but in the middle of spring and autumn, the heat is not applied to the inside of the building. In some cases, the effect of keeping the heat in is generated, and the heat insulation effect rather adversely affects the natural comfortable temperature environment. Also, constructing a sufficient heat insulation structure based on the summer and winter seasons will increase construction costs,
It was also uneconomical. The present invention has been made in view of the above circumstances, and provides a foam heat insulation system capable of temporarily enhancing heat insulation performance during a period such as summer and winter when a sufficient heat insulation effect is required. The purpose is to reduce the structure construction cost.

[0004]

In order to achieve the above-mentioned object, the structure of the foam heat insulation system according to the present invention is such that an exterior material is formed by a pair of outer plates facing each other across a gap, and the gap of the exterior material is formed. A bubble injection nozzle is disposed in the water supply device, a water supply device is connected to the foam injection nozzle via a water supply pipe, and a chemical injection means for generating bubbles in the water supply ejected from the foam injection nozzle is provided in the water supply pipe. It is what

[0005]

When the water supply device is driven and the water is mixed with the surfactant and the like in the water supply by the chemical injection means, fine water bubbles are generated from the bubble jet nozzle. Water bubbles are ejected into the gap, and the gap is divided into many gaps so that free convection does not occur and the heat conduction path becomes complicated. This allows
The heat resistance of the exterior material increases, the apparent thermal conductivity as a heat insulating material decreases, and the heat insulating performance improves.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the foam insulation system according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a conceptual diagram of the foam insulation system of the present invention. An exterior material 1 is attached to a building (not shown), and the exterior material 1 includes a pair of outer plates 3 with a gap 5 therebetween.
Has a double structure. A bubble jet nozzle 7 is arranged in the gap 5, and the bubble jet nozzle 7 is provided with a water pipe 9
Connected with. A water supply device 11 is connected to the water supply pipe 9, and the water supply device 11 supplies a fluid (water or the like) to the water supply pipe 9 at a constant water pressure.
It is designed to send water. A medicine injection means 13 is connected to the water supply pipe 9, and the medicine injection means 13 mixes a surfactant in the water supply in the water supply tube 9 so that fine water bubbles are generated when the water supply is ejected from the foam ejection nozzle 7. Has become.

In the foam heat insulating system having the above-described structure, the gap 5 is normally filled with air during normal operation (when the system is stopped), and the heat on both sides of the exterior material 1 is conducted using air as a medium. The Rukoto. Further, when a temperature difference occurs on both sides of the exterior material 1, air freely convects and heat conduction is promoted. On the other hand, when improving the heat insulating performance, the water supply device 11 is driven and the surfactant is mixed into the water supply by the chemical injection means 13. The water mixed with the surfactant causes fine water bubbles to be generated when ejected from the bubble ejection nozzle 7. When the water bubbles are ejected into the gap 5, the gap 5 is filled with the water bubbles. By filling the gap 5 with bubbles, the gap 5 is partitioned into many voids, and free convection does not occur.
In addition, since the air is partitioned into many voids by the bubbles, the heat path from both surfaces of the exterior plate becomes complicated, and the thermal resistance increases. As a result, the exterior material 1 filled with water bubbles
Has a smaller apparent thermal conductivity as a heat insulating material and improves the heat insulating performance.

FIG. 2 is a conceptual diagram of another embodiment of the foam insulation system. The same members as those shown in FIG. 1 are designated by the same reference numerals, and a duplicate description will be omitted. In this embodiment, the exterior material 21 does not have a double structure, and bubbles are jetted directly onto the surface of the exterior material 21 to form the heat insulating layer 23. According to this embodiment, as in the above-described embodiments, the heat insulating performance is improved, the structure of the exterior material 21 is simplified, and the construction cost can be reduced.

In the above-mentioned embodiments, water is mixed with a surfactant to generate water bubbles. However, a foam material is generated by other fluid or gas (carbon dioxide etc.) having a small thermal conductivity. However, in this case, the thermal conductivity of the foam material itself becomes small, so that the heat insulation performance can be further improved. Further, in the above-described foam heat insulation system, if the degree of constriction of the foam jet nozzle 7, the water pressure of the water supply device 11, and the injection amount of the medicine injection means 13 can be controlled, the size of the water bubble and the thickness of the water bubble layer can be changed. According to this, it becomes possible to change the heat insulation performance to a desired value.

Further, the exterior material 1 in the above-described foam heat insulation system is hermetically sealed as a whole by connecting a plurality of hermetically sealed ones provided with a foam discharge port or by connecting ones in an open state. One gap 5 may be formed. The bubbles may be discharged by draining them as they are or by circulating them after collecting them.

[0011]

As described in detail above, according to the foam heat insulation system of the present invention, the heat insulation performance can be temporarily enhanced only when a high heat insulation effect is required such as in summer and winter. Therefore, it is not necessary to permanently build an excessive heat insulating structure, and the heat insulating structure building cost can be reduced. In addition, it is possible to prevent adverse effects when heat insulation is unnecessary, for example, heat retention in the middle period, which is caused by constructing an excessive heat insulation structure.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of the foam insulation system of the present invention.

FIG. 2 is a conceptual diagram of another embodiment of the foam insulation system of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Exterior material 3 Outer plate 5 Gap 7 Bubble injection nozzle 9 Water supply pipe 11 Water supply device 13 Chemical injection means

Claims (1)

[Claims] 1. An exterior material is formed by a pair of outer plates facing each other across a gap, a bubble injection nozzle is disposed in the gap of the exterior material, and a water supply device is provided through the water supply pipe to the bubble injection nozzle. A foam heat insulation system, characterized in that the water supply pipe is provided with a chemical injection means that is connected to the water injection nozzle and generates a foam in the water supply ejected from the foam injection nozzle.