JP2793644B2 - Method of manufacturing heat storage board - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a heat storage board that can be used as a heat storage material by being loaded into a floor, a wall, or a flower pot, or used alone as a heat storage container.

(Prior Art) For the purpose of energy saving and the like, a heat storage material is buried under a floor or inside a wall or the like.

As the heat storage material, a sensible heat storage material such as concrete or brick has been used. However, recently, latent heat storage materials which have a larger amount of heat storage per volume than these sensible heat storage materials and can store and release heat at a constant temperature have been frequently used. The latent heat storage material utilizes latent heat accompanying a phase change between a solid and a liquid, between a solid and a solid, and includes, for example, hydrated salts such as calcium chloride hexahydrate, sodium sulfate decahydrate, and paraffins. Fatty acid esters and the like are known.

Among the latent heat storage materials, the above-described materials become liquid at the time of use, and thus, in the past, they were often used in a state sealed in a sealed container, but such a material has the following problems. Had occurred.

Latent heat storage material undergoes a large volume change during phase transition,
That leads to breakage of the sealed container.

When the sealed container is broken, a large amount of the latent heat storage material flows out therefrom, losing the heat storage function, and the surroundings are contaminated by the leaked latent heat storage material.

Since the inorganic hydratable latent heat storage material has high efflorescence and moisture absorption, if the sealed container is not completely moisture-proof, the heat storage effect is naturally lost.

Therefore, in order to solve this problem, it has been conceived to form a large number of latent heat storage material particles by a method such as encapsulating the latent heat storage material. In such latent heat storage material particles, since the volume change is absorbed by the gap between the particles, the container is not damaged, and even if one latent heat storage material particle is destroyed, the latent heat storage material contained therein is damaged. Due to the small amount of material, the spill does not immediately lead to a loss of heat storage action or surrounding contamination. Moreover, in the case of the inorganic hydratable latent heat storage material as described above, if the surrounding area is covered with a capsule, complete moisture proofing can be performed by itself, and the sealed container itself is not required.

Therefore, when such a latent heat storage material particle is filled in a container to form a heat storage board, there is an advantage that the strength of the container can be reduced as compared with a case where the latent heat storage material is directly charged into the container. .

(Problems to be Solved by the Invention) However, even if the container made of a thin film or the like is filled with latent heat storage material particles because the container does not require strength, sharp objects may be formed when the container is applied to a floor or a wall. If it is easily damaged when hit, the latent heat storage material particles will fall by the time the construction is completed, and the amount of heat storage will decrease, which is a problem.

That is, at present, it is necessary to use a container for filling the latent heat storage material particles with a certain strength. FIGS. 4 and 5 show cross sections of a conventional heat storage board, in which latent heat storage particles 2 'are filled in a container 1', but when the strength of the container 1 'is insufficient, as shown in FIG. This indicates that when the sharp object a hits, the container 1 'is broken and a hole is formed. In addition, there is also a problem that a cantilever may be caused when the cantilever is held.

The present invention has been proposed in view of the above, and it is an object of the present invention to provide a method of manufacturing a heat storage board that retains container strength by reinforcing the internal structure even when using a container having insufficient strength. It is in.

(Means for Solving the Problems) The present invention relates to a method for coating the outer surface of a latent heat storage material particle with a heat-adhesive resin, and forming the latent heat storage material particle into a container having at least an inner surface made of the same material as the coating material. The above-mentioned object is achieved by adopting a configuration in which the material is filled and heated.

(Function) In the present invention, the latent heat storage material particles coated with the heat-adhesive resin are adhered to the container, thereby improving the strength of the container.

(Embodiment 1) FIGS. 1 to 3 show a first embodiment of the present invention. In this embodiment, first, as shown in FIG. It is coated with a heat-adhesive resin 4 such as polyethylene. Then, as shown in FIG. 2, a latent heat storage material particle 2 coated with a thermoadhesive resin 4 is filled in a container 1 in which at least the inner surface is laminated with a material similar to the above-mentioned coating material, and then heated.・ It is characterized by pressurization.

In this case as well, the heat-adhesive resin 4 on the surface of the coated latent heat storage material particles 2 is melted, and as shown in FIG.
Since it is bonded to the inner surface, substantially the same operation and effect as in the first embodiment can be obtained.

In the above embodiment, a heat storage board suitable for use on a floor or a wall has been described, but the present invention can also be applied to a flower pot for cultivating orchids. That is, the orchid is vulnerable to the cold and may hinder its growth during non-heating such as during the nighttime in winter. For this reason, if the heat storage board having the above configuration is appropriately combined with a flower pot or the heat storage board itself is formed as a flower pot, the solar heat can be stored during the day, and the heat can be dissipated at night to prevent a sharp drop in temperature.

(Effects of the Invention) As described above, according to the present invention, the outer surface of the latent heat storage material particles is coated with a thermo-adhesive resin, and the latent heat storage material particles are made of a container having at least an inner surface made of the same material as the coating material. Even when using a container with insufficient strength, the latent heat storage material particles coated with granular material or thermoadhesive resin adhere to the container even when using a container with insufficient strength, equivalent to increasing the thickness of the container Therefore, there is an effect that the strength of the container is improved accordingly.

[Brief description of the drawings]

1 to 3 show process diagrams of a first embodiment of the present invention, and FIGS. 4 and 5 show a conventional example. DESCRIPTION OF SYMBOLS 1 ... Container, 2 ... Latent heat storage material particles 3 ... Granules having adhesive properties, 4 ... Heat-adhesive resin

Claims (1)

(57) [Claims] 1. An outer surface of a latent heat storage material particle is coated with a thermo-adhesive resin, and the latent heat storage material particle is filled in a container having at least an inner surface made of the same material as the coating material and heated. Method of manufacturing heat storage board.