JPS5927192A - Latent heat accumulating body and using method thereof - Google Patents

Abstract

PURPOSE:To increase the total surface area of vessels and improve the heat transmitting property of the vessels by a method wherein a multitude of small vessels, accommodating a latent heat accumulating substance, are dispersed to use them. CONSTITUTION:The latent heat accumulating body 1 is consisting of an enclosed vessel of a material having relatively good heat conducting property and the latent heat accmulating substance sealed into the enclosed vessel. The latent heat accumulating substance is consisting of paraffin, calcium shloride.6H2O or the like. Upon using, the latent heat accumulating body 1 is thrown into a heat accumulating tank 2, utilizing a space between the base beams of a building and the heat medium, such as air, water or the like, is flowed through a path 3, then, heat exchange is effected between the heat accumulating body and the medium may be heated or cooled.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a latent heat storage body and a method of using the same.

A latent heat storage body stores and radiates heat by utilizing the melting and isotherm of a substance, and has the advantage of having a large heat capacity. Furthermore, the material itself is inexpensive. However, the containers that contain them and their usage have not been sufficiently developed, and they are not used much.

In other words, in the past, the container was an integral container with a cylindrical or flat plate shape as shown in Figure 1, so it could not be used directly indoors by fixing it in a solar-irradiated area of a greenhouse. Although this was advantageous, the container had thick walls to prevent deformation, which not only made it expensive, but also impeded thermal conductivity. It is also not suitable for storing heat for heating and cooling multiple rooms in a limited space.

There are two methods of use: one in which the heat storage material is dispersed in a large number of containers, and the other in which the heat storage material is deposited in a heat storage facility.

That is, the latent heat storage body/according to the present invention, as shown in FIG. 2, is a large number of single particles in which a latent heat storage substance is sealed in a closed container made of a material with relatively good thermal conductivity. . Examples of latent heat storage materials include paraffin and calcium chloride, but the latter is cheaper. However, since filtered water salt calcium chloride is highly corrosive and hygroscopic, it is preferable to use a container made of coated metal or synthetic resin.

In this example (FIG. 2), the shape of the container was spherical. By doing this, the containers can be brought into contact with each other at a minimum of 0 point contact, and the contact area with the surrounding heating medium (air, water, etc.) can be increased.Since there are no expanded parts, the container can be made resistant to deformation and can be made thinner.

Note that there are advantages to using different sizes of containers, which will be described later.

Figure 3 shows an example of how to use a granular latent heat storage body, in which the latent heat storage body is placed independently or deposited in a heat storage tank using between the foundation beams of a building. It is something. When a heat medium such as air or water is circulated through the passage 3, heat is exchanged with the heat medium, and heat is stored and radiated.

In this example as well, the heat storage body was made spherical. In this case, the appropriate diameter is about 1Qcm.

Furthermore, in this example, heat storage bodies of different sizes were mixed to stabilize heat storage and heat radiation.

In other words, small ones are made to have a size that repeatedly stores heat in a period of several hours to ten hours, and large ones are made to repeatedly accumulate heat in a period of several weeks to several hours, and by mixing these in an appropriate ratio, extreme Prevents heat accumulation and heat radiation.

Also, by mixing things of different sizes,
Increasing the heat storage capacity by improving the filling properties of the heat storage body,
In addition, by increasing the number of contact points between the heat storage bodies, deformation due to stress concentration is reduced.

In addition, if the size of the heat storage tank has a margin, the number of heat storage bodies can be reduced or used in combination with crushed stone to achieve the optimal heat capacity that corresponds to the heat load of the building.

As described above, in the present invention, since the latent heat storage material is distributed and used in a large number of small containers, not only can the surface area of the container be sufficiently large, but also the container's profit margin can be reduced. It has the advantage of saving money and improving thermal conductivity.

Moreover, if this is filled or deposited in a heat storage tank, the heat storage performance can be increased. In particular, if this is used in the stage d, the heat storage tank itself can be made smaller, which in combination with reducing its heat loss will be economical.

[Brief explanation of the drawing]

FIGS. 1 and 2 are perspective views of latent heat storage bodies, with FIG. 7 showing a conventional one and FIG. 2 showing one according to the present invention. FIG. 3 is a sectional view of a heat storage tank showing a state in which the method of the present invention is implemented. 1: Latent heat storage body 2 = Heat storage tank 3: Heat medium path Patent applicant Obayashi Co., Ltd. Representative Yu Yasu - Figure 1 Section 2v! J Figure 3

Claims (2)

[Claims] (1) A latent heat storage body characterized in that a latent heat storage material is distributed and housed in a large number of closed containers. (2) The latent heat storage body according to claim 1, wherein the closed container is spherical. (, 7) f! is characterized in that a large number of latent heat storage bodies each containing a latent heat storage substance in a closed container are deposited in a heat storage tank, and heat is exchanged with a heat medium passing through the tank. +Method for heat storage body heating body. (lI) 14. A method of using a latent heat storage body according to claim 3, wherein the heat storage bodies have different sizes. (Left) A method of using a latent heat storage body according to claim 3 or 7, wherein the latent heat storage body is spherical.