JPS58190693A - Heat transfer device - Google Patents

Abstract

PURPOSE:To make it possible to transfer a large amount of heat through a small amount of heat transfer medium by a method wherein a number of heat transfer elements are mixed into a heat transfer fluid whose specific gravity becomes larger when a liquid in each of the heat transfer elements is vaporized and smaller when the liquid is not vaporized, than the specific gravity of the heat transfer element. CONSTITUTION:The spherical heat transfer element 1 mixed in large numbers into the heat transfer fluid 2 is formed of a vessel 3 which is made of plastics or rubber and which is deformable resiliently according to the variation of its volume, a low boiling point liquid 4 filled in the vessel 3 and a resiliently deformable vessel 5 housing the vessel 3 in the center thereof and filled with a latent heat accumulating material 6 having a melting point substantially equal to the boiling point of the liquid 4. Thus, when the sunlight A is applied on a pent roof section 8a of a vessel 8, each of the heat transfer elements 1 receives solar heat and the latent heat accumulating material 6 is liquefied so that the liquid 4 is vaporized and the specific gravity of the element 1 becomes smaller than that of the fluid 2. Consequently, the element 1 moves to a bed section 8b of the vessel 8 as it float in the fluid 2 and releases heat into the room. Then, when the element 1 cools, it moves down to the pent roof section 8a again.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat transfer device that transfers heat to different locations and radiates the heat.

Water is often used as a heat transfer medium, but water 411
It has only the capacity of ``'/d, , -'' and has the disadvantage that it requires moving a large amount of water when transferring a large amount of heat.

Also, if you use a latent heat storage material in a liquefied state, you can transfer a lot of heat with a small amount of lid, but when the latent heat storage material returns to a solid state, it is not possible to mechanically move the latent heat storage material back to its original position. Otherwise, it has the disadvantage that it cannot be used repeatedly.

The present invention was made in view of this background, and an object of the present invention is to transfer a large amount of heat with a small amount of heat transfer medium.

The present invention will be explained below according to the embodiments shown in FIGS. 1 and 2.

In the figure, (1), . . . are spherical heat transfer elements, which are mixed in large numbers in a heat transfer fluid (2) composed of water. The heat transfer element (1) is made of a material such as plastic or rubber that can be elastically deformed to follow volume changes, and includes a first container (3) that can be elastically deformed, and a boiling point container housed in the container (3). a liquid (4) with a low water content (for example, chlorofluorocarbon), and a second container (5) that is contained in the center of the first container + a + ay' and is elastically deformable and made of a material such as plastic or rubber.
and a latent heat storage material (6) which is housed in the second container (5) and has a melting point that is approximately the same as the boiling point of the liquid (4). Note that the $1 container (31) is fixed to the approximate center of the second container (5) with a thin film (7).
) receives heat and rises in temperature, the liquid (41) vaporizes and the container (3),
By expanding the container (5) (at the same time, the latent heat storage material (6) melts from solid to liquid), the specific gravity of the heat transfer element (1) becomes smaller than the specific gravity of the heat transfer fluid (2) (1 in the case of water). When the heat transfer element (1) is cooled, the liquid (4) with a low boiling point returns from gas to liquid, and the container (3) is heated so that the specific gravity of the heat transfer element (1) is greater than the specific gravity of the heat transfer fluid (2). ) and the container (5) are set.

A heat transfer device having such a configuration is used, for example, as shown in FIG. 2. That is, the heat transfer fluid (2) is stored in a container (8) that connects the eaves part (8) and the floor part (8b), and a large number of heat transfer elements (1) are mixed in the container (8). I'm forced to.

In such an example of use, the sunlight (entering) is exposed to the eaves (8
a), the heat transfer element (1) receives heat, the latent heat storage material (6) is liquefied, and the liquid (41) is vaporized and the specific gravity of the heat transfer element (1) becomes the heat transfer fluid (2). The specific gravity of the heat transfer element (1) becomes smaller than the specific gravity of the heat transfer element (1), so it floats, and the upper part of the container (8), that is, the floor part, radiates heat into the room ('B) and is cooled, and the liquid (4) returns from gas to liquid, and the specific gravity of the heat transfer element (1) becomes heat. Since the specific gravity of the moving fluid (2) is greater than that of the moving fluid (2), it descends to the lower part of the container (8), that is, the eaves (8a).Therefore, repeated heat transfer is possible.

As described above, the heat transfer device of the present invention stores a liquid with a low boiling point in a first container that can be elastically deformed following a change in volume, and stores latent heat having a melting point approximately equal to the boiling point of the liquid. The material is stored in a second container, the first container and the second container are connected to form a heat transfer element, and the heat transfer element when the liquid is in a liquid state has a specific gravity greater than the specific gravity of the heat transfer element when the liquid is vaporized. The feature is that a large number of heat transfer elements are mixed in a heat transfer fluid whose specific gravity is smaller than Now you can do it.

[Brief explanation of the drawing]

Figures 1 and 2 show a heat transfer device that is an embodiment of the present invention. Figure s1 is a cross-sectional view of a heat transfer element, and Figure 2 is a schematic diagram showing the heat transfer device when used in a building. It is a diagram. Patent applicant Matsushita Electric Works Co., Ltd. Patent attorney Toshimaru Takemoto (two idiots)

Claims (1)

[Claims] (11 A liquid with a low point is stored in a first container that can be elastically deformed to follow volume changes, and a latent heat storage material having a melting point approximately equal to the boiling point of the liquid is stored in a W62 container, The first container and the second container are connected to form a heat transfer element, and heat is transferred into the heat transfer fluid, which has a specific gravity greater than the specific gravity of the heat transfer element when the liquid is vaporized and less than a specific gravity of the heat transfer element when the liquid is vaporized. A heat transfer device characterized by having a large number of moving elements mixed together.