JP5658587B2 - Cooling member - Google Patents

Description

  The present invention relates to a cooling member for reducing the surface temperature of a building, a paved body, or the like.

  In recent years, the so-called “heat island phenomenon” in which the temperature in urban areas is higher than that in the surrounding area has become a problem. One of the causes is the heat storage action of buildings and pavements. Therefore, there is an outer wall structure in which a wall of a building is formed with a porous material, the wall is moistened, and planting is provided on the outdoor side of the wall. In this outer wall structure, the cooling effect of the wall surface can be enhanced by lowering the temperature of the wall surface by the heat of vaporization accompanying the evaporation of water from the wall body and blocking solar radiation by planting (for example, see Patent Document 1). ).

Japanese Patent Laid-Open No. 8-42013

  In the conventional outer wall structure described above, since it is necessary to regularly care for plants (irrigation, pruning of branches, cleaning of fallen leaves, etc.) in order to grow planting, management is difficult and maintenance costs are high. There is a problem.

  This invention makes it a subject to provide the cooling member which solves an above described problem, can reduce the surface temperature of a target object, and can improve the mitigation effect of a heat.

In order to solve the above-described problem, the present invention is a cooling member that includes a water supply pipe and a plurality of water retaining bodies attached to the water supply pipe, and is disposed on the front side of an object such as a building or a pavement. The water retaining body is formed of a porous material, and is attached to the outer peripheral surface of the water supply pipe via a water guide member communicating with the water supply pipe. And the said water conveyance member is formed with the porous material or the cylindrical member, The water in the said water supply pipe is supplied to the said water holding body by the capillary phenomenon of the said water conveyance member, The said water holding body is the said, It is configured to block solar radiation on the object.

In this configuration, the temperature of the water holding body can be lowered by the heat of vaporization accompanying the evaporation of water from the water holding body. And since the surface temperature of a water holding body falls, while radiant heat from a water holding body is reduced, the convection around a water holding body is accelerated | stimulated. Thereby, since the air around a water holding body is cooled, the surface temperature of a target object can be reduced.
Furthermore, since the solar radiation to the object can be blocked by the plurality of water retaining bodies, the cooling effect of the air between the cooling member and the object can be enhanced, and the heat mitigating effect can be improved.

  For example, when the water holding body is formed small and a large number of water holding bodies are dispersed and attached to the water supply pipe, the heat can be mitigated in the same manner as the shade cooling action by the leaves of the plant. Moreover, the influence which it has on a cityscape can be reduced by making a water retaining body into the shape and color like a leaf.

  Furthermore, when a plurality of branch parts are formed in the water guide member, and the water holding bodies are attached to the branch parts, the number of water holding bodies can be increased. And since a leaf group can be enlarged by forming a branch-like branch part in a water conveyance member, and attaching a leaf-shaped water retaining body to a branch part, the mitigation effect of heat can be heightened.

  In addition, water is supplied to the water holding body by the capillary phenomenon of the water guiding member, and the water supply structure is simplified, so that the manufacturing cost can be reduced and the management can be easily performed, and the maintenance cost is reduced. be able to.

  In addition, when a photocatalyst such as titanium oxide is coated on the surface of the water retention body, the water retention body can be self-cleaned by the hydrophilic action of the photocatalyst and harmful substances in the air can be decomposed by the oxidation action of the photocatalyst.

  In addition, when a reflection layer is formed on the surface of the water retaining body or a metal plate is laminated on the surface of the water retaining body to increase the reflectance on the surface side of the water retaining body, the surface side of the water retaining body Since the solar radiation is reflected and the temperature rise of the water holding body can be suppressed, the cooling effect by the evaporation of water from the water holding body can be enhanced.

In the cooling member of the present invention, the effect of mitigating heat can be improved by lowering the surface temperature of the object and blocking solar radiation.
Moreover, since the water supply structure is simplified, the manufacturing cost can be reduced, the management can be easily performed, and the maintenance cost can be reduced.

It is the figure which showed the cooling member of this embodiment, (a) is a top view, (b) is AA sectional drawing of Fig.1 (a). It is the perspective view which showed the sunshade using the cooling member of this embodiment. It is the figure which showed other embodiment, and is a top view of the structure which formed the branch-shaped branch part in the water conveyance member. It is the figure which showed other embodiment, (a) is a perspective view of the structure which formed the reflection layer in the water holding body, (b) is a perspective view of the structure which laminated | stacked the metal plate on the water holding body. It is the figure which showed other embodiment, and is a side view of the structure which attached the cooling member to the wall surface of the building. It is the figure which showed other embodiment, and is a perspective view of the structure which provided the cooling member on the rooftop of the building. It is the figure which showed other embodiment, and is a side view of the structure which imitated the tree with the cooling member.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
As shown in FIG. 2, the cooling member 1 of the present embodiment is arranged on the front side of the surface 2 a of the object 2 such as a building or a paved body, thereby constituting the awning 3 of the object 2.

  As shown in FIG. 1A, the cooling member 1 includes a water supply pipe 10 and a plurality of water holding bodies 20 attached to the water supply pipe 10, and the water holding body 20 is provided with a water supply pipe via a water guide member 30. 10 is attached.

The water supply pipe 10 is a plastic hose having plasticity, one end is connected to water supply means (not shown), and the other end is closed.
In addition, the structure of the water supply means for supplying water into the water supply pipe 10 is not limited. For example, clean water may be supplied into the water supply pipe 10 or rainwater stored in a tank may be supplied from the water supply pipe 10. You may supply in.

A mounting hole 11 into which a proximal end portion of a water guide member 30 to be described later is inserted passes through the peripheral wall portion of the water supply pipe 10. In the present embodiment, the plurality of mounting holes 11 are formed at predetermined intervals in the longitudinal direction of the water supply pipe 10.
The position of the attachment hole 11 corresponds to the attachment position of the water retaining body 20. Therefore, the interval and opening direction of the mounting holes 11 are set in accordance with the size of the water retaining body 20 and the arrangement of the water retaining bodies 20.

  The water guide member 30 is a rod-shaped member formed of a porous material such as ceramic. As shown in FIG. 1B, the water guide member 30 has a proximal end portion inserted into the attachment hole 11 of the water supply pipe 10, and a distal end portion protruding from the outer peripheral surface of the water supply pipe 10. Further, the proximal end portion of the water guide member 30 protrudes into the water supply pipe 10.

The water holding body 20 is a plate-like member formed in the shape of a leaf, as shown in FIG. The water retention body 20 is formed of a porous material such as ceramic having water retention. In addition, a photocatalyst 21 such as titanium oxide is coated on both surfaces of the water retaining body 20.
The distal end portion of the water guide member 30 is inserted into the insertion hole 22 formed in the proximal end portion of the water retaining body 20. As described above, the water retaining body 20 is attached to the outer peripheral surface of the water supply pipe 10 via the water guide member 30.

In the cooling member 1 of the present embodiment, as shown in FIG. 2, a large number of water retaining bodies 20 are dispersedly attached to a single water supply pipe 10. Moreover, each water holding body 20 is formed in the shape of a leaf, and the water holding body 20 and the water supply pipe 10 are colored green.
Therefore, by installing the horizontal frame 3a above the object 2 such as a building or a pavement and placing the plurality of cooling members 1 with the water supply pipes 10 appropriately curved on the horizontal frame 3a, An awning 3 can be formed that mimics the leaves of a plant.

The cooling member 1 of the present embodiment as described above has the following operational effects.
When water is supplied from a water supply means (not shown) into the water supply pipe 10 shown in FIG. 1B and the water is stored in the water supply pipe 10, the water in the water supply pipe 10 is guided by the capillary phenomenon of the water guide member 30. The water is sucked into the member 30 and supplied to the water retaining body 20 from the tip of the water guide member 30.

When the water retaining body 20 becomes wet in this way, the temperature of the water retaining body 20 decreases due to the heat of vaporization accompanying the evaporation of water from the surface of the water retaining body 20.
And since the surface temperature of the water holding body 20 falls, while the radiant heat from the water holding body 20 is reduced, the convection around the water holding body 20 is promoted. Thereby, since the air around the water holding body 20 is cooled, the surface temperature of the target object 2 can be lowered.

  Furthermore, as shown in FIG. 2, the air between the awning 3 and the object 2 is formed by forming the awning 3 using the cooling member 1, and blocking the solar radiation on the object 2 by a large number of water retaining bodies 20. Since the cooling effect can be enhanced, the heat mitigating effect can be improved (for example, the perceived temperature is lowered by about 2 to 3 ° C.).

  Moreover, by making the water retaining body 20 into a leaf-like shape and color, the influence on the urban landscape can be reduced, and the heat can be mitigated in the same manner as the cooling action by the plant leaves.

  In addition, water is supplied to the water holding body 20 by the capillary phenomenon of the water guide member 30 shown in FIG. 1B, and the water supply structure is simplified, so that the manufacturing cost is reduced and the management is easily performed. And maintenance costs can be reduced.

  In addition, when the temperature around the object is lowered and it is not necessary to cool the air around the water retaining body 20, it is not necessary to store the water in the water supply pipe 10. Thus, the cooling effect can be easily adjusted according to the surrounding environment of the object.

  Further, in the cooling member 1, the water retention body 20 is self-cleaned by the hydrophilic action of the photocatalyst 21 painted on the surface of the water retention body 20, and harmful substances in the air can be decomposed by the oxidation action of the photocatalyst 21.

The embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.
For example, in the embodiment, as shown in FIG. 1B, the water retaining body 20 and the water guiding member 30 formed of a porous material are configured as separate members, but the water retaining body 20 and the water guiding member 30 are May be formed integrally.

  Moreover, although the water guide member 30 is formed of a porous material, the water guide member may be formed of a cylindrical member made of resin or metal. In this configuration, the capillary phenomenon can be generated by reducing the inner diameter of the cylindrical member.

  In addition, as shown in FIG. 3, when a plurality of branch portions 31 are formed in a branch shape in the water guide member 30 and the water retaining body 20 is attached to each branch portion 31, the leaf group can be enlarged. The relaxation effect can be enhanced.

Moreover, in the said embodiment, as shown to Fig.1 (a), although the water holding body 20 is formed in the shape of a leaf, the shape and color are not limited, A rod-shaped or spherical water holding body is used. You may attach to a water supply pipe.
Further, the arrangement of the plurality of water retaining bodies 20 is not limited, and the water retaining bodies 20 may be attached to the water supply pipe 10 in a line.

In addition, as shown in FIG. 4A, when the reflection layer 23 is formed on the surface of the water retaining body 20 using a highly reflective paint or the like and the reflectance on the surface side of the water retaining body 20 is increased, the water retaining body Since solar radiation is reflected on the surface side of the water and the temperature rise of the water retaining body can be suppressed, the cooling effect of the water retaining body 20 due to water evaporation can be enhanced.
Further, as shown in FIG. 4B, a metal plate 24 can be laminated on the surface of the water retaining body 20 to increase the reflectance on the surface side of the water retaining body 20. In this configuration, by forming a plurality of holes 24a in the metal plate 24 and exposing the surface of the water retaining body 20, moisture evaporation is performed on both the front and back surfaces of the water retaining body 20, so that the cooling effect can be enhanced. In addition, you may use a flat plate or a metal-mesh metal plate, The shape is not limited. Further, a metal plate may be laminated on a part of the surface of the water retaining body 20.

Moreover, as shown in FIG. 5, you may comprise so that the some frame 4 with which the cooling member 1 was attached may be attached to the wall surface of the building 5, and a wall surface may be covered with the leaf group of a plant.
Moreover, as shown in FIG. 6, the turf 6 is imitated by the cooling member 1 using the water retaining body 20A formed in the shape of grass, and the turf 6 is laid on the roof of the building 5 so that the roof is greened. You may comprise.
In these structures, since the cooling member 1 can reduce the surface temperature of the building 5, the indoor cooling efficiency can also be increased.

Moreover, as shown in FIG. 7, the cooling member 1 can be attached to a trunk or a branch installed on the ground to imitate a tree 7 or a tree 8. Moreover, the leaf group 9 can also be imitated in a flower bed or a pot using the cooling member 1.
As described above, by using the cooling member 1 to imitate natural trees and grass, it is possible to reduce the heat while reducing the influence on the cityscape.

DESCRIPTION OF SYMBOLS 1 Cooling member 2 Target object 10 Water supply pipe 11 Mounting hole 20 Water holding body 21 Insertion hole 23 Reflective layer 24 Metal plate 30 Water guide member 31 Branch part

Claims (4)

A water supply pipe and a plurality of water retaining bodies attached to the water supply pipe, and a cooling member disposed on the front side of the object,
The water retaining body is formed of a porous material, and is attached to the outer peripheral surface of the water supply pipe via a water guide member communicating with the water supply pipe.
The water guide member is formed of a porous material or a cylindrical member,
By the capillary phenomenon of the water guide member, water in the water supply pipe is supplied to the water holding body,
The cooling member characterized by shielding the solar radiation to the target object by a plurality of the water retaining bodies.   The cooling member according to claim 1, wherein a plurality of branch portions are formed in the water guide member, and the water retaining body is attached to each branch portion.   The cooling member according to claim 1, wherein a reflection layer is formed on a surface of the water retaining body.   The cooling member according to claim 1 or 2, wherein a metal plate is laminated on a surface of the water holding body.

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