JP2003328462A - Structure of cooling wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To overcome problems such that an external wall is wholly thickened and electric power for driving an outside-air circulating fan is required, due to the formation of an air passage between an interior-wall side and an exterior- wall side and the installation of the outside-air circulating fan in the air passage, in terms of a conventional exterior wall structure, and such that moisture in the exterior wall flows into a building so as to cause a rise in humidity inside the building, because the inside of the building is cooled by ventilating outside air through the exterior wall, which is made wet by water supply, in a natural cooling device. <P>SOLUTION: A structure of a cooling wall for cooling the inside of the building by evaporating water from outside the exterior wall is composed of the exterior wall of the building in which at least a part of the exterior wall is composed of a porous wall material with water permeability, a waterproof wall which is provided inside the exterior wall, a water supply means for injecting the water into the exterior wall from the side of the waterproof wall, and a temperature controller for controlling the temperature of the inside which is surrounded by the exterior wall. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling wall structure for cooling the inside of a building or the like (hereinafter referred to as a building) by utilizing an evaporative cooling action of water. It is. [0002] Conventionally, there are known a method of introducing cool air into a room by natural ventilation and a cooling method using evaporative cooling. For example, JP-A-6-193901 discloses that an air passage for circulating air is formed between a metal foam forming an inner wall surface side and a heat insulating material forming an outer wall surface side, and water is impregnated into the metal foam body. The structure of the outer wall provided with a cooling device for cooling the metal foam and air by evaporating water to cool the room is disclosed. Japanese Patent Application Laid-Open No. 8-42013 discloses that an outer wall of a building is formed of a porous wall material having a water retention property, and the wall material is provided with a water supply channel that is moistened, and is ventilated in contact with the wall material. A natural cooling device having a ventilation path and planting outside the outer wall is disclosed. However, in the structure of the outer wall provided with the cooling device disclosed in Japanese Patent Laid-Open No. 6-193901, a metal foam forming the inner wall and a heat insulating material forming the outer wall are disclosed. An air passage for circulating air is formed between the air passage and the air passage, and a fan for circulating outside air is used in this air passage. Therefore, the outer wall is made of outer wall material, heat insulating material,
Since it is composed of a metal foam and an air passage, there is a problem that the entire outer wall becomes thick and that power must be constantly supplied to drive the fan. Also, in the natural cooling device disclosed in JP-A-8-42013,
Since the inside of the building is cooled by ventilating outside air from outside to inside of the outside wall with respect to the outside wall moistened by the water supply, moisture evaporated from the outside wall flows into the inside of the building together with the outside air and flows into the inside of the building. There is a problem that the humidity of the water increases. The present invention has been made to solve these problems, and an object of the present invention is to provide a cooling device which has a simple structure, requires little electric power, and does not increase the humidity inside a building. The purpose is. [0005] In order to solve the above-mentioned problems, according to the present invention, at least a part of the outer wall is formed of a porous wall material having water permeability; A waterproof wall provided, water supply means for injecting water from the waterproof wall side to the outer wall, and a temperature control device for controlling an internal temperature surrounded by the outer wall. The amount of water to be injected into the building is adjusted, and water is evaporated from the outside of the outer wall to cool the inside of the building. As a result, the pores of the porous wall material, which is the outer wall, are continuously filled with water, and the water is evaporated from the outer portion of the outer wall. At this time, heat of vaporization is taken from the outer wall, and the water is surrounded by the outer wall. Cooling the inside of the building. Further, by using a porous wall material having continuous pores from the outside of the outer wall to the inside, by injecting water from the inside of the outer wall using a water supply means such as a water pipe,
The pores of the porous wall material are continuously filled with water, and the cooling wall is operated for a long time. Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front sectional view showing an example of an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of an outer wall portion of FIG. 1 and 2, an outer wall 1 is formed by using a porous material such as unglazed brick, concrete block, or foamed metal so as to provide a space 2 inside a building. A waterproof wall 11 such as a waterproof sheet that does not allow moisture to pass through is provided inside the outer wall 1, and a water pipe 3 which constitutes a part of a water supply means along the waterproof wall 11 is provided inside the building. Are arranged. A branch pipe 31 that penetrates through the waterproof wall 11 and contacts the inside of the outer wall 1 is provided at an appropriate position on the ceiling surface and each side surface of the outer wall 1, branching off from the water pipe 3. A water supply pipe 32 penetrating the outer wall 1 and communicating with the inside of the building is provided from an arbitrary position outside the building, and the water supply pipe 32 is connected to the water pipe 3 via an electromagnetic valve 4. The electromagnetic valve 4 is connected to a temperature / temperature controller 6, a temperature sensor 5, and a battery 7 constituting a temperature control device for controlling the temperature inside the building, and opens and closes the electromagnetic valve 4 based on an arbitrarily set temperature. Is automatically controlled. In addition, the solenoid valve 4 and the temperature controller 6 operate with the electric power supplied from the battery 7. The branch pipe 31 is provided at an appropriate position on the ceiling surface and each side surface except the floor surface so as to penetrate the waterproof wall 11 and abut on the outer wall 1. The water substantially uniformly penetrates the bubbles on the ceiling surface and the outer walls on each side surface through the branch pipe 31. Since the outer wall 1 is formed of a porous material, water is continuously injected into continuous pores inside the outer wall, and when the water evaporates 13 from the outer wall 1, heat of vaporization is taken from the outer wall 1. As a result, the air in the interior space of the building is cooled. Depending on the outside temperature and sunshine conditions,
Although the evaporation amount of water on the ceiling surface and each side is different, when the water evaporates from the outside of the outer wall, the water is filled from the inside of the outer wall. It is not necessary to control. Since the waterproof wall 11 is provided inside the outer wall 1, the water once injected into the outer wall 1 does not leak into the space 2 inside the building, so that an increase in humidity in the space 2 is suppressed. can do. When an arbitrary temperature is set by a temperature control device installed in the space 2 inside the building, the temperature inside the space 2 is sensed and controlled by the temperature sensor 5, and the solenoid valve 4 is controlled accordingly. The amount of water to be filled is adjusted. Since the structure of the cooling wall of the present invention is constructed as described above, the water filled in the bubbles can be obtained simply by injecting water into the pores of the outer wall formed of the porous material. Evaporates from the outside of the outer wall, thereby cooling the inside of the space surrounded by the outer wall. In addition, since the power required for driving the temperature sensor and solenoid valve, etc. is sufficient for the battery,
It can be applied to buildings in areas without power supply facilities.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front sectional view showing an example of an embodiment of the present invention. FIG. 2 is an enlarged sectional view of an outer wall portion of FIG. [Description of Signs] 1 outer wall 2 space 3 water pipe 4 solenoid valve 5 temperature sensor 6 temperature controller 7 battery 11 waterproof wall 13 evaporation 31 branch pipe 32 water supply pipe

Claims (1)

Claims: 1. An outer wall of a building in which at least a part of an outer wall is made of a porous wall material having water permeability, a waterproof wall provided inside the outer wall, and a side of the waterproof wall. A water supply means for injecting water into the outer wall, and a temperature control device for controlling the temperature of the interior surrounded by the outer wall.The temperature control device adjusts the amount of water to be injected into the outer wall, and The structure of the cooling wall, which cools the inside of the building by the heat of vaporization.