JP2023113192A - Veranda cooling device - Google Patents

Abstract

To develop a technique capable of efficiently cooling a surrounding space on a veranda during the intense summer heat.SOLUTION: A veranda cooling device is provided with a cooling device comprising a screen member 1 which is composed of a water-retaining and flexible material with many small openings, which is hung from a ceiling 21 of a veranda 2 to block solar radiation, and which lowers a temperature of a veranda space 24 and an indoor space 3 by heat of vaporization.SELECTED DRAWING: Figure 1

Description

INDUSTRIAL APPLICABILITY The present invention is a technology for coping with heat in collective housing. In particular, it is a cooling device provided on the veranda.

Global warming caused by climate change in recent years has caused heat stroke damage due to heat in cities and exacerbated typhoon damage (strengthened typhoons due to rising sea surface temperature). Regarding the former in particular, the heat wave (@Tokyo) in July 2018 was designated as a "disaster" by the Japan Meteorological Agency. positioned as an issue.
In general, disasters such as earthquakes and tsunamis occur infrequently but can cause enormous damage. On the other hand, events such as extreme heat and typhoons have a high frequency of occurrence, but the damage is relatively minor.

Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2002-302996) describes the provision of a veranda curtain for hiding laundry.
Patent Document 2 (Japanese Unexamined Patent Application Publication No. 2006-265892) discloses a mechanism that provides a blindfold panel fixed to a balcony spandrel or the like with a support release/rotation function to prevent damage to the fixed portion due to wind pressure.
Patent Document 3 (Japanese Unexamined Patent Application Publication No. 2021-80814) describes that a net is attached to a veranda support to protect it from flying objects.
Patent Document 4 (Japanese Patent Application Laid-Open No. 2007-270457) proposes a stationary type heat environment reducing device to be installed on a veranda. By assembling a plurality of plate-shaped members 6 having water retention and water pumping properties, the main body portion 2 having ventilation holes 17 for circulating air between the adjacent plate-shaped members 6, 6, and a predetermined amount of water inside. A water supply unit 20 that is stored and supplies water to the main unit 2 by immersing a part of the main unit 2 in the water, and a supplementary water unit 23 that supplies water to the water supply unit 20 are provided. Water is supplied from the supply water unit 23 to the water supply unit 20 and stored, and the water stored in the water supply unit 20 is pumped up to the main unit 2 to wet the main unit 2 . By circulating the air through the ventilation holes 17 while the main body 2 is moistened, the air passing through the ventilation holes 17 is cooled by the evaporative cooling effect of the water evaporating from the main body 2 .

Japanese Patent Application Laid-Open No. 2002-302996 JP 2006-265892 A JP 2021-80814 A JP 2007-270457 A

SUMMARY OF THE INVENTION An object of the present invention is to develop a technique capable of efficiently cooling the surrounding space on a balcony in the heat of summer.

The main configuration of the present invention is as follows.
1. A cooling device equipped with a screen member that is composed of water-retentive and flexible materials with many small openings, hangs from the ceiling of the veranda to block solar radiation, and lowers the temperature of the veranda space and indoors by heat of vaporization. A veranda cooling device characterized by being installed.
2. 1. The cooling device has a sprinkler device for supplying water to the screen member. A cooling device for the described veranda.
3. 1. The screen member has an aperture ratio of 40 to 60% and is made of foamed urethane or porous rubber. or 2. A cooling device for the described veranda.
4. 1. The screen member is fixed at its upper end to the ceiling side of the verandah and at its lower end to the waist wall or slab of the veranda. ~3. A cooling device for a veranda according to any one of Claims 1 to 3.

INDUSTRIAL APPLICABILITY The present invention is a heat countermeasure device that is suitable for the natural environment of Japan, where environmental changes are great year round. In Japan, when exposed to hot summers, typhoons, and seasonal winds, indoor and outdoor temperatures rise due to solar radiation. is not suitable for the Japanese environment.
In Japan, there have been traditional customs such as blinds, Yoshizu, Uchimizu, and rain shutters against heat and strong winds, making use of the providence of nature. The present invention embodies this as a device form suitable for modern architectural environments. In verandah spaces such as condominiums, heat is prevented by supplying water to water-retentive screen members such as roll screens that can be used on extremely hot days or when a typhoon is approaching, and cooling the surrounding space with the effect of sprinkling water from the heat of vaporization ( It also has the effect of reducing the air conditioning load.
Especially for residential use, the veranda is designed in a sunny direction (in which sunlight directly acts), so the heat load is high and the cooling effect of the veranda space is large. In addition, it is possible to expect a decrease in temperature by actively creating shade.
A perforated material having an aperture ratio of about 40 to 60% is suitable for the screen member. This can ensure minimum visibility and ventilation/ventilation performance even in harsh environments such as extreme heat and typhoons.
Especially under strong winds, a non-porous planar member generates a large pressure difference between its front and back surfaces, so that a large wind load acts on it. By equalizing the pressure on the front and back sides and reducing the area by making holes, it becomes less than half of the normal wind load, and safety can be ensured. In addition, it is possible to block small objects such as pebbles from flying objects that are the main cause of destruction of exterior materials during strong winds.

Diagram showing an example of a veranda with a cooling device A diagram showing an example of a veranda with a screen member Diagram showing an example of a veranda with a water trough A diagram showing an example roll screen A diagram showing an example of a small screen opening The figure which shows the conventional example of patent document 4.

The present invention is composed of a water-retaining and flexible material having a large number of small openings and hangs down from the ceiling 21 of the veranda 2 to block solar radiation and lower the temperature of the veranda space 24 and the indoor space 3 by the heat of vaporization. It is a cooling device for a veranda to which a cooling device having a screen member 1 is attached.
The present invention embodies traditional practices such as blinds, reed screens, sprinkling water, and shutters, which have been used for a long time against heat and strong winds, as a device form suitable for modern architectural environments. The screen member has a roll screen structure that can be easily used in the veranda space of condominiums, etc. on extremely hot days or when a typhoon is approaching. Cooling has the effect of preventing overheating (reducing the air conditioning load).
In residential applications, the veranda is designed in a direction that receives a lot of sunlight (in which sunlight directly acts), so the heat load is high and the cooling effect of the veranda space is great. In addition, it is possible to expect a decrease in temperature by actively creating shade.
An aperture ratio of 40 to 60% is suitable for the screen member. This is to ensure minimum visibility and ventilation/ventilation performance even in harsh environments such as extreme heat and typhoons. Especially under strong winds, a non-porous planar member generates a large pressure difference between its front and back surfaces, so that a large wind load acts on it. Equal pressure on the front and back by making holes and reducing the area reduces the normal wind load to 1/2 or less, ensuring safety. In addition, it is possible to block small objects such as pebbles from flying objects that are the main cause of destruction of exterior materials during strong winds. Also, the ventilation through the openings accelerates the evaporation of water, and the cooling effect due to the heat of vaporization is increased.
A roofed one is treated as a veranda, and a roofless one is treated as a balcony, but a balcony partially covered with a roof is also treated as the balcony of the present invention.

According to the present invention, a screen member is suspended from the ceiling of the veranda to the slab side of the veranda, and water is supplied to the screen member to evaporate and cool the air in the vicinity of the veranda. Shading and cooling the verandah will reduce the indoor heat load through the windows.
This screen member can be used by the occupant when needed by being removable or a roll screen. Further, the screen member is easy to additionally install or replace.
It also has the effect of blocking dust and pebbles, so it is possible to prevent dirt on the veranda and indoors.
As means for supplying water to the screen member, a shower for watering, a mist generator, a water supply hose (pipe) provided with a large number of small holes, a water supply trough, or the like can be used.

FIG. 1 shows an example of a veranda with a cooling device.
It is the veranda 2 of the high-rise building 7 . A window 31 is provided on the indoor side 3, and a veranda 2 is provided on the outside. It has a ceiling 21 and a slab 22, with a wainscot 23 (which may be a grid) on the outside. In summer, the veranda 2 becomes hot due to sunlight and heat entering the veranda space 24 . The effect also affects the interior 3 through the window 31, increasing the air conditioning load.
In this figure, the upper end portion 11 of the screen member 1 is attached to the ceiling 21 side of the veranda 2 and the lower end portion 12 is attached to the slab 22 side of the veranda 2 . It can be attached detachably by providing an anchor hook or the like on the ceiling and slab. It can also be attached to the waist wall 23 on the slab side.
A sprinkler device 6 for supplying water is provided toward the screen member 1 .
Moisture is applied to the screen member 1 from a sprinkler 6 by means of shower, mist, pumping, or the like.
When the moisture evaporates from the screen member 1, the moisture is absorbed as heat of vaporization, and the veranda space 24 is cooled. As a result, the amount of heat entering through the window 31 is reduced, and the air conditioning efficiency is increased.
This cooling device can be easily installed, so if it is shared with each floor of the building and also with the surrounding buildings, it can be expected to have a regional cooling effect.

The screen member 1 preferably has small openings (perforations), and ventilation promotes vaporization and increases the cooling effect. In addition, it is possible to prevent the veranda space from becoming hot without accumulating hot air in the veranda space as the vaporized steam or hot air rises.
An example of the screen member 1 is shown in FIG. The screen member shown in FIG. 4 is the roll screen 15 .
The screen member is made of a material having water retentivity, such as foamed urethane or foamed rubber. The screen member has an open area ratio of about 50% to ensure ventilation, ventilation, and visibility to the outside. With such an opening ratio, even in strong winds, the wind pressure is equalized on the front and back sides, so the posture can be stabilized without applying excessive wind load, and flying objects can be effectively blocked. can be blocked.
As for the shape of the opening, as shown in FIG. 5, a design rich in design can be adopted.

Figure 2 shows an image of a strong wind.
Since the screen member 1 has an aperture ratio of about 50%, it is stable even when exposed to a strong wind, and damage to plants in the veranda space 24 is small, and objects falling from the veranda are prevented. It has a preventive effect.

FIG. 3 shows an example of a veranda provided with a water tank 61 as water supply equipment.
A water tub 61 filled with water is prepared on the veranda, and water is supplied to the screen member 1 from the water tub 61. - 特許庁The supply method is a method of immersing a part of the screen member 1 in a tub and using capillary action, or a natural water supply method of extending a water absorption zone from the screen member into the tub and using capillary action. and so on. Alternatively, a powered pump-equipped shower device can be provided to direct water to the screen member. In addition to the manual switch, the drive of the power can also be automatically controlled based on detection by a temperature sensor or the like.
As a water supply device, there is also a method of providing a water supply hose or a water supply pipe on the ceiling side to supply water to the screen member. Hoses and pipes are provided with a large number of small holes. Water can also be supplied to the entire screen member by running thin flexible pipes along the screen member. Water can be supplied to the water supply hose and water supply pipe by installing a tank near the ceiling and using a natural fall method, or by pumping up from a water tank placed on the slab. Water supply timing can be automated by manual operation or detection by a temperature sensor or the like.

1 Screen member 11 Upper end 12 Lower end 15 Roll screen 2 Veranda 21 Ceiling 22 Slab 23 Waist wall 24 Veranda space 3 Indoor 31 Window 6 Sprinkler 61 Water supply trough 7 Building

Claims (4)

A cooling device equipped with a screen member that is composed of water-retentive and flexible materials with many small openings, hangs from the ceiling of the veranda to block solar radiation, and lowers the temperature of the veranda space and indoors by heat of vaporization. A veranda cooling device characterized by being installed. 2. The cooling device for a veranda according to claim 1, wherein the cooling device has a sprinkler for supplying water to the screen member. 3. The veranda cooling device according to claim 1, wherein the screen member has an aperture ratio of 40 to 60% and is made of foamed urethane or porous rubber. A cooling device for a veranda according to any one of claims 1 to 3, wherein the screen member has an upper end fixed to the ceiling side of the veranda and a lower end fixed to a waist wall or slab of the veranda.

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