JP6716277B2 - Double skin curtain wall - Google Patents

Description

The present invention relates to a double skin curtain wall.

BACKGROUND ART In recent years, curtain walls have been often used for outer walls of buildings such as super high-rise or high-rise offices, hotels, and apartments, mainly from the viewpoint of durability and design. In particular, the double-skin curtain wall that uses glass as the material has a structure that can be expected to save energy by switching the mode of air supply and exhaust in the hollow layer between the outer wall of the building and the glass depending on the season and sunshine conditions. , Is also being actively introduced in high-rise or high-rise buildings.

In the above-mentioned double skin curtain wall, various ideas and proposals have been made to further enhance the energy saving effect.
For example, Patent Document 1 discloses a double-skin curtain wall (a so-called all-layer double-skin curtain wall) attached to the outer wall portion of a multi-layered building over each layer. In this double-skin curtain wall, an indoor ventilation mechanism is provided for each of the floors. The indoor ventilation mechanism is composed of an external ventilation opening that opens to the outside surface material, an internal ventilation opening that opens to the room, and a ventilation duct that connects the external ventilation opening and the internal ventilation opening. The ventilation duct traverses a hollow layer that vertically communicates between the outer side member and the inner side member.

Further, Patent Document 2 discloses a double skin curtain wall attached over the outdoor side of a large number of floors of a building. In this double-skin curtain wall, the hollow layer between the outer side surface material and the inner side surface material is partitioned into a plurality of layers, and a so-called multi-layer type structure is adopted. The lowermost part of the hollow layer is opened to the outside as a lower ventilation port, and the uppermost part of the hollow layer is opened to the outside as an upper ventilation port. The hollow layer and the floor are connected by an internal ventilation port.

JP, 2013-177756, A JP, 2011-219989, A

However, in the double-skin curtain wall described in Patent Document 1, since the hollow layer extends over all the layers, the hollow layer for preventing an excessive temperature rise of the double-skin curtain wall hollow layer as the building becomes higher in height. The required passing air amount of is increased. Therefore, it is necessary to increase the depth dimension of the double-skin curtain wall and the opening areas of the air supply port and the air exhaust port, but the depth dimension and the opening areas of the air supply port and the air exhaust port are restricted to some extent and cannot be increased. Therefore, there is a demand for a device that suppresses an increase in the depth dimension and the opening area of the air supply port/exhaust port. Due to such restrictions, there is a problem that the temperature of the upper part of the double-skin curtain wall rises excessively, and this problem becomes apparent particularly in the double-skin curtain wall on the west side, which is strongly exposed to solar radiation.

Further, in the double skin curtain wall described in Patent Document 2, a ventilation port having a plurality of functions (for example, a lower ventilation port, an upper ventilation port, an internal ventilation port, an external ventilation port, etc.) is installed on the waist. Therefore, the structure becomes complicated, and it is necessary to increase the depth dimension of the double skin curtain wall.However, since the depth dimension is limited to some extent as described above, it cannot be increased, and the depth dimension and the air supply/exhaust port What suppressed the increase of the opening area was calculated|required. Moreover, since the area of the ventilation port for ventilation in the hollow layer is limited, it is difficult to increase the number of layers in which the hollow layer is continuous. Therefore, similar to the double-skin curtain wall described in Patent Document 1, there is a problem that the upper portion of the double-skin curtain wall has an excessive temperature rise.

The present invention has been made in view of the above circumstances, and can be applied to a super high-rise building or a high-rise building while suppressing an increase in the depth dimension and the opening area of the ventilation opening, and the temperature of the double skin curtain wall excessively rises. Provide a double skin curtain wall that can prevent this.

A double-skin curtain wall according to the present invention, an inner surface material provided on an outer wall portion of a multi-layered building, an outer surface material provided with a space on the outdoor side of the inner surface material, and the inner surface material. The hollow layer between the outer surface material is partitioned in the horizontal direction, a vertical slit extending in the vertical direction, the hollow layer is partitioned in the vertical direction, a horizontal slit extending in the horizontal direction, and the outer surface. A side member that connects the side edge of the member and the inner surface member, a top member that connects the upper edge of the outer member and the inner member, a lower edge of the outer member, and the inner member. And a bottom surface member that connects the bottom slit member and the horizontal slit, the partition hollow layer partitioned by the vertical slits and the horizontal slits is formed over a plurality of layers, and a lower ventilation port opens at a lower portion of the side member and an upper ventilation member. A mouth opens to the upper portion of the outer panel and/or the upper sheet, and the lateral width of the upper ventilation opening is larger than the width of the lower return opening in the depth direction .

In the above double skin curtain wall, the hollow layer is divided by the vertical slits and the horizontal slits. As a result, the temperature rise in the hollow layer of the double-skin curtain wall is suppressed compared to before the compartment, so the required amount of air passing through the compartment hollow layer is suppressed below the required amount of air passing through the hollow layer before the compartment, It is possible to reduce the depth dimension and the opening area of the air supply port and the exhaust port.
Also, outside air is introduced into the compartment hollow layer from the lower part of the side surface material through the lower ventilation port, and the air in the compartment hollow layer is introduced from the upper part of the outer surface material and/or the upper surface material through the upper ventilation port into the double skin curtain wall ( That is, it is discharged to the outside of the section double skin curtain wall sectioned by the vertical slit and the horizontal slit. In this way, the inflow direction of the outside air (supply air) introduced into the partitioned hollow layer and the outflow direction of the air discharged from the partitioned hollow layer (exhaust air) are different from each other, so that the air discharged from the partitioned hollow layer is outside the building. It is possible to greatly suppress the fact that the particles are not released but are directly introduced into another section hollow layer (so-called show circuit generation). Therefore, even if the depth dimension of the compartment double-skin curtain wall and the opening area of the upper and lower ventilation openings are not increased, the compartment hollow layer is ventilated in a timely and smooth manner. It is possible to prevent the skin curtain wall from excessively rising in temperature.

The double skin curtain wall above mentioned, may be the lower portion ventilatory support port are opened to the bottom surface member.

In the above double skin curtain wall, the outside air is introduced into the compartment hollow layer from the auxiliary ventilation opening in addition to the lower ventilation opening, so that the air flow in the compartment hollow layer becomes uniform. A short circuit is allowed for the auxiliary ventilation port.

A double-skin curtain wall according to the present invention, an inner surface material provided on an outer wall portion of a multi-layered building, an outer surface material provided with a space on the outdoor side of the inner surface material, and the inner surface material. The hollow layer between the outer surface material is partitioned in the horizontal direction, a vertical slit extending in the vertical direction, the hollow layer is partitioned in the vertical direction, a horizontal slit extending in the horizontal direction, and the outer surface. A side member that connects the side edge of the member and the inner surface member, a top member that connects the upper edge of the outer member and the inner member, a lower edge of the outer member, and the inner member. and a lower surface member for connecting the door, said during the air layer is partitioned into air layer in the compartment by the longitudinal slit and the transverse slits, the partition hollow layer is formed over a plurality of hierarchies, the lower ventilation opening open to the bottom portion of the outer surface material, open to one of the upper of the side member of the upper vent the compartment hollow layer, the other of said side surfaces of the partition hollow layer of the upper ventilatory support opening the outer side surface member There is an opening at the top of the material side .

In the double skin curtain wall described above, as in the double skin curtain wall according to claim 1, since the temperature rise in the hollow section of the double skin curtain wall is suppressed compared to before the section, the required passing air amount of the hollow section is Is significantly suppressed compared to the amount of air flowing through the hollow layer before the compartment, and the depth dimension of the hollow layer and the opening areas of the air supply port and the exhaust port can be reduced.
In addition, outside air is introduced into the compartment hollow layer from the upper part and/or the upper surface material of the outer side material through the lower ventilation port, and the air in the compartment hollow layer is introduced from the lower part of the side material through the upper ventilation port to the double skin curtain wall. It is discharged to the outside. In this way, since the flow directions of the supply air and the exhaust air are different from each other, it is possible to prevent the air discharged from the compartment hollow layer from being directly introduced into another compartment hollow layer without being released to the outside of the building. Therefore, even if the depth dimension of the compartment double-skin curtain wall and the opening areas of the upper ventilation opening and the lower ventilation opening are not increased, the compartment hollow layer can be ventilated in a timely and smooth manner.
Further, in the above double skin curtain wall, since the outside air is introduced into the compartment hollow layer from the auxiliary ventilation opening in addition to the lower ventilation opening, the air flow in the compartment hollow layer becomes uniform. A short circuit is allowed for the auxiliary ventilation port.

In the double skin curtain wall described above , a hollow layer ventilation port may be formed in the inner side surface material facing the partitioned hollow layer so as to connect the partitioned hollow layer and the inside of the building via a blowing unit. ..

In the above double skin curtain wall, since the hollow layer ventilation port is provided, the air inside the building is exhausted to the partitioned hollow layer through the hollow layer ventilation port by the blowing means such as a fan in the summer. The temperature rise of the double skin curtain wall is suppressed and the solar shading performance of the double skin curtain wall is improved. This reduces the energy consumption of the cooling installed inside the building. Further, in winter, when the temperature in the hollow layer rises due to solar radiation, it is taken into the inside of the building by the blowing means, and the energy consumption of the heating installed inside the building is also reduced.

In the above double skin curtain wall, an indoor/outdoor ventilation port communicating with the inside of the building may be formed in at least one of the inner side surface members in the vertical slit and the horizontal slit.

In the above double-skin curtain wall, since the inside surface material in the vertical slits and the horizontal slits is exposed or close to the outside of the building, by providing an indoor/outdoor ventilation port, the structure of the double-skin curtain wall and the building The interior of the building is naturally ventilated, and the interior and exterior of the building can easily communicate with each other without complicating. This further reduces energy consumption for cooling and heating inside the building.

In the double-skin curtain wall of the present invention, by making the flow directions of the air supply and the exhaust air different from each other, it is possible to significantly suppress the short circuit from the exhaust air to the air supply, and to efficiently ventilate the partitioned hollow layer. As a result, according to the double-skin curtain wall of the present invention, it is possible to suppress an increase in the depth dimension and the opening area of the ventilation opening, to make it applicable to a super high-rise building or a high-rise building, and to raise the temperature of the double-skin curtain wall excessively. Can be prevented.

It is a perspective view of the double skin curtain wall of a first embodiment concerning the present invention. It is a figure of the double skin curtain wall of a first embodiment concerning the present invention, and is a sectional view taken along the line XX shown in Drawing 1. It is a figure of the double skin curtain wall of a first embodiment concerning the present invention, and is a front view seen from an arrow D1 direction shown in Drawing 1. It is the perspective view which arranged the double skin curtain wall of the second embodiment and the fourth embodiment according to the present invention side by side in the horizontal direction. It is a perspective view of a double skin curtain wall of a third embodiment concerning the present invention. It is a perspective view of a double skin curtain wall of a fifth embodiment concerning the present invention. It is a figure which shows the temperature distribution of the double skin curtain wall in a test example, and is a figure when a lower ventilation opening opens in the position corresponding to a lower surface material. It is a figure which shows the temperature distribution and the wind speed distribution of the double skin curtain wall in a test example, and is a figure when a double skin curtain wall is divided in the horizontal direction and the lower ventilation opening opens in the position corresponding to the lower part of the side material. Is.

An embodiment of a double skin curtain wall according to the present invention will be described below with reference to the drawings. The drawings used in the following description are schematic, and the length, width, and thickness ratios are not necessarily the same as the actual ones, and can be changed as appropriate.

(First embodiment)
FIG. 1 is a perspective view of a double skin curtain wall 1A of the first embodiment. FIG. 2 is a view of the double skin curtain wall 1A and is a cross-sectional view taken along the line XX shown in FIG. FIG. 3 is a view of the double skin curtain wall 1A and is a front view seen from the direction of arrow D1 shown in FIG.

As shown in FIG. 1, the double skin curtain wall 1A includes an inner side surface material 3 provided on an outer wall portion of a multi-layer building B and an outer side surface material 2 provided on the outdoor side of the inner side surface material 3 with a space therebetween. And a hollow layer 4 between the inner surface material 3 and the outer surface material 2 is divided in the horizontal direction and a vertical slit S1 extending in the vertical direction, and the hollow layer 4 is divided in the vertical direction and extended in the horizontal direction. The existing lateral slit S2, the side member 32 that connects the side edge 2e of the outer side member 2 and the inner side member 3, and the upper surface member 34 that connects the upper end edge 2a of the outer side member 2 and the inner side member 3 to each other. And a lower surface member 36 connecting the lower end edge 2b of the outer side member 2 and the inner side member 3.
The outer side surface material 2, the inner side surface material 3, the side surface material 32, the upper surface material 34, and the lower surface material 36 are made of a daylightable glass material.

In the double skin curtain wall 1A, the partition hollow layer 18 partitioned by the vertical slits S1 and the horizontal slits S2 is formed on the outer wall portion of the building B over a plurality of layers 4c. Although FIG. 1 to FIG. 3 show an example in which the partitioned hollow layers 18 are formed over three layers 4c, the number of layers 4c continuous to one partitioned hollow layer 18 is set appropriately. ing.
In the above configuration, the outer side surface member 2, the inner side surface member 3, the upper surface member 34, the side surface member 32, and the lower surface member 36 are provided, and the partition forming the partition hollow layer 18 is surrounded by these surface materials. A plurality of walls 38 are arranged side by side on the outer wall portion of the building B via the vertical slits S1 or the horizontal slits S2.
The partition hollow layer 18 is provided with a blind (not shown).

The lower ventilation port 5 is opened in the vertical slit S1 at the lower portion of the side surface member 32 of the partition wall 38. By appropriately setting the opening area of the lower ventilation port 5, the outside air Ai that has entered the vertical slit S1 is smoothly introduced into the partitioned hollow layer 18.
However, the lower ventilation port 5 is not formed in the side wall material 32 on the corner side of the partition wall 38 closest to the corner of the building B. This is because the corner portion of the building B has a higher wind speed than the surroundings. Therefore, when the outside air Ai is introduced into the partitioned hollow layer 18, the flow velocity of the air in the partitioned hollow layer 18 locally and rapidly increases, and the inside of the partitioned hollow layer 18 is increased. This is because the blind (not shown) may be damaged.
The lower ventilation port 5 is provided with a foreign matter entry prevention structure (not shown). This prevents foreign matter other than the outside air from entering the partitioned hollow layer 18.

An upper ventilation opening 6 is open to the outside on the upper side of the outer surface member 2 of the partition wall 38. By appropriately setting the opening area of the upper ventilation port 6, the air Ao in the partitioned hollow layer 18 is smoothly discharged to the outside. The upper ventilation opening 6 is also provided with a foreign matter entry prevention structure (not shown). This prevents foreign matter other than the outside air from entering the partitioned hollow layer 18.

As described above, natural ventilation is performed in the partition wall 38 by passing the outside air Ai through the partition hollow layer 18.

As shown in FIG. 2, the partition hollow layer 18 and the inside of the building B are communicated with the inner side surface material 3 facing the partition hollow layer 18, that is, the inner surface material 3 of the partition wall 38, through the air blowing means F. A hollow layer ventilation port 16 is formed. Specifically, one end of the ventilation duct 17 is connected to the hollow layer ventilation port 16, and the other end of the ventilation duct 17 is connected to the blower unit F. The ventilation duct 17 is arranged in a ceiling space R provided between the floors L. Examples of the blowing unit F include a fan or an air conditioner/outdoor controller.
With such a configuration, indoor air can be discarded by the fan F or the like to the double skin curtain wall 1A in the summer (when cooling), and warm air can be taken in by the fan F or the like in the winter.

As shown in FIG. 1, an indoor/outdoor ventilation port 10 communicating with the room (inside the building B) is formed in the inner side surface member 3 in the vertical slit S1 (see FIG. 1). Specifically, the indoor/outdoor ventilation port 10 is a hole penetrating the inside surface material, one end of the indoor/outdoor ventilation port 10 is open to the outside, and the other end of the indoor/outdoor ventilation port 10 is the floor L. It is open to the public. The indoor/outdoor ventilation port 10 is provided with a foreign matter entry prevention structure (not shown). This prevents foreign matter other than the outside air from entering the room.
Natural ventilation is provided in the room by directly introducing the outside air Ai into the room.
Although not shown, the indoor/outdoor ventilation port 10 may be provided in the inner side member 3 in the lateral slit S2 (see FIG. 1).

The upper ventilation port 6 may be opened in the upper surface member 34 of the partition wall 38 (opening illustrated by a broken line in FIG. 1) or may be opened only in the upper surface member 34.

In the double skin curtain wall 1A of the first embodiment described above, the hollow layer 4 is partitioned by the vertical slits S1 and the horizontal slits S2, and a plurality of partitioned hollow layers 18 are formed. Therefore, the required passing air amount of the partitioned hollow layer 18 is suppressed to be smaller than the required passing air amount of the hollow layer 4, and the depth dimension of the partitioned hollow layer 18 (that is, the hollow layer 4) and the opening area of the air supply port and the exhaust port are reduced. can do. Therefore, it is possible to provide the double skin curtain wall 1A which can be installed in a super high-rise building or a high-rise building B such as a building, has a high energy-saving effect, and has a reduced depth dimension and opening areas of the air supply port and the exhaust port. As a result, it is possible to realize a reduction in the amount of materials, a reduction in construction cost, a reduction in the environmental load during construction, etc., as well as an increase in the indoor effective area.

Further, the outside air Ai is introduced into the partition hollow layer 18 from the lower portion of the side surface member 32 through the lower ventilation port 5, and the air Ao of the partition hollow layer 18 is passed through the upper ventilation port 6 from the upper part of the outer surface member 2 to the partition wall. It is discharged to the outside of 38 (that is, to the outside of the compartment hollow layer 18). That is, the compartment wall 38 is naturally ventilated. In this way, by making the inflow direction of the outside air Ai different from the outflow direction of the air (exhaust gas) Ao discharged from the partitioned hollow layer 18 (arranged so as to be substantially perpendicular to each other), the air supply port and the exhaust port It is possible to prevent the air Ao discharged from the compartment hollow layer 18 from being short-circuited and introduced into another compartment hollow layer 18 by keeping the distance A, and to open the air Ao to the outside. Therefore, natural ventilation can be performed by allowing the outside air to pass through the partition hollow layer 18 in a timely and smooth manner without increasing the depth dimension of the partition wall 38 and the opening areas of the upper ventilation port 6 and the lower ventilation port 5. .. Further, the cost of the double skin curtain wall 1A can be reduced without complicating the structure of the partition wall 38. For example, the number of lower ventilation openings 5 and upper ventilation openings 6 of the hollow layer 4 is considered to be smaller than in the case of applying the technology described in the known patent document 2 to a super high-rise building or a high-rise building B. This leads to cost reduction of the curtain wall 1A.

In addition, according to the double skin curtain wall 1A of the first embodiment, the upper ventilation port 6, the lower ventilation port 5, and the indoor/outdoor ventilation port 10 are arranged in consideration of the wind distribution of the construction site of the building B, and It is possible to more reliably prevent Ao from short-circuiting.
Furthermore, according to the double skin curtain wall 1A of the first embodiment, the heat load from the outer wall portion and the window of the building B can be significantly reduced, and the energy consumption of cooling and heating can be reduced.

Further, according to the double skin curtain wall 1A of the first embodiment, by having the hollow layer ventilation port 16, in the summer, the air in the room is exhausted to the partition hollow layer 18 to increase the air temperature of the partition hollow layer 18. If it is lowered, the solar radiation shielding performance of the double skin curtain wall 1A can be improved. Thereby, the energy consumption of cooling can be reduced and the energy saving effect can be enhanced in the entire building B.
On the other hand, in the winter, if warm air in the hollow section 18 is taken into an air conditioner or an external air conditioner (not shown), energy consumption for heating can be reduced. When warm air in the compartment hollow layer 18 is taken into a room or an air conditioner or an outdoor air conditioner, the temperature of the compartment hollow layer 18 is lowered, and the room air near the inner surface member 3 is also cooled via the inner surface member 3. There is a concern that a downdraft (so-called cold draft) may occur. In such a case, the temperature lower limit value of the compartment hollow layer 18 is set, and when the temperature is equal to or higher than the lower limit value, the warm air is introduced from the compartment hollow layer 18 to control the generation of cold draft. be able to.

Further, according to the double skin curtain wall 1A of the first embodiment, by having the indoor/outdoor ventilation port 10, it is possible to easily form the outside and the inside of the building B without complicating the structures of the partition wall 38 and the building B. To allow natural ventilation inside the building B. During the interim period, natural ventilation can be used to shorten the cooling operation time. Thereby, the energy consumption for cooling and heating inside the building B can be further reduced.

(Second embodiment)
Next, the double skin curtain wall 1B of the second embodiment according to the present invention will be described. The constituent elements of the double-skin curtain wall 1B are the same as those of the double-skin curtain wall 1A, and the same reference numerals are given to the constituent elements of the double-skin curtain wall 1A. Will be described next.

FIG. 4 is a perspective view of the double-skin curtain wall 1B and a double-skin curtain wall 1D of a fourth embodiment described later.
As shown in FIG. 4, in the double skin curtain wall 1B, the lower ventilation auxiliary port 5b is opened in the lower surface member 36.

The double-skin curtain wall 1B of the second embodiment described above has the same configuration as the double-skin curtain wall 1A of the first embodiment. Therefore, it is the same as the double-skin curtain wall 1A of the first embodiment. The effect is obtained.
Further, the double-skin curtain wall 1B of the second embodiment, since the outside air Ai is introduced from the lower ventilatory support port 5b in addition to the lower ventilation openings 5 to the partition during the air layer 18, the flow of air in the compartment hollow layer 18 the homogenized, for example, even when the width dimension of the partition wall 38 is relatively large, it is possible to prevent the occurrence of poor ventilation or hot air reservoir in compartment during the air layer 18. In addition, a short circuit is allowed for the lower ventilation auxiliary port 5b.

(Third embodiment)
Next, a double skin curtain wall 1C according to the third embodiment of the present invention will be described. The constituent elements of the double-skin curtain wall 1C are the same as those of the double-skin curtain wall 1A, and the same reference numerals are given to the constituent elements of the double-skin curtain wall 1A. Will be described next.

FIG. 5 is a perspective view of the double skin curtain wall 1C.
As shown in FIG. 5, in the double skin curtain wall 1C, the lower ventilation port 5 is opened in the lower surface member 36. On the other hand, the upper ventilation port 6 is opened above the side surface member 32 of the partition wall 38.

In the double skin curtain wall 1C of the third embodiment described above, as in the double skin curtain wall 1A of the first embodiment, the hollow layer 4 is partitioned by the vertical slits S1 and the lateral slits S2, and the plurality of partitioned hollow layers 18 are formed. Are formed. Further, the outside air Ai is introduced into the partition hollow layer 18 from the lower part of the outer surface member 2 via the lower ventilation port 5, and the air Ao of the partition hollow layer 18 is transferred from the upper part of the side surface member 32 to the partition wall via the upper ventilation port 6. It is discharged to the outside of 38. That is, the inflow direction of the outside air Ai and the outflow direction of the air (exhaust) Ao discharged from the partitioned hollow layer 18 are different from each other (arranged so as to be substantially perpendicular to each other), and the air supply port and the exhaust port are separated from each other. By taking the above condition, it is possible to prevent the air Ao discharged from the compartment hollow layer 18 from being short-circuited and introduced into another compartment hollow layer 18, and to open the air Ao to the outside. Therefore, according to the double skin curtain wall 1B of the second embodiment, the same operational effect as the double skin curtain wall 1A of the first embodiment can be obtained.

(Fourth embodiment)
Next, a double skin curtain wall 1D according to the fourth embodiment of the present invention will be described. The constituent elements of the double skin curtain wall 1D are the same as the constituent elements of the double skin curtain wall 1C, and the same reference numerals are given, and the description thereof will be omitted and different points from the constituent elements of the double skin curtain wall 1C. Will be described next.

FIG. 4 shows a perspective view of the double skin curtain wall 1D.
As shown in FIG. 4, in the double skin curtain wall 1D, the upper ventilation auxiliary port 6b is opened in the upper surface member 34.

The double-skin curtain wall 1D of the fourth embodiment described above has the same configuration as the double-skin curtain wall 1C of the third embodiment. Therefore, it is the same as the double-skin curtain wall 1C of the third embodiment. The effect is obtained.
Further, the double-skin curtain wall 1D of the fourth embodiment, since the air Ao compartment during the air layer 18 is discharged from in addition to the upper ventilation opening 6 upper ventilatory support port 6b to the outside of the building B, partitioned hollow layer 18 the flow of air inside uniform, it is possible to prevent the ventilation defective or hot air reservoir in example partition wall 38 width is relatively large when the a compartment during the air layer be 18. Further, for the lower ventilation port 5, a little short circuit is allowed.

(Fifth embodiment)
Next, a double skin curtain wall 1E of the fifth embodiment according to the present invention will be described. The constituent elements of the double skin curtain wall 1E are the same as the constituent elements of the double skin curtain wall 1A, the same reference numerals are given, and the description thereof is omitted, and different points from the constituent elements of the double skin curtain wall 1A. Will be described next.

FIG. 6 shows a perspective view of the double skin curtain wall 1E.
As shown in FIG. 6, the double-skin curtain wall 1E, open to the top of one side member 32A of the pair of side surface member 32 of the upper vents 6 are opposed across the sky layer 18 in section, the lower ventilation opening 5 opens to the lower part of the other side member 32B of the pair of side members 32, the upper ventilation ports 6 face each other with the vertical slit S1 interposed therebetween, and the upper ventilation ports 6 adjacent to each other in the vertical direction have the same vertical slit. It opens toward S1.

The double-skin curtain wall 1E of the fifth embodiment described above has the same configuration as the double-skin curtain wall 1A of the first embodiment. Therefore, it is the same as the double-skin curtain wall 1A of the first embodiment. The effect is obtained.
In addition, in the double-skin curtain wall 1E of the fifth embodiment, when looking at each section middle-high layer 18, the outside air Ai is introduced into the section middle-high layer 18 from the side surface material 32B side through the lower ventilation port 5, and The air Ao is discharged from the side surface member 32A side to the outside of the sectioned double skin curtain wall 1E through the upper ventilation port 6. In this way, the inflow and outflow of the air supply and the exhaust are arranged on the side members 32A and 32B on the opposite sides with the partition hollow layer 18 sandwiched therebetween, and the upper ventilation ports 6 face each other with the vertical slit S1 sandwiched between them. The upper ventilation openings 6 adjacent to each other are opened toward the same vertical slit S1, so that the air Ao discharged from the compartment hollow layer 18 is not released to the outside of the building B and is directly separated from another compartment hollow. It can be prevented from being introduced into the layer 18. Therefore, the partition hollow layer 18 is ventilated in a timely and smooth manner without increasing the depth dimension of the partition wall 38 and the opening areas of the upper ventilation port 6 and the lower ventilation port 5.
Further, since the lower ventilation port 5 and the upper ventilation port 6 are both formed on the side surface member 32, it becomes difficult to see the lower ventilation port 5 and the upper ventilation port 6 from the outside of the building B, and the outside where the opening is not formed. Since the side member 2 is visually recognized, the aesthetic appearance of the building B is enhanced.

Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the specific embodiments, and various modifications are possible within the scope of the gist of the present invention described in the claims. It can be changed.

For example, in the first embodiment and the second embodiment, the vertical slit S1 and the horizontal slit S2 are assumed to reach the inner side surface material 3, but they do not necessarily have to reach the inner side surface material 3. That is, if the lower ventilation port 5 or the upper ventilation port 6 can be formed in the side surface member 32, the depth dimension of the vertical slit S1 and the horizontal slit S2, and the thickness dimension t1 of the partition wall 38 interlocking with the dimension are appropriately adjusted. be able to.

Test example

Next, a description will be given of a test example carried out to prove the effect of the double skin curtain wall 1A of the first embodiment according to the present invention described above. The present invention is not limited to the following test examples.

In this test example, the partition wall 38 was modeled as described below, and the air flow and temperature distribution in the double skin curtain wall 1A were analyzed by numerical calculation. The fluid analysis CFD was used for the numerical analysis.
As the double-skin curtain wall 1A, we decided to handle west-side double skin and east-side double skin.

The western double skin and the eastern double skin described above are regarded as simple rectangular parallelepipeds, and the western double skin with a large amount of solar radiation heat is divided into three vertically, and the eastern double skin that does not have the amount of solar heat received is the same as the western surface. Was divided into two parts in the vertical direction and examined. The range of the analysis region (that is, the space including the building) was (longitudinal) 73.6 m×(horizontal) 141 m×(height) 142.3 m. A building was placed approximately in the center of this area. The size of the west face double skin and the east face double skin were both (length) 23.6 m×(width) 0.4 m×(height) 72.36 m. The outer side material 2 was heat ray reflective glass having a heat ray reflective clear layer having a thickness of 6 mm. The inner side surface material 3 was transparent paired glass. In this transparent paired glass, transparent glasses having a thickness of 6 mm were made to face each other with an interval of 6 mm. The partition hollow layer 18 is provided with a blind of medium color.
Lower vent 5 and the upper vent 6 was set to 0.2 m ² / m. Specifically, the opening size of the lower ventilation port 5 is (horizontal) 0.2 m×(height) 13.05 m, and the opening size of the upper ventilation port 6 is (vertical) 11.6 m×(height) 0. It was set to 2 m.
The partition hollow layer 18 between the floors 4c is provided with an inter-layer grating having a pressure loss of 70%.

The azimuths of the west double skin and the east double skin, the outside air temperature (the temperature of the outside air Ai), and the vertical solar radiation amount are set as shown in Table 1.

Based on the summer weather data Jc-t of the new maximum heat load calculation method HASPEE, the amount of solar radiation on the western and eastern double skins can be calculated from the vertical planes of the western and eastern double skins (that is, the outer surface materials The maximum value of total solar radiation on the surface corresponding to 2) was adopted. As the outside temperature, we adopted the outside temperature in the time zone where the amount of solar radiation was the maximum (assuming 15:00 for double skin on the west side and 9:00 for double skin on the east side). The wind direction is assumed to be south (south wind) and southwest (southwest wind), which are the main wind directions in summer in the standard weather data of Tokyo. At a specified wind speed height of 100 m, the south wind speed was 1.0 m/s, the southwest wind speed was 3.0 m/s, roughness category III was adopted, and the exponent was 0.2. As the stress condition, the logarithmic law was applied to the ground surface and the building surface, and there was no wall resistance on the upper surface of the analysis area. The RNG type k-ε model (steady-state calculation) was used as the turbulence model. The temperature of the indoor floor L was constant at 26°C.

FIG. 7 is a diagram showing a temperature distribution of the double skin curtain wall when the lower ventilation port 5 is opened not at the lower portion of the side surface member 32 but at a position corresponding to the lower surface member 36. The wind speed and direction were 1.0 m/s southerly.
On the other hand, FIG. 8 is also divided into two parts in the horizontal direction, and the lower ventilation port 5 is opened at a position corresponding to the lower part of the side surface member 32, as described for the double skin curtain wall 1A of the first embodiment. It is a figure which shows the temperature distribution (upper part) and wind velocity distribution (lower part) of the double skin curtain wall 1A in a case. Regarding the wind speed and the wind direction, there were three winds of 1.0 m/s south wind, 3.0 m/s south wind and 3.0 m/s southwest wind.
In each of the test examples shown in FIGS. 7 and 8, the upper ventilation port 6 is opened at a position corresponding to the upper surface member 34.

As shown in FIG. 7, when the lower ventilation port 5 is opened to the lower surface member 36, the first stage (the lowest stage) has an appropriate temperature zone in both the east face and the west face double skins. ing. However, in the second stage and the third stage, it is considered that the air Ao discharged from the lower ventilation port 5 was introduced into the partition hollow layer 18 from the upper ventilation port 6 of the partition wall 38 immediately above by the short circuit, and thus the partition hollow layer. It can be seen that the temperature is excessively increased over a wide range of 18 (particularly, the portion surrounded by the broken line in FIG. 7).
On the other hand, as shown in FIG. 8, when the present invention is applied and the lower ventilation port 5 is opened to the side surface member 32, the temperature rise of the compartment hollow layer 18 is suppressed, and the temperature distribution is also shown in FIG. It can be seen that the temperature distribution of the partitioned hollow layer 18 shown in FIG. Further, the effect of suppressing the temperature rise in the building B was greater when the wind speed was 3.0 m/s than when the wind speed was 1.0 m/s.

As can be seen from the test examples described above, the double-skin curtain wall according to the present invention suppresses an increase in the depth dimension and the opening area of the ventilation port, and in the double-skin curtain wall (that is, each partition wall). It is possible to suppress an excessive temperature rise.

1A, 1B, 1C, 1D double skin curtain wall 2 outer side surface material 2a upper edge 2b lower edge 2e side edge 3 inner side material 4 hollow layer 4c level 5 lower ventilation opening 5b lower ventilation auxiliary opening 6 upper ventilation opening 6b upper ventilation Auxiliary port 10 Indoor/outdoor ventilation port 16 Hollow layer ventilation port 18 Sectional hollow layer 32 Side material 34 Upper surface material 36 Lower surface material B Building F Blowers S1 Vertical slits S2 Horizontal slits

Claims (5)

Inside surface material provided on the outer wall of the multi-layered building,
An outer surface material provided with a space on the outdoor side of the inner surface material,
A hollow layer between the inner surface material and the outer surface material is partitioned in the horizontal direction, and a vertical slit extending in the vertical direction,
Dividing the hollow layer in the vertical direction, a horizontal slit extending in the horizontal direction,
A side member that connects the side edge of the outer side member and the inner side member,
An upper surface material that connects the upper edge of the outer surface material and the inner surface material,
A lower surface material connecting the lower edge of the outer surface material and the inner surface material,
Equipped with
Wherein during the air layer is partitioned into air layer in the compartment by the longitudinal slit and the transverse slits,
The compartment hollow layer is formed over a plurality of layers,
A lower ventilation opening opens at the bottom of the side material,
An upper ventilation opening opens on top of the outer panel or/and the top panel ,
A double-skin curtain wall in which the width of the upper ventilation opening in the lateral direction is larger than the width of the lower ventilation opening in the depth direction . The double skin curtain wall according to claim 1, wherein a lower ventilation auxiliary port is opened in the lower surface material. Inside surface material provided on the outer wall of the multi-layered building,
An outer surface material provided with a space on the outdoor side of the inner surface material,
A hollow layer between the inner surface material and the outer surface material is partitioned in the horizontal direction, and a vertical slit extending in the vertical direction,
Dividing the hollow layer in the vertical direction, a horizontal slit extending in the horizontal direction,
A side member that connects the side edge of the outer side member and the inner side member,
An upper surface material that connects the upper edge of the outer surface material and the inner surface material,
A lower surface material connecting the lower edge of the outer surface material and the inner surface material,
Equipped with
The hollow layer is partitioned into a partitioned hollow layer by the vertical slit and the horizontal slit,
The compartment hollow layer is formed over a plurality of layers,
The lower ventilation opening opens in the lower surface material,
An upper ventilation opening opens on top of one of the side members of the compartment hollow layer,
A double skin curtain wall in which an upper ventilation assisting opening is opened in an upper part of the other side of the partitioned hollow layer of the outer side material on the side surface side . On the inner surface material facing the compartment hollow layer, any one of claims 1-3 in which the hollow layer ventilation opening is formed which communicates through the blowing means and the interior of the building as the partition hollow layer Double skin curtain wall described in. The double-skin according to any one of claims 1 to 4 , wherein an indoor/outdoor ventilation port communicating with the interior of the building is formed in at least one of the inner side members in the vertical slit and in the horizontal slit. curtain wall.