JP5139052B2 - Watering curtain forming device - Google Patents

Description

  The present invention relates to a sprinkling curtain forming apparatus, and in particular, after forming a sprinkling curtain along a vertical plane facing the wind introduction direction and passing the sprinkling curtain to cool the wind introduced into the building. The present invention relates to a sprinkler curtain forming apparatus for sending into a building.

  External climatic factors such as temperature and humidity vary greatly with the season and time, and if the external climatic factors remain the indoor environment of the house is not comfortable, some countermeasures are necessary. Traditional Japanese houses in the era when there was no electricity cooling and heating facilities, especially in the summer, provided thick roofs, deep eaves and fences that block sunlight, and large openings. The idea was to make it easy to obtain ventilation.

  On the other hand, in recent residences, a comfortable indoor environment that is cool in the summer and warm in the winter can be obtained by a full air conditioning system, and energy consumption is increased by making the house highly insulated and airtight. The idea to reduce is also made.

In recent years, even in the case of high insulation and high airtightness, energy consumption due to the operation of air conditioning facilities has been increasing year by year, which is one of the causes of environmental problems such as global warming. It has become. For this reason, even in buildings such as houses with high thermal insulation and high airtightness, measures have been made to contribute to further energy saving by utilizing the blessings of nature due to the wind. (For example, refer to Patent Document 1).
JP 2007-132154 A JP 2004-360292 A JP 2007-284901 A

  The building described in Patent Literature 1 can efficiently aerate the inside of the building without using a so-called central ventilation device by the outside air introduced into the building during a good climate such as spring or autumn. However, in order to further reduce energy consumption, as in Japanese traditional private houses, ventilation is more actively incorporated into buildings as needed, for example, cooling by natural ventilation during hot summer months. Therefore, there is a demand for the development of a new technology that can effectively obtain the heat so that heat can be overcome without using a cooling device.

  In addition, for example, in the hot summer season, the wind to obtain ventilation is often warm due to the effects of the heat island phenomenon in recent years. I can't feel it. Therefore, for example, it is necessary to devise a method that allows the warm wind to be sent to the inside of the building in a hot state in summer.

  On the other hand, techniques for cooling a building by sprinkling water on the roof or outer wall of the building have been developed (see, for example, Patent Document 2 and Patent Document 3), both of which flow down along the roof and outer wall of the building. The building itself is directly cooled by the transpiration of the generated water, and in order to cool the wind sent into the building, it is necessary to develop a new technology. In particular, in order to cool the wind sent into the building by watering, it is necessary to prevent the water sprayed from being blown by the wind and scattered over a wide area.

  An object of the present invention is to provide a watering curtain forming apparatus that can cool a wind sent into a building by watering and introduce it as a cool wind.

The present invention is arranged on the outer peripheral portion of a building and forms a watering curtain by guiding the supplied water so as to flow down in a thread-like manner along a vertical plane facing the wind introduction direction. It is a watering curtain forming device that allows the wind introduced into the building to be cooled by the transpiration of water and then sent into the building by passing through, along a vertical plane facing the direction of wind introduction. A watering louver composed of a plurality of bar-like members arranged in parallel in the vertical direction and extending in the horizontal direction, and arranged at a portion directly above the watering louver, at the upper end of the uppermost bar-like member Ri Do and a water sprinkling member having a plurality of nozzle holes for supplying water toward, and said rod-like member, watering the lower half is provided with an isosceles triangle cross-sectional shape of arranging the lower end corner portion in the central portion Curtain formation By providing a location, in which to achieve the above objects.

  And the watering curtain formation apparatus of this invention is 10 in the up-down direction in the state which the rod-shaped member which comprises the said watering louver has the width of 10-300 mm in the up-down direction, and the width of 10-300 mm in the front-back direction. It is preferable that they are arranged in parallel with an interval of ˜300 mm.

  Further, in the watering curtain forming apparatus of the present invention, the rod-shaped member constituting the watering louver has a square cross-sectional shape, and one diagonal direction is set along the vertical direction, and the other diagonal direction is set in the horizontal direction. It is preferable to attach in the state along.

  Furthermore, in the watering curtain forming apparatus of the present invention, it is preferable that the rod-like member constituting the watering louver is attached in a state where the end portion is supported and fixed to a support column standing from the bottom plate portion of the outer peripheral portion of the building.

  According to the watering curtain forming apparatus of the present invention, the wind sent into the building can be cooled by watering and introduced as a cool wind.

  As shown in FIGS. 1 to 4, the watering curtain forming apparatus 10 according to a preferred embodiment of the present invention is, as a building 20, for example, the south side is an opening surface between the east side living part 11 and the west side living part 12. In a two-story wooden residential building provided with a courtyard 14, it is installed as an outer peripheral portion of the building 20, for example, at an entrance portion of the courtyard 14, and the supplied water is threaded along a vertical surface facing the airflow direction. It is used to form a watering curtain by guiding it to flow downward in the form of water.

  In other words, in the present embodiment, the building 20 includes, for example, an atrium 15 having a height of 1.5 layers facing the courtyard 14 in the north side of the courtyard 14 in consideration of the natural environment. Thus, the ventilation paths W1 and W2 passing through the north-side living part 13 are effectively formed. Moreover, the north side living part 13 is formed so that the coolness in summer and the warmth in winter can be felt without particularly using the air conditioning system. For example, in the hot summer season, The wind is actively taken in, and it is formed so that coolness by natural ventilation can be effectively obtained.

  The watering curtain forming apparatus 10 of the present embodiment is provided at the inlet portion of the ventilation paths W1 and W2 to the north side living part 13 by the courtyard 14, and the watering curtain that forms the wind from the south side taken into the courtyard 14 is formed. It is possible to pass through and cool the water using the transpiration action of water, and then send it to the north-side living part 13 to make the north-side living part 13 a living space that can feel cool more effectively in summer. To do.

And the watering curtain forming apparatus 10 of this embodiment is provided in the inflow port part of the ventilation path W1, W2 by the courtyard 14 as an outer peripheral part of the building 20, for example, and the supplied water is the vertical which opposes the introduction direction of a wind A watering curtain is formed by guiding it to flow downward in the form of thread water along the surface. By passing through the watering curtain, the wind introduced into the building 20 is cooled by the transpiration of water and then the building As shown in FIGS. 5 and 6 (a) to 6 (c), the apparatus is configured to be sent into the interior of the apparatus 20 with an interval in the vertical direction along the vertical plane facing the wind introduction direction. A watering louver 22 composed of a plurality of bar-shaped members 21 that are arranged in parallel and extend in the horizontal direction, and is arranged at a portion directly above the watering louver 22 to supply water toward the upper end of the bar-shaped member 21 at the uppermost stage. Multiple scattered Is constituted by a water supply sprinkling member 24 having a hole 23, and the rod-like member 21, the lower half is provided with an isosceles triangle cross-sectional shape of arranging the lower end corner portion to the central portion.

  In the present embodiment, as a floor plan of the first floor portion of the building 20, for example, as shown in FIG. 2, an entrance 62 that is accessible from the entrance porch 48 is provided in the south side portion of the west residence unit 12. A dirt space 63 is provided on the west side of the entrance 62. A first floor hall 26 is provided on the north side of the entrance 62, and a stairway 27 to the second floor is provided on the north side of the first floor hall 26. A Japanese-style room 28 is provided on the west side of the first floor hall 26, located on the north side of the soil space 63. On the north side of the Japanese-style room 28, a washroom 29 is located on the northwest corner of the west-side living part 12. A toilet 30 is provided.

  Further, adjacent to the east side of the hall 26 and the stairs 27 of the west side living part 12, a cool greenhouse 31 constituting the first floor part of the north side living part 13 is provided between the east side living part 11. The cool greenhouse 31 has a south side portion which is a 1.5-level ceiling-high portion 15 facing the courtyard 14, and a north side portion is partitioned from the outside by a north side outer wall 17. The auxiliary chamber 32 has a ceiling height equivalent to one layer.

Furthermore, the living dining kitchen 33 is adjacent to the east side of the cool greenhouse 31 and the courtyard 14 on the south side of the first floor portion of the east side residence portion 11 located on the opposite side of the west side residence portion 12 across the cool greenhouse 31. On the north side of the living-dining kitchen 33 , a watering room 34 including a washroom, a bathroom, and a toilet is provided adjacent to the east side of the cool greenhouse 31.

  In the present embodiment, as a floor plan of the second floor portion of the building 10 that goes up and down from the first floor portion via the stairs 27 provided in the west living portion 12, for example, as shown in FIG. A second floor hall 35 is provided on the south side, and a first western room 36 is provided adjacent to the west side of the staircase 27 and the second floor hall 35. In addition, a hut back storage 37 is provided so as to be arranged above the dirt 63 of the first floor portion, in a manner to be connected to the south end of the second floor hall 35. Furthermore, the upper part of the entrance porch 48 on the first floor is a first balcony 38 that can be accessed from the south end of the second floor hall 35. Furthermore, in the present embodiment, the east side surfaces of the entrance porch 48 and the first balcony 38 are partitioned from the courtyard 14 so that the partition wall 39 is along the east side surface of the entrance 62 and the second floor hall 35. It is continuously provided at a height that is higher by 0.5 layer than the first balcony 38.

  Further, adjacent to the east side of the second floor hall 35 and the staircase 27 of the west side living section 12, between the east side living section 11, the work room 40 is located on the north side of the north side living section 13, and the first floor section. The auxiliary chamber part 32 is disposed and provided above. In addition, the south side portion of the work chamber 40 is a space for the air vent 15 of the cool greenhouse 31 and the skip floor 16 is provided so as to cover the air vent 15 (see FIG. 4).

  Furthermore, a second western-style room 41 is provided on the north side of the second-floor portion of the east-side living part 11 located on the opposite side of the west-side living part 12 across the work room 40, and on the south side of the second western-style room 41. Is provided with a third Western room 43 having a walk-in closet 42 and a stairway 46 to the attic 18 that can be accessed from the second Western room 41. Further, on the south side of the third western-style room 43, a second balcony part 44 that can enter and exit from the third western-style room 43 is provided, and the outer peripheral part of the second balcony part 44 has a height of 0.5 layers. Surrounded by a handrail wall 45.

  Here, in the present embodiment, the height of the first balcony 38 and the floor of the second balcony 44 is approximately the same as the floor of the first balcony 38 and the second balcony 44 over the partition wall 39 of the west residence 12 from the south surface of the second balcony 44. In addition, a water supply parapet 47 that crosses the entrance portion of the courtyard 14 in a beam shape is provided. The water supply parapet 47 includes a water supply water sprinkling member 24 constituting the water spray curtain forming device 10 therein. Moreover, the water supply sprinkling member 24 provided in the water supply parapet 47 is connected to, for example, a water pipe or the like piped to the building 20, and an open / close valve is operated to, for example, tap water above the watering louver 22. Can be appropriately sprayed from the plurality of water spray holes 23 (see FIGS. 1 and 5).

  In this embodiment, in the attic room 18 of the north side living part 13 which goes up and down from the second floor part of the east side living part 11 through the stairs 46 provided in the 3rd Western room 43, as shown in FIG.4 and FIG.1. A skip floor 16 that covers the atrium 15 of the cool greenhouse 31 on the first floor is provided so as to protrude from the north end of the courtyard 14. In addition, the attic 18 has a height of about one layer by making the upper part bite into the attic part into a dome shape, thereby forming a space in which a resident can move while standing.

  The north part of the attic 18 located above the work room 40 is a step 49 that is 0.5 layers higher than the skip floor 16. The floor surface of the stepped portion 49 is formed by a lattice member 51 together with the ceiling surface of the work chamber 40, and ventilation from the work chamber 40 toward the attic room 18 is obtained through a gap portion between the lattice members 51. It is supposed to be. Moreover, the roof part ventilation opening 52 is arranged in three places in the state which can be opened and closed with an opening-and-closing fixture in the north side part of the roof 19 located in the part directly above the step part 49. FIG. Further, of the three roof portion ventilation openings 52, one roof portion ventilation opening 52 located on the west side is provided upright from the roof 19, and a lighting ventilation device 53 is provided at the upper end portion. The surrounding area is covered with the installed daylighting ventilation tower 54, and it is arranged at the lower end of this.

  And in this embodiment, in addition to the above-mentioned structure, for example, the courtyard 14 and the north side residence part 13 which are pinched | interposed by the east side residence part 11 and the west side residence part 12 are provided with various structures as follows. By making effective use of the natural environment of the sun and the sun, the north side living section 13 should be a comfortable living space where you can feel the coolness in summer and the warmth in winter without using air conditioning equipment. Can be done.

  That is, in the present embodiment, as shown in FIG. 1, the atrium 15 having a height of 1.5 layers of the north side living part 13 facing the courtyard 14 spans substantially the entire area facing the courtyard 14. There are provided a glass door 55 and a glass window 56 which can be opened and closed by a sash frame, which serve as a large-area ventilation opening or a lighting surface. A glass window 57 that can be opened and closed with a sash frame is provided on the outer wall 17 on the north side of the auxiliary chamber 32 of the cool greenhouse 31. By these, the ventilation path W1 which passes the north side outer wall 17 from the courtyard 14 via the north side residence part 13 is formed so that opening and closing is possible.

  Further, in the present embodiment, a narrow width is provided between the upper end portion of the waist wall 58 that partitions the blow-off portion 15 of the cool greenhouse 31 and the lower half portion of the work chamber 40 and the skip floor 16 above the blow-off portion 15. An opening 59 is held, and a glass window 60 that can be opened and closed by a sash frame is provided on the outer wall 17 on the north side of the working chamber 40. As a result, the ventilation path W1 passing through the outer wall 17 on the north side from the courtyard 14 via the blow-off portion 15 of the north side living section 13 and the work chamber 40 is formed to be openable and closable. In addition, after passing through the atrium 15 and the work room 40 of the north-side living part 13 from the courtyard 14, it reaches the stepped part 49 of the attic 18 through the lattice member 51 of the ceiling part of the work room 40, and further the ventilation opening of the roof part. The ventilation path W2 passing through 52 is formed to be openable and closable.

  Furthermore, in the present embodiment, a glass window 61 that can be opened and closed by a sash frame is provided on the south wall facing the courtyard 14 of the attic room 18, which is disposed under the eaves of the roof 19. As a result, the ventilation path W3 passing from the upper part of the courtyard 14 to the stepped part 49 via the attic 18 and passing through the roof ventilation opening 20 is formed to be openable and closable.

  And in this embodiment, as shown in FIG. 1, the supplied water is made to flow down in the form of thread water along the vertical surface opposite to the air flow direction at the inlets of the air passages W1, W2 by the courtyard 14. A watering curtain forming apparatus 10 for guiding and forming a watering curtain is provided. As shown in FIG. 5 and FIGS. 6A to 6C, the watering curtain forming apparatus 10 includes a watering watering member 24 provided inside a watering parapet 47 that traverses the entrance portion of the courtyard 14 in a beam shape. And watering louver 22.

  The water supply sprinkling member 24 is made of, for example, a hollow pipe member made of metal or synthetic resin and having an inner diameter of about 10 to 30 mm. The water supply sprinkling member 24 has at least one end connected to a water pipe or the like piped to the building 20 and a plurality of water sprinkles arranged on the outer peripheral surface in a row at a pitch of about 10 to 200 mm in the axial direction, for example. A hole 23 is formed, and an open / close valve is operated to supply the supplied tap water from the plurality of water spray holes 23 to the upper end portion of the uppermost rod-like member 21 of the water spray louver 22 positioned immediately below the water spray holes 23. Water can be sprayed as appropriate. Further, by attaching various known watering valves or the like to the watering hole 23, it is possible to appropriately adjust the watering angle, watering direction, watering amount, etc. from the watering hole 23.

  The watering louver 22 is constituted by a plurality of horizontally extending rod-like members 21 that are arranged in parallel in the vertical direction along a vertical plane facing the wind introduction direction. The watering louver 22 drops the water supplied from the watering hole 23 of the water supply watering member 24 while dropping along the rod-like member 21. Moreover, in the space | interval part of the upper and lower rod-shaped members 21, by the effect | action of the wind of the wind speed of about 0.7-6.0 m / s suitable for sending in the north side residence part 13 as a cool wind which passes the said space | interval part, Even if water drops or water flow falling in the form of thread water are struck, they are dropped on the lower rod-like member 21 having a considerable width, and these water drops and water flow are greatly increased from the vertical plane on which the watering louvers 22 are arranged. Prevent it from coming off. This effectively prevents the water sprinkling down along the sprinkling louver 22 from splashing over a wide range, and water droplets or water flow is formed in each space portion of the plurality of rod-like members 21 arranged at intervals in the vertical direction. It is possible to form a watering curtain along the watering louver 22 in a stable state by constantly generating a thread-like water flow.

  For this reason, the rod-like member 21 constituting the watering louver 22 has a width b1 of about 10 to 300 mm in the vertical direction and 10 in the vertical direction in a state of having a width b2 of about 10 to 300 mm in the front-rear direction. It is preferable to arrange in parallel with an interval s of about ˜300 mm. If the width b2 in the front-rear direction when the rod-shaped member 21 is attached is too small, water drops and water flow falling at the space between the upper and lower rod-shaped members 21 are easily swept by the action of the wind, and the watering louver 22 is arranged. It becomes easy to come off greatly from the established vertical plane. If the width b2 in the front-rear direction is too small, it is difficult to drop water droplets or water currents on the gaps. Further, if the vertical width b1 of the rod-like member 21 is too small or the interval s is too wide, the water droplets and water flow falling at the interval will be easily beaten by the action of the wind. If the vertical width b1 of the rod-shaped member 21 is too large or the interval s is too narrow, it is difficult to pass the wind sent to the north-side resident portion 13.

In the present embodiment, the rod-shaped member 21 is made of, for example, ceramic, metal, synthetic resin, and the like, and the lower half has a cross-sectional shape of an isosceles triangle in which the lower end corner portion is arranged at the central portion, and is about 55 mm in length and width. It has a square hollow cross-sectional shape. Each bar-like member 21 is preferably fixed to a support 25 made of H-shaped steel, which is provided by being vertically fixed from the bottom part of the courtyard 14, for example, a fixture 66 (see FIGS. 6B and 6C). And both ends are supported and fixed by welding so that one diagonal direction is along the vertical direction and the other diagonal direction is along the horizontal direction. Each bar-shaped member 21 is formed in a square cross-sectional shape, and one diagonal direction is attached along the vertical direction, and the other diagonal direction is attached along the horizontal direction, thereby supplying the upper end corner from above. The sprinkled water is allowed to flow downward along the slopes on both sides and returned to the central portion along the vertical plane where the lower end corner is disposed, and then the sprinkled water can be dropped toward the lower bar-shaped member 21. Therefore, the watering curtain along the watering louver 22 can be formed in a more stable state.

  Accordingly, in the present embodiment, the plurality of rod-like members 21 are attached by being arranged in parallel in the horizontal direction at a center-to-center pitch of about 153 mm with an interval s of about 77 mm in the vertical direction, for example. The sprinkler louver 22 has a rectangular front shape with a width of about 3900 mm and a height of about 2400 mm as a whole so as to cover and cover the entrance portion of the courtyard 14 below the water supply parapet 47. Will be installed.

  Moreover, in this embodiment, it is arrange | positioned at the back side of the watering curtain formation apparatus 10, and the planting 50 is given to the inflow port part of the ventilation path W1, W2 by the courtyard 14. As shown in FIG. In this embodiment, the planting 50 is preferably made of deciduous trees such as dogwood and zelkova, and is planted on the back side of the watering louver 22 in a state of being rooted in the planting part 64 provided in the bottom board part of the courtyard 14. Yes.

  Further, in the present embodiment, a water reservoir 65 is provided in a portion around the watering louver 22 and the implantation part 64 in the bottom part of the courtyard 14. The water reservoir 65 stores water from the watering curtain that has flowed down along the watering louver 22. Further, since the water reservoir 65 is provided at the bottom of the courtyard 14, it is possible to bring a cool atmosphere to the courtyard 14, and the wind passing near the water surface of the water reservoir 65 Using the transpiration action, it becomes possible to send it to the north-side living unit 13 as a cool breeze. The water stored in the water reservoir 65 can be circulated and used as water supplied from the water supply sprinkling member 24 by pumping it up via a pump device or the like.

  And according to the watering curtain formation apparatus 10 of this embodiment provided with the above-mentioned structure, it is inside the north side residence part 13 of the building 20, avoiding that the water sprinkled is blown by the wind and scattered over a wide range. It is possible to cool the wind sent by watering and introduce it as a cool wind.

  That is, according to the present embodiment, the watering curtain forming apparatus 10 is arranged in parallel with a space in the vertical direction along the vertical plane facing the wind introduction direction, and extends in the horizontal direction. A watering louver 22 composed of a rod-shaped member 21 and a water-supplying watering member 24 having a plurality of watering holes 23 that are arranged directly above the watering louver 22 and supply water toward the upper end of the uppermost rod-shaped member 21. Therefore, even if the wind from the south side of the building 20 taken into the courtyard 14 is a warm wind, by passing the interval portion of the rod-like member 21 of the watering louver 22 in which water droplets and water flow fall like a string, After cooling using the transpiration action of water, it becomes possible to send it to the north-side living part 13, which makes the north-side living part 13 feel cool more effectively in summer. It is possible to be.

  Further, the water by the water sprinkle supplied from the water supply sprinkling member 24 is guided by the plurality of rod-like members 21 constituting the watering louver 22 and flows downward along the rod-like member 21. Even if water drops and water flows falling by the action of wind passing through the water drops, these water drops and water flows can be effectively prevented from greatly deviating from the vertical plane on which the watering louvers 22 are arranged, As a result, it is possible to effectively avoid the water spray flowing down along the water spray louver 22 from being scattered over a wide range.

The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the rod-shaped member is not necessarily required to be provided with a hollow cross-sectional shape of the square may have a solid cross-sectional shape. For example, as shown in FIG. 7A, a rod-shaped member 67 having a circular shape in the upper half and an isosceles triangle in the lower half may be used. As shown in FIG. It may be a rod-shaped member 68 that has an L-shaped cross-section facing upward, overflows the water spray supplied from above, and then overflows and flows downward. Further, the watering curtain forming apparatus of the present invention does not necessarily need to be installed at the entrance portion of the courtyard of the building where the courtyard is provided, and in the outer peripheral portion of other various buildings, the vertical facing the wind introduction direction It can be provided along the surface. Furthermore, the watering curtain forming apparatus of the present invention can be used to cool the wind sent to the upper floor portion of the building without being limited to the first floor portion of the building.

It is sectional drawing along AA of FIG. 2 explaining the structure of the building provided with the watering curtain formation apparatus which concerns on preferable one Embodiment of this invention. It is a floor plan of the 1st floor part explaining the structure of the building provided with the watering curtain formation apparatus which concerns on preferable one Embodiment of this invention. It is a floor plan of the 2nd floor part explaining the structure of the building in which the watering curtain formation apparatus which concerns on preferable one Embodiment of this invention was provided. It is a floor plan of the attic part explaining the structure of the building in which the watering curtain formation apparatus which concerns on preferable one Embodiment of this invention was provided. It is sectional drawing explaining the structure of the watering curtain formation apparatus which concerns on preferable one Embodiment of this invention. (A) is a front view of a watering curtain forming apparatus according to a preferred embodiment, (b) is a partially broken sectional view along BB in (a), and (c) is along CC in (a). FIG. (A), (b) is sectional drawing which illustrates the other preferable shape of the rod-shaped member which comprises a watering louver.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sprinkling curtain formation apparatus 11 East residence part 12 West residence part 13 North residence part 14 Courtyard 20 Building 21, 67, 68 Bar-shaped member 22 Water sprinkling louver 23 Water sprinkling hole 24 Water supply sprinkling member 25 Strut 47 Water supply parapet 65 Water reservoir W1, W2 Ventilation path

Claims (4)

By being arranged on the outer periphery of the building and guiding the supplied water to flow down in the form of thread water along a vertical plane facing the wind introduction direction, forming a watering curtain, and passing through the watering curtain , A watering curtain forming device that cools the wind introduced into the building by the transpiration of water and then sends it into the building,
A watering louver composed of a plurality of rod-like members arranged in parallel in the vertical direction along the vertical plane facing the wind introduction direction and extending in the horizontal direction, and a portion directly above the watering louver is arranged, Ri Do and a water sprinkling member having a plurality of nozzle holes for supplying water toward the upper end portion of the uppermost of said rod-like member,
The rod-shaped member is a watering curtain forming apparatus in which the lower half has a cross-sectional shape of an isosceles triangle in which a lower end corner portion is arranged at a central portion .   The rod-shaped members constituting the watering louver are arranged in parallel with an interval of 10 to 300 mm in the vertical direction in a state having a width of 10 to 300 mm in the vertical direction and a width of 10 to 300 mm in the front and rear direction. The watering curtain forming apparatus according to claim 1.   The rod-shaped member constituting the watering louver has a square cross-sectional shape, and is attached in a state where one diagonal direction is along the vertical direction and the other diagonal direction is along the horizontal direction. The watering curtain formation apparatus of 1 or 2.   The sprinkling curtain forming apparatus according to any one of claims 1 to 3, wherein the bar-shaped member constituting the sprinkling louver is attached in a state where an end portion is supported and fixed to a support column standing from a bottom plate portion of an outer peripheral portion of a building.

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