JP6996112B2 - Building structure - Google Patents

Description

The present invention relates to a building structure for cooling the internal space of a building.

In a building such as a data center, the information processing device is usually cooled in order to fully exert the function of the high-performance server (information processing device) to be arranged. In this case, in order to efficiently cool the heat-generating information processing apparatus, a technique of arranging a server so that a cold aisle and a hot aisle are formed is also being studied (see, for example, Patent Document 1). In Patent Document 1, cold air supplied from an air conditioner is introduced through a cold air suction port provided on the bottom surface side of the housing, and hot air is introduced through an exhaust suction port provided on the back surface side of the housing. A rack-type air conditioner that exhausts air is described on the aisle side.

Further, when cooling an information processing apparatus, a technique for taking in cold outside air to save power is also being studied (see, for example, Non-Patent Document 1). In Non-Patent Document 1, cold air is taken in from the outside of the side surface of the building, and the cold air is used to cool the information processing apparatus. Then, the warm air generated by cooling is discharged from the upper part of the chimni provided in the center of the building.

Japanese Unexamined Patent Publication No. 2009-236335

Nihon Sekkei Co., Ltd., IDC Frontier Co., Ltd., Shimizu Corporation, Shinryo Refrigeration Industry Co., Ltd., "The building itself is an equipment machine Next-generation data center 13th Environment / Equipment Design Award II. Shirakawa Daiichi Data Center "[online] [Searched April 15, 2017], Internet <http://abee.or.jp/designaward/past/13/docs/15.pdf>

As shown in Non-Patent Document 1, when a chimni that discharges warm air generated by cooling is provided in the building, the internal space is divided by the arrangement of the chimni, and the degree of freedom in layout is reduced. In addition, if there is a chimni above the internal space, it is necessary to configure it so that rain or the like does not infiltrate from the chimni, which may complicate the building structure.

-The building structure for solving the above problems is a building structure having an internal space surrounded by the outer wall of the building, and an exhaust duct for discharging warm air from the internal space is connected to the outer wall of the building. A chimni is provided along the outer side surface. As a result, since the chimni is provided on the outside of the outer wall of the building, the degree of freedom in the layout of the internal space can be increased.

-In the building structure, it is preferable that the wall member of the chimni protrudes from the outer wall of the building on the upper floor of the building and is attached to a support member provided inside the chimni. As a result, the chimni can be supported by using the support member protruding from the outer wall of the building.

-In the building structure, the support member is preferably a balcony configured by grating. As a result, the grating does not hinder the rise in warm air, and the chimni can be supported by the balcony.

-In the building structure, an outside air intake portion for supplying outside air to the internal space is provided on the wall of the chimni opposite to the building outer wall , and the outside air intake portion and the internal space are provided in the chimni. It is preferable to arrange an outside air duct that communicates. As a result, the outside air can be efficiently taken in from the outside air intake portion side of the building.

-In the building structure, it is preferable that the chimni closes the lowermost part of the chimni. As a result, even if there is an outside air intake port near the bottom of the chimni, it is possible to suppress a short circuit between the exhaust and the supply air.

-In the building structure, it is preferable that the chimni closes the uppermost portion and is provided with an exhaust port that opens to the uppermost portion side of the building below the uppermost portion. As a result, even if there is an outside air intake port near the top of the chimni, it is possible to suppress a short circuit between the exhaust and the supply air. Further, the influence of the outside wind pressure can be reduced.

According to the present invention, the chimni can be used to efficiently cool the interior space of the building.

Schematic cross-sectional view of the entire building in this embodiment. Partially enlarged cross-sectional view of the main part of the building in this embodiment. It is a plan view of the main part of a building in this embodiment, (a) shows the 1st floor, (b) shows the 3rd floor part. Partially enlarged cross-sectional view of the main part of the building in this embodiment.

Hereinafter, an embodiment in which the building structure is embodied will be described with reference to FIGS. 1 to 4. FIG. 1 is a schematic cross-sectional view of the entire building structure. In addition, in FIG. 1, the piping and the like installed in the building are omitted. 2 and 4 are partially enlarged cross-sectional views of a main part of the building 10. 3A and 3B are plan views of the main parts of the first and third floors of the building 10.

As shown in FIG. 1, the building 10 using the building structure of the present embodiment is used as a data center or the like, and includes a building main body 11 and a chimni 30. The building 10 includes columns 12 and beams 13 constituting the building body 11, and a seismic isolation layer L1 arranged underground. A plurality of isolators and dampers (not shown) are arranged in the seismic isolation layer L1. The isolator Is is provided at a position corresponding to the pillar 12 or the like.

The building body 11 is a three-story building having a rooftop floor (fourth floor), and is made of steel frame or reinforced concrete. The building body 11 includes floor slabs 16, 17, 18, 19 and a building outer wall 20 attached to the beam 13. The building outer wall 20 covers the outer periphery of the internal space partitioned by the skeletons of the columns 12 and the beams 13. On the outer wall 20 of the building, chimni 30 are provided on both outer surfaces facing each other. The details of this chimni 30 will be described later.

<Internal configuration of the building body 11>
Next, the internal configuration of the building body 11 will be described.
The first floor is divided by a floor slab 16 on the first floor and a floor slab (ceiling slab on the first floor) 17 on the second floor. The second floor is divided by a floor slab 17 on the second floor and a floor slab (ceiling slab on the second floor) 18 on the third floor. The third floor is divided into a floor slab 18 on the third floor and a floor slab (ceiling slab on the third floor) 19 on the fourth floor.

The first machine room R1, the air conditioning machine room M1, and the corridor P1 are partitioned on the first floor. Further, an electric room Rp and a corridor P2 are partitioned on the second floor. Further, on the third floor, the second machine room R2, the air conditioning machine room M2, and the corridor P3 are partitioned as in the first floor.

As shown in FIGS. 3A and 3B, the air conditioning machine rooms M1 and M2 are arranged on both outer sides (chimni 30 side) of the machine room (R1, R2). Further, the corridors P1 to P3 on each floor are arranged at the same position so as to surround the outer periphery of the building main body 11.

An information processing device (so-called supercomputer) that performs large-scale high-speed arithmetic processing is arranged in the first machine room R1. Further, an information processing device such as a server is arranged in the second machine room R2.

Electrical equipment is arranged in the electric room Rp shown in FIG. This electrical equipment is equipment that supplies electricity to the information processing devices arranged in the first and second machine rooms R1 and R2. A truss beam Tb is provided in the center of the electric room Rp. The truss beam Tb includes a lower chord member attached to the floor slab 17 on the second floor, and an oblique member connecting the upper chord member, the lower chord member, and the upper chord member attached to the floor slab 18 on the third floor.

<Ventilation equipment in building 10>
Next, the ventilation system of the building 10 will be described in detail with reference to FIG.
The building main body 11 is provided with balcony floors 22, 23, 24 protruding outward from the building outer wall 20. The balcony floors 22, 23, and 24 are provided at positions flush with the floor slabs 17, 18, and 19 on the second, third, and fourth floors of the building body 11, respectively. The balcony floors 22, 23, 24 of the present embodiment function as support members for the chimni 30, and are configured by grating.

As shown in FIG. 3, the wall member 31 of the chimni 30 is attached to each of the balcony floors 22 to 24. In FIG. 3, the chimni 30 is shown thick. The wall member 31 covers the side surface of the balcony floors 22 to 24. The end portion of the wall member 31 is in close contact with and integrated with the building outer wall 20, and the wall member 31 constitutes a side wall of the chimni 30 together with the building outer wall 20. Further, the wall member 31 is provided with an opening on the opposite side of the building outer wall 20. An air supply louver as an outside air intake is installed in this opening.

Further, as shown in FIG. 2, the lower end portion of the chimni 30 extends to substantially the same height as the ceiling surface structure C1 on the first floor. The lower surface of the chimni 30 is provided with a closing member 32 that closes the lower surface of the space surrounded by the wall member 31 and the building outer wall 20.

The upper end of the chimni 30 extends to a height exceeding the roof of the building body 11. A roof 35 is provided at the upper end of the chimni 30. Below the roof 35, an opening 36 is provided on the rooftop (fourth floor of the top floor) side of the building 10. Further, in the present embodiment, the plate member 37 is arranged on the roof so as to face the opening 36 at a distance from the opening 36 of the chimni 30.

Further, in the present embodiment, the filter units 41 and 42 are mounted on the balcony floors 22 and 23 on the second and third floors in the chimni 30. Each of the filter units 41 and 42 is connected to the air supply louver of the wall member 31, respectively.

On the other hand, air conditioners 45 and 46 are arranged in the air conditioning machine rooms M1 and M2 on the first and third floors in the building 10. The air conditioner 45 on the first floor communicates with the filter unit 41 on the second floor via the outside air duct 43, and the air conditioner 46 on the third floor communicates with the filter unit 42 on the third floor via the outside air duct 44. There is. Each of the air conditioners 45 and 46 has a built-in circulation fan.

Further, each floor of the building 10 has a double floor structure except for the corridors P1 to P3. Floor structure 16a, 18a are arranged on the floor slabs 16 and 18 on the first and third floors, supported by a floor support (not shown). An underfloor space is formed between the floor slabs 16 and 18 and the floor structure 16a and 18a. These underfloor spaces have a height of less than 1 m, and are used for laying electrical wiring and diffusing cold air from the air conditioners 45 and 46.

Further, the ceiling surface structures C1 and C2 are provided in the first and second machine rooms R1 and R2. Floor slabs 17 and 19 on the second and fourth floors and ceiling surface structures C1 and C2 form ceiling backs in the first and second machine chambers R1 and R2, respectively. In the present embodiment, the attic has a height of about 2 m to 2.5 m. Each ceiling surface structure C1 and C2 is provided with an air suction port (not shown). Further, the return air ducts 47 and 48 of the air conditioners 45 and 46 are arranged behind the ceiling. Each of the air conditioners 45 and 46 harmonizes the air of the first and second machine rooms R1 and R2 sucked into the return air ducts 47 and 48.

Further, in the corridors P1 and P3 on each floor, ceiling surface structures C10 and C20 are suspended by hanging tools (not shown) to form an attic. An exhaust duct 51 is arranged together with the above-mentioned outside air duct 43 in the ceiling of the corridor P1 and in the upper part of the air conditioning machine room M1. An exhaust duct 52 is arranged together with the above-mentioned outside air duct 44 in the ceiling of the corridor P3 and in the upper part of the air conditioning machine room M2.

As shown in FIGS. 3A and 3B, the exhaust ducts 51 and 52 pass through the air conditioning machine rooms M1 and M2 and the corridors P1 and P3, and pass through the first and second machine rooms R1 and R2. Communicate with Chimuni 30. The exhaust ducts 51 and 52 discharge the warm air generated from the machine rooms (R1 and R2) to the chimni 30. The exhaust ducts 51 and 52 are alternately arranged on the horizontal plane with the outside air ducts 43 and 44. Further, the suction ports of the exhaust ducts 51 and 52 are provided on the air conditioning machine room M1 and M2 sides of the suction ports of the return air ducts 47 and 48.

(Action)
Next, with reference to FIGS. 3 and 4, a cooling method using outside air will be described in the building 10 configured as described above.

As shown in FIG. 4, cold air is taken in from the outside of the building 10 through the outside air intake port of the air supply louver of the wall member 31 of the chimni 30. The outside air taken in from the outside air intake port of the air supply louver on the second floor passes through the filter unit 41 and is supplied to the air conditioner 45 on the first floor via the outside air duct 43. Further, the outside air taken in from the outside air intake port of the air supply louver on the third floor passes through the filter unit 42 and is supplied to the air conditioner 46 on the third floor via the outside air duct 44.

Then, as shown by the broken line arrow in FIG. 3A, the air conditioner 45 supplies cold air to the underfloor space on the first floor. This cold air is supplied to the first machine room R1 through the opening facing the cold aisle of the first machine room R1 through the underfloor space.

Further, as shown by the broken line arrow in FIG. 3B, the air conditioner 46 also supplies cold air to the underfloor space on the third floor. Then, this cold air is supplied to the second machine room R2 through the opening facing the cold aisle through the underfloor space.
Then, the warm air from the information processing equipment in the machine chambers (R1 and R2) is sucked through the suction ports of the ceiling surface structures C1 and C2, respectively.

As shown in FIG. 4, the warm air behind the ceiling of the first machine room R1 is sucked into the suction ports of the return air duct 47 and the exhaust duct 51, and the warm air behind the ceiling of the second machine room R2 is the return air duct 48. And it is sucked into the suction port of the exhaust duct 52. The warm air sucked into the return air ducts 47 and 48 is supplied to the air conditioners 45 and 46.

The warm air sucked into the suction port of the exhaust duct 51 of the first machine room R1 on the first floor is discharged to the chimni 30. Then, the warm air that has reached the chimni 30 rises in the chimni 30 while passing through the balcony floors 22 to 24 composed of the grating. Further, the warm air sucked into the suction port of the exhaust duct 52 of the second machine room R2 on the third floor is discharged to the chimni 30 and rises in the chimni 30.

Then, the warm air reaching the upper end of the chimni 30 reaches the roof 35 and is discharged from the chimni 30 through the opening 36. Further, the warm air discharged from the opening 36 of the chimni 30 is discharged above (outside) the building 10 from the space between the plate member 37 and the chimni 30.

According to this embodiment, the following effects can be obtained.
(1) In the building 10 of the present embodiment, chimni 30 are provided on both outer surfaces of the building outer wall 20 of the building main body 11. Exhaust ducts 51 and 52 communicating with the machine rooms (R1 and R2) of the building body 11 are connected to the chimni 30. As a result, since the chimni 30 is provided on the outside of the building body 11, a large machine room (R1, R2) without partitions can be secured, and the degree of freedom in layout of the machine room (R1, R2) can be increased. .. Further, since the chimni 30 is installed outside the building main body 11, the structure of the building 10 can be simply configured. Since the warm air naturally rises in the chimni 30, the warm air of the building 10 can be discharged and the machine rooms (R1 and R2) can be efficiently cooled.

(2) In the present embodiment, the wall member 31 of the chimni 30 is attached to the balcony floors 22 to 24 protruding from the building outer wall 20. Thereby, the chimni 30 can be supported on the outside of the building outer wall 20.

(3) In the present embodiment, the balcony floors 22 to 24 arranged in the chimni 30 are configured by grating. As a result, the balcony floors 22 to 24 do not interfere with the increase in warm air, and the warm air in the chimni 30 can be increased.

(4) In the present embodiment, the wall member 31 of the chimni 30 is provided with an air supply louver. The filter units 41 and 42 connected to the air supply louver are connected to the machine room (R1, R2) via the outside air ducts 43 and 44. As a result, the chimni 30 can be arranged on the outside air intake side of the building 10.

(5) In the present embodiment, the lower surface of the chimni 30 is provided with a closing member 32 that covers the space surrounded by the wall member 31 and the building outer wall 20. Thereby, even when the outside air is taken in from the side surface of the chimni 30, the leakage of the warm air from the lower end portion of the chimni 30 can be suppressed, and the short circuit between the exhaust (warm air) and the supply air (cold air) can be suppressed.

(6) In the present embodiment, a roof 35 is provided at the upper end of the chimni 30. Below the roof 35, an opening 36 is provided on the rooftop side of the building 10. This makes it possible to suppress a short circuit between the exhaust (warm air) and the supply air (cold air) on the upper side of the chimni 30. In addition, the influence of outside wind pressure can be reduced.

Moreover, the above-mentioned embodiment may be changed as follows.
-In the above embodiment, chimni 30 are provided on both side surfaces of the building 10, an air supply louver is provided on the wall member 31 of the chimni 30, and outside air is taken in from the air supply louver. The outside air intake portion is not limited to the case where it is provided on the chimni 30 side in the building 10. For example, a chimni 30 may be provided on one side surface of the building 10 and an outside air intake portion may be provided on the side surface of the building 10 on the opposite side of the chimni 30. The outside air intake portion may be provided on the side surfaces orthogonal to each other.

-In the above embodiment, a roof 35 is provided at the upper end of the chimni 30, and the hot air that reaches the roof 35 is discharged from the opening 36 on the building side (rooftop side). The relative position between the air supply louver of the outside air intake portion and the exhaust port of the chimni 30 may be changed to suppress a short circuit between the exhaust (warm air) and the supply air (cold air). In this case, the roof 35 may be omitted.

In the above embodiment, an exhaust duct 51 for communicating the first machine room R1 on the first floor and the chimni 30 is provided, and an exhaust duct 52 for communicating the second machine room R2 on the third floor and the chimni 30 is provided. The exhaust duct connecting the chimni 30 and the internal space may be provided on the second floor when the warm air is discharged from the second floor as well as the cooling target space for discharging the warm air.

In the above embodiment, the wall member 31 of the chimni 30 is supported by balcony floors 22 to 24 configured by grating. The support member of the chimni 30 is not limited to the balcony floors 22 to 24 configured by grating. For example, a plurality of support members dispersed outward from the outer wall 20 of the building may be extended to support the chimni.

-In the above embodiment, a closing member 32 for closing the lower surface of the space surrounded by the wall member 31 and the building outer wall 20 is provided on the lower surface of the chimni 30. As the closing member provided on the lower surface of the chimni 30, it may be an openable closing member that can be closed at any time. In this case, it is closed when the outside wind pressure is high and the air flow in the chimni is affected, and is normally opened.

C1, C2, C10, C20 ... Ceiling surface structure, Is ... Isolator, L1 ... Seismic isolation layer, M1, M2 ... Air conditioning machine room, P1, P2, P3 ... Corridor, R1 ... First machine room, R2 ... Second Machine room, Rp ... Electric room, Tb ... Truss beam, 10 ... Building, 11 ... Building body, 12 ... Pillar, 13 ... Beam, 16, 17, 18, 19 ... Floor slab, 16a, 18a ... Floor structure, 20 ... Building outer wall, 22, 23, 24 ... Balcony floor, 30 ... Chimuni, 31 ... Wall member, 32 ... Closing member, 35 ... Roof, 36 ... Opening, 37 ... Board member, 41, 42 ... Filter unit, 43 , 44 ... outside air duct, 45, 46 ... air conditioner, 47, 48 ... return air duct, 51, 52 ... exhaust duct.

Claims (5)

It is a building structure of a building with an internal space surrounded by the outer wall of the building.
An exhaust duct for exhausting warm air from the internal space is connected, and a chimni is provided along the outer surface of the outer wall of the building .
A building structure characterized in that the wall member of the chimni protrudes from the outer wall of the building on the upper floor of the building and is attached to a support member provided inside the chimni . The building structure according to claim 1 , wherein the support member is a balcony configured by grating. On the wall of the chimni opposite to the outer wall of the building , an outside air intake portion for supplying outside air to the internal space is provided.
The building structure according to claim 1 or 2, wherein an outside air duct that communicates the outside air intake portion and the internal space is arranged in the chimni. The building structure according to claim 3 , wherein the chimni is a closed bottom portion of the chimni. The building structure according to claim 3 or 4 , wherein the chimni closes the uppermost portion and is provided with an exhaust port that opens to the uppermost side of the building below the uppermost portion.

Images