JP2015140969A - building structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building structure capable of positively performing an air discharging of an air conditioner and reducing noise of an air conditioner more against surrounding neighborhood.SOLUTION: A building 1 includes a cylindrical discharging void 20 arranged inside this building 1 to extend in a vertical direction and cylindrical air supplying voids 21 arranged outside the discharging void 20 and extending in a vertical direction. The building 1 is provided with an opening 24 reaching from an upper end side of the discharging void 20 to outside, air supplying passages 26 reaching from the outside to the air supplying voids 21 and openings 27. Within the building 1 are installed package type air conditioners 60 for taking air from the air supplying voids 21, heat exchanging it and discharging air into the discharging void 20.

Description

  The present invention relates to a building structure having air conditioning equipment.

  Conventionally, air-conditioning equipment is provided in a building. This air conditioning equipment includes, for example, an outdoor unit installed on the roof of a building, and an indoor unit connected to the outdoor unit with a refrigerant pipe and installed indoors (see Patent Document 1).

  In such an air conditioning facility, the outdoor unit cools the refrigerant by exchanging heat between the refrigerant and the outside air. The cooled refrigerant reaches the indoor unit through the refrigerant pipe, and the indoor unit cools the indoor air by exchanging heat between the refrigerant and the indoor air. Thereby, although the temperature of a refrigerant | coolant rises, this refrigerant | coolant reaches | attains an outdoor unit again through refrigerant | coolant piping.

By the way, in a building having a large-scale air conditioning facility such as a data center, a large number of outdoor units are centrally installed on the roof.
In this case, a short circuit in which the exhaust of the outdoor unit adjacent to the outdoor unit is sucked into the suction port of the outdoor unit may occur, and air conditioning efficiency may be reduced.
In addition, since the outdoor unit is installed on the roof, the noise due to the operation of the outdoor unit reaches directly in the vicinity, and there is a problem that the noise increases.

In order to solve these problems, for example, the following building structure has been proposed (see Patent Document 1).
That is, an atrium is provided in the center of the building, and an exhaust device for recovering and exhausting heat from the air in the atrium is connected to the top of the atrium. In addition, a plurality of outdoor units are installed around the atrium of each floor. The suction port of each outdoor unit faces the outside, and the exhaust port of each outdoor unit communicates with the blow-through through the exhaust duct.

According to such a building, since the outdoor unit is arranged on each floor, it is not necessary to arrange the outdoor units close to each other, so that the occurrence of a short circuit can be suppressed.
Moreover, since the outdoor unit is installed on each floor in the building, noise leaking from the exhaust port of the outdoor unit can be reduced.

Japanese Patent Laid-Open No. 2003-343881

However, the above building structure has a problem that the air in the blow-out cannot be exhausted when the exhaust device fails.
In addition, since the air inlet of the outdoor unit on each floor faces the outside, noise leaking from the air inlet of the outdoor unit still reaches the vicinity, so that it is required to further reduce the noise.

  An object of this invention is to provide the building structure which can exhaust air conditioner reliably and can further reduce the noise to the neighborhood by an air conditioner.

  The building structure according to claim 1 is a cylindrical first void provided in a building (for example, building 1 described later) extending in the vertical direction, and provided in the vertical direction outside the first void. A cylindrical second void extending, and one of the two voids is an air supply void (for example, an air supply void 21 described later), and the other is an exhaust void (for example, an exhaust void 20 described later). In the building, an exhaust path (for example, an opening 24 described later) from the upper end side of the exhaust void to the outside, and an air supply path (for example, an air supply path 26 described later, an opening) from the outside to the supply air void. 27), and an air conditioner (for example, a packaged air conditioner 60 to be described later) that takes in air from the air supply void, exchanges heat, and discharges it to the exhaust void is provided inside the building. It is characterized by that.

According to this invention, the exhaust void and the air supply void are provided inside the building. That is, a double-structured void that separates the outside air supplied to the air conditioner and the exhaust discharged from the air conditioner is provided. In addition, an air conditioner was installed in the building, and the air taken in from the supply air void was exchanged by this air conditioner and discharged into the exhaust void.
Therefore, mixing of the air supply and the exhaust of the air conditioner is prevented, and air conditioning can be performed efficiently.
In addition, the air inlet of the air conditioner faces the air supply void in the building, and the air outlet of the air conditioner faces the exhaust void in the building, so there is noise leaking from the air inlet and exhaust of the air conditioner. Since it can be prevented from reaching the neighborhood directly, noise to the neighborhood by the air conditioner can be further reduced.

  In addition, since the upper end side of the exhaust void is communicated to the outside through the exhaust path, the air in the exhaust void can be reliably exhausted without providing an exhaust device as in the prior art.

  The building structure according to claim 2 is characterized in that the air supply passage extends from the outside to the lower end side of the air supply void through a pit on the foundation of the building.

  According to the present invention, since the outside air is introduced into the air supply void via the pits on the foundation of the building, the outside air can be cooled using the underground heat, so that the cost for air conditioning in the building can be reduced.

  In the present invention, the air conditioner can be reliably exhausted, and noise to the neighborhood by the air conditioner can be further reduced.

1 is a longitudinal sectional view of a building to which a building structure according to an embodiment of the present invention is applied. It is a top view of the floor used as the server room of the building concerning the embodiment. It is a longitudinal cross-sectional view (the 1) of the floor used as the server room of the building which concerns on the said embodiment. It is a longitudinal cross-sectional view (the 2) of the floor used as the server room of the building which concerns on the said embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional view of a building 1 to which a building structure according to an embodiment of the present invention is applied. FIG. 2 is a plan view of the floor 11 serving as the server room 41 of the building 1. In FIG. 1 to FIG. 4, white arrows indicate a flow of cold air, and black arrows indicate a flow of warm air.

  Building 1 is a data center and is a seven-story building constructed with a seismic isolation structure. The building 1 includes a foundation 10 and floors 11 from the first floor to the seventh floor provided on the foundation 10.

  In the center of the interior of the building 1, there is an exhaust void 20 as a cylindrical first void extending in the vertical direction, and a cylindrical shape as a second void provided outside the exhaust void 20 and extending in the vertical direction. An air supply void 21 is provided.

  That is, the exhaust void 20 and the air supply void 21 are provided through the foundation 10 and the respective floors 11 from the first floor to the seventh floor. Here, the exhaust void 20 and the air supply void 21 are partitioned by the inner partition wall 22, and the air supply void 21 and the server room 41 of each floor 11 are partitioned by the outer partition wall 23. The height of the inner partition wall 22 is higher than the height of the outer partition wall 23.

  The foundation 10 includes a pressure plate 30 and a foundation beam 32 supported on the pressure plate 30 via a seismic isolation device 31. A space surrounded by the pressure platen 30, the foundation beam 32, and the first floor is a pit 33.

  At the upper end of the exhaust void 20, an opening 24 is formed as an exhaust path that communicates the inside and the outside of the exhaust void 20.

At the upper end of the air supply void 21, an opening 27 that connects the inside and the outside of the air supply void 21 is formed.
A grating floor 25 is provided at the height level of each floor 11 of the air supply void 21.
In addition, a communication hole 34 is provided in the foundation beam 32 between the pit 33 and the air supply void 21 so that the pit 33 and the air supply void 21 communicate with each other.

Each floor 11 from the third floor to the seventh floor of the building 1 is a server room 41 in which the server 40 is accommodated.
On the first and second floors of the building 1, a central management room 50, a monitoring room 51, and an extra high electrical room 52 for managing the entire building 1 or the server room 41 are provided. That is, the left part in FIG. 1 of the air supply void 21 on the first floor of the building 1 is the central management room 50, and the left part in FIG. 1 of the air supply void 21 on the second floor is the monitoring room 51. It has become. Further, the portion on the right side in FIG. 1 of the air supply void 21 on the first floor is an atrium up to the second floor, which is an extra high electrical room 52.

  An air supply chamber 53 is provided on the outer wall surface 2 side of the first floor of the building 1. The air supply chamber 53 communicates with the outside and the pit 33. A path from the outside through the air supply chamber 53 and the pit 33 to the lower end side of the air supply void 21 is an air supply path 26.

FIG. 3 is a longitudinal sectional view of the floor 11 that becomes the server room 41 of the building 1.
The server room 41 is provided with a double floor 42. On the double floor 42, servers 40 are accommodated in a plurality of rows, and a plurality of packaged air conditioners 60 are installed. ing.
Each packaged air conditioner 60 includes an indoor unit 70, an outdoor unit 80 connected to the indoor unit 70 through a refrigerant pipe (not shown), and an exhaust damper 90.

  The indoor unit 70 is arranged side by side along the outer partition wall 23 on the floor of the server room 41 (see FIG. 2), and a mixing chamber 71 and an air supply damper 72 are provided on the top of the indoor unit 70. ing.

  The indoor unit 70 takes in the air near the ceiling of the server room 41 through the mixing chamber 71 and cools the taken-in air by exchanging heat with the refrigerant in the refrigerant pipe. Supply to 42 underfloor spaces.

The air supply damper 72 communicates the mixing chamber 71 and the air supply void 21 and can be opened and closed.
The exhaust damper 90 communicates the server room 41 and the exhaust void 20 and can be opened and closed.

The outdoor unit 80 is arranged side by side along the inner partition wall 22 on the grating floor 25 of the air supply void 21 (see FIG. 2).
The outdoor unit 80 takes in the air in the air supply void 21 and exchanges heat with the refrigerant in the refrigerant pipe, thereby cooling the refrigerant and discharging the air warmed by the heat exchange to the exhaust void 20.

When the outside air temperature is not so low, the above packaged air conditioner 60 performs an indirect cooling operation as follows.
That is, the outdoor unit 80 is operated, and as shown by the arrows in FIG. 3, the air in the air supply void 21 is taken in, heat is exchanged with the refrigerant in the refrigerant pipe, and the refrigerant is cooled. Warm air is discharged to the exhaust void 20.

At this time, as indicated by arrows in FIG. 1 and arrows in FIG. 3, fresh outside air is supplied from the supply chamber 53 through the supply passage 26 to the supply void 21 and through the opening 27. , And supplied to the air supply void 21.
Further, the warm air in the exhaust void 20 rises and is discharged outside through the opening 24.

  Moreover, the indoor unit 70 is operated, and as shown by an arrow in FIG. 3, the air in the vicinity of the ceiling of the server room 41 is taken in and cooled by exchanging heat with the refrigerant in the refrigerant pipe. Supply to the underfloor space of the heavy floor 42. The air supplied to the underfloor space of the double floor 42 cools and warms the server 40 and reaches the vicinity of the ceiling of the server room 41 again.

When the outside air temperature is sufficiently low, the package type air conditioner 60 described above performs a direct cooling operation (outside air cooling operation) as follows.
That is, the indoor unit 70 is operated, and the air in the vicinity of the ceiling of the server room 41 is taken into the mixing chamber 71 as shown by the arrow in FIG. Air is introduced into the mixing chamber 71.

  The indoor unit 70 cools the mixing chamber 71 by mixing the air taken in from the air supply void 21 with the air taken in from the server room 41, and this cooled air is subfloor space of the double floor 42. To supply. The air supplied to the underfloor space of the double floor 42 cools and warms the server 40 and reaches the vicinity of the ceiling of the server room 41 again.

  At this time, the exhaust damper 90 is appropriately opened, and warm air in the vicinity of the ceiling of the server room 41 is exhausted to the exhaust void 20 through the exhaust damper 90 as indicated by an arrow in FIG.

At this time, as indicated by arrows in FIG. 1 and arrows in FIG. 4, fresh outside air is supplied to the supply air void 21 through the supply air passage 26 and the opening 27.
Further, the warm air in the exhaust void 20 rises and is discharged outside through the opening 24.

According to this embodiment, there are the following effects.
(1) A double-structured void that separates the outside air supplied to the packaged air conditioner 60 and the exhaust discharged from the packaged air conditioner 60 is provided. Further, the packaged air conditioner 60 was arranged in the building 1, and the air taken in from the supply air void 21 by the packaged air conditioner 60 was subjected to heat exchange and discharged to the exhaust void 20.
Therefore, mixing of the air supply and exhaust of the packaged air conditioner 60 is prevented, and air conditioning can be performed efficiently.
The intake port of the air supply damper 72 of the indoor unit 70 or the intake port of the outdoor unit 80 faces the air supply void 21 in the building 1, and the exhaust port of the exhaust damper 90 or the exhaust port of the outdoor unit 80 is the building. Because it faces the exhaust void 20 in 1, it is possible to prevent noise leaking from the suction port and exhaust port of the packaged air conditioner 60 from directly reaching the neighborhood, so that the noise to the neighborhood by the packaged air conditioner 60 is further increased. Can be reduced.

  Further, since the upper end of the exhaust void 20 is communicated to the outside through the opening 24, the air in the exhaust void 20 can be reliably exhausted without providing an exhaust device as in the prior art.

  (2) Since the outside air is introduced into the air supply void 21 via the pit 33 of the foundation 10 of the building 1, the outside air can be cooled using the underground heat, and the cost for air conditioning in the building 1 can be reduced.

It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in the present embodiment, the package type air conditioner 60 is used as the air conditioner, but the present invention is not limited thereto, and a fan coil unit or the like may be used.

In the present embodiment, the warm air in the exhaust void 20 is discharged to the outside as it is through the opening 24. However, the present invention is not limited thereto, and the warm air in the exhaust void 20 may be used for heating in winter.
In the present embodiment, the air supply path 26 that extends from the outside to the lower end side of the air supply void 21 and the opening 27 that extends from the outside to the upper end side of the air supply void 21 are provided. Only one of the two may be provided.

DESCRIPTION OF SYMBOLS 1 ... Building 10 ... Foundation 11 ... Each floor 20 ... Exhaust void 21 ... Supply air void 22 ... Inner partition wall 23 ... Outer partition wall 24 ... Opening (exhaust passage)
25 ... Grating floor 26 ... Air supply path 27 ... Opening 30 ... Pressure-resistant panel 31 ... Seismic isolation device 32 ... Base beam 33 ... Pit 34 ... Communication hole 40 ... Server 41 ... Server room 42 ... Double floor 50 ... Central management room 51 ... Monitoring room 52 ... Special electric room 53 ... Air supply chamber 60 ... Package type air conditioner 70 ... Indoor unit 71 ... Mixing chamber 72 ... Air supply damper 80 ... Outdoor unit 90 ... Exhaust damper

Claims (2)

A cylindrical first void provided in the building and extending in the vertical direction; and a cylindrical second void provided outside the first void and extending in the vertical direction;
One of the two voids is an air supply void and the other is an exhaust void.
The building is provided with an exhaust path from the upper end side of the exhaust void to the outside, and an air supply path from the outside to the air supply void,
The building structure is characterized in that an air conditioner that takes in air from the air supply void, exchanges heat, and discharges the air to the exhaust void is provided inside the building.   2. The building structure according to claim 1, wherein the air supply path extends from the outside through a pit on the foundation of the building to a lower end side of the air supply void.

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