JP2826270B2 - Perimeter air conditioning load reduction system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a perimeter air-conditioning load reduction system for an air-conditioning system, which reduces the load of rainfall in a perimeter section of the air-conditioning object.

[0002]

2. Description of the Related Art Solar radiation is one of the air-conditioning equipment which greatly affects the air-conditioning load (cooling load).
Solar radiation penetrates like a window glass, and heats indoor walls and equipment (desks, chairs, etc.), which becomes a cooling load. The cooling load due to the solar radiation varies depending on conditions such as the season, latitude, longitude, air pollution, and the like (city or mountainous area). In addition, if there is a glass transmittance or a window that blocks sunlight such as blinds or sunshades, the shielding reduces the cooling load.

Conventionally, as one of means for reducing the air-conditioning load of a perimeter, there is a method of providing an air inlet on a ceiling of a perimeter portion and exhausting exhaust heat from the air inlet.

[0004]

However, as described above, the means for providing heat to the ceiling by providing a blow-off port in the ceiling involves a rising air flow heated in the perimeter portion in the summer, so It makes sense to exhaust at. However, conversely, in the winter season, the air flows in a downward direction because the air in the perimeter portion is cooled. For this reason, when exhausting air from the ceiling surface, the flow is reversed, and there is a problem that it is difficult to obtain the effect of exhaust heat (exhaust cooling).

SUMMARY OF THE INVENTION An object of the present invention is to provide a perimeter air-conditioning load reduction system capable of effectively discharging heat (cooling) of a perimeter portion regardless of the season or the like.

[0006]

According to a first aspect of the present invention, there is provided a peri-counter provided with a plurality of exhaust ports provided on an upper surface of the peri-counter so as to communicate with the plurality of exhaust ports. A first exhaust duct, and a second duct disposed in the ceiling in a state of communicating with a plurality of exhaust ports provided on a ceiling surface immediately above the peri-counter. A plurality of dampers for selectively communicating between the first exhaust duct or the second exhaust duct and the outside;
An exhaust fan for forcibly exhausting the air from the damper to the outside is provided.

According to a second aspect of the present invention, there is provided the perimeter air-conditioning load reducing system according to the first aspect, further comprising a plurality of air outlets and exhaust ports provided on a ceiling surface of the interior portion, and a downstream side of the exhaust fan. And a damper for selectively communicating the first exhaust duct and the second exhaust duct to an outdoor or under-the-ceiling space, and air taken in the under-the-ceiling space and air-conditioned into the ceiling. And an interior air conditioner that blows out from a plurality of outlets provided on the surface.

[0008]

According to the first aspect of the present invention, the exhaust system is switched between the ceiling above the perimeter and the peri-counter below by opening and closing the damper. For this reason, the air in the perimeter section is cooled and lowered by the influence of the outside air, and the damper is opened and closed in accordance with a change in which the air is heated and risen. , And the warm air that is heated and rises in summer is discharged from above the perimeter. As a result, exhaust heat (exhaust cooling) of the perimeter section is effectively performed.

Further, according to the present invention, when the interior air conditioner is in the cooling operation state in winter, the damper is switched so that the cool air exhausted from below the perimeter section is introduced into the ceiling. Separately, the air exhausted from the ceiling exhaust port and the cool air are mixed, and the mixed air is sent to the air conditioner. As a result, the indoor air-conditioning load is reduced, and the air-conditioning operation cost is reduced. on the other hand,
When the interior air conditioner is in cooling operation in summer,
By switching the damper so that the warm air exhausted from above the perimeter section is exhausted to the outside, the indoor exhaust heat is effectively performed.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a system diagram showing a perimeter air-conditioning load reduction system according to the present invention. FIG. 2 is a sectional view of the configuration of FIG. 1 as viewed from the side.

In FIG. 1, a building having a plurality of floors (hereinafter, referred to as a "building") is assumed as a building. Here, among the plurality of floors, a floor, (a + 1) floor, (a)
(+2) Only the floor is shown (showing a cross section of the indoor side from the inside immediately near the window).

Each floor of the building 1 is partitioned by a ceiling slab 2 and a peri counter 3 is provided along a window. In the ceiling, an exhaust duct is provided above the ceiling (parallel along the window).
The ceiling finishing material 4 is stretched in a state where a space capable of accommodating is secured. An exhaust port 5 is provided at a required location on the upper surface of the peri counter 3, and an exhaust port 6 is provided on the ceiling finishing material 4 along a window. An exhaust duct (first exhaust duct) 7 disposed in the peri counter 3 is commonly connected to each of the exhaust ports 5 provided in the peri counter 3, and a motor damper 9 is connected to an end thereof. Have been.

An exhaust duct (second exhaust duct) 8 disposed inside the ceiling is commonly connected to each of the exhaust ports 6 provided in the ceiling finishing material 4, and an end of the exhaust duct 8 is provided at the end. The motor damper 10 and the exhaust fan 11 are connected in order from the exhaust port 6 side. The exhaust fan 11 is in communication with an exhaust gallery 12 disposed so as to be in contact with the outside air.
Further, the motor damper 9 provided in the exhaust duct 7 and the exhaust fan 11 are connected through the ceiling slab 2, and in the middle thereof, the smoke interlocking damper 1 is provided in accordance with the Building Standard Law.
3 is installed.

As shown in FIG. 2, a blind 15 is mounted on the inside of the room facing the window glass 14 installed on the outer wall so as to be movable up and down. The exhaust port 5 and the exhaust port 6 are
It is arranged so as to be located between the blind 15 and the window glass 14, so that the perimeter can be exhausted regardless of whether the blind 15 moves up or down.

In the above configuration, first, the air conditioning control in summer will be described. In this case, the peri counter 3
The motor damper 9 and the smoke sense interlocking damper 13 provided in the exhaust duct 7 in the inside are closed. At the same time, the motor damper 10 provided in the exhaust duct 8 inside the ceiling is opened. The exhaust fan 11 is operated in such a state. Thus, in the perimeter section on each floor, the exhaust from the floor is stopped, and exhaust is performed from the ceiling on each floor.

As a result, the warm air that has been warmed by the influence of the outside air and rises at the window near the indoor is sucked into the exhaust duct 8 through the exhaust port 6 in the ceiling, and is exhausted by the exhaust force of the exhaust fan 11 through the motor damper 10. It is released to the atmosphere through 12. Thus, in summer, exhaust is performed from the ceiling of the perimeter section.

On the other hand, in winter, the motor damper 9 provided in the exhaust duct 7 in the peri-counter 3 and the smoke-sensing interlocking damper 13 are opened, and the motor damper 10 provided in the exhaust duct 8 in the back of the ceiling. The exhaust fan 11 is operated in a state where is closed. As a result, in the perimeter section of each floor, exhaust is performed from the floor, and exhaust from the ceiling is stopped.

As a result, the cool air which has been cooled down by the influence of the outside air at the window near the indoor and descends is discharged to the exhaust port 5 of the peri counter.
Through the exhaust duct 7, and through the motor damper 9, the exhaust gallery 12
Through the atmosphere. As described above, in winter, exhaust is performed from the floor of the perimeter section.

As described above, in the embodiment of FIG. 1, attention is paid to the fact that the direction of air flow in the perimeter section is reversed according to the season and the like due to the influence of outside air. By switching to one of the side or the ceiling side above and forming an exhaust flow in the same direction as the air flow, it is possible to efficiently perform exhaust heat (exhaust cooling).

Embodiment 2 FIG. 3 is a system diagram showing another embodiment of a perimeter air-conditioning load reducing system according to the present invention. The ceiling on the upper floor indicates the configuration of the interior unit, and the floor on the upper floor and the ceiling on the lower floor indicate the configuration of the perimeter unit. On each floor of the building 16, a peri counter 17 is installed along the window.
A ceiling finishing material 18 is attached to the ceiling, and the ceiling finishing material 18 is provided with a plurality of exhaust ports 20 and a plurality of outlets 21 (shown only on the upper floor) corresponding to the interior. I have. Further, an exhaust duct (first exhaust duct) 22 is provided in the peri counter 17, and an exhaust duct (second exhaust duct) 23 (only on the lower floor) is provided behind the ceiling finishing material 18 along the window side. (Shown). A plurality of exhaust ports 24 communicating with the exhaust duct 22 are provided on the upper surface of the peri counter 17, and a plurality of exhaust ports 25 (shown only on the lower floor) are communicated with the exhaust duct 23 on the surface of the ceiling finishing material 18. ) Is provided.

A motor damper 2 is provided at an end of the exhaust duct 22.
6 is connected, and a motor damper 27 is connected to an end of the exhaust duct 23. Motor dampers 26, 27
Are connected to an exhaust fan 28, and motor dampers 29 and 30 are connected to the exhaust fan 28 in parallel. The exit side of the motor damper 29 communicates with the ceiling above the upper floor, and the motor damper 30 has a louver 3 provided in the outer wall.
It communicates with 1. Reference numeral 33 denotes an upright duct space provided so as to communicate the floor portion and the ceiling portion, and a motor damper 29 is installed therein.

Further, an interior air conditioner 32 is installed outdoors. The interior air conditioner 32 air-conditions the air taken in from behind the ceiling, and outputs the air-conditioned air to the outlet 21.
Through to the interior of the room.
In addition, the peri counter 17 provided on the upper floor and the exhaust duct corresponding thereto are also provided on the lower floor, and the exhaust port 25 provided on the lower floor and the exhaust duct corresponding thereto are also provided on the upper floor. However, illustration is omitted in FIG.

In the summer operation of this embodiment, the motor dampers 27 and 30 are opened and the motor dampers 2 and 30 are opened.
6 and 29 are closed, and the exhaust fan 28 is operated.
As a result, the warm air that has been warmed by the influence of the outside air and rises in the perimeter section passes through the exhaust port 25 through the exhaust duct 23.
And is released from the louver 31 to the atmosphere via the motor dampers 27 and 30 by the suction force of the exhaust fan 28.

On the other hand, in winter operation, the motor dampers 26 and 29 are opened and the motor dampers 27 and 29 are opened.
30 is closed, and the exhaust fan 28 is operated. As a result, the cool air that has been cooled down by the influence of the outside air in the indoor perimeter and descends is discharged through the exhaust port 2 through the exhaust port 24.
2, the motor damper 26, the exhaust fan 28,
It is fed into the room above the ceiling through the path of the motor damper 29. Then, it is mixed with the air introduced into the ceiling through the exhaust port 20. The mixed air is used for interior air conditioner 3
After being taken into the air conditioning unit 2 and air-conditioned, it is returned to the room through the outlet 21.

Normally, the interior part is usually in a cooling state even in winter, and the cool air from the peri-counter 17 is mixed with the retane air to form the interior air conditioner 3.
If it returns to 2, energy saving of interior air conditioner 32 will be attained.

As described above, according to the embodiment of FIG. 3, an exhaust port is provided on each of the ceiling surface and the peri counter 17, and the exhaust side is switched between the ceiling side and the peri counter by one exhaust fan 28. Switching and effective exhaust heat (exhaust cooling) in the perimeter section both in summer and winter can be achieved with a simple configuration, and construction costs can be reduced. It is also possible to reduce the operating cost of the interior air conditioner.

In the above embodiment, the switching of the exhaust system is performed in accordance with the season (summer / winter). However, the present invention is not limited to this. What is necessary is just to be able to grasp the situation in which the flow of the two occurs ascending / descending. For example, switching may be performed according to a temperature value or a wind direction.

In the above embodiment, the motor damper is used as the damper, and the motor is electrically driven by the control unit (not shown). Manual switching may be performed according to the situation.

Further, the motor damper is generally turned on / off by operating a control panel of a monitoring center. However, a sensor for detecting the temperature inside or outside the room, a sensor for detecting the state of solar radiation, or the like is provided near the window. If the motor damper is controlled to open and close based on the output signal, automation can be achieved, and labor saving and improvement in comfort can be achieved.

[0031]

As described above, according to the first aspect of the present invention, the cool air which is cooled down by the influence of the outside air and descends is exhausted from below the perimeter section, and the warm air which is heated and rises above the perimeter section. It is possible to exhaust the gas from the outside, and it is possible to effectively perform the exhaust heat (exhaust cooling) of the perimeter section. Therefore, the indoor air-conditioning load is reduced, and the air-conditioning operation cost can be reduced. According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, it becomes possible to send cool air exhausted from below the perimeter section to the interior air conditioner in the cooling operation state, Further, the air conditioning load is reduced, and the air conditioning operation cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a system diagram showing a perimeter air-conditioning load reduction system according to the present invention.

FIG. 2 is a cross-sectional view of the configuration of FIG. 1 as viewed from the side.

FIG. 3 is a system diagram showing another embodiment of a perimeter air-conditioning load reduction system according to the present invention.

[Explanation of symbols]

 Reference Signs List 3 peri counter 5 exhaust port 6 exhaust port 7 exhaust duct (first exhaust duct) 8 exhaust duct (second exhaust duct) 9 motor damper 10 motor damper 11 exhaust fan 17 peri counter 20 exhaust port 21 outlet 22 exhaust duct (first 1 exhaust duct) 23 exhaust duct (second exhaust duct) 24 exhaust port 25 exhaust port 26 motor damper 27 motor damper 28 exhaust fan 29 motor damper 30 motor damper 32 interior air conditioner

Claims (2)

(57) [Claims] 1. A first exhaust duct disposed in a peri-counter so as to communicate with a plurality of exhaust ports provided on an upper surface of the peri-counter, and a first exhaust duct provided on a ceiling surface immediately above the peri-counter. A second duct disposed in the ceiling portion in communication with the plurality of exhaust ports, and a plurality of dampers for selectively communicating between the first exhaust duct or the second exhaust duct and the outside. A perimeter air-conditioning load reduction system, comprising: an exhaust fan for forcibly exhausting air from the damper to the outside. 2. The perimeter air-conditioning load reduction system according to claim 1, wherein a plurality of air outlets and air outlets provided on a ceiling surface of the interior part, and an outdoor or ceiling space provided downstream of the exhaust fan. A damper for selectively communicating the first exhaust duct and the second exhaust duct with respect to a plurality of air outlets provided in the ceiling surface, taking in air in the space behind the ceiling, and supplying conditioned air to the ceiling surface Perimeter air-conditioning load reduction system, which is equipped with an interior air-conditioner that blows out of air.