JPH0828918A - Reduction system for perimeter air conditioning load - Google Patents

Abstract

PURPOSE:To ensure effectual heat exhaustion (cold exhaustion) of a perimeter part irrespective of the season. CONSTITUTION:A pericounter 3 is arranged on a floor surface in a room along a glass window, and a plurality of exhaust ports 5 are provided in the surface of the perimeter, and further an exhaust duct 7 communicating with the exhaust ports 5 is located in the pericounter 3. In contrast, an exhaust duct 8a communicating with an exhaust port 6a provided in the vicinity of a ceiling surface is provided and directed to face the pericounter 3, and a motor damper 10a is provided between the exhaust duct 8a and an exhaust fan 11 being an air exhaust driving source, and further a motor damper 9a is provided between the exhaust duct 7 and an exhaust duct 11a. Heat exhaustion (cold exhaustion) is effectually achieved by selectively changing over the above members according to the season.

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 reducing system for air conditioning equipment for reducing an air conditioning load on a glass surface (perimeter) in an air conditioning target.

[0002]

2. Description of the Related Art In the air conditioning equipment, solar radiation has a great influence on the air conditioning load (cooling load).
The sunlight penetrates like window glass and warms the indoor walls and equipment (desks, chairs, etc.), which becomes the cooling load. The cooling load due to this solar radiation changes depending on conditions such as season, latitude, longitude, and the state of air pollution (city or mountain area). Further, if there is something that blocks the solar radiation such as the transmittance of the glass or the window such as a blind or an awning, the shielding reduces the cooling load.

Conventionally, as one means for reducing the air conditioning load on the perimeter, there is a method in which a blow port is provided in the ceiling of the perimeter and exhaust heat is exhausted from this blow port.

[0004]

However, as described above, the means for exhausting heat by providing the blow-in port in the ceiling causes the rising airflow warmed in the perimeter portion in the summer, so that the ceiling surface is heated. It makes sense to exhaust at. On the contrary, in winter, the air in the perimeter portion is cooled, so that the air flow is downward. Therefore, when exhausting air on the ceiling surface, the flow is reversed, and it is difficult to obtain the effect of exhaust heat (exhaust heat).

An object of the present invention is to provide a perimeter air-conditioning load reduction system capable of effectively performing exhaust heat (exhaust heat) of a perimeter portion regardless of the season or the like.

[0006]

In order to achieve the above-mentioned object, the present invention provides a peri-counter which is arranged on a floor surface in a room along a perimeter portion and is provided with a plurality of exhaust ports on the surface. And a first exhaust duct which is arranged in the peri-counter and communicates with each of the exhaust ports, and a plurality of exhaust ports provided in the vicinity of the ceiling surface and communicates with each other in the ceiling part directly above the peri-counter. A second exhaust duct provided, a plurality of dampers for selectively communicating the first and second exhaust ducts with the outdoors according to the situation, and the air from these dampers is forcibly exhausted outdoors. An exhaust fan is provided.

[0007] Then, the situation can be the seasons of summer and winter.

[0008] Further, the above object is to provide a plurality of exhaust ports and air outlets provided on the ceiling surface of each floor and a plurality of exhaust ports provided on the floor surface of the room along the glass window and on the surface. A peri-counter, an exhaust duct arranged in the peri-counter and communicating with each of its exhaust ports, and a damper for selectively communicating the exhaust duct between the outdoors and the space behind the ceiling, An exhaust fan that blows air from this damper to the outside or the above-ceiling space, and an air conditioner that takes in the air in the above-ceiling space and blows out conditioned air from a plurality of outlets provided on the above-mentioned ceiling surface. And is set.

The situation in this case can be defined as the case where the air conditioner is in the cooling operation state.

In this case, further, a second exhaust duct disposed in the ceiling above the lower floor for exhausting indoor air, and a second damper between the exhaust duct and the inlet side of the exhaust fan. And can be provided.

[0011]

According to the above-mentioned means, a specific situation, for example,
The exhaust system can be switched between the ceiling portion and the floor portion in accordance with the season (summer, winter) when the air in the perimeter portion changes such as falling or rising. As a result, exhaust heat (exhaust cooling) can be effectively performed.

Further, according to the above-mentioned other means, the descending air is exhausted from the floor portion, and if this cool air is introduced to the ceiling underside when the air conditioner is in the cooling operation state, the air in the ceiling is separately provided. Mixing is performed with the air exhausted from the exhaust port, and this mixed air is sent to the air conditioner. Therefore, the cooling load on the indoor side can be reduced, and the air conditioning operation cost can be reduced.

Further, by providing an exhaust system for exhausting air from the ceiling on the downstairs side, rising air generated in summer or the like is exhausted in the ceiling and can be discharged outdoors. Therefore, it is possible to effectively exhaust heat in the summer and the like.

[0014]

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. Further, FIG. 2 is a cross-sectional view of the configuration of FIG. 1 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, and here, among a plurality of floors, a floor, (a + 1) floor, (a).
Only the +2) floor is shown (showing a cross section of the room seen from the inner side of the window), and the structure relating to the present invention will be described focusing on the (a + 1) floor.

Each floor of the building 1 is partitioned by a ceiling slab 2, and a peri-counter 3 having a built-in exhaust duct is provided along the window at the window on the floor. At the ceiling, an exhaust duct (window The ceiling finishing material 4 is stretched in a state in which a space capable of accommodating the parallel finishing is provided.
An exhaust port 5 is provided at a required location of the peri-counter 3, and an exhaust port 6a is provided along a window at a required location immediately below the exhaust duct of the ceiling finishing material 4. An exhaust duct 7 (second exhaust duct) is commonly connected to each of the exhaust ports 5, and a motor damper 9 is connected to an end of the exhaust duct 7.

Further, each of the exhaust ports 6 has an exhaust duct 8a.
The (first exhaust duct) is commonly connected, and the motor damper 10a and the exhaust fan 11a are sequentially connected to the ends thereof. The exhaust fan 11a is in communication with an exhaust gallery 12a arranged so as to contact the outside air. Furthermore, the motor damper 9 and the exhaust fan 11a are connected through the ceiling slab 2, and a smoke-sensing damper 13 is installed in the middle of the ceiling slab 2 in accordance with the regulations of the Building Standards Law.

As shown in FIG. 2, a glass window 1 is provided on the outer wall.
4 is installed, and a blind 15 is attached to the interior of the room facing the glass window 14 so as to be vertically movable. The exhaust port 5 and the exhaust ports 6a and 6b are arranged so as to be located on the window side with respect to the blind 15, so that the perimeter portion can be exhausted regardless of the elevation of the blind 15.

Incidentally, here, the exhaust port 6a, the exhaust duct 8a, the motor damper 9a, the motor damper 10a, the exhaust fan 11a, and the exhaust gallery 1 installed on the ceiling of the a-th floor are provided.
2a, the exhaust port 6b, the exhaust duct 8b, the motor damper 9b, and the motor damper 10b are provided for each member that has the same function and connection configuration as those of the member 2a and is disposed on the ceiling of the (a + 1) floor. , The exhaust fan 11b and the exhaust gallery 12b.

In the above structure, first, the air conditioning control in the summer will be described. In this case, the motor damper 9
"a" and "9b" are closed and motor dampers 10a, 1
0b is made "open", and the exhaust fans 11a and 11b are operated. As a result, the exhaust from the floor of each floor is stopped,
Exhaust is performed from the ceiling of each floor.

That is, taking the exhaust on the (a + 1) th floor as an example, the warmed air in the room on the (a + 1) th floor rises and is sucked into the exhaust duct 8b through the exhaust port 6b on the ceiling, and passes through the motor damper 10b. , Exhaust fan 11b
Is discharged to the atmosphere through the exhaust gallery 12b. In this way, in the summer, exhaust air is emitted from the ceiling part of the room of the user's room.

Next, in winter, the motor damper 9
"a" and "9b" are opened, and motor dampers 10a, 1
0b is closed and the exhaust fans 11a and 11b are operated. As a result, the exhaust air from each floor is exhausted from the floor, and the exhaust from the ceiling is stopped. In this case as well, taking the exhaust on the (a + 1) th floor as an example, the air in the perimeter portion of the room on the (a + 1) th floor is cooled and descends, and the exhaust duct 7 is passed through the exhaust port 5 provided in the pericounter 3.
Is sucked into. The exhaust duct 7 has a motor damper 9a,
Since the exhaust fan 11a communicates with the smoke-sensing damper 13a, it is discharged to the atmosphere through the exhaust gallery 12a by the suction force of the exhaust fan 11a. In this way, in the winter, exhaust is performed from the floor of the own room.

As described above, in the embodiment shown in FIG. 1, attention is paid to the fact that the air flow direction on the indoor side (inside) of the glass window 14 reverses depending on the season, and the exhaust system is changed according to the flow direction. By switching to either the peri-counter 3 side or the ceiling side so that the exhaust flow is formed in the same direction as the air flow, it is possible to efficiently exhaust heat (cooling).

[Embodiment 2] FIG. 3 is a system diagram showing another embodiment of the perimeter air conditioning load reducing system according to the present invention. A peri-counter 17 is installed along the window on the upper floor of the building 16. In addition, the ceiling finishing material 1 on the ceiling of the lower floor.
8 is attached, and a ceiling finishing material 19 is attached to the ceiling portion of the upper floor. The ceiling finishing material 19 is provided with a plurality of exhaust ports 20 and a plurality of outlets 21. Further, an exhaust duct 22 is provided in the peri-counter 17, and an exhaust duct 23 (second exhaust duct) is provided on the back side of the ceiling finishing material 18 along the window side. 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 communicating with the exhaust duct 23 are provided on the surface of the ceiling finishing material 18.

A motor damper 2 is provided at the end of the exhaust duct 22.
6 (second damper) is connected to the exhaust duct 23.
A motor damper 27 is connected to the end of the. An exhaust fan 28 is connected to each of the motor dampers 26, 27, and motor dampers 29, 30 are connected in parallel to the exhaust fan 28. The output side of the motor damper 29 communicates with the ceiling above the upper floor, and the motor damper 30 communicates with the gallery 31 provided in the outer wall. In addition, 33 is a standing duct space provided so as to connect the floor portion and the ceiling portion, and the motor damper 29 is installed in this space.

Further, an interior air conditioner 32 is installed outdoors. The interior air conditioner 32 air-conditions the air taken in from the ceiling above the upper floor and discharges the conditioned air to the room through the air outlet 21. Although the peri-counter 17 provided on the lower floor and the exhaust duct corresponding thereto are also provided on the upper floor, they are not shown in FIG.

In the summer operation in this embodiment, the motor dampers 27 and 30 are opened and the motor damper 2 is operated.
6 and 29 are closed and the exhaust fan 28 is operated.
As a result, the rising air on the lower floor is taken into the exhaust duct 23 through the exhaust port 25, and is discharged 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, during the operation in winter, the motor dampers 26, 29 are set to "open" and the motor dampers 27, 29 are opened.
30 is “closed” and the exhaust fan 28 is operated. As a result, the descending air generated in the perimeter portion of the room is taken into the exhaust duct 22 through the exhaust port 24, sent to the ceiling of the room through the path of the motor damper 26, the exhaust fan 28, and the motor damper 29, and passes through the exhaust port 20 to the ceiling. It is mixed with the air introduced to the back. The mixed air is taken into the interior air conditioner 32, air-conditioned, and then returned to the room through the air outlet 21.

Normally, most of the room is in a cooling state in the winter season, and if the cool air from the peri-counter side is mixed with the RETAN air and returned to the interior air conditioner 32, energy saving of the interior air conditioner 32 can be achieved. It will be possible. In addition, in the case of the embodiment of FIG. 3, the exhaust amount of the upper floor in the winter is reduced. Therefore, it is desirable to use an inverter or the like in the control unit to increase the air volume of the exhaust fan 34.

As described above, according to the embodiment shown in FIG. 3, the suction surface is provided on each of the ceiling surface and the peri-counter, and the suction side is switched by one exhaust fan. (Cooling), the structure is simplified, and the construction cost can be reduced. Also, the operating cost can be reduced.

In the above embodiment, the exhaust system is switched according to the season (summer / winter), but the present invention is not limited to this, and the air can be placed inside the glass window regardless of the season. It suffices to be able to understand the situation in which there are two rises / falls in the flow of. For example, you may make it switch according to a temperature value and a wind direction.

In the above embodiment, a motor damper is used as a damper and is electrically driven by a control unit (not shown). However, a manual damper is used to detect the temperature inside and outside the room to detect the season and the like. You may make it switch manually according to a situation.

Further, the motor damper is generally turned on / off by operating the control panel of the monitoring center. However, a sensor for detecting indoor / outdoor temperature or the like, or a sensor for detecting the solar radiation state is provided near the window. If the motor damper is installed in the same place and the opening and closing of the motor damper is controlled based on the output signal of the motor damper, automation can be achieved and labor saving and comfort can be improved.

[0035]

As is apparent from the above, according to the present invention, a peri-counter is provided on a floor surface in a room along a glass window and a plurality of exhaust ports are provided on the surface, and this peri-counter is provided. A first exhaust duct, which is disposed in the counter and communicates with each of the exhaust ports, and a plurality of exhaust ports provided in the vicinity of the ceiling surface, are disposed in the ceiling portion directly above the peri-counter. A second exhaust duct, a plurality of dampers for selectively communicating the first and second exhaust ducts with the outdoors according to circumstances, and an exhaust fan for forcibly exhausting air from these dampers to the outdoors Since it is provided, the exhaust heat (exhaust cooling) can be effectively performed. Also,
A plurality of exhaust ports and outlets provided on the ceiling surface of each floor,
A peri-counter provided along the glass window on the floor of the room and provided with a plurality of exhaust ports on the surface, and an exhaust duct disposed in the peri-counter and communicating with each of the exhaust ports A damper that selectively communicates the exhaust duct between the outdoors and the space behind the ceiling; an exhaust fan that blows air from the damper to the outdoors or the space above the ceiling; After the air is taken in, the air-conditioned air is blown out from the plurality of outlets provided on the ceiling surface, so that the cooling load on the indoor side can be reduced and the air-conditioning operating cost can be reduced. it can.

[Brief description of 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 viewed from a side direction.

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

[Explanation of symbols]

 1 Building 2 Ceiling Slab 3 Peri-counter 4 Ceiling Finishing Material 5 Exhaust Port 6 Exhaust Port 7 Exhaust Ducts 8a, 8b Exhaust Ducts 9a, 9b Motor Damper 10a. 10b Motor damper 11a, 11b Exhaust fan 12a, 12b Exhaust louver 13 Smoke-sensing damper 14 Glass window 15 Blind 16 Building 17 Peri-counter 18 Ceiling finishing material 19 Ceiling finishing material 20 Exhaust port 21 Air outlet 22 Exhaust duct 23 Exhaust duct 24 Exhaust outlet 25 exhaust port 26 motor damper 27 motor damper 28 exhaust fan 29 motor damper 30 motor damper 31 galleries 32 interior air conditioner 33 vertical duct space

Claims (5)

[Claims] 1. A peri-counter disposed along a perimeter portion on a floor surface in a room and provided with a plurality of exhaust ports on the surface, and each of the exhaust ports disposed in the peri-counter and each of the exhaust ports. A first exhaust duct communicating with the first exhaust duct; and a second exhaust duct provided in the ceiling portion directly above the peri-counter so as to communicate with a plurality of exhaust ports provided near the ceiling surface,
A perimeter comprising: a plurality of dampers for selectively communicating the first and second exhaust ducts with the outdoors according to circumstances; and an exhaust fan for forcibly exhausting air from the dampers to the outdoors. Air conditioning load reduction system. 2. The perimeter air conditioning load reduction system according to claim 1, wherein the situation is a season of summer and winter. 3. A plurality of exhaust ports and air outlets provided on the ceiling surface of each floor, and a peri-counter provided on the floor surface of the room along the glass window and having a plurality of exhaust ports on the surface. An exhaust duct disposed in the peri-counter and communicating with each of the exhaust ports, and a damper selectively communicating the exhaust duct with the space between the outdoors and the space behind the ceiling depending on the situation. An exhaust fan that blows air from this damper to the outside or the above-ceiling space, and an air conditioner that takes in the air in the above-ceiling space and blows out conditioned air from a plurality of outlets provided on the above-mentioned ceiling surface. And a perimeter air conditioning load reduction system. 4. The perimeter air conditioning load reduction system according to claim 3, wherein the condition is a case where the air conditioner is in a cooling operation state. 5. A second exhaust duct disposed inside the ceiling of the lower floor for exhausting indoor air, and a second damper provided between the exhaust duct and the inlet side of the exhaust fan. The air conditioning load reduction system according to claim 3, wherein