JP2826256B2 - Air conditioning and smoke exhaust system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner / smoke exhaust system used for a building having an air conditioner and a smoke exhaust system. The installed air-conditioning suction port can also be used as a smoke exhaust port.

[0002]

2. Description of the Related Art In buildings, not only air conditioning equipment,
When the number of floors and floor area exceeds a predetermined number (three stories or more and 500 m ² or more), smoke emission equipment is required according to the Building Standard Law and the Fire Service Law. FIG. 4 is a plan view of a conventional ceiling provided with air conditioning equipment and smoke exhaust equipment. A plurality of fan coil units or cooling / heating units (air conditioning units) 5 are provided on the ceiling surface 3 partitioned by the smoke exhaust vertical wall 1, and the air conditioning units 5 are arranged at predetermined intervals between columns arranged vertically and horizontally. ing.
A smoke outlet 7 is provided between the air conditioning units 5, and the smoke outlet 7 is provided.
Are generally located on the opposite side of the entrance 9 which is an evacuation exit. FIG. 5 is a cross-sectional view of the air conditioning unit and the smoke outlet. The air conditioning unit 5 is provided with a suction grill 11, and a filter 13 is attached to the suction grill 11. The indoor air sucked from the suction grill 11 is heat-exchanged to a predetermined temperature by a heat exchanger (coil), and is blown back into the room by a blower fan. On the other hand, a smoke exhaust chamber 15 is connected to the smoke exhaust port 7, and the smoke exhaust chamber 15 has a smoke exhaust damper 17 therein. A smoke exhaust duct 19 is connected to the smoke exhaust chamber 15, and air in the smoke exhaust duct 19 is exhausted to the outside by a smoke exhaust fan 21.

In the air-conditioning equipment and the smoke exhaust equipment thus configured, the air-conditioning unit 5 is normally operated, the smoke exhaust damper 17 is closed, and the smoke exhaust fan 21 is stopped. On the other hand, in the event of a fire,
7 is opened (see FIG. 6), and the smoke exhaust fan 21 is opened.
Is operated, and the smoke in the room is exhausted from the smoke outlet 7, the smoke exhaust chamber 15,
It is discharged outside by the smoke exhaust duct 19. Some of the smoke exhaust equipment does not have the above-described smoke exhaust duct 19. In such equipment, the entire interior of the ceiling becomes a smoke exhaust chamber, and the smoke in the chamber is discharged outside by a smoke exhaust fan provided alone. Will be discharged to

[0004]

However, the conventional air-conditioning equipment and the smoke exhaust equipment are provided separately from each other, and the installation position of the smoke exhaust equipment is somewhat restricted (the evacuation direction and the smoke exhaust equipment are limited). It is preferable that the ceiling surface is dense due to air conditioning equipment, smoke exhaust equipment, lighting equipment, etc., and the fit and workability were extremely poor. In addition, the fact that the ceiling surface is dense due to these facilities has been an obstacle to easily performing partition changes and the like, and has also been an obstacle to unifying designs. The present invention has been made in view of the above circumstances, and air conditioning equipment, air conditioning equipment that can share the terminal of the smoke exhaust equipment.
By providing a smoke exhaust system and reducing the space occupied by the ceiling (saving space), labor saving of ceiling surface processing, simplification of construction, improvement of workability, and improvement of design easiness are achieved. With the goal.

[0005]

To achieve the above object, the present invention comprises a suction port opened on a ceiling surface, a hollow air-conditioning chamber provided above the suction port, and the air-conditioning chamber. An air conditioning unit for exchanging heat from the suction port on the suction port side and returning the air to the air outlet; a smoke exhaust chamber provided above the air conditioning unit in the air conditioning chamber; An air-conditioning / smoke-exhaust device comprising an external exhaust means communicating with the air-conditioning chamber, the air-conditioning chamber further includes a smoke-exhaust damper for opening and closing the air-conditioning chamber and the smoke-exhaust chamber, and the smoke-exhaust damper is normally closed. When the communication between the air conditioning chamber and the smoke exhaust chamber is closed and the room air sucked from the suction port is exhausted from the ceiling surface to the room by the air conditioning unit without passing through the external exhaust means. In particular, in the event of a fire, the smoke exhaust damper is opened, the air conditioning chamber communicates with the smoke exhaust chamber, and the room air sucked from the suction port is returned to the room by the air conditioning unit via the external exhaust means without returning to the room. It is characterized by being discharged outside the room.

[0006]

In normal operation, the smoke exhaust damper is closed, and the air blower of the air conditioning unit is operated, so that the room air is sucked in from the air inlet of the air conditioning unit and passes through the air conditioning chamber and the heat exchanger. Is blown into the room again to perform air conditioning in the room. In the event of a fire, the blower of the air conditioning unit is stopped, the smoke exhaust damper is opened to connect the smoke exhaust chamber to the air conditioning chamber, and the external exhaust means is operated to draw indoor air containing smoke into the air conditioning unit. The air is efficiently taken into the air conditioning chamber from the mouth, passes through the smoke exhaust damper and the smoke exhaust chamber, and is exhausted to the outside by the external exhaust means. Therefore, the air intake unit and the smoke exhaust port of the air conditioning unit are shared so that the air intake unit and the smoke exhaust port become one, so that ceiling processing for separately providing a smoke exhaust port is not required.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of the air-conditioning / smoke exhaust common device of the present invention. An air conditioning unit 31 is provided in the ceiling, and the lower surface of the air conditioning unit 31 is exposed to the ceiling. A suction grill (suction port) 33 is provided on the lower surface of the air conditioning unit 31, and a filter 35 is attached to the suction grill 33. An air conditioning chamber 37 is provided above the suction grill 33, and room air flows into the air conditioning chamber 37 from the suction grill 33. One end of the suction grill 33 is rotatably supported by a hinge or the like (not shown), and the other end is opened and closed from the lower surface of the air conditioning unit 31. That is, when the suction grill 33 is opened, the air conditioning chamber 37 is opened.
Is open over the entire surface.

A heat exchanger (coil) 39 and a blower 41 are provided on both sides of the air conditioning chamber 37, respectively.
The outlet 1 is connected to the outlet 43 of the air conditioning unit 31. Therefore, the room air sucked from the suction grill 33 is taken into the air-conditioning chamber 37,
9 and is blown into the room again by the blower 41. By the way, a smoke exhaust chamber 45 is connected to the upper part of the air conditioning chamber 37, and the inside of the smoke exhaust chamber 45 communicates with the inside of the air conditioning chamber 37. Above the smoke exhaust chamber 45, a smoke exhaust duct 4 serving as an external exhaust means is provided.
7 is connected to one end, and the other end of the smoke exhaust duct 47 is provided with a smoke exhaust fan 49 as an external exhaust means. A smoke exhaust damper 51 is provided inside the smoke exhaust chamber 45. The smoke exhaust damper 51 blocks the air conditioning chamber 37 side and the smoke exhaust duct 47 side in the smoke exhaust chamber 45, and can be freely opened and closed. I have. That is, when the smoke exhaust damper 51 is opened and the smoke exhaust fan 49 is operated, the air in the air conditioning chamber 37 is exhausted to the outside via the smoke exhaust duct 47. Air conditioning chamber 37,
Smoke exhaust chamber 45, smoke exhaust duct 47, smoke exhaust fan 49,
An air conditioning / smoke exhaust system 53 according to the present embodiment is configured with the smoke exhaust damper 51 as a main member.

The operation of the air-conditioning / smoke exhaustion device 53 thus configured will be described. FIG. 2 is a cross-sectional view for explaining an operation state of the air-conditioning / smoke exhaustion common device at the time of smoke exhaustion. In normal times, as shown in FIG. 1, the smoke exhaust damper 51 is closed, the smoke exhaust fan 49 is stopped, and the blower 41 is operated, whereby the room air is sucked from the intake grill 33 and the air conditioning chamber 37 is opened. After passing through, heat is exchanged by the coil 39 and blown back into the room by the blower 41. On the other hand, when a fire occurs, the blower 41 is stopped, and as shown in FIG. 2, the suction grill 33 is opened together with the filter 35, and the lower surface of the air-conditioning chamber 37 is fully opened, so that the area for sucking smoke is maximized. At the same time, the smoke exhaust damper 51 is opened, the smoke exhaust fan 49 is operated, and the smoke in the room is discharged from the lower opening of the air conditioning chamber 37 to the smoke exhaust chamber 45.
It flows into the inside and is exhausted to the outside through the smoke exhaust duct 47.

FIG. 3 is a plan view of a ceiling provided with a common air-conditioning / smoke exhaust device. According to the air-conditioning and smoke exhausting device 53 described above, since the air-conditioning inlets evenly arranged in the room can be used as smoke exhausting ports, it is necessary to separately provide the smoke exhausting ports separately on the ceiling surface. As a result, the area occupied by the ceiling can be reduced (space saving). In addition, since any air-conditioning suction port can be used as a smoke exhaust port, the smoke exhaust port can be easily provided in a direction opposite to the evacuation direction, and safety can be easily ensured.

In the air-conditioning / smoke exhaust system 53 according to the above-described embodiment, the intake grill 33 and the filter 35 are integrated, and the smoke grill 33 can be opened when smoke is exhausted. However, the present invention is not limited to this. For example, if the filter 35 is provided directly on the front surface of each coil 39, the suction grill 33 can be fixed. Further, the air-conditioning / smoke exhaust system 53 according to the above-described embodiment is connected to the smoke exhaust duct 47 and the smoke exhaust fan 49 as external exhaust means. In this case, the smoke exhaust duct 47 may not be connected, and the smoke exhaust chamber 45 may be directly opened into the ceiling smoke exhaust chamber which is an external exhaust means. In other words, the air-conditioning / smoke exhaust system according to the present invention may be either a device that connects the smoke exhaust duct 47 to the smoke exhaust chamber 45 or a device that directly opens the smoke exhaust chamber 45 in the ceiling exhaust chamber.

[0012]

As described above in detail, according to the air-conditioning / smoke exhaust system according to the present invention, the smoke exhaust port shared with the suction port of the air-conditioning unit on the ceiling surface and the smoke exhaust port provided above the same are provided. The air conditioner has a hollow air-conditioning chamber and a smoke exhaust damper that opens and closes the air-conditioning unit and the smoke exhaust chamber in the air-conditioning chamber. In the event of a fire, the blower of the air-conditioning unit is stopped and the smoke exhaust damper opens. The air-conditioning chamber and the smoke exhaust chamber are communicated with each other, and the external exhaust means is operated so that indoor air containing smoke is efficiently taken into the air-conditioning chamber from the smoke exhaust port shared with the suction port, and the exhaust gas is discharged. After passing through the smoke damper and the smoke exhaust chamber, the air can be exhausted to the outside by the external exhaust means. In addition, the air conditioning equipment and smoke exhaust equipment terminals are shared, reducing the occupied area of the ceiling for equipment construction, saving labor on ceiling surface processing, simplifying construction, improving workability, and designing. Improved ease can be achieved. Furthermore, even when a partition or section change occurs, the suction port and the smoke exhaust port are shared, so there is no need to newly relocate or add a smoke exhaust port, and the smoke exhaust chamber at the desired position can be externally vented. Only need to be communicated with, and it is possible to easily cope with partition / partition changes.
Furthermore, in the ceiling exhaust chamber system, the smoke exhaust chamber only needs to be opened in the ceiling, so that the air-conditioning and smoke exhausting device can be placed in the ceiling with good air-conditioning and smoke exhaust efficiency. It is easy to respond to new installations and changes, and can be highly flexible.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a shared air-conditioning / smoke exhaust device according to the present invention.

FIG. 2 is a cross-sectional view illustrating an operation state of the shared air-conditioning / smoke exhaust device during smoke exhaustion.

FIG. 3 is a plan view of a ceiling provided with a shared air conditioning / smoke exhaust device.

FIG. 4 is a plan view of a conventional ceiling provided with air conditioning equipment and smoke exhaust equipment.

FIG. 5 is a sectional view of an air conditioning unit and a smoke outlet.

FIG. 6 is a cross-sectional view illustrating an operation state of the smoke exhaust facility during smoke exhaust.

[Explanation of symbols]

 31 air-conditioning unit 33 suction port 37 air-conditioning chamber 39 heat exchanger 45 smoke exhaust chamber 47, 49 external exhaust means 51 smoke exhaust damper 53 air-conditioning and smoke exhaust common device

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kenji Aoya 2-7-10 Makino Honmachi, Hirakata City, Osaka Prefecture (56) References Hikaru 2-112295 (JP, U) Hikami 50-96357 (JP, U) Japanese Utility Model 1-82438 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) F24F 7/06

Claims (1)

(57) [Claims] 1. A suction port opened on a ceiling surface, a hollow air-conditioning chamber provided above the suction port, and air exchange from the suction port on the suction port side of the air-conditioning chamber by heat exchange and blowing. An air conditioning / smoke exhaust system comprising an air conditioning unit returning to an outlet, a smoke exhaust chamber provided in the air conditioning chamber above the air conditioning unit, and an external exhaust unit communicating with the smoke exhaust chamber. The air conditioning chamber further includes a smoke exhaust damper that opens and closes the air conditioning chamber and the smoke exhaust chamber. Normally, the smoke exhaust damper is closed to close communication between the air conditioning chamber and the smoke exhaust chamber, and from the suction port. The sucked indoor air is discharged from the ceiling surface into the room by the air conditioning unit without passing through the external exhaust means, and at the time of fire, the smoke exhaust damper is opened to open the air conditioning chamber. Air-conditioning / smoke-exhaust, wherein room air sucked from the inlet through communication between the air-conditioning unit and the smoke-exhaust chamber is discharged outside through the external exhaust means without returning to the room by the air-conditioning unit. apparatus.