JP2886456B2 - Smoke exhaust equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smoke exhaust system for exhausting smoke without using a dedicated smoke exhaust duct in a building requiring mechanical smoke exhaust.

[0002]

2. Description of the Related Art Conventionally, a building is generally provided with an air conditioning system for cooling and heating the inside of the building, and an air conditioning duct is laid behind the ceiling or the like. Also, depending on the building,
Smoke exhaust ducts will also be installed to meet the Building Standard Law and the Fire Service Law. Conventionally, when it is necessary to provide both an air conditioning duct (supply duct and a urethane duct) and a smoke exhaust duct, each is separately installed.

[0003]

As described above, when both the air-conditioning duct and the smoke exhaust duct are installed, the amount of ducts in the ceiling becomes large, and a down ceiling is required to fit the ceiling, or the floor height is high. There was a case. Further, even when the urethane duct is stopped by adopting the urethane chamber method, the supply duct and the smoke exhaust duct are necessary, and therefore, it is inevitable that the duct work in the ceiling becomes complicated.

[0004] It is an object of the present invention to provide a smoke exhaust system capable of reducing the amount of ducts, facilitating installation in a ceiling, and reducing the amount of duct work.

[0005]

To achieve the above object, the present invention blows air supplied from an air conditioner to a living room.
Smoke from the air conditioner and its living room is sent to the main duct
In buildings with smoke exhaust that guides and exhausts outside the building
All the multiple-purpose air vents provided in the room
Communication between the shared duct and the shared duct and the air conditioner
And the air supply duct to be, and the combined duct and flue gas main duct
And a smoke exhaust duct that connects the
And a first damper provided in the middle of the smoke exhaust duct.
And two dampers.

At the time of smoke exhaustion, control is performed to close the first damper and open the second damper.

[0007] Further, the first damper and the second damper can be installed in places other than the air-conditioning machine room.

[0008]

According to the above-mentioned means, the dual-purpose duct installed in a form attached to the living room is provided with a plurality of dual-purpose air- supply systems provided in the living room.
Since it is always in communication with all of the mouths, it normally functions as a duct that leads the air supply from the air conditioner to the living room through all the dual-purpose air vents during normal times, and also shares all the smoke in the living room in the emergency.
It functions as a duct for efficiently discharging outside the building via the ventilation openings . Therefore, air-conditioning and
It can also be used for both smoke and smoke exhaust, reducing the amount of ducts, making it easier to fit in the ceiling, reducing duct construction costs, and increasing the freedom of installation of other ventilation ducts and piping. Can be enhanced. Also, the sleeve construction cost can be reduced.

[0009] As described above, it is usually used for air conditioning.
In order to also use the dual-purpose duct as a smoke exhaust duct , close the first damper disposed on the air conditioner side,
By opening the second damper disposed in the flue gas main duct side, cut off the system with the air conditioner side shared with the duct, and
Constitute a system of the use duct and the flue gas main duct, it is possible to guide the smoke in the room from shared duct to the flue gas main duct.

The first damper and the second damper are desirably an air-conditioning machine room in consideration of construction of a control system, but the air-conditioning machine room is often limited in space. Therefore, if the damper is installed in a place other than the air-conditioning machine room, for example, in an area belonging to a living room such as an office, the damper can be installed in the most efficient place without being restricted.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front layout view showing one embodiment of a smoke exhaust system according to the present invention.

In FIG. 1, an office 1 is taken as an example of a room to be air-conditioned. An air conditioning machine room 2 is secured on the same floor as the office 1, and an air conditioner 3, a supply chamber 4, and a urethane chamber 5 are installed in the air conditioning machine room 2. On the other hand, on the ceiling surface of the office 1, a plurality of urethane ports 6 communicating with the space in the ceiling are attached, and a dual-purpose air vent 7 is provided adjacent thereto.

Each of the dual-purpose air vents 7 is connected to a dual-purpose duct 8 that is mainly used as an air-conditioning duct and is used as a smoke exhaust duct in an emergency, and the other end of the dual-purpose duct 8 is connected to the supply chamber 4. Air supply duct 4 provided
a. A smoke exhaust damper 9 is provided in the middle of the air supply duct 4a. Further, a smoke exhaust duct 11 is connected to the shared duct 8 via a smoke exhaust damper 10, and a smoke exhaust main duct 12 is connected to the smoke exhaust duct 11. Further, on the ceiling of the boundary wall between the office 1 and the air-conditioning machine room 2, a urethane bypass 13 is provided. Further, the air chamber 14 is provided with an outside air duct 14 communicating with the outside air.

In the above configuration, when air is supplied from the air conditioner 3 to the office 1, the air conditioner 3 is operated by closing the smoke exhaust damper 10 and opening the shared duct 8. Thereby, the conditioned air from the air conditioner 3 is supplied to the supply chamber 4,
The air is sent into the office 1 via the smoke exhaust damper 9, the dual-purpose duct 8, and the dual-purpose air vent 7 in order. The room air (return air) is sucked into the ceiling from the air outlet 6, sent to the air-conditioning machine room 2 through the air bypass 13, and mixed with the fresh air that has passed through the outside air duct 14 in the air chamber 5. Return to the air conditioner 3.

Although the above is a normal time, when an emergency occurs in which smoke must be exhausted from the office 1, the sensor operates and a smoke exhaust fan operation signal is output. On the basis of this smoke exhaust fan operation signal, a control device (not shown) controls the operation of the air conditioner 3 to be stopped, the smoke exhaust damper 9 is closed, and the smoke exhaust damper 10 is opened. As a result, office 1
The smoke inside is sent to the shared duct 8 through the shared air vent 7, and further sent to the smoke exhaust main duct 12 through the smoke exhaust damper 10 and the smoke exhaust duct 11. Since the smoke exhaust main duct 12 is provided with a smoke exhaust fan (not shown), the smoke that has reached the smoke exhaust main duct 12 is discharged outside.

As described above, according to the embodiment of FIG. 1, the air conditioning duct can be used as a smoke exhaust duct in an emergency, and the duct in the ceiling can be laid in one system. As a result, the duct in the ceiling can be easily accommodated, and the degree of freedom in installing other ventilation ducts and pipes increases, and the ceiling height can be increased or the floor height can be reduced. In addition, a reduction in the amount of duct work makes it possible to shorten the construction period and reduce costs. Further, when the duct is constructed through the beam, not only the duct construction cost but also the sleeve construction cost can be reduced.

FIG. 2 is a duct system diagram showing another embodiment of the present invention. In this embodiment, the switching between the supply duct and the smoke exhaust duct is performed in the ceiling of the office. With this configuration, the air-conditioning machine room 2 and the smoke exhaust main duct 12 are switched.
It is possible to provide the smoke exhaust damper 9 and the smoke exhaust damper 10 in the most efficient place.

A smoke exhaust damper 9 is provided in the middle of a supply duct 15 connected to the supply chamber 4, and a dual-purpose duct 8 is formed on the ceiling of the office 1 in a U-shape on the outlet side. A smoke exhaust damper 10 is arranged in the middle of a smoke exhaust duct 11 connected to a position opposite to the smoke exhaust damper 9. The smoke exhaust damper 9 and the smoke exhaust damper 10 are provided inside the office 1. Thus, the installation position is less restricted than in the air-conditioning machine room 2, and there is a degree of freedom in installation.

In this case, the switching between the supply duct 15 and the smoke exhaust duct can be performed in the supply chamber. Further, it is also possible to adopt a configuration in which switching is performed by a supply branch duct.

In the above embodiment, a building having the air-conditioning machine room 2 has been described as an example. However, the present invention can be applied to a building having no air-conditioning machine room 2 and having an air conditioner installed in a ceiling or a wall. The invention is applicable.

[0021]

As described above, the present invention provides an air conditioner for supplying air from an air conditioner to a living room through an air conditioning duct, and guides smoke exhausted from the living room to a smoke exhaust main duct to the outside of the building. In a building provided with a smoke exhaust facility for exhausting air, a first damper provided in the middle of an air supply duct provided between the air conditioning duct and the air conditioner, and a first damper for the air conditioning duct and the smoke exhaust main duct Since the smoke exhaust duct disposed in between and the second damper provided in the middle of the smoke exhaust duct are provided, the air conditioning duct can also be used as the smoke exhaust duct, and the amount of duct can be reduced. Will be possible. As a result,
This facilitates installation in the ceiling, reduces duct construction costs, and increases the degree of freedom in installing other ventilation ducts and pipes. Also, the sleeve construction cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front layout view showing one embodiment of a smoke exhaust system according to the present invention.

FIG. 2 is a duct system diagram showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Office 2 Air-conditioning machine room 3 Air-conditioner 4 Supply chamber 4a Air supply duct 5 Retin chamber 6 Retin port 7 Dual-purpose air vent 8 Dual-purpose duct 9 Smoke exhaust damper 10 Smoke exhaust damper 11 Smoke exhaust duct 12 Smoke exhaust main duct 13 Retan Bypass 14 Outside air duct 15 Supply duct

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F24F 7/06 A62B 13/00 E04F 17/02

Claims (3)

(57) [Claims] 1. An air conditioner for blowing air supplied from an air conditioner to a living room.
Smoke from equipment and the living room are led to the smoke main duct
In a building provided with a smoke exhaust system that exhausts air outside the building, it is always connected to all of the multiple air vents provided in the living room.
A shared duct passing therethrough, and an air supply duct communicating the shared duct with the air conditioner
And the communication duct is communicated with the smoke exhaust main duct.
Bei and smoke duct, a first damper provided in the middle of the air supply duct, and a second damper disposed in the middle of the flue gas duct
Smoke exhaust equipment characterized by: 2. The smoke exhaust system according to claim 1, wherein said first damper is closed and said second damper is opened during smoke exhaust. 3. The smoke exhaust system according to claim 1, wherein the first damper and the second damper are installed in a place other than an air-conditioning machine room.