JPH0670502B2 - Return air, exhaust, and smoke exhaust device in the room - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention promptly removes harmful smoke and indoor smoke and odor at the time of a building fire and automatically receives fresh air from the outside to cause an accident. The present invention relates to a so-called indoor return air, exhaust, and smoke exhaust device, which is intended to prevent the generation of the air.

[Conventional technology]

Conventionally, various mechanical devices have been developed as a return air / exhaust mechanism in a room, but most of these are mainly intended to simply return the air in the room to the return air. Therefore, in the event of a building fire, it was not possible to exhibit any effective and appropriate function such as eliminating harmful smoke.

[Problems to be Solved by the Invention]

The present invention is used as an indoor cold / warm air reducing device during an emergency as described above, and in an emergency, it removes harmful gas, harmful smoke, etc. to the pedestal and simultaneously takes in fresh air of the outside air to minimize accidents. To provide a return air, exhaust, and smoke exhaust device whose main purpose is to try.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a return air port, an air supply port,
A U-shaped blower passage is formed by communicating the above-mentioned respective openings inside a machine body provided with openings such as an exhaust port and an outside air intake port, and a return air / exhaust blower and an air supply blower are provided in the blower passage. In an air conditioner in which various mechanisms such as a filter, a heat exchange coil, and an eliminator are respectively arranged, the dampers A, B, and C are interlockingly interlocked with the exhaust port, the outside air intake port, and the ventilation passage. The damper A and the damper B are connected to each other and connected to a detector installed in the room. When the detector detects the smoke, the damper B is completely closed and the damper A is completely opened to exhaust all the harmful smoke generated in the room. The feature is that it is configured to discharge.

[Action]

In the above, for example, in the event of a fire or the like, the detector is activated and the damper A is automatically opened, so that all the harmful smoke that can fill the room is discharged directly from the return air outlet from the exhaust outlet, and at the same time, the damper is released. It is possible that the C side is opened and only the required amount of outside air can be supplied to the room.

〔Example〕

An air return port (2) and an air supply port (3) from the room are provided on the upper part of the machine casing (1), and an exhaust port (4) and an outside air intake port (5) are provided on the side, and the return air is provided. The air blower (6) and the same electric motor (6 ') are installed inside the air inlet (2), while the air blower (7) and the same electric motor (7') are installed inside the air inlet (3). Then, a substantially U-shaped air passage (8) is formed in the machine, and a pre-filter (9), a main filter (10), a heat exchange coil (11) are formed in the air passage (8).
Various mechanisms such as an eliminator (12), a reheat electric heater or a hot water coil (13), and a humidifier (14) are arranged.

The present invention has the above-mentioned mechanism, and further, the damper A is connected to the exhaust port (4) and the damper B is connected to the air passage (8) so that the damper B can be opened and closed. Install each intake damper C. Further, the dampers A, B and C are linked to a smoke amount fire detector (15) installed indoors, an automatic control device and the like, and are automatically opened / closed by a motor operation.

By the way, in normal time, the damper C is opened, and the outside air from the outside air intake (5) is cooled and warmed by the heat exchange coil (11) to an appropriate temperature, and the air is supplied from the air supply port (3). Clean air is always supplied to the room. Further, at the same time as the reception of the outdoor air, the contaminated air on the indoor side opens the damper A,
When the damper B is closed, it is discharged to the outside from the exhaust port (4) through the return air port (2). In this case, the damper B is released.
Is not a completely closed circuit but a semi-open circuit body, and a part of the released indoor air is again returned to the blower passage (8) to save heat exchange energy. In such a state, the detector (15) is actuated for some reason to detect the occurrence of an abnormal condition in the room, and at the same time, the damper B side is completely closed and the damper A side is completely opened, and the return air blower ( 6) rotates at high speed to rapidly exhaust all the harmful smoke in the room through the exhaust port (4).

Further, at the same time as the above operation, the fresh air outside the room may flow out into the room through the air supply port (3) to supply oxygen to eliminate the harm caused by carbon dioxide gas.

It is needless to say that the supply / exhaust air amount can be arbitrarily obtained by adjusting the opening / closing of the dampers A and C and by adjusting the strength of the blower.

In the figure, reference numeral (16) indicates a control valve, (17) indicates a drain pan, and vibration isolation springs (18) and (19) are attached to the blowers (6) and (7), respectively.

〔The invention's effect〕

As described above, according to the present invention, by opening and closing the dampers A, B, and C, the fresh air outside the room is always supplied and distributed at the optimum temperature inside the room, and the contaminated air is exhausted to the outside at the same time. It quickly discharges all the harmful smoke in the room to the outside and at the same time supplies only the necessary amount of fresh air in the room to the room, which can completely eliminate accidents due to oxygen deficiency and harmful smoke when a building fire occurs. For disaster prevention, etc.
It is a very socially beneficial invention.

[Brief description of drawings]

The drawing is a front view schematically showing the internal mechanism of the return air, exhaust gas, and smoke exhaust apparatus according to the present invention. Explanation of symbols (2) ... Return air port, (3) ... Air supply port, (4) ... Exhaust port, (5) ... Outside air intake port, (8) ... Blower passage, (1
1) …… Heat exchange coil A, B, C damper

Claims (1)

[Claims] 1. A U-shaped ventilation passage is formed by connecting the above-mentioned respective openings to the inside of a machine body in which a return air inlet, an air supply inlet, an exhaust outlet, an outside air intake, etc. are provided. A blower for return air and exhaust, a blower for air supply and a filter, a heat exchange coil,
In an air conditioner in which various mechanisms such as an eliminator are arranged respectively, dampers A, B and C are openably and closably interlockedly connected to the exhaust port, the outside air intake port and the air passage, and the damper A and The damper B is connected to a detector installed indoors, and the damper B is activated when the detector emits smoke.
Is completely closed and the damper A is completely opened to exhaust and discharge all the harmful smoke in the room.