JPH0719559A - Air curtain for living room - Google Patents

Abstract

PURPOSE:To enable air contaminated with smoke or odor and the like to be discharged without being dispersed in a living room. CONSTITUTION:A line flow fan 4 is arranged at a living room ceiling surface 3 in such a manner that it encloses four corners of generating source of bad odor or smoke and the like so as to prevent either bad odor or smoke generated in the living room 1 from being dispersed out of a living room. A slit-like suction port 5 is formed at the ceiling surface 3 along an inner circumferential side of the line flow fan 4. Then, an equal pressure chamber 6 from which air is discharged by a discharging fan 8 is arranged at a rear surface of the ceiling of a space R. A discharged air flow directed downwardly of the line flow fan 4 is of such a degree that its reaching distance does not reach a floor surface. With such an arrangement as above, air in the space R closed by the air curtain is circulated by the line flow fan 4 and is discharged without being dispersed in a room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a living room air curtain which prevents smoke and odor generated in a living room from being diffused throughout the room and is discharged to the outside.

[0002]

2. Description of the Related Art Exhaust gas during cooking in a kitchen of a general household is forcibly discharged out of the room by a ventilation fan provided above the range table. Ventilation inside the living room is also done with a ventilation fan installed on the wall.

[0003]

Therefore, the smoke or smell generated during cooking which is not discharged to the outside air by the ventilation fan through the hood, the smell of cooking in the living room, the smoke of cigarettes in the living room, etc. once enters the room. It is diffused and discharged to the outside together with other air. For this reason, smoke and odors often fill the room even when operating with a ventilation fan installed. Further, in order to prevent this, it is necessary to provide a partition wall or a partition plate in the room, which greatly impairs the appearance of the room.

An object of the present invention is to exhaust polluted air such as smoke and odor without diffusing.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and the odor / smoke generated in the living room is prevented from diffusing to the outside of the living room on the ceiling surface of the living room.
A line flow fan is arranged so as to surround the four circumferences of the source of smoke, etc., and a slit-shaped suction port is formed on the ceiling surface along the inner peripheral side of this line flow fan, and this slit-shaped suction port is provided for exhaust. The gist is that an equal pressure chamber exhausted by a fan is arranged behind the ceiling of the space, and the downward discharge air flow of the line flow fan does not reach the floor surface.

[0006]

[Function] A plurality of line flow fans are installed on or near the ceiling in a predetermined cooking place or smoking place, and a constant pressure chamber for exhausting air is provided in the ceiling surrounded by the line flow fans. Equipped with. As a result, the space having the source of smoke and odor becomes an air-closed space in which the air curtain is vertically provided by the line flow fan. Then, when the air is exhausted to the outside from the constant pressure chamber behind the ceiling by the pressure fan, the air in the space closed by the air curtain is circulated by the line flow fan and exhausted without being diffused into the room.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A room air curtain of the present invention will be described below with reference to the illustrated embodiments. In the figure, reference numeral 1 denotes a living room having a required size and shape, and a ceiling 3 is arranged at a required high position on a floor 2 of the living room 1. Then, in a position where cooking or relaxing is performed in this living room, for example, in the central position of the living room, a space R for arranging a table and a reception set for cooking hot pot, etc.
To form.

The line flow fans 4 and 4 are attached to the ceiling 3 so as to surround the air-closed space R to be formed, and the air intake 41 of the line flow fan 4 is closed. The air outlet 42 is provided so as to suck the air in the outside living room and the outlet 42 is provided downward.

Further, a slit 5 is formed along the line flow fan 4 on the ceiling surface around the air-closed space R to suck a part of the air circulating in the air-closed space. In addition, an equal pressure chamber 6 is arranged behind the ceiling in which the slit 5 is formed, and the equal pressure chamber 6 is directly connected to the equal pressure chamber 6 or the exhaust duct 7 is provided.
The exhaust fan 8 is used to exhaust the air to the outside.

The line flow fan 4 discharges air from the ceiling surface toward the floor surface in a substantially vertical direction.
This exhaust pressure is set so as to reach a distance of about 1 m from the fan 4, that is, from the ceiling surface (to the extent that it does not reach the floor surface).

Therefore, when the exhaust fan 8 and the line flow fan 4 are driven, the line flow fan 4 is placed in the living room 1.
Space R where the part surrounded by
Is formed. This sucks the air in the ceiling portion outside the space R from the line flow fan 4 and blows it out in the vertical direction. However, this air blowout does not reach the floor surface from the ceiling surface, for example, about 1 m. A circulating air flow is generated at a position above the space R surrounded by the line flow fan 4. However, since the air flow of the air curtain from the line flow fan is about 1 m, the air curtain is cut off below the air flow. However, since the slits 5 on the ceiling surface of the space R are sucked into the constant pressure chamber 6 and exhausted to the outside, a negative pressure is generated in the inner bottom portion of this space, and the inner bottom portion of this space is located below the air curtain. The air at the bottom of the living room, which has a slightly higher pressure, flows into the bottom of the space R, and the space R is air-closed, and the smoke and odors generated in the space R are distributed throughout the living room. It is exhausted to the outside without being diffused.

[0012]

The living room air curtain of the present invention is provided with a line flow fan on the ceiling surface of the living room so that odors or smoke generated in the living room are not spread to the outside of the room so as to surround the four circumferences of the source of odors and smoke. In addition, a slit-shaped suction port is formed on the ceiling along the inner peripheral side of this line flow fan, and this slit-shaped suction port is provided, and an isobaric chamber exhausted by an exhaust fan is placed behind the ceiling of the space. Since it is installed and the downward discharge air flow of the line flow fan is set to the extent that it does not reach the floor surface, odors and smoke generated in the space are not diffused into the room,
Since it is circulated in the space and is sequentially exhausted, there is an advantage that the air in the entire living room is not polluted even if cooking is performed in the living room.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an example of a room air curtain of the present invention.

[Explanation of symbols]

 1 Living room 2 Floor 3 Ceiling 4 Line flow fan 5 Slit 6 Isobaric chamber 7 Duct 8 Exhaust fan R Air-closed space

Claims (1)

[Claims] 1. A line flow fan is provided on a ceiling surface of a living room so as to surround four sources of odors, smoke, etc. so as not to diffuse odors or smoke generated in the living room to the outside of the living room.
A slit-shaped suction port is formed on the ceiling along the inner peripheral side of this line flow fan, and this slit-shaped suction port is provided, and an isobaric chamber exhausted by an exhaust fan is placed behind the ceiling of the space. The air curtain for the living room is characterized in that the reaching distance of the downward discharge air flow of the line flow fan does not reach the floor surface.