JP2880611B2 - How to blow and suck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blowing and suction method suitable for air conditioning and ventilation in a room, particularly in a large space such as an atrium.

[0002]

2. Description of the Related Art As an air conditioning and ventilation system for a large space, for example, a nozzle type or a system in which air is supplied as a jet by a slot outlet is known. And
In such a conventional system, when the jet from the outlet or the jet to the suction port is intended to reach a target area, the blowing rate and the suction rate are increased to increase the speed of the jet. Or, there was only a method of providing multiple outlets and suction ports.

[0003]

However, even when such a method is used, the jet velocity of the blow-out or suction is greatly attenuated, so that the jet flow from the blow-out port or the jet flow to the suction port is intended. There was a problem that it was difficult to reach the area and supply and exhaust could not be performed efficiently. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a blowing and suction method capable of efficiently supplying and exhausting indoor air without increasing the amount of air blown or the amount of suction. It is in.

[0004]

According to a first aspect of the present invention, there is provided a method for blowing air from a first portion of a building provided with an air outlet, the first portion being away from the air outlet. The airflow directed toward the second portion located closer to the outlet than the first portion forms an airflow that is convexly curved in a direction of the airflow blown out from the outlet, and is blown out from the outlet by the airflow. And generating an induced airflow along the airflow, and forming the induced airflow at at least two places across the air outlet.

[0005] The second invention relates to a suction method. In a building provided with a suction port, a first portion farther from the suction port is further from the suction port than the first portion. The airflow directed to the distant second portion forms an airflow that is convexly curved in a direction opposite to the direction of the airflow sucked into the suction port, and the airflow generates an induced airflow along the airflow sucked into the suction port. The attraction airflow is formed at at least two places across the suction port.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram of a blowing method according to the present embodiment.
The sectional side view of the wall surface provided with the outlet is shown. Reference numeral 1 denotes a wall surface, and 3 denotes an air outlet opened to the wall surface. A plurality of air outlets 3 are provided at intervals in the horizontal direction. A plurality of sub-outlets 5 (corresponding to the first portion) are arranged at equal intervals in the vertical direction from the outlet 3 at intervals in the horizontal direction. A plurality of sub-suction ports 7 are provided at equal intervals in the vertical direction from the outlet 3 and at a position closer to the outlet 3 than the sub-outlet 5 at intervals in the horizontal direction. (Corresponding to the second portion). The sub-outlet 5 and the sub-inlet 7 are arranged in a zigzag pattern, an air supply duct constituting an air conditioning system is connected to the outlet 3 and the sub-inlet 5, and an exhaust duct is connected to the sub-inlet 7. It is connected.

A guide wall 9 is formed at a position between the sub air outlet 5 and the sub air inlet 7 above and below the air outlet 3 so as to extend linearly in the horizontal direction. The guide wall 9 is formed to bulge in a curved shape in the direction of the airflow A1 blown out from the outlet 3, and in this embodiment, the cross section of the guide wall 9 is:
It is formed in a semicircular shape having a diameter between the sub outlet 5 and the sub inlet 7.

Next, the operation will be described. From the outlet 3 and the sub outlet 5, for example, new air is blown out. The airflow blown out of the sub-outlet 5 is guided by the guide wall 9 by the Coanda effect and is sucked into the sub-suction port 7. Is generated.

Due to the airflow A2, an induced airflow A3 flows from the front of the guide wall 9 toward the wall surface around the outlet 3 and flows from the wall along the airflow of the outlet 3. Then, the induced airflow A3 is added to the airflow A1 from the outlet 3 from above and below, whereby the diffusion of the airflow A1 blown out from the outlet 3 is suppressed and the airflow A1 is supplied to the room without attenuation.

FIG. 2 is an explanatory view of a suction method according to this embodiment, and shows a sectional plan view of a wall surface provided with a suction port. 2
Reference numeral 1 denotes a wall surface, 23 denotes a suction port opened in the wall surface, and a plurality of suction ports 23 are provided at intervals in the horizontal direction.
A plurality of sub outlets 25 (corresponding to the first portion) are arranged in a row at equal intervals in the vertical direction from the inlet 23 at intervals in the horizontal direction. A plurality of sub-suction ports 27 are provided at equal intervals in the vertical direction from the suction port 23 and further away from the suction port 23 than the sub outlet 25 at horizontal intervals. (Corresponding to the second portion). The sub outlet 25 and the sub inlet 2
7 are arranged in a staggered manner, and the suction port 23 and the sub-suction port 27
Is connected to the exhaust duct that makes up the air conditioning system,
An air supply duct is connected to the sub outlet 25.

A guide wall 29 is formed at a location between the sub outlet 25 and the sub inlet 27 above and below the suction port 23 so as to extend linearly in the horizontal direction. The guide wall 29
Is formed to bulge in a curved shape in a direction opposite to the direction of the airflow A1 sucked into the suction port 23. In this embodiment,
The cross section of the guide wall 29 includes a sub-outlet 25 and a sub-inlet 27.
Is formed in a semicircular shape having a diameter between them.

Next, the operation will be described. Sub outlet 25
The airflow blown out of the guide wall 2 by the Coanda effect
9 and is sucked into the sub-suction port 27, whereby an airflow A2 guided from the sub-suction port 27 to the guide wall 29 and reaching the sub-suction port 27 is generated.

The air flow A2 causes the wall surface around the suction port 23 to move toward the sub-suction port 27 along the guide wall 29 and the wall surface around the suction port 23 along the air flow A1 sucked into the suction port 23. An induced airflow A3 toward the location occurs. Then, the induced airflow A3 is the airflow A of the suction port 23.
1 is added from above and below, whereby the diffusion of the airflow A1 toward the suction port 23 is suppressed and the indoor air is sucked without attenuation.

Although the embodiment has been described with respect to the case where the guide walls 9 and 29 are linearly extended in the horizontal direction, the case where the sub-outlets 5 and 25 and the sub-intakes 7 and 27 are arranged vertically. In other words, the guide walls 9, 29 also extend linearly in the vertical direction. It is to be noted that the induced airflow A3 is applied to at least one of the outlet 3 or the inlet
3 may be formed at least at two places. Also,
The guide wall 9 is not limited to the case where the guide wall 9 extends linearly. For example, it may be formed in an annular shape so as to surround the periphery of each of the outlet 3 and the inlet 23. Furthermore, the induced airflow A3 can be generated by appropriately determining the directions and locations of the sub-outlets 5, 25 and the sub-intakes 7, 27. In this case, the guide walls 9, 29 can be omitted. .

[0015]

As is apparent from the above description, according to the present invention, an induced airflow is added to the airflow blown out from the outlet or the airflow sucked into the suction port from two places sandwiching the airflow. With this configuration, it is possible to efficiently supply and exhaust indoor air without increasing the amount of air blown or the amount of suction.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a blowing method according to the present embodiment, and is a cross-sectional side view of a wall surface provided with a blowing port.

FIG. 2 is an explanatory diagram of a suction method according to the present embodiment, and is a cross-sectional plan view of a wall surface provided with a suction port.

[Explanation of symbols]

 1,21 Wall surface 3 Outlet 5,25 Sub-outlet 7,27 Sub-inlet 9,29 Guide wall 23 Inlet A3 Induced airflow

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F24F 13/08

Claims (2)

(57) [Claims] At a location of a building provided with an air outlet, an airflow from a first portion remote from the air outlet toward a second portion located closer to the air outlet than the first portion,
Forming an airflow that curves convexly in the direction of the airflow blown out from the outlet, generating an induced airflow along the airflow blown out from the outlet by the airflow, and sandwiching the induced airflow across the outlet. A blowing method characterized by being formed in at least two places. 2. In a location of a building provided with a suction port, an airflow from a first portion away from the suction port to a second portion further away from the suction port than the first portion,
Forming an airflow that is convexly curved in a direction opposite to the direction of the airflow sucked into the suction port, and generating an induced airflow along the airflow sucked into the suction port by the airflow; A suction method, wherein the suction method is formed at at least two places sandwiching.