JP3014579B2 - Artificial tornado forming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an artificial tornado forming apparatus.
In particular, it is suitable for use in indoor ventilation of buildings, exhaustion of local pollutant gases in factories, production of amusement parks, and the like.

[0002]

2. Description of the Related Art In the industrial field for transporting fluids, particularly gases, so-called artificial tornadoes are often used in which an airflow is formed in a spiral spiral shape so as to improve transport efficiency and has directivity in the direction of a central axis. As an example of an air-conditioning ventilator using an artificial tornado of this type, a device described in Japanese Patent Publication No. 3-50942 will be described with reference to FIG. A plurality of air outlet pipes 5 are vertically provided on the wall surface 3 of the room 1, and the air outlet pipe 5 has a plurality of air outlet holes 7. The air blowing holes 7 are arranged so that the air blowing direction is in the same rotation direction along the inner circumference of the wall surface 3. In addition, a suction port 9 is formed in the center of the ceiling surface, and the suction port 9 sucks air from the air outlet 7. In this air-conditioning ventilator, the air blown out from the air blowing holes 7 forms an air curtain 11 in the same rotation direction, and the air curtain 11 forms a swirling airflow in the room 1 by a wake.
At the same time, the air near the center of the swirling airflow is sucked from the suction port 9 to form an artificial tornado 13 in the room 1, and due to the vortex convergence of the artificial tornado, the contaminated air existing in the room 1 is efficiently used. Was able to be discharged.

[0003] In addition, as an exhaust device using a spiral spiral airflow similar to an artificial tornado, for example, Japanese Patent Laid-Open Publication No.
No. 140 is described with reference to FIG. An exhaust hood 17 is provided above the exhaust target space 15, and an exhaust port 19 is provided at the center of the exhaust hood 17. An air supply chamber 21 is fixed to the outer peripheral side surface of the exhaust hood 17,
On the lower surface of the air supply chamber 21, a large number of jet ports (nozzles) 23 are arranged at regular intervals on the outer periphery centering on the exhaust port 19. The nozzle 23 can freely change the wind direction. In this exhaust device, a plurality of nozzles 23
The spiral airflow (artificial tornado) 25 rising spirally is formed in the exhaust target space 15 by the synergistic action of the swirling airflow formed by the above and the negative pressure from the exhaust port 19, and the exhaust target space is formed by the artificial tornado 25. The contaminated air in 15 was entrained and could be efficiently discharged.

[0004]

However, in a conventional air-conditioning ventilator having a plurality of vertically extending air blow-out pipes 5, the entire apparatus must be configured as a three-dimensional structure, and it is difficult to transfer the apparatus after completion of the apparatus. In addition, there is a disadvantage that the construction cost is increased if the assembly is performed locally. In addition, since the air outlet pipe 5 is hung down in the suction axis direction, it hinders work, reduces workability in the lower space, and when the device is used for staging an amusement park or the like, Since the air blowing pipe 5 is exposed, the effect of forming the artificial tornado is easily recognized, and there is a defect that the mystery is reduced and the effect of the production is reduced by half. On the other hand, the exhaust hood 17
In the conventional exhaust device provided with a plurality of nozzles, a large number of nozzles 23 must be provided on the lower surface of the air supply chamber 21, which increases the member cost, increases the blowout pressure loss, and requires a large blower. there were. Further, since the jet airflows are blown out from a large number of nozzles 23, the jet airflows easily interfere with each other, and the swirling airflows cannot be efficiently formed. The present invention has been made in view of the above circumstances, there is no need to vertically install an air blowing pipe or the like in a lower space, the structure is simple, the blowing pressure loss can be reduced, and the swirling airflow is reduced. An object of the present invention is to provide an artificial tornado forming apparatus that can be formed efficiently, thereby improving transportability, workability, reducing manufacturing costs, and improving the efficiency of forming an artificial tornado.

[0005]

An artificial tornado according to the present invention
In the equipment, it is arranged at each of the four corners of the rectangular plane.
Outlet and the direction of air blowing from the outlet and a predetermined inclination
The air outlets are disposed at four corners of the rectangular plane at an angle.
Along the sides of the rectangular plane,
Fan-shaped impingement plate that forms a planar airflow in a constant rotational direction
And a swirl formed by the planar airflow in the constant rotation direction
A suction port for sucking air near the center of the airflow.
Is adopted.

[0006]

In the artificial tornado forming apparatus having the above structure,
Blows air from the outlets located at the four corners of the rectangular plane.
When the air is blown out, the blown air collides with the fan-shaped collision plate.
You. At this time, the blown air colliding with the collision plate
Is spread out at a wide angle along the plate,
Plane airflow in a constant rotation direction along the side
Is done. Furthermore, due to the planar airflow in the constant rotation direction
Suction air near the center of the swirling airflow that is formed
Thereby, an artificial tornado is formed efficiently.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an artificial tornado forming apparatus according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of an artificial tornado forming apparatus according to the present invention,
FIG. 2 is a plan view of the air outlet, and FIG. 3 is a view taken along line XX of FIG. A suction port 35 is opened in the center of the virtual plane 33 of the artificial tornado formation space 31, and the suction port 35 is connected to the artificial tornado formation space 31 by a suction fan (not shown) via a suction duct 37.
Aspirate the air. A rectangular virtual centered on the suction port 35
The outlets 39 are arranged at the four corners of the plane 33, respectively.
You. From each outlet 39, a fan (not shown)
And the air sent through the outlet duct 41 is even
It is designed to be blown out with a large amount of air. In addition, each of the air outlets 39 has a constant circumferential direction around the suction port 35 and a predetermined inclination direction with respect to the virtual plane 33 (in this embodiment, obliquely downward from the virtual plane 33). It is oriented so that air can be blown out.

Each of the blowout ports 39 is provided with a fan-shaped collision plate 43 with a certain gap, and the collision plate 43 is inclined at a predetermined inclination angle θ (see FIG. 3) with the air blowing direction from the blowout port 39 .
), And is arranged in a posture orthogonal to the virtual plane 33. As shown in FIG. 2, the arc 43a of the collision plate 43
At the edges at both ends sandwiching the partition plate 4 for controlling the range of the blowout flow
5 is bent, and the partition plate 45 restricts the blowing flow in an unnecessary direction. Therefore, the air blown out from the outlet 39 collides with the collision plate 43 and then is blown out along the partition plate 45 as a thin planar airflow (fan-shaped blowout flow). It is. The artificial tornado forming apparatus 4 includes the suction port 35, the air outlet 39, and the collision plate 43 as main members.
7 are configured.

[0009] The artificial tornado forming apparatus 4 configured as described above.
7, the operation of forming an artificial tornado will be described. When air is blown out from the blowout port 39, the blown-out air is
3 and form a collision jet A. This impinging jet A
Is diffused at a wide angle along the collision plate 43 as shown in FIG.
After being separated from the collision plate 43, the fan-shaped blowoff flow B having a small thickness is formed, and each of the virtual planes 33 around the suction port 35 is formed.
It is blown out widely along the side. Therefore, virtual plane 3
3 and a virtual plane 49 parallel to the virtual plane 33, a closed space 51 surrounded by the fan-shaped outlet flow B is formed. In other words, the closed space 51 is surrounded by the fan-shaped blowoff flow B rotating in a certain direction. In the closed space 51, a swirling airflow C in a fixed rotation direction is formed by the fan-shaped blowoff flow B, and the swirling airflow C rotates around the suction port 35 at the center of the virtual plane 33. At the same time, when air near the center of the swirling airflow C is sucked from the suction port 35, the swirling airflow C and the airflow in the direction of the center axis of the swirling due to the negative pressure of the suction port 35 cause the suction port 35 starting from the virtual plane 49. Is formed as an artificial tornado D.

In this artificial tornado forming apparatus 47, a rectangular
Air outlets 39 are arranged at the four corners of the imaginary plane 33
Then, the air blown out from each of the outlets 39 is applied to a fan-shaped collision plate.
43, each side of the virtual plane 33 is
A planar airflow B in a constant rotation direction is formed over a wide range.
To form an artificial tornado as before
Air blowing pipes are installed in the space, and swirling airflow is formed.
Efficiency without having to provide multiple nozzles to achieve
An artificial tornado can be formed well.

[0011]

As described in detail above, the present invention
According to the artificial tornado forming apparatus, the
Air blown out of the blown outlet collide with the fan-shaped collision plate.
The collision causes a constant rotation direction along each side of the rectangular plane.
Is formed by this planar airflow
By sucking the air near the center of the swirling airflow at the suction port,
An artificial tornado can be efficiently formed. This
The device configuration for forming an artificial tornado is simple and small.
Because it can be made compact and lightweight, it can be transported when the equipment is
Workability in the space can be improved. further,
Plane airflow using only the outlets and collision plates provided at the four corners of a rectangular plane
And the outlet is shielded from the outside by the collision plate.
In order to become a form, the action (mechanism) of artificial tornado formation
It becomes very difficult to recognize by appearance. This allows
Reduce the cost of parts and construction of equipment.
And use this device for staging amusement parks, etc.
When you do, enhance the mystery and improve the staging effect
be able to.

[Brief description of the drawings]

FIG. 1 is a schematic structural view showing an embodiment of an artificial tornado forming apparatus according to the present invention.

FIG. 2 is a plan view of an outlet.

FIG. 3 is a view as viewed in the direction of arrows XX in FIG. 2;

FIG. 4 is a perspective view of a conventional air-conditioning ventilation mechanism using an artificial tornado.

FIG. 5 is a side view of a conventional exhaust device using an artificial tornado.

[Explanation of symbols]

33 Virtual plane ( rectangular plane ) 35 Suction port 39 Blow-out port 43 Collision plate 47 Artificial tornado forming device 51 Closed space B Fan-shaped blowout flow (planar airflow) C Swirling airflow D Artificial tornado

────────────────────────────────────────────────── (5) References JP-A-4-68242 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 7/08 F24F 9/00 F24F 13 / 08

Claims (1)

(57) [Claims] 1. A blower arranged at each of four corners of a rectangular plane.
The outlet has a predetermined inclination angle with the air blowing direction from the outlet.
Are arranged at the four corners of the rectangular plane, and blow from the outlet.
Constant rotation along each side of the rectangular plane due to the collision of outgoing air
Fan-shaped impingement plate that forms a planar airflow in one direction, and a swirling airflow formed by the planar airflow in the constant rotation direction
A suction port for sucking air near the center of the tornado.