JPH03279732A - Device for generating tornado - Google Patents

Abstract

PURPOSE:To provide a device for generating tornado in a stable manner by providing a suction port having a suction fan above its central part and controlling directions and quantities of wind at a blowoff port depending on signals from a sensor for directional wind velocity. CONSTITUTION:Rotatable blowoff ducts 1 having a plurality of blowoff ports 2 in a vertical direction are provided and a duct 3 connected to the ducts 1 is disposed at a top position. A suction port 4 having a suction fan 8 near its central point is provided on the duct 3 and a fan 5 which feeds air to the ducts 1 is connected to the duct 3. And sensors 7 are provided on the duct 3 to sense wind velocity having directivity. Signals sensed by the sensors 7 are taken into a control device 6 to control the direction of the ducts 1, the ability of the fan 5 for feeding air and dampers 9 for regulating the quantity of wind per each of the ducts 1. The air is blown off from the ports 2 in a direction tangent to an imaginery cylinder in the center of the duct 3 to form a tornado, which is sucked through the port 4 and discharged to the outside to purify the air.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a tornado generating device that aims to purify the air in a specific space with high efficiency.

[Conventional technology]

As a method of purifying locally generated contaminated air without dispersing it, a tornado is generated from the outlet 2 of the pillar-shaped outlet duct 13 arranged at a location in JP-A-62-2618424 toward the inlet 4 provided at the upper center. It blows air that generates. Arrow 15 indicates the flow of blown air.

[Problem to be solved by the invention]

However, in the conventional technology, the air is blown from the blowout duct 1.
Since the air is uniformly flowed in a predetermined direction from the air outlet 2 of No. 3, if the center of the vortex is shifted due to disturbances such as airflow from air conditioning or drafts, the contaminated air will not be properly discharged. There was a point.

An object of the present invention is to provide a tornado generating device that is stable even under the influence of external disturbances.

[Means to solve problems]

The gist of the present invention is to arrange a rotatable blow-off duct having a plurality of blow-off ports arranged in the vertical direction around the circumference, provide a mechanism for rotating the blow-off duct, and provide a suction fan in the upper center. This tornado generating device is characterized in that it is provided with a suction port having a directional wind speed, a directional wind speed sensor, and a control device that controls the wind direction and volume of the air outlet based on a signal from the sensor. .

[For production]

In the present invention, it is possible to sense the size and direction of disturbances such as airflow from air conditioning and drafts, and change the direction and size of the air blowout to overcome the disturbance. The air is purified efficiently without being affected by external disturbances.

〔Example〕

An embodiment of the zero starter will be described with reference to the drawings shown in FIGS. 1 and 2.

A rotatable blow-off duct 1 having a plurality of blow-off ports 2 in the vertical direction is erected at four locations equally distributed around the periphery.

A duct 3 is arranged on the ceiling so as to be connected to this air duct 1. The duct 3 has a general mechanism for rotating the blowout duct 1. Further, the duct 3 is provided with a suction port 4 having a suction fan 8 near the center of the duct. Further, a fan 5 is connected to the duct 3 for conveying air to the blowout duct 1.

A sensor 7 for sensing directional wind speed is attached. Note that this sensor 7 may be one that detects the wind speed by sensing the wind pressure instead of sensing the wind speed. The signal sensed by the sensor 7 is taken into the control device 6 and controls the direction of the blow-off ducts 1 to 1, the capacity of the fan 5 for conveying air, and the damper 9 for controlling the air volume of each blow-off duct 1.

Note that instead of the air volume control damper 9, a blowing fan 5 may be provided for each blowing duct 1, and the blowing fan 5 may be used to adjust the airflow of each blowing duct 1.

Arrows 15 indicate air flow.

Air is then blown out from the air outlet 2 in the tangential direction of the cylinder imaginary at the center, forming a tornado. Second [
ff1(a) shows this state.

In this case, the blowing direction of the air from the blowing outlet 2 is directed upward as required.

This tornado is sucked in through the suction port 4 and discharged to the outside. Air purification is achieved in this way.

FIG. 2(b) shows how a tornado is generated when a turbulent airflow 16 flows in the direction as shown from the outer periphery surrounded by the blowout duct 1.

In other words, the balloon direction as shown in Fig. 2(a) is changed to the direction of the balloon as shown in Fig. 2(b).
By changing the direction as shown in , the disturbance airflow 16 is
(Can generate tornadoes.)

Airflow 15 blown out from the blowout duct 1 on the right side of the drawing
The resultant force of the wind force (including wind direction) and the wind force of the turbulent air flow 16 is made to match the wind force of the air flow 15 that was blown out from the conventional right side blow-off duct l-1.

〔Effect of the invention〕

Since the present invention is configured as described above, stable air purification can be achieved by keeping the center of the vortex constant by adjusting the direction of the blowout port and the size of the blowout airflow.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a plan view showing an example of the same control, and FIG. 3 is a perspective view showing a conventional example. 1...Blowout duct, 2...Blowout port, 3...Duct, 4...Suction port, 5...Blowout fan, 6...Controlling mechanism, 7...Sensor, 8...
Suction fan, 9... damper for air volume control

Claims (1)

[Claims] (1) A rotatable air duct with a plurality of air outlets arranged vertically is arranged around the periphery, a mechanism is provided to rotate the air duct, and a suction port with a suction fan is provided in the upper center. A tornado generating device, comprising: a control device that includes a directional wind speed sensor and controls the wind direction and air volume of the outlet based on a signal from the sensor.