A vortex ring generation device includes a casing having a discharge port, an extrusion mechanism, and a component supply port. The extrusion mechanism extrudes air in an air passage inside the casing such that the air is discharged, in a vortex ring shape, from the discharge port. The component supply port surrounds the air passage. A total circumferential length of the component supply port is or more of a total circumferential length of the discharge port. The extrusion mechanism includes a vibration plate and a drive unit that vibrates the vibration plate. The air passage includes a first passage, and a throttle passage continuous with a downstream end of the first passage. A component chamber is provided inside the casing. The component chamber contains a discharge component to be supplied to the component supply port. The component supply port is located downstream of the throttle passage.

A vortex ring generation device includes a casing having a gas passage and a discharge port, and an extrusion mechanism that extrudes a gas in the gas passage such that the gas in a vortex ring shape is discharged from the discharge port. V (m.sup.3) represents an extrusion volume, D (m) represents a diameter of the discharge port, L (m) represents a length of a cylinder having the diameter D and the volume V, and Re represents a Reynolds number of the discharged gas. 500Re3000 and 0.5L/D2.0.

A vortex ring generation device includes a casing having a gas passage and a discharge port, and an extrusion mechanism that extrudes a gas in the gas passage such that the gas in a vortex ring shape is discharged from the discharge port. V (m.sup.3) represents an extrusion volume, D (m) represents a diameter of the discharge port, L (m) represents a length of a cylinder having the diameter D and the volume V, and Re represents a Reynolds number of the discharged gas. 500Re3000 and 0.5L/D2.0.

An invention related to a local exhaust device is disclosed. The disclosed invention comprises a main body part having an inlet port formed on a lower surface thereof and a vertex forming device installed on the main body part for forming a vortex so as to induce intake of external air through the inlet port. The vortex forming device comprises a swirler disposed on the inlet port and rotated so as to form a vortex; a driving part for rotating the swirler, and a flow guide disposed on the inlet port for guiding downstream the flowing air in a rotating process of the swirler. The flow guide comprises an upper surface disposed on an upper portion of the swirler, wherein the upper surface of the flow guide comprises an open region for opening the upper portion of the swirler and a closed region for blocking the upper portion of the swirler.

The suction device includes a suction port revolving around a revolution axis while sucking a fluid so as to generate an artificial tornado. The suction port revolves around the revolution axis while sucking the fluid, so that it is possible to generate an artificial tornado more stably.

An air circulation and/or purification device for recirculating air and/or removing contaminants from the air which includes a housing having a top with an opening for air intake and a bottom, a fan contained within the housing, and a plurality of air output vents contained within multiple sides of the housing near the bottom of the housing. The bottom of the housing may include a conical shaped portion extending inward from the bottom of the housing or other structures to assist in expelling air from the housing in at least two different directions. The device may also include one or more filters designed to capture and filter out different types of contaminants.

A container house having a reinforced insulation property, comprising: a plurality of first spacing members (20) welded to a side wall (13) inside of a container body (10); a plurality of second spacing members (30) welded to a ceiling (14) inside of the container body (10); a plurality of first insulation panels (40) coupled to the first spacing members (20) so as to form a first interval space (D1) between the first insulation panels and the side wall (13); a plurality of second insulation panels (50) coupled to the second spacing members (30) so as to form a second interval space (D2) between the second insulation panels and the ceiling (14); and a plurality of finishing panels (60) attached to the surfaces of the first and second insulation panels (40,50).

An air conditioning device includes an inlet plenum to receive input air, a sprayer to charge at least one of a plurality of liquid droplets generating at least one charged liquid droplet and to release the charged liquid droplet into air rotating vortex, moving the input air within a spray chamber, to cause the charged liquid droplet to attract and attach a vapor molecule of the input air separating the molecule from the input air, a separation chamber to cause the liquid droplet with the attached vapor molecule to separate from the vortex to condense and collect as liquid, and an air outlet to direct, away from the air conditioning device, output air including air remaining following the separation, from the vortex, of the liquid droplet with the attached vapor molecule, where a first humidity of the output air is less than a second humidity of the input air.

An airborne dust cleaner includes a case having an inlet at one side thereof, an outlet at another side thereof, and a space therein, a vortex vacuum generator installed at the inlet and generating and extending a low-pressure zone of a donut-like vortex around the inlet to collect fine dust, and a filtering assembly installed at the outlet and filtering the fine dust collected through the vortex vacuum generator.

The present disclosure relates to a ventilation apparatus. The ventilation apparatus of the present disclosure comprises: a casing; a suction device accommodated in the casing and having a suction fan for generating a suction force for sucking in air; and a vortex forming device accommodated in the casing and having a swirler rotating below the casing to form a vortex and a driving motor for rotating the swirler, wherein the swirler includes a rotating plate having an air passage hole and a plurality of blades arranged and spaced apart in a circumferential direction along the rim of the rotating plate, and the vortex forming device is positioned lower than the rotation center of the suction fan in the casing.