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.

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 integrated enhanced heat exchange method by boundary layer control with mainstream disturbance comprises a multiple of heat transfer enhancement units, in which a periodic vortex is formed along a extending direction of the flow control channel by setting boundary layer flow control devices, the vortex cleans the cold and hot side walls, as a result the flow boundary layer that hinders heat transfer is destroyed, and rapidly transferring cold and heat energy generated from the cold and hot side walls to a flow mainstream channel is realized. A mainstream disturbance device is set on the mainstream of flow to form an axial vortex at the back of the mainstream disturbance device, the axial vortex cooperates with a stream from the flow boundary layer to rapidly transfer the cold and heat energy from the flow boundary layer to entire field to form an even temperature field.

An air exhaust apparatus includes a housing, a shaft, a bearing part, a propeller, and an impeller disposed at a lower portion of the shaft. The housing has a space formed therein and an outlet formed at an upper portion thereof to discharge air flowed into the space. The shaft is installed inside of the housing in a vertical direction. The bearing part supports the shaft to revolve. The propeller is disposed at an upper portion of the shaft to be rotated by an exhaust suction flow in a duct. The impeller includes a rotating plate having a through hole for air inlet and a plurality of fins formed on the rotating plate, and is rotated with the propeller. A funnel-shaped vortex is formed under the impeller when the propeller and impeller revolve.

An air diffuser for supplying air to a space, the diffuser having a central axis and comprising; a plurality of discharge elements arranged to guide an air stream towards the space, the plurality of discharge elements having respective edge regions that define a face of the diffuser; wherein a plurality of channels are located about the diffuser central axis, each channel being formed between adjacent pairs of discharge elements and configured to guide the air to the space. Wherein at least one of the discharge elements comprises a peripheral portion and a proximal portion relative to the central axis, and wherein the peripheral portion has a first air guide surface positioned at a first acute angle to the diffuser face, and the proximal portion has a second air guide surface positioned at a second acute angle to the diffuser face, the second angle being different to the first.

A heating, ventilating, and air conditioning (HVAC) blower that includes a housing that defines an air inlet, an air outlet, and a passageway therebetween. An airflow may be directed from the air inlet to the air outlet through the passageway. The housing at the air outlet includes an outlet end portion with a plurality of flutes that extend from the passageway.

A dehumidifying apparatus includes a tubular vortex-effect generating portion, a gas inflow portion generating a swirling flow of a gas inside the vortex-effect generating portion by allowing a gas to be dehumidified to flow into the vortex-effect generating portion, a dew-condensation generating portion arranged at a place where a gas reduced in temperature flows in gases separated into a swirling flow reduced in temperature to be lower than a dew point of the gas and a swirling flow increased in temperature inside the vortex-effect generating portion, and generating dew condensation on a surface thereof, a moisture collecting portion collecting condensed moisture and a gas outflow portion provided at an end portion on a downstream side of the vortex-effect generating portion, from which the gas flowing from the gas inflow portion flows out.

An air shower apparatus includes a plurality of blowers provided in a face portion, and a plurality of blowers provided in a face portion disposed to face the face portion. A suction port included in a blower is disposed to face a blow-out port included in a blower. In a set of the blower and the blower, the blower blows out a spiral airflow from the blow-out port, and the blower sucks the spiral airflow from the suction port. The air shower apparatus generates an air shower by a plurality of spiral airflows blown out from a plurality of blow-out ports.

The noise damper includes a casing delimiting an air passage, the casing having walls each includes an acoustic insulation layer. The noise damper includes: at least one baffle arranged in the air passage to separate the air passage in several channels, each channel extending substantially parallel to a longitudinal direction, and a helical deflector arranged in each channel, extending parallel to the longitudinal direction.

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).