An inertial particle separator includes a body with an outer wall, an inlet, an outlet, an inner nozzle, a settling chamber, a serpentine channel, and a filter element. The inlet is disposed on an upstream end of the body. The outlet is disposed on a downstream end of the body. The inner nozzle is disposed radially inward from the outer wall and forms a primary flow passage. The settling chamber is disposed in the body and extends between the outer wall and the inner nozzle. The settling chamber forms a secondary flow passage and is fluidly connected to the inlet and the outlet. The serpentine channel fluidly connects fluidly connects the inlet and the settling chamber and is disposed radially between the outer wall of the body and the inner nozzle. The filter element is disposed in the settling chamber.

Provided is an air or gas cleaning blower with a spiral separation chamber. An impeller draws in particulate-pervaded air or gas and imposes a centrifugal force that accelerates the particulate-pervaded air or gas outwards in the chamber. The particulates, because of their heavier mass relative to the air or gas, accumulate against the outer chamber wall. Most of the lighter air or gas is unable to penetrate through the layer of particulates and is trapped in between the particulates about the outer wall and the inner wall of the chamber. The impeller pushes the separated particulates and cleaned air or gas further down the chamber with the particulates ejecting out a first outlet about the outer chamber wall and the cleaned air or gas circulating around the first outlet, moving further down the chamber, and ejecting out a second outlet.

The invention relates to an air conditioning system for air purification of buildings, in particular residential, office, administrative and/or industrial buildings, with at least one cyclone separator for separating solid and/or liquid particles of a gaseous medium, in particular air, and at least one irradiation device associated with the cyclone separator for UV irradiation, in particular UV-C irradiation, of the gaseous medium, in particular air, flowing through the irradiation device, preferably for inactivating microorganisms present in the medium, such as bacteria, germs, mold and/or viruses.

The invention relates to an air conditioning system for air purification of buildings, in particular residential, office, administrative and/or industrial buildings, with at least one cyclone separator for separating solid and/or liquid particles of a gaseous medium, in particular air, and at least one irradiation device associated with the cyclone separator for UV irradiation, in particular UV-C irradiation, of the gaseous medium, in particular air, flowing through the irradiation device, preferably for inactivating microorganisms present in the medium, such as bacteria, germs, mold and/or viruses.

An air flow-based cooling device includes: a vertically stacked cell string formed by vertically stacking a plurality of cells, each of the plurality of cells having a heat-generating object installed therein; an air intake pipe installed to vertically penetrate one end of the vertically stacked cell string; an air discharge pipe installed to discharge the horizontal air through a discharge opening in each of the plurality of cells and vertically penetrate the other end of the vertically stacked cell string to generate a second vertical air flow using the horizontal air through a discharge splitter installed in an air outlet; an air intake duct connected to one end of the air intake pipe and providing the first vertical air to the intake splitter; and an air discharge duct connected to one end of the air discharge pipe.

Air filtration devices are described for wet air filtration. In exemplary embodiments, an air filtration device includes a housing having an air intake and an air outlet. An air conduit extends between the air intake and the air outlet. A fan is positioned in the air conduit and configured to draw air into the device via the air intake and propel the air through an air channel towards the air outlet. The air conduit includes a liquid introduction section configured to introduce a liquid to the air in the air channel, and a liquid removal section configured to guide the air in a downward helical path downstream of the liquid introduction section configured to separate the liquid from the air using centrifugal force.

Air filtration devices are described for wet air filtration. In exemplary embodiments, an air filtration device includes a housing having an air intake and an air outlet. An air conduit extends between the air intake and the air outlet. A fan is positioned in the air conduit and configured to draw air into the device via the air intake and propel the air through an air channel towards the air outlet. The air conduit includes a liquid introduction section configured to introduce a liquid to the air in the air channel, and a liquid removal section configured to guide the air in a downward helical path downstream of the liquid introduction section configured to separate the liquid from the air using centrifugal force.

An air filter system for use as original equipment or conventional filter replacement in a building ventilation system includes multiple helical particle separator elements in a parallel array, each element configured to remove particles from a respective portion of contaminated inflowing air. The outflows from the separator elements are combined into a common clean air outflow which is delivered to the building ventilation system. A common waste receptable collects particles removed by the separator elements and is cooperatively connected to a scavenger air system that draws air through the array and the receptable and relocates them to a desired location. The separator element array may be housed in a filter system containing the main system fan arrangement that is configured to draw or force the airflow through the multiple particle separators.

An air filter system for use as original equipment or conventional filter replacement in a building ventilation system includes multiple helical particle separator elements in a parallel array, each element configured to remove particles from a respective portion of contaminated inflowing air. The outflows from the separator elements are combined into a common clean air outflow which is delivered to the building ventilation system. A common waste receptable collects particles removed by the separator elements and is cooperatively connected to a scavenger air system that draws air through the array and the receptable and relocates them to a desired location. The separator element array may be housed in a filter system containing the main system fan arrangement that is configured to draw or force the airflow through the multiple particle separators.