The present disclosure relates to methods and devices for removing an aerosol generated during a printing process. In an example there is disclosed a device which may comprise an air suction device, an air flow baffle, an aerosol absorber, and a droplet filter. The air suction device may draw air away from an area around a printhead nozzle, past the air flow baffle, through the droplet filter, towards the air suction device. The air flow baffle may cause a change in air flow direction such that at least some aerosol droplets contact the aerosol absorber.

A hydro-enhanced air cleaner is provided as a stand-alone unit or as a component of a heating, ventilation, air conditioning system for a building which cleans and purifies ambient air and is also capable of producing potable water in humid environments. The device includes a dehumidifier which extracts polluted humid air and produces condensate including water and pollutants which adhere to the water. A degasser is connected with the dehumidifier to purify and degas the condensate to produce deionized water and pollutants. A humidifier is connected with the degasser to vaporize at least a portion of the deionized water for delivery to a living space. Excess deionized water may be collected as a potable water supply. In accordance with a method, the apparatus is used to continuously recycle air within a building further continuously clean the air.

The filtration device enables the separation and collection of dust and particles produced by the pads of a brake assembly. A first separation unit having an air filtration medium, typically annular, is provided in the housing of the device, in order to define an upstream zone where air is admitted, for example tangentially, and a downstream zone in communication with an outlet of the housing for discharging the purified air. The upstream zone is in communication with a lower stage situated lower down, in which a second separation unit is located in order to separate water from particles that have fallen from the upstream zone. A filtration by the second unit is intended to collect clean water and possibly to discharge this water by gravitational flow. The fallen particles remain trapped inside the device, under the first unit.

A rotating coalescer having an ejected coalesced liquid separating device is described. The separating device prevents re-entrainment of liquid into a stream of filtered gas. The rotating coalescer includes a rotating filter element or coalescing cone stack positioned within a rotating coalescer housing. The outer surface of the rotating filter element or the outlet of the coalescing cone stack is displaced from the inner surface of the rotating coalescer housing. The gap between the rotating filter element or the coalescing cone stack and the rotating coalescer housing allows for ejected coalesced liquid, such as oil, to accumulate on the inner surface of the rotating coalescer housing for drainage and allows for filtered gas, such as air, to exit through a clean gas outlet of the rotating coalescer housing.

Disclosed is an internal circulation type lampblack purifier. The internal circulation type lampblack purifier comprises a shell, an air inlet, an air outlet, an air inlet channel, an air outlet channel, a fan device, a mechanical grease separator, a gas purification device and a cooling device, wherein the air inlet and the air outlet are arranged on the shell; the mechanical grease separator is arranged at the air inlet or in the air inlet channel; and the cooling device is arranged at the air outlet and comprises a water supply pipe, water spray guide plates, a water mist baffle plate, a spray pipe and a water receiving tank, the spray pipe communicates with the water supply pipe, spray nozzles are arranged on the spray pipe and face the water spray guide plates, the water receiving tank is located below the water spray guide plates, and the water mist baffle plate is provided with blades at certain gaps. According to the internal circulation type lampblack purifier, the cooling device is arranged, so that the temperature of discharged gas is effectively reduced, high-temperature water vapor in the discharged gas is eliminated, and the influence of the high-temperature water vapor on the indoor environment is prevented.

An air separation module includes a cylindrical canister and a separator. The cylindrical canister has a longitudinal axis, an inlet, an oxygen-depleted air outlet, and a drain portion with an oxygen-enriched air outlet. The separator is arranged within the cylindrical canister to separate a compressed air flow into an oxygen-depleted air flow fraction and an oxygen-enriched air flow fraction, the oxygen-depleted air flow fraction provided to the oxygen-depleted air outlet and the oxygen-enriched air flow fraction to the drain portion of the canister. The drain portion extends tangentially from the cylindrical canister to issue the oxygen-enriched air flow fraction with entrained condensate from the oxygen-enriched air outlet with a tangential flow component. Nitrogen generation systems and methods of removing condensate from air separation modules are also described.

A rotating coalescer having an ejected coalesced liquid separating device is described. The separating device prevents re-entrainment of liquid into a stream of filtered gas. The rotating coalescer includes a rotating filter element or coalescing cone stack positioned within a rotating coalescer housing. The outer surface of the rotating filter element or the outlet of the coalescing cone stack is displaced from the inner surface of the rotating coalescer housing. The gap between the rotating filter element or the coalescing cone stack and the rotating coalescer housing allows for ejected coalesced liquid, such as oil, to accumulate on the inner surface of the rotating coalescer housing for drainage and allows for filtered gas, such as air, to exit through a clean gas outlet of the rotating coalescer housing.

A liquid separator for separating liquid out of a gas/liquid mixture, including an inlet, an outlet, a flow path connecting the inlet to the outlet and at least one separating device arranged in the flow path, the liquid separator being designed and embodied with simple structure and a compact construction to enable reliable separation of liquids in such a way that the separating device has a fabric portion for liquid separation through which the flow path passes, the fabric portion being arranged at an angle of 1° to 15° relative to the main flow direction in the separating device.

A water separator includes an outer annular passage extending along a central longitudinal axis of water separator to direct an airflow along a first direction, and an inner annular passage located radially inboard of the outer annular passage and coaxial with the outer annular passage to direct the airflow along a second direction. A coalescer is located along the outer annular passage to coalesce water in the airflow. A water collector is located along the inner annular passage to collect the water. An airflow outlet is located downstream of the water collector through which the airflow exits the water separator.

A set including a filter candle for separating a compressed gas and a disperse phase present therein, and a bottom cap placed on a lower side of the filter candle. The filter candle contains a filter medium containing a coalescence medium for coalescing the disperse phase and a drainage medium for draining the coalesced disperse phase in a downward direction to the bottom cap, where at least one drainage opening is provided in the bottom cap at a position corresponding to the drainage medium for discharging coalesced liquid from the drainage medium. A side of the bottom cap facing away from the filter medium is provided with a drip-off position and with at least one drainage profile which extends from the at least one drainage opening, where the drainage profile is provided for discharging the coalesced disperse phase from the at least one draining opening to the drip-off position.