Abstract:
A negative ionizer air purifier is provided. It includes a power adapter, a high-voltage generator and discharge terminals. A first input terminal of the power adapter connects to the live wire of the AC mains, a second input terminal connects to the naught wire, and the third input terminal connects to the earth wire. The power adapter converts an AC voltage inputted through its first and second input terminals to a low DC voltage and outputs it to the high-voltage generator, which further boosts the low DC voltage to a high DC voltage and outputs it. The first output terminal of the high-voltage generator connects to the discharge terminals, and the second output terminal connects to a reference earth and also to the third input terminal of the power adapter, where the reference earth refers to the housing of the negative air purifier.
Abstract:
A device for collecting particles in air comprising a collecting chamber (4), a capillary tube (12) whereof one end (12.1) terminates in the chamber (4), a collecting electrode, the capillary tube (12) containing polarisable liquid. Sufficient difference in voltage is applied between the liquid and the collecting electrode (16) for a corona effect between the drop of liquid at the end of the capillary tube (12) and the collecting electrode (12) and the spraying of the drop (20) by electrospray. The corona discharge causes flow of air through the collecting chamber (4) and the electrospray ensures wetting of the collecting electrode (16).
Abstract:
The invention provides a method for the removal of a gaseous fluid comprising (a) applying an electric field between a first electrode arranged to generate a corona discharge and a second electrode, comprising a haze-permeable electrically conductive sieve of a plurality of conductive strands, (b) atomizing a liquid to providing a liquid haze between the first and the second electrode, wherein the liquid is a solvent for the gaseous fluid, and (c) arranging a substrate behind, relative to the first electrode, the second electrode.
Abstract:
The present invention provides methods and systems for an ion generation device that includes an elongate housing having a back portion and a pair of side portions extending from the back portion and forming a cavity therein. A conductive portion is disposed within the cavity and connected to a power supply for providing power to the conductive portion. A plurality of tines are engaged to the conductive portion.
Abstract:
An air purifier device includes a chamber defined by a side wall arranged to guide an air flow through the air purifier device. The air purifier device further includes at least one emitter electrode and at least one collector plate electrode arranged to ionize airborne particles. The at least one emitter electrode is arranged to extend from the side wall and inwards in the chamber and the at least one collector plate electrode is arranged to extend from the side wall and inwards in the chamber. The air purifier device enables the side wall to be manufactured from e.g. plastic, or other non-conductive or non-magnetic material. This in turn may enable a lower weight of the air purifier device and facilitated manufacturing, as the side walls of the chamber e.g. may be formed by plastic moulding just as many other parts of the air purifier device.
Abstract:
Apparatus and method for removal of particles and VOC from an airstream, in which particles carried by the airstream are charged by a corona ionizer and then collected by an electrically enhanced filter downstream of the ionizer. A catalytic filter downstream of the electrically enhanced filter removes VOC as well as ozone generated by the ionizer.
Abstract:
A filtration assembly (1), which comprises an enclosure (2) which defines inside it a duct (3) for the passage of a fluid which carries pollutant particles (A) to be removed. At a first transverse cross-section of the duct (3) at least one perforated conducting grille (4) is provided, which is kept at a negative electrical potential, so as to emit into the duct (3) electrons which can bond to the pollutant particles (A), consequently giving them a negative electrical charge. Inside the duct (3), downstream of the grille (4), at least one accumulation plate (5) is provided, kept at a positive electrical voltage, for collecting the pollutant particles (A) charged electrically negatively by the electrons emitted by the grille (4). Moreover, at least one deflection element (6) is arranged proximate to the accumulation plate (5) and is kept at a negative electrical potential in order to generate an electrical field inside the duct (3), with consequent redirection of the negatively electrically charged particles (A) toward the accumulation plate (5). The assembly comprises at least one conducting filament (7), which faces and is proximate to a respective hole (8) of the grille (4). The filament (7) is kept at a negative electrical potential, for the emission of electrons, which can bond to the pollutant particles (A) carried at least by the portion of fluid that passes through the respective hole (8).
Abstract:
Apparatus and method for removal of particles and VOC from an airstream, in which particles carried by the airstream are charged by a corona ionizer and then collected by an electrically enhanced filter downstream of the ionizer. A catalytic filter downstream of the electrically enhanced filter removes VOC as well as ozone generated by the ionizer.
Abstract:
Methods using vane electrostatic precipitators collect charged and uncharged particles with vane assemblies that are physically arranged to reduce the air flow rate to at or below 1.0 ft/sec (0.305 m/sec). In preferred embodiments, the main entrained air is divided into smaller proportions by using a plurality of vane assemblies in a vane electrostatic precipitator operating at a specific angle that have discharge electrodes in front of the vanes. This results in both the particles being charged and the flow rate of the air and articles being reduced as they traverse between vanes and over the vane surface. The vane width, operating angle, vane length and vane offset are designed to reduce the air flow rate. As a result, at the ends of the vanes, a high percentage of the air flow is less than 1 ft/s. This allows the particles that are discharged from the vanes during operation to fall by gravity and in the direction of lower air flow, resulting in extremely low re-entrainment and efficient particle collection.
Abstract:
An electrode support for an electrode of an electrically-enhanced air filtration system includes a conductor extending through the electrode support and electrically connectible to the electrode and to a power supply. An insulative layer is located around the conductor and the electrode support is configured to position the electrode in a frame of the air filtration system. An air filtration system includes a frame directing an airflow through the air filtration system and an electrode located in the frame. An electrode support positions the electrode in the frame and includes a conductor extending through the electrode support and electrically connected to the electrode and an insulative layer located around the conductor. An electrical power supply is electrically connected to the conductor to provide electrical power to the electrode.