Abstract

A system for the purification of the particulate present in fumes and in exhaust gases in combustion processes, comprising an Ionizing Part (PI) and a Collection Part (PR), wherein the Ionizing Part (PI) comprises a perforated portion (40, 50) with at least one electron emitter inside the holes (42, 52) consisting of one or more tips (P) to which a high negative voltage is applied to create an electron cloud, wherein said negative supply is provided by a constant voltage generator, in which the fumes and exhaust gases are passed through the Ionizing Part (PI) to transfer a negative charge to the particles of particulate present in the flow of the fumes and exhaust gases, and wherein the Collection Part (PR) comprises a plurality of metal pipes (20) positively charged to collect the particles of particulate previously negatively charged.

IPC Classes  ?

• B03C 3/02 - Plant or installations having external electricity supply
• B03C 3/06 - Plant or installations having external electricity supply dry type characterised by presence of stationary tube electrodes
• B03C 3/12 - Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
• B03C 3/41 - Ionising-electrodes
• B03C 3/49 - Collecting-electrodes tubular

Abstract

A system for the purification of the particulate present in fumes and in exhaust gases in combustion processes comprises an Ionizing Part (PI) and a Collection Pan (PR). The Ionizing Part (PI) comprises a perforated portion (40, 50) with at least one electron emitter in the holes (42, 52), consisting of one or more tips (P) to which a negative voltage is applied to create an electron cloud. The negative power supply is provided by a constant voltage generator. The fumes and exhaust gases arc passed through the Ionizing Part (PI) to transfer a negative charge to the particles of the particulate present in the flow of fumes and exhaust gases. The Collection Part (PR) comprises a plurality of positively loaded facing and spaced plates (22b) interposed with a plurality of shield plates (20b) to which no voltage is applied and are not connected to ground, to collect the particles of particulate previously negatively charged.

IPC Classes  ?

• B03C 3/41 - Ionising-electrodes
• B03C 3/47 - Collecting-electrodes flat, e.g. plates, discs, gratings
• B03C 3/08 - Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
• B03C 3/12 - Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations

Abstract

A system for the purification of the particulate present in fumes and in exhaust gases in combustion processes comprises an Ionizing Part (PI) and a Collection Part (PR). The Ionizing Part (PI) comprises a perforated portion (40, 50) with at least one electron emitter in the holes (42, 52), consisting of one or more tips (P) to which a negative voltage is applied to create an electron cloud. The negative power supply is provided by a constant voltage generator. The fumes and exhaust gases are passed through the Ionizing Part (PI) to transfer a negative charge to the particles of the particulate present in the flow of fumes and exhaust gases. The Collection Part (PR) comprises a plurality of positively loaded facing and spaced plates (22b) interposed with a plurality of shield plates (20b) to which no voltage is applied and are not connected to ground, to collect the particles of particulate previously negatively charged.

IPC Classes  ?

• B03C 3/08 - Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
• B03C 3/12 - Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
• B03C 3/41 - Ionising-electrodes
• B03C 3/47 - Collecting-electrodes flat, e.g. plates, discs, gratings
• B03C 3/02 - Plant or installations having external electricity supply

Abstract

A system for the purification of the particulate present in fumes and in exhaust gases in combustion processes, comprising an Ionizing Part (PI) and a Collection Part (PR), wherein the Ionizing Part (PI) comprises a perforated portion (40, 50) with at least one electron emitter inside the holes (42, 52) consisting of one or more tips (P) to which a high negative voltage is applied to create an electron cloud, wherein said negative supply is provided by a constant voltage generator, in which the fumes and exhaust gases are passed through the Ionizing Part (PI) to transfer a negative charge to the particles of particulate present in the flow of the fumes and exhaust gases, and wherein the Collection Part (PR) comprises a plurality of metal pipes (20) positively charged to collect the particles of particulate previously negatively charged.

IPC Classes  ?

• B03C 3/06 - Plant or installations having external electricity supply dry type characterised by presence of stationary tube electrodes
• B03C 3/12 - Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
• B03C 3/41 - Ionising-electrodes
• B03C 3/49 - Collecting-electrodes tubular
• B03C 3/02 - Plant or installations having external electricity supply

Abstract

A particulate filtration apparatus for exhaust, combustion or other gases includes an enclosure for the output of a flow of such gases, prior to their release into the outside environment. An internal duct crossed by the flow and affected by a perforated conducting plate is kept at a negative electrical potential, for emission and dispersion in the duct of electrons coupled to polluting particles carried by the flow and substantially constituting the particulate, consequently giving them a negative electrical charge. Along the duct downstream of the perforated plate is an accumulation plate, kept at a positive electrical potential, for the attraction and stable adhesion of the electrically charged particles on the accumulation plate. A conducting filament at a negative electrical potential adjacent at least one opening of the perforated plate is a primary source of emission and dispersion of electrons which are coupled to particles carried by the flow.

IPC Classes  ?

• B03C 3/12 - Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
• B03C 3/41 - Ionising-electrodes
• B03C 3/47 - Collecting-electrodes flat, e.g. plates, discs, gratings
• B03C 3/08 - Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
• B03C 3/09 - Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream

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).

IPC Classes  ?

• B03C 3/41 - Ionising-electrodes
• B03C 3/47 - Collecting-electrodes flat, e.g. plates, discs, gratings
• A61L 9/20 - Ultraviolet radiation
• B03C 3/08 - Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
• B03C 3/12 - Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
• B03C 3/36 - Controlling flow of gases or vapour

Abstract

A filtering assembly for air and gaseous fluids in general is provided comprising a duct, which can be crossed by a gaseous fluid carrying pollutants. The filtering assembly comprises: at least one filtering station to remove toxic gases and solid particle pollutants of dimensions preferably greater than 50 μm; at least one conductive grille, having at least one hole which faces and is proximate to at least one conductive filament being kept at a negative electric potential for the emission of electrons, which can be paired with pollutants of the solid particles and micro-organisms type of dimensions preferably between 10 nm and 50 μm, at least one accumulation plate downstream of the grille, maintained at a positive electrical potential for the stable collection of pollutants paired with the electrons at least one emission source of ions, for the restoration of electric charge of the gaseous fluid, flowing over the source.

IPC Classes  ?

• B03C 3/12 - Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
• A61L 9/16 - Disinfection, sterilisation or deodorisation of air using physical phenomena
• A61L 9/22 - Ionisation
• B03C 3/41 - Ionising-electrodes
• F24F 3/16 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by ozonisation
• A61L 9/00 - Disinfection, sterilisation or deodorisation of air
• B03C 3/155 - Filtration
• B03C 3/08 - Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
• B03C 3/09 - Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream
• B03C 3/36 - Controlling flow of gases or vapour
• B03C 3/47 - Collecting-electrodes flat, e.g. plates, discs, gratings
• H01T 23/00 - Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
• A61L 2/10 - Ultraviolet radiation

Abstract

An air filtration device for suppressing biological pollutants for closed environments, including at least one enclosure with at least one air inlet, at which at least one perforated conducting grille is located, that has a present negative electrical potential adapted to emit electrons when air flows, so as to give negative electric charge to particles to which microorganisms adhere, at least one air passage duct being formed between at least one plate having predefined positive potential for collecting negatively charged particles to which microorganisms adhere, at least one deflector plate having a negative potential adapted to divert the particles to which microorganisms adhere, an electrical field being generated between the collector plate and the deflector plate, facing each other, the field to divert and precipitate the particles to which the microorganism adhere onto the collector plate, and an inactivator for inactivation of the microorganisms provided and at least one filtered air outlet.

IPC Classes  ?

• B03C 3/016 - Pretreatment of the gases prior to electrostatic precipitation by acoustic or electromagnetic energy, e.g. ultraviolet light