| 摘要 |
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). |
| 主权项 |
1. A filtration assembly, comprising an enclosure which defines inside it a duct for the passage of a fluid which carries pollutant particles to be removed, at a first transverse cross-section of said duct at least one perforated conducting grille being provided, which is kept at a negative electrical potential, for the emission into said duct of electrons which can bond to the pollutant particles, consequently giving them a negative electrical charge, inside said duct, downstream of said grille, at least one accumulation plate being provided, kept at a positive electrical voltage, for collecting the pollutant particles charged electrically negatively by the electrons emitted by said grille, at least one deflection element being arranged proximate to said accumulation plate and being kept at a negative electrical potential in order to generate an electrical field inside said duct, with consequent redirection of the negatively electrically charged particles toward said accumulation plate, wherein at least one conducting filament, which faces and is proximate to a respective hole of said grille, said filament being kept at a negative electrical potential, for the emission of electrons, which can bond to the pollutant particles carried at least by the portion of fluid that passes through said respective hole. |
