US 6,635,105 B2 · Electrostatic precipitator

Abstract

The invention relates to an electrostatic precipitator for collecting liquid or solid particles from a gas stream. The electrostatic precipitator consists of a tube (1), through which the gas to be cleaned flows longitudinally, the internal wall (1A) of the tube forming a precipitating electrode for the particles to be collected. An internal electrode (2) extending in a lengthwise direction is disposed concentrically inside tube (1), a high electrical voltage being present in the space between this internal electrode and the precipitating electrode. On the inlet side, internal electrode (2) has a first section (2A) with a small cross-sectional area, and on the outlet side, a second section (2B) with a comparatively larger cross-sectional area. The function of the first section is essentially to form a corona while that of the second section is essentially to form an electrostatic collecting field. A cleaning body (3) is provided to clean the section of the internal electrode forming the corona, the cleaning body being moved relative to and in physical contact with the internal electrode so as to clean the section of the internal electrode forming the corona. The actuating element (4) effecting the relative movement is arranged in a space-saving manner inside the hollow internal electrode (2).

Claims15

Dependent claims

Electrostatic precipitator for collecting liquid or solid particles from a gas stream, comprising

a tube through which the gas stream to be cleaned flows longitudinally and in which an internal wall forms a precipitating electrode for collecting particles,
an internal electrode disposed concentrically and longitudinally inside the tube, wherein a high electrical voltage is present in a space formed between the internal electrode and the precipitating electrode, the internal electrode having a first section with a small cross-sectional area on an inlet side, and a second section with a larger cross-sectional area on an outlet side, the first section being configured to form the corona, and the second section being configured to form an electrostatic collecting field,
a cleaning body for cleaning the first section of the internal electrode, the cleaning being effected by relative movement of the cleaning body against the first section of the internal electrode, and
at least one actuator to effect the relative movement between the cleaning body and the first section of the internal electrode,
wherein at least the second section of the internal electrode (2) is hollow, and a cavity of the internal electrode is sized to accommodate at least one of a portion of the actuator and at least one power-transmission means connected to the actuator for effecting the relative movement between the cleaning body and the first section of the internal electrode.

2 more elements

Dependencies are inferred from the claim text.

Electrostatic precipitator

Life of this patent

Electrostatic precipitator

Life of this patent

Abstract

Claims15