Method of estimating the dust load of an ESP, and a method and a device of controlling the rapping of an ESP
AssigneeALSTOM Technology Ltd
InventorsScott A. Boyden, Anders Karlsson
Life of this patent
Estimating the term…
Abstract
A device and method for controlling the rapping of at least one collecting electrode plate (30) of an electrostatic precipitator (1) is provided. The device controls such rapping by applying, by means of a power source (32), a voltage between at least one collecting electrode plate (30) and at least one discharge electrode (28). The sparking rate between the at least one collecting electrode plate (30) and at least one discharge electrode (28) is then measured, with the rapping of the at least one collecting electrode plate (30) controlled using the measured present sparking rate.
Claims12
A method of controlling the rapping of at least one collecting electrode plate of an electrostatic precipitator, the method comprising
- applying, by means of a power source, a voltage between said at least one collecting electrode plate and at least one discharge electrode,
- measuring the sparking rate between said at least one collecting electrode plate and said at least one discharge electrode, and
- controlling rapping of said at least one collecting electrode plate to begin at a point in time based upon a selected control sparking rate.
A method of estimating the present load of dust particles existing on at least one collecting electrode plate of an electrostatic precipitator, the method comprising
- applying, by means of a power source, a voltage between said at least one collecting electrode plate and at least one discharge electrode,
- measuring the sparking rate between said at least one collecting electrode plate and said at least one discharge electrode, and
- estimating the load of dust particles on said at least one collecting electrode plate using the measured sparking rate and controlling rapping of said at least one collecting electrode plate to begin at a point in time based upon the measured sparking rate.
A device for estimating the load of dust particles on at least one collecting electrode plate of an electrostatic precipitator,
- said device comprising
- said at least one collecting electrode plate, at least one discharge electrode, and a power source adapted for applying a voltage between said at least one collecting electrode and said at least one discharge electrode,
- a measurement device adapted for measuring the sparking rate between said at least one collecting electrode plate, and said at least one discharge electrode, and
- an estimating device which is adapted for estimating the load of dust particles on said at least one collecting electrode plate using the measured sparking rate and a control device which is adapted for controlling rapping of said at least one collecting electrode plate to begin at a point in time based upon the measured sparking rate.
A device for controlling the rapping of at least one collecting electrode plate of an electrostatic precipitator, said device comprising
- said at least one collecting electrode plate, at least one discharge electrode, and a power source adapted for applying a voltage between said at least one collecting electrode plate and said at least one discharge electrode,
- a measurement device adapted for measuring the sparking rate between said at least one collecting electrode plate, and said at least one discharge electrode, and
- a control device which is adapted for controlling the rapping of said at least one collecting electrode plate to begin at a point in time based upon the measured sparking rate.
Dependencies are inferred from the claim text.