Gas shut-off in a particulate removal device and method
AssigneeDürr Systems AG
InventorsJames Cash, Jeffrey Rudolph
Life of this patent
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Abstract
Method and apparatus for cleaning pollution control equipment, such as particulate removal devices, including wet electrostatic precipitators (WESP). The apparatus may include a housing having a chamber, at least one process gas inlet in fluid communication with the chamber, a process gas outlet spaced from the at least one process gas inlet and in fluid communication with the chamber, one or more ionizing electrodes in the housing and one or more collection electrodes or plates in the housing. Sealing liquid is provided and introduced into the chamber in an amount sufficient to submerge the at least one process gas inlet and stop the flow of contaminated gas into the chamber.
Claims9
A method of ceasing gas flow into a particulate removal device, comprising:
- providing the particulate removal device comprising at least one ionizing electrode, at least one particulate collection electrode, a source of high voltage for charging said at least one ionizing electrode, a source of sealing liquid, and a first chamber having at least one inlet for introducing a process gas into said particulate removal device, said first chamber being in fluid communication with said at least one ionizing electrode and said at least one particulate collection electrode;
- introducing said process gas into said first chamber via said at least one inlet;
- introducing said sealing liquid into said first chamber in an amount sufficient to submerge said at least one inlet and stopping said flow of said process gas into said first chamber;
- and
- flushing said first chamber while said sealing liquid is preventing said process gas flow through said first chamber.
Dependencies are inferred from the claim text.