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7497893 |
Method of electrostatic acceleration of a fluid
A method for handling a fluid may be incorporated into the operation of, for example, a corona discharge device and an electric power supply. Such a corona discharge device typically includes at...
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7364606 |
Exhaust emission control device
Provided are a hollow inner electrode constituted by an electrically conductive filter capable of capturing particulates, a cylindrical outer electrode circumferentially surrounding the electrode,...
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7351274 |
Air filtration system control
An intense field dielectric air filtration system associated with an air conditioning unit includes a microprocessor based control system which may be connected to the thermostat of the air...
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7122070 |
Method of and apparatus for electrostatic fluid acceleration control of a fluid flow
A device for handling a fluid includes a corona discharge device and an electric power supply. The corona discharge device includes at least one corona discharge electrode and at least one...
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6899748 |
Method and apparatus for removing contaminants from gas streams
A method and apparatus for removing contaminants from gas streams. A first step involves selecting a contaminant to be removed from a gas stream and determining a characteristic ionizing energy...
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5707422 |
Method of controlling the supply of conditioning agent to an electrostatic precipitator
A method for use in an electrostatic precipitator unit, of controlling, with a view to cleaning an incoming dust-laden gas, the supply of conditioning agent to the incoming contaminated gas...
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5597403 |
Flue gas conditioning system for intermittently energized precipitation
A system for preconditioning flue gas to be treated in an electrostatic precipitator having a set of electrostatic elements and a power supply, which supplies an intermittent power to the...
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5591249 |
Flue gas conditioning method for intermittently energized precipitation
A method is used for preconditioning flue gas to be treated in an electrostatic precipitator having a set of electrostatic elements which are intermittently energized by a power supply. The method...
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5542964 |
Method of air purification
Air purification system where air is subjected to complex electrical field resulting from a DC voltage and AC frequency in kilovolt and kilohertz range respectively, applied to screen assembly in...
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5531959 |
Automated liquid handling and computer controlled system and method for solid phase chromatographic extractions
A method and apparatus for solid phase extraction chromatography is disclosed in which the flow rate of a fluid, such as the motive pressurized gas is monitored, adjusted and compared with a...
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5471377 |
Process for controlling a power supply which supplies power to an electrostatic filter in which secondary circuit states are determined based on measured primary circuit values and in which short circuits are detected
A filter short circuit is detected when the primary voltage of the high-voltage transformer drops below a specified minimum value and does not rise above the specified minimum value during a...
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5401299 |
Air purification apparatus
Air purification system where air is subjected to complex electrical field resulting from a DC voltage and AC frequency in kilovolt and kilohertz range respectively, applied to screen assembly in...
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5378978 |
System for controlling an electrostatic precipitator using digital signal processing
A system for controlling an electrostatic precipitator adapted to be powered by an alternating power source includes a regulator for regulating at least one precipitator operating parameter in...
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5311420 |
Automatic back corona detection and protection system
An automatic back corona detection and protection system (200) is provided for controlling an electrostatic dust precipitator (80). The system (200) includes a subsystem for monitoring voltage and...
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4936876 |
Method and apparatus for detecting back corona in an electrostatic filter with ordinary or intermittent DC-voltage supply
In an electrostatic precipitator for cleansing flue gases from industrial plants, comprising one or more precipitator sections powered from a separate continuous or intermittent DC-voltage electric...
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4779207 |
SO.sub.3 flue gas conditioning system
An air pollution control system for injecting a conditioning agent into the flue gas of a power generator. The conditioning agent changes the resistivity of particulate matter in the flue gas,...
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4626260 |
Method of controlling the pulse frequency of a pulse operated electrostatic precipitator
A method of controlling the pulse frequency of an electrostatic precipitator energized by a pulse superimposed direct voltage, is disclosed in which, for a given direct and/or pulse voltage, the...
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4562522 |
Power supply for an electrostatic air cleaner with a modulated pulse width voltage input having a backup pulse width limiting means
A power supply usable with various size loads has an input circuit receiving pulses of voltage at 25 kilohertz. The pulses are modulated in width depending upon the input to a pulse-width...
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4486704 |
Control device for an electrostatic dust separator
A control device for an electrostatic dust separator (10,11) intended to control in relation to the recorded level of direct current (104) and direct current voltage (102) in the dust separator and...
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4390831 |
Electrostatic precipitator control
Voltage and current supplied to the primary winding of the transformer-rectifier (T-R) set of an electrostatic precipitator via silicon-controlled rectifiers and a reactor are automatically...
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4390830 |
Back corona detection and current setback for electrostatic precipitators
A back corona detector that reduces current flow to the plates of an electrostatic precipitator when a corona occurs between a plate and the dust layer that forms on the plate thereby minimizing...
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4354860 |
Method for determining the filter current limit of an electrostatic filter
The automatic recording of the current-voltage characteristic of an electrostatic filter in which the characteristic obtained upon stepwise variation of the control is displayed to the operating...
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4160202 |
Analogue automatic voltage controller
A control circuit for an electrostatic precipitator, in which an analogue voltage indicative of the desired precipitator electrode potential is stored and periodically increased in the absence of...
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3641740 |
PULSE-OPERATED ELECTROSTATIC PRECIPITATOR
An electrostatic precipitator in which the discharge electrodes thereof receive electrical pulses from a power supply. The power supply includes a source of DC (direct current) energy which feeds,...
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3049848 |
Electrostatic precipitator circuits
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3039252 |
Electrical precipitator power system
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2935155 |
Apparatus for controlling electrical precipitators
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2907403 |
Apparatus for controlling the operation of electrical precipitators
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