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ELECTRIC DUST COLLECTOR, SAFETY CONTROL APPARATUS OF THE ELECTRIC DUST COLLECTOR, AND METHOD OF CONTROLLING SAFETY OF THE ELECTRIC DUST COLLECTOR
ELECTRIC DUST COLLECTOR, SAFETY CONTROL APPARATUS OF THE ELECTRIC DUST COLLECTOR, AND METHOD OF CONTROLLING SAFETY OF THE ELECTRIC DUST COLLECTOR
PROBLEM TO BE SOLVED: To more exactly determine danger of ignition and to thereafter perform stopping operation of a high voltage generator in optimum timing, by directly monitoring voltage to be applied to a dust collection part.;SOLUTION: The safety control apparatus 6 of the electric dust collector 1 includes: a high voltage generator 4 for applying a high voltage to a charge part 2 and a dust collection part 3; and a lamp circuit 5 that generates a low voltage proportional to a voltage between dust collection electrode plates 31a, 31b constituting the dust collection part 3 and that utilizes the generated low voltage as the driving voltage of an operation lamp 51. The apparatus also includes: a sensor part 7 with the driving voltage of the lamp circuit 5 as input; a timer part 8 connected to the sensor part 7; and a relay part 9 connected to the timer part 8. The apparatus is configured to successively operate the sensor part 7, the timer part 8 and the relay part 9 by using the driving voltage of the operation lamp 51 outputted from the lamp circuit 5 and to finally shut off between the high voltage generator 4 and a power source.;COPYRIGHT: (C)2012,JPO&INPIT
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