| 摘要 |
The invention relates to a device for rapping electrodes (6), preferably collecting electrodes, in a high voltage supplied electrostatic precipitator, which device comprises at least one piezo electric element (2) adapted to supply a rapping impact to at least one electrode, said piezo electric element being connected to a voltage source enabling it to supply an impact of a predetermined level and frequency. The invention further relates to an electrostatic precipitator comprising a housing, a suspension arrangement mounted in the housing, discharge and collecting electrodes suspended in said arrangement and at least one of the above mentioned devices, which device is mounted in the precipitator in a manner so as to apply impact or vibration force to at least one electrode (6) when a voltage diffential is applied from the voltage field, and still further to a method of cleaning electrodes in such an electrostatic precipitator by applying a voltage differential to each piezo electric element, said voltage differential being controllable from the area outside the electrostatic precipitator. <IMAGE> |
