| 摘要 |
FIELD: physics.SUBSTANCE: invention relates to plasma engineering and can be used to heat different gases and as an igniter for a powdered-coal burner. A high-voltage power supply which continuously generates high-frequency alternating voltage is connected to a first conical electrode and a second cylindrical electrode which is divided into two - igniting and output cylinder. The second electrodes are mounted coaxially in a dielectric cylinder, which is the housing of the device, by two centring dielectric washers with openings which are parallel to the main axis of the device for allowing passage of air. The first conical electrode is mounted coaxially inside the igniting cylinder of the second electrode through a stream-forming dielectric washer. The stream-forming washer has openings at an angle to the main axis of the device for swirling the air stream passing through the washer.EFFECT: high efficiency of the device and longer life of the working electrodes.3 dwg |
