| 摘要 |
FIELD: medical engineering. ^ SUBSTANCE: device has two-staged ionizing element having bulk electrode of high-energy ionization stage connected to grounded positive lead of high voltage DC supply source via resistor and low-energy ionization stage composed of active needle electrode having sharp edges of different directions connected to negative lead of the high voltage DC supply source and dielectric screen. Input grid, passive electrode system and output three-dimensional grid are set in bulk electrode body cavity. Low-energy ionization stage is designed as active electrodes system composed of two or more sharp active electrodes equidistantly uniformly spaced on input grid with a step equal to or greater than active electrode length being electrically connected to its external surface. Each active electrode surface is electrically insulated from connection point to sharp end with electric insulation envelope. The sharp end is manufactured from metal having low linear expansion coefficient value and protected with galvanic coating. The input grid is electrically insulated from the bulk electrode body cavity and is connected to negative lead of the high voltage DC supply source via resistor. Sharp ends of the active electrodes are introduced into the bulk electrode body cavity through asset of openings in the input grid and are directed towards output grid along the air ions movement direction. Active electrodes connection points potentials are equalized between each other. Passive electrodes system is mounted on in bulk electrode body electrically insulated from it and in the output grid direction. It consists of two or more passive electrode units mounted on current-conducting base and electrically bound to each other. The passive electrode units has four or more passive electrodes, each passive electrode being manufactured from current-conducting plate shaped as isosceles triangle, electrode surface is protected with galvanic coating. The passive electrodes are electrically connected to each other with triangle bases forming equilateral tetragon or polygon. The tetragon or polygon side forming passive electrodes unit base is less than passive electrode altitude. Passive electrode apices are blunt and their electric potentials are equal to each other. The passive electrode apices directed towards output grid along air ions movement axis. Passive electrode units are uniformly spaced at a distance equal to or greater than passive electrode altitude. The number of passive electrode units is equal to the number of active electrodes belonging to passive electrode system, Their axes of symmetry are superposed. Dielectric screen is set in front of the input grid in insulated air duct tightly connected to the bulk electrode body, remote less than passive electrode altitude and is manufactured as filtering element from air-tight dielectric material. Current-conducting output three-dimensional grid is connected to the high-energy ionization stage bulk electrode body. The bulk electrode body is laminated having external dielectric layers and the internal one is current-conducting and connected to grounded positive lead via resistor having grounded high voltage DC power supply source. ^ EFFECT: enhanced effectiveness of treatment; uniformly distributed in air duct cross-section. ^ 2 dwg |
