| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an air cleaner by which a large quantity of air can be easily treated and high removal efficiency of harmful gases such as nitrogen oxides (NOx) in air can be attained without increasing size of an apparatus. <P>SOLUTION: An exciting luminous tube is installed concentrically with a cylindrical body on a central axis of the cylindrical body to form the air cleaner by a diffusion scrubber method which has structure for ventilating contaminated air containing harmful gases and particles from one end face side entrance of the cylindrical body to another end face side exit thereof. Slit forming plates which become clearances for ventilating the contaminated air and have ventilation flow passage effective length are arranged in the radial direction from a central axis of the cylindrical body in a radial direction in a space between an outer peripheral surface of the exciting luminous tube and an inner peripheral surface of the cylindrical body. A photocatalyst layer is formed on a surface of the plate, the harmful gas separated from the particles due to difference of diffusion coefficients is diffused in the photocatalyst layer and further the photocatalyst layer is irradiated with excitation light from a gap at an exciting luminous tube side end part of the slit and/or a gap at a cylindrical body side end part. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
