| 摘要 |
A gas treatment cell 1 for use in a gas treatment apparatus, for example for treating air to generate ozone comprises a tube 2 defining a multiplicity of apertures 3 along its length such that a gas pathway 8 is defined through the tube and through the apertures. A coil of wire 4 is located around or within the tube in close proximity to said apertures. The wire forms one of a pair of electrodes between which a corona discharge is generated when a potential difference is applied to them such that, in use, gas passing through the apertures as it moves into or out of the tube passes around the wire and thereby through said corona discharge. A gas treatment apparatus (25, fig. 6) comprising such a cell (1; 15) or a plurality of them is disclosed. |
