PROBLEM TO BE SOLVED: To provide an air purification system achieving further reduction of low concentration of pollutants in the air by solving the problem in that it is necessary to reduce the process air flow rate for noise reduction depending on the installation environment, and such a reduction in the air flow rate reduces the flow rate of the contaminated air in a reaction tube, resulting in a reduction in decomposition efficiency of contaminants.SOLUTION: There is provided an air purification system that achieves a mechanism for preventing a reduction in the decomposition efficiency of the contaminated air by maintaining decomposition reaction characteristics in a reaction tube inside the system even when the capacity of a fan for introducing the contaminated air into the reaction tube is lowered to reduce air flow rate. The air purification system can maintain the performance regardless of the process air flow rate by incorporating a gas flow passage cross-sectional area adjusting function for achieving the above in the system and causing the function to be operated according to air flow rate control.SELECTED DRAWING: Figure 9COPYRIGHT: (C)2016,JPO&INPIT【課題】空気中の低濃度の汚染物質を更に低下させることを目的とする本装置であるが、設置環境によっては、騒音低減の為に処理風量を下げる必要があり、風量低下に伴って、反応管内の汚染空気の流速が低下する事で、汚染物質の分解効率が低下する事があった。【解決手段】反応管に汚染空気を導入するためのファンの能力を下げて風量を低減した場合でも、装置内部の反応管における分解反応特性を維持させて、汚染空気の分解効率の低下を防止する機構を実現する。実現のための気体流路断面積調整機能を、装置内部に組み込み、風量調整に合わせて機能させる事で、処理風量に関係なく性能を維持できる空気浄化装置を提供できる。【選択図】 図9
