| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reducing gas generating device capable of accurately controlling generation of reducing gas with a simple structure and a SCR (Selective Catalytic Reduction) system using the same. <P>SOLUTION: A solid reducer SCR system1 comprises; a sealed container 100; a solid reducer storage part 130 storing solid reducer 20 of a fixed cross section shape; a reducing gas generating device 10 including a heat generating surface 141 touching a whole area of a lower surface of solid reducer 20 pressed by the solid reducer pressing device 120 and having heat generation thereof controlled by an electronic control device 30, evenly heating a lower surface of the solid reducer 20, and stably generating reducing gas; a SCR catalyst 40 arranged in a combustion exhaust gas channel 400; gas concentration sensor 401, 402 provided in an upstream side and a downstream side of the SCR catalyst 40 correcting reducing gas lead-in quantity; a control valve 161 opening and closing a reducing gas lead-out hole 112; and a compression pump 160 amplifying lead-out pressure of the reducing gas. <P>COPYRIGHT: (C)2009,JPO&INPIT |
