| 摘要 |
<p>PURPOSE:To restrict an abnormal increasing of a catalyst temperature of an excessive increasing of a pressure loss at the catalyst by a method wherein a temperature of gas sent from an upstream side of a catalyst inlet to the catalyst is detected and an amount of air fed into a combustion device through an air supplying port in response to the detected gas temperature is controlled. CONSTITUTION:An inlet gas temperature range (a preferable temperature range) indicating that a stable catalyst combustion is carried out is set at an-amount-of-air controller 24 is advance. When an inlet temperature of a catalyst 6 displaced from the preferable temperature range is sensed with a signal from a temperature sensor 22, a signal for decreasing or increasing a degree of opening of a solenoid valve 23 is adjusted to be outputted. At a gas turbine combustion device, both fuel and air A1 are supplied from each of a fuel supplying port 5 and an air supplying port 4, respectively, when started. Fuel gas of mixed fuel and air A1 is ignited by a spark plug 1, its flame is held by a swirlling device 11, its stable state is kept and its temperature is increased to a certain degree. An increased temperature caused by this combustion caused a temperature of gas to be increased up to a working temperature of the catalyst 6 and then a smooth catalyst combustion is performed.</p> |
