| 摘要 |
PROBLEM TO BE SOLVED: To easily evaluate combustion states of a high-temperature combustion area and a low-temperature combustion area.SOLUTION: Each of a plurality of injection elements 11 arranged on a substrate 10 of an injector 1 includes: a combustion oxidant injection nozzle 13 and a combustion fuel injection nozzle 15 for different type collision for injecting a fuel and an oxidant to a combustion portion CP in front of a substrate 10, respectively; and a dilution injection nozzle 17 injecting a dilution fuel to a dilution portion DP in front of the combustion portion CP. In a high-temperature area HA near the combustion portion CP, the fuel and the oxidant are fired at a mixture ratio in an appropriate range for ensuring ignition performance and flame holding performance, and combustion gas thereby generated is diluted with the dilution fuel or a dilution oxidant. In a low-temperature area LA near a pipe connection part 4, the combustion gas is fired in a low mixture ratio (fuel-rich) state or a very high mixture ratio (oxygen-rich) state, so that the combustion gas can be made lower in temperature and uniform. |
