| 摘要 |
PURPOSE:To execute the temperature measurement with high accuracy and to apply it to monitoring for abnormality of a boiler by calculating a temperature by using an exact temperature constant. CONSTITUTION:A sampling tube 24 of a oxygen densitometer 25 is inserted into a flue 3, oxygen concentration information is sent to a gas composition calculator 27, a gas composition is calculated, and subsequently, a temperature constant is calculated, and supplied to a temperature calculator 28. Next, temperature is calculated from a propagation time and the temperature constant, and displayed by an indicator 29. |
