| 摘要 |
PURPOSE:To improve maintenability and reliability, by computing the flow rate of exhausted gas based on the average flow speed in a measuring section, the cross sectional area of a flue, the temperature of the exhausted gas, pressure, and the like. CONSTITUTION:Gas-concentration analyzing meters 52a and 52b are provided at the output port of a radiating part 16 and the input port of an induced draft fan 14. Output signals fa(t) and fa(t+gamma) of the analyzing meters 52a and 52b are inputted to correlation speed meter 58. Based on the result of the correlation computation, various computations, e.g., multiplication of the cross sectional area of a flue for exhausted gas, temperature correction, pressure correcting computation, and the like, are performed by an operator 60. A flow rate Qn of the exhausted gas, which is converted into a standard state, is outputted to a recorder 62 and the like. |
