Apparatus, method, and program

Abstract

To estimate the liquid amount or the dryness degree of a fluid as an index of the quality of steam by an operation according to the state of the fluid.SOLUTION: There is provided a device which includes: a measured value acquisition unit for acquiring a plurality of measured values regarding a fluid; a state determination estimation unit for estimating the state of the fluid on the basis of at least one of the plurality of acquired measured values; a fluid quality estimation unit for estimating at least one of the liquid amount and the dryness degree regarding the fluid from the at least one of the plurality of acquired measured values according to the estimated state of the fluid; and an output unit for outputting at least one of the estimated fluid amount and the estimated dryness degree. The device further includes a selection unit for selecting one of a plurality of operations which corresponds to the estimated state of the fluid. The fluid quality estimation unit estimates at least one of the liquid amount and the dryness degree regarding the fluid from at least one of the plurality of measured values acquired by the selected operation.SELECTED DRAWING: Figure 1

Claims

1. A measurement value acquisition unit that acquires a plurality of measurement values ​​relating to a fluid containing steam, A state determination estimation unit that estimates the state of the fluid based on at least one of the multiple measurements obtained, A fluid quality estimation unit estimates at least one of the liquid volume or dryness of the fluid from at least one of the multiple measured values ​​obtained, depending on the estimated state of the fluid. The system includes an output unit that outputs at least one of the estimated liquid volume or dryness, The amount of liquid refers to the mass occupied by condensed liquid within the moist vapor in the fluid, and the degree of dryness refers to the mass ratio of gaseous vapor to the mass of moist vapor in the fluid. Device.

2. The system further includes a selection unit that selects a calculation corresponding to the estimated fluid state from a plurality of calculations, The fluid quality estimation unit estimates, based on the selected calculation, at least one of the liquid volume or dryness of the fluid from at least one of the multiple measured values ​​obtained. The apparatus according to claim 1.

3. The state determination estimation unit estimates whether the state of the fluid is a laminar flow, a laminar wave flow, or an annular spray flow based on at least one of the multiple measurements obtained. The apparatus according to claim 1.

4. The state determination estimation unit is, Whether the fluid is in the state of wet vapor is determined based on at least one of the multiple measured values ​​obtained. If it is determined that the fluid state is wet vapor, then, based on at least one of the multiple measurements obtained, it is estimated whether the fluid state is a laminar flow, a laminar wave flow, or an annular spray flow. The apparatus according to claim 3.

5. The state determination estimation unit determines that the state of the fluid is not wet vapor when the measured temperature of the fluid exceeds the boiling point of the fluid, which is based on the measured pressure of the fluid obtained by the measured value acquisition unit. The fluid quality estimation unit estimates that the amount of liquid in the fluid is 0 or the dryness is 100% when the state determination estimation unit determines that the state of the fluid is not wet vapor. The apparatus according to claim 4.

6. The state determination estimation unit estimates the state of the fluid based on at least one of the acquired multiple measurement values, using a first model that estimates the state of the fluid from at least one of the multiple measurement values ​​related to the fluid. The apparatus according to claim 1.

7. The selection unit, in accordance with the estimated fluid state, selects a second model corresponding to the estimated fluid state from a plurality of second models that estimate at least one of the liquid volume or dryness of the fluid from at least one of a plurality of measured values ​​of the fluid. The fluid quality estimation unit uses the second model selected by the selection unit to estimate at least one of the liquid volume or dryness of the fluid from at least one of the multiple measured values ​​obtained. The apparatus according to claim 2.

8. The system further includes a learning processing unit that generates a second model for each state of the fluid, which estimates at least one of the liquid volume or dryness of the fluid from at least one of a plurality of measured values ​​of the fluid. The apparatus according to claim 7.

9. The device stores a first model generated by an external learning device for estimating the state of the fluid from at least one of a plurality of measurements relating to the fluid, and a second model generated by an external learning device for estimating at least one of the liquid volume or dryness of the fluid from at least one of the plurality of measurements relating to the fluid, depending on the estimated state of the fluid. The state determination estimation unit uses the first model to estimate the state of the fluid based on at least one of the acquired multiple measurement values. The fluid quality estimation unit uses the second model to estimate at least one of the liquid volume or dryness of the fluid from at least one of the multiple measured values ​​obtained. The apparatus according to claim 1.

10. The measurement value acquisition unit acquires at least one of the following as multiple measurement values ​​related to the fluid: flow velocity, temperature, pressure, viscosity, concentration, density, signal amplitude, or vortex frequency measured for the fluid. The apparatus according to claim 1.

11. The measurement value acquisition unit acquires a plurality of measurement values ​​related to the fluid from the vortex flow meter. The apparatus according to claim 1.

12. The computer acquires multiple measurements regarding the fluid containing steam, The computer estimates the state of the fluid based on at least one of the multiple measurements obtained, The computer estimates, in accordance with the estimated state of the fluid, at least one of the liquid volume or dryness of the fluid from at least one of the multiple measurements obtained, The computer comprises the step of outputting at least one of the estimated liquid volume or dryness, The amount of liquid refers to the mass occupied by condensed liquid within the moist vapor in the fluid, and the degree of dryness refers to the mass ratio of gaseous vapor to the mass of moist vapor in the fluid. method.

13. Computers, A measurement value acquisition unit that acquires multiple measurement values ​​related to a fluid containing steam, A state determination estimation unit that estimates the state of the fluid based on at least one of the multiple measurements obtained, A fluid quality estimation unit estimates at least one of the liquid volume or dryness of the fluid from at least one of the multiple measured values ​​obtained, depending on the estimated state of the fluid. Output unit that outputs at least one of the estimated liquid volume or dryness. To make it function as, The amount of liquid refers to the mass occupied by condensed liquid within the moist vapor in the fluid, and the degree of dryness refers to the mass ratio of gaseous vapor to the mass of moist vapor in the fluid. program.

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