首页|Online fully-automatic high precision steam dryness monitoring system
Online fully-automatic high precision steam dryness monitoring system
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NSTL
Elsevier
? 2021 Elsevier LtdSteam dryness monitoring is significant for high-efficiency steam turbines used in power generation and boilers. Although steam dryness is a crucial process variable, Mohr titration involves expensive and complex calorimeter equipment and considerable time and effort. This paper proposes an online fully-automatic high precision steam dryness monitoring system. The automatic determination of titration endpoint using the optical method, vital steps for this system, was discussed. The design shows high repeatability and precision (about 1% at 300 mg/L). The system also has high linearity, and the R2 is 0.9999. The limit of the detection is about 15 mg/L. The measuring time is about 2 min for one measurement, which is much faster than manual titration. Thirty-eight water samples collected were tested, showing an excellent anti-interference characteristic.
Chloride determinationMohr titrationSteam dryness
Zhang J.、Ci F.、Ding G.、Guo X.、Chen Y.、Wang Y.
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School of Mechatronics Engineering Harbin Institute of Technology
School of Mechatronical Engineering Beijing Institute of Technology
Beijing Engineering Research Center of Industrial Spectrum Imaging School of Automation and Electrical Engineering University of Science and Technology Beijing
College of Information Science and Technology Beijing University of Chemical Technology
NSTL
Elsevier
