SHI Tianqi, LIU Xinlong. Research on accuracy improvement of steam flow measurement under variable working conditions and the application[J]. Thermal power generation, 2022, 51(12): 126-130.
DOI:
SHI Tianqi, LIU Xinlong. Research on accuracy improvement of steam flow measurement under variable working conditions and the application[J]. Thermal power generation, 2022, 51(12): 126-130. DOI: 10.19666/j.rlfd.202207129.
Research on accuracy improvement of steam flow measurement under variable working conditions and the application
The differential pressure type steam flow measurement instrument has large calculation error under variable working conditions. To solve this problem
relevant analysis and research is carried out
and it points out that
under variable working conditions
the revised calculating coefficients of the differential pressure type steam flow measurement instrument change greatly
and the fixed correction coefficients of the existing measurement correction scheme cannot meet the engineering requirements
so it is necessary to re-calculate iteratively. Combined with theoretical calculation and engineering application experience
in view of the optimization calculation and logic configuration of various correction coefficients under variable working conditions
a simplified modified calculation method which is suitable for engineering application is proposed
which effectively improves the measuring accuracy of the differential pressure type steam flow measuring instrument under variable operating conditions and meets the practical requirements of engineering.