Research on accuracy improvement of steam flow measurement under variable working conditions and the application

SHI Tianqi; LIU Xinlong

doi:10.19666/j.rlfd.202207129

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Research on accuracy improvement of steam flow measurement under variable working conditions and the application

Thermal Power Generation Vol. 51, Issue 12, Pages: 126-130(2022)

更新时间：2025-09-28

- Research on accuracy improvement of steam flow measurement under variable working conditions and the application
- 作者机构：
  
  1. 陕西榆林能源集团杨伙盘煤电有限公司
  2. 西北电力设计院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202207129
  CLC： TB937
- Published：2022
- 稿件说明：
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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.

摘要

针对差压式蒸汽流量测量仪在变工况条件下计算误差大的问题开展相关研究，指出在变工况运行时，该类型测量仪表的各项修正计算系数变化较大，现有测量修正方案的固定修正系数不能满足工程需求。结合理论计算及工程应用经验，针对变工况下各类修正系数的优化计算和逻辑组态，给出了一种简化的适合工程应用的修正计算方法，有效提升了差压式蒸汽流量测量仪表在变工况运行状态下的测量精度，满足工程实际需求。

Abstract

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.

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