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The high temperature gas cooled reactor (HTR) utilizes helium as the coolant, where the accuracy of helium flow measurement in the primary loop is critical for reactor power control and safe operation. This paper presents the measurement principles of helium flow in the primary loop of HTR, describes the calibration method through thermal balance tests, analyzes factors affecting the accuracy of flow measurement results, and provides references for troubleshooting flow measurement instruments in the primary loop.

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Application Introduction and Measurement Difference Analysis of Bend Flow Meter in Helium Flow Measurement of High Temperature Gas Cooled Reactor Primary Loop

  • 会议论文

  • 发表日期：

    2026年

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  • Zhongshu Zhang,
  • Lei Jiang,
  • Baokun Liu,
  • Zengtian Ru,
  • Feng Wang,
  • Feng Jiang,
  • Na Song

摘要

The high temperature gas cooled reactor (HTR) utilizes helium as the coolant, where the accuracy of helium flow measurement in the primary loop is critical for reactor power control and safe operation. This paper presents the measurement principles of helium flow in the primary loop of HTR, describes the calibration method through thermal balance tests, analyzes factors affecting the accuracy of flow measurement results, and provides references for troubleshooting flow measurement instruments in the primary loop.