Flow measurement method and device, computer device and storage medium

CN115452062BActive Publication Date: 2026-05-26CHINA GENERAL NUCLEAR POWER OPERATION +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA GENERAL NUCLEAR POWER OPERATION
Filing Date
2022-09-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies suffer from inaccurate measurement results in liquid flow measurement, especially in nuclear reactor coolant replenishment systems, which affects the normal operation of production activities.

Method used

Zero-point calibration is performed by adjusting the flow pipe to a first state where the liquid is full and stationary, and the zero-point calibration parameters are obtained. Then, the flow pipe is adjusted to a second state where the liquid is flowing to measure the instantaneous flow velocity. Combined with full-scale coefficient correction, the accuracy of flow measurement is achieved.

Benefits of technology

It enables accurate measurement of flow rate in the nuclear reactor coolant replenishment system, ensuring the accuracy and stability of the measurement results and meeting the requirements for safe operation.

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Abstract

This application relates to a flow measurement method, apparatus, computer equipment, storage medium, and computer program product. The method includes: when the error of the flow measurement result exceeds the allowable error range, adjusting the flow measurement pipeline to a first state where it is filled with liquid and the liquid is stationary; performing zero-point calibration on the flow measurement parameters based on the first state to obtain zero-point calibration parameters, so that the flow velocity measurement result obtained based on the zero-point calibration parameters in the first state is zero; adjusting the flow pipeline to a second state where it is filled with liquid and the liquid is flowing, and obtaining the instantaneous flow velocity measurement result in the second state; obtaining the full-scale coefficient in the flow measurement parameters, and obtaining a corrected full-scale coefficient based on the instantaneous flow velocity measurement result and the cumulative flow of the liquid during the sampling period; and measuring the flow rate of the liquid in the pipeline based on the corrected full-scale coefficient and the zero-point calibration parameters to obtain the measurement result. This method can achieve accurate measurement of the flow rate of fluid in a pipeline.
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