通过基于摩擦纳米发电机的位移电流进行自供电多相流检测,Advanced Energy Materials

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通过基于摩擦纳米发电机的位移电流进行自供电多相流检测
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2024-02-14 , DOI: 10.1002/aenm.202304331
Wenlong Ma _{1,

2,

3} , Peng Wang ₃ , Baofeng Zhang _{1,

2,

4} , Xinyuna Li _{1,

2} , Yikui Gao _{1,

2} , Zhihao Zhao _{1,

2} , Di Liu _{1,

2} , Chengguo Li _{3,

5} , Jie Wang _{1,

2}

Affiliation

复杂多相流的精确测量对于石油和化工装置的安全和高效运行至关重要。然而，由于提供稳定供电的成本较高，现有的多相流检测技术不适用于沙漠或深海等偏远地区的管道。本文提出了一种自供电多相流量传感器，由基于液体驱动的摩擦纳米发电机（TENG）的信号发生器、环形发射器和串型接收器组成。发射器和接收器之间的位移电流的理论模型意味着接收到的电流信号可以准确地反映接收器的润湿状态，并通过实验（精度高于 97%）和仿真研究相结合进行验证。结合定量分析算法，开发了具有多个接收器测量点的多相流检测系统，可精确监测各种流动参数，包括段塞频率（一点）、段塞长度（两点）和流型（四点），通过自发的高速摄像机记录水-空气流来验证。目前的工作提供了一种范式转变的方法来开发一种自供电、廉价且准确的技术来检测远程工业设施的多相流。

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A Self-Powered Multiphase Flow Detection Through Triboelectric Nanogenerator-Based Displacement Current

Accurate measurement of complicated multiphase flow is crucial to the safety and efficiency of petroleum and chemical industrial facilities. However, the existing multiphase flow detection techniques are not applicable to pipelines in remote regions including deserts or deep seas, due to the high cost of providing a stable power supply. Herein, a self-powered multiphase flow sensor, composed of a liquid-driven triboelectric nanogenerator (TENG) -based signal generator, a ring-type transmitter, and a string-type receiver, is proposed. Theoretical modeling of displacement current between transmitter and receiver implies that the received current signal can accurately reflect the wetting state of the receiver, validated by a combined experimental (accuracy above 97%) and simulation study. Coupling with a quantitative analysis algorithm, a multiphase flow detection system with numerous receiver measurement points is developed to precisely monitor various flow parameters, including slug frequency (one point), slug length (two points), and flow pattern (four points), which is verified by spontaneous high-speed camera recordings of water–air flow. The present work provides a paradigm-shift way to develop a self-powered, inexpensive, and accurate technique to detect multiphase flow at remote industrial facilities.

更新日期：2024-02-14

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