A New Sensing Structure for Monitoring Sand in High-Pressure Water Hydraulic Based on Pressure Compensation
首发时间:2020-10-23
Abstract:Solid particle erosion occurs in many industries including water, oil, and gas. The erosion in sand-fluid flow is a complex phenomenon. The erosion of hydraulic machinery is mainly related to water flow intensity, sediment concentration, and sediment particles. The sand in the hydraulic system needs to is monitored in order to take appropriate measures to reduce particle erosion. In this paper, a new pressure compensating flexible senor was designed to detect the sand carried by fluid flow in the condition of high-pressure. The relationship between the strain and the resistance of the crack sensor on the flexible sensing structure were described, and then impacting characteristics of particles on the designed sensor was presented. In addition, in order to reveal the advantage of the designed sensor with pressure compensation, we give a comparative simulation analysis. The above method is suitable for the detection of solid particles in a hydraulic system, which laid a foundation for the monitoring of particles in complex multiphase flow.
keywords: Sand monitoring Flexible sensor Pressure compensation Solid-water flow
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基于压力补偿的高压砂量检测传感结构
摘要:固体颗粒侵蚀发生在许多行业,包括水、石油和天然气。砂液流动中的侵蚀是一种复杂的现象。水力机械的侵蚀主要与水流强度、含沙量和泥沙颗粒有关。需要对液压系统中的砂粒进行监测,以采取适当的措施减少颗粒的侵蚀。本文设计了一种新型的压力补偿柔性传感器,用于高压条件下流体携砂检测。阐述了裂纹传感器在柔性传感结构上的应变与电阻的关系,给出了颗粒对传感器的冲击特性。此外,为了揭示所设计的压力补偿传感器的优点,我们还对其进行了仿真对比分析。上述方法适用于液压系统中固体颗粒的检测,为复杂多相流中颗粒的监测奠定了基础。
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