摘要
两相流的气泡速度对于天然气水合物的开采至关重要,有必要进行测量,故基于摩擦纳米发电机研制了一种具有自供电功能的两相流气泡速度探测传感器。传感器基于连杆机构进行设计,巧妙地将气泡上升过程转换为传感器的摩擦起电过程,使得摩擦起电输出信号变化规律与气泡速度相对应,从而实现气泡速度的测量。传感器设计及加工完成后进行了室内试验,结果显示:当气泡速度≤0.35 m/s,且相邻气泡间距≥0.03 m时,传感器可正常工作,测量误差<5%;反之,则不适用。与现有方法相比,所设计的传感器为自供电传感器,无需外接电源便可工作,将更加适应深水的实际工况环境。
It is necessary to measure the bubble velocity of the two-phase flow because its bubble velocity is critical to the mining process of natural gas hydrate(NGH).In view of this,a self-powered two-phase flow bubble velocity detection sensor based on triboelectric nanogenerator is developed.The sensor is designed on the basis of the linkage mechanism and can convert the rising process of the bubble to the triboelectrification process of the sensor,which makes the change rules of the triboelectric output signals corresponded to the bubble velocity,so as to achieve the detection of the bubble velocity.After the design and process of the sensor are finished,indoor tests were carried out.The results show that,when the bubble velocity is less than 0.35 m/s and the adjacent bubble spacing is more than 0.03 m,the sensor can work normally with measurement error less than 5%;otherwise,the sensor is inapplicable.In comparison with the existing methods,the designed sensor is a self-powered one,so it can work without an external power supply.Therefore,it will undoubtedly be more suitable for the actual working environment of deep water.
作者
李柯良
牟泽霖
吴川
樊辰星
王爱艳
LI Keliang;MU Zelin;WU Chuan;FAN Chenxing;WANG Aiyan(Guangzhou Marine Geological Survey,Guangzhou 510075,China;Key Laboratory of Marine Mineral Resources,Ministry of Natural Resources,Guangzhou 510075,China;School of Mechanical Engineering and Electronic Information,China University of Geosciences,Wuhan 430074,China)
出处
《现代电子技术》
2021年第7期158-161,共4页
Modern Electronics Technique
基金
自然资源部海底矿产资源重点实验室开放基金(KLMMR-2018-B-02)
中国博士后基金(2019M650237)。
关键词
传感器
两相流
气泡间距
气泡速度
摩擦纳米发电机
深水
天然气水合物
sensor
two-phase flow
bubble spacing
bubble velocity
triboelectric nanogenerator
deep water
natural gas hydrate
