基于摩擦纳米发电机的两相流气泡速度传感器的研制Development of two-phase flow bubble velocity sensor based on triboelectric nanogenerator
李柯良;牟泽霖;吴川;樊辰星;王爱艳;
摘要(Abstract):
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。
关键词(KeyWords): 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
基金项目(Foundation): 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)
作者(Author): 李柯良;牟泽霖;吴川;樊辰星;王爱艳;
Email:
DOI: 10.16652/j.issn.1004-373x.2021.07.031
参考文献(References):
- [1] GONG J,ZHAO J K. Numerical simulation of gas-hydrate slurry two phase flow[C]//Sixth International Conference on Gas Hydrates. Vancouver,BC,Canada:[s.n.],2008:6-10.
- [2] LI L,XU H L,YANG F Q. Three-phase flow of submarine gas hydrate pipe transport[J]. Journal of central south university,2015,22(9):3650-3656.
- [3] FIROUZI M,TOWLER B,RUFFORD T E. Developing new mechanistic models for predicting pressure gradient in coal bed methane wells[J]. Journal of natural gas science and engineering,2016,33:961-972.
- [4] WU C,WEN G J,HAN L,et al. Research on the conductivitybased detection principles of bubbles in two-phase flows and the design of a bubble sensor for CBM wells[EB/OL].[2016-09-17].https://www.mdpi.com/1424.8220/16/9/1520/htm.
- [5] JAHEDSARAVANI A,MASSINAEI M,MARHABAN M H.An image segmentation algorithm for measurement of flotation froth bubble size distributions[J]. Measurement,2017,111:29-37.
- [6]张月皓,董峰,许聪,等.气液两相流含气率超声测试方法研究[J].仪器仪表学报,2014,35(9):2094-2101.
- [7] ZHANG Ronghua,WANG Qi,WANG Huaxiang,et al. Data fusion in dual-mode tomography for imaging oil-gas two-phase flow[J]. Flow measurement and instrumentation, 2014, 37(6):1-11.
- [8] WANG Z L. Toward self-powered sensor networks[J]. Nano today,2010,5(6):512-514.
- [9] XU S,QIN Y,XU C,et al. Self-powered nanowire devices[J].Nature nanotechnology,2010,5(5):366-374.
- [10]王中林,林龙,陈俊,等.摩擦纳米发电机[M].北京:科学出版社,2017.