广东工业大学学报 ›› 2015, Vol. 32 ›› Issue (04): 72-76.doi: 10.3969/j.issn.1007-7162.2015.04.013

• 综合研究 • 上一篇    下一篇

海底冷泉渗漏气泡-海水两相介质均匀化方法和实验研究

张浩1, 龙建军1,2 , 邸鹏飞2,3   

  1. 1.广东工业大学 机电工程学院，广东 广州 510006;2.中国科学院 三亚深海科学与工程研究所，海南 三亚 572000；3.中国科学院南海海洋研究所 中国科学院边缘海地质重点实验室, 广东 广州 510301
  • 收稿日期:2014-12-18 出版日期:2015-12-04 发布日期:2015-12-04
  • 作者简介:张浩（1988-），男，硕士研究生，主要研究方向为机电液智能控制与检测.
  • 基金资助:

    国家自然科学基金资助项目（41176034，41476028，11174299）；中国科学院三亚深海科学与工程研究所知识创新工程领域前沿资助项目（SIDSSE201208）

Method and Experiment of Homogenizing Bubble-seawater Biphase Media at Cool Seeps on Seafloor

Zhang Hao1, Long Jian-jun1,2, Di Peng-fei2,3   

  1. 1. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China;2. Sanya Institute of Deep Sea Science and Engineering，Chinese Academy of Sciences，Sanya 572000，China；3．Key Laboratory of Marginal Sea Geology，South China Sea Institute of Oceanology of Chinese Academy of Sciences，Guangzhou 510301，China
  • Received:2014-12-18 Online:2015-12-04 Published:2015-12-04

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摘要： 针对海底冷泉天然气渗漏流量声波测量需要介质声阻抗均匀的要求，提出了气泡四元破碎方法，设计了一种气泡-海水两相介质均匀化装置.气泡-海水两相介质均匀化装置的功能包括两个部分：气泡破碎和气泡空间分布均匀化，其作用先将大气泡破碎成小气泡，然后再对小气泡的空间分布均匀化.实验结果表明：气泡-海水两相介质均匀化装置能够将直径大于15 mm的气泡破碎为当量直径为4～5 mm且空间分布均匀；另外气泡的流速基本在0.3～0.4 m/s内；达到天然气渗漏流量声波测量的要求.

关键词: 声波测量； 声阻抗均匀； 气泡破碎； 海底冷泉天然气

Abstract: As the method of measuring bubble flow from cool seeps on seafloor using acoustic transmission needs the media of homogeneity of acoustic impedance, the way of quaternary crushing bubbles is proposed and the biphase media of bubble-seawater homogenization device is designed. It includes two parts: bubble collapse and uniform distribution. The function of the biphase media of bubble-seawater homogenization device is that it can break big bubbles into small bubbles and let the small bubbles distribute evenly. The results of experiment show that the biphase media of bubble-seawater homogenization device can break the diameter of bubbles greater than 15 mm into 4 ~ 5 mm and distribute them uniformly. The rising velocity of bubble is 0.3~0.4 m/s, which can satisfy the requirement of the method of measuring bubble flow from cool seeps on seafloor using acoustic transmission.

Key words: acoustic measurement; homogeneity of acoustic impedance; bubble collapse; bubble flow from cool seeps on seafloor

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