| Wang Shuo,Wu Shijun,Yang Canjun. 2020. The pressure compensation technology of deep-sea sampling based on the real gas state equation. Acta Oceanologica Sinica, 39(8):88－95 |
| The pressure compensation technology of deep-sea sampling based on the real gas state equation |
| 基于实际气体状态方程的深海采样压力补偿技术 |
| Received:July 12, 2019 |
| DOI：10.1007/s13131-020-1637-6 |
| Key words:gas state equation deep-sea sampler pressure compensation sample pressure sample volume |
| 中文关键词: 气体状态方程 深海采样器 压力补偿技术 采样压力 采样容积 |
| 基金项目:The National Key Research and Development Program of China under contract Nos 2018YFC0310600 and 2016YFC0300500. |
| Author Name | Affiliation | E-mail | | Wang Shuo | State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China | | | Wu Shijun | State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China | bluewater@zju.edu.cn | | Yang Canjun | State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China | |
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| Abstract: |
| Compressed gas is usually used for the pressure compensation of the deep-sea pressure-maintaining sampler. The pressure and volume of the recovered fluid sample are highly related to the precharged gas. To better understand the behavior of the gas under high pressure, we present a new real gas state equation based on the compression factor Z which was derived from experimental data. Then theoretical calculation method of the pressure and volume of the sample was introduced based on this empirical gas state equation. Finally, the proposed calculation method was well verified by the high-pressure vessel experiment of the sampler under 115 MPa. |
| 中文摘要: |
| 压缩气体通常用于深海压力保持采样器的压力补偿。回收的流体样品的压力和体积与预充气体高度相关。为了更好地理解高压下气体的行为，我们提出了一个新的基于压缩因子Z的实际气体状态方程，该方程是从实验数据得出的。然后基于该经验气态方程引入了样品压力和体积的理论计算方法。最后，通过采样器进行了在115MPa下的高压模拟采样实验，很好地验证了本文所提出的计算理论。 |
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