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Experimental study on the performance of a vertical separator with built‑in frustum electrode
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Chao SHANG1, Wei LI2, 3, Yi SHI2, 3, Haibo XU1, Ming ZHANG1, Weizheng AN1, Jiaqing CHEN2, 3, 4
Fluid Machinery | 2026, 54(6) : 9 - 16
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Fluid Machinery | 2026, 54(6): 9-16
Experimental study on the performance of a vertical separator with built‑in frustum electrode
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Chao SHANG1, Wei LI2, 3, Yi SHI2, 3, Haibo XU1, Ming ZHANG1, Weizheng AN1, Jiaqing CHEN2, 3, 4
Affiliations
  • 1Engineering Research & Design Department，CNOOC Research Institute Co.，Ltd.，Beijing 100027，China
  • 2School of Mechanical Engineering，Beijing Institute of Petrochemical Technology，Beijing 102617，China
  • 3Beijing Key Laboratory of Key Technologies and Equipment for Deepwater Oil and Gas Pipelines，Beijing 102617，China
  • 4School of Mechanical and Material Engineering，North China University of Technology，Beijing 100144，China
Published: 2026-06-30 doi: 10.3969/j.issn.1005-0329.2026.06.002
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Aiming at the disadvantages of traditional crude oil treatment processes，including large floor area，low efficiency and long treatment duration of gravity settling tanks，a vertical separator equipped with built‑in frustum electrodes was developed in this study.A high‑frequency and high‑voltage pulsed alternating current（AC） power supply was adopted，and the water content at the oil outlet was selected as the evaluation index for separation performance.Demulsification and dehydration experiments of the novel vertical separator with built‑in frustum electrodes were carried out to investigate the influences of split ratio，inlet water content，inlet flow rate，and electric field parameters（voltage，frequency，and electric field action time） on the separation performance.The experimental results indicate that there exists an optimal combination of electric field parameters for the vertical separator.Under the operating conditions of an inlet water content of 30%，an inlet flow rate of 100 mL/min and a split ratio of 0.3，the optimal electric field action time，electric field voltage and electric field frequency are 16.5 min，1.85 kV and 3.2 kHz，respectively，achieving a minimum water content of 0.79% at the oil outlet.The influencing degrees of various factors on the separator performance follow the order of electric field voltage>electric field frequency>electric field action time.This study provides a theoretical reference and technical guidance for the research，development and engineering application of high‑efficiency vertical separators for the dehydration of crude oil emulsions.

vertical oil‑water separator  /  high‑frequency/high‑voltage pulsed AC power supply  /  electric field demulsification  /  electric field voltage
尚超, 李威, 石熠, 徐海波, 张明, 安维峥, 陈家庆. 内置锥台电极立式分离器性能试验研究. 流体机械, 2026 , 54 (6) : 9 -16 . DOI: 10.3969/j.issn.1005-0329.2026.06.002
Chao SHANG, Wei LI, Yi SHI, Haibo XU, Ming ZHANG, Weizheng AN, Jiaqing CHEN. Experimental study on the performance of a vertical separator with built‑in frustum electrode[J]. Fluid Machinery, 2026 , 54 (6) : 9 -16 . DOI: 10.3969/j.issn.1005-0329.2026.06.002
Appendix
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Year 2026 volume 54 Issue 6
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Article Info
doi: 10.3969/j.issn.1005-0329.2026.06.002
  • Receive Date：2025-12-02
  • Online Date：2026-10-22
  • Published：2026-06-30
Article Data
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History
  • Received：2025-12-02
  • Revised：2026-06-07
Affiliations
    1Engineering Research & Design Department，CNOOC Research Institute Co.，Ltd.，Beijing 100027，China
    2School of Mechanical Engineering，Beijing Institute of Petrochemical Technology，Beijing 102617，China
    3Beijing Key Laboratory of Key Technologies and Equipment for Deepwater Oil and Gas Pipelines，Beijing 102617，China
    4School of Mechanical and Material Engineering，North China University of Technology，Beijing 100144，China
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https://castjournals.cast.org.cn/joweb/ltjx/EN/10.3969/j.issn.1005-0329.2026.06.002
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表12种不同金属材料的力学参数
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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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