Numerical Simulation of Gas-liquid Two-phase Separation in Vortex Separator

Zhang Zekai; Zhang Tingting; Yin Shasha; Yin Junlian; Wang Dezhong

doi:10.13832/j.jnpe.2022.06.0201

Volume 43 Issue 6

Dec. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(6): 201-208

Zhang Zekai, Zhang Tingting, Yin Shasha, Yin Junlian, Wang Dezhong. Numerical Simulation of Gas-liquid Two-phase Separation in Vortex Separator[J]. Nuclear Power Engineering, 2022, 43(6): 201-208. doi: 10.13832/j.jnpe.2022.06.0201

Citation:

Zhang Zekai, Zhang Tingting, Yin Shasha, Yin Junlian, Wang Dezhong. Numerical Simulation of Gas-liquid Two-phase Separation in Vortex Separator[J]. Nuclear Power Engineering, 2022, 43(6): 201-208. doi: 10.13832/j.jnpe.2022.06.0201

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Numerical Simulation of Gas-liquid Two-phase Separation in Vortex Separator

doi: 10.13832/j.jnpe.2022.06.0201

1.
School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
2.
Marine Design & Research Institute of China, Shanghai, 200011, China
3.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2021-11-10
Rev Recd Date: 2022-06-07
Publish Date: 2022-12-14

Abstract

Abstract

For gas-liquid two-phase separation, traditional separators are either too large in volume or low in swirling intensity. So a new type of cyclone separator is proposed. Utilizing the reverse flow of vortex diode to form a high-strength swirling flow, a branch pipe is added above the swirling chamber. For the two-phase flow entering from the tangential inlet, due to the density difference and swirling flow, the gas phase will gather in the center and flow out of the separator from the upper branch pipe due to buoyancy, and the liquid phase will be distributed around the separator from the lower branch pipe due to gravity, thus realizing the separation of the two phases. The separators with different swirling chamber sizes and outlet shapes are calculated by numerical simulation. The simulation results show that under the working condition that the inlet flow is 0.5 t/h and the inlet air content is 1%~5%, the pressure at the control underflow port is the same as that at the inlet, the pressure difference between the overflow port and the inlet is 80~90 kPa, and the separation efficiency of the separator for bubbles with a diameter of 50 μm and 100 μm can be above 90%.
- Gas removal,
- Cyclone separator,
- Vortex diode,
- Numerical simulation

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References(11)

References

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