Analysis and Optimization of Flow Field in an Axial Flow Lead-Bismuth Pump

Zhang Shuanglei; Li Liangxing; Song Liming

doi:10.13832/j.jnpe.2022.03.0158

Volume 43 Issue 3

Jun. 2022

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Zhang Shuanglei, Li Liangxing, Song Liming. Analysis and Optimization of Flow Field in an Axial Flow Lead-Bismuth Pump[J]. Nuclear Power Engineering, 2022, 43(3): 158-164. doi: 10.13832/j.jnpe.2022.03.0158

Citation:

Zhang Shuanglei, Li Liangxing, Song Liming. Analysis and Optimization of Flow Field in an Axial Flow Lead-Bismuth Pump[J]. Nuclear Power Engineering, 2022, 43(3): 158-164. doi: 10.13832/j.jnpe.2022.03.0158

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Analysis and Optimization of Flow Field in an Axial Flow Lead-Bismuth Pump

doi: 10.13832/j.jnpe.2022.03.0158

Zhang Shuanglei^{1, 2
,},
Li Liangxing^{1, 2
,
,},
Song Liming²

1.
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, 710049, China
2.
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, 710049, China

Received Date: 2021-05-13
Rev Recd Date: 2021-08-02
Publish Date: 2022-06-07

Abstract

Abstract

The lead-bismuth main pump is the key conveying equipment of the primary circuit in a lead- bismuth cooled fast reactor, and its safe operation is essential to the safety of the lead- bismuth cooled fast reactor. The flow characteristics of liquid lead-bismuth alloy in the pump have an important impact on the long-term safe operation of the pump. In order to study the flow field in an axial flow lead-bismuth pump, the impeller model of the main pump is constructed through Workbench/BladeGen software, and the flow field in the pump is simulated and analyzed in ANSYS CFX software. According to the numerical simulation results, the thickness of the guide vane is improved, and the wing outlet angle of the moving vane is optimized, thereby improving the flow field in the pump. The research results show that too fast angle change near the vane pattern outlet of lead- bismuth pump will lead to uneven vane pressure distribution and local high pressure, which may lead to more serious erosion. After optimizing the thickness of the guide vanes and the outlet flow angle of the moving vane, the overall trace of the flow field in the pump is relatively stable and the flow velocity of lead- bismuth at the exit of the guide vane maintained at about 1.8 m/s.
- Lead-bismuth cooled fast reactor,
- Lead-bismuth main pump,
- Flow field optimization,
- Numerical simulation

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References(21)

References

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