Analysis of Liquid Film Characteristics of Deep-groove Reactor Coolant Pump Mechanical Seal

Jin Le; Wang Yan; Cui Huaiming; Zhu Xiangdong; Zhang Chaonan; Mao Yuanfan

doi:10.13832/j.jnpe.2022.05.0203

Volume 43 Issue 5

Oct. 2022

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Jin Le, Wang Yan, Cui Huaiming, Zhu Xiangdong, Zhang Chaonan, Mao Yuanfan. Analysis of Liquid Film Characteristics of Deep-groove Reactor Coolant Pump Mechanical Seal[J]. Nuclear Power Engineering, 2022, 43(5): 203-210. doi: 10.13832/j.jnpe.2022.05.0203

Citation:

Jin Le, Wang Yan, Cui Huaiming, Zhu Xiangdong, Zhang Chaonan, Mao Yuanfan. Analysis of Liquid Film Characteristics of Deep-groove Reactor Coolant Pump Mechanical Seal[J]. Nuclear Power Engineering, 2022, 43(5): 203-210. doi: 10.13832/j.jnpe.2022.05.0203

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Analysis of Liquid Film Characteristics of Deep-groove Reactor Coolant Pump Mechanical Seal

doi: 10.13832/j.jnpe.2022.05.0203

1.
Shanghai Electric-KSB Nuclear Pumps & Valves Co., Ltd., Shanghai, 201306, China
2.
Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2021-11-02
Rev Recd Date: 2022-05-13
Publish Date: 2022-10-12

Abstract

Abstract

By combining the three-dimensional finite element analysis method and the sealing liquid film flow field analysis based on the classical friction theory, six sealing surface schemes of the mechanical seal of a new type of nuclear reactor coolant pump (referred to as the nuclear main pump) are analyzed and studied. The key parameters such as liquid film thickness, contact load, nominal wear rate, and low pressure leakage rate of each scheme are compared. The calculation results show that the design scheme with a groove width of 6 mm is a set of designs with relatively balanced performance, and the performance output characteristics of the sealing surface are similar to that of an imported mature mechanical seal and slightly better than that of the imported model; The linear groove scheme with low-pressure compensation can greatly prolong the service life of the sealing surface, but also bring a higher low-pressure leakage rate.
- Reactor coolant pump,
- Mechanical seal,
- Hydrodynamic pressure,
- Linear groove,
- Groove optimization

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References(23)

References

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