Experimental investigation on the critical pressure and self-repairing capability of converging magnetic fluid seal with stepped pole pieces

Jiang, Lei; Yang, Xiaolong; Qiu, Minmin; Zuo, Liang; Li, Decai

doi:10.1016/j.triboint.2023.108506

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…Zhenggui Li [20,21], investigated the frictional power consumption and asymmetric curl characteristics of the hydraulic turbine main shaft FS. Lei Jiang [22], proposed a new type of stepped pole plate converging magnetic fluid seal design. This new type of seal has significant advantages, The experimental results indicate that this new type of sealing element has excellent sealing performance.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental study on pole teeth interlaced divergent ferrofluid seals with single magnetic source

Li,

Huang,

Lei

et al. 2024

Phys. Scr.

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For the improvement of pressure resistance in ferrofluid seal with a small gap, a structure of divergent ferrofluid seal (FS) with alternating pole teeth (PT) was proposed in this paper. Distribution of the magnetic field in the seal gap (SG) is analyzed by using the magnetic field finite element method, and the theoretical pressure resistance (PR) is calculated by using the step ferrofluid seal PR theory. Effect of the number of pole teeth and seal gap on its sealing PR were studied experimentally. The PR of the interlaced divergent FS is compared to the experimental findings of a conventional ferrofluid seal structure. The results show that the actual pressure value of the interlaced divergent FS is consistent with its theoretical pressure value well. Compared to the common ferrofluid seal, the interlaced divergent FS has better PR.

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Section: Introductionmentioning

confidence: 99%