Combined experimental and computational investigation of the effect of coating on operation characteristics of solid–liquid two-phase flow centrifugal pump

Wang, Yong; Chen, Jie; Xie, Lei; Liu, Houlin; Luo, Kaikai

doi:10.1142/s0217984921500627

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…Tan et al [15] used high-speed photography technology to track the motion law of single particles in the solid-liquid two-phase flow of coarse particles in a double-paddle pump and analyzed the influence of particle size and particle density on the passing and collision characteristics of particles. Wang et al [16] used experimental methods to study the effect of different coating thicknesses on the operating characteristics of sand-containing solid-liquid two-phase flow centrifugal pumps.…”

Section: Introductionmentioning

confidence: 99%

Study on Fiber Clogging Mechanism in Sewage Pump Based on CFD–DEM Simulation

et al. 2022

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A large number of solid particles and fibrous impurities are always entrained in the fluid transported by a sewage pump, which can easily lead to the blockage of the sewage pump. In view of this, CFD–DEM simulations were conducted in this paper to reveal the fiber clogging mechanism in the sewage pump. A CFD–DEM coupling method with a fiber model was established and verified by an experimental benchmark, i.e., the rectangular flow channel. The method was then applied to a model sewage pump to, after mesh independence tests, analyze the effects of flow rate and fiber length on fiber motion and clogging. The results showed that the position of fiber retention coincides with the position of the vortex, mainly located at the inlet of the impeller, the head of the blade, the middle of the blade, and the tongue in the pump. In the case of a low flow rate, the fiber was more likely to cause blockage in the head of the blade, and in the case of a large flow rate, the fiber would wind around the tongue in the pump. At the same flow rate, long fiber was more likely to stay on the blade’s suction surface.

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Section: Introductionmentioning

confidence: 99%

Study on Fiber Clogging Mechanism in Sewage Pump Based on CFD–DEM Simulation

et al. 2022

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Role of particle motion on pressure fluctuation and erosion for a centrifugal pump in energy storage pump station

CHEN,

TAN

2024

Journal of Energy Storage

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Structural Parameter Optimization of the Helical Blade of the Variable-Pitch, Downhole, Cyclone Separator Based on the Response Surface Method

Nie

Zhou

2022

Energies

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Aiming at the problems of pipeline blockage and equipment wear caused by large sand production in shallow gas hydrate mining on the seabed, based on the solid-state fluidization mining method, the idea of in situ separation of natural gas hydrate is proposed, and the downhole design is based on the physical parameters of hydrate mixed slurry. For the in situ helical separator, the CFD-Fluent commercial software was used to establish an analysis model and optimize the response surface of the model. The effects of the three-stage variable-pitch helix and blades on the performance of the separation device were investigated. The simulation results and response surface optimization were conducted through experiments to verify the accuracy. The results show that the third-stage pitch has the greatest impact on the separation efficiency and pressure drop, while the first-stage pitch has the least impact. The pressure drop and separation efficiency are fully considered. After the response surface optimization, the optimal three-stage pitch is the first-stage pitch x1 = 72.227 mm, the pitch of the second stage x2 = 105 mm, and the pitch of the third stage x3 = 124.817 mm. The separation efficiency of the optimal structure is verified by experiments. Compared with the previously used fixed-pitch downhole cyclone separator, the three-stage variable pitch cyclone, the separator improves the separation efficiency from 88.29% to 97.16% while keeping the pressure drop unchanged.

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Combined experimental and computational investigation of the effect of coating on operation characteristics of solid–liquid two-phase flow centrifugal pump

Cited by 4 publications

References 14 publications

Study on Fiber Clogging Mechanism in Sewage Pump Based on CFD–DEM Simulation

Study on Fiber Clogging Mechanism in Sewage Pump Based on CFD–DEM Simulation

Role of particle motion on pressure fluctuation and erosion for a centrifugal pump in energy storage pump station

Structural Parameter Optimization of the Helical Blade of the Variable-Pitch, Downhole, Cyclone Separator Based on the Response Surface Method

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