Finite element analysis of wear for centrifugal slurry pump

Xiang, Dong; Hai-lu, Zhang; Wang, Xinyong

doi:10.1016/j.proeps.2009.09.236

Cited by 30 publications

(12 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pumps used for catching raw water, installed in rivers of sedimentary waters intended for projects of irrigation and urban and rural supply, undergo wear on impellers caused by the abrasion of the sediments in suspension. According to Xing et al (2009), diameter and concentration of sediment particles have great influence on the wear conditions of centrifuge pumps, causing points of deformation resulting from the impact of particles on the surface of the impeller blades. Maio et al (2012), analyzing the wear in the presence of solids in suspension in centrifuge pumps, concluded that the increase in vibration, resulting from the erosion caused by the abrasion of the sediments, may indicate an evolution in pump wear and is the main cause of the reduction in its efficiency and useful life.…”

Section: Introductionmentioning

confidence: 99%

Abrasive effects of sediments on impellers of pumps used for catching raw water

Serrano

Castro

Rico

et al. 2018

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

This study presents an analysis of the abrasive effects of sediments from the bed of the Acre River, Brazil, on the wear of three different ferrous materials employed in the manufacture of impellers of centrifuge pumps used to catch raw water. In order to evaluate the abrasive wear and specific wear coefficient (k) as a function of sediment concentration, tests were conducted in samples of SAE 8620 steel, nodular cast iron and gray cast iron by using a rotary-ball abrasion meter. These tests employed abrasive slurry with concentration of 1, 2, 3, 5 and 10 g L-1 of sediments in distilled water. The volume of worn material as a function of the relative velocity of water flow in relation to the impeller blades was mathematically estimated. The experimental results showed that: i) The semi-angular and semi-rounded shapes of the sediments from the Acre River produced evidence of micro-grooving and plastic deformation in the three metallic alloys; ii) SAE 8620 steel showed higher resistance to abrasive wear than samples of gray and nodular cast iron; iii) the increase in the volume of worn material due to increment in sediment concentration and the relative velocity of the mixture (water + sediment) to the rotor pads.

show abstract

Section: Introductionmentioning

confidence: 99%

Abrasive effects of sediments on impellers of pumps used for catching raw water

Serrano

Castro

Rico

et al. 2018

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

show abstract

“…The abrasive effects of the sediments may cause furrows on the surfaces of the impellers due to the impact of the particles, increasing the distortion of the grooves due to the increase of the particle diameter [3].…”

Section: Introductionmentioning

confidence: 99%

Methodology for Abrasive Wear Evaluation in Elevator Stage Centrifugal Pump Impellers

Serrano¹,

Moreira²,

Castro³

et al. 2020

Rotating Machinery

View full text Add to dashboard Cite

The abrasion resistance of the impellers depends on the characteristics of the materials used in their manufacture. In this work, a methodology is proposed for the evaluation of the abrasive wear of the plates of the centrifugal pump impellers, used in the gross water infrastructure station (GWIS) of sedimentary rivers, due to the sediment load variation and the river fluviometric dimension. In order to determine the wear mode and the relationship of the material-specific wear coefficient (K), due to the sediment concentration, a rotating ball abrasometer test was performed on SAE 8620, gray cast iron (GCI), and nodular cast iron (NCI), used in the manufacture of impellers. As an abrasive suspension, the concentrations of 1, 2, 3, 5, and 10 g L À1 of sediment were used in distilled water. The wear volume as a function of the relative velocity of the mixture in relation to the impeller blades was estimated mathematically. The results show that: i) The abrasive capacity of the sediments in different concentrations; ii) SAE 8620 steel was more resistant to abrasive wear; and iii) the rotational control of the pump as a function of sediment concentration and river level showed the possibility of reducing wear by 30%.

show abstract

“…Bross and Addiei [3] proposed a model to predict the influence of different impeller design parameters on wear behavior. Xing et al [4] used a finite element analysis tool, namely, ANSYS, to simulate the wear process of flow components and found that pits on the surface of flow components are caused by particle impact. A systematic study on the failure Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/ymssp analysis of slurry pump impellers revealed that weight loss of corrosive wear is influenced by impact velocity, and that impeller failure is mainly caused by wear [5].…”

Section: Introductionmentioning

confidence: 99%