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Effect of coating thickness on a solid-liquid two-phase flow centrifugal pump under water medium
ID Luo, Kaikai (Author), ID Wang, Yong (Author), ID Liu, Houlin (Author), ID Dular, Matevž (Author), ID Chen, Jie (Author), ID Zhang, Zilong (Author)

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Abstract
Spraying a coating on the surface of wet parts of a solid-liquid two-phase flow centrifugal pump could effectively increase its service life. To research the effect of coating thickness on the performance of the pump, a solid-liquid two-phase flow pump with a speed of ns = 81.5 was chosen, and polyurethane coatings with different thicknesses were sprayed on the surface of the blades of the impeller. The influence of coating thickness on the performance of the pump was tested under the condition of a water medium. Combined with numerical simulation, the internal flow, pressure fluctuations and radial force of the model pump were further analysed in detail. Keeping the blade outlet angle unchanged, the head and efficiency of the pump decrease with the increase of the coating thickness, and the amplitude of the decrease increases with the increase of the coating thickness. The peak value of pressure fluctuations increases with the increase of coating thickness. The pressure value on the impeller inlet increases first and then decreases with the increase of coating thickness. Radial force of impeller increases with the increase of coating thickness, and the radial force distributes in the triangle, which is the same as the number of blades.

Language:English
Keywords:coating thickness, solid-liquid two-phase flow pumps, numerical simulation, pressure fluctuation, radial force
Work type:Article (dk_c)
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2019
Publication status in journal:Published
Article version:Publisher's version of article
Number of pages:Str. 251-261
Numbering:Vol. 65, no. 4
PID:20.500.12556/RUL-126369 This link opens in a new window
UDC:621.67:519.6(045)
ISSN on article:0039-2480
URN:URN:NBN:SI:doc-8N0JIVPU
DOI:10.5545/sv-jme.2018.5865 This link opens in a new window
COBISS.SI-ID:16618779 This link opens in a new window
Publication date in RUL:19.04.2021
Views:370
Downloads:166
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.]
ISSN:0039-2480
COBISS.SI-ID:762116 This link opens in a new window

Secondary language

Language:Slovenian
Title:Vpliv debeline prevleke na tok tekočine in trdnih delcev v centrifugalni črpalki
Keywords:debelina prevleke, dvofazne črpalke, numerična simulacija, nihanje tlaka, radialna sila

Projects

Funder:Drugi - Drug financer ali več financerjev
Funding programme:National Key Research and Development Program of China
Project number:2017YFC0804107

Funder:Drugi - Drug financer ali več financerjev
Funding programme:National Natural Science Foundation of China
Project number:51779106

Funding programme:National Natural Science Foundation of China
Project number:51609164

Funder:Drugi - Drug financer ali več financerjev
Funding programme:Ministry of Education, Xihua University
Project number:szjj2016- 068

Funder:Drugi - Drug financer ali več financerjev
Funding programme:Jiangsu top six talent summit project
Project number:GDZB- 017

Funder:Drugi - Drug financer ali več financerjev
Funding programme:Natural Science Foundation of Jiangsu Province
Project number:BK20160574

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