Open AccessThe study of hydraulic characteristics of pneumatic lifting pump with air startup and shutdown
Author(s) -
Jinjing Zuo,
Shuang Wu,
Zhe Huang,
Bingqian Wei,
Ning Zhang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/643/1/012128
Subject(s) - closing (real estate) , fluent , turbulence , flow (mathematics) , computational fluid dynamics , engineering , mode (computer interface) , environmental science , marine engineering , mechanics , mechanical engineering , petroleum engineering , simulation , computer science , computer simulation , physics , political science , law , operating system
Pneumatic lifting pump, as one of the ideal new methods for mining and upgrading, has obvious advantages such as simple structure, safety and reliability. The research of it has important scientific value and engineering significance. Based on Fluent simulation software, using Euler model and SST k-ω turbulence model, with the help of UDF self-programming, the influence of variable air volumes-linear opening, linearly closing on the hydraulic characteristics of the air-water lifting pump is discussed. The results are shown as follows. 1) In the slow linear opening mode of the gas flow, the liquid lifting flow increases, the change trend of it is slower than that of fast linear closing mode. 2) In the slow linear closing mode of the gas flow, the liquid lifting flow reduces, the change trend of it is slower than that of fast linear closing mode. These research results will lay the theoretical foundation for the application of pneumatic lifting technology in river dredging, sewage treatment, oil extraction and other fields.