Open AccessAnalysis on Leakage Characteristics of Labyrinth Piston Clearance in Reciprocating Labyrinth Compressor
Author(s) -
Rui Huang,
Junming Cheng,
Tian Xia,
Qingyu Feng
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2101/1/012021
Subject(s) - leakage (economics) , mechanics , tip clearance , labyrinth seal , bandwidth throttling , reciprocating compressor , gas compressor , piston (optics) , axial compressor , radial piston pump , materials science , physics , engineering , mechanical engineering , composite material , optics , stiffness , wavefront , economics , macroeconomics
In this paper, the piston clearance leakage model in reciprocating labyrinth compressor is established, and the leakage characteristics of labyrinth piston are analysed. The results show that in the labyrinth entrance section, the gas velocity decreases greatly, and the throttling effect is the most obvious. In the middle section of the labyrinth, the flow velocity descending gradient decreases. In the exit section, the flow rate begins to increase. When the labyrinth clearance is less than or equal to 0.1 mm, the clearance changes has little effect on the leakage. When the clearance is greater than 0.1 mm, the leakage increases rapidly with the clearance increasing. When the piston operates eccentrically, the leakage will increase by 1.5 ∼ 2 times compared with the non-eccentric operation. Therefore, the eccentric operation of the piston should be avoided as much as possible and the clearance should be reduced.