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Research on asymmetric working process in single‑screw compressors
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Fangyong HOU1, Yuanyuan WU2, Ping ZHANG3, Weifeng WU3
Fluid Machinery | 2025, 53(7) : 15 - 21
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Fluid Machinery | 2025, 53(7): 15-21
Research on asymmetric working process in single‑screw compressors
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Fangyong HOU1, Yuanyuan WU2, Ping ZHANG3, Weifeng WU3
Affiliations
  • 1Xingzhi College of Xi'an University of Finance and Economics，Xi'an 710038，China
  • 2Wuhan Petrochemical Engineering Design Co.，Ltd.，Wuhan 430080，China
  • 3School of Energy and Power Engineering，Xi'an Jiaotong University，Xi'an 710049，China
Published: 2025-07-30 doi: 10.3969/j.issn.1005-0329.2025.07.003
Outline
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To address the issue of pipeline vibration and excessive noise caused by asymmetric working processes in single‑screw compressors，a bilateral full‑process dynamic characteristic test platform was established.The impact of lubricant secondary distribution on working processes was tested，and exhaust/leakage characteristics in upper and lower working chambers were analyzed.Results show that for a 6.77 m³/min compressor at 1 800 r/min and 900 kPa discharge pressure，the pressure difference between upper and lower working processes reaches 39 kPa.Lower‑side discharge pressure exceeds upper‑side by 10~15 kPa.Asymmetry can be reduced by delaying upper‑side exhaust，decreasing lower‑side spray pipeline valve opening，or reducing lower‑side spray hole diameter.This study provides reference for pipeline vibration reduction and noise control in single‑screw compressors.

single‑screw compressor（SSC）  /  asymmetric working process  /  lubricant  /  vibration reduction
侯方勇, 吴袁媛, 张平, 吴伟烽. 单螺杆压缩机非对称工作过程研究. 流体机械, 2025 , 53 (7) : 15 -21 . DOI: 10.3969/j.issn.1005-0329.2025.07.003
Fangyong HOU, Yuanyuan WU, Ping ZHANG, Weifeng WU. Research on asymmetric working process in single‑screw compressors[J]. Fluid Machinery, 2025 , 53 (7) : 15 -21 . DOI: 10.3969/j.issn.1005-0329.2025.07.003
Appendix
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Year 2025 volume 53 Issue 7
57
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Article Info
doi: 10.3969/j.issn.1005-0329.2025.07.003
  • Receive Date：2024-10-15
  • Online Date：2026-10-20
  • Published：2025-07-30
Article Data
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History
  • Received：2024-10-15
  • Revised：2025-02-25
Affiliations
    1Xingzhi College of Xi'an University of Finance and Economics，Xi'an 710038，China
    2Wuhan Petrochemical Engineering Design Co.，Ltd.，Wuhan 430080，China
    3School of Energy and Power Engineering，Xi'an Jiaotong University，Xi'an 710049，China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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