Basic Information
Name: Shuangxi Li
Gender: Male
Department:College of Electromechanical Engineering, Beijing University of Chemical Technology
Email：lishuangxi@mail.buct.edu.cn
Education/Academic Credentials:
Office Location:Administration Building 419
ORCID：https://orcid.org/0000-0003-4581-4035
DBLP:
Research direction:
Fluid sealing technology, friction and wear mechanisms, pressure vessel design and analysis
Introduction:
Shuangxi Li, male, professor of the School of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, the main scientific research direction for the fluid sealing technology and special process device research and development, as the first or corresponding author of more than 100 papers, including more than 30 papers included in the SCI, EI, more than 20 patents of invention to authorize more than 20 pieces of approved software copyright, edited a book, edited the monograph, edited the monograph, edited the two, edited the sealing industry standard 2 items. He won the second prize of China Machinery Industry Science and Technology Award, the first prize of Anhui Province Science and Technology Progress, and the third prize of Shandong Province Science and Technology Progress. He is also the chairman of the Chemical Special Seal Standardization Committee, a member and deputy secretary-general of the National Mechanical Seal Standardization Committee, and a member of the Gas Lubrication Committee of the Tribology Branch.
Research:
(1) Research direction of special fluid sealing technology.
This research direction mainly focuses on the industrial special fluid sealing technology problems, for different sealing needs to carry out a series of mechanism research and sealing structure design, revealed the gas phase, liquid phase, gas-liquid mixed-phase, as well as supercritical carbon dioxide and other complex working conditions of the sealing mechanism, the research results have been successfully applied to the liquid rocket engine gas turbines, liquid oxygen pumps, as well as aircraft engines, bearing cavities, such as the core of the power transmission, bearing cavity and other sealing parts. Sealing parts of the core power components such as the aerospace engine reducer and bearing cavity. The research work has provided reliable sealing technology software and hardware support for high-parameter engines. Aero-engine reducer high-performance mechanical seal key technology research project, sealing structure life reached 2000 hours, sealing technology industrial application maturity reached 6 level, the research results broke the United States, the Western countries on the aero-engine high-performance sealing technology blockade.
(2) Friction wear mechanism research direction.
This direction starts from the purpose of friction wear reduction and optimisation, and realises the optimisation of friction wear reduction and even the super-slip state by means of material modification, friction sub-material matching and surface engineering technology. The study of friction wear mechanism reveals the friction evolution process of friction vice endface state and dynamic damage mechanism of endface, which provides analysis basis for the development of friction vice composite materials. The friction film of the developed carbon-based composite material is transferred and adsorbed on the surface of the paired materials, which makes the friction interface more uniform and stable, and not only improves the wear resistance of the material, but also promotes the oxidation resistance of the friction vice. The friction wear mechanism research results further broaden the limit of seal end face wear resistance, providing technical support for the seal structure used in extreme working conditions.
(3) Pressure vessel design and analysis research direction.
Pressure vessel is a special equipment, due to the internal medium of high pressure and a certain degree of hazardous, in the operation and use of the process due to corrosion, deformation, cracks, etc. caused by equipment damage, and in serious cases will lead to an explosion, resulting in serious social security accidents, environmental pollution and economic losses. The research work covers solid-state hydrogen storage vessels, nuclear power high-risk filters and hydrogen desulphurisation anti-fatigue vessels, etc. The research has developed a set of full-featured pressure vessel simulation design software, which is capable of enhancing the production efficiency of chemical equipment while ensuring the safety of the equipment under hazardous conditions of use, and promoting the development of domestic economy and environmental protection. The research results are applied in the field of petrochemical and nuclear power equipment, providing advanced anti-vibration and shock solutions for petrochemical and nuclear power groups, and improving the reliability and life of production equipment.
The research direction and content of the scientific theoretical basis and social and economic development needs are closely linked to the aviation and aerospace equipment technology upgrading of the power system sealing problems to carry out theoretical research, based on the purpose of reducing costs and increasing efficiency to provide the theoretical basis for the development of industrial technology and technical support.
Teaching:
Fluid lubrication and sealing technology. Postgraduate programme,
Design optimization. Undergraduate programme
Process equipment manufacturing process. Undergraduate programme
Funding:
Ministry of Science and Technology, Key Research and Development Programme, 2018YFB2000801, Research on Mechanical Seal Service Performance Evolution and Intelligent Principle, Chairperson
Entrusted by enterprises and institutions, Design of 90kg-class solid-state hydrogen storage device, chairperson
Design of solid hydrogen storage system, entrusted by the enterprise and institution, presided.
Entrusted by enterprise and institution, Improvement of Dry Friction Mechanical Sealing Technology for Kettles, presided.
Entrusted by enterprise and institution, Life test of graphite sealing device, presided.
Entrusted by enterprise and institution, Performance analysis of rotating lip shaped sealing ring, presided.
Entrusted by enterprise and institution, FEA calculation and design of high pressure hydrogen equipment-35MPa, presided.
Entrusted by enterprise and institution, FEA calculation and design of high-pressure hydrogen equipment, entrusted by enterprise and institution, presided
Entrusted scientific and technological projects by enterprises and institutions, Simulation of metal O-ring seal structure with 41 inner diameter and open hole, chairing
Entrusted by enterprise and institution, 43.94 Venturi CFD simulation of BB system, chairing
Publications:
Dengyu Liu; Jun Zhao; Shuangxi Li; Xinni Zhao; Lele Huang ; Experimental Study on Tribological and Leakage Characteristics of a Rotating Spring-Energized Seal under High and Low Temperature, Machines, 2023.【SCI】
Zifeng Song; Shuangxi Li; Xiaozhu Chen; Zhiyuan Liu; Tan Zhao; Baiqi Huang ; Study on the Service Performance of a Two-Stage Floating-Ring Isolation Seal for a High-Speed Turbopump with a Cryogenic Medium, Machines, 2023.【SCI】
Shicong Li; Caifu Qian; Jun Zhao; Qingzhan Li; Shuangxi Li ; Dry gas seal performance analysis using a hydrodynamic and hydrostatic pressure decoupling method: Part 1, Sealing Technology, 2020, vol.2020(9): 4-9.【SCI】
Shicong Li; Caifu Qian; Jun Zhao; Qingzhan Li; Shuangxi Li ; Dry gas seal performance analysis using a hydrodynamic and hydrostatic pressure decoupling method: Part 2, Sealing Technology, 2020, vol.2020(10): 4-9.【SCI】
Jun Zhao; Yiyao Huang; Yingru Li; Tong Gao; Zhan Dou; Junyuan Mao; Hongdong Wang; Yongyong He; Shuangxi Li ; Superhigh-exfoliation graphene with a unique two-dimensional (2D) microstructure for lubrication application, Applied Surface Science, 2020, Vol.513(No.0): 145608-145608.【SCI,TOP】
Wei Liu; Yang Liu; Shuangxi Li; Demodulated Multisynchrosqueezing S Transform for Fault Diagnosis of Rotating Machinery. IEEE Sensors Journal, 2022, 22(21):20773-20784.【SCI,TOP】
Jun Zhao; Yijiang Liu; Dengyu Liu; Yanfei Gu; Zheng R, Runmei Ma; Shuangxi Li; Yongfu Wang; Yijun Shi; The Tribological Performance of Metal-/Resin-Impregnated Graphite under Harsh Condition. Lubricants. 2022; 10(1):2.【SCI,TOP】
Jun Zhao; Qingzhan Li; Shuangxi Li;. Shicong Li; Guangyan Chen; Xinghua Liu; Yongyong HE; Jianbin Luo; Influence of a carbon-based tribofilm induced by the friction temperature on the tribological properties of impregnated graphite sliding against a cemented carbide. Friction 9, 686–696 (2021).【SCI】
Shuangxi Li; Zhang Xinyu; Li Qingzhan; Xu Qinshang; Zhang Yongqiang; Zhang Yongwei ; A kind of sealing device, system and sealing control method for mixing kettle, 2019-05-06, China, 201910370810.9. [Patent].
Shuangxi Li; Liu Zhiwei; Wang Jiaxing; Li Qingzhan; Liao Haoran ; A kind of wireless monitoring and measuring device for tank bolts, 2019-9-8, China, 201910845209.0. [Patent].
Awards:
Shuangxi Li (5/10); GB/T 33509-2017 "General Specification for Mechanical Seals", China Machinery Industry Federation; China Society of Mechanical Engineering, Scientific and Technological Progress, Others, 2020 (Kun Li; Chenghou He; Zhaoshan Wu; Zhi Chen; Shuangxi Li; Xudong Peng; Youhua Zhang; Liming Wu; Hui Wang; Xiang Li).