Experimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor

Water-lubricated single-screw compressors (WSSCs) have developed rapidly in recent years because they can supply oil-free compressed air at considerably low costs. However, a major technical obstacle is that the conventional bearing arrangement of a star wheel shaft is prone to wear failure, which m...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jia Xie, Chengyu Peng, Wenshan Zhang, Cun Zhao, Quanke Feng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	water-lubricated single-screw compressor (WSSC) hydrostatic thrust bearing (HTB) bearing performance working stability Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/76b581f6b65340b8b1eedbf923c3d8ae
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:76b581f6b65340b8b1eedbf923c3d8ae
record_format	dspace
spelling	oai:doaj.org-article:76b581f6b65340b8b1eedbf923c3d8ae2021-11-11T15:01:02ZExperimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor10.3390/app112199202076-3417https://doaj.org/article/76b581f6b65340b8b1eedbf923c3d8ae2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9920https://doaj.org/toc/2076-3417Water-lubricated single-screw compressors (WSSCs) have developed rapidly in recent years because they can supply oil-free compressed air at considerably low costs. However, a major technical obstacle is that the conventional bearing arrangement of a star wheel shaft is prone to wear failure, which makes it difficult for WSSCs to run properly for long periods of time. To solve this problem, a star wheel thrust bearing with new liquid groove was proposed in this paper. Pulsating forces (i.e., bearing forces) acting on a star wheel shaft by compressing air were calculated through the dynamic analysis of the star wheel shaft system. A mathematical model of hydraulic water films in the bearing sliding clearance was established to describe the influence of water injection pressure on water film pressure distribution and its bearing capacity. Lubrication characteristics were compared between two types of hydrostatic thrust bearings (HTBs) with different grooves to illustrate that the new structure is more suitable for WSSCs. The reasonability of the proposed model and simulation results were verified using an axial thrust bearing test rig developed by the authors. In addition, variation parameters of hydrostatic film thickness between the sliding surfaces of the star wheel axial thrust bearing were measured. The results show that the instability of the water film thickness and axial vibration of the star wheel were suppressed, thereby avoiding the contact of solid materials between the end face of the axial thrust bearing. This study provides a structural optimization pattern of star wheel axial thrust bearings used in water-lubricated single-screw compressors.Jia XieChengyu PengWenshan ZhangCun ZhaoQuanke FengMDPI AGarticlewater-lubricated single-screw compressor (WSSC)hydrostatic thrust bearing (HTB)bearing performanceworking stabilityTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9920, p 9920 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	water-lubricated single-screw compressor (WSSC) hydrostatic thrust bearing (HTB) bearing performance working stability Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	water-lubricated single-screw compressor (WSSC) hydrostatic thrust bearing (HTB) bearing performance working stability Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Jia Xie Chengyu Peng Wenshan Zhang Cun Zhao Quanke Feng Experimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor
description	Water-lubricated single-screw compressors (WSSCs) have developed rapidly in recent years because they can supply oil-free compressed air at considerably low costs. However, a major technical obstacle is that the conventional bearing arrangement of a star wheel shaft is prone to wear failure, which makes it difficult for WSSCs to run properly for long periods of time. To solve this problem, a star wheel thrust bearing with new liquid groove was proposed in this paper. Pulsating forces (i.e., bearing forces) acting on a star wheel shaft by compressing air were calculated through the dynamic analysis of the star wheel shaft system. A mathematical model of hydraulic water films in the bearing sliding clearance was established to describe the influence of water injection pressure on water film pressure distribution and its bearing capacity. Lubrication characteristics were compared between two types of hydrostatic thrust bearings (HTBs) with different grooves to illustrate that the new structure is more suitable for WSSCs. The reasonability of the proposed model and simulation results were verified using an axial thrust bearing test rig developed by the authors. In addition, variation parameters of hydrostatic film thickness between the sliding surfaces of the star wheel axial thrust bearing were measured. The results show that the instability of the water film thickness and axial vibration of the star wheel were suppressed, thereby avoiding the contact of solid materials between the end face of the axial thrust bearing. This study provides a structural optimization pattern of star wheel axial thrust bearings used in water-lubricated single-screw compressors.
format	article
author	Jia Xie Chengyu Peng Wenshan Zhang Cun Zhao Quanke Feng
author_facet	Jia Xie Chengyu Peng Wenshan Zhang Cun Zhao Quanke Feng
author_sort	Jia Xie
title	Experimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor
title_short	Experimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor
title_full	Experimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor
title_fullStr	Experimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor
title_full_unstemmed	Experimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor
title_sort	experimental and simulated investigation of lubrication characteristics of a water-lubricated bearing in a single-screw compressor
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/76b581f6b65340b8b1eedbf923c3d8ae
work_keys_str_mv	AT jiaxie experimentalandsimulatedinvestigationoflubricationcharacteristicsofawaterlubricatedbearinginasinglescrewcompressor AT chengyupeng experimentalandsimulatedinvestigationoflubricationcharacteristicsofawaterlubricatedbearinginasinglescrewcompressor AT wenshanzhang experimentalandsimulatedinvestigationoflubricationcharacteristicsofawaterlubricatedbearinginasinglescrewcompressor AT cunzhao experimentalandsimulatedinvestigationoflubricationcharacteristicsofawaterlubricatedbearinginasinglescrewcompressor AT quankefeng experimentalandsimulatedinvestigationoflubricationcharacteristicsofawaterlubricatedbearinginasinglescrewcompressor
_version_	1718437609397551104

Experimental and Simulated Investigation of Lubrication Characteristics of a Water-Lubricated Bearing in a Single-Screw Compressor

Ejemplares similares