基于CFD的滚动转子压缩机排气阀片性能分析

doi:10.12068/j.issn.1005-3026.2020.12.013

东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (12): 1754-1759.DOI: 10.12068/j.issn.1005-3026.2020.12.013

基于CFD的滚动转子压缩机排气阀片性能分析

邓文娟，张英莉，丁佳男，巴德纯

(东北大学机械工程与自动化学院，辽宁沈阳110819)

收稿日期:2020-02-05 修回日期:2020-02-05 出版日期:2020-12-15 发布日期:2020-12-22
通讯作者: 邓文娟
作者简介:邓文娟(1982-)，女，广西北海人，东北大学博士研究生；巴德纯(1954-)，男，辽宁沈阳人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51775096).

CFD-based Performance Analysis of a Discharge Valve Plate in the Rolling Rotor Compressor

DENG Wen-juan， ZHANG Ying-li， DING Jia-nan， BA De-chun

School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China.

Received:2020-02-05 Revised:2020-02-05 Online:2020-12-15 Published:2020-12-22
Contact: BA De-chun
About author:-
Supported by:
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摘要/Abstract

摘要： 基于已验证的滚动转子压缩机计算流体动力学(CFD)模型，获得阀片工作的周期性气体载荷，并利用 Workbench软件对排气阀片进行瞬态动力学分析和疲劳寿命预测.分析阀片及阀背板的几何参数对阀片通流面积和寿命的影响，分析得到阀的通流面积和疲劳强度与阀片厚度、阀片特征升程有关.在特定工况下，取阀片厚度为0.305mm，阀片特征升程为2.5mm，兼顾阀片的通流面积和疲劳寿命，得到较理想的性能结果.在此基础上，优化了阀背板型线，优化后的阀片通流面积增加8.63%，最大应力减小107.4MPa.研究结果对滚动转子压缩机排气阀片的设计提供了有效参考和评价方法.

关键词: 压缩机排气阀片, 计算流体动力学(CFD), 有限元, 数值模拟, 优化

Abstract: Based on the CFD(computer fluid dynamics) model of the verified rolling rotor compressor， the periodic gas load of the valve plate is obtained， and the transient dynamic analysis and fatigue life prediction of the discharge valve plate are carried out by using the Workbench software. The influence of the geometric parameters of the valve on the flow area and the life of the valve plate is analyzed. It is found that the flow area and fatigue strength of the valve plate are related to the thickness of the valve plate and the characteristic lift of the valve plate. Under the specific conditions with the valve plate thickness of 0.305mm and the characteristic lift of the valve plate of 2.5mm， ideal performance results are obtained while the flow area and fatigue life of the valve plate are taken into account too. On this basis， the retainer profile is optimized， the flow area of the optimized valve plate increases by 8.63%， and the maximum stress decreases by 107.4MPa. The research results provide an effective reference and evaluation method for the design of discharge valve plate of rolling rotor compressor.

Key words: compressor discharge valve plate, computer fluid dynamics(CFD), finite element method, numerical simulation, optimization

中图分类号:

TB652
TH455

邓文娟，张英莉，丁佳男，巴德纯. 基于CFD的滚动转子压缩机排气阀片性能分析[J]. 东北大学学报:自然科学版, 2020, 41(12): 1754-1759.

DENG Wen-juan， ZHANG Ying-li， DING Jia-nan， BA De-chun. CFD-based Performance Analysis of a Discharge Valve Plate in the Rolling Rotor Compressor[J]. Journal of Northeastern University Natural Science, 2020, 41(12): 1754-1759.

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基于CFD的滚动转子压缩机排气阀片性能分析

CFD-based Performance Analysis of a Discharge Valve Plate in the Rolling Rotor Compressor

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