基于间隙泄漏模型的微型转子压缩机结构优化
Structural optimization of micro rotary compressors based on gap leakage model
蔡德华 1陈梦婷 1陈恩 2吴小艳3
作者信息
- 1. 华中科技大学能源与动力工程学院,湖北 武汉 430074
- 2. 合肥通用机械研究院有限公司,安徽 合肥 230000
- 3. 湖北理工学院机电工程学院,湖北 黄石 435003
- 折叠
摘要
针对追求紧凑设计与高效运转过程中微型滚动转子压缩机面临的内部制冷剂泄漏难题,提出了一种基于间隙泄漏数学模型的优化设计方法.通过分析在固定排气量条件下,最小泄漏通道间隙、相对偏心距及相对气缸长度对R290与R32型压缩机泄漏量的影响,比较两种制冷剂压缩机在不同结构配置下的泄漏损耗,识别出影响能效的关键结构参数.据此,提出了优化设计方案,调整相对偏心距和相对气缸长度至0.213 0和0.4,同时将径向间隙减至10 μm,可使容积效率从46.77%提高至67.48%,实现了44.28%的效率提升.
Abstract
A gap leakage mathematical model based optimization design method was proposed to address the internal refrigerant leakage problem faced by micro rolling rotor compressors in pursuit of compact design and efficient operation.By examining the influence of the minimum leakage channel gap,relative eccentricity,and relative cylinder length on the leakage volume of Refrigerant 290(R290)and Refrigerant 32(R32)compressors under a condition of fixed exhaust volume,and by comparing the leakage losses of two types of refrigerant compressors under various structural configurations,the key structural parameters affecting energy efficiency were identified.Based on these findings,an optimized design scheme was proposed,wherein the relative eccentricity and relative cylinder length were adjusted to 0.213 0 and 0.4,respectively,and the radial gap was reduced to 10 μm.Consequently,the volumetric efficiency increased from 46.77%to 67.48%,achieving an efficiency improvement of 44.28%.
关键词
微型滚动转子压缩机/容积效率/泄漏损失/数学模型/润滑剂-制冷剂混合物/天然制冷剂Key words
micro rolling rotor compressor/volumetric efficiency/leakage loss/mathematical model/lubricant-refrigerant mixture/natural refrigerant引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据