R32定速压缩机能效提升研究

Research on Improvement of Efficiency for R32 Rotary Fixed Speed Compressor

受R32自身特点影响,其泵体结构换热损失、泄漏损失和吸排气损失要高于R410A机种。本文研究了印度新5星能效提升后,在R410A压缩机的结构基础上更换R32制冷剂,分析了性能损失的分布和提高效率的方案,通过调整气缸高径比、改善轴系结构和优化吸排气结构等措施,气缸扁平化提升效率为0.6%,叶片厚度减薄提升效率为0.1%,优化轴系结构提升效率为0.2%,改善吸气结构提升效率为0.2%,改善排气结构提升效率为0.4%,最终合计实现压缩机效率提升了1.6%,满足印度高效产品的开发要求。

Affected by the characteristics of R32,the heat transfer loss,leakage loss and suction and exhaust loss of the pump structure are higher than those of R410A systems.In this paper,after the increase of India's new 5-star energy efficiency,R32 refrigerant is replaced on the basis of the structure of the R410A compressor,the distribution of performance loss and the plan to improve efficiency are analyzed.By adjusting the cylinder height,improving the shaft structure,optimizing the suction and exhaust structure and other measures to reduce the impact of various losses on the pump efficiency,the contribution of cylinder flattening is up to 0.6%,the contribution of vane thickness reduction is up to 0.1%,the contribution of shafting structure optimization is 0.2%,the contribution of suction structure improvement is 0.2%,the contribution of exhaust structure improvement is 0.4%,and the whole efficiency is improved up to 1.6%,which meet the development requirements of India compressor pump structure efficiency.