变频变容喷气增焓空调压缩机的理论与实验研究

摘要

The lower heating capacity in low ambient temperature is the defect of the air-conditioner. Some schemes have been proposed to solve the problem, but they can't improve the quantity of heat more than 50%in low ambient tem-perature and improve efficiency in general temperature at the same time. This paper proposes a vapor-injection varicap compressor, and studies its heating capacity and efficiency properties. The experimental results show that the APF of the air-conditioner increased by 6%when using the vapor-injection varicap compressor, and the quantity of heat increased by 85%, at the same time.%低温制热能力不足问题一直是空调的诟病，研发人员在前期也提出过几种解决温制热量的方案，但都以难满足APF工况下的能效提升和低温-15℃环境温度下高制热量的两个目标。针对这一难题，提出一种集变频技术、变容技术和喷气增焓技术为一体的压缩机设计方案，通过原理分析进行了样机的结构设计，研究其性能及低温能力特性，经验证，搭载空调系统测试时，喷气能力能效提升效果明显，在喷气情况下，搭载系统APF比基准机型提高了约6%，同时，搭载系统的低温-15℃的制热能力相对基准机提升了约85%，效果显著。