关于R290热泵热水器专用压缩机的研究

本文以国际社会冷媒替代的大趋势作为引子，分析了R290作为替代制冷剂的优势。在当前国内严峻的节能减排压力下，热泵热水器以其高效节能的特点在热水器行业中越来越受到关注，R290热泵热水器专用压缩机就是在这种形势下诞生的。在开发过程中，主要针对压缩机气缸、缸盖等部件进行优化，有效提高泵体效率和可靠性；选择合适的冷冻机油，对R290新冷媒与冷冻机油的匹配进行严格考验，确保压缩机在恶劣工况下能够平稳运行，并最终通过长期寿命试验的考核。本文还对R290热泵热水器专用压缩机的防爆提出相应对策，为客户的安全使用提供参考。

Research on special compressor for HPWH filled with R290

First of all, the paper explains that R290 has its advantages as a substitute cryogen under the current situation of cryogen renovation all over the world. In the crucial stress of energy conservation in China, people begin to pay more and more attention to heat pump water heater （HPWT） for its high efficiency and good performances in energy-saving in the industry of water heater. Special compressor for HPWT filled with R290 as its cryogen is born in this situation. During the research and development process, we optimize the cylinder and the upper cover to increase the efficiency and reliability of the pump body~ we choose the appropriate refrigeration oil and do crucial experiments to measure the performance of the compressor filled with different oil so that we can guarantee its stable operation under the crucial working conditions and the compressor finally pass the long-time reliability tests. Besides, the paper also suggests some measures for the explosion protection when use the special compressor for HPWT filled with R290 for the reference of the client.