四川省档案局 (馆 )成功完成中央空调的研究性改造 ,使普通中央空调能作档案库房专用 ,常年保持库房相对湿度RH45 % -50 %之间。本文简要介绍了研究改造过程并剖析了新系统的低温除湿、能量调度、温度平衡、热量利用、空气净化等功能 ,在技术、经济方面作了深入的分析和比较 ,供档案界同仁参考。 Sichuan Archives (Museum) successfully completed the research of central air-conditioning renovation, so that ordinary central air-conditioning can be dedicated archives, perennial to maintain the relative humidity RH55% -50%. This paper briefly introduces the process of research and analysis and analyzes the functions of low temperature dehumidification, energy scheduling, temperature balance, heat utilization and air purification of the new system, and makes an in-depth analysis and comparison in terms of technology and economy.