既有建筑暖通系统节能改造技术分析

Analysis of Energy-saving Renovation Technology for Existing Building HVAC Systems

摘要:

既有建筑暖通空调系统普遍存在设备老化、能效衰减、气流组织失当、运行控制粗放等问题,长期处于能源浪费与室内热舒适失衡并存的不良运行状态。文章结合实际案例,通过现场实测与长期运行数据复盘分析,精准识别末端风口射流形式失配、风机盘管集群无序运行、非工作时段设备空转等核心问题,针对性地提出"问题导向—分级诊断—精准改造"的闭环技术路径,重点分析中央空调末端风机盘管群控系统的管理节能策略及其对应的节电潜力,同时围绕风口精细化改造与室内气流组织重塑展开专项技术探讨。结果显示,实施上述节能改造技术后,项目典型区域的室内温度均匀性得到显著提升,空调末端系统综合节电效益突出。

Abstract:

Existing building HVAC systems commonly suffer from issues such as equipment aging, energy efficiency degradation, improper airflow organization, and extensive operation control, resulting in a long-term poor operating state of energy waste and indoor thermal comfort imbalance. The article combines practical cases and conducts on-site testing and long-term operation data analysis to accurately identify core issues such as mismatched jet forms at the end of the air outlet, disorderly operation of fan coil clusters, and equipment idling during non working hours. It proposes a targeted closed-loop technical path of "problem oriented graded diagnosis precise transformation", focusing on analyzing the management energy-saving strategies and corresponding energy-saving potential of the central air conditioning end fan coil group control system. At the same time, special technical discussions are carried out around the fine transformation of air outlets and the reshaping of indoor airflow organization. The results show that after implementing the above-mentioned energy-saving renovation technologies, the indoor temperature uniformity in typical areas of the project has been significantly improved, and the comprehensive energy-saving benefits of the air conditioning terminal system are outstanding.