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【英文篇名】 Discussion on water systems for commercial air conditioning 【作者中文名】 汪善国; 【作者英文名】 Shankuo Wang; 【文献出处】 暖通空调, HV 双环路系统; 部分负荷; 冷量调节; 节能; 【英文关键词】 water system for air conditioning; primary-secondary loop system; partial load; capacity regulation; energy efficiency; 【摘要】 讨论了单环路和双环路水系统,着重讨论了双环路系统的运行工况与负荷调节、平衡阀的采用、等百分比两通阀的压降、供回水干管间的压力控制等问题。 【英文摘要】 Discusses the single loop and primary-secondary loop water system and emphasizes the latter in issues of its operation in design and partial load modes,application of balancing valves, pressure drop across the equal percentase two way valve and control of the pressure difference between the supply and return mains.