冷却塔供冷系统设计方法
Design method of free cooling system by cooling towers
摘要：
介绍了冷却塔免费供冷的原理，通过对工程设计中的一些方法和概念进行分析，提出开式冷却塔加板式换热器是冬季冷却塔供冷较实用的形式，探讨了冬季内区采用较高空调供水温度的可行性、冷却塔冬季性能曲线、冷却塔供冷与冷水机组供冷工况切换点的取值、水泵的选取、冷水机组选用等问题。给出了冷却塔系统设计实例。
关键词：冷却塔供冷 经济性 冬季热工曲线 工况切换点 冷却水泵 冷水机组 水处理
Abstract：
Presents the principle of a tower cooling system. Based on the analysis of ways and concepts in engineering, considers that the system of open cooling towers plus plate heat exchangers is a more economical and practical mode in winter. Discusses the issues such as the feasibility of adopting higher supply water temperature for inner zone in winter, performance curve of cooling tower in winter, selection of switching point between cooling by towers and refrigerators, selection of pumps and refrigerators. Provides a design example.
Keywords:tower cooling, economy, performance curve in winter, switching point, cooling water pump, water chiller unit, water treatment