集中供热系统供热首站方案选择和经济性分析

结合集中供热系统热源供热首站方案实例，对直接连接混水＋分布式变频泵和间接连接两种方案进行了初投资、运行电耗成本及维护成本等方面的经济技术性分析，得出了在保证系统安全的情况下，采用直接连接混水方案经济性更好的结论。

Scheme selection and economic analysis on the first heating supply station of central heating system

Based on the first heating supply station scheme case of the central heating system, it carries on economic and technical analysis on the two schemes of directly connecting mixing water ＋ distributive type frequency changing pump and indirectly connecting from aspects of prelim- inary investment, running cost, and maintenance cost and so on, and concludes that the economic property will be better by applying directly connecting mixing waier scheme under the condition of guaranteeing the safe system.