直供式供热管网热力站设计探讨
Heating station design of direct connection centralized heating network
摘要：
简要介绍了直供式供热系统的特点。为了保证直供式系统中热用户水力和热力工况的稳定、安全，探讨了分配式热力站的设计方案。以某县级市为例，在不同的主管网压力工况和热用户情况下，通过对水压图的分析，给出了不同类型的热分配站的设计示意图。分析了在直供式系统中采取分布式变频泵的优缺点，并与传统直供式系统的初投资和运行费用进行了对比。
Abstract：
Presents the features of direct connection heating system. To ensure the stability and safety of hydraulic and thermal regime of heat consumers in direct connection heating system, discusses the heating distribution station design. Taking a county-level city as an example, analyses the pressure diagram of different heat consumers and pressure conditions of first-level pipeline network, gives the design schematic plot of different kinds of heating distribution station. Analyses the advantage and disadvantage of the application of distributed variable frequency pump in direct connection heating system, and compares the initial investment and operating costs with the traditional system.
Keywords:direct connection heating system, centralized heating reconstruction, heating station, design, distributed variable frequency pump