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随着人民生活福利的提高和新的城市、工人村的建立,相应地发展了热水供应负荷.热水供应负荷是全年性负荷,同时热水供应要求水温低,可以利用低压抽汽加热.因此,热水供应负荷的发展对于热电站的经济性有所提高,也就促进热电站的发展.选择合理的供热系统也促使热水供应的发展.供热系统包括:(一)热电站内部热力系统;(二)热力网;(三)用户内部系统.现在,根据教学上一些材料和有关苏联专家的报告,分别就供热系统的各部分进行直接自管网取水的开放式系统和封闭式系统(局部用户并联热交换器系统)加以比较.
With the improvement of the people’s livelihood and the establishment of new cities and workers’ villages, the hot water supply load has been developed accordingly. The hot water supply load is a year-round load, while the hot water supply requires a low water temperature, and low-pressure steam extraction heating can be used. Therefore, the development of the hot water supply load has increased the economic efficiency of thermal power plants, which also promotes the development of thermal power plants. Choosing a reasonable heating system also promotes the development of hot water supply. The heating system includes: (1) Thermal power Station internal thermal system; (b) thermal network; (c) internal user system. Now, based on teaching materials and relevant Soviet expert reports, separate open systems for direct water extraction from the pipe network for each part of the heating system. Compare with closed system (local user parallel heat exchanger system).