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随着社会主义经济向前发展,人民生活对热水供应的要求更加提高了,因此城市里热水供应负荷就相应地增长起来.目前在热化事业上采用热水供应系统有:闭式和开式——从管网里直接取水.闭式系统是热网里的水仅被利用来作为循环在管路中的带热体,开式系统则才不仅用作带热体,还直接供给城市热水需要;在选择合理的供热系统充时,必须进行技术经济比较.闭式系统到目前为止仍然是热水供应的重要系统,虽然,由于用户系统复杂,热水供应局部系统易生锈、积垢、用户调整困难,但是它的水处理费用不大,便于控制和监督系统的严密性,能保证供给和上水一样水质的热水.基于以上情况,目前在苏联闭式系统仍被广泛的采用着,我国也几乎全部
With the advancement of the socialist economy, people’s lives have become more demanding for hot water supply. As a result, the city’s hot water supply load has grown accordingly. Currently, the hot water supply system is used in the heating industry: closed and Open type - directly from the pipe network to take water. Closed system is the hot water in the network is only used as a circulating hot body in the pipeline, open system is not only used as a hot body, but also directly supply Urban hot water needs; when selecting a reasonable heating system, a technical and economic comparison must be made. The closed system is still an important system of hot water supply so far. However, due to the complexity of the user system, local systems of hot water supply are prone to be born. Rust, scale, and user adjustment are difficult, but its water treatment costs are not large, it is easy to control and supervise the tightness of the system, and it can guarantee the supply of hot water of the same quality as the water. Based on the above situation, the current closed system in the Soviet Union is still It is widely used and almost all of our country