集中供热是节约能源消耗的重要途径之一,我国北方城市处于寒冷地区,通常供采暖有热水网或蒸汽网两种方式,多数采用热水网,而工厂用热几无无例外地都供蒸汽。它也有两种方式:一种是从附近的热电厂供汽,另一种由自备锅炉或热机供汽,一般以后者居多数。因此,同一地区为满足生活和生产用热,往往汽网、水网两者都有。我国南方城市气候暖和,一般只对工厂生产用热供汽。选用哪一种热介质,则是建厂时首先要考虑的问题。因为它对一个热网的效能,热能利用程度和经济性都有重大的影响。 Central heating is one of the important ways to save energy consumption. Northern cities in China are located in cold regions and are usually equipped with heating and hot water networks or steam networks. Most of them use hot water networks, and factory heating is almost without exception. Steam. It also has two ways: one is to supply steam from a nearby thermal power plant, and the other is to supply steam from a self-contained boiler or heat engine, which is generally the majority of the latter. Therefore, in the same area, in order to meet the heat of life and production, there are often both steam nets and water nets. The climate in southern China’s cities is warm. Generally, only the factory supplies heat for steam production. Which kind of heat medium to use is the first question to consider when setting up a plant. Because it has a significant impact on the effectiveness of a heating network, the degree of thermal energy utilization and economic efficiency.