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区域性集中供热是节能的重要方法之一,有其突出的优点: 1.解决该区域的全部供热及部份电能的供应。 2.可以选用大容量、高参数、高效率的锅炉机组,效率可达85％以上(原小型锅炉的效率仅65％左右),从而节省煤耗。 3.提高热能利用效率:我国一般电站的热能利用效率:中压机组为28％,高压机组为30％即每发1度电消耗标煤360克,而集中供热仅200克左右,因为它把背压蒸汽全部用在工艺生产上了,因而大大提高了热能利用效率,可达60～80％。 4.把大量陈旧的小型锅炉停用,节省了许多司炉工、水处理工。最近我院给某县搞了一个集中供热的方案,该县的工业比较集中,各厂之间相距较近,
Regional centralized heating is one of the important methods for energy saving, and has its outstanding advantages: 1. Resolve the entire heating supply and partial supply of electricity in the area. 2. Large-capacity, high-parameter, high-efficiency boiler units can be used, and the efficiency can reach over 85% (the efficiency of the original small boiler is only about 65%), thus saving coal consumption. 3. Improve the efficiency of thermal energy utilization: The thermal energy utilization efficiency of general power stations in China: 28% for medium voltage units, 30% for high pressure units, ie 360 grams of standard coal for 1 degree of electricity consumption, and only about 200 grams of central heating, because It uses back pressure steam for all process production, thus greatly improving the efficiency of thermal energy utilization, up to 60-80%. 4. The decommissioning of a large number of obsolete small boilers has saved many boiler workers and water treatment workers. Recently, our institute has provided a plan for centralized heating to a county. The industry in the county is relatively concentrated and the plants are relatively close together.