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伴随我国城市集中供热事业的迅速发展,所形成的供热网路越来越大,这为节省能源,保护环境带来了许多好处。但是较大的城市供热系统的主循环泵的电耗也随之增大,并在运行费用中占很大比例。电能是国民生产中比较紧缺的高品位能源。能否减少主循环泵的电耗,这是当前面临的重要问题,而采用变速水泵方法可以大大节省电力,其效益相当可观。
With the rapid development of the urban centralized heating industry in China, the heat supply network formed has become larger and larger, which has brought many benefits for energy conservation and environmental protection. However, the power consumption of the main circulating pump of the larger urban heating system also increases, and it occupies a large proportion of the operating costs. Electric energy is a relatively high-grade energy source in the national production. Whether the power consumption of the main circulating pump can be reduced is an important issue currently facing, and the use of a variable speed water pump method can greatly save power, and its benefits are considerable.